diff options
Diffstat (limited to 'arch/mips/alchemy/devboards/db1200/platform.c')
| -rw-r--r-- | arch/mips/alchemy/devboards/db1200/platform.c | 648 |
1 files changed, 0 insertions, 648 deletions
diff --git a/arch/mips/alchemy/devboards/db1200/platform.c b/arch/mips/alchemy/devboards/db1200/platform.c deleted file mode 100644 index c61867c93c4..00000000000 --- a/arch/mips/alchemy/devboards/db1200/platform.c +++ /dev/null @@ -1,648 +0,0 @@ -/* - * DBAu1200 board platform device registration - * - * Copyright (C) 2008-2009 Manuel Lauss - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/dma-mapping.h> -#include <linux/gpio.h> -#include <linux/i2c.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/leds.h> -#include <linux/mmc/host.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/nand.h> -#include <linux/mtd/partitions.h> -#include <linux/platform_device.h> -#include <linux/serial_8250.h> -#include <linux/spi/spi.h> -#include <linux/spi/flash.h> -#include <linux/smc91x.h> - -#include <asm/mach-au1x00/au1100_mmc.h> -#include <asm/mach-au1x00/au1xxx_dbdma.h> -#include <asm/mach-au1x00/au1550_spi.h> -#include <asm/mach-db1x00/bcsr.h> -#include <asm/mach-db1x00/db1200.h> - -#include "../platform.h" - -static struct mtd_partition db1200_spiflash_parts[] = { - { - .name = "DB1200 SPI flash", - .offset = 0, - .size = MTDPART_SIZ_FULL, - }, -}; - -static struct flash_platform_data db1200_spiflash_data = { - .name = "s25fl001", - .parts = db1200_spiflash_parts, - .nr_parts = ARRAY_SIZE(db1200_spiflash_parts), - .type = "m25p10", -}; - -static struct spi_board_info db1200_spi_devs[] __initdata = { - { - /* TI TMP121AIDBVR temp sensor */ - .modalias = "tmp121", - .max_speed_hz = 2000000, - .bus_num = 0, - .chip_select = 0, - .mode = 0, - }, - { - /* Spansion S25FL001D0FMA SPI flash */ - .modalias = "m25p80", - .max_speed_hz = 50000000, - .bus_num = 0, - .chip_select = 1, - .mode = 0, - .platform_data = &db1200_spiflash_data, - }, -}; - -static struct i2c_board_info db1200_i2c_devs[] __initdata = { - { - /* AT24C04-10 I2C eeprom */ - I2C_BOARD_INFO("24c04", 0x52), - }, - { - /* Philips NE1619 temp/voltage sensor (adm1025 drv) */ - I2C_BOARD_INFO("ne1619", 0x2d), - }, - { - /* I2S audio codec WM8731 */ - I2C_BOARD_INFO("wm8731", 0x1b), - }, -}; - -/**********************************************************************/ - -static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, - unsigned int ctrl) -{ - struct nand_chip *this = mtd->priv; - unsigned long ioaddr = (unsigned long)this->IO_ADDR_W; - - ioaddr &= 0xffffff00; - - if (ctrl & NAND_CLE) { - ioaddr += MEM_STNAND_CMD; - } else if (ctrl & NAND_ALE) { - ioaddr += MEM_STNAND_ADDR; - } else { - /* assume we want to r/w real data by default */ - ioaddr += MEM_STNAND_DATA; - } - this->IO_ADDR_R = this->IO_ADDR_W = (void __iomem *)ioaddr; - if (cmd != NAND_CMD_NONE) { - __raw_writeb(cmd, this->IO_ADDR_W); - wmb(); - } -} - -static int au1200_nand_device_ready(struct mtd_info *mtd) -{ - return __raw_readl((void __iomem *)MEM_STSTAT) & 1; -} - -static const char *db1200_part_probes[] = { "cmdlinepart", NULL }; - -static struct mtd_partition db1200_nand_parts[] = { - { - .name = "NAND FS 0", - .offset = 0, - .size = 8 * 1024 * 1024, - }, - { - .name = "NAND FS 1", - .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL - }, -}; - -struct platform_nand_data db1200_nand_platdata = { - .chip = { - .nr_chips = 1, - .chip_offset = 0, - .nr_partitions = ARRAY_SIZE(db1200_nand_parts), - .partitions = db1200_nand_parts, - .chip_delay = 20, - .part_probe_types = db1200_part_probes, - }, - .ctrl = { - .dev_ready = au1200_nand_device_ready, - .cmd_ctrl = au1200_nand_cmd_ctrl, - }, -}; - -static struct resource db1200_nand_res[] = { - [0] = { - .start = DB1200_NAND_PHYS_ADDR, - .end = DB1200_NAND_PHYS_ADDR + 0xff, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device db1200_nand_dev = { - .name = "gen_nand", - .num_resources = ARRAY_SIZE(db1200_nand_res), - .resource = db1200_nand_res, - .id = -1, - .dev = { - .platform_data = &db1200_nand_platdata, - } -}; - -/**********************************************************************/ - -static struct smc91x_platdata db1200_eth_data = { - .flags = SMC91X_NOWAIT | SMC91X_USE_16BIT, - .leda = RPC_LED_100_10, - .ledb = RPC_LED_TX_RX, -}; - -static struct resource db1200_eth_res[] = { - [0] = { - .start = DB1200_ETH_PHYS_ADDR, - .end = DB1200_ETH_PHYS_ADDR + 0xf, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = DB1200_ETH_INT, - .end = DB1200_ETH_INT, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device db1200_eth_dev = { - .dev = { - .platform_data = &db1200_eth_data, - }, - .name = "smc91x", - .id = -1, - .num_resources = ARRAY_SIZE(db1200_eth_res), - .resource = db1200_eth_res, -}; - -/**********************************************************************/ - -static struct resource db1200_ide_res[] = { - [0] = { - .start = DB1200_IDE_PHYS_ADDR, - .end = DB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = DB1200_IDE_INT, - .end = DB1200_IDE_INT, - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = AU1200_DSCR_CMD0_DMA_REQ1, - .end = AU1200_DSCR_CMD0_DMA_REQ1, - .flags = IORESOURCE_DMA, - }, -}; - -static u64 ide_dmamask = DMA_BIT_MASK(32); - -static struct platform_device db1200_ide_dev = { - .name = "au1200-ide", - .id = 0, - .dev = { - .dma_mask = &ide_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .num_resources = ARRAY_SIZE(db1200_ide_res), - .resource = db1200_ide_res, -}; - -/**********************************************************************/ - -static struct platform_device db1200_rtc_dev = { - .name = "rtc-au1xxx", - .id = -1, -}; - -/**********************************************************************/ - -/* SD carddetects: they're supposed to be edge-triggered, but ack - * doesn't seem to work (CPLD Rev 2). Instead, the screaming one - * is disabled and its counterpart enabled. The 500ms timeout is - * because the carddetect isn't debounced in hardware. - */ -static irqreturn_t db1200_mmc_cd(int irq, void *ptr) -{ - void(*mmc_cd)(struct mmc_host *, unsigned long); - - if (irq == DB1200_SD0_INSERT_INT) { - disable_irq_nosync(DB1200_SD0_INSERT_INT); - enable_irq(DB1200_SD0_EJECT_INT); - } else { - disable_irq_nosync(DB1200_SD0_EJECT_INT); - enable_irq(DB1200_SD0_INSERT_INT); - } - - /* link against CONFIG_MMC=m */ - mmc_cd = symbol_get(mmc_detect_change); - if (mmc_cd) { - mmc_cd(ptr, msecs_to_jiffies(500)); - symbol_put(mmc_detect_change); - } - - return IRQ_HANDLED; -} - -static int db1200_mmc_cd_setup(void *mmc_host, int en) -{ - int ret; - - if (en) { - ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd, - IRQF_DISABLED, "sd_insert", mmc_host); - if (ret) - goto out; - - ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd, - IRQF_DISABLED, "sd_eject", mmc_host); - if (ret) { - free_irq(DB1200_SD0_INSERT_INT, mmc_host); - goto out; - } - - if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) - enable_irq(DB1200_SD0_EJECT_INT); - else - enable_irq(DB1200_SD0_INSERT_INT); - - } else { - free_irq(DB1200_SD0_INSERT_INT, mmc_host); - free_irq(DB1200_SD0_EJECT_INT, mmc_host); - } - ret = 0; -out: - return ret; -} - -static void db1200_mmc_set_power(void *mmc_host, int state) -{ - if (state) { - bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR); - msleep(400); /* stabilization time */ - } else - bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0); -} - -static int db1200_mmc_card_readonly(void *mmc_host) -{ - return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0; -} - -static int db1200_mmc_card_inserted(void *mmc_host) -{ - return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0; -} - -static void db1200_mmcled_set(struct led_classdev *led, - enum led_brightness brightness) -{ - if (brightness != LED_OFF) - bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0); - else - bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0); -} - -static struct led_classdev db1200_mmc_led = { - .brightness_set = db1200_mmcled_set, -}; - -static struct au1xmmc_platform_data db1200mmc_platdata = { - .cd_setup = db1200_mmc_cd_setup, - .set_power = db1200_mmc_set_power, - .card_inserted = db1200_mmc_card_inserted, - .card_readonly = db1200_mmc_card_readonly, - .led = &db1200_mmc_led, -}; - -static struct resource au1200_mmc0_resources[] = { - [0] = { - .start = AU1100_SD0_PHYS_ADDR, - .end = AU1100_SD0_PHYS_ADDR + 0xfff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = AU1200_SD_INT, - .end = AU1200_SD_INT, - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = AU1200_DSCR_CMD0_SDMS_TX0, - .end = AU1200_DSCR_CMD0_SDMS_TX0, - .flags = IORESOURCE_DMA, - }, - [3] = { - .start = AU1200_DSCR_CMD0_SDMS_RX0, - .end = AU1200_DSCR_CMD0_SDMS_RX0, - .flags = IORESOURCE_DMA, - } -}; - -static u64 au1xxx_mmc_dmamask = DMA_BIT_MASK(32); - -static struct platform_device db1200_mmc0_dev = { - .name = "au1xxx-mmc", - .id = 0, - .dev = { - .dma_mask = &au1xxx_mmc_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - .platform_data = &db1200mmc_platdata, - }, - .num_resources = ARRAY_SIZE(au1200_mmc0_resources), - .resource = au1200_mmc0_resources, -}; - -/**********************************************************************/ - -static struct resource au1200_lcd_res[] = { - [0] = { - .start = AU1200_LCD_PHYS_ADDR, - .end = AU1200_LCD_PHYS_ADDR + 0x800 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = AU1200_LCD_INT, - .end = AU1200_LCD_INT, - .flags = IORESOURCE_IRQ, - } -}; - -static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32); - -static struct platform_device au1200_lcd_dev = { - .name = "au1200-lcd", - .id = 0, - .dev = { - .dma_mask = &au1200_lcd_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .num_resources = ARRAY_SIZE(au1200_lcd_res), - .resource = au1200_lcd_res, -}; - -/**********************************************************************/ - -static struct resource au1200_psc0_res[] = { - [0] = { - .start = AU1550_PSC0_PHYS_ADDR, - .end = AU1550_PSC0_PHYS_ADDR + 0xfff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = AU1200_PSC0_INT, - .end = AU1200_PSC0_INT, - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = AU1200_DSCR_CMD0_PSC0_TX, - .end = AU1200_DSCR_CMD0_PSC0_TX, - .flags = IORESOURCE_DMA, - }, - [3] = { - .start = AU1200_DSCR_CMD0_PSC0_RX, - .end = AU1200_DSCR_CMD0_PSC0_RX, - .flags = IORESOURCE_DMA, - }, -}; - -static struct platform_device db1200_i2c_dev = { - .name = "au1xpsc_smbus", - .id = 0, /* bus number */ - .num_resources = ARRAY_SIZE(au1200_psc0_res), - .resource = au1200_psc0_res, -}; - -static void db1200_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol) -{ - if (cs) - bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_SPISEL); - else - bcsr_mod(BCSR_RESETS, BCSR_RESETS_SPISEL, 0); -} - -static struct au1550_spi_info db1200_spi_platdata = { - .mainclk_hz = 50000000, /* PSC0 clock */ - .num_chipselect = 2, - .activate_cs = db1200_spi_cs_en, -}; - -static u64 spi_dmamask = DMA_BIT_MASK(32); - -static struct platform_device db1200_spi_dev = { - .dev = { - .dma_mask = &spi_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - .platform_data = &db1200_spi_platdata, - }, - .name = "au1550-spi", - .id = 0, /* bus number */ - .num_resources = ARRAY_SIZE(au1200_psc0_res), - .resource = au1200_psc0_res, -}; - -static struct resource au1200_psc1_res[] = { - [0] = { - .start = AU1550_PSC1_PHYS_ADDR, - .end = AU1550_PSC1_PHYS_ADDR + 0xfff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = AU1200_PSC1_INT, - .end = AU1200_PSC1_INT, - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = AU1200_DSCR_CMD0_PSC1_TX, - .end = AU1200_DSCR_CMD0_PSC1_TX, - .flags = IORESOURCE_DMA, - }, - [3] = { - .start = AU1200_DSCR_CMD0_PSC1_RX, - .end = AU1200_DSCR_CMD0_PSC1_RX, - .flags = IORESOURCE_DMA, - }, -}; - -/* AC97 or I2S device */ -static struct platform_device db1200_audio_dev = { - /* name assigned later based on switch setting */ - .id = 1, /* PSC ID */ - .num_resources = ARRAY_SIZE(au1200_psc1_res), - .resource = au1200_psc1_res, -}; - -/* DB1200 ASoC card device */ -static struct platform_device db1200_sound_dev = { - /* name assigned later based on switch setting */ - .id = 1, /* PSC ID */ -}; - -static struct platform_device db1200_stac_dev = { - .name = "ac97-codec", - .id = 1, /* on PSC1 */ -}; - -static struct platform_device db1200_audiodma_dev = { - .name = "au1xpsc-pcm", - .id = 1, /* PSC ID */ -}; - -static struct platform_device *db1200_devs[] __initdata = { - NULL, /* PSC0, selected by S6.8 */ - &db1200_ide_dev, - &db1200_mmc0_dev, - &au1200_lcd_dev, - &db1200_eth_dev, - &db1200_rtc_dev, - &db1200_nand_dev, - &db1200_audiodma_dev, - &db1200_audio_dev, - &db1200_stac_dev, - &db1200_sound_dev, -}; - -static int __init db1200_dev_init(void) -{ - unsigned long pfc; - unsigned short sw; - int swapped; - - i2c_register_board_info(0, db1200_i2c_devs, - ARRAY_SIZE(db1200_i2c_devs)); - spi_register_board_info(db1200_spi_devs, - ARRAY_SIZE(db1200_i2c_devs)); - - /* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI) - * S6.7 AC97/I2S selector (OFF=AC97 ON=I2S) - */ - - /* NOTE: GPIO215 controls OTG VBUS supply. In SPI mode however - * this pin is claimed by PSC0 (unused though, but pinmux doesn't - * allow to free it without crippling the SPI interface). - * As a result, in SPI mode, OTG simply won't work (PSC0 uses - * it as an input pin which is pulled high on the boards). - */ - pfc = __raw_readl((void __iomem *)SYS_PINFUNC) & ~SYS_PINFUNC_P0A; - - /* switch off OTG VBUS supply */ - gpio_request(215, "otg-vbus"); - gpio_direction_output(215, 1); - - printk(KERN_INFO "DB1200 device configuration:\n"); - - sw = bcsr_read(BCSR_SWITCHES); - if (sw & BCSR_SWITCHES_DIP_8) { - db1200_devs[0] = &db1200_i2c_dev; - bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0); - - pfc |= (2 << 17); /* GPIO2 block owns GPIO215 */ - - printk(KERN_INFO " S6.8 OFF: PSC0 mode I2C\n"); - printk(KERN_INFO " OTG port VBUS supply available!\n"); - } else { - db1200_devs[0] = &db1200_spi_dev; - bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC0MUX); - - pfc |= (1 << 17); /* PSC0 owns GPIO215 */ - - printk(KERN_INFO " S6.8 ON : PSC0 mode SPI\n"); - printk(KERN_INFO " OTG port VBUS supply disabled\n"); - } - __raw_writel(pfc, (void __iomem *)SYS_PINFUNC); - wmb(); - - /* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S! - * so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S - */ - sw &= BCSR_SWITCHES_DIP_8 | BCSR_SWITCHES_DIP_7; - if (sw == BCSR_SWITCHES_DIP_8) { - bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC1MUX); - db1200_audio_dev.name = "au1xpsc_i2s"; - db1200_sound_dev.name = "db1200-i2s"; - printk(KERN_INFO " S6.7 ON : PSC1 mode I2S\n"); - } else { - bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC1MUX, 0); - db1200_audio_dev.name = "au1xpsc_ac97"; - db1200_sound_dev.name = "db1200-ac97"; - printk(KERN_INFO " S6.7 OFF: PSC1 mode AC97\n"); - } - - /* Audio PSC clock is supplied externally. (FIXME: platdata!!) */ - __raw_writel(PSC_SEL_CLK_SERCLK, - (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET); - wmb(); - - db1x_register_pcmcia_socket( - AU1000_PCMCIA_ATTR_PHYS_ADDR, - AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, - AU1000_PCMCIA_MEM_PHYS_ADDR, - AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, - AU1000_PCMCIA_IO_PHYS_ADDR, - AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, - DB1200_PC0_INT, DB1200_PC0_INSERT_INT, - /*DB1200_PC0_STSCHG_INT*/0, DB1200_PC0_EJECT_INT, 0); - - db1x_register_pcmcia_socket( - AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000, - AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, - AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000, - AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, - AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000, - AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1, - DB1200_PC1_INT, DB1200_PC1_INSERT_INT, - /*DB1200_PC1_STSCHG_INT*/0, DB1200_PC1_EJECT_INT, 1); - - swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT; - db1x_register_norflash(64 << 20, 2, swapped); - - return platform_add_devices(db1200_devs, ARRAY_SIZE(db1200_devs)); -} -device_initcall(db1200_dev_init); - -/* au1200fb calls these: STERBT EINEN TRAGISCHEN TOD!!! */ -int board_au1200fb_panel(void) -{ - return (bcsr_read(BCSR_SWITCHES) >> 8) & 0x0f; -} - -int board_au1200fb_panel_init(void) -{ - /* Apply power */ - bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | - BCSR_BOARD_LCDBL); - return 0; -} - -int board_au1200fb_panel_shutdown(void) -{ - /* Remove power */ - bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | - BCSR_BOARD_LCDBL, 0); - return 0; -} |