680 lines
16 KiB
C
680 lines
16 KiB
C
/*
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* linux/arch/arm/mach-pxa/mainstone.c
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*
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* Support for the Intel HCDDBBVA0 Development Platform.
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* (go figure how they came up with such name...)
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*
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* Author: Nicolas Pitre
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* Created: Nov 05, 2002
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* Copyright: MontaVista Software Inc.
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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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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/syscore_ops.h>
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#include <linux/interrupt.h>
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#include <linux/sched.h>
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#include <linux/bitops.h>
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#include <linux/fb.h>
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#include <linux/ioport.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/pwm.h>
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#include <linux/pwm_backlight.h>
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#include <linux/smc91x.h>
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#include <linux/i2c/pxa-i2c.h>
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#include <linux/slab.h>
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#include <linux/leds.h>
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#include <asm/types.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 <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/sizes.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/mach/flash.h>
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#include "pxa27x.h"
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#include <mach/mainstone.h>
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#include <mach/audio.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/platform_data/irda-pxaficp.h>
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#include <linux/platform_data/usb-ohci-pxa27x.h>
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#include <linux/platform_data/keypad-pxa27x.h>
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#include <mach/smemc.h>
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#include "generic.h"
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#include "devices.h"
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static unsigned long mainstone_pin_config[] = {
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/* Chip Select */
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GPIO15_nCS_1,
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/* LCD - 16bpp Active TFT */
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GPIOxx_LCD_TFT_16BPP,
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GPIO16_PWM0_OUT, /* Backlight */
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/* MMC */
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GPIO32_MMC_CLK,
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GPIO112_MMC_CMD,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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/* USB Host Port 1 */
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GPIO88_USBH1_PWR,
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GPIO89_USBH1_PEN,
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/* PC Card */
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GPIO48_nPOE,
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GPIO49_nPWE,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO85_nPCE_1,
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GPIO54_nPCE_2,
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GPIO79_PSKTSEL,
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GPIO55_nPREG,
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GPIO56_nPWAIT,
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GPIO57_nIOIS16,
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO45_AC97_SYSCLK,
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/* Keypad */
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GPIO93_KP_DKIN_0,
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GPIO94_KP_DKIN_1,
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GPIO95_KP_DKIN_2,
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GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
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GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
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GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
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GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
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GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
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GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
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GPIO103_KP_MKOUT_0,
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GPIO104_KP_MKOUT_1,
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GPIO105_KP_MKOUT_2,
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GPIO106_KP_MKOUT_3,
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GPIO107_KP_MKOUT_4,
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GPIO108_KP_MKOUT_5,
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GPIO96_KP_MKOUT_6,
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/* I2C */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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/* GPIO */
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GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
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};
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static struct resource smc91x_resources[] = {
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[0] = {
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.start = (MST_ETH_PHYS + 0x300),
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.end = (MST_ETH_PHYS + 0xfffff),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = MAINSTONE_IRQ(3),
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.end = MAINSTONE_IRQ(3),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct smc91x_platdata mainstone_smc91x_info = {
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.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
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SMC91X_NOWAIT | SMC91X_USE_DMA,
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.pxa_u16_align4 = true,
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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.dev = {
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.platform_data = &mainstone_smc91x_info,
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},
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};
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static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
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{
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
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return 0;
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}
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static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
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{
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
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}
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static long mst_audio_suspend_mask;
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static void mst_audio_suspend(void *priv)
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{
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mst_audio_suspend_mask = MST_MSCWR2;
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MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
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}
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static void mst_audio_resume(void *priv)
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{
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MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
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}
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static pxa2xx_audio_ops_t mst_audio_ops = {
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.startup = mst_audio_startup,
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.shutdown = mst_audio_shutdown,
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.suspend = mst_audio_suspend,
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.resume = mst_audio_resume,
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};
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static struct resource flash_resources[] = {
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[0] = {
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.start = PXA_CS0_PHYS,
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.end = PXA_CS0_PHYS + SZ_64M - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_CS1_PHYS,
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.end = PXA_CS1_PHYS + SZ_64M - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct mtd_partition mainstoneflash0_partitions[] = {
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{
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.name = "Bootloader",
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.size = 0x00040000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE /* force read-only */
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},{
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.name = "Kernel",
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.size = 0x00400000,
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.offset = 0x00040000,
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},{
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.name = "Filesystem",
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.size = MTDPART_SIZ_FULL,
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.offset = 0x00440000
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}
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};
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static struct flash_platform_data mst_flash_data[2] = {
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{
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.map_name = "cfi_probe",
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.parts = mainstoneflash0_partitions,
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.nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
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}, {
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.map_name = "cfi_probe",
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.parts = NULL,
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.nr_parts = 0,
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}
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};
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static struct platform_device mst_flash_device[2] = {
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{
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.name = "pxa2xx-flash",
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.id = 0,
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.dev = {
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.platform_data = &mst_flash_data[0],
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},
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.resource = &flash_resources[0],
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.num_resources = 1,
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},
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{
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.name = "pxa2xx-flash",
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.id = 1,
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.dev = {
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.platform_data = &mst_flash_data[1],
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},
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.resource = &flash_resources[1],
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.num_resources = 1,
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},
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};
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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static struct pwm_lookup mainstone_pwm_lookup[] = {
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PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
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PWM_POLARITY_NORMAL),
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};
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static struct platform_pwm_backlight_data mainstone_backlight_data = {
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.max_brightness = 1023,
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.dft_brightness = 1023,
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.enable_gpio = -1,
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};
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static struct platform_device mainstone_backlight_device = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa27x_device_pwm0.dev,
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.platform_data = &mainstone_backlight_data,
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},
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};
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static void __init mainstone_backlight_register(void)
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{
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int ret;
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pwm_add_table(mainstone_pwm_lookup, ARRAY_SIZE(mainstone_pwm_lookup));
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ret = platform_device_register(&mainstone_backlight_device);
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if (ret) {
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printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
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pwm_remove_table(mainstone_pwm_lookup,
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ARRAY_SIZE(mainstone_pwm_lookup));
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}
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}
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#else
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#define mainstone_backlight_register() do { } while (0)
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#endif
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static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
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.pixclock = 50000,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.hsync_len = 1,
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.left_margin = 0x9f,
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.right_margin = 1,
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.vsync_len = 44,
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.upper_margin = 0,
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.lower_margin = 0,
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.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
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.pixclock = 110000,
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.xres = 240,
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.yres = 320,
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.bpp = 16,
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.hsync_len = 4,
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.left_margin = 8,
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.right_margin = 20,
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.vsync_len = 3,
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.upper_margin = 1,
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.lower_margin = 10,
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.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
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};
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static struct pxafb_mach_info mainstone_pxafb_info = {
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
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};
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static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
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{
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int err;
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/* make sure SD/Memory Stick multiplexer's signals
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* are routed to MMC controller
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*/
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MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
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err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, 0,
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"MMC card detect", data);
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if (err)
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printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
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return err;
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}
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static int mainstone_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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printk(KERN_DEBUG "%s: on\n", __func__);
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MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
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MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
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} else {
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printk(KERN_DEBUG "%s: off\n", __func__);
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MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
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}
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return 0;
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}
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static void mainstone_mci_exit(struct device *dev, void *data)
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{
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free_irq(MAINSTONE_MMC_IRQ, data);
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}
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static struct pxamci_platform_data mainstone_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = mainstone_mci_init,
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.setpower = mainstone_mci_setpower,
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.exit = mainstone_mci_exit,
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.gpio_card_detect = -1,
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.gpio_card_ro = -1,
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.gpio_power = -1,
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};
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static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
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{
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unsigned long flags;
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local_irq_save(flags);
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if (mode & IR_SIRMODE) {
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MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
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} else if (mode & IR_FIRMODE) {
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MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
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}
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pxa2xx_transceiver_mode(dev, mode);
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if (mode & IR_OFF) {
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MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
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} else {
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MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
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}
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local_irq_restore(flags);
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}
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static struct pxaficp_platform_data mainstone_ficp_platform_data = {
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.gpio_pwdown = -1,
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.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
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.transceiver_mode = mainstone_irda_transceiver_mode,
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};
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static struct gpio_keys_button gpio_keys_button[] = {
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[0] = {
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.desc = "wakeup",
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.code = KEY_SUSPEND,
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.type = EV_KEY,
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.gpio = 1,
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data mainstone_gpio_keys = {
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.buttons = gpio_keys_button,
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.nbuttons = 1,
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};
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static struct platform_device mst_gpio_keys_device = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &mainstone_gpio_keys,
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},
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};
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static struct resource mst_cplds_resources[] = {
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[0] = {
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.start = MST_FPGA_PHYS + 0xc0,
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.end = MST_FPGA_PHYS + 0xe0 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_GPIO_TO_IRQ(0),
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.end = PXA_GPIO_TO_IRQ(0),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
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},
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[2] = {
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.start = MAINSTONE_IRQ(0),
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.end = MAINSTONE_IRQ(15),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device mst_cplds_device = {
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.name = "pxa_cplds_irqs",
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.id = -1,
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.resource = &mst_cplds_resources[0],
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.num_resources = 3,
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};
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static struct platform_device *platform_devices[] __initdata = {
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&smc91x_device,
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&mst_flash_device[0],
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&mst_flash_device[1],
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&mst_gpio_keys_device,
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&mst_cplds_device,
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};
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static struct pxaohci_platform_data mainstone_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
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};
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#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
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static const unsigned int mainstone_matrix_keys[] = {
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KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
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KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
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KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
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KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
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KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
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KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
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KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
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KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
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KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
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KEY(0, 4, KEY_DOT), /* . */
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KEY(1, 4, KEY_CLOSE), /* @ */
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KEY(4, 4, KEY_SLASH),
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KEY(5, 4, KEY_BACKSLASH),
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KEY(0, 5, KEY_HOME),
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KEY(1, 5, KEY_LEFTSHIFT),
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KEY(2, 5, KEY_SPACE),
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KEY(3, 5, KEY_SPACE),
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KEY(4, 5, KEY_ENTER),
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KEY(5, 5, KEY_BACKSPACE),
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KEY(0, 6, KEY_UP),
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KEY(1, 6, KEY_DOWN),
|
|
KEY(2, 6, KEY_LEFT),
|
|
KEY(3, 6, KEY_RIGHT),
|
|
KEY(4, 6, KEY_SELECT),
|
|
};
|
|
|
|
static struct matrix_keymap_data mainstone_matrix_keymap_data = {
|
|
.keymap = mainstone_matrix_keys,
|
|
.keymap_size = ARRAY_SIZE(mainstone_matrix_keys),
|
|
};
|
|
|
|
struct pxa27x_keypad_platform_data mainstone_keypad_info = {
|
|
.matrix_key_rows = 6,
|
|
.matrix_key_cols = 7,
|
|
.matrix_keymap_data = &mainstone_matrix_keymap_data,
|
|
|
|
.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;
|
|
}
|
|
|
|
/*
|
|
* Driver for the 8 discrete LEDs available for general use:
|
|
* Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
|
|
* so be sure to not monkey with them here.
|
|
*/
|
|
|
|
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
|
|
struct mainstone_led {
|
|
struct led_classdev cdev;
|
|
u8 mask;
|
|
};
|
|
|
|
/*
|
|
* The triggers lines up below will only be used if the
|
|
* LED triggers are compiled in.
|
|
*/
|
|
static const struct {
|
|
const char *name;
|
|
const char *trigger;
|
|
} mainstone_leds[] = {
|
|
{ "mainstone:D28", "default-on", },
|
|
{ "mainstone:D27", "cpu0", },
|
|
{ "mainstone:D26", "heartbeat" },
|
|
{ "mainstone:D25", },
|
|
{ "mainstone:D24", },
|
|
{ "mainstone:D23", },
|
|
{ "mainstone:D22", },
|
|
{ "mainstone:D21", },
|
|
};
|
|
|
|
static void mainstone_led_set(struct led_classdev *cdev,
|
|
enum led_brightness b)
|
|
{
|
|
struct mainstone_led *led = container_of(cdev,
|
|
struct mainstone_led, cdev);
|
|
u32 reg = MST_LEDCTRL;
|
|
|
|
if (b != LED_OFF)
|
|
reg |= led->mask;
|
|
else
|
|
reg &= ~led->mask;
|
|
|
|
MST_LEDCTRL = reg;
|
|
}
|
|
|
|
static enum led_brightness mainstone_led_get(struct led_classdev *cdev)
|
|
{
|
|
struct mainstone_led *led = container_of(cdev,
|
|
struct mainstone_led, cdev);
|
|
u32 reg = MST_LEDCTRL;
|
|
|
|
return (reg & led->mask) ? LED_FULL : LED_OFF;
|
|
}
|
|
|
|
static int __init mainstone_leds_init(void)
|
|
{
|
|
int i;
|
|
|
|
if (!machine_is_mainstone())
|
|
return -ENODEV;
|
|
|
|
/* All ON */
|
|
MST_LEDCTRL |= 0xff;
|
|
for (i = 0; i < ARRAY_SIZE(mainstone_leds); i++) {
|
|
struct mainstone_led *led;
|
|
|
|
led = kzalloc(sizeof(*led), GFP_KERNEL);
|
|
if (!led)
|
|
break;
|
|
|
|
led->cdev.name = mainstone_leds[i].name;
|
|
led->cdev.brightness_set = mainstone_led_set;
|
|
led->cdev.brightness_get = mainstone_led_get;
|
|
led->cdev.default_trigger = mainstone_leds[i].trigger;
|
|
led->mask = BIT(i);
|
|
|
|
if (led_classdev_register(NULL, &led->cdev) < 0) {
|
|
kfree(led);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Since we may have triggers on any subsystem, defer registration
|
|
* until after subsystem_init.
|
|
*/
|
|
fs_initcall(mainstone_leds_init);
|
|
#endif
|
|
|
|
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 = pxa27x_init_irq,
|
|
.handle_irq = pxa27x_handle_irq,
|
|
.init_time = pxa_timer_init,
|
|
.init_machine = mainstone_init,
|
|
.restart = pxa_restart,
|
|
MACHINE_END
|