402 lines
9.1 KiB
C
402 lines
9.1 KiB
C
/*
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* Support for Sharp SL-C7xx PDAs
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* Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
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*
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* Copyright (c) 2004-2005 Richard Purdie
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*
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* Based on Sharp's 2.4 kernel patches/lubbock.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/major.h>
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#include <linux/fs.h>
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#include <linux/interrupt.h>
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#include <linux/mmc/host.h>
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#include <linux/pm.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <asm/hardware.h>
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#include <asm/irq.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/irda.h>
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#include <asm/arch/mmc.h>
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#include <asm/arch/udc.h>
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#include <asm/arch/corgi.h>
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#include <asm/arch/sharpsl.h>
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#include <asm/mach/sharpsl_param.h>
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#include <asm/hardware/scoop.h>
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#include "generic.h"
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#include "devices.h"
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#include "sharpsl.h"
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/*
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* Corgi SCOOP Device
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*/
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static struct resource corgi_scoop_resources[] = {
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[0] = {
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.start = 0x10800000,
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.end = 0x10800fff,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct scoop_config corgi_scoop_setup = {
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.io_dir = CORGI_SCOOP_IO_DIR,
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.io_out = CORGI_SCOOP_IO_OUT,
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};
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struct platform_device corgiscoop_device = {
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.name = "sharp-scoop",
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.id = -1,
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.dev = {
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.platform_data = &corgi_scoop_setup,
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},
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.num_resources = ARRAY_SIZE(corgi_scoop_resources),
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.resource = corgi_scoop_resources,
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};
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static void corgi_pcmcia_init(void)
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{
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/* Setup default state of GPIO outputs
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before we enable them as outputs. */
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GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
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GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
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GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
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GPIO_bit(GPIO53_nPCE_2);
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pxa_gpio_mode(GPIO48_nPOE_MD);
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pxa_gpio_mode(GPIO49_nPWE_MD);
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pxa_gpio_mode(GPIO50_nPIOR_MD);
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pxa_gpio_mode(GPIO51_nPIOW_MD);
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pxa_gpio_mode(GPIO55_nPREG_MD);
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pxa_gpio_mode(GPIO56_nPWAIT_MD);
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pxa_gpio_mode(GPIO57_nIOIS16_MD);
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pxa_gpio_mode(GPIO52_nPCE_1_MD);
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pxa_gpio_mode(GPIO53_nPCE_2_MD);
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pxa_gpio_mode(GPIO54_pSKTSEL_MD);
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}
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static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
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{
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.dev = &corgiscoop_device.dev,
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.irq = CORGI_IRQ_GPIO_CF_IRQ,
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.cd_irq = CORGI_IRQ_GPIO_CF_CD,
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.cd_irq_str = "PCMCIA0 CD",
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},
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};
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static struct scoop_pcmcia_config corgi_pcmcia_config = {
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.devs = &corgi_pcmcia_scoop[0],
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.num_devs = 1,
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.pcmcia_init = corgi_pcmcia_init,
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};
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EXPORT_SYMBOL(corgiscoop_device);
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/*
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* Corgi SSP Device
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*
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* Set the parent as the scoop device because a lot of SSP devices
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* also use scoop functions and this makes the power up/down order
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* work correctly.
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*/
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struct platform_device corgissp_device = {
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.name = "corgi-ssp",
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.dev = {
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.parent = &corgiscoop_device.dev,
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},
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.id = -1,
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};
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struct corgissp_machinfo corgi_ssp_machinfo = {
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.port = 1,
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.cs_lcdcon = CORGI_GPIO_LCDCON_CS,
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.cs_ads7846 = CORGI_GPIO_ADS7846_CS,
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.cs_max1111 = CORGI_GPIO_MAX1111_CS,
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.clk_lcdcon = 76,
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.clk_ads7846 = 2,
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.clk_max1111 = 8,
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};
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/*
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* Corgi Backlight Device
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*/
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static struct corgibl_machinfo corgi_bl_machinfo = {
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.max_intensity = 0x2f,
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.default_intensity = 0x1f,
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.limit_mask = 0x0b,
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.set_bl_intensity = corgi_bl_set_intensity,
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};
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static struct platform_device corgibl_device = {
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.name = "corgi-bl",
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.dev = {
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.parent = &corgifb_device.dev,
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.platform_data = &corgi_bl_machinfo,
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},
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.id = -1,
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};
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/*
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* Corgi Keyboard Device
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*/
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static struct platform_device corgikbd_device = {
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.name = "corgi-keyboard",
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.id = -1,
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};
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/*
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* Corgi LEDs
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*/
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static struct platform_device corgiled_device = {
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.name = "corgi-led",
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.id = -1,
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};
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/*
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* Corgi Touch Screen Device
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*/
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static struct resource corgits_resources[] = {
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[0] = {
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.start = CORGI_IRQ_GPIO_TP_INT,
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.end = CORGI_IRQ_GPIO_TP_INT,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct corgits_machinfo corgi_ts_machinfo = {
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.get_hsync_len = corgi_get_hsync_len,
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.put_hsync = corgi_put_hsync,
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.wait_hsync = corgi_wait_hsync,
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};
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static struct platform_device corgits_device = {
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.name = "corgi-ts",
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.dev = {
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.parent = &corgissp_device.dev,
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.platform_data = &corgi_ts_machinfo,
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},
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.id = -1,
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.num_resources = ARRAY_SIZE(corgits_resources),
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.resource = corgits_resources,
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};
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/*
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* MMC/SD Device
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*
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* The card detect interrupt isn't debounced so we delay it by 250ms
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* to give the card a chance to fully insert/eject.
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*/
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static struct pxamci_platform_data corgi_mci_platform_data;
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static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
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{
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int err;
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/* setup GPIO for PXA25x MMC controller */
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pxa_gpio_mode(GPIO6_MMCCLK_MD);
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pxa_gpio_mode(GPIO8_MMCCS0_MD);
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pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
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pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
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corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
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err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
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IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (err) {
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printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
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return -1;
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}
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return 0;
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}
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static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
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{
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struct pxamci_platform_data* p_d = dev->platform_data;
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if (( 1 << vdd) & p_d->ocr_mask)
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GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
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else
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GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
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}
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static int corgi_mci_get_ro(struct device *dev)
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{
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return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
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}
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static void corgi_mci_exit(struct device *dev, void *data)
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{
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free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
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}
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static struct pxamci_platform_data corgi_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = corgi_mci_init,
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.get_ro = corgi_mci_get_ro,
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.setpower = corgi_mci_setpower,
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.exit = corgi_mci_exit,
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};
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/*
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* Irda
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*/
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static void corgi_irda_transceiver_mode(struct device *dev, int mode)
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{
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if (mode & IR_OFF)
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GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
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else
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GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
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}
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static struct pxaficp_platform_data corgi_ficp_platform_data = {
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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.transceiver_mode = corgi_irda_transceiver_mode,
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};
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/*
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* USB Device Controller
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*/
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static struct pxa2xx_udc_mach_info udc_info __initdata = {
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/* no connect GPIO; corgi can't tell connection status */
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.gpio_pullup = CORGI_GPIO_USB_PULLUP,
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};
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static struct platform_device *devices[] __initdata = {
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&corgiscoop_device,
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&corgissp_device,
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&corgifb_device,
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&corgikbd_device,
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&corgibl_device,
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&corgits_device,
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&corgiled_device,
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};
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static void corgi_poweroff(void)
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{
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RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
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if (!machine_is_corgi())
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/* Green LED off tells the bootloader to halt */
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reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
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arm_machine_restart('h');
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}
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static void corgi_restart(char mode)
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{
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RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
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if (!machine_is_corgi())
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/* Green LED on tells the bootloader to reboot */
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set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
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arm_machine_restart('h');
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}
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static void __init corgi_init(void)
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{
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pm_power_off = corgi_poweroff;
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arm_pm_restart = corgi_restart;
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/* setup sleep mode values */
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PWER = 0x00000002;
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PFER = 0x00000000;
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PRER = 0x00000002;
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PGSR0 = 0x0158C000;
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PGSR1 = 0x00FF0080;
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PGSR2 = 0x0001C004;
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/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
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PCFR |= PCFR_OPDE;
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corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
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pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
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pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
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pxa_set_udc_info(&udc_info);
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pxa_set_mci_info(&corgi_mci_platform_data);
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pxa_set_ficp_info(&corgi_ficp_platform_data);
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platform_scoop_config = &corgi_pcmcia_config;
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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static void __init fixup_corgi(struct machine_desc *desc,
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struct tag *tags, char **cmdline, struct meminfo *mi)
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{
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sharpsl_save_param();
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mi->nr_banks=1;
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mi->bank[0].start = 0xa0000000;
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mi->bank[0].node = 0;
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if (machine_is_corgi())
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mi->bank[0].size = (32*1024*1024);
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else
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mi->bank[0].size = (64*1024*1024);
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}
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#ifdef CONFIG_MACH_CORGI
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MACHINE_START(CORGI, "SHARP Corgi")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.fixup = fixup_corgi,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = corgi_init,
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.timer = &pxa_timer,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_SHEPHERD
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MACHINE_START(SHEPHERD, "SHARP Shepherd")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.fixup = fixup_corgi,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = corgi_init,
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.timer = &pxa_timer,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_HUSKY
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MACHINE_START(HUSKY, "SHARP Husky")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.fixup = fixup_corgi,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = corgi_init,
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.timer = &pxa_timer,
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MACHINE_END
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#endif
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