[PATCH] SharpSL: Add new ARM PXA machines Spitz and Borzoi with partial Akita Support

Add the platform support code for two new Sharp Zaurus Models, Spitz
(SL-C3000) and Borzoi (SL-C3100).

This patch also adds most of the foundations for Akita (SL-C1000) Support.
The missing link for Akita is the driver for its I2C io expander.  Once this
has been finished, the missing Kconfig option and machine declaration can
easily be added to this code.

Signed-Off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 421 insertions, 9 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 405a55f2287c..3e5f69bb5ac4 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -20,40 +20,66 @@ config ARCH_PXA_IDP
 	select PXA25x
 
 config PXA_SHARPSL
-	bool "SHARP SL-5600 and SL-C7xx Models"
-	select PXA25x
+	bool "SHARP Zaurus SL-5600, SL-C7xx and SL-Cxx00 Models"
 	select SHARP_SCOOP
 	select SHARP_PARAM
 	help
 	  Say Y here if you intend to run this kernel on a
-	  Sharp SL-5600 (Poodle), Sharp SL-C700 (Corgi),
-	  SL-C750 (Shepherd) or a Sharp SL-C760 (Husky)
-	  handheld computer.
+	  Sharp Zaurus SL-5600 (Poodle), SL-C700 (Corgi),
+	  SL-C750 (Shepherd), SL-C760 (Husky), SL-C1000 (Akita),
+	  SL-C3000 (Spitz) or SL-C3100 (Borzoi) handheld computer.
 
 endchoice
 
+if PXA_SHARPSL
+
+choice
+	prompt "Select target Sharp Zaurus device range"
+
+config PXA_SHARPSL_25x
+	bool "Sharp PXA25x models (SL-5600 and SL-C7xx)"
+	select PXA25x
+
+config PXA_SHARPSL_27x
+	bool "Sharp PXA270 models (SL-Cxx00)"
+	select PXA27x
+
+endchoice
+
+endif
+
 endmenu
 
 config MACH_POODLE
 	bool "Enable Sharp SL-5600 (Poodle) Support"
-	depends PXA_SHARPSL
+	depends PXA_SHARPSL_25x
 	select SHARP_LOCOMO
 
 config MACH_CORGI
 	bool "Enable Sharp SL-C700 (Corgi) Support"
-	depends PXA_SHARPSL
+	depends PXA_SHARPSL_25x
 	select PXA_SHARP_C7xx
 
 config MACH_SHEPHERD
 	bool "Enable Sharp SL-C750 (Shepherd) Support"
-	depends PXA_SHARPSL
+	depends PXA_SHARPSL_25x
 	select PXA_SHARP_C7xx
 
 config MACH_HUSKY
 	bool "Enable Sharp SL-C760 (Husky) Support"
-	depends PXA_SHARPSL
+	depends PXA_SHARPSL_25x
 	select PXA_SHARP_C7xx
 
+config MACH_SPITZ
+	bool "Enable Sharp Zaurus SL-3000 (Spitz) Support"
+	depends PXA_SHARPSL_27x
+	select PXA_SHARP_Cxx00
+
+config MACH_BORZOI
+	bool "Enable Sharp Zaurus SL-3100 (Borzoi) Support"
+	depends PXA_SHARPSL_27x
+	select PXA_SHARP_Cxx00
+
 config PXA25x
 	bool
 	help
@@ -74,4 +100,9 @@ config PXA_SHARP_C7xx
 	help
 	  Enable support for all Sharp C7xx models
 
+config PXA_SHARP_Cxx00
+	bool
+	help
+	  Enable common support for Sharp Cxx00 models
+
 endif
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 33dae99ec2d8..f609a0f232cb 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o
 obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o
 obj-$(CONFIG_ARCH_PXA_IDP) += idp.o
 obj-$(CONFIG_PXA_SHARP_C7xx)	+= corgi.o corgi_ssp.o corgi_lcd.o ssp.o
+obj-$(CONFIG_PXA_SHARP_Cxx00)	+= spitz.o corgi_ssp.o corgi_lcd.o ssp.o
 obj-$(CONFIG_MACH_POODLE)	+= poodle.o
 
 # Support for blinky lights
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
new file mode 100644
index 000000000000..568afe3d6e1a
--- /dev/null
+++ b/arch/arm/mach-pxa/spitz.c
@@ -0,0 +1,380 @@
+/*
+ * Support for Sharp SL-Cxx00 Series of PDAs
+ * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
+ *
+ * Copyright (c) 2005 Richard Purdie
+ *
+ * Based on Sharp's 2.4 kernel patches/lubbock.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/major.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/mmc/host.h>
+
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/irq.h>
+#include <asm/arch/mmc.h>
+#include <asm/arch/udc.h>
+#include <asm/arch/ohci.h>
+#include <asm/arch/pxafb.h>
+#include <asm/arch/akita.h>
+#include <asm/arch/spitz.h>
+#include <asm/arch/sharpsl.h>
+
+#include <asm/mach/sharpsl_param.h>
+#include <asm/hardware/scoop.h>
+
+#include "generic.h"
+#include "sharpsl.h"
+
+/*
+ * Spitz SCOOP Device #1
+ */
+static struct resource spitz_scoop_resources[] = {
+	[0] = {
+		.start		= 0x10800000,
+		.end		= 0x10800fff,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct scoop_config spitz_scoop_setup = {
+	.io_dir 	= SPITZ_SCP_IO_DIR,
+	.io_out		= SPITZ_SCP_IO_OUT,
+	.suspend_clr = SPITZ_SCP_SUS_CLR,
+	.suspend_set = SPITZ_SCP_SUS_SET,
+};
+
+struct platform_device spitzscoop_device = {
+	.name		= "sharp-scoop",
+	.id		= 0,
+	.dev		= {
+ 		.platform_data	= &spitz_scoop_setup,
+	},
+	.num_resources	= ARRAY_SIZE(spitz_scoop_resources),
+	.resource	= spitz_scoop_resources,
+};
+
+/*
+ * Spitz SCOOP Device #2
+ */
+static struct resource spitz_scoop2_resources[] = {
+	[0] = {
+		.start		= 0x08800040,
+		.end		= 0x08800fff,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct scoop_config spitz_scoop2_setup = {
+	.io_dir 	= SPITZ_SCP2_IO_DIR,
+	.io_out		= SPITZ_SCP2_IO_OUT,
+	.suspend_clr = SPITZ_SCP2_SUS_CLR,
+	.suspend_set = SPITZ_SCP2_SUS_SET,
+};
+
+struct platform_device spitzscoop2_device = {
+	.name		= "sharp-scoop",
+	.id		= 1,
+	.dev		= {
+ 		.platform_data	= &spitz_scoop2_setup,
+	},
+	.num_resources	= ARRAY_SIZE(spitz_scoop2_resources),
+	.resource	= spitz_scoop2_resources,
+};
+
+static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
+{
+	.dev        = &spitzscoop_device.dev,
+	.irq        = SPITZ_IRQ_GPIO_CF_IRQ,
+	.cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
+	.cd_irq_str = "PCMCIA0 CD",
+},{
+	.dev        = &spitzscoop2_device.dev,
+	.irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
+	.cd_irq     = -1,
+},
+};
+
+
+/*
+ * Spitz SSP Device
+ *
+ * Set the parent as the scoop device because a lot of SSP devices
+ * also use scoop functions and this makes the power up/down order
+ * work correctly.
+ */
+struct platform_device spitzssp_device = {
+	.name		= "corgi-ssp",
+	.dev		= {
+ 		.parent = &spitzscoop_device.dev,
+	},
+	.id		= -1,
+};
+
+struct corgissp_machinfo spitz_ssp_machinfo = {
+	.port		= 2,
+	.cs_lcdcon	= SPITZ_GPIO_LCDCON_CS,
+	.cs_ads7846	= SPITZ_GPIO_ADS7846_CS,
+	.cs_max1111	= SPITZ_GPIO_MAX1111_CS,
+	.clk_lcdcon	= 520,
+	.clk_ads7846	= 14,
+	.clk_max1111	= 56,
+};
+
+
+/*
+ * Spitz Backlight Device
+ */
+static struct corgibl_machinfo spitz_bl_machinfo = {
+	.max_intensity = 0x2f,
+};
+
+static struct platform_device spitzbl_device = {
+	.name		= "corgi-bl",
+	.dev		= {
+ 		.platform_data	= &spitz_bl_machinfo,
+	},
+	.id		= -1,
+};
+
+
+/*
+ * Spitz Keyboard Device
+ */
+static struct platform_device spitzkbd_device = {
+	.name		= "spitz-keyboard",
+	.id		= -1,
+};
+
+
+/*
+ * Spitz Touch Screen Device
+ */
+static struct resource spitzts_resources[] = {
+	[0] = {
+		.start		= SPITZ_IRQ_GPIO_TP_INT,
+		.end		= SPITZ_IRQ_GPIO_TP_INT,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct corgits_machinfo  spitz_ts_machinfo = {
+	.get_hsync_len   = spitz_get_hsync_len,
+	.put_hsync       = spitz_put_hsync,
+	.wait_hsync      = spitz_wait_hsync,
+};
+
+static struct platform_device spitzts_device = {
+	.name		= "corgi-ts",
+	.dev		= {
+ 		.parent = &spitzssp_device.dev,
+		.platform_data	= &spitz_ts_machinfo,
+	},
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(spitzts_resources),
+	.resource	= spitzts_resources,
+};
+
+
+/*
+ * MMC/SD Device
+ *
+ * The card detect interrupt isn't debounced so we delay it by 250ms
+ * to give the card a chance to fully insert/eject.
+ */
+
+static struct pxamci_platform_data spitz_mci_platform_data;
+
+static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data)
+{
+	int err;
+
+	/* setup GPIO for PXA27x MMC controller	*/
+	pxa_gpio_mode(GPIO32_MMCCLK_MD);
+	pxa_gpio_mode(GPIO112_MMCCMD_MD);
+	pxa_gpio_mode(GPIO92_MMCDAT0_MD);
+	pxa_gpio_mode(GPIO109_MMCDAT1_MD);
+	pxa_gpio_mode(GPIO110_MMCDAT2_MD);
+	pxa_gpio_mode(GPIO111_MMCDAT3_MD);
+	pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
+	pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
+
+	spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
+
+	err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, SA_INTERRUPT,
+			     "MMC card detect", data);
+	if (err) {
+		printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
+		return -1;
+	}
+
+	set_irq_type(SPITZ_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
+
+	return 0;
+}
+
+/* Power control is shared with one of the CF slots so we have a mess */
+static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
+{
+	struct pxamci_platform_data* p_d = dev->platform_data;
+
+	unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
+
+	if (( 1 << vdd) & p_d->ocr_mask) {
+		/* printk(KERN_DEBUG "%s: on\n", __FUNCTION__); */
+		set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
+		mdelay(2);
+		write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | 0x04);
+	} else {
+		/* printk(KERN_DEBUG "%s: off\n", __FUNCTION__); */
+		write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr & ~0x04);
+
+		if (!(cpr | 0x02)) {
+			mdelay(1);
+			reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
+		}
+	}
+}
+
+static int spitz_mci_get_ro(struct device *dev)
+{
+	return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
+}
+
+static void spitz_mci_exit(struct device *dev, void *data)
+{
+	free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
+}
+
+static struct pxamci_platform_data spitz_mci_platform_data = {
+	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
+	.init 		= spitz_mci_init,
+	.get_ro		= spitz_mci_get_ro,
+	.setpower 	= spitz_mci_setpower,
+	.exit		= spitz_mci_exit,
+};
+
+
+/*
+ * Spitz PXA Framebuffer
+ */
+static struct pxafb_mach_info spitz_pxafb_info __initdata = {
+        .pixclock       = 19231,
+        .xres           = 480,
+        .yres           = 640,
+        .bpp            = 16,
+        .hsync_len      = 40,
+        .left_margin    = 46,
+        .right_margin   = 125,
+        .vsync_len      = 3,
+        .upper_margin   = 1,
+        .lower_margin   = 0,
+        .sync           = 0,
+        .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
+        .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
+        .pxafb_lcd_power = spitz_lcd_power,
+};
+
+
+static struct platform_device *devices[] __initdata = {
+	&spitzscoop_device,
+	&spitzssp_device,
+	&spitzkbd_device,
+	&spitzts_device,
+	&spitzbl_device,
+	&spitzbattery_device,
+};
+
+static void __init common_init(void)
+{
+	PMCR = 0x00;
+
+	/* setup sleep mode values */
+	PWER  = 0x00000002;
+	PFER  = 0x00000000;
+	PRER  = 0x00000002;
+	PGSR0 = 0x0158C000;
+	PGSR1 = 0x00FF0080;
+	PGSR2 = 0x0001C004;
+
+	/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
+	PCFR |= PCFR_OPDE;
+
+	corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
+
+	pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	pxa_set_mci_info(&spitz_mci_platform_data);
+	pxafb_device.dev.parent = &spitzssp_device.dev;
+	set_pxa_fb_info(&spitz_pxafb_info);
+}
+
+static void __init spitz_init(void)
+{
+	scoop_num = 2;
+	scoop_devs = &spitz_pcmcia_scoop[0];
+	spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
+
+	common_init();
+
+	platform_device_register(&spitzscoop2_device);
+}
+
+static void __init fixup_spitz(struct machine_desc *desc,
+		struct tag *tags, char **cmdline, struct meminfo *mi)
+{
+	sharpsl_save_param();
+	mi->nr_banks = 1;
+	mi->bank[0].start = 0xa0000000;
+	mi->bank[0].node = 0;
+	mi->bank[0].size = (64*1024*1024);
+}
+
+#ifdef CONFIG_MACH_SPITZ
+MACHINE_START(SPITZ, "SHARP Spitz")
+	.phys_ram	= 0xa0000000,
+	.phys_io	= 0x40000000,
+	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.fixup		= fixup_spitz,
+	.map_io		= pxa_map_io,
+	.init_irq	= pxa_init_irq,
+	.init_machine	= spitz_init,
+	.timer		= &pxa_timer,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_BORZOI
+MACHINE_START(BORZOI, "SHARP Borzoi")
+	.phys_ram	= 0xa0000000,
+	.phys_io	= 0x40000000,
+	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.fixup		= fixup_spitz,
+	.map_io		= pxa_map_io,
+	.init_irq	= pxa_init_irq,
+	.init_machine	= spitz_init,
+	.timer		= &pxa_timer,
+MACHINE_END
+#endif