- 根目录:
- arch
- arm
- mach-pxa
- mainstone.c
/*
* linux/arch/arm/mach-pxa/mainstone.c
*
* Support for the Intel HCDDBBVA0 Development Platform.
* (go figure how they came up with such name...)
*
* Author: Nicolas Pitre
* Created: Nov 05, 2002
* Copyright: MontaVista Software Inc.
*
* 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/gpio.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/syscore_ops.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/bitops.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/pwm_backlight.h>
#include <linux/smc91x.h>
#include <linux/i2c/pxa-i2c.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>
#include <mach/pxa27x.h>
#include <mach/mainstone.h>
#include <mach/audio.h>
#include <mach/pxafb.h>
#include <mach/mmc.h>
#include <mach/irda.h>
#include <mach/ohci.h>
#include <plat/pxa27x_keypad.h>
#include <mach/smemc.h>
#include "generic.h"
#include "devices.h"
static unsigned long mainstone_pin_config[] = {
/* Chip Select */
GPIO15_nCS_1,
/* LCD - 16bpp Active TFT */
GPIOxx_LCD_TFT_16BPP,
GPIO16_PWM0_OUT, /* Backlight */
/* MMC */
GPIO32_MMC_CLK,
GPIO112_MMC_CMD,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
/* USB Host Port 1 */
GPIO88_USBH1_PWR,
GPIO89_USBH1_PEN,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO79_PSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO45_AC97_SYSCLK,
/* Keypad */
GPIO93_KP_DKIN_0,
GPIO94_KP_DKIN_1,
GPIO95_KP_DKIN_2,
GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
GPIO103_KP_MKOUT_0,
GPIO104_KP_MKOUT_1,
GPIO105_KP_MKOUT_2,
GPIO106_KP_MKOUT_3,
GPIO107_KP_MKOUT_4,
GPIO108_KP_MKOUT_5,
GPIO96_KP_MKOUT_6,
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
/* GPIO */
GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
};
static unsigned long mainstone_irq_enabled;
static void mainstone_mask_irq(struct irq_data *d)
{
int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
}
static void mainstone_unmask_irq(struct irq_data *d)
{
int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
/* the irq can be acknowledged only if deasserted, so it's done here */
MST_INTSETCLR &= ~(1 << mainstone_irq);
MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
}
static struct irq_chip mainstone_irq_chip = {
.name = "FPGA",
.irq_ack = mainstone_mask_irq,
.irq_mask = mainstone_mask_irq,
.irq_unmask = mainstone_unmask_irq,
};
static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
{
unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
do {
/* clear useless edge notification */
desc->irq_data.chip->irq_ack(&desc->irq_data);
if (likely(pending)) {
irq = MAINSTONE_IRQ(0) + __ffs(pending);
generic_handle_irq(irq);
}
pending = MST_INTSETCLR & mainstone_irq_enabled;
} while (pending);
}
static void __init mainstone_init_irq(void)
{
int irq;
pxa27x_init_irq();
/* setup extra Mainstone irqs */
for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
irq_set_chip_and_handler(irq, &mainstone_irq_chip,
handle_level_irq);
if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
else
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_flags(MAINSTONE_IRQ(8), 0);
set_irq_flags(MAINSTONE_IRQ(12), 0);
MST_INTMSKENA = 0;
MST_INTSETCLR = 0;
irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler);
irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
}
#ifdef CONFIG_PM
static void mainstone_irq_resume(void)
{
MST_INTMSKENA = mainstone_irq_enabled;
}
static struct syscore_ops mainstone_irq_syscore_ops = {
.resume = mainstone_irq_resume,
};
static int __init mainstone_irq_device_init(void)
{
if (machine_is_mainstone())
register_syscore_ops(&mainstone_irq_syscore_ops);
return 0;
}
device_initcall(mainstone_irq_device_init);
#endif
static struct resource smc91x_resources[] = {
[0] = {
.start = (MST_ETH_PHYS + 0x300),
.end = (MST_ETH_PHYS + 0xfffff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = MAINSTONE_IRQ(3),
.end = MAINSTONE_IRQ(3),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
}
};
static struct smc91x_platdata mainstone_smc91x_info = {
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
SMC91X_NOWAIT | SMC91X_USE_DMA,
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
.dev = {
.platform_data = &mainstone_smc91x_info,
},
};
static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
return 0;
}
static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
}
static long mst_audio_suspend_mask;
static void mst_audio_suspend(void *priv)
{
mst_audio_suspend_mask = MST_MSCWR2;
MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
}
static void mst_audio_resume(void *priv)
{
MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
}
static pxa2xx_audio_ops_t mst_audio_ops = {
.startup = mst_audio_startup,
.shutdown = mst_audio_shutdown,
.suspend = mst_audio_suspend,
.resume = mst_audio_resume,
};
static struct resource flash_resources[] = {
[0] = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PXA_CS1_PHYS,
.end = PXA_CS1_PHYS + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
};
static struct mtd_partition mainstoneflash0_partitions[] = {
{
.name = "Bootloader",
.size = 0x00040000,
.offset = 0,
.mask_flags = MTD_WRITEABLE /* force read-only */
},{
.name = "Kernel",
.size = 0x00400000,
.offset = 0x00040000,
},{
.name = "Filesystem",
.size = MTDPART_SIZ_FULL,
.offset = 0x00440000
}
};
static struct flash_platform_data mst_flash_data[2] = {
{
.map_name = "cfi_probe",
.parts = mainstoneflash0_partitions,
.nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
}, {
.map_name = "cfi_probe",
.parts = NULL,
.nr_parts = 0,
}
};
static struct platform_device mst_flash_device[2] = {
{
.name = "pxa2xx-flash",
.id = 0,
.dev = {
.platform_data = &mst_flash_data[0],
},
.resource = &flash_resources[0],
.num_resources = 1,
},
{
.name = "pxa2xx-flash",
.id = 1,
.dev = {
.platform_data = &mst_flash_data[1],
},
.resource = &flash_resources[1],
.num_resources = 1,
},
};
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct platform_pwm_backlight_data mainstone_backlight_data = {
.pwm_id = 0,
.max_brightness = 1023,
.dft_brightness = 1023,
.pwm_period_ns = 78770,
};
static struct platform_device mainstone_backlight_device = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm0.dev,
.platform_data = &mainstone_backlight_data,
},
};
static void __init mainstone_backlight_register(void)
{
int ret = platform_device_register(&mainstone_backlight_device);
if (ret)
printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
}
#else
#define mainstone_backlight_register() do { } while (0)
#endif
static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
.pixclock = 50000,
.xres = 640,
.yres = 480,
.bpp = 16,
.hsync_len = 1,
.left_margin = 0x9f,
.right_margin = 1,
.vsync_len = 44,
.upper_margin = 0,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
};
static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
.pixclock = 110000,
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 4,
.left_margin = 8,
.right_margin = 20,
.vsync_len = 3,
.upper_margin = 1,
.lower_margin = 10,
.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
};
static struct pxafb_mach_info mainstone_pxafb_info = {
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
{
int err;
/* make sure SD/Memory Stick multiplexer's signals
* are routed to MMC controller
*/
MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
"MMC card detect", data);
if (err)
printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
return err;
}
static void mainstone_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", __func__);
MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
} else {
printk(KERN_DEBUG "%s: off\n", __func__);
MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
}
}
static void mainstone_mci_exit(struct device *dev, void *data)
{
free_irq(MAINSTONE_MMC_IRQ, data);
}
static struct pxamci_platform_data mainstone_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = mainstone_mci_init,
.setpower = mainstone_mci_setpower,
.exit = mainstone_mci_exit,
.gpio_card_detect = -1,
.gpio_card_ro = -1,
.gpio_power = -1,
};
static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
{
unsigned long flags;
local_irq_save(flags);
if (mode & IR_SIRMODE) {
MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
} else if (mode & IR_FIRMODE) {
MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
}
pxa2xx_transceiver_mode(dev, mode);
if (mode & IR_OFF) {
MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
} else {
MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
}
local_irq_restore(flags);
}
static struct pxaficp_platform_data mainstone_ficp_platform_data = {
.gpio_pwdown = -1,
.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
.transceiver_mode = mainstone_irda_transceiver_mode,
};
static struct gpio_keys_button gpio_keys_button[] = {
[0] = {
.desc = "wakeup",
.code = KEY_SUSPEND,
.type = EV_KEY,
.gpio = 1,
.wakeup = 1,
},
};
static struct gpio_keys_platform_data mainstone_gpio_keys = {
.buttons = gpio_keys_button,
.nbuttons = 1,
};
static struct platform_device mst_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &mainstone_gpio_keys,
},
};
static struct platform_device *platform_devices[] __initdata = {
&smc91x_device,
&mst_flash_device[0],
&mst_flash_device[1],
&mst_gpio_keys_device,
};
static struct pxaohci_platform_data mainstone_ohci_platform_data = {
.port_mode = PMM_PERPORT_MODE,
.flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
};
#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
static unsigned int mainstone_matrix_keys[] = {
KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
KEY(0, 4, KEY_DOT), /* . */
KEY(1, 4, KEY_CLOSE), /* @ */
KEY(4, 4, KEY_SLASH),
KEY(5, 4, KEY_BACKSLASH),
KEY(0, 5, KEY_HOME),
KEY(1, 5, KEY_LEFTSHIFT),
KEY(2, 5, KEY_SPACE),
KEY(3, 5, KEY_SPACE),
KEY(4, 5, KEY_ENTER),
KEY(5, 5, KEY_BACKSPACE),
KEY(0, 6, KEY_UP),
KEY(1, 6, KEY_DOWN),
KEY(2, 6, KEY_LEFT),
KEY(3, 6, KEY_RIGHT),
KEY(4, 6, KEY_SELECT),
};
struct pxa27x_keypad_platform_data mainstone_keypad_info = {
.matrix_key_rows = 6,
.matrix_key_cols = 7,
.matrix_key_map = mainstone_matrix_keys,
.matrix_key_map_size = ARRAY_SIZE(mainstone_matrix_keys),
.enable_rotary0 = 1,
.rotary0_up_key = KEY_UP,
.rotary0_down_key = KEY_DOWN,
.debounce_interval = 30,
};
static void __init mainstone_init_keypad(void)
{
pxa_set_keypad_info(&mainstone_keypad_info);
}
#else
static inline void mainstone_init_keypad(void) {}
#endif
static void __init mainstone_init(void)
{
int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
mst_flash_data[1].width = 4;
/* Compensate for SW7 which swaps the flash banks */
mst_flash_data[SW7].name = "processor-flash";
mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
mst_flash_data[0].name);
/* system bus arbiter setting
* - Core_Park
* - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
*/
ARB_CNTRL = ARB_CORE_PARK | 0x234;
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
/* reading Mainstone's "Virtual Configuration Register"
might be handy to select LCD type here */
if (0)
mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
else
mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
pxa_set_fb_info(NULL, &mainstone_pxafb_info);
mainstone_backlight_register();
pxa_set_mci_info(&mainstone_mci_platform_data);
pxa_set_ficp_info(&mainstone_ficp_platform_data);
pxa_set_ohci_info(&mainstone_ohci_platform_data);
pxa_set_i2c_info(NULL);
pxa_set_ac97_info(&mst_audio_ops);
mainstone_init_keypad();
}
static struct map_desc mainstone_io_desc[] __initdata = {
{ /* CPLD */
.virtual = MST_FPGA_VIRT,
.pfn = __phys_to_pfn(MST_FPGA_PHYS),
.length = 0x00100000,
.type = MT_DEVICE
}
};
static void __init mainstone_map_io(void)
{
pxa27x_map_io();
iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
/* for use I SRAM as framebuffer. */
PSLR |= 0xF04;
PCFR = 0x66;
}
MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
/* Maintainer: MontaVista Software Inc. */
.atag_offset = 0x100, /* BLOB boot parameter setting */
.map_io = mainstone_map_io,
.nr_irqs = MAINSTONE_NR_IRQS,
.init_irq = mainstone_init_irq,
.handle_irq = pxa27x_handle_irq,
.timer = &pxa_timer,
.init_machine = mainstone_init,
.restart = pxa_restart,
MACHINE_END