diff options
Diffstat (limited to 'arch/mips/alchemy/devboards/db1300.c')
| -rw-r--r-- | arch/mips/alchemy/devboards/db1300.c | 171 |
1 files changed, 136 insertions, 35 deletions
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c index 6167e73eef9c..d377e043b49f 100644 --- a/arch/mips/alchemy/devboards/db1300.c +++ b/arch/mips/alchemy/devboards/db1300.c @@ -1,9 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0 /* * DBAu1300 init and platform device setup. * * (c) 2009 Manuel Lauss <manuel.lauss@googlemail.com> */ +#include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/gpio.h> #include <linux/gpio_keys.h> @@ -12,26 +14,59 @@ #include <linux/i2c.h> #include <linux/io.h> #include <linux/leds.h> +#include <linux/interrupt.h> #include <linux/ata_platform.h> #include <linux/mmc/host.h> -#include <linux/module.h> #include <linux/mtd/mtd.h> -#include <linux/mtd/nand.h> -#include <linux/mtd/partitions.h> +#include <linux/mtd/platnand.h> #include <linux/platform_device.h> #include <linux/smsc911x.h> +#include <linux/wm97xx.h> #include <asm/mach-au1x00/au1000.h> +#include <asm/mach-au1x00/gpio-au1300.h> #include <asm/mach-au1x00/au1100_mmc.h> #include <asm/mach-au1x00/au1200fb.h> #include <asm/mach-au1x00/au1xxx_dbdma.h> #include <asm/mach-au1x00/au1xxx_psc.h> -#include <asm/mach-db1x00/db1300.h> #include <asm/mach-db1x00/bcsr.h> #include <asm/mach-au1x00/prom.h> #include "platform.h" +/* FPGA (external mux) interrupt sources */ +#define DB1300_FIRST_INT (ALCHEMY_GPIC_INT_LAST + 1) +#define DB1300_IDE_INT (DB1300_FIRST_INT + 0) +#define DB1300_ETH_INT (DB1300_FIRST_INT + 1) +#define DB1300_CF_INT (DB1300_FIRST_INT + 2) +#define DB1300_VIDEO_INT (DB1300_FIRST_INT + 4) +#define DB1300_HDMI_INT (DB1300_FIRST_INT + 5) +#define DB1300_DC_INT (DB1300_FIRST_INT + 6) +#define DB1300_FLASH_INT (DB1300_FIRST_INT + 7) +#define DB1300_CF_INSERT_INT (DB1300_FIRST_INT + 8) +#define DB1300_CF_EJECT_INT (DB1300_FIRST_INT + 9) +#define DB1300_AC97_INT (DB1300_FIRST_INT + 10) +#define DB1300_AC97_PEN_INT (DB1300_FIRST_INT + 11) +#define DB1300_SD1_INSERT_INT (DB1300_FIRST_INT + 12) +#define DB1300_SD1_EJECT_INT (DB1300_FIRST_INT + 13) +#define DB1300_OTG_VBUS_OC_INT (DB1300_FIRST_INT + 14) +#define DB1300_HOST_VBUS_OC_INT (DB1300_FIRST_INT + 15) +#define DB1300_LAST_INT (DB1300_FIRST_INT + 15) + +/* SMSC9210 CS */ +#define DB1300_ETH_PHYS_ADDR 0x19000000 +#define DB1300_ETH_PHYS_END 0x197fffff + +/* ATA CS */ +#define DB1300_IDE_PHYS_ADDR 0x18800000 +#define DB1300_IDE_REG_SHIFT 5 +#define DB1300_IDE_PHYS_LEN (16 << DB1300_IDE_REG_SHIFT) + +/* NAND CS */ +#define DB1300_NAND_PHYS_ADDR 0x20000000 +#define DB1300_NAND_PHYS_END 0x20000fff + + static struct i2c_board_info db1300_i2c_devs[] __initdata = { { I2C_BOARD_INFO("wm8731", 0x1b), }, /* I2S audio codec */ { I2C_BOARD_INFO("ne1619", 0x2d), }, /* adm1025-compat hwmon */ @@ -112,11 +147,12 @@ static void __init db1300_gpio_config(void) /**********************************************************************/ -static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, +static u64 au1300_all_dmamask = DMA_BIT_MASK(32); + +static void au1300_nand_cmd_ctrl(struct nand_chip *this, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; - unsigned long ioaddr = (unsigned long)this->IO_ADDR_W; + unsigned long ioaddr = (unsigned long)this->legacy.IO_ADDR_W; ioaddr &= 0xffffff00; @@ -128,16 +164,16 @@ static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, /* 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; + this->legacy.IO_ADDR_R = this->legacy.IO_ADDR_W = (void __iomem *)ioaddr; if (cmd != NAND_CMD_NONE) { - __raw_writeb(cmd, this->IO_ADDR_W); + __raw_writeb(cmd, this->legacy.IO_ADDR_W); wmb(); } } -static int au1300_nand_device_ready(struct mtd_info *mtd) +static int au1300_nand_device_ready(struct nand_chip *this) { - return __raw_readl((void __iomem *)MEM_STSTAT) & 1; + return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1; } static struct mtd_partition db1300_nand_parts[] = { @@ -403,6 +439,8 @@ static struct resource db1300_ide_res[] = { static struct platform_device db1300_ide_dev = { .dev = { + .dma_mask = &au1300_all_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &db1300_ide_info, }, .name = "pata_platform", @@ -412,25 +450,22 @@ static struct platform_device db1300_ide_dev = { /**********************************************************************/ +#ifdef CONFIG_MMC_AU1X static irqreturn_t db1300_mmc_cd(int irq, void *ptr) { - void(*mmc_cd)(struct mmc_host *, unsigned long); + disable_irq_nosync(irq); + return IRQ_WAKE_THREAD; +} - /* disable the one currently screaming. No other way to shut it up */ - if (irq == DB1300_SD1_INSERT_INT) { - disable_irq_nosync(DB1300_SD1_INSERT_INT); +static irqreturn_t db1300_mmc_cdfn(int irq, void *ptr) +{ + mmc_detect_change(ptr, msecs_to_jiffies(200)); + + msleep(100); /* debounce */ + if (irq == DB1300_SD1_INSERT_INT) enable_irq(DB1300_SD1_EJECT_INT); - } else { - disable_irq_nosync(DB1300_SD1_EJECT_INT); + else enable_irq(DB1300_SD1_INSERT_INT); - } - - /* link against CONFIG_MMC=m. We can only be called once MMC core has - * initialized the controller, so symbol_get() should always succeed. - */ - mmc_cd = symbol_get(mmc_detect_change); - mmc_cd(ptr, msecs_to_jiffies(500)); - symbol_put(mmc_detect_change); return IRQ_HANDLED; } @@ -451,13 +486,13 @@ static int db1300_mmc_cd_setup(void *mmc_host, int en) int ret; if (en) { - ret = request_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd, 0, - "sd_insert", mmc_host); + ret = request_threaded_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd, + db1300_mmc_cdfn, 0, "sd_insert", mmc_host); if (ret) goto out; - ret = request_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd, 0, - "sd_eject", mmc_host); + ret = request_threaded_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd, + db1300_mmc_cdfn, 0, "sd_eject", mmc_host); if (ret) { free_irq(DB1300_SD1_INSERT_INT, mmc_host); goto out; @@ -522,7 +557,9 @@ static struct resource au1300_sd1_res[] = { static struct platform_device db1300_sd1_dev = { .dev = { - .platform_data = &db1300_sd1_platdata, + .dma_mask = &au1300_all_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &db1300_sd1_platdata, }, .name = "au1xxx-mmc", .id = 1, @@ -587,13 +624,16 @@ static struct resource au1300_sd0_res[] = { static struct platform_device db1300_sd0_dev = { .dev = { - .platform_data = &db1300_sd0_platdata, + .dma_mask = &au1300_all_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &db1300_sd0_platdata, }, .name = "au1xxx-mmc", .id = 0, .resource = au1300_sd0_res, .num_resources = ARRAY_SIZE(au1300_sd0_res), }; +#endif /* CONFIG_MMC_AU1X */ /**********************************************************************/ @@ -614,10 +654,18 @@ static struct platform_device db1300_i2sdma_dev = { static struct platform_device db1300_sndac97_dev = { .name = "db1300-ac97", + .dev = { + .dma_mask = &au1300_all_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, }; static struct platform_device db1300_sndi2s_dev = { .name = "db1300-i2s", + .dev = { + .dma_mask = &au1300_all_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, }; /**********************************************************************/ @@ -662,13 +710,12 @@ static struct resource au1300_lcd_res[] = { } }; -static u64 au1300_lcd_dmamask = DMA_BIT_MASK(32); static struct platform_device db1300_lcd_dev = { .name = "au1200-lcd", .id = 0, .dev = { - .dma_mask = &au1300_lcd_dmamask, + .dma_mask = &au1300_all_dmamask, .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &db1300fb_pd, }, @@ -678,14 +725,54 @@ static struct platform_device db1300_lcd_dev = { /**********************************************************************/ +#if IS_ENABLED(CONFIG_TOUCHSCREEN_WM97XX) +static struct wm97xx_mach_ops db1300_wm97xx_ops = { + .irq_gpio = WM97XX_GPIO_3, +}; + +static int db1300_wm97xx_probe(struct platform_device *pdev) +{ + struct wm97xx *wm = platform_get_drvdata(pdev); + + /* external pendown indicator */ + wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN, + WM97XX_GPIO_POL_LOW, WM97XX_GPIO_STICKY, + WM97XX_GPIO_WAKE); + + /* internal "virtual" pendown gpio */ + wm97xx_config_gpio(wm, WM97XX_GPIO_3, WM97XX_GPIO_OUT, + WM97XX_GPIO_POL_LOW, WM97XX_GPIO_NOTSTICKY, + WM97XX_GPIO_NOWAKE); + + wm->pen_irq = DB1300_AC97_PEN_INT; + + return wm97xx_register_mach_ops(wm, &db1300_wm97xx_ops); +} +#else +static int db1300_wm97xx_probe(struct platform_device *pdev) +{ + return -ENODEV; +} +#endif + +static struct platform_driver db1300_wm97xx_driver = { + .driver.name = "wm97xx-touch", + .driver.owner = THIS_MODULE, + .probe = db1300_wm97xx_probe, +}; + +/**********************************************************************/ + static struct platform_device *db1300_dev[] __initdata = { &db1300_eth_dev, &db1300_i2c_dev, &db1300_5waysw_dev, &db1300_nand_dev, &db1300_ide_dev, +#ifdef CONFIG_MMC_AU1X &db1300_sd0_dev, &db1300_sd1_dev, +#endif &db1300_lcd_dev, &db1300_ac97_dev, &db1300_i2s_dev, @@ -699,6 +786,7 @@ static struct platform_device *db1300_dev[] __initdata = { int __init db1300_dev_setup(void) { int swapped, cpldirq; + struct clk *c; /* setup CPLD IRQ muxer */ cpldirq = au1300_gpio_to_irq(AU1300_PIN_EXTCLK1); @@ -721,6 +809,9 @@ int __init db1300_dev_setup(void) i2c_register_board_info(0, db1300_i2c_devs, ARRAY_SIZE(db1300_i2c_devs)); + if (platform_driver_register(&db1300_wm97xx_driver)) + pr_warn("DB1300: failed to init touch pen irq support!\n"); + /* Audio PSC clock is supplied by codecs (PSC1, 2) */ __raw_writel(PSC_SEL_CLK_SERCLK, (void __iomem *)KSEG1ADDR(AU1300_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET); @@ -728,7 +819,13 @@ int __init db1300_dev_setup(void) __raw_writel(PSC_SEL_CLK_SERCLK, (void __iomem *)KSEG1ADDR(AU1300_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET); wmb(); - /* I2C uses internal 48MHz EXTCLK1 */ + /* I2C driver wants 50MHz, get as close as possible */ + c = clk_get(NULL, "psc3_intclk"); + if (!IS_ERR(c)) { + clk_set_rate(c, 50000000); + clk_prepare_enable(c); + clk_put(c); + } __raw_writel(PSC_SEL_CLK_INTCLK, (void __iomem *)KSEG1ADDR(AU1300_PSC3_PHYS_ADDR) + PSC_SEL_OFFSET); wmb(); @@ -759,11 +856,15 @@ int __init db1300_board_setup(void) { unsigned short whoami; - db1300_gpio_config(); bcsr_init(DB1300_BCSR_PHYS_ADDR, DB1300_BCSR_PHYS_ADDR + DB1300_BCSR_HEXLED_OFS); whoami = bcsr_read(BCSR_WHOAMI); + if (BCSR_WHOAMI_BOARD(whoami) != BCSR_WHOAMI_DB1300) + return -ENODEV; + + db1300_gpio_config(); + printk(KERN_INFO "NetLogic DBAu1300 Development Platform.\n\t" "BoardID %d CPLD Rev %d DaughtercardID %d\n", BCSR_WHOAMI_BOARD(whoami), BCSR_WHOAMI_CPLD(whoami), |