| /* |
| * 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, |
| } |
| }; |
| |
| 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, |
| }; |
| |
| /* needed by arch/mips/alchemy/common/platform.c */ |
| struct au1xmmc_platform_data au1xmmc_platdata[] = { |
| [0] = { |
| .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_psc0_res[] = { |
| [0] = { |
| .start = PSC0_PHYS_ADDR, |
| .end = PSC0_PHYS_ADDR + 0x000fffff, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = AU1200_PSC0_INT, |
| .end = AU1200_PSC0_INT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| [2] = { |
| .start = DSCR_CMD0_PSC0_TX, |
| .end = DSCR_CMD0_PSC0_TX, |
| .flags = IORESOURCE_DMA, |
| }, |
| [3] = { |
| .start = DSCR_CMD0_PSC0_RX, |
| .end = 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 = PSC1_PHYS_ADDR, |
| .end = PSC1_PHYS_ADDR + 0x000fffff, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = AU1200_PSC1_INT, |
| .end = AU1200_PSC1_INT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| [2] = { |
| .start = DSCR_CMD0_PSC1_TX, |
| .end = DSCR_CMD0_PSC1_TX, |
| .flags = IORESOURCE_DMA, |
| }, |
| [3] = { |
| .start = DSCR_CMD0_PSC1_RX, |
| .end = DSCR_CMD0_PSC1_RX, |
| .flags = IORESOURCE_DMA, |
| }, |
| }; |
| |
| 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, |
| }; |
| |
| 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_eth_dev, |
| &db1200_rtc_dev, |
| &db1200_nand_dev, |
| &db1200_audiodma_dev, |
| &db1200_audio_dev, |
| &db1200_stac_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"; |
| 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"; |
| 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(PSC1_PHYS_ADDR) + PSC_SEL_OFFSET); |
| wmb(); |
| |
| db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR, |
| PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, |
| PCMCIA_MEM_PHYS_ADDR, |
| PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, |
| PCMCIA_IO_PHYS_ADDR, |
| 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(PCMCIA_ATTR_PHYS_ADDR + 0x004000000, |
| PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, |
| PCMCIA_MEM_PHYS_ADDR + 0x004000000, |
| PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, |
| PCMCIA_IO_PHYS_ADDR + 0x004000000, |
| 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; |
| } |