// SPDX-License-Identifier: GPL-2.0-or-later /* * DBAu1000/1500/1100 PBAu1100/1500 board support * * Copyright 2000, 2008 MontaVista Software Inc. * Author: MontaVista Software, Inc. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "platform.h" #define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT) const char *get_system_type(void); int __init db1000_board_setup(void) { /* initialize board register space */ bcsr_init(DB1000_BCSR_PHYS_ADDR, DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS); switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) { case BCSR_WHOAMI_DB1000: case BCSR_WHOAMI_DB1500: case BCSR_WHOAMI_DB1100: case BCSR_WHOAMI_PB1500: case BCSR_WHOAMI_PB1500R2: case BCSR_WHOAMI_PB1100: pr_info("AMD Alchemy %s Board\n", get_system_type()); return 0; } return -ENODEV; } static int db1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin) { if ((slot < 12) || (slot > 13) || pin == 0) return -1; if (slot == 12) return (pin == 1) ? AU1500_PCI_INTA : 0xff; if (slot == 13) { switch (pin) { case 1: return AU1500_PCI_INTA; case 2: return AU1500_PCI_INTB; case 3: return AU1500_PCI_INTC; case 4: return AU1500_PCI_INTD; } } return -1; } static u64 au1xxx_all_dmamask = DMA_BIT_MASK(32); static struct resource alchemy_pci_host_res[] = { [0] = { .start = AU1500_PCI_PHYS_ADDR, .end = AU1500_PCI_PHYS_ADDR + 0xfff, .flags = IORESOURCE_MEM, }, }; static struct alchemy_pci_platdata db1500_pci_pd = { .board_map_irq = db1500_map_pci_irq, }; static struct platform_device db1500_pci_host_dev = { .dev.platform_data = &db1500_pci_pd, .name = "alchemy-pci", .id = 0, .num_resources = ARRAY_SIZE(alchemy_pci_host_res), .resource = alchemy_pci_host_res, }; int __init db1500_pci_setup(void) { return platform_device_register(&db1500_pci_host_dev); } static struct resource au1100_lcd_resources[] = { [0] = { .start = AU1100_LCD_PHYS_ADDR, .end = AU1100_LCD_PHYS_ADDR + 0x800 - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AU1100_LCD_INT, .end = AU1100_LCD_INT, .flags = IORESOURCE_IRQ, } }; static struct platform_device au1100_lcd_device = { .name = "au1100-lcd", .id = 0, .dev = { .dma_mask = &au1xxx_all_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), }, .num_resources = ARRAY_SIZE(au1100_lcd_resources), .resource = au1100_lcd_resources, }; static struct resource alchemy_ac97c_res[] = { [0] = { .start = AU1000_AC97_PHYS_ADDR, .end = AU1000_AC97_PHYS_ADDR + 0xfff, .flags = IORESOURCE_MEM, }, [1] = { .start = DMA_ID_AC97C_TX, .end = DMA_ID_AC97C_TX, .flags = IORESOURCE_DMA, }, [2] = { .start = DMA_ID_AC97C_RX, .end = DMA_ID_AC97C_RX, .flags = IORESOURCE_DMA, }, }; static struct platform_device alchemy_ac97c_dev = { .name = "alchemy-ac97c", .id = -1, .resource = alchemy_ac97c_res, .num_resources = ARRAY_SIZE(alchemy_ac97c_res), }; static struct platform_device alchemy_ac97c_dma_dev = { .name = "alchemy-pcm-dma", .id = 0, }; static struct platform_device db1x00_codec_dev = { .name = "ac97-codec", .id = -1, }; static struct platform_device db1x00_audio_dev = { .name = "db1000-audio", .dev = { .dma_mask = &au1xxx_all_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), }, }; /******************************************************************************/ #ifdef CONFIG_MMC_AU1X static irqreturn_t db1100_mmc_cd(int irq, void *ptr) { mmc_detect_change(ptr, msecs_to_jiffies(500)); return IRQ_HANDLED; } static int db1100_mmc_cd_setup(void *mmc_host, int en) { int ret = 0, irq; if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) irq = AU1100_GPIO19_INT; else irq = AU1100_GPIO14_INT; /* PB1100 SD0 CD# */ if (en) { irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH); ret = request_irq(irq, db1100_mmc_cd, 0, "sd0_cd", mmc_host); } else free_irq(irq, mmc_host); return ret; } static int db1100_mmc1_cd_setup(void *mmc_host, int en) { int ret = 0, irq; if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) irq = AU1100_GPIO20_INT; else irq = AU1100_GPIO15_INT; /* PB1100 SD1 CD# */ if (en) { irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH); ret = request_irq(irq, db1100_mmc_cd, 0, "sd1_cd", mmc_host); } else free_irq(irq, mmc_host); return ret; } static int db1100_mmc_card_readonly(void *mmc_host) { /* testing suggests that this bit is inverted */ return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 0 : 1; } static int db1100_mmc_card_inserted(void *mmc_host) { return !alchemy_gpio_get_value(19); } static void db1100_mmc_set_power(void *mmc_host, int state) { int bit; if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) bit = BCSR_BOARD_SD0PWR; else bit = BCSR_BOARD_PB1100_SD0PWR; if (state) { bcsr_mod(BCSR_BOARD, 0, bit); msleep(400); /* stabilization time */ } else bcsr_mod(BCSR_BOARD, bit, 0); } static void db1100_mmcled_set(struct led_classdev *led, enum led_brightness b) { if (b != LED_OFF) bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0); else bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0); } static struct led_classdev db1100_mmc_led = { .brightness_set = db1100_mmcled_set, }; static int db1100_mmc1_card_readonly(void *mmc_host) { return (bcsr_read(BCSR_BOARD) & BCSR_BOARD_SD1WP) ? 1 : 0; } static int db1100_mmc1_card_inserted(void *mmc_host) { return !alchemy_gpio_get_value(20); } static void db1100_mmc1_set_power(void *mmc_host, int state) { int bit; if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100) bit = BCSR_BOARD_SD1PWR; else bit = BCSR_BOARD_PB1100_SD1PWR; if (state) { bcsr_mod(BCSR_BOARD, 0, bit); msleep(400); /* stabilization time */ } else bcsr_mod(BCSR_BOARD, bit, 0); } static void db1100_mmc1led_set(struct led_classdev *led, enum led_brightness b) { if (b != LED_OFF) bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0); else bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1); } static struct led_classdev db1100_mmc1_led = { .brightness_set = db1100_mmc1led_set, }; static struct au1xmmc_platform_data db1100_mmc_platdata[2] = { [0] = { .cd_setup = db1100_mmc_cd_setup, .set_power = db1100_mmc_set_power, .card_inserted = db1100_mmc_card_inserted, .card_readonly = db1100_mmc_card_readonly, .led = &db1100_mmc_led, }, [1] = { .cd_setup = db1100_mmc1_cd_setup, .set_power = db1100_mmc1_set_power, .card_inserted = db1100_mmc1_card_inserted, .card_readonly = db1100_mmc1_card_readonly, .led = &db1100_mmc1_led, }, }; static struct resource au1100_mmc0_resources[] = { [0] = { .start = AU1100_SD0_PHYS_ADDR, .end = AU1100_SD0_PHYS_ADDR + 0xfff, .flags = IORESOURCE_MEM, }, [1] = { .start = AU1100_SD_INT, .end = AU1100_SD_INT, .flags = IORESOURCE_IRQ, }, [2] = { .start = DMA_ID_SD0_TX, .end = DMA_ID_SD0_TX, .flags = IORESOURCE_DMA, }, [3] = { .start = DMA_ID_SD0_RX, .end = DMA_ID_SD0_RX, .flags = IORESOURCE_DMA, } }; static struct platform_device db1100_mmc0_dev = { .name = "au1xxx-mmc", .id = 0, .dev = { .dma_mask = &au1xxx_all_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &db1100_mmc_platdata[0], }, .num_resources = ARRAY_SIZE(au1100_mmc0_resources), .resource = au1100_mmc0_resources, }; static struct resource au1100_mmc1_res[] = { [0] = { .start = AU1100_SD1_PHYS_ADDR, .end = AU1100_SD1_PHYS_ADDR + 0xfff, .flags = IORESOURCE_MEM, }, [1] = { .start = AU1100_SD_INT, .end = AU1100_SD_INT, .flags = IORESOURCE_IRQ, }, [2] = { .start = DMA_ID_SD1_TX, .end = DMA_ID_SD1_TX, .flags = IORESOURCE_DMA, }, [3] = { .start = DMA_ID_SD1_RX, .end = DMA_ID_SD1_RX, .flags = IORESOURCE_DMA, } }; static struct platform_device db1100_mmc1_dev = { .name = "au1xxx-mmc", .id = 1, .dev = { .dma_mask = &au1xxx_all_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &db1100_mmc_platdata[1], }, .num_resources = ARRAY_SIZE(au1100_mmc1_res), .resource = au1100_mmc1_res, }; #endif /* CONFIG_MMC_AU1X */ /******************************************************************************/ static struct ads7846_platform_data db1100_touch_pd = { .model = 7846, .vref_mv = 3300, }; static struct spi_gpio_platform_data db1100_spictl_pd = { .num_chipselect = 1, }; static struct gpiod_lookup_table db1100_touch_gpio_table = { .dev_id = "spi0.0", .table = { GPIO_LOOKUP("alchemy-gpio2", 21, "pendown", GPIO_ACTIVE_LOW), { } }, }; static struct spi_board_info db1100_spi_info[] __initdata = { [0] = { .modalias = "ads7846", .max_speed_hz = 3250000, .bus_num = 0, .chip_select = 0, .mode = 0, .irq = AU1100_GPIO21_INT, .platform_data = &db1100_touch_pd, }, }; static struct platform_device db1100_spi_dev = { .name = "spi_gpio", .id = 0, .dev = { .platform_data = &db1100_spictl_pd, .dma_mask = &au1xxx_all_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), }, }; /* * Alchemy GPIO 2 has its base at 200 so the GPIO lines * 207 thru 210 are GPIOs at offset 7 thru 10 at this chip. */ static struct gpiod_lookup_table db1100_spi_gpiod_table = { .dev_id = "spi_gpio", .table = { GPIO_LOOKUP("alchemy-gpio2", 9, "sck", GPIO_ACTIVE_HIGH), GPIO_LOOKUP("alchemy-gpio2", 8, "mosi", GPIO_ACTIVE_HIGH), GPIO_LOOKUP("alchemy-gpio2", 7, "miso", GPIO_ACTIVE_HIGH), GPIO_LOOKUP("alchemy-gpio2", 10, "cs", GPIO_ACTIVE_HIGH), { }, }, }; static struct platform_device *db1x00_devs[] = { &db1x00_codec_dev, &alchemy_ac97c_dma_dev, &alchemy_ac97c_dev, &db1x00_audio_dev, }; static struct platform_device *db1100_devs[] = { &au1100_lcd_device, #ifdef CONFIG_MMC_AU1X &db1100_mmc0_dev, &db1100_mmc1_dev, #endif }; int __init db1000_dev_setup(void) { int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); int c0, c1, d0, d1, s0, s1, flashsize = 32, twosocks = 1; unsigned long pfc; struct clk *c, *p; if (board == BCSR_WHOAMI_DB1500) { c0 = AU1500_GPIO2_INT; c1 = AU1500_GPIO5_INT; d0 = 0; /* GPIO number, NOT irq! */ d1 = 3; /* GPIO number, NOT irq! */ s0 = AU1500_GPIO1_INT; s1 = AU1500_GPIO4_INT; } else if (board == BCSR_WHOAMI_DB1100) { c0 = AU1100_GPIO2_INT; c1 = AU1100_GPIO5_INT; d0 = 0; /* GPIO number, NOT irq! */ d1 = 3; /* GPIO number, NOT irq! */ s0 = AU1100_GPIO1_INT; s1 = AU1100_GPIO4_INT; gpio_request(19, "sd0_cd"); gpio_request(20, "sd1_cd"); gpio_direction_input(19); /* sd0 cd# */ gpio_direction_input(20); /* sd1 cd# */ /* spi_gpio on SSI0 pins */ pfc = alchemy_rdsys(AU1000_SYS_PINFUNC); pfc |= (1 << 0); /* SSI0 pins as GPIOs */ alchemy_wrsys(pfc, AU1000_SYS_PINFUNC); gpiod_add_lookup_table(&db1100_touch_gpio_table); spi_register_board_info(db1100_spi_info, ARRAY_SIZE(db1100_spi_info)); /* link LCD clock to AUXPLL */ p = clk_get(NULL, "auxpll_clk"); c = clk_get(NULL, "lcd_intclk"); if (!IS_ERR(c) && !IS_ERR(p)) { clk_set_parent(c, p); clk_set_rate(c, clk_get_rate(p)); } if (!IS_ERR(c)) clk_put(c); if (!IS_ERR(p)) clk_put(p); platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs)); gpiod_add_lookup_table(&db1100_spi_gpiod_table); platform_device_register(&db1100_spi_dev); } else if (board == BCSR_WHOAMI_DB1000) { c0 = AU1000_GPIO2_INT; c1 = AU1000_GPIO5_INT; d0 = 0; /* GPIO number, NOT irq! */ d1 = 3; /* GPIO number, NOT irq! */ s0 = AU1000_GPIO1_INT; s1 = AU1000_GPIO4_INT; } else if ((board == BCSR_WHOAMI_PB1500) || (board == BCSR_WHOAMI_PB1500R2)) { c0 = AU1500_GPIO203_INT; d0 = 1; /* GPIO number, NOT irq! */ s0 = AU1500_GPIO202_INT; twosocks = 0; flashsize = 64; /* RTC and daughtercard irqs */ irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_LOW); irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW); /* EPSON S1D13806 0x1b000000 * SRAM 1MB/2MB 0x1a000000 * DS1693 RTC 0x0c000000 */ } else if (board == BCSR_WHOAMI_PB1100) { c0 = AU1100_GPIO11_INT; d0 = 9; /* GPIO number, NOT irq! */ s0 = AU1100_GPIO10_INT; twosocks = 0; flashsize = 64; /* pendown, rtc, daughtercard irqs */ irq_set_irq_type(AU1100_GPIO8_INT, IRQ_TYPE_LEVEL_LOW); irq_set_irq_type(AU1100_GPIO12_INT, IRQ_TYPE_LEVEL_LOW); irq_set_irq_type(AU1100_GPIO13_INT, IRQ_TYPE_LEVEL_LOW); /* EPSON S1D13806 0x1b000000 * SRAM 1MB/2MB 0x1a000000 * DiskOnChip 0x0d000000 * DS1693 RTC 0x0c000000 */ platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs)); } else return 0; /* unknown board, no further dev setup to do */ irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW); irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW); 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, c0, d0, /*s0*/0, 0, 0); if (twosocks) { irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW); irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW); 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, c1, d1, /*s1*/0, 0, 1); } platform_add_devices(db1x00_devs, ARRAY_SIZE(db1x00_devs)); db1x_register_norflash(flashsize << 20, 4 /* 32bit */, F_SWAPPED); return 0; }