diff options
Diffstat (limited to 'arch/arm/mach-pxa/corgi.c')
| -rw-r--r-- | arch/arm/mach-pxa/corgi.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c new file mode 100644 index 00000000000..f691cf77d39 --- /dev/null +++ b/arch/arm/mach-pxa/corgi.c @@ -0,0 +1,320 @@ +/* + * Support for Sharp SL-C7xx PDAs + * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky) + * + * Copyright (c) 2004-2005 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/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/corgi.h> + +#include <asm/mach/sharpsl_param.h> +#include <asm/hardware/scoop.h> +#include <video/w100fb.h> + +#include "generic.h" + + +/* + * Corgi SCOOP Device + */ +static struct resource corgi_scoop_resources[] = { + [0] = { + .start = 0x10800000, + .end = 0x10800fff, + .flags = IORESOURCE_MEM, + }, +}; + +static struct scoop_config corgi_scoop_setup = { + .io_dir = CORGI_SCOOP_IO_DIR, + .io_out = CORGI_SCOOP_IO_OUT, +}; + +struct platform_device corgiscoop_device = { + .name = "sharp-scoop", + .id = -1, + .dev = { + .platform_data = &corgi_scoop_setup, + }, + .num_resources = ARRAY_SIZE(corgi_scoop_resources), + .resource = corgi_scoop_resources, +}; + + +/* + * Corgi 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. + */ +static struct platform_device corgissp_device = { + .name = "corgi-ssp", + .dev = { + .parent = &corgiscoop_device.dev, + }, + .id = -1, +}; + + +/* + * Corgi w100 Frame Buffer Device + */ +static struct w100fb_mach_info corgi_fb_info = { + .w100fb_ssp_send = corgi_ssp_lcdtg_send, + .comadj = -1, + .phadadj = -1, +}; + +static struct resource corgi_fb_resources[] = { + [0] = { + .start = 0x08000000, + .end = 0x08ffffff, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device corgifb_device = { + .name = "w100fb", + .id = -1, + .dev = { + .platform_data = &corgi_fb_info, + .parent = &corgissp_device.dev, + }, + .num_resources = ARRAY_SIZE(corgi_fb_resources), + .resource = corgi_fb_resources, +}; + + +/* + * Corgi Backlight Device + */ +static struct platform_device corgibl_device = { + .name = "corgi-bl", + .dev = { + .parent = &corgifb_device.dev, + }, + .id = -1, +}; + + +/* + * MMC/SD Device + * + * The card detect interrupt isn't debounced so we delay it by HZ/4 + * to give the card a chance to fully insert/eject. + */ +static struct mmc_detect { + struct timer_list detect_timer; + void *devid; +} mmc_detect; + +static void mmc_detect_callback(unsigned long data) +{ + mmc_detect_change(mmc_detect.devid); +} + +static irqreturn_t corgi_mmc_detect_int(int irq, void *devid, struct pt_regs *regs) +{ + mmc_detect.devid=devid; + mod_timer(&mmc_detect.detect_timer, jiffies + HZ/4); + return IRQ_HANDLED; +} + +static int corgi_mci_init(struct device *dev, irqreturn_t (*unused_detect_int)(int, void *, struct pt_regs *), void *data) +{ + int err; + + /* setup GPIO for PXA25x MMC controller */ + pxa_gpio_mode(GPIO6_MMCCLK_MD); + pxa_gpio_mode(GPIO8_MMCCS0_MD); + pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN); + pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT); + + init_timer(&mmc_detect.detect_timer); + mmc_detect.detect_timer.function = mmc_detect_callback; + mmc_detect.detect_timer.data = (unsigned long) &mmc_detect; + + err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_mmc_detect_int, SA_INTERRUPT, + "MMC card detect", data); + if (err) { + printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); + return -1; + } + + set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE); + + return 0; +} + +static void corgi_mci_setpower(struct device *dev, unsigned int vdd) +{ + struct pxamci_platform_data* p_d = dev->platform_data; + + if (( 1 << vdd) & p_d->ocr_mask) { + printk(KERN_DEBUG "%s: on\n", __FUNCTION__); + GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR); + } else { + printk(KERN_DEBUG "%s: off\n", __FUNCTION__); + GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR); + } +} + +static void corgi_mci_exit(struct device *dev, void *data) +{ + free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data); + del_timer(&mmc_detect.detect_timer); +} + +static struct pxamci_platform_data corgi_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, + .init = corgi_mci_init, + .setpower = corgi_mci_setpower, + .exit = corgi_mci_exit, +}; + + +/* + * USB Device Controller + */ +static void corgi_udc_command(int cmd) +{ + switch(cmd) { + case PXA2XX_UDC_CMD_CONNECT: + GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP); + break; + case PXA2XX_UDC_CMD_DISCONNECT: + GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP); + break; + } +} + +static struct pxa2xx_udc_mach_info udc_info __initdata = { + /* no connect GPIO; corgi can't tell connection status */ + .udc_command = corgi_udc_command, +}; + + +static struct platform_device *devices[] __initdata = { + &corgiscoop_device, + &corgissp_device, + &corgifb_device, + &corgibl_device, +}; + +static void __init corgi_init(void) +{ + corgi_fb_info.comadj=sharpsl_param.comadj; + corgi_fb_info.phadadj=sharpsl_param.phadadj; + + pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT); + pxa_set_udc_info(&udc_info); + pxa_set_mci_info(&corgi_mci_platform_data); + + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +static void __init fixup_corgi(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; + if (machine_is_corgi()) + mi->bank[0].size = (32*1024*1024); + else + mi->bank[0].size = (64*1024*1024); +} + +static void __init corgi_init_irq(void) +{ + pxa_init_irq(); +} + +static struct map_desc corgi_io_desc[] __initdata = { +/* virtual physical length */ +/* { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */ +/* { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/ /* SCOOP */ + { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */ +}; + +static void __init corgi_map_io(void) +{ + pxa_map_io(); + iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc)); + + /* 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; +} + +#ifdef CONFIG_MACH_CORGI +MACHINE_START(CORGI, "SHARP Corgi") + BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000)) + FIXUP(fixup_corgi) + MAPIO(corgi_map_io) + INITIRQ(corgi_init_irq) + .init_machine = corgi_init, + .timer = &pxa_timer, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_SHEPHERD +MACHINE_START(SHEPHERD, "SHARP Shepherd") + BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000)) + FIXUP(fixup_corgi) + MAPIO(corgi_map_io) + INITIRQ(corgi_init_irq) + .init_machine = corgi_init, + .timer = &pxa_timer, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_HUSKY +MACHINE_START(HUSKY, "SHARP Husky") + BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000)) + FIXUP(fixup_corgi) + MAPIO(corgi_map_io) + INITIRQ(corgi_init_irq) + .init_machine = corgi_init, + .timer = &pxa_timer, +MACHINE_END +#endif + |