/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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_devs[] __initdata = { NULL, /* PSC0, selected by S6.8 */ &db1200_ide_dev, &db1200_eth_dev, &db1200_rtc_dev, &db1200_nand_dev, &db1200_audio_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; }