summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-dove
diff options
context:
space:
mode:
authorOlof Johansson <olof@lixom.net>2012-09-22 13:22:21 -0700
committerOlof Johansson <olof@lixom.net>2012-09-22 13:22:21 -0700
commit80868a36913e11cfcd06764699b4284d34be0e59 (patch)
treeaf4c634ccde4c0b4b7bf361e53611ab9903d1a2c /arch/arm/mach-dove
parentb1618547bb68bd32a8b5ed20f97fa577d16b6801 (diff)
parent0f81bd438bed6af47a01a97d5ecbb23a7e478de6 (diff)
downloadlinux-80868a36913e11cfcd06764699b4284d34be0e59.tar.bz2
Merge branch 'kirkwood/boards' of git://git.infradead.org/users/jcooper/linux into late/kirkwood
* 'kirkwood/boards' of git://git.infradead.org/users/jcooper/linux: ARM: Dove: allow PCI to be disabled ARM: dove: SolidRun CuBox DT ARM: dove: add device tree descriptors ARM: dove: add device tree based machine descriptor ARM: dove: add crypto engine ARM: dove: add clock gating control ARM: dove: unify clock setup ARM: initial DTS support for km_kirkwood arm: add documentation describing Marvell families of SoC ARM: kirkwood: DT descriptor for Seagate FreeAgent Dockstar ARM: kirkwood: DT board setup for Seagate FreeAgent Dockstar ARM: Kirkwood: Iomega ix2-200 DT support Context conflicts in arch/arm/Kconfig and arch/arm/mach-dove/common.c. The new device trees added to arch/arm/mach-kirkwood/Makefile.boot are kept and dealt with in a separate changeset, since moving them out to the new Makefile in this merge commit doesn't work well. Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-dove')
-rw-r--r--arch/arm/mach-dove/Kconfig7
-rw-r--r--arch/arm/mach-dove/Makefile4
-rw-r--r--arch/arm/mach-dove/Makefile.boot4
-rw-r--r--arch/arm/mach-dove/common.c153
-rw-r--r--arch/arm/mach-dove/common.h4
-rw-r--r--arch/arm/mach-dove/include/mach/pm.h54
6 files changed, 194 insertions, 32 deletions
diff --git a/arch/arm/mach-dove/Kconfig b/arch/arm/mach-dove/Kconfig
index dd937c526a45..00154e74ce6b 100644
--- a/arch/arm/mach-dove/Kconfig
+++ b/arch/arm/mach-dove/Kconfig
@@ -15,6 +15,13 @@ config MACH_CM_A510
Say 'Y' here if you want your kernel to support the
CompuLab CM-A510 Board.
+config MACH_DOVE_DT
+ bool "Marvell Dove Flattened Device Tree"
+ select USE_OF
+ help
+ Say 'Y' here if you want your kernel to support the
+ Marvell Dove using flattened device tree.
+
endmenu
endif
diff --git a/arch/arm/mach-dove/Makefile b/arch/arm/mach-dove/Makefile
index fa0f01856060..5e683baf96cf 100644
--- a/arch/arm/mach-dove/Makefile
+++ b/arch/arm/mach-dove/Makefile
@@ -1,4 +1,4 @@
-obj-y += common.o addr-map.o irq.o pcie.o mpp.o
-
+obj-y += common.o addr-map.o irq.o mpp.o
+obj-$(CONFIG_PCI) += pcie.o
obj-$(CONFIG_MACH_DOVE_DB) += dove-db-setup.o
obj-$(CONFIG_MACH_CM_A510) += cm-a510.o
diff --git a/arch/arm/mach-dove/Makefile.boot b/arch/arm/mach-dove/Makefile.boot
index 760a0efe7580..cfac9c5157cc 100644
--- a/arch/arm/mach-dove/Makefile.boot
+++ b/arch/arm/mach-dove/Makefile.boot
@@ -1,3 +1,7 @@
zreladdr-y += 0x00008000
params_phys-y := 0x00000100
initrd_phys-y := 0x00800000
+
+dtb-$(CONFIG_MACH_DOVE_DT) += dove-dove-db.dtb
+dtb-$(CONFIG_MACH_DOVE_DT) += dove-cm-a510.dtb
+dtb-$(CONFIG_MACH_DOVE_DT) += dove-cubox.dtb
diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
index 950ad9533d19..28475bb7d36f 100644
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -16,6 +16,8 @@
#include <linux/clk-provider.h>
#include <linux/ata_platform.h>
#include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/timex.h>
@@ -24,6 +26,7 @@
#include <asm/mach/time.h>
#include <asm/mach/pci.h>
#include <mach/dove.h>
+#include <mach/pm.h>
#include <mach/bridge-regs.h>
#include <asm/mach/arch.h>
#include <linux/irq.h>
@@ -33,8 +36,6 @@
#include <plat/addr-map.h>
#include "common.h"
-static int get_tclk(void);
-
/*****************************************************************************
* I/O Address Mapping
****************************************************************************/
@@ -60,14 +61,69 @@ void __init dove_map_io(void)
/*****************************************************************************
* CLK tree
****************************************************************************/
+static int dove_tclk;
+
+static DEFINE_SPINLOCK(gating_lock);
static struct clk *tclk;
-static void __init clk_init(void)
+static struct clk __init *dove_register_gate(const char *name,
+ const char *parent, u8 bit_idx)
{
- tclk = clk_register_fixed_rate(NULL, "tclk", NULL, CLK_IS_ROOT,
- get_tclk());
+ return clk_register_gate(NULL, name, parent, 0,
+ (void __iomem *)CLOCK_GATING_CONTROL,
+ bit_idx, 0, &gating_lock);
+}
+
+static void __init dove_clk_init(void)
+{
+ struct clk *usb0, *usb1, *sata, *pex0, *pex1, *sdio0, *sdio1;
+ struct clk *nand, *camera, *i2s0, *i2s1, *crypto, *ac97, *pdma;
+ struct clk *xor0, *xor1, *ge, *gephy;
- orion_clkdev_init(tclk);
+ tclk = clk_register_fixed_rate(NULL, "tclk", NULL, CLK_IS_ROOT,
+ dove_tclk);
+
+ usb0 = dove_register_gate("usb0", "tclk", CLOCK_GATING_BIT_USB0);
+ usb1 = dove_register_gate("usb1", "tclk", CLOCK_GATING_BIT_USB1);
+ sata = dove_register_gate("sata", "tclk", CLOCK_GATING_BIT_SATA);
+ pex0 = dove_register_gate("pex0", "tclk", CLOCK_GATING_BIT_PCIE0);
+ pex1 = dove_register_gate("pex1", "tclk", CLOCK_GATING_BIT_PCIE1);
+ sdio0 = dove_register_gate("sdio0", "tclk", CLOCK_GATING_BIT_SDIO0);
+ sdio1 = dove_register_gate("sdio1", "tclk", CLOCK_GATING_BIT_SDIO1);
+ nand = dove_register_gate("nand", "tclk", CLOCK_GATING_BIT_NAND);
+ camera = dove_register_gate("camera", "tclk", CLOCK_GATING_BIT_CAMERA);
+ i2s0 = dove_register_gate("i2s0", "tclk", CLOCK_GATING_BIT_I2S0);
+ i2s1 = dove_register_gate("i2s1", "tclk", CLOCK_GATING_BIT_I2S1);
+ crypto = dove_register_gate("crypto", "tclk", CLOCK_GATING_BIT_CRYPTO);
+ ac97 = dove_register_gate("ac97", "tclk", CLOCK_GATING_BIT_AC97);
+ pdma = dove_register_gate("pdma", "tclk", CLOCK_GATING_BIT_PDMA);
+ xor0 = dove_register_gate("xor0", "tclk", CLOCK_GATING_BIT_XOR0);
+ xor1 = dove_register_gate("xor1", "tclk", CLOCK_GATING_BIT_XOR1);
+ gephy = dove_register_gate("gephy", "tclk", CLOCK_GATING_BIT_GIGA_PHY);
+ ge = dove_register_gate("ge", "gephy", CLOCK_GATING_BIT_GBE);
+
+ orion_clkdev_add(NULL, "orion_spi.0", tclk);
+ orion_clkdev_add(NULL, "orion_spi.1", tclk);
+ orion_clkdev_add(NULL, "orion_wdt", tclk);
+ orion_clkdev_add(NULL, "mv64xxx_i2c.0", tclk);
+
+ orion_clkdev_add(NULL, "orion-ehci.0", usb0);
+ orion_clkdev_add(NULL, "orion-ehci.1", usb1);
+ orion_clkdev_add(NULL, "mv643xx_eth.0", ge);
+ orion_clkdev_add("0", "sata_mv.0", sata);
+ orion_clkdev_add("0", "pcie", pex0);
+ orion_clkdev_add("1", "pcie", pex1);
+ orion_clkdev_add(NULL, "sdhci-dove.0", sdio0);
+ orion_clkdev_add(NULL, "sdhci-dove.1", sdio1);
+ orion_clkdev_add(NULL, "orion_nand", nand);
+ orion_clkdev_add(NULL, "cafe1000-ccic.0", camera);
+ orion_clkdev_add(NULL, "kirkwood-i2s.0", i2s0);
+ orion_clkdev_add(NULL, "kirkwood-i2s.1", i2s1);
+ orion_clkdev_add(NULL, "mv_crypto", crypto);
+ orion_clkdev_add(NULL, "dove-ac97", ac97);
+ orion_clkdev_add(NULL, "dove-pdma", pdma);
+ orion_clkdev_add(NULL, "mv_xor_shared.0", xor0);
+ orion_clkdev_add(NULL, "mv_xor_shared.1", xor1);
}
/*****************************************************************************
@@ -178,16 +234,16 @@ void __init dove_init_early(void)
orion_time_set_base(TIMER_VIRT_BASE);
}
-static int get_tclk(void)
+static int __init dove_find_tclk(void)
{
- /* use DOVE_RESET_SAMPLE_HI/LO to detect tclk */
return 166666667;
}
static void __init dove_timer_init(void)
{
+ dove_tclk = dove_find_tclk();
orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
- IRQ_DOVE_BRIDGE, get_tclk());
+ IRQ_DOVE_BRIDGE, dove_tclk);
}
struct sys_timer dove_timer = {
@@ -195,6 +251,15 @@ struct sys_timer dove_timer = {
};
/*****************************************************************************
+ * Cryptographic Engines and Security Accelerator (CESA)
+ ****************************************************************************/
+void __init dove_crypto_init(void)
+{
+ orion_crypto_init(DOVE_CRYPT_PHYS_BASE, DOVE_CESA_PHYS_BASE,
+ DOVE_CESA_SIZE, IRQ_DOVE_CRYPTO);
+}
+
+/*****************************************************************************
* XOR 0
****************************************************************************/
void __init dove_xor0_init(void)
@@ -275,8 +340,8 @@ void __init dove_sdio1_init(void)
void __init dove_init(void)
{
- printk(KERN_INFO "Dove 88AP510 SoC, ");
- printk(KERN_INFO "TCLK = %dMHz\n", (get_tclk() + 499999) / 1000000);
+ pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
+ (dove_tclk + 499999) / 1000000);
#ifdef CONFIG_CACHE_TAUROS2
tauros2_init(0);
@@ -284,7 +349,7 @@ void __init dove_init(void)
dove_setup_cpu_mbus();
/* Setup root of clk tree */
- clk_init();
+ dove_clk_init();
/* internal devices that every board has */
dove_rtc_init();
@@ -307,3 +372,67 @@ void dove_restart(char mode, const char *cmd)
while (1)
;
}
+
+#if defined(CONFIG_MACH_DOVE_DT)
+/*
+ * Auxdata required until real OF clock provider
+ */
+struct of_dev_auxdata dove_auxdata_lookup[] __initdata = {
+ OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
+ OF_DEV_AUXDATA("marvell,orion-spi", 0xf1014600, "orion_spi.1", NULL),
+ OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
+ OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
+ NULL),
+ OF_DEV_AUXDATA("marvell,orion-sata", 0xf10a0000, "sata_mv.0", NULL),
+ OF_DEV_AUXDATA("marvell,dove-sdhci", 0xf1092000, "sdhci-dove.0", NULL),
+ OF_DEV_AUXDATA("marvell,dove-sdhci", 0xf1090000, "sdhci-dove.1", NULL),
+ {},
+};
+
+static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
+ .phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
+};
+
+static void __init dove_dt_init(void)
+{
+ pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
+ (dove_tclk + 499999) / 1000000);
+
+#ifdef CONFIG_CACHE_TAUROS2
+ tauros2_init();
+#endif
+ dove_setup_cpu_mbus();
+
+ /* Setup root of clk tree */
+ dove_clk_init();
+
+ /* Internal devices not ported to DT yet */
+ dove_rtc_init();
+ dove_xor0_init();
+ dove_xor1_init();
+
+ dove_ge00_init(&dove_dt_ge00_data);
+ dove_ehci0_init();
+ dove_ehci1_init();
+ dove_pcie_init(1, 1);
+ dove_crypto_init();
+
+ of_platform_populate(NULL, of_default_bus_match_table,
+ dove_auxdata_lookup, NULL);
+}
+
+static const char * const dove_dt_board_compat[] = {
+ "marvell,dove",
+ NULL
+};
+
+DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
+ .map_io = dove_map_io,
+ .init_early = dove_init_early,
+ .init_irq = orion_dt_init_irq,
+ .timer = &dove_timer,
+ .init_machine = dove_dt_init,
+ .restart = dove_restart,
+ .dt_compat = dove_dt_board_compat,
+MACHINE_END
+#endif
diff --git a/arch/arm/mach-dove/common.h b/arch/arm/mach-dove/common.h
index 6432a3ba864b..1a233404b735 100644
--- a/arch/arm/mach-dove/common.h
+++ b/arch/arm/mach-dove/common.h
@@ -26,7 +26,11 @@ void dove_init_irq(void);
void dove_setup_cpu_mbus(void);
void dove_ge00_init(struct mv643xx_eth_platform_data *eth_data);
void dove_sata_init(struct mv_sata_platform_data *sata_data);
+#ifdef CONFIG_PCI
void dove_pcie_init(int init_port0, int init_port1);
+#else
+static inline void dove_pcie_init(int init_port0, int init_port1) { }
+#endif
void dove_ehci0_init(void);
void dove_ehci1_init(void);
void dove_uart0_init(void);
diff --git a/arch/arm/mach-dove/include/mach/pm.h b/arch/arm/mach-dove/include/mach/pm.h
index 3ad9f946a9e8..7bcd0dfce4b1 100644
--- a/arch/arm/mach-dove/include/mach/pm.h
+++ b/arch/arm/mach-dove/include/mach/pm.h
@@ -13,24 +13,42 @@
#include <mach/irqs.h>
#define CLOCK_GATING_CONTROL (DOVE_PMU_VIRT_BASE + 0x38)
-#define CLOCK_GATING_USB0_MASK (1 << 0)
-#define CLOCK_GATING_USB1_MASK (1 << 1)
-#define CLOCK_GATING_GBE_MASK (1 << 2)
-#define CLOCK_GATING_SATA_MASK (1 << 3)
-#define CLOCK_GATING_PCIE0_MASK (1 << 4)
-#define CLOCK_GATING_PCIE1_MASK (1 << 5)
-#define CLOCK_GATING_SDIO0_MASK (1 << 8)
-#define CLOCK_GATING_SDIO1_MASK (1 << 9)
-#define CLOCK_GATING_NAND_MASK (1 << 10)
-#define CLOCK_GATING_CAMERA_MASK (1 << 11)
-#define CLOCK_GATING_I2S0_MASK (1 << 12)
-#define CLOCK_GATING_I2S1_MASK (1 << 13)
-#define CLOCK_GATING_CRYPTO_MASK (1 << 15)
-#define CLOCK_GATING_AC97_MASK (1 << 21)
-#define CLOCK_GATING_PDMA_MASK (1 << 22)
-#define CLOCK_GATING_XOR0_MASK (1 << 23)
-#define CLOCK_GATING_XOR1_MASK (1 << 24)
-#define CLOCK_GATING_GIGA_PHY_MASK (1 << 30)
+#define CLOCK_GATING_BIT_USB0 0
+#define CLOCK_GATING_BIT_USB1 1
+#define CLOCK_GATING_BIT_GBE 2
+#define CLOCK_GATING_BIT_SATA 3
+#define CLOCK_GATING_BIT_PCIE0 4
+#define CLOCK_GATING_BIT_PCIE1 5
+#define CLOCK_GATING_BIT_SDIO0 8
+#define CLOCK_GATING_BIT_SDIO1 9
+#define CLOCK_GATING_BIT_NAND 10
+#define CLOCK_GATING_BIT_CAMERA 11
+#define CLOCK_GATING_BIT_I2S0 12
+#define CLOCK_GATING_BIT_I2S1 13
+#define CLOCK_GATING_BIT_CRYPTO 15
+#define CLOCK_GATING_BIT_AC97 21
+#define CLOCK_GATING_BIT_PDMA 22
+#define CLOCK_GATING_BIT_XOR0 23
+#define CLOCK_GATING_BIT_XOR1 24
+#define CLOCK_GATING_BIT_GIGA_PHY 30
+#define CLOCK_GATING_USB0_MASK (1 << CLOCK_GATING_BIT_USB0)
+#define CLOCK_GATING_USB1_MASK (1 << CLOCK_GATING_BIT_USB1)
+#define CLOCK_GATING_GBE_MASK (1 << CLOCK_GATING_BIT_GBE)
+#define CLOCK_GATING_SATA_MASK (1 << CLOCK_GATING_BIT_SATA)
+#define CLOCK_GATING_PCIE0_MASK (1 << CLOCK_GATING_BIT_PCIE0)
+#define CLOCK_GATING_PCIE1_MASK (1 << CLOCK_GATING_BIT_PCIE1)
+#define CLOCK_GATING_SDIO0_MASK (1 << CLOCK_GATING_BIT_SDIO0)
+#define CLOCK_GATING_SDIO1_MASK (1 << CLOCK_GATING_BIT_SDIO1)
+#define CLOCK_GATING_NAND_MASK (1 << CLOCK_GATING_BIT_NAND)
+#define CLOCK_GATING_CAMERA_MASK (1 << CLOCK_GATING_BIT_CAMERA)
+#define CLOCK_GATING_I2S0_MASK (1 << CLOCK_GATING_BIT_I2S0)
+#define CLOCK_GATING_I2S1_MASK (1 << CLOCK_GATING_BIT_I2S1)
+#define CLOCK_GATING_CRYPTO_MASK (1 << CLOCK_GATING_BIT_CRYPTO)
+#define CLOCK_GATING_AC97_MASK (1 << CLOCK_GATING_BIT_AC97)
+#define CLOCK_GATING_PDMA_MASK (1 << CLOCK_GATING_BIT_PDMA)
+#define CLOCK_GATING_XOR0_MASK (1 << CLOCK_GATING_BIT_XOR0)
+#define CLOCK_GATING_XOR1_MASK (1 << CLOCK_GATING_BIT_XOR1)
+#define CLOCK_GATING_GIGA_PHY_MASK (1 << CLOCK_GATING_BIT_GIGA_PHY)
#define PMU_INTERRUPT_CAUSE (DOVE_PMU_VIRT_BASE + 0x50)
#define PMU_INTERRUPT_MASK (DOVE_PMU_VIRT_BASE + 0x54)