aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-pxa/corgi.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-pxa/corgi.c
downloadlinux-stericsson-2.6.12-rc2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-pxa/corgi.c')
-rw-r--r--arch/arm/mach-pxa/corgi.c320
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 000000000000..f691cf77d390
--- /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
+