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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-07-11 00:31:36 +0900
committerRalf Baechle <ralf@linux-mips.org>2008-07-15 18:44:35 +0100
commit22b1d707ffc99faebd86257ad19d5bb9fc624734 (patch)
tree9bd0bcd3878611d74db29e17f3c6e951f4656e61 /arch/mips/txx9
parent14476007c90005c8992b786c15a59cca31f53268 (diff)
downloadlinux-22b1d707ffc99faebd86257ad19d5bb9fc624734.tar.bz2
[MIPS] TXx9: Reorganize code
Move arch/mips/{jmr3927,tx4927,tx4938} into arch/mips/txx9/ tree. This will help more code sharing and maintainance. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/txx9')
-rw-r--r--arch/mips/txx9/Kconfig28
-rw-r--r--arch/mips/txx9/generic/Makefile10
-rw-r--r--arch/mips/txx9/generic/dbgio.c48
-rw-r--r--arch/mips/txx9/generic/irq_tx4927.c64
-rw-r--r--arch/mips/txx9/generic/irq_tx4938.c48
-rw-r--r--arch/mips/txx9/generic/mem_tx4927.c141
-rw-r--r--arch/mips/txx9/generic/mem_tx4938.c124
-rw-r--r--arch/mips/txx9/generic/smsc_fdc37m81x.c172
-rw-r--r--arch/mips/txx9/jmr3927/Makefile8
-rw-r--r--arch/mips/txx9/jmr3927/init.c57
-rw-r--r--arch/mips/txx9/jmr3927/irq.c174
-rw-r--r--arch/mips/txx9/jmr3927/kgdb_io.c105
-rw-r--r--arch/mips/txx9/jmr3927/prom.c98
-rw-r--r--arch/mips/txx9/jmr3927/setup.c445
-rw-r--r--arch/mips/txx9/rbtx4927/Makefile3
-rw-r--r--arch/mips/txx9/rbtx4927/irq.c214
-rw-r--r--arch/mips/txx9/rbtx4927/prom.c91
-rw-r--r--arch/mips/txx9/rbtx4927/setup.c703
-rw-r--r--arch/mips/txx9/rbtx4938/Makefile3
-rw-r--r--arch/mips/txx9/rbtx4938/irq.c159
-rw-r--r--arch/mips/txx9/rbtx4938/prom.c72
-rw-r--r--arch/mips/txx9/rbtx4938/setup.c1122
-rw-r--r--arch/mips/txx9/rbtx4938/spi_eeprom.c99
23 files changed, 3988 insertions, 0 deletions
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
new file mode 100644
index 000000000000..98d103402b10
--- /dev/null
+++ b/arch/mips/txx9/Kconfig
@@ -0,0 +1,28 @@
+config TOSHIBA_FPCIB0
+ bool "FPCIB0 Backplane Support"
+ depends on TOSHIBA_RBTX4927
+
+if TOSHIBA_RBTX4938
+
+comment "Multiplex Pin Select"
+choice
+ prompt "PIO[58:61]"
+ default TOSHIBA_RBTX4938_MPLEX_PIO58_61
+
+config TOSHIBA_RBTX4938_MPLEX_PIO58_61
+ bool "PIO"
+config TOSHIBA_RBTX4938_MPLEX_NAND
+ bool "NAND"
+config TOSHIBA_RBTX4938_MPLEX_ATA
+ bool "ATA"
+
+endchoice
+
+config TX4938_NAND_BOOT
+ depends on EXPERIMENTAL && TOSHIBA_RBTX4938_MPLEX_NAND
+ bool "NAND Boot Support (EXPERIMENTAL)"
+ help
+ This is only for Toshiba RBTX4938 reference board, which has NAND IPL.
+ Select this option if you need to use NAND boot.
+
+endif
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
new file mode 100644
index 000000000000..8cb4a7e81473
--- /dev/null
+++ b/arch/mips/txx9/generic/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for common code for TXx9 based systems
+#
+
+obj-$(CONFIG_TOSHIBA_RBTX4927) += mem_tx4927.o irq_tx4927.o
+obj-$(CONFIG_TOSHIBA_RBTX4938) += mem_tx4938.o irq_tx4938.o
+obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o
+obj-$(CONFIG_KGDB) += dbgio.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/generic/dbgio.c b/arch/mips/txx9/generic/dbgio.c
new file mode 100644
index 000000000000..33b9c672a322
--- /dev/null
+++ b/arch/mips/txx9/generic/dbgio.c
@@ -0,0 +1,48 @@
+/*
+ * linux/arch/mips/tx4938/common/dbgio.c
+ *
+ * kgdb interface for gdb
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * Copyright 2005 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Support for TX4938 in 2.6 - Hiroshi DOYU <Hiroshi_DOYU@montavista.co.jp>
+ */
+
+#include <linux/types>
+
+extern u8 txx9_sio_kdbg_rd(void);
+extern int txx9_sio_kdbg_wr( u8 ch );
+
+u8 getDebugChar(void)
+{
+ return (txx9_sio_kdbg_rd());
+}
+
+int putDebugChar(u8 byte)
+{
+ return (txx9_sio_kdbg_wr(byte));
+}
+
diff --git a/arch/mips/txx9/generic/irq_tx4927.c b/arch/mips/txx9/generic/irq_tx4927.c
new file mode 100644
index 000000000000..685ecc2ed551
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -0,0 +1,64 @@
+/*
+ * Common tx4927 irq handler
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+#ifdef CONFIG_TOSHIBA_RBTX4927
+#include <asm/txx9/rbtx4927.h>
+#endif
+
+void __init tx4927_irq_init(void)
+{
+ mips_cpu_irq_init();
+ txx9_irq_init(TX4927_IRC_REG);
+ set_irq_chained_handler(TX4927_IRQ_NEST_PIC_ON_CP0, handle_simple_irq);
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+
+ if (pending & STATUSF_IP7) /* cpu timer */
+ do_IRQ(TX4927_IRQ_CPU_TIMER);
+ else if (pending & STATUSF_IP2) { /* tx4927 pic */
+ int irq = txx9_irq();
+#ifdef CONFIG_TOSHIBA_RBTX4927
+ if (irq == TX4927_IRQ_NEST_EXT_ON_PIC)
+ irq = toshiba_rbtx4927_irq_nested(irq);
+#endif
+ if (unlikely(irq < 0)) {
+ spurious_interrupt();
+ return;
+ }
+ do_IRQ(irq);
+ } else if (pending & STATUSF_IP0) /* user line 0 */
+ do_IRQ(TX4927_IRQ_USER0);
+ else if (pending & STATUSF_IP1) /* user line 1 */
+ do_IRQ(TX4927_IRQ_USER1);
+ else
+ spurious_interrupt();
+}
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
new file mode 100644
index 000000000000..0886d9138818
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -0,0 +1,48 @@
+/*
+ * linux/arch/mips/tx4938/common/irq.c
+ *
+ * Common tx4938 irq handler
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9/rbtx4938.h>
+
+void __init
+tx4938_irq_init(void)
+{
+ mips_cpu_irq_init();
+ txx9_irq_init(TX4938_IRC_REG);
+ set_irq_chained_handler(TX4938_IRQ_NEST_PIC_ON_CP0, handle_simple_irq);
+}
+
+int toshiba_rbtx4938_irq_nested(int irq);
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned int pending = read_c0_cause() & read_c0_status();
+
+ if (pending & STATUSF_IP7)
+ do_IRQ(TX4938_IRQ_CPU_TIMER);
+ else if (pending & STATUSF_IP2) {
+ int irq = txx9_irq();
+ if (irq == TX4938_IRQ_PIC_BEG + TX4938_IR_INT(0))
+ irq = toshiba_rbtx4938_irq_nested(irq);
+ if (irq >= 0)
+ do_IRQ(irq);
+ else
+ spurious_interrupt();
+ } else if (pending & STATUSF_IP1)
+ do_IRQ(TX4938_IRQ_USER1);
+ else if (pending & STATUSF_IP0)
+ do_IRQ(TX4938_IRQ_USER0);
+}
diff --git a/arch/mips/txx9/generic/mem_tx4927.c b/arch/mips/txx9/generic/mem_tx4927.c
new file mode 100644
index 000000000000..12dfc377bf2f
--- /dev/null
+++ b/arch/mips/txx9/generic/mem_tx4927.c
@@ -0,0 +1,141 @@
+/*
+ * linux/arch/mips/tx4927/common/tx4927_prom.c
+ *
+ * common tx4927 memory interface
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+static unsigned int __init tx4927_process_sdccr(unsigned long addr)
+{
+ u64 val;
+ unsigned int sdccr_ce;
+ unsigned int sdccr_bs;
+ unsigned int sdccr_rs;
+ unsigned int sdccr_cs;
+ unsigned int sdccr_mw;
+ unsigned int bs = 0;
+ unsigned int rs = 0;
+ unsigned int cs = 0;
+ unsigned int mw = 0;
+ unsigned int msize = 0;
+
+ val = __raw_readq((void __iomem *)addr);
+
+ /* MVMCP -- need #defs for these bits masks */
+ sdccr_ce = ((val & (1 << 10)) >> 10);
+ sdccr_bs = ((val & (1 << 8)) >> 8);
+ sdccr_rs = ((val & (3 << 5)) >> 5);
+ sdccr_cs = ((val & (3 << 2)) >> 2);
+ sdccr_mw = ((val & (1 << 0)) >> 0);
+
+ if (sdccr_ce) {
+ switch (sdccr_bs) {
+ case 0:{
+ bs = 2;
+ break;
+ }
+ case 1:{
+ bs = 4;
+ break;
+ }
+ }
+ switch (sdccr_rs) {
+ case 0:{
+ rs = 2048;
+ break;
+ }
+ case 1:{
+ rs = 4096;
+ break;
+ }
+ case 2:{
+ rs = 8192;
+ break;
+ }
+ case 3:{
+ rs = 0;
+ break;
+ }
+ }
+ switch (sdccr_cs) {
+ case 0:{
+ cs = 256;
+ break;
+ }
+ case 1:{
+ cs = 512;
+ break;
+ }
+ case 2:{
+ cs = 1024;
+ break;
+ }
+ case 3:{
+ cs = 2048;
+ break;
+ }
+ }
+ switch (sdccr_mw) {
+ case 0:{
+ mw = 8;
+ break;
+ } /* 8 bytes = 64 bits */
+ case 1:{
+ mw = 4;
+ break;
+ } /* 4 bytes = 32 bits */
+ }
+ }
+
+ /* bytes per chip MB per chip num chips */
+ msize = (((rs * cs * mw) / (1024 * 1024)) * bs);
+
+ return (msize);
+}
+
+
+unsigned int __init tx4927_get_mem_size(void)
+{
+ unsigned int c0;
+ unsigned int c1;
+ unsigned int c2;
+ unsigned int c3;
+ unsigned int total;
+
+ /* MVMCP -- need #defs for these registers */
+ c0 = tx4927_process_sdccr(0xff1f8000);
+ c1 = tx4927_process_sdccr(0xff1f8008);
+ c2 = tx4927_process_sdccr(0xff1f8010);
+ c3 = tx4927_process_sdccr(0xff1f8018);
+ total = c0 + c1 + c2 + c3;
+
+ return (total);
+}
diff --git a/arch/mips/txx9/generic/mem_tx4938.c b/arch/mips/txx9/generic/mem_tx4938.c
new file mode 100644
index 000000000000..20baeaeba4cd
--- /dev/null
+++ b/arch/mips/txx9/generic/mem_tx4938.c
@@ -0,0 +1,124 @@
+/*
+ * linux/arch/mips/tx4938/common/prom.c
+ *
+ * common tx4938 memory interface
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+static unsigned int __init
+tx4938_process_sdccr(u64 * addr)
+{
+ u64 val;
+ unsigned int sdccr_ce;
+ unsigned int sdccr_rs;
+ unsigned int sdccr_cs;
+ unsigned int sdccr_mw;
+ unsigned int rs = 0;
+ unsigned int cs = 0;
+ unsigned int mw = 0;
+ unsigned int bc = 4;
+ unsigned int msize = 0;
+
+ val = ____raw_readq((void __iomem *)addr);
+
+ /* MVMCP -- need #defs for these bits masks */
+ sdccr_ce = ((val & (1 << 10)) >> 10);
+ sdccr_rs = ((val & (3 << 5)) >> 5);
+ sdccr_cs = ((val & (7 << 2)) >> 2);
+ sdccr_mw = ((val & (1 << 0)) >> 0);
+
+ if (sdccr_ce) {
+ switch (sdccr_rs) {
+ case 0:{
+ rs = 2048;
+ break;
+ }
+ case 1:{
+ rs = 4096;
+ break;
+ }
+ case 2:{
+ rs = 8192;
+ break;
+ }
+ default:{
+ rs = 0;
+ break;
+ }
+ }
+ switch (sdccr_cs) {
+ case 0:{
+ cs = 256;
+ break;
+ }
+ case 1:{
+ cs = 512;
+ break;
+ }
+ case 2:{
+ cs = 1024;
+ break;
+ }
+ case 3:{
+ cs = 2048;
+ break;
+ }
+ case 4:{
+ cs = 4096;
+ break;
+ }
+ default:{
+ cs = 0;
+ break;
+ }
+ }
+ switch (sdccr_mw) {
+ case 0:{
+ mw = 8;
+ break;
+ } /* 8 bytes = 64 bits */
+ case 1:{
+ mw = 4;
+ break;
+ } /* 4 bytes = 32 bits */
+ }
+ }
+
+ /* bytes per chip MB per chip bank count */
+ msize = (((rs * cs * mw) / (1024 * 1024)) * (bc));
+
+ /* MVMCP -- bc hard coded to 4 from table 9.3.1 */
+ /* boad supports bc=2 but no way to detect */
+
+ return (msize);
+}
+
+unsigned int __init
+tx4938_get_mem_size(void)
+{
+ unsigned int c0;
+ unsigned int c1;
+ unsigned int c2;
+ unsigned int c3;
+ unsigned int total;
+
+ /* MVMCP -- need #defs for these registers */
+ c0 = tx4938_process_sdccr((u64 *) 0xff1f8000);
+ c1 = tx4938_process_sdccr((u64 *) 0xff1f8008);
+ c2 = tx4938_process_sdccr((u64 *) 0xff1f8010);
+ c3 = tx4938_process_sdccr((u64 *) 0xff1f8018);
+ total = c0 + c1 + c2 + c3;
+
+ return (total);
+}
diff --git a/arch/mips/txx9/generic/smsc_fdc37m81x.c b/arch/mips/txx9/generic/smsc_fdc37m81x.c
new file mode 100644
index 000000000000..69e487467fa5
--- /dev/null
+++ b/arch/mips/txx9/generic/smsc_fdc37m81x.c
@@ -0,0 +1,172 @@
+/*
+ * Interface for smsc fdc48m81x Super IO chip
+ *
+ * Author: MontaVista Software, Inc. source@mvista.com
+ *
+ * 2001-2003 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Copyright 2004 (c) MontaVista Software, Inc.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+
+#define DEBUG
+
+/* Common Registers */
+#define SMSC_FDC37M81X_CONFIG_INDEX 0x00
+#define SMSC_FDC37M81X_CONFIG_DATA 0x01
+#define SMSC_FDC37M81X_CONF 0x02
+#define SMSC_FDC37M81X_INDEX 0x03
+#define SMSC_FDC37M81X_DNUM 0x07
+#define SMSC_FDC37M81X_DID 0x20
+#define SMSC_FDC37M81X_DREV 0x21
+#define SMSC_FDC37M81X_PCNT 0x22
+#define SMSC_FDC37M81X_PMGT 0x23
+#define SMSC_FDC37M81X_OSC 0x24
+#define SMSC_FDC37M81X_CONFPA0 0x26
+#define SMSC_FDC37M81X_CONFPA1 0x27
+#define SMSC_FDC37M81X_TEST4 0x2B
+#define SMSC_FDC37M81X_TEST5 0x2C
+#define SMSC_FDC37M81X_TEST1 0x2D
+#define SMSC_FDC37M81X_TEST2 0x2E
+#define SMSC_FDC37M81X_TEST3 0x2F
+
+/* Logical device numbers */
+#define SMSC_FDC37M81X_FDD 0x00
+#define SMSC_FDC37M81X_SERIAL1 0x04
+#define SMSC_FDC37M81X_SERIAL2 0x05
+#define SMSC_FDC37M81X_KBD 0x07
+
+/* Logical device Config Registers */
+#define SMSC_FDC37M81X_ACTIVE 0x30
+#define SMSC_FDC37M81X_BASEADDR0 0x60
+#define SMSC_FDC37M81X_BASEADDR1 0x61
+#define SMSC_FDC37M81X_INT 0x70
+#define SMSC_FDC37M81X_INT2 0x72
+#define SMSC_FDC37M81X_MODE 0xF0
+
+/* Chip Config Values */
+#define SMSC_FDC37M81X_CONFIG_ENTER 0x55
+#define SMSC_FDC37M81X_CONFIG_EXIT 0xaa
+#define SMSC_FDC37M81X_CHIP_ID 0x4d
+
+static unsigned long g_smsc_fdc37m81x_base = 0;
+
+static inline unsigned char smsc_fdc37m81x_rd(unsigned char index)
+{
+ outb(index, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+
+ return inb(g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_DATA);
+}
+
+static inline void smsc_dc37m81x_wr(unsigned char index, unsigned char data)
+{
+ outb(index, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+ outb(data, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_DATA);
+}
+
+void smsc_fdc37m81x_config_beg(void)
+{
+ if (g_smsc_fdc37m81x_base) {
+ outb(SMSC_FDC37M81X_CONFIG_ENTER,
+ g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+ }
+}
+
+void smsc_fdc37m81x_config_end(void)
+{
+ if (g_smsc_fdc37m81x_base)
+ outb(SMSC_FDC37M81X_CONFIG_EXIT,
+ g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+}
+
+u8 smsc_fdc37m81x_config_get(u8 reg)
+{
+ u8 val = 0;
+
+ if (g_smsc_fdc37m81x_base)
+ val = smsc_fdc37m81x_rd(reg);
+
+ return val;
+}
+
+void smsc_fdc37m81x_config_set(u8 reg, u8 val)
+{
+ if (g_smsc_fdc37m81x_base)
+ smsc_dc37m81x_wr(reg, val);
+}
+
+unsigned long __init smsc_fdc37m81x_init(unsigned long port)
+{
+ const int field = sizeof(unsigned long) * 2;
+ u8 chip_id;
+
+ if (g_smsc_fdc37m81x_base)
+ printk("smsc_fdc37m81x_init() stepping on old base=0x%0*lx\n",
+ field, g_smsc_fdc37m81x_base);
+
+ g_smsc_fdc37m81x_base = port;
+
+ smsc_fdc37m81x_config_beg();
+
+ chip_id = smsc_fdc37m81x_rd(SMSC_FDC37M81X_DID);
+ if (chip_id == SMSC_FDC37M81X_CHIP_ID)
+ smsc_fdc37m81x_config_end();
+ else {
+ printk("smsc_fdc37m81x_init() unknow chip id 0x%02x\n",
+ chip_id);
+ g_smsc_fdc37m81x_base = 0;
+ }
+
+ return g_smsc_fdc37m81x_base;
+}
+
+#ifdef DEBUG
+void smsc_fdc37m81x_config_dump_one(char *key, u8 dev, u8 reg)
+{
+ printk("%s: dev=0x%02x reg=0x%02x val=0x%02x\n", key, dev, reg,
+ smsc_fdc37m81x_rd(reg));
+}
+
+void smsc_fdc37m81x_config_dump(void)
+{
+ u8 orig;
+ char *fname = "smsc_fdc37m81x_config_dump()";
+
+ smsc_fdc37m81x_config_beg();
+
+ orig = smsc_fdc37m81x_rd(SMSC_FDC37M81X_DNUM);
+
+ printk("%s: common\n", fname);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_DNUM);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_DID);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_DREV);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_PCNT);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_PMGT);
+
+ printk("%s: keyboard\n", fname);
+ smsc_dc37m81x_wr(SMSC_FDC37M81X_DNUM, SMSC_FDC37M81X_KBD);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_ACTIVE);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_INT);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_INT2);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_LDCR_F0);
+
+ smsc_dc37m81x_wr(SMSC_FDC37M81X_DNUM, orig);
+
+ smsc_fdc37m81x_config_end();
+}
+#endif
diff --git a/arch/mips/txx9/jmr3927/Makefile b/arch/mips/txx9/jmr3927/Makefile
new file mode 100644
index 000000000000..5f83ea375225
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for TOSHIBA JMR-TX3927 board
+#
+
+obj-y += prom.o init.o irq.o setup.o
+obj-$(CONFIG_KGDB) += kgdb_io.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/jmr3927/init.c b/arch/mips/txx9/jmr3927/init.c
new file mode 100644
index 000000000000..1bbb5343baf4
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/init.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ *
+ * arch/mips/jmr3927/common/init.c
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/jmr3927.h>
+
+extern void __init prom_init_cmdline(void);
+
+const char *get_system_type(void)
+{
+ return "Toshiba"
+#ifdef CONFIG_TOSHIBA_JMR3927
+ " JMR_TX3927"
+#endif
+ ;
+}
+
+extern void puts(const char *cp);
+
+void __init prom_init(void)
+{
+#ifdef CONFIG_TOSHIBA_JMR3927
+ /* CCFG */
+ if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
+ puts("Warning: TX3927 TLB off\n");
+#endif
+
+ prom_init_cmdline();
+ add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c
new file mode 100644
index 000000000000..85e1daf15c7b
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+
+#include <asm/processor.h>
+#include <asm/txx9/jmr3927.h>
+
+#if JMR3927_IRQ_END > NR_IRQS
+#error JMR3927_IRQ_END > NR_IRQS
+#endif
+
+static unsigned char irc_level[TX3927_NUM_IR] = {
+ 5, 5, 5, 5, 5, 5, /* INT[5:0] */
+ 7, 7, /* SIO */
+ 5, 5, 5, 0, 0, /* DMA, PIO, PCI */
+ 6, 6, 6 /* TMR */
+};
+
+/*
+ * CP0_STATUS is a thread's resource (saved/restored on context switch).
+ * So disable_irq/enable_irq MUST handle IOC/IRC registers.
+ */
+static void mask_irq_ioc(unsigned int irq)
+{
+ /* 0: mask */
+ unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+ unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
+ unsigned int bit = 1 << irq_nr;
+ jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR);
+ /* flush write buffer */
+ (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
+}
+static void unmask_irq_ioc(unsigned int irq)
+{
+ /* 0: mask */
+ unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+ unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
+ unsigned int bit = 1 << irq_nr;
+ jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR);
+ /* flush write buffer */
+ (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned long cp0_cause = read_c0_cause();
+ int irq;
+
+ if ((cp0_cause & CAUSEF_IP7) == 0)
+ return;
+ irq = (cp0_cause >> CAUSEB_IP2) & 0x0f;
+
+ do_IRQ(irq + JMR3927_IRQ_IRC);
+}
+
+static irqreturn_t jmr3927_ioc_interrupt(int irq, void *dev_id)
+{
+ unsigned char istat = jmr3927_ioc_reg_in(JMR3927_IOC_INTS2_ADDR);
+ int i;
+
+ for (i = 0; i < JMR3927_NR_IRQ_IOC; i++) {
+ if (istat & (1 << i)) {
+ irq = JMR3927_IRQ_IOC + i;
+ do_IRQ(irq);
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static struct irqaction ioc_action = {
+ .handler = jmr3927_ioc_interrupt,
+ .mask = CPU_MASK_NONE,
+ .name = "IOC",
+};
+
+static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
+{
+ printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
+ printk(KERN_WARNING "pcistat:%02x, lbstat:%04lx\n",
+ tx3927_pcicptr->pcistat, tx3927_pcicptr->lbstat);
+
+ return IRQ_HANDLED;
+}
+static struct irqaction pcierr_action = {
+ .handler = jmr3927_pcierr_interrupt,
+ .mask = CPU_MASK_NONE,
+ .name = "PCI error",
+};
+
+static void __init jmr3927_irq_init(void);
+
+void __init arch_init_irq(void)
+{
+ /* Now, interrupt control disabled, */
+ /* all IRC interrupts are masked, */
+ /* all IRC interrupt mode are Low Active. */
+
+ /* mask all IOC interrupts */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_INTM_ADDR);
+ /* setup IOC interrupt mode (SOFT:High Active, Others:Low Active) */
+ jmr3927_ioc_reg_out(JMR3927_IOC_INTF_SOFT, JMR3927_IOC_INTP_ADDR);
+
+ /* clear PCI Soft interrupts */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_INTS1_ADDR);
+ /* clear PCI Reset interrupts */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+
+ jmr3927_irq_init();
+
+ /* setup IOC interrupt 1 (PCI, MODEM) */
+ setup_irq(JMR3927_IRQ_IOCINT, &ioc_action);
+
+#ifdef CONFIG_PCI
+ setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
+#endif
+
+ /* enable all CPU interrupt bits. */
+ set_c0_status(ST0_IM); /* IE bit is still 0. */
+}
+
+static struct irq_chip jmr3927_irq_ioc = {
+ .name = "jmr3927_ioc",
+ .ack = mask_irq_ioc,
+ .mask = mask_irq_ioc,
+ .mask_ack = mask_irq_ioc,
+ .unmask = unmask_irq_ioc,
+};
+
+static void __init jmr3927_irq_init(void)
+{
+ u32 i;
+
+ txx9_irq_init(TX3927_IRC_REG);
+ for (i = 0; i < TXx9_MAX_IR; i++)
+ txx9_irq_set_pri(i, irc_level[i]);
+ for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++)
+ set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq);
+}
diff --git a/arch/mips/txx9/jmr3927/kgdb_io.c b/arch/mips/txx9/jmr3927/kgdb_io.c
new file mode 100644
index 000000000000..5bd757e56f79
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/kgdb_io.c
@@ -0,0 +1,105 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Low level uart routines to directly access a TX[34]927 SIO.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com or source@mvista.com
+ *
+ * Based on arch/mips/ddb5xxx/ddb5477/kgdb_io.c
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <asm/txx9/jmr3927.h>
+
+#define TIMEOUT 0xffffff
+
+static int remoteDebugInitialized = 0;
+static void debugInit(int baud);
+
+int putDebugChar(unsigned char c)
+{
+ int i = 0;
+
+ if (!remoteDebugInitialized) {
+ remoteDebugInitialized = 1;
+ debugInit(38400);
+ }
+
+ do {
+ slow_down();
+ i++;
+ if (i>TIMEOUT) {
+ break;
+ }
+ } while (!(tx3927_sioptr(0)->cisr & TXx927_SICISR_TXALS));
+ tx3927_sioptr(0)->tfifo = c;
+
+ return 1;
+}
+
+unsigned char getDebugChar(void)
+{
+ int i = 0;
+ int dicr;
+ char c;
+
+ if (!remoteDebugInitialized) {
+ remoteDebugInitialized = 1;
+ debugInit(38400);
+ }
+
+ /* diable RX int. */
+ dicr = tx3927_sioptr(0)->dicr;
+ tx3927_sioptr(0)->dicr = 0;
+
+ do {
+ slow_down();
+ i++;
+ if (i>TIMEOUT) {
+ break;
+ }
+ } while (tx3927_sioptr(0)->disr & TXx927_SIDISR_UVALID)
+ ;
+ c = tx3927_sioptr(0)->rfifo;
+
+ /* clear RX int. status */
+ tx3927_sioptr(0)->disr &= ~TXx927_SIDISR_RDIS;
+ /* enable RX int. */
+ tx3927_sioptr(0)->dicr = dicr;
+
+ return c;
+}
+
+static void debugInit(int baud)
+{
+ tx3927_sioptr(0)->lcr = 0x020;
+ tx3927_sioptr(0)->dicr = 0;
+ tx3927_sioptr(0)->disr = 0x4100;
+ tx3927_sioptr(0)->cisr = 0x014;
+ tx3927_sioptr(0)->fcr = 0;
+ tx3927_sioptr(0)->flcr = 0x02;
+ tx3927_sioptr(0)->bgr = ((JMR3927_BASE_BAUD + baud / 2) / baud) |
+ TXx927_SIBGR_BCLK_T0;
+}
diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c
new file mode 100644
index 000000000000..8bc1049b622e
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/prom.c
@@ -0,0 +1,98 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * PROM library initialisation code, assuming a version of
+ * pmon is the boot code.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ *
+ * Based on arch/mips/au1000/common/prom.c
+ *
+ * This file was derived from Carsten Langgaard's
+ * arch/mips/mips-boards/xx files.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/txx9/tx3927.h>
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+
+void __init prom_init_cmdline(void)
+{
+ char *cp;
+ int actr;
+ int prom_argc = fw_arg0;
+ char **prom_argv = (char **) fw_arg1;
+
+ actr = 1; /* Always ignore argv[0] */
+
+ cp = &(arcs_cmdline[0]);
+ while(actr < prom_argc) {
+ strcpy(cp, prom_argv[actr]);
+ cp += strlen(prom_argv[actr]);
+ *cp++ = ' ';
+ actr++;
+ }
+ if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
+ --cp;
+ *cp = '\0';
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+#define TIMEOUT 0xffffff
+
+void
+prom_putchar(char c)
+{
+ int i = 0;
+
+ do {
+ i++;
+ if (i>TIMEOUT)
+ break;
+ } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+ tx3927_sioptr(1)->tfifo = c;
+ return;
+}
+
+void
+puts(const char *cp)
+{
+ while (*cp)
+ prom_putchar(*cp++);
+ prom_putchar('\r');
+ prom_putchar('\n');
+}
diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
new file mode 100644
index 000000000000..41e0f3b3af2c
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -0,0 +1,445 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/reboot.h>
+#include <asm/txx9/jmr3927.h>
+#include <asm/mipsregs.h>
+
+extern void puts(const char *cp);
+
+/* don't enable - see errata */
+static int jmr3927_ccfg_toeon;
+
+static inline void do_reset(void)
+{
+#if 1 /* Resetting PCI bus */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+ jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
+ (void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR); /* flush WB */
+ mdelay(1);
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+#endif
+ jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
+}
+
+static void jmr3927_machine_restart(char *command)
+{
+ local_irq_disable();
+ puts("Rebooting...");
+ do_reset();
+}
+
+static void jmr3927_machine_halt(void)
+{
+ puts("JMR-TX3927 halted.\n");
+ while (1);
+}
+
+static void jmr3927_machine_power_off(void)
+{
+ puts("JMR-TX3927 halted. Please turn off the power.\n");
+ while (1);
+}
+
+void __init plat_time_init(void)
+{
+ txx9_clockevent_init(TX3927_TMR_REG(0),
+ TXX9_IRQ_BASE + JMR3927_IRQ_IRC_TMR(0),
+ JMR3927_IMCLK);
+ txx9_clocksource_init(TX3927_TMR_REG(1), JMR3927_IMCLK);
+}
+
+#define DO_WRITE_THROUGH
+#define DO_ENABLE_CACHE
+
+extern char * __init prom_getcmdline(void);
+static void jmr3927_board_init(void);
+extern struct resource pci_io_resource;
+extern struct resource pci_mem_resource;
+
+void __init plat_mem_setup(void)
+{
+ char *argptr;
+
+ set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);
+
+ _machine_restart = jmr3927_machine_restart;
+ _machine_halt = jmr3927_machine_halt;
+ pm_power_off = jmr3927_machine_power_off;
+
+ /*
+ * IO/MEM resources.
+ */
+ ioport_resource.start = pci_io_resource.start;
+ ioport_resource.end = pci_io_resource.end;
+ iomem_resource.start = 0;
+ iomem_resource.end = 0xffffffff;
+
+ /* Reboot on panic */
+ panic_timeout = 180;
+
+ /* cache setup */
+ {
+ unsigned int conf;
+#ifdef DO_ENABLE_CACHE
+ int mips_ic_disable = 0, mips_dc_disable = 0;
+#else
+ int mips_ic_disable = 1, mips_dc_disable = 1;
+#endif
+#ifdef DO_WRITE_THROUGH
+ int mips_config_cwfon = 0;
+ int mips_config_wbon = 0;
+#else
+ int mips_config_cwfon = 1;
+ int mips_config_wbon = 1;
+#endif
+
+ conf = read_c0_conf();
+ conf &= ~(TX39_CONF_ICE | TX39_CONF_DCE | TX39_CONF_WBON | TX39_CONF_CWFON);
+ conf |= mips_ic_disable ? 0 : TX39_CONF_ICE;
+ conf |= mips_dc_disable ? 0 : TX39_CONF_DCE;
+ conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
+ conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;
+
+ write_c0_conf(conf);
+ write_c0_cache(0);
+ }
+
+ /* initialize board */
+ jmr3927_board_init();
+
+ argptr = prom_getcmdline();
+
+ if ((argptr = strstr(argptr, "toeon")) != NULL)
+ jmr3927_ccfg_toeon = 1;
+ argptr = prom_getcmdline();
+ if ((argptr = strstr(argptr, "ip=")) == NULL) {
+ argptr = prom_getcmdline();
+ strcat(argptr, " ip=bootp");
+ }
+
+#ifdef CONFIG_SERIAL_TXX9
+ {
+ extern int early_serial_txx9_setup(struct uart_port *port);
+ int i;
+ struct uart_port req;
+ for(i = 0; i < 2; i++) {
+ memset(&req, 0, sizeof(req));
+ req.line = i;
+ req.iotype = UPIO_MEM;
+ req.membase = (unsigned char __iomem *)TX3927_SIO_REG(i);
+ req.mapbase = TX3927_SIO_REG(i);
+ req.irq = i == 0 ?
+ JMR3927_IRQ_IRC_SIO0 : JMR3927_IRQ_IRC_SIO1;
+ if (i == 0)
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ req.uartclk = JMR3927_IMCLK;
+ early_serial_txx9_setup(&req);
+ }
+ }
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+ argptr = prom_getcmdline();
+ if ((argptr = strstr(argptr, "console=")) == NULL) {
+ argptr = prom_getcmdline();
+ strcat(argptr, " console=ttyS1,115200");
+ }
+#endif
+#endif
+}
+
+static void tx3927_setup(void);
+
+static void __init jmr3927_board_init(void)
+{
+ tx3927_setup();
+
+ /* SIO0 DTR on */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
+
+ jmr3927_led_set(0);
+
+ printk("JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
+ jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
+ jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
+ jmr3927_dipsw1(), jmr3927_dipsw2(),
+ jmr3927_dipsw3(), jmr3927_dipsw4());
+}
+
+static void __init tx3927_setup(void)
+{
+ int i;
+#ifdef CONFIG_PCI
+ unsigned long mips_pci_io_base = JMR3927_PCIIO;
+ unsigned long mips_pci_io_size = JMR3927_PCIIO_SIZE;
+ unsigned long mips_pci_mem_base = JMR3927_PCIMEM;
+ unsigned long mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
+ /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+ unsigned long mips_pci_io_pciaddr = 0;
+#endif
+
+ /* SDRAMC are configured by PROM */
+
+ /* ROMC */
+ tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
+ tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
+ tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
+ tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;
+
+ /* CCFG */
+ /* enable Timeout BusError */
+ if (jmr3927_ccfg_toeon)
+ tx3927_ccfgptr->ccfg |= TX3927_CCFG_TOE;
+
+ /* clear BusErrorOnWrite flag */
+ tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_BEOW;
+ /* Disable PCI snoop */
+ tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_PSNP;
+ /* do reset on watchdog */
+ tx3927_ccfgptr->ccfg |= TX3927_CCFG_WR;
+
+#ifdef DO_WRITE_THROUGH
+ /* Enable PCI SNOOP - with write through only */
+ tx3927_ccfgptr->ccfg |= TX3927_CCFG_PSNP;
+#endif
+
+ /* Pin selection */
+ tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
+ tx3927_ccfgptr->pcfg |=
+ TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
+ (TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));
+
+ printk("TX3927 -- CRIR:%08lx CCFG:%08lx PCFG:%08lx\n",
+ tx3927_ccfgptr->crir,
+ tx3927_ccfgptr->ccfg, tx3927_ccfgptr->pcfg);
+
+ /* TMR */
+ for (i = 0; i < TX3927_NR_TMR; i++)
+ txx9_tmr_init(TX3927_TMR_REG(i));
+
+ /* DMA */
+ tx3927_dmaptr->mcr = 0;
+ for (i = 0; i < ARRAY_SIZE(tx3927_dmaptr->ch); i++) {
+ /* reset channel */
+ tx3927_dmaptr->ch[i].ccr = TX3927_DMA_CCR_CHRST;
+ tx3927_dmaptr->ch[i].ccr = 0;
+ }
+ /* enable DMA */
+#ifdef __BIG_ENDIAN
+ tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN;
+#else
+ tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
+#endif
+
+#ifdef CONFIG_PCI
+ /* PCIC */
+ printk("TX3927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:",
+ tx3927_pcicptr->did, tx3927_pcicptr->vid,
+ tx3927_pcicptr->rid);
+ if (!(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB)) {
+ printk("External\n");
+ /* XXX */
+ } else {
+ printk("Internal\n");
+
+ /* Reset PCI Bus */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+ udelay(100);
+ jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+ JMR3927_IOC_RESET_ADDR);
+ udelay(100);
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+
+
+ /* Disable External PCI Config. Access */
+ tx3927_pcicptr->lbc = TX3927_PCIC_LBC_EPCAD;
+#ifdef __BIG_ENDIAN
+ tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_IBSE |
+ TX3927_PCIC_LBC_TIBSE |
+ TX3927_PCIC_LBC_TMFBSE | TX3927_PCIC_LBC_MSDSE;
+#endif
+ /* LB->PCI mappings */
+ tx3927_pcicptr->iomas = ~(mips_pci_io_size - 1);
+ tx3927_pcicptr->ilbioma = mips_pci_io_base;
+ tx3927_pcicptr->ipbioma = mips_pci_io_pciaddr;
+ tx3927_pcicptr->mmas = ~(mips_pci_mem_size - 1);
+ tx3927_pcicptr->ilbmma = mips_pci_mem_base;
+ tx3927_pcicptr->ipbmma = mips_pci_mem_base;
+ /* PCI->LB mappings */
+ tx3927_pcicptr->iobas = 0xffffffff;
+ tx3927_pcicptr->ioba = 0;
+ tx3927_pcicptr->tlbioma = 0;
+ tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
+ tx3927_pcicptr->mba = 0;
+ tx3927_pcicptr->tlbmma = 0;
+ /* Enable Direct mapping Address Space Decoder */
+ tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
+
+ /* Clear All Local Bus Status */
+ tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
+ /* Enable All Local Bus Interrupts */
+ tx3927_pcicptr->lbim = TX3927_PCIC_LBIM_ALL;
+ /* Clear All PCI Status Error */
+ tx3927_pcicptr->pcistat = TX3927_PCIC_PCISTATIM_ALL;
+ /* Enable All PCI Status Error Interrupts */
+ tx3927_pcicptr->pcistatim = TX3927_PCIC_PCISTATIM_ALL;
+
+ /* PCIC Int => IRC IRQ10 */
+ tx3927_pcicptr->il = TX3927_IR_PCI;
+ /* Target Control (per errata) */
+ tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
+
+ /* Enable Bus Arbiter */
+ tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
+
+ tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
+ PCI_COMMAND_MEMORY |
+ PCI_COMMAND_IO |
+ PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+ }
+#endif /* CONFIG_PCI */
+
+ /* PIO */
+ /* PIO[15:12] connected to LEDs */
+ __raw_writel(0x0000f000, &tx3927_pioptr->dir);
+ __raw_writel(0, &tx3927_pioptr->maskcpu);
+ __raw_writel(0, &tx3927_pioptr->maskext);
+ txx9_gpio_init(TX3927_PIO_REG, 0, 16);
+ gpio_request(11, "dipsw1");
+ gpio_request(10, "dipsw2");
+ {
+ unsigned int conf;
+
+ conf = read_c0_conf();
+ if (!(conf & TX39_CONF_ICE))
+ printk("TX3927 I-Cache disabled.\n");
+ if (!(conf & TX39_CONF_DCE))
+ printk("TX3927 D-Cache disabled.\n");
+ else if (!(conf & TX39_CONF_WBON))
+ printk("TX3927 D-Cache WriteThrough.\n");
+ else if (!(conf & TX39_CONF_CWFON))
+ printk("TX3927 D-Cache WriteBack.\n");
+ else
+ printk("TX3927 D-Cache WriteBack (CWF) .\n");
+ }
+}
+
+/* This trick makes rtc-ds1742 driver usable as is. */
+unsigned long __swizzle_addr_b(unsigned long port)
+{
+ if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
+ return port;
+ port = (port & 0xffff0000) | (port & 0x7fff << 1);
+#ifdef __BIG_ENDIAN
+ return port;
+#else
+ return port | 1;
+#endif
+}
+EXPORT_SYMBOL(__swizzle_addr_b);
+
+static int __init jmr3927_rtc_init(void)
+{
+ static struct resource __initdata res = {
+ .start = JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
+ .end = JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev;
+ dev = platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(jmr3927_rtc_init);
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+ struct resource res = {
+ .start = base,
+ .end = base + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("txx9wdt", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init jmr3927_wdt_init(void)
+{
+ return txx9_wdt_init(TX3927_TMR_REG(2));
+}
+device_initcall(jmr3927_wdt_init);
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ if (!strcmp(id, "imbus_clk"))
+ return (struct clk *)JMR3927_IMCLK;
+ return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/txx9/rbtx4927/Makefile b/arch/mips/txx9/rbtx4927/Makefile
new file mode 100644
index 000000000000..f3e1f597b4f1
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/Makefile
@@ -0,0 +1,3 @@
+obj-y += prom.o setup.o irq.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c
new file mode 100644
index 000000000000..936e50e91d95
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/irq.c
@@ -0,0 +1,214 @@
+/*
+ * Toshiba RBTX4927 specific interrupt handlers
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/*
+IRQ Device
+00 RBTX4927-ISA/00
+01 RBTX4927-ISA/01 PS2/Keyboard
+02 RBTX4927-ISA/02 Cascade RBTX4927-ISA (irqs 8-15)
+03 RBTX4927-ISA/03
+04 RBTX4927-ISA/04
+05 RBTX4927-ISA/05
+06 RBTX4927-ISA/06
+07 RBTX4927-ISA/07
+08 RBTX4927-ISA/08
+09 RBTX4927-ISA/09
+10 RBTX4927-ISA/10
+11 RBTX4927-ISA/11
+12 RBTX4927-ISA/12 PS2/Mouse (not supported at this time)
+13 RBTX4927-ISA/13
+14 RBTX4927-ISA/14 IDE
+15 RBTX4927-ISA/15
+
+16 TX4927-CP0/00 Software 0
+17 TX4927-CP0/01 Software 1
+18 TX4927-CP0/02 Cascade TX4927-CP0
+19 TX4927-CP0/03 Multiplexed -- do not use
+20 TX4927-CP0/04 Multiplexed -- do not use
+21 TX4927-CP0/05 Multiplexed -- do not use
+22 TX4927-CP0/06 Multiplexed -- do not use
+23 TX4927-CP0/07 CPU TIMER
+
+24 TX4927-PIC/00
+25 TX4927-PIC/01
+26 TX4927-PIC/02
+27 TX4927-PIC/03 Cascade RBTX4927-IOC
+28 TX4927-PIC/04
+29 TX4927-PIC/05 RBTX4927 RTL-8019AS ethernet
+30 TX4927-PIC/06
+31 TX4927-PIC/07
+32 TX4927-PIC/08 TX4927 SerialIO Channel 0
+33 TX4927-PIC/09 TX4927 SerialIO Channel 1
+34 TX4927-PIC/10
+35 TX4927-PIC/11
+36 TX4927-PIC/12
+37 TX4927-PIC/13
+38 TX4927-PIC/14
+39 TX4927-PIC/15
+40 TX4927-PIC/16 TX4927 PCI PCI-C
+41 TX4927-PIC/17
+42 TX4927-PIC/18
+43 TX4927-PIC/19
+44 TX4927-PIC/20
+45 TX4927-PIC/21
+46 TX4927-PIC/22 TX4927 PCI PCI-ERR
+47 TX4927-PIC/23 TX4927 PCI PCI-PMA (not used)
+48 TX4927-PIC/24
+49 TX4927-PIC/25
+50 TX4927-PIC/26
+51 TX4927-PIC/27
+52 TX4927-PIC/28
+53 TX4927-PIC/29
+54 TX4927-PIC/30
+55 TX4927-PIC/31
+
+56 RBTX4927-IOC/00 FPCIB0 PCI-D PJ4/A PJ5/B SB/C PJ6/D PJ7/A (SouthBridge/NotUsed) [RTL-8139=PJ4]
+57 RBTX4927-IOC/01 FPCIB0 PCI-C PJ4/D PJ5/A SB/B PJ6/C PJ7/D (SouthBridge/NotUsed) [RTL-8139=PJ5]
+58 RBTX4927-IOC/02 FPCIB0 PCI-B PJ4/C PJ5/D SB/A PJ6/B PJ7/C (SouthBridge/IDE/pin=1,INTR) [RTL-8139=NotSupported]
+59 RBTX4927-IOC/03 FPCIB0 PCI-A PJ4/B PJ5/C SB/D PJ6/A PJ7/B (SouthBridge/USB/pin=4) [RTL-8139=PJ6]
+60 RBTX4927-IOC/04
+61 RBTX4927-IOC/05
+62 RBTX4927-IOC/06
+63 RBTX4927-IOC/07
+
+NOTES:
+SouthBridge/INTR is mapped to SouthBridge/A=PCI-B/#58
+SouthBridge/ISA/pin=0 no pci irq used by this device
+SouthBridge/IDE/pin=1 no pci irq used by this device, using INTR via ISA IRQ14
+SouthBridge/USB/pin=4 using pci irq SouthBridge/D=PCI-A=#59
+SouthBridge/PMC/pin=0 no pci irq used by this device
+SuperIO/PS2/Keyboard, using INTR via ISA IRQ1
+SuperIO/PS2/Mouse, using INTR via ISA IRQ12 (mouse not currently supported)
+JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthBridge, JP4, JP5, JP6
+*/
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <asm/i8259.h>
+#endif
+#include <asm/txx9/rbtx4927.h>
+
+#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG 0
+#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_END 7
+
+#define TOSHIBA_RBTX4927_IRQ_IOC_BEG ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG) /* 56 */
+#define TOSHIBA_RBTX4927_IRQ_IOC_END ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_END) /* 63 */
+
+#define TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC TX4927_IRQ_NEST_EXT_ON_PIC
+#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC (TOSHIBA_RBTX4927_IRQ_IOC_BEG+2)
+
+extern int tx4927_using_backplane;
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
+
+#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
+static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
+ .name = TOSHIBA_RBTX4927_IOC_NAME,
+ .ack = toshiba_rbtx4927_irq_ioc_disable,
+ .mask = toshiba_rbtx4927_irq_ioc_disable,
+ .mask_ack = toshiba_rbtx4927_irq_ioc_disable,
+ .unmask = toshiba_rbtx4927_irq_ioc_enable,
+};
+#define TOSHIBA_RBTX4927_IOC_INTR_ENAB (void __iomem *)0xbc002000UL
+#define TOSHIBA_RBTX4927_IOC_INTR_STAT (void __iomem *)0xbc002006UL
+
+int toshiba_rbtx4927_irq_nested(int sw_irq)
+{
+ u8 level3;
+
+ level3 = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
+ if (level3) {
+ sw_irq = TOSHIBA_RBTX4927_IRQ_IOC_BEG + fls(level3) - 1;
+#ifdef CONFIG_TOSHIBA_FPCIB0
+ if (sw_irq == TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC &&
+ tx4927_using_backplane) {
+ int irq = i8259_irq();
+ if (irq >= 0)
+ sw_irq = irq;
+ }
+#endif
+ }
+ return (sw_irq);
+}
+
+static struct irqaction toshiba_rbtx4927_irq_ioc_action = {
+ .handler = no_action,
+ .flags = IRQF_SHARED,
+ .mask = CPU_MASK_NONE,
+ .name = TOSHIBA_RBTX4927_IOC_NAME
+};
+
+static void __init toshiba_rbtx4927_irq_ioc_init(void)
+{
+ int i;
+
+ for (i = TOSHIBA_RBTX4927_IRQ_IOC_BEG;
+ i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++)
+ set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
+ handle_level_irq);
+
+ setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC,
+ &toshiba_rbtx4927_irq_ioc_action);
+}
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
+{
+ unsigned char v;
+
+ v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+ v |= (1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
+ writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+}
+
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
+{
+ unsigned char v;
+
+ v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+ v &= ~(1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
+ writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+ mmiowb();
+}
+
+void __init arch_init_irq(void)
+{
+ extern void tx4927_irq_init(void);
+
+ tx4927_irq_init();
+ toshiba_rbtx4927_irq_ioc_init();
+#ifdef CONFIG_TOSHIBA_FPCIB0
+ if (tx4927_using_backplane)
+ init_i8259_irqs();
+#endif
+ /* Onboard 10M Ether: High Active */
+ set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
+}
diff --git a/arch/mips/txx9/rbtx4927/prom.c b/arch/mips/txx9/rbtx4927/prom.c
new file mode 100644
index 000000000000..0020bbee838b
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/prom.c
@@ -0,0 +1,91 @@
+/*
+ * rbtx4927 specific prom routines
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@mvista.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/string.h>
+#include <asm/bootinfo.h>
+#include <asm/cpu.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9/tx4927.h>
+
+void __init prom_init_cmdline(void)
+{
+ int argc = (int) fw_arg0;
+ char **argv = (char **) fw_arg1;
+ int i; /* Always ignore the "-c" at argv[0] */
+
+ /* ignore all built-in args if any f/w args given */
+ if (argc > 1) {
+ *arcs_cmdline = '\0';
+ }
+
+ for (i = 1; i < argc; i++) {
+ if (i != 1) {
+ strcat(arcs_cmdline, " ");
+ }
+ strcat(arcs_cmdline, argv[i]);
+ }
+}
+
+void __init prom_init(void)
+{
+ extern int tx4927_get_mem_size(void);
+ extern char* toshiba_name;
+ int msize;
+
+ prom_init_cmdline();
+
+ if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) {
+ mips_machtype = MACH_TOSHIBA_RBTX4927;
+ toshiba_name = "TX4927";
+ } else {
+ mips_machtype = MACH_TOSHIBA_RBTX4937;
+ toshiba_name = "TX4937";
+ }
+
+ msize = tx4927_get_mem_size();
+ add_memory_region(0, msize << 20, BOOT_MEM_RAM);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+ return "Toshiba RBTX4927/RBTX4937";
+}
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
new file mode 100644
index 000000000000..df1b6e99b666
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -0,0 +1,703 @@
+/*
+ * Toshiba rbtx4927 specific setup
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 1996, 97, 2001, 04 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: RidgeRun, Inc.
+ * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ * Author: Michael Pruznick, michael_pruznick@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@mvista.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/txx9tmr.h>
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <asm/txx9/smsc_fdc37m81x.h>
+#endif
+#include <asm/txx9/rbtx4927.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+
+/* These functions are used for rebooting or halting the machine*/
+extern void toshiba_rbtx4927_restart(char *command);
+extern void toshiba_rbtx4927_halt(void);
+extern void toshiba_rbtx4927_power_off(void);
+
+int tx4927_using_backplane = 0;
+
+extern void toshiba_rbtx4927_irq_setup(void);
+
+char *prom_getcmdline(void);
+
+#ifdef CONFIG_PCI
+#undef TX4927_SUPPORT_COMMAND_IO
+#undef TX4927_SUPPORT_PCI_66
+int tx4927_cpu_clock = 100000000; /* 100MHz */
+unsigned long mips_pci_io_base;
+unsigned long mips_pci_io_size;
+unsigned long mips_pci_mem_base;
+unsigned long mips_pci_mem_size;
+/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+unsigned long mips_pci_io_pciaddr = 0;
+unsigned long mips_memory_upper;
+static int tx4927_ccfg_toeon = 1;
+static int tx4927_pcic_trdyto = 0; /* default: disabled */
+unsigned long tx4927_ce_base[8];
+int tx4927_pci66 = 0; /* 0:auto */
+#endif
+
+char *toshiba_name = "";
+
+#ifdef CONFIG_PCI
+extern struct pci_controller tx4927_controller;
+
+static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
+ int top_bus, int busnr, int devfn)
+{
+ static struct pci_dev dev;
+ static struct pci_bus bus;
+
+ dev.sysdata = (void *)hose;
+ dev.devfn = devfn;
+ bus.number = busnr;
+ bus.ops = hose->pci_ops;
+ bus.parent = NULL;
+ dev.bus = &bus;
+
+ return &dev;
+}
+
+#define EARLY_PCI_OP(rw, size, type) \
+static int early_##rw##_config_##size(struct pci_controller *hose, \
+ int top_bus, int bus, int devfn, int offset, type value) \
+{ \
+ return pci_##rw##_config_##size( \
+ fake_pci_dev(hose, top_bus, bus, devfn), \
+ offset, value); \
+}
+
+EARLY_PCI_OP(read, byte, u8 *)
+EARLY_PCI_OP(read, dword, u32 *)
+EARLY_PCI_OP(write, byte, u8)
+EARLY_PCI_OP(write, dword, u32)
+
+static int __init tx4927_pcibios_init(void)
+{
+ unsigned int id;
+ u32 pci_devfn;
+ int devfn_start = 0;
+ int devfn_stop = 0xff;
+ int busno = 0; /* One bus on the Toshiba */
+ struct pci_controller *hose = &tx4927_controller;
+
+ for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
+ early_read_config_dword(hose, busno, busno, pci_devfn,
+ PCI_VENDOR_ID, &id);
+
+ if (id == 0xffffffff) {
+ continue;
+ }
+
+ if (id == 0x94601055) {
+ u8 v08_64;
+ u32 v32_b0;
+ u8 v08_e1;
+
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0x64, &v08_64);
+ early_read_config_dword(hose, busno, busno,
+ pci_devfn, 0xb0, &v32_b0);
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0xe1, &v08_e1);
+
+ /* serial irq control */
+ v08_64 = 0xd0;
+
+ /* serial irq pin */
+ v32_b0 |= 0x00010000;
+
+ /* ide irq on isa14 */
+ v08_e1 &= 0xf0;
+ v08_e1 |= 0x0d;
+
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0x64, v08_64);
+ early_write_config_dword(hose, busno, busno,
+ pci_devfn, 0xb0, v32_b0);
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0xe1, v08_e1);
+ }
+
+ if (id == 0x91301055) {
+ u8 v08_04;
+ u8 v08_09;
+ u8 v08_41;
+ u8 v08_43;
+ u8 v08_5c;
+
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0x04, &v08_04);
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0x09, &v08_09);
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0x41, &v08_41);
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0x43, &v08_43);
+ early_read_config_byte(hose, busno, busno,
+ pci_devfn, 0x5c, &v08_5c);
+
+ /* enable ide master/io */
+ v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
+
+ /* enable ide native mode */
+ v08_09 |= 0x05;
+
+ /* enable primary ide */
+ v08_41 |= 0x80;
+
+ /* enable secondary ide */
+ v08_43 |= 0x80;
+
+ /*
+ * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+ *
+ * This line of code is intended to provide the user with a work
+ * around solution to the anomalies cited in SMSC's anomaly sheet
+ * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
+ *
+ * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+ */
+ v08_5c |= 0x01;
+
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0x5c, v08_5c);
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0x04, v08_04);
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0x09, v08_09);
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0x41, v08_41);
+ early_write_config_byte(hose, busno, busno,
+ pci_devfn, 0x43, v08_43);
+ }
+
+ }
+
+ register_pci_controller(&tx4927_controller);
+ return 0;
+}
+
+arch_initcall(tx4927_pcibios_init);
+
+extern struct resource pci_io_resource;
+extern struct resource pci_mem_resource;
+
+void __init tx4927_pci_setup(void)
+{
+ static int called = 0;
+ extern unsigned int tx4927_get_mem_size(void);
+
+ mips_memory_upper = tx4927_get_mem_size() << 20;
+ mips_memory_upper += KSEG0;
+ mips_pci_io_base = TX4927_PCIIO;
+ mips_pci_io_size = TX4927_PCIIO_SIZE;
+ mips_pci_mem_base = TX4927_PCIMEM;
+ mips_pci_mem_size = TX4927_PCIMEM_SIZE;
+
+ if (!called) {
+ printk
+ ("%s PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
+ toshiba_name,
+ (unsigned short) (tx4927_pcicptr->pciid >> 16),
+ (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
+ (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
+ (!(tx4927_ccfgptr->
+ ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
+ "Internal");
+ called = 1;
+ }
+ printk("%s PCIC --%s PCICLK:", toshiba_name,
+ (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
+ if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
+ int pciclk = 0;
+ if (mips_machtype == MACH_TOSHIBA_RBTX4937)
+ switch ((unsigned long) tx4927_ccfgptr->
+ ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
+ case TX4937_CCFG_PCIDIVMODE_4:
+ pciclk = tx4927_cpu_clock / 4;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_4_5:
+ pciclk = tx4927_cpu_clock * 2 / 9;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_5:
+ pciclk = tx4927_cpu_clock / 5;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_5_5:
+ pciclk = tx4927_cpu_clock * 2 / 11;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_8:
+ pciclk = tx4927_cpu_clock / 8;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_9:
+ pciclk = tx4927_cpu_clock / 9;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_10:
+ pciclk = tx4927_cpu_clock / 10;
+ break;
+ case TX4937_CCFG_PCIDIVMODE_11:
+ pciclk = tx4927_cpu_clock / 11;
+ break;
+ }
+
+ else
+ switch ((unsigned long) tx4927_ccfgptr->
+ ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
+ case TX4927_CCFG_PCIDIVMODE_2_5:
+ pciclk = tx4927_cpu_clock * 2 / 5;
+ break;
+ case TX4927_CCFG_PCIDIVMODE_3:
+ pciclk = tx4927_cpu_clock / 3;
+ break;
+ case TX4927_CCFG_PCIDIVMODE_5:
+ pciclk = tx4927_cpu_clock / 5;
+ break;
+ case TX4927_CCFG_PCIDIVMODE_6:
+ pciclk = tx4927_cpu_clock / 6;
+ break;
+ }
+
+ printk("Internal(%dMHz)", pciclk / 1000000);
+ } else
+ printk("External");
+ printk("\n");
+
+ /* GB->PCI mappings */
+ tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
+ tx4927_pcicptr->g2piogbase = mips_pci_io_base |
+#ifdef __BIG_ENDIAN
+ TX4927_PCIC_G2PIOGBASE_ECHG
+#else
+ TX4927_PCIC_G2PIOGBASE_BSDIS
+#endif
+ ;
+
+ tx4927_pcicptr->g2piopbase = 0;
+
+ tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
+ tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
+#ifdef __BIG_ENDIAN
+ TX4927_PCIC_G2PMnGBASE_ECHG
+#else
+ TX4927_PCIC_G2PMnGBASE_BSDIS
+#endif
+ ;
+ tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
+
+ tx4927_pcicptr->g2pmmask[1] = 0;
+ tx4927_pcicptr->g2pmgbase[1] = 0;
+ tx4927_pcicptr->g2pmpbase[1] = 0;
+ tx4927_pcicptr->g2pmmask[2] = 0;
+ tx4927_pcicptr->g2pmgbase[2] = 0;
+ tx4927_pcicptr->g2pmpbase[2] = 0;
+
+
+ /* PCI->GB mappings (I/O 256B) */
+ tx4927_pcicptr->p2giopbase = 0; /* 256B */
+
+ /* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
+ tx4927_pcicptr->p2gm0plbase = 0;
+ tx4927_pcicptr->p2gm0pubase = 0;
+ tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
+#ifdef __BIG_ENDIAN
+ TX4927_PCIC_P2GMnGBASE_TECHG
+#else
+ TX4927_PCIC_P2GMnGBASE_TBSDIS
+#endif
+ ;
+
+ /* PCI->GB mappings (MEM 16MB) -not used */
+ tx4927_pcicptr->p2gm1plbase = 0xffffffff;
+ tx4927_pcicptr->p2gm1pubase = 0xffffffff;
+ tx4927_pcicptr->p2gmgbase[1] = 0;
+
+ /* PCI->GB mappings (MEM 1MB) -not used */
+ tx4927_pcicptr->p2gm2pbase = 0xffffffff;
+ tx4927_pcicptr->p2gmgbase[2] = 0;
+
+
+ /* Enable Initiator Memory 0 Space, I/O Space, Config */
+ tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
+ tx4927_pcicptr->pciccfg |=
+ TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
+ TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
+
+
+ /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
+ tx4927_pcicptr->pcicfg1 = 0;
+
+ if (tx4927_pcic_trdyto >= 0) {
+ tx4927_pcicptr->g2ptocnt &= ~0xff;
+ tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
+ }
+
+ /* Clear All Local Bus Status */
+ tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
+ /* Enable All Local Bus Interrupts */
+ tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
+ /* Clear All Initiator Status */
+ tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
+ /* Enable All Initiator Interrupts */
+ tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
+ /* Clear All PCI Status Error */
+ tx4927_pcicptr->pcistatus =
+ (tx4927_pcicptr->pcistatus & 0x0000ffff) |
+ (TX4927_PCIC_PCISTATUS_ALL << 16);
+ /* Enable All PCI Status Error Interrupts */
+ tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
+
+ /* PCIC Int => IRC IRQ16 */
+ tx4927_pcicptr->pcicfg2 =
+ (tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
+
+ if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
+ /* XXX */
+ } else {
+ /* Reset Bus Arbiter */
+ tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
+ /* Enable Bus Arbiter */
+ tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
+ }
+
+ tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
+ PCI_COMMAND_MEMORY |
+ PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+}
+#endif /* CONFIG_PCI */
+
+static void __noreturn wait_forever(void)
+{
+ while (1)
+ if (cpu_wait)
+ (*cpu_wait)();
+}
+
+void toshiba_rbtx4927_restart(char *command)
+{
+ printk(KERN_NOTICE "System Rebooting...\n");
+
+ /* enable the s/w reset register */
+ writeb(RBTX4927_SW_RESET_ENABLE_SET, RBTX4927_SW_RESET_ENABLE);
+
+ /* wait for enable to be seen */
+ while ((readb(RBTX4927_SW_RESET_ENABLE) &
+ RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
+
+ /* do a s/w reset */
+ writeb(RBTX4927_SW_RESET_DO_SET, RBTX4927_SW_RESET_DO);
+
+ /* do something passive while waiting for reset */
+ local_irq_disable();
+ wait_forever();
+ /* no return */
+}
+
+void toshiba_rbtx4927_halt(void)
+{
+ printk(KERN_NOTICE "System Halted\n");
+ local_irq_disable();
+ wait_forever();
+ /* no return */
+}
+
+void toshiba_rbtx4927_power_off(void)
+{
+ toshiba_rbtx4927_halt();
+ /* no return */
+}
+
+void __init plat_mem_setup(void)
+{
+ int i;
+ u32 cp0_config;
+ char *argptr;
+
+ printk("CPU is %s\n", toshiba_name);
+
+ /* f/w leaves this on at startup */
+ clear_c0_status(ST0_ERL);
+
+ /* enable caches -- HCP5 does this, pmon does not */
+ cp0_config = read_c0_config();
+ cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
+ write_c0_config(cp0_config);
+
+ set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
+
+ ioport_resource.end = 0xffffffff;
+ iomem_resource.end = 0xffffffff;
+
+ _machine_restart = toshiba_rbtx4927_restart;
+ _machine_halt = toshiba_rbtx4927_halt;
+ pm_power_off = toshiba_rbtx4927_power_off;
+
+ for (i = 0; i < TX4927_NR_TMR; i++)
+ txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
+
+#ifdef CONFIG_PCI
+
+ /* PCIC */
+ /*
+ * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
+ *
+ * For TX4927:
+ * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1).
+ * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
+ * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
+ * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
+ * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
+ * i.e. S9[3]: ON (83MHz), OFF (100MHz)
+ *
+ * For TX4937:
+ * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1)
+ * PCIDIVMODE[10] is 0.
+ * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8)
+ * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4)
+ * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9)
+ * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5)
+ * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10)
+ * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5)
+ *
+ */
+ if (mips_machtype == MACH_TOSHIBA_RBTX4937)
+ switch ((unsigned long)tx4927_ccfgptr->
+ ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
+ case TX4937_CCFG_PCIDIVMODE_8:
+ case TX4937_CCFG_PCIDIVMODE_4:
+ tx4927_cpu_clock = 266666666; /* 266MHz */
+ break;
+ case TX4937_CCFG_PCIDIVMODE_9:
+ case TX4937_CCFG_PCIDIVMODE_4_5:
+ tx4927_cpu_clock = 300000000; /* 300MHz */
+ break;
+ default:
+ tx4927_cpu_clock = 333333333; /* 333MHz */
+ }
+ else
+ switch ((unsigned long)tx4927_ccfgptr->
+ ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
+ case TX4927_CCFG_PCIDIVMODE_2_5:
+ case TX4927_CCFG_PCIDIVMODE_5:
+ tx4927_cpu_clock = 166666666; /* 166MHz */
+ break;
+ default:
+ tx4927_cpu_clock = 200000000; /* 200MHz */
+ }
+
+ /* CCFG */
+ /* do reset on watchdog */
+ tx4927_ccfgptr->ccfg |= TX4927_CCFG_WR;
+ /* enable Timeout BusError */
+ if (tx4927_ccfg_toeon)
+ tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
+
+ tx4927_pci_setup();
+ if (tx4927_using_backplane == 1)
+ printk("backplane board IS installed\n");
+ else
+ printk("No Backplane \n");
+
+ /* this is on ISA bus behind PCI bus, so need PCI up first */
+#ifdef CONFIG_TOSHIBA_FPCIB0
+ if (tx4927_using_backplane) {
+ smsc_fdc37m81x_init(0x3f0);
+ smsc_fdc37m81x_config_beg();
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
+ SMSC_FDC37M81X_KBD);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
+ 1);
+ smsc_fdc37m81x_config_end();
+ }
+#endif
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_SERIAL_TXX9
+ {
+ extern int early_serial_txx9_setup(struct uart_port *port);
+ struct uart_port req;
+ for(i = 0; i < 2; i++) {
+ memset(&req, 0, sizeof(req));
+ req.line = i;
+ req.iotype = UPIO_MEM;
+ req.membase = (char *)(0xff1ff300 + i * 0x100);
+ req.mapbase = 0xff1ff300 + i * 0x100;
+ req.irq = TX4927_IRQ_PIC_BEG + 8 + i;
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ req.uartclk = 50000000;
+ early_serial_txx9_setup(&req);
+ }
+ }
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "console=") == NULL) {
+ strcat(argptr, " console=ttyS0,38400");
+ }
+#endif
+#endif
+
+#ifdef CONFIG_ROOT_NFS
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "root=") == NULL) {
+ strcat(argptr, " root=/dev/nfs rw");
+ }
+#endif
+
+#ifdef CONFIG_IP_PNP
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "ip=") == NULL) {
+ strcat(argptr, " ip=any");
+ }
+#endif
+}
+
+void __init plat_time_init(void)
+{
+ mips_hpt_frequency = tx4927_cpu_clock / 2;
+ if (tx4927_ccfgptr->ccfg & TX4927_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + 17,
+ 50000000);
+}
+
+static int __init toshiba_rbtx4927_rtc_init(void)
+{
+ static struct resource __initdata res = {
+ .start = 0x1c010000,
+ .end = 0x1c010000 + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(toshiba_rbtx4927_rtc_init);
+
+static int __init rbtx4927_ne_init(void)
+{
+ static struct resource __initdata res[] = {
+ {
+ .start = RBTX4927_RTL_8019_BASE,
+ .end = RBTX4927_RTL_8019_BASE + 0x20 - 1,
+ .flags = IORESOURCE_IO,
+ }, {
+ .start = RBTX4927_RTL_8019_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("ne", -1,
+ res, ARRAY_SIZE(res));
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(rbtx4927_ne_init);
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+ struct resource res = {
+ .start = base,
+ .end = base + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("txx9wdt", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4927_wdt_init(void)
+{
+ return txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL);
+}
+device_initcall(rbtx4927_wdt_init);
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ if (!strcmp(id, "imbus_clk"))
+ return (struct clk *)50000000;
+ return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/txx9/rbtx4938/Makefile b/arch/mips/txx9/rbtx4938/Makefile
new file mode 100644
index 000000000000..9dcc52ae5b9d
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/Makefile
@@ -0,0 +1,3 @@
+obj-y += prom.o setup.o irq.o spi_eeprom.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/rbtx4938/irq.c b/arch/mips/txx9/rbtx4938/irq.c
new file mode 100644
index 000000000000..f4984820251a
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/irq.c
@@ -0,0 +1,159 @@
+/*
+ * Toshiba RBTX4938 specific interrupt handlers
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+/*
+IRQ Device
+
+16 TX4938-CP0/00 Software 0
+17 TX4938-CP0/01 Software 1
+18 TX4938-CP0/02 Cascade TX4938-CP0
+19 TX4938-CP0/03 Multiplexed -- do not use
+20 TX4938-CP0/04 Multiplexed -- do not use
+21 TX4938-CP0/05 Multiplexed -- do not use
+22 TX4938-CP0/06 Multiplexed -- do not use
+23 TX4938-CP0/07 CPU TIMER
+
+24 TX4938-PIC/00
+25 TX4938-PIC/01
+26 TX4938-PIC/02 Cascade RBTX4938-IOC
+27 TX4938-PIC/03 RBTX4938 RTL-8019AS Ethernet
+28 TX4938-PIC/04
+29 TX4938-PIC/05 TX4938 ETH1
+30 TX4938-PIC/06 TX4938 ETH0
+31 TX4938-PIC/07
+32 TX4938-PIC/08 TX4938 SIO 0
+33 TX4938-PIC/09 TX4938 SIO 1
+34 TX4938-PIC/10 TX4938 DMA0
+35 TX4938-PIC/11 TX4938 DMA1
+36 TX4938-PIC/12 TX4938 DMA2
+37 TX4938-PIC/13 TX4938 DMA3
+38 TX4938-PIC/14
+39 TX4938-PIC/15
+40 TX4938-PIC/16 TX4938 PCIC
+41 TX4938-PIC/17 TX4938 TMR0
+42 TX4938-PIC/18 TX4938 TMR1
+43 TX4938-PIC/19 TX4938 TMR2
+44 TX4938-PIC/20
+45 TX4938-PIC/21
+46 TX4938-PIC/22 TX4938 PCIERR
+47 TX4938-PIC/23
+48 TX4938-PIC/24
+49 TX4938-PIC/25
+50 TX4938-PIC/26
+51 TX4938-PIC/27
+52 TX4938-PIC/28
+53 TX4938-PIC/29
+54 TX4938-PIC/30
+55 TX4938-PIC/31 TX4938 SPI
+
+56 RBTX4938-IOC/00 PCI-D
+57 RBTX4938-IOC/01 PCI-C
+58 RBTX4938-IOC/02 PCI-B
+59 RBTX4938-IOC/03 PCI-A
+60 RBTX4938-IOC/04 RTC
+61 RBTX4938-IOC/05 ATA
+62 RBTX4938-IOC/06 MODEM
+63 RBTX4938-IOC/07 SWINT
+*/
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/txx9/rbtx4938.h>
+
+static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq);
+static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq);
+
+#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC"
+static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
+ .name = TOSHIBA_RBTX4938_IOC_NAME,
+ .ack = toshiba_rbtx4938_irq_ioc_disable,
+ .mask = toshiba_rbtx4938_irq_ioc_disable,
+ .mask_ack = toshiba_rbtx4938_irq_ioc_disable,
+ .unmask = toshiba_rbtx4938_irq_ioc_enable,
+};
+
+int
+toshiba_rbtx4938_irq_nested(int sw_irq)
+{
+ u8 level3;
+
+ level3 = readb(rbtx4938_imstat_addr);
+ if (level3)
+ /* must use fls so onboard ATA has priority */
+ sw_irq = TOSHIBA_RBTX4938_IRQ_IOC_BEG + fls(level3) - 1;
+
+ return sw_irq;
+}
+
+static struct irqaction toshiba_rbtx4938_irq_ioc_action = {
+ .handler = no_action,
+ .flags = 0,
+ .mask = CPU_MASK_NONE,
+ .name = TOSHIBA_RBTX4938_IOC_NAME,
+};
+
+/**********************************************************************************/
+/* Functions for ioc */
+/**********************************************************************************/
+static void __init
+toshiba_rbtx4938_irq_ioc_init(void)
+{
+ int i;
+
+ for (i = TOSHIBA_RBTX4938_IRQ_IOC_BEG;
+ i <= TOSHIBA_RBTX4938_IRQ_IOC_END; i++)
+ set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type,
+ handle_level_irq);
+
+ setup_irq(RBTX4938_IRQ_IOCINT,
+ &toshiba_rbtx4938_irq_ioc_action);
+}
+
+static void
+toshiba_rbtx4938_irq_ioc_enable(unsigned int irq)
+{
+ unsigned char v;
+
+ v = readb(rbtx4938_imask_addr);
+ v |= (1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
+ writeb(v, rbtx4938_imask_addr);
+ mmiowb();
+}
+
+static void
+toshiba_rbtx4938_irq_ioc_disable(unsigned int irq)
+{
+ unsigned char v;
+
+ v = readb(rbtx4938_imask_addr);
+ v &= ~(1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
+ writeb(v, rbtx4938_imask_addr);
+ mmiowb();
+}
+
+void __init arch_init_irq(void)
+{
+ extern void tx4938_irq_init(void);
+
+ /* Now, interrupt control disabled, */
+ /* all IRC interrupts are masked, */
+ /* all IRC interrupt mode are Low Active. */
+
+ /* mask all IOC interrupts */
+ writeb(0, rbtx4938_imask_addr);
+
+ /* clear SoftInt interrupts */
+ writeb(0, rbtx4938_softint_addr);
+ tx4938_irq_init();
+ toshiba_rbtx4938_irq_ioc_init();
+ /* Onboard 10M Ether: High Active */
+ set_irq_type(RBTX4938_IRQ_ETHER, IRQF_TRIGGER_HIGH);
+}
diff --git a/arch/mips/txx9/rbtx4938/prom.c b/arch/mips/txx9/rbtx4938/prom.c
new file mode 100644
index 000000000000..134fcc2dc7d2
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/prom.c
@@ -0,0 +1,72 @@
+/*
+ * rbtx4938 specific prom routines
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/tx4938.h>
+
+void __init prom_init_cmdline(void)
+{
+ int argc = (int) fw_arg0;
+ char **argv = (char **) fw_arg1;
+ int i;
+
+ /* ignore all built-in args if any f/w args given */
+ if (argc > 1) {
+ *arcs_cmdline = '\0';
+ }
+
+ for (i = 1; i < argc; i++) {
+ if (i != 1) {
+ strcat(arcs_cmdline, " ");
+ }
+ strcat(arcs_cmdline, argv[i]);
+ }
+}
+
+void __init prom_init(void)
+{
+ extern int tx4938_get_mem_size(void);
+ int msize;
+#ifndef CONFIG_TX4938_NAND_BOOT
+ prom_init_cmdline();
+#endif
+
+ msize = tx4938_get_mem_size();
+ add_memory_region(0, msize << 20, BOOT_MEM_RAM);
+
+ return;
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
+{
+ return;
+}
+
+const char *get_system_type(void)
+{
+ return "Toshiba RBTX4938";
+}
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
new file mode 100644
index 000000000000..bbd572c9675b
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -0,0 +1,1122 @@
+/*
+ * Setup pointers to hardware-dependent routines.
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/console.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/txx9tmr.h>
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/rbtx4938.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+#include <linux/spi/spi.h>
+#include <asm/txx9/spi.h>
+#include <asm/txx9pio.h>
+
+extern char * __init prom_getcmdline(void);
+static inline void tx4938_report_pcic_status1(struct tx4938_pcic_reg *pcicptr);
+
+/* These functions are used for rebooting or halting the machine*/
+extern void rbtx4938_machine_restart(char *command);
+extern void rbtx4938_machine_halt(void);
+extern void rbtx4938_machine_power_off(void);
+
+/* clocks */
+unsigned int txx9_master_clock;
+unsigned int txx9_cpu_clock;
+unsigned int txx9_gbus_clock;
+
+unsigned long rbtx4938_ce_base[8];
+unsigned long rbtx4938_ce_size[8];
+int txboard_pci66_mode;
+static int tx4938_pcic_trdyto; /* default: disabled */
+static int tx4938_pcic_retryto; /* default: disabled */
+static int tx4938_ccfg_toeon = 1;
+
+struct tx4938_pcic_reg *pcicptrs[4] = {
+ tx4938_pcicptr /* default setting for TX4938 */
+};
+
+static struct {
+ unsigned long base;
+ unsigned long size;
+} phys_regions[16] __initdata;
+static int num_phys_regions __initdata;
+
+#define PHYS_REGION_MINSIZE 0x10000
+
+void rbtx4938_machine_halt(void)
+{
+ printk(KERN_NOTICE "System Halted\n");
+ local_irq_disable();
+
+ while (1)
+ __asm__(".set\tmips3\n\t"
+ "wait\n\t"
+ ".set\tmips0");
+}
+
+void rbtx4938_machine_power_off(void)
+{
+ rbtx4938_machine_halt();
+ /* no return */
+}
+
+void rbtx4938_machine_restart(char *command)
+{
+ local_irq_disable();
+
+ printk("Rebooting...");
+ writeb(1, rbtx4938_softresetlock_addr);
+ writeb(1, rbtx4938_sfvol_addr);
+ writeb(1, rbtx4938_softreset_addr);
+ while(1)
+ ;
+}
+
+void __init
+txboard_add_phys_region(unsigned long base, unsigned long size)
+{
+ if (num_phys_regions >= ARRAY_SIZE(phys_regions)) {
+ printk("phys_region overflow\n");
+ return;
+ }
+ phys_regions[num_phys_regions].base = base;
+ phys_regions[num_phys_regions].size = size;
+ num_phys_regions++;
+}
+unsigned long __init
+txboard_find_free_phys_region(unsigned long begin, unsigned long end,
+ unsigned long size)
+{
+ unsigned long base;
+ int i;
+
+ for (base = begin / size * size; base < end; base += size) {
+ for (i = 0; i < num_phys_regions; i++) {
+ if (phys_regions[i].size &&
+ base <= phys_regions[i].base + (phys_regions[i].size - 1) &&
+ base + (size - 1) >= phys_regions[i].base)
+ break;
+ }
+ if (i == num_phys_regions)
+ return base;
+ }
+ return 0;
+}
+unsigned long __init
+txboard_find_free_phys_region_shrink(unsigned long begin, unsigned long end,
+ unsigned long *size)
+{
+ unsigned long sz, base;
+ for (sz = *size; sz >= PHYS_REGION_MINSIZE; sz /= 2) {
+ base = txboard_find_free_phys_region(begin, end, sz);
+ if (base) {
+ *size = sz;
+ return base;
+ }
+ }
+ return 0;
+}
+unsigned long __init
+txboard_request_phys_region_range(unsigned long begin, unsigned long end,
+ unsigned long size)
+{
+ unsigned long base;
+ base = txboard_find_free_phys_region(begin, end, size);
+ if (base)
+ txboard_add_phys_region(base, size);
+ return base;
+}
+unsigned long __init
+txboard_request_phys_region(unsigned long size)
+{
+ unsigned long base;
+ unsigned long begin = 0, end = 0x20000000; /* search low 512MB */
+ base = txboard_find_free_phys_region(begin, end, size);
+ if (base)
+ txboard_add_phys_region(base, size);
+ return base;
+}
+unsigned long __init
+txboard_request_phys_region_shrink(unsigned long *size)
+{
+ unsigned long base;
+ unsigned long begin = 0, end = 0x20000000; /* search low 512MB */
+ base = txboard_find_free_phys_region_shrink(begin, end, size);
+ if (base)
+ txboard_add_phys_region(base, *size);
+ return base;
+}
+
+#ifdef CONFIG_PCI
+void __init
+tx4938_pcic_setup(struct tx4938_pcic_reg *pcicptr,
+ struct pci_controller *channel,
+ unsigned long pci_io_base,
+ int extarb)
+{
+ int i;
+
+ /* Disable All Initiator Space */
+ pcicptr->pciccfg &= ~(TX4938_PCIC_PCICCFG_G2PMEN(0)|
+ TX4938_PCIC_PCICCFG_G2PMEN(1)|
+ TX4938_PCIC_PCICCFG_G2PMEN(2)|
+ TX4938_PCIC_PCICCFG_G2PIOEN);
+
+ /* GB->PCI mappings */
+ pcicptr->g2piomask = (channel->io_resource->end - channel->io_resource->start) >> 4;
+ pcicptr->g2piogbase = pci_io_base |
+#ifdef __BIG_ENDIAN
+ TX4938_PCIC_G2PIOGBASE_ECHG
+#else
+ TX4938_PCIC_G2PIOGBASE_BSDIS
+#endif
+ ;
+ pcicptr->g2piopbase = 0;
+ for (i = 0; i < 3; i++) {
+ pcicptr->g2pmmask[i] = 0;
+ pcicptr->g2pmgbase[i] = 0;
+ pcicptr->g2pmpbase[i] = 0;
+ }
+ if (channel->mem_resource->end) {
+ pcicptr->g2pmmask[0] = (channel->mem_resource->end - channel->mem_resource->start) >> 4;
+ pcicptr->g2pmgbase[0] = channel->mem_resource->start |
+#ifdef __BIG_ENDIAN
+ TX4938_PCIC_G2PMnGBASE_ECHG
+#else
+ TX4938_PCIC_G2PMnGBASE_BSDIS
+#endif
+ ;
+ pcicptr->g2pmpbase[0] = channel->mem_resource->start;
+ }
+ /* PCI->GB mappings (I/O 256B) */
+ pcicptr->p2giopbase = 0; /* 256B */
+ pcicptr->p2giogbase = 0;
+ /* PCI->GB mappings (MEM 512MB (64MB on R1.x)) */
+ pcicptr->p2gm0plbase = 0;
+ pcicptr->p2gm0pubase = 0;
+ pcicptr->p2gmgbase[0] = 0 |
+ TX4938_PCIC_P2GMnGBASE_TMEMEN |
+#ifdef __BIG_ENDIAN
+ TX4938_PCIC_P2GMnGBASE_TECHG
+#else
+ TX4938_PCIC_P2GMnGBASE_TBSDIS
+#endif
+ ;
+ /* PCI->GB mappings (MEM 16MB) */
+ pcicptr->p2gm1plbase = 0xffffffff;
+ pcicptr->p2gm1pubase = 0xffffffff;
+ pcicptr->p2gmgbase[1] = 0;
+ /* PCI->GB mappings (MEM 1MB) */
+ pcicptr->p2gm2pbase = 0xffffffff; /* 1MB */
+ pcicptr->p2gmgbase[2] = 0;
+
+ pcicptr->pciccfg &= TX4938_PCIC_PCICCFG_GBWC_MASK;
+ /* Enable Initiator Memory Space */
+ if (channel->mem_resource->end)
+ pcicptr->pciccfg |= TX4938_PCIC_PCICCFG_G2PMEN(0);
+ /* Enable Initiator I/O Space */
+ if (channel->io_resource->end)
+ pcicptr->pciccfg |= TX4938_PCIC_PCICCFG_G2PIOEN;
+ /* Enable Initiator Config */
+ pcicptr->pciccfg |=
+ TX4938_PCIC_PCICCFG_ICAEN |
+ TX4938_PCIC_PCICCFG_TCAR;
+
+ /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
+ pcicptr->pcicfg1 = 0;
+
+ pcicptr->g2ptocnt &= ~0xffff;
+
+ if (tx4938_pcic_trdyto >= 0) {
+ pcicptr->g2ptocnt &= ~0xff;
+ pcicptr->g2ptocnt |= (tx4938_pcic_trdyto & 0xff);
+ }
+
+ if (tx4938_pcic_retryto >= 0) {
+ pcicptr->g2ptocnt &= ~0xff00;
+ pcicptr->g2ptocnt |= ((tx4938_pcic_retryto<<8) & 0xff00);
+ }
+
+ /* Clear All Local Bus Status */
+ pcicptr->pcicstatus = TX4938_PCIC_PCICSTATUS_ALL;
+ /* Enable All Local Bus Interrupts */
+ pcicptr->pcicmask = TX4938_PCIC_PCICSTATUS_ALL;
+ /* Clear All Initiator Status */
+ pcicptr->g2pstatus = TX4938_PCIC_G2PSTATUS_ALL;
+ /* Enable All Initiator Interrupts */
+ pcicptr->g2pmask = TX4938_PCIC_G2PSTATUS_ALL;
+ /* Clear All PCI Status Error */
+ pcicptr->pcistatus =
+ (pcicptr->pcistatus & 0x0000ffff) |
+ (TX4938_PCIC_PCISTATUS_ALL << 16);
+ /* Enable All PCI Status Error Interrupts */
+ pcicptr->pcimask = TX4938_PCIC_PCISTATUS_ALL;
+
+ if (!extarb) {
+ /* Reset Bus Arbiter */
+ pcicptr->pbacfg = TX4938_PCIC_PBACFG_RPBA;
+ pcicptr->pbabm = 0;
+ /* Enable Bus Arbiter */
+ pcicptr->pbacfg = TX4938_PCIC_PBACFG_PBAEN;
+ }
+
+ /* PCIC Int => IRC IRQ16 */
+ pcicptr->pcicfg2 =
+ (pcicptr->pcicfg2 & 0xffffff00) | TX4938_IR_PCIC;
+
+ pcicptr->pcistatus = PCI_COMMAND_MASTER |
+ PCI_COMMAND_MEMORY |
+ PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+}
+
+int __init
+tx4938_report_pciclk(void)
+{
+ unsigned long pcode = TX4938_REV_PCODE();
+ int pciclk = 0;
+ printk("TX%lx PCIC --%s PCICLK:",
+ pcode,
+ (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI66) ? " PCI66" : "");
+ if (tx4938_ccfgptr->pcfg & TX4938_PCFG_PCICLKEN_ALL) {
+
+ switch ((unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIDIVMODE_MASK) {
+ case TX4938_CCFG_PCIDIVMODE_4:
+ pciclk = txx9_cpu_clock / 4; break;
+ case TX4938_CCFG_PCIDIVMODE_4_5:
+ pciclk = txx9_cpu_clock * 2 / 9; break;
+ case TX4938_CCFG_PCIDIVMODE_5:
+ pciclk = txx9_cpu_clock / 5; break;
+ case TX4938_CCFG_PCIDIVMODE_5_5:
+ pciclk = txx9_cpu_clock * 2 / 11; break;
+ case TX4938_CCFG_PCIDIVMODE_8:
+ pciclk = txx9_cpu_clock / 8; break;
+ case TX4938_CCFG_PCIDIVMODE_9:
+ pciclk = txx9_cpu_clock / 9; break;
+ case TX4938_CCFG_PCIDIVMODE_10:
+ pciclk = txx9_cpu_clock / 10; break;
+ case TX4938_CCFG_PCIDIVMODE_11:
+ pciclk = txx9_cpu_clock / 11; break;
+ }
+ printk("Internal(%dMHz)", pciclk / 1000000);
+ } else {
+ printk("External");
+ pciclk = -1;
+ }
+ printk("\n");
+ return pciclk;
+}
+
+void __init set_tx4938_pcicptr(int ch, struct tx4938_pcic_reg *pcicptr)
+{
+ pcicptrs[ch] = pcicptr;
+}
+
+struct tx4938_pcic_reg *get_tx4938_pcicptr(int ch)
+{
+ return pcicptrs[ch];
+}
+
+static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
+ int top_bus, int busnr, int devfn)
+{
+ static struct pci_dev dev;
+ static struct pci_bus bus;
+
+ dev.sysdata = bus.sysdata = hose;
+ dev.devfn = devfn;
+ bus.number = busnr;
+ bus.ops = hose->pci_ops;
+ bus.parent = NULL;
+ dev.bus = &bus;
+
+ return &dev;
+}
+
+#define EARLY_PCI_OP(rw, size, type) \
+static int early_##rw##_config_##size(struct pci_controller *hose, \
+ int top_bus, int bus, int devfn, int offset, type value) \
+{ \
+ return pci_##rw##_config_##size( \
+ fake_pci_dev(hose, top_bus, bus, devfn), \
+ offset, value); \
+}
+
+EARLY_PCI_OP(read, word, u16 *)
+
+int txboard_pci66_check(struct pci_controller *hose, int top_bus, int current_bus)
+{
+ u32 pci_devfn;
+ unsigned short vid;
+ int devfn_start = 0;
+ int devfn_stop = 0xff;
+ int cap66 = -1;
+ u16 stat;
+
+ printk("PCI: Checking 66MHz capabilities...\n");
+
+ for (pci_devfn=devfn_start; pci_devfn<devfn_stop; pci_devfn++) {
+ if (early_read_config_word(hose, top_bus, current_bus,
+ pci_devfn, PCI_VENDOR_ID,
+ &vid) != PCIBIOS_SUCCESSFUL)
+ continue;
+
+ if (vid == 0xffff) continue;
+
+ /* check 66MHz capability */
+ if (cap66 < 0)
+ cap66 = 1;
+ if (cap66) {
+ early_read_config_word(hose, top_bus, current_bus, pci_devfn,
+ PCI_STATUS, &stat);
+ if (!(stat & PCI_STATUS_66MHZ)) {
+ printk(KERN_DEBUG "PCI: %02x:%02x not 66MHz capable.\n",
+ current_bus, pci_devfn);
+ cap66 = 0;
+ break;
+ }
+ }
+ }
+ return cap66 > 0;
+}
+
+int __init
+tx4938_pciclk66_setup(void)
+{
+ int pciclk;
+
+ /* Assert M66EN */
+ tx4938_ccfgptr->ccfg |= TX4938_CCFG_PCI66;
+ /* Double PCICLK (if possible) */
+ if (tx4938_ccfgptr->pcfg & TX4938_PCFG_PCICLKEN_ALL) {
+ unsigned int pcidivmode =
+ tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIDIVMODE_MASK;
+ switch (pcidivmode) {
+ case TX4938_CCFG_PCIDIVMODE_8:
+ case TX4938_CCFG_PCIDIVMODE_4:
+ pcidivmode = TX4938_CCFG_PCIDIVMODE_4;
+ pciclk = txx9_cpu_clock / 4;
+ break;
+ case TX4938_CCFG_PCIDIVMODE_9:
+ case TX4938_CCFG_PCIDIVMODE_4_5:
+ pcidivmode = TX4938_CCFG_PCIDIVMODE_4_5;
+ pciclk = txx9_cpu_clock * 2 / 9;
+ break;
+ case TX4938_CCFG_PCIDIVMODE_10:
+ case TX4938_CCFG_PCIDIVMODE_5:
+ pcidivmode = TX4938_CCFG_PCIDIVMODE_5;
+ pciclk = txx9_cpu_clock / 5;
+ break;
+ case TX4938_CCFG_PCIDIVMODE_11:
+ case TX4938_CCFG_PCIDIVMODE_5_5:
+ default:
+ pcidivmode = TX4938_CCFG_PCIDIVMODE_5_5;
+ pciclk = txx9_cpu_clock * 2 / 11;
+ break;
+ }
+ tx4938_ccfgptr->ccfg =
+ (tx4938_ccfgptr->ccfg & ~TX4938_CCFG_PCIDIVMODE_MASK)
+ | pcidivmode;
+ printk(KERN_DEBUG "PCICLK: ccfg:%08lx\n",
+ (unsigned long)tx4938_ccfgptr->ccfg);
+ } else {
+ pciclk = -1;
+ }
+ return pciclk;
+}
+
+extern struct pci_controller tx4938_pci_controller[];
+static int __init tx4938_pcibios_init(void)
+{
+ unsigned long mem_base[2];
+ unsigned long mem_size[2] = {TX4938_PCIMEM_SIZE_0, TX4938_PCIMEM_SIZE_1}; /* MAX 128M,64K */
+ unsigned long io_base[2];
+ unsigned long io_size[2] = {TX4938_PCIIO_SIZE_0, TX4938_PCIIO_SIZE_1}; /* MAX 16M,64K */
+ /* TX4938 PCIC1: 64K MEM/IO is enough for ETH0,ETH1 */
+ int extarb = !(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIXARB);
+
+ PCIBIOS_MIN_IO = 0x00001000UL;
+
+ mem_base[0] = txboard_request_phys_region_shrink(&mem_size[0]);
+ io_base[0] = txboard_request_phys_region_shrink(&io_size[0]);
+
+ printk("TX4938 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
+ (unsigned short)(tx4938_pcicptr->pciid >> 16),
+ (unsigned short)(tx4938_pcicptr->pciid & 0xffff),
+ (unsigned short)(tx4938_pcicptr->pciccrev & 0xff),
+ extarb ? "External" : "Internal");
+
+ /* setup PCI area */
+ tx4938_pci_controller[0].io_resource->start = io_base[0];
+ tx4938_pci_controller[0].io_resource->end = (io_base[0] + io_size[0]) - 1;
+ tx4938_pci_controller[0].mem_resource->start = mem_base[0];
+ tx4938_pci_controller[0].mem_resource->end = mem_base[0] + mem_size[0] - 1;
+
+ set_tx4938_pcicptr(0, tx4938_pcicptr);
+
+ register_pci_controller(&tx4938_pci_controller[0]);
+
+ if (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI66) {
+ printk("TX4938_CCFG_PCI66 already configured\n");
+ txboard_pci66_mode = -1; /* already configured */
+ }
+
+ /* Reset PCI Bus */
+ writeb(0, rbtx4938_pcireset_addr);
+ /* Reset PCIC */
+ tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIRST;
+ if (txboard_pci66_mode > 0)
+ tx4938_pciclk66_setup();
+ mdelay(10);
+ /* clear PCIC reset */
+ tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIRST;
+ writeb(1, rbtx4938_pcireset_addr);
+ mmiowb();
+ tx4938_report_pcic_status1(tx4938_pcicptr);
+
+ tx4938_report_pciclk();
+ tx4938_pcic_setup(tx4938_pcicptr, &tx4938_pci_controller[0], io_base[0], extarb);
+ if (txboard_pci66_mode == 0 &&
+ txboard_pci66_check(&tx4938_pci_controller[0], 0, 0)) {
+ /* Reset PCI Bus */
+ writeb(0, rbtx4938_pcireset_addr);
+ /* Reset PCIC */
+ tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIRST;
+ tx4938_pciclk66_setup();
+ mdelay(10);
+ /* clear PCIC reset */
+ tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIRST;
+ writeb(1, rbtx4938_pcireset_addr);
+ mmiowb();
+ /* Reinitialize PCIC */
+ tx4938_report_pciclk();
+ tx4938_pcic_setup(tx4938_pcicptr, &tx4938_pci_controller[0], io_base[0], extarb);
+ }
+
+ mem_base[1] = txboard_request_phys_region_shrink(&mem_size[1]);
+ io_base[1] = txboard_request_phys_region_shrink(&io_size[1]);
+ /* Reset PCIC1 */
+ tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIC1RST;
+ /* PCI1DMD==0 => PCI1CLK==GBUSCLK/2 => PCI66 */
+ if (!(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1DMD))
+ tx4938_ccfgptr->ccfg |= TX4938_CCFG_PCI1_66;
+ else
+ tx4938_ccfgptr->ccfg &= ~TX4938_CCFG_PCI1_66;
+ mdelay(10);
+ /* clear PCIC1 reset */
+ tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
+ tx4938_report_pcic_status1(tx4938_pcic1ptr);
+
+ printk("TX4938 PCIC1 -- DID:%04x VID:%04x RID:%02x",
+ (unsigned short)(tx4938_pcic1ptr->pciid >> 16),
+ (unsigned short)(tx4938_pcic1ptr->pciid & 0xffff),
+ (unsigned short)(tx4938_pcic1ptr->pciccrev & 0xff));
+ printk("%s PCICLK:%dMHz\n",
+ (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1_66) ? " PCI66" : "",
+ txx9_gbus_clock /
+ ((tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1DMD) ? 4 : 2) /
+ 1000000);
+
+ /* assumption: CPHYSADDR(mips_io_port_base) == io_base[0] */
+ tx4938_pci_controller[1].io_resource->start =
+ io_base[1] - io_base[0];
+ tx4938_pci_controller[1].io_resource->end =
+ io_base[1] - io_base[0] + io_size[1] - 1;
+ tx4938_pci_controller[1].mem_resource->start = mem_base[1];
+ tx4938_pci_controller[1].mem_resource->end =
+ mem_base[1] + mem_size[1] - 1;
+ set_tx4938_pcicptr(1, tx4938_pcic1ptr);
+
+ register_pci_controller(&tx4938_pci_controller[1]);
+
+ tx4938_pcic_setup(tx4938_pcic1ptr, &tx4938_pci_controller[1], io_base[1], extarb);
+
+ /* map ioport 0 to PCI I/O space address 0 */
+ set_io_port_base(KSEG1 + io_base[0]);
+
+ return 0;
+}
+
+arch_initcall(tx4938_pcibios_init);
+
+#endif /* CONFIG_PCI */
+
+/* SPI support */
+
+/* chip select for SPI devices */
+#define SEEPROM1_CS 7 /* PIO7 */
+#define SEEPROM2_CS 0 /* IOC */
+#define SEEPROM3_CS 1 /* IOC */
+#define SRTC_CS 2 /* IOC */
+
+#ifdef CONFIG_PCI
+static int __init rbtx4938_ethaddr_init(void)
+{
+ unsigned char dat[17];
+ unsigned char sum;
+ int i;
+
+ /* 0-3: "MAC\0", 4-9:eth0, 10-15:eth1, 16:sum */
+ if (spi_eeprom_read(SEEPROM1_CS, 0, dat, sizeof(dat))) {
+ printk(KERN_ERR "seeprom: read error.\n");
+ return -ENODEV;
+ } else {
+ if (strcmp(dat, "MAC") != 0)
+ printk(KERN_WARNING "seeprom: bad signature.\n");
+ for (i = 0, sum = 0; i < sizeof(dat); i++)
+ sum += dat[i];
+ if (sum)
+ printk(KERN_WARNING "seeprom: bad checksum.\n");
+ }
+ for (i = 0; i < 2; i++) {
+ unsigned int id =
+ TXX9_IRQ_BASE + (i ? TX4938_IR_ETH1 : TX4938_IR_ETH0);
+ struct platform_device *pdev;
+ if (!(tx4938_ccfgptr->pcfg &
+ (i ? TX4938_PCFG_ETH1_SEL : TX4938_PCFG_ETH0_SEL)))
+ continue;
+ pdev = platform_device_alloc("tc35815-mac", id);
+ if (!pdev ||
+ platform_device_add_data(pdev, &dat[4 + 6 * i], 6) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+ }
+ return 0;
+}
+device_initcall(rbtx4938_ethaddr_init);
+#endif /* CONFIG_PCI */
+
+static void __init rbtx4938_spi_setup(void)
+{
+ /* set SPI_SEL */
+ tx4938_ccfgptr->pcfg |= TX4938_PCFG_SPI_SEL;
+}
+
+static struct resource rbtx4938_fpga_resource;
+
+static char pcode_str[8];
+static struct resource tx4938_reg_resource = {
+ .start = TX4938_REG_BASE,
+ .end = TX4938_REG_BASE + TX4938_REG_SIZE,
+ .name = pcode_str,
+ .flags = IORESOURCE_MEM
+};
+
+void __init tx4938_board_setup(void)
+{
+ int i;
+ unsigned long divmode;
+ int cpuclk = 0;
+ unsigned long pcode = TX4938_REV_PCODE();
+
+ ioport_resource.start = 0x1000;
+ ioport_resource.end = 0xffffffff;
+ iomem_resource.start = 0x1000;
+ iomem_resource.end = 0xffffffff; /* expand to 4GB */
+
+ sprintf(pcode_str, "TX%lx", pcode);
+ /* SDRAMC,EBUSC are configured by PROM */
+ for (i = 0; i < 8; i++) {
+ if (!(tx4938_ebuscptr->cr[i] & 0x8))
+ continue; /* disabled */
+ rbtx4938_ce_base[i] = (unsigned long)TX4938_EBUSC_BA(i);
+ txboard_add_phys_region(rbtx4938_ce_base[i], TX4938_EBUSC_SIZE(i));
+ }
+
+ /* clocks */
+ if (txx9_master_clock) {
+ /* calculate gbus_clock and cpu_clock_freq from master_clock */
+ divmode = (unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_8:
+ case TX4938_CCFG_DIVMODE_10:
+ case TX4938_CCFG_DIVMODE_12:
+ case TX4938_CCFG_DIVMODE_16:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_gbus_clock = txx9_master_clock * 4; break;
+ default:
+ txx9_gbus_clock = txx9_master_clock;
+ }
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_2:
+ case TX4938_CCFG_DIVMODE_8:
+ cpuclk = txx9_gbus_clock * 2; break;
+ case TX4938_CCFG_DIVMODE_2_5:
+ case TX4938_CCFG_DIVMODE_10:
+ cpuclk = txx9_gbus_clock * 5 / 2; break;
+ case TX4938_CCFG_DIVMODE_3:
+ case TX4938_CCFG_DIVMODE_12:
+ cpuclk = txx9_gbus_clock * 3; break;
+ case TX4938_CCFG_DIVMODE_4:
+ case TX4938_CCFG_DIVMODE_16:
+ cpuclk = txx9_gbus_clock * 4; break;
+ case TX4938_CCFG_DIVMODE_4_5:
+ case TX4938_CCFG_DIVMODE_18:
+ cpuclk = txx9_gbus_clock * 9 / 2; break;
+ }
+ txx9_cpu_clock = cpuclk;
+ } else {
+ if (txx9_cpu_clock == 0) {
+ txx9_cpu_clock = 300000000; /* 300MHz */
+ }
+ /* calculate gbus_clock and master_clock from cpu_clock_freq */
+ cpuclk = txx9_cpu_clock;
+ divmode = (unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_2:
+ case TX4938_CCFG_DIVMODE_8:
+ txx9_gbus_clock = cpuclk / 2; break;
+ case TX4938_CCFG_DIVMODE_2_5:
+ case TX4938_CCFG_DIVMODE_10:
+ txx9_gbus_clock = cpuclk * 2 / 5; break;
+ case TX4938_CCFG_DIVMODE_3:
+ case TX4938_CCFG_DIVMODE_12:
+ txx9_gbus_clock = cpuclk / 3; break;
+ case TX4938_CCFG_DIVMODE_4:
+ case TX4938_CCFG_DIVMODE_16:
+ txx9_gbus_clock = cpuclk / 4; break;
+ case TX4938_CCFG_DIVMODE_4_5:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_gbus_clock = cpuclk * 2 / 9; break;
+ }
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_8:
+ case TX4938_CCFG_DIVMODE_10:
+ case TX4938_CCFG_DIVMODE_12:
+ case TX4938_CCFG_DIVMODE_16:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_master_clock = txx9_gbus_clock / 4; break;
+ default:
+ txx9_master_clock = txx9_gbus_clock;
+ }
+ }
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ /* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
+ tx4938_ccfgptr->ccfg |= TX4938_CCFG_WDRST | TX4938_CCFG_BEOW;
+ /* do reset on watchdog */
+ tx4938_ccfgptr->ccfg |= TX4938_CCFG_WR;
+ /* clear PCIC1 reset */
+ if (tx4938_ccfgptr->clkctr & TX4938_CLKCTR_PCIC1RST)
+ tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
+
+ /* enable Timeout BusError */
+ if (tx4938_ccfg_toeon)
+ tx4938_ccfgptr->ccfg |= TX4938_CCFG_TOE;
+
+ /* DMA selection */
+ tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_DMASEL_ALL;
+
+ /* Use external clock for external arbiter */
+ if (!(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIXARB))
+ tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_PCICLKEN_ALL;
+
+ printk("%s -- %dMHz(M%dMHz) CRIR:%08lx CCFG:%Lx PCFG:%Lx\n",
+ pcode_str,
+ cpuclk / 1000000, txx9_master_clock / 1000000,
+ (unsigned long)tx4938_ccfgptr->crir,
+ tx4938_ccfgptr->ccfg,
+ tx4938_ccfgptr->pcfg);
+
+ printk("%s SDRAMC --", pcode_str);
+ for (i = 0; i < 4; i++) {
+ unsigned long long cr = tx4938_sdramcptr->cr[i];
+ unsigned long ram_base, ram_size;
+ if (!((unsigned long)cr & 0x00000400))
+ continue; /* disabled */
+ ram_base = (unsigned long)(cr >> 49) << 21;
+ ram_size = ((unsigned long)(cr >> 33) + 1) << 21;
+ if (ram_base >= 0x20000000)
+ continue; /* high memory (ignore) */
+ printk(" CR%d:%016Lx", i, cr);
+ txboard_add_phys_region(ram_base, ram_size);
+ }
+ printk(" TR:%09Lx\n", tx4938_sdramcptr->tr);
+
+ /* SRAM */
+ if (pcode == 0x4938 && tx4938_sramcptr->cr & 1) {
+ unsigned int size = 0x800;
+ unsigned long base =
+ (tx4938_sramcptr->cr >> (39-11)) & ~(size - 1);
+ txboard_add_phys_region(base, size);
+ }
+
+ /* TMR */
+ for (i = 0; i < TX4938_NR_TMR; i++)
+ txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
+
+ /* enable DMA */
+ for (i = 0; i < 2; i++)
+ ____raw_writeq(TX4938_DMA_MCR_MSTEN,
+ (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
+
+ /* PIO */
+ __raw_writel(0, &tx4938_pioptr->maskcpu);
+ __raw_writel(0, &tx4938_pioptr->maskext);
+
+ /* TX4938 internal registers */
+ if (request_resource(&iomem_resource, &tx4938_reg_resource))
+ printk("request resource for internal registers failed\n");
+}
+
+#ifdef CONFIG_PCI
+static inline void tx4938_report_pcic_status1(struct tx4938_pcic_reg *pcicptr)
+{
+ unsigned short pcistatus = (unsigned short)(pcicptr->pcistatus >> 16);
+ unsigned long g2pstatus = pcicptr->g2pstatus;
+ unsigned long pcicstatus = pcicptr->pcicstatus;
+ static struct {
+ unsigned long flag;
+ const char *str;
+ } pcistat_tbl[] = {
+ { PCI_STATUS_DETECTED_PARITY, "DetectedParityError" },
+ { PCI_STATUS_SIG_SYSTEM_ERROR, "SignaledSystemError" },
+ { PCI_STATUS_REC_MASTER_ABORT, "ReceivedMasterAbort" },
+ { PCI_STATUS_REC_TARGET_ABORT, "ReceivedTargetAbort" },
+ { PCI_STATUS_SIG_TARGET_ABORT, "SignaledTargetAbort" },
+ { PCI_STATUS_PARITY, "MasterParityError" },
+ }, g2pstat_tbl[] = {
+ { TX4938_PCIC_G2PSTATUS_TTOE, "TIOE" },
+ { TX4938_PCIC_G2PSTATUS_RTOE, "RTOE" },
+ }, pcicstat_tbl[] = {
+ { TX4938_PCIC_PCICSTATUS_PME, "PME" },
+ { TX4938_PCIC_PCICSTATUS_TLB, "TLB" },
+ { TX4938_PCIC_PCICSTATUS_NIB, "NIB" },
+ { TX4938_PCIC_PCICSTATUS_ZIB, "ZIB" },
+ { TX4938_PCIC_PCICSTATUS_PERR, "PERR" },
+ { TX4938_PCIC_PCICSTATUS_SERR, "SERR" },
+ { TX4938_PCIC_PCICSTATUS_GBE, "GBE" },
+ { TX4938_PCIC_PCICSTATUS_IWB, "IWB" },
+ };
+ int i;
+
+ printk("pcistat:%04x(", pcistatus);
+ for (i = 0; i < ARRAY_SIZE(pcistat_tbl); i++)
+ if (pcistatus & pcistat_tbl[i].flag)
+ printk("%s ", pcistat_tbl[i].str);
+ printk("), g2pstatus:%08lx(", g2pstatus);
+ for (i = 0; i < ARRAY_SIZE(g2pstat_tbl); i++)
+ if (g2pstatus & g2pstat_tbl[i].flag)
+ printk("%s ", g2pstat_tbl[i].str);
+ printk("), pcicstatus:%08lx(", pcicstatus);
+ for (i = 0; i < ARRAY_SIZE(pcicstat_tbl); i++)
+ if (pcicstatus & pcicstat_tbl[i].flag)
+ printk("%s ", pcicstat_tbl[i].str);
+ printk(")\n");
+}
+
+void tx4938_report_pcic_status(void)
+{
+ int i;
+ struct tx4938_pcic_reg *pcicptr;
+ for (i = 0; (pcicptr = get_tx4938_pcicptr(i)) != NULL; i++)
+ tx4938_report_pcic_status1(pcicptr);
+}
+
+#endif /* CONFIG_PCI */
+
+void __init plat_time_init(void)
+{
+ mips_hpt_frequency = txx9_cpu_clock / 2;
+ if (tx4938_ccfgptr->ccfg & TX4938_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_TMR(0),
+ txx9_gbus_clock / 2);
+}
+
+void __init plat_mem_setup(void)
+{
+ unsigned long long pcfg;
+ char *argptr;
+
+ iomem_resource.end = 0xffffffff; /* 4GB */
+
+ if (txx9_master_clock == 0)
+ txx9_master_clock = 25000000; /* 25MHz */
+ tx4938_board_setup();
+#ifndef CONFIG_PCI
+ set_io_port_base(RBTX4938_ETHER_BASE);
+#endif
+
+#ifdef CONFIG_SERIAL_TXX9
+ {
+ extern int early_serial_txx9_setup(struct uart_port *port);
+ int i;
+ struct uart_port req;
+ for(i = 0; i < 2; i++) {
+ memset(&req, 0, sizeof(req));
+ req.line = i;
+ req.iotype = UPIO_MEM;
+ req.membase = (char *)(0xff1ff300 + i * 0x100);
+ req.mapbase = 0xff1ff300 + i * 0x100;
+ req.irq = RBTX4938_IRQ_IRC_SIO(i);
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ req.uartclk = 50000000;
+ early_serial_txx9_setup(&req);
+ }
+ }
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "console=") == NULL) {
+ strcat(argptr, " console=ttyS0,38400");
+ }
+#endif
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61
+ printk("PIOSEL: disabling both ata and nand selection\n");
+ local_irq_disable();
+ tx4938_ccfgptr->pcfg &= ~(TX4938_PCFG_NDF_SEL | TX4938_PCFG_ATA_SEL);
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND
+ printk("PIOSEL: enabling nand selection\n");
+ tx4938_ccfgptr->pcfg |= TX4938_PCFG_NDF_SEL;
+ tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_ATA_SEL;
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_ATA
+ printk("PIOSEL: enabling ata selection\n");
+ tx4938_ccfgptr->pcfg |= TX4938_PCFG_ATA_SEL;
+ tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_NDF_SEL;
+#endif
+
+#ifdef CONFIG_IP_PNP
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "ip=") == NULL) {
+ strcat(argptr, " ip=any");
+ }
+#endif
+
+
+#ifdef CONFIG_FB
+ {
+ conswitchp = &dummy_con;
+ }
+#endif
+
+ rbtx4938_spi_setup();
+ pcfg = tx4938_ccfgptr->pcfg; /* updated */
+ /* fixup piosel */
+ if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
+ TX4938_PCFG_ATA_SEL)
+ writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x04,
+ rbtx4938_piosel_addr);
+ else if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
+ TX4938_PCFG_NDF_SEL)
+ writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x08,
+ rbtx4938_piosel_addr);
+ else
+ writeb(readb(rbtx4938_piosel_addr) & ~(0x08 | 0x04),
+ rbtx4938_piosel_addr);
+
+ rbtx4938_fpga_resource.name = "FPGA Registers";
+ rbtx4938_fpga_resource.start = CPHYSADDR(RBTX4938_FPGA_REG_ADDR);
+ rbtx4938_fpga_resource.end = CPHYSADDR(RBTX4938_FPGA_REG_ADDR) + 0xffff;
+ rbtx4938_fpga_resource.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ if (request_resource(&iomem_resource, &rbtx4938_fpga_resource))
+ printk("request resource for fpga failed\n");
+
+ _machine_restart = rbtx4938_machine_restart;
+ _machine_halt = rbtx4938_machine_halt;
+ pm_power_off = rbtx4938_machine_power_off;
+
+ writeb(0xff, rbtx4938_led_addr);
+ printk(KERN_INFO "RBTX4938 --- FPGA(Rev %02x) DIPSW:%02x,%02x\n",
+ readb(rbtx4938_fpga_rev_addr),
+ readb(rbtx4938_dipsw_addr), readb(rbtx4938_bdipsw_addr));
+}
+
+static int __init rbtx4938_ne_init(void)
+{
+ struct resource res[] = {
+ {
+ .start = RBTX4938_RTL_8019_BASE,
+ .end = RBTX4938_RTL_8019_BASE + 0x20 - 1,
+ .flags = IORESOURCE_IO,
+ }, {
+ .start = RBTX4938_RTL_8019_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("ne", -1,
+ res, ARRAY_SIZE(res));
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(rbtx4938_ne_init);
+
+/* GPIO support */
+
+int gpio_to_irq(unsigned gpio)
+{
+ return -EINVAL;
+}
+
+int irq_to_gpio(unsigned irq)
+{
+ return -EINVAL;
+}
+
+static DEFINE_SPINLOCK(rbtx4938_spi_gpio_lock);
+
+static void rbtx4938_spi_gpio_set(struct gpio_chip *chip, unsigned int offset,
+ int value)
+{
+ u8 val;
+ unsigned long flags;
+ spin_lock_irqsave(&rbtx4938_spi_gpio_lock, flags);
+ val = readb(rbtx4938_spics_addr);
+ if (value)
+ val |= 1 << offset;
+ else
+ val &= ~(1 << offset);
+ writeb(val, rbtx4938_spics_addr);
+ mmiowb();
+ spin_unlock_irqrestore(&rbtx4938_spi_gpio_lock, flags);
+}
+
+static int rbtx4938_spi_gpio_dir_out(struct gpio_chip *chip,
+ unsigned int offset, int value)
+{
+ rbtx4938_spi_gpio_set(chip, offset, value);
+ return 0;
+}
+
+static struct gpio_chip rbtx4938_spi_gpio_chip = {
+ .set = rbtx4938_spi_gpio_set,
+ .direction_output = rbtx4938_spi_gpio_dir_out,
+ .label = "RBTX4938-SPICS",
+ .base = 16,
+ .ngpio = 3,
+};
+
+/* SPI support */
+
+static void __init txx9_spi_init(unsigned long base, int irq)
+{
+ struct resource res[] = {
+ {
+ .start = base,
+ .end = base + 0x20 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ platform_device_register_simple("spi_txx9", 0,
+ res, ARRAY_SIZE(res));
+}
+
+static int __init rbtx4938_spi_init(void)
+{
+ struct spi_board_info srtc_info = {
+ .modalias = "rtc-rs5c348",
+ .max_speed_hz = 1000000, /* 1.0Mbps @ Vdd 2.0V */
+ .bus_num = 0,
+ .chip_select = 16 + SRTC_CS,
+ /* Mode 1 (High-Active, Shift-Then-Sample), High Avtive CS */
+ .mode = SPI_MODE_1 | SPI_CS_HIGH,
+ };
+ spi_register_board_info(&srtc_info, 1);
+ spi_eeprom_register(SEEPROM1_CS);
+ spi_eeprom_register(16 + SEEPROM2_CS);
+ spi_eeprom_register(16 + SEEPROM3_CS);
+ gpio_request(16 + SRTC_CS, "rtc-rs5c348");
+ gpio_direction_output(16 + SRTC_CS, 0);
+ gpio_request(SEEPROM1_CS, "seeprom1");
+ gpio_direction_output(SEEPROM1_CS, 1);
+ gpio_request(16 + SEEPROM2_CS, "seeprom2");
+ gpio_direction_output(16 + SEEPROM2_CS, 1);
+ gpio_request(16 + SEEPROM3_CS, "seeprom3");
+ gpio_direction_output(16 + SEEPROM3_CS, 1);
+ txx9_spi_init(TX4938_SPI_REG & 0xfffffffffULL, RBTX4938_IRQ_IRC_SPI);
+ return 0;
+}
+
+static int __init rbtx4938_arch_init(void)
+{
+ txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, 16);
+ gpiochip_add(&rbtx4938_spi_gpio_chip);
+ return rbtx4938_spi_init();
+}
+arch_initcall(rbtx4938_arch_init);
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+ struct resource res = {
+ .start = base,
+ .end = base + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("txx9wdt", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4938_wdt_init(void)
+{
+ return txx9_wdt_init(TX4938_TMR_REG(2) & 0xfffffffffULL);
+}
+device_initcall(rbtx4938_wdt_init);
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ if (!strcmp(id, "spi-baseclk"))
+ return (struct clk *)(txx9_gbus_clock / 2 / 4);
+ if (!strcmp(id, "imbus_clk"))
+ return (struct clk *)(txx9_gbus_clock / 2);
+ return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/txx9/rbtx4938/spi_eeprom.c b/arch/mips/txx9/rbtx4938/spi_eeprom.c
new file mode 100644
index 000000000000..a7ea8b041c1d
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/spi_eeprom.c
@@ -0,0 +1,99 @@
+/*
+ * spi_eeprom.c
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/eeprom.h>
+#include <asm/txx9/spi.h>
+
+#define AT250X0_PAGE_SIZE 8
+
+/* register board information for at25 driver */
+int __init spi_eeprom_register(int chipid)
+{
+ static struct spi_eeprom eeprom = {
+ .name = "at250x0",
+ .byte_len = 128,
+ .page_size = AT250X0_PAGE_SIZE,
+ .flags = EE_ADDR1,
+ };
+ struct spi_board_info info = {
+ .modalias = "at25",
+ .max_speed_hz = 1500000, /* 1.5Mbps */
+ .bus_num = 0,
+ .chip_select = chipid,
+ .platform_data = &eeprom,
+ /* Mode 0: High-Active, Sample-Then-Shift */
+ };
+
+ return spi_register_board_info(&info, 1);
+}
+
+/* simple temporary spi driver to provide early access to seeprom. */
+
+static struct read_param {
+ int chipid;
+ int address;
+ unsigned char *buf;
+ int len;
+} *read_param;
+
+static int __init early_seeprom_probe(struct spi_device *spi)
+{
+ int stat = 0;
+ u8 cmd[2];
+ int len = read_param->len;
+ char *buf = read_param->buf;
+ int address = read_param->address;
+
+ dev_info(&spi->dev, "spiclk %u KHz.\n",
+ (spi->max_speed_hz + 500) / 1000);
+ if (read_param->chipid != spi->chip_select)
+ return -ENODEV;
+ while (len > 0) {
+ /* spi_write_then_read can only work with small chunk */
+ int c = len < AT250X0_PAGE_SIZE ? len : AT250X0_PAGE_SIZE;
+ cmd[0] = 0x03; /* AT25_READ */
+ cmd[1] = address;
+ stat = spi_write_then_read(spi, cmd, sizeof(cmd), buf, c);
+ buf += c;
+ len -= c;
+ address += c;
+ }
+ return stat;
+}
+
+static struct spi_driver early_seeprom_driver __initdata = {
+ .driver = {
+ .name = "at25",
+ .owner = THIS_MODULE,
+ },
+ .probe = early_seeprom_probe,
+};
+
+int __init spi_eeprom_read(int chipid, int address,
+ unsigned char *buf, int len)
+{
+ int ret;
+ struct read_param param = {
+ .chipid = chipid,
+ .address = address,
+ .buf = buf,
+ .len = len
+ };
+
+ read_param = &param;
+ ret = spi_register_driver(&early_seeprom_driver);
+ if (!ret)
+ spi_unregister_driver(&early_seeprom_driver);
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 10:53:12 +0000