diff options
Diffstat (limited to 'arch/arm/mach-mx23/device.c')
| -rw-r--r-- | arch/arm/mach-mx23/device.c | 191 |
1 files changed, 144 insertions, 47 deletions
diff --git a/arch/arm/mach-mx23/device.c b/arch/arm/mach-mx23/device.c index 38ad3f77181f..814c4ef59266 100644 --- a/arch/arm/mach-mx23/device.c +++ b/arch/arm/mach-mx23/device.c @@ -28,6 +28,7 @@ #include <linux/mmc/host.h> #include <linux/phy.h> #include <linux/fec.h> +#include <linux/gpmi-nfc.h> #include <asm/mach/map.h> @@ -43,6 +44,7 @@ #include "device.h" #include "mx23_pins.h" +#include "mx23evk.h" #include "mach/mx23.h" #if defined(CONFIG_SERIAL_MXS_DUART) || \ @@ -510,69 +512,97 @@ static void __init mx23_init_dcp(void) } #endif -#if defined(CONFIG_MMC_MXS) || defined(CONFIG_MMC_MXS_MODULE) -#define MMC0_POWER MXS_PIN_TO_GPIO(PINID_PWM3) -#define MMC0_WP MXS_PIN_TO_GPIO(PINID_PWM4) +#if defined(CONFIG_MTD_NAND_GPMI_NFC) -static int mxs_mmc_get_wp_mmc0(void) +static int gpmi_nfc_platform_init(unsigned int max_chip_count) { - return gpio_get_value(MMC0_WP); + return 0; } -static int mxs_mmc_hw_init_mmc0(void) +static void gpmi_nfc_platform_exit(unsigned int max_chip_count) { - int ret = 0; +} - /* Configure write protect GPIO pin */ - ret = gpio_request(MMC0_WP, "mmc0_wp"); - if (ret) { - pr_err("wp\r\n"); - goto out_wp; - } - gpio_set_value(MMC0_WP, 0); - gpio_direction_input(MMC0_WP); - - /* Configure POWER pin as gpio to drive power to MMC slot */ - ret = gpio_request(MMC0_POWER, "mmc0_power"); - if (ret) { - pr_err("power\r\n"); - goto out_power; - } - gpio_direction_output(MMC0_POWER, 0); - mdelay(100); +static const char *gpmi_nfc_partition_source_types[] = { "cmdlinepart", 0 }; - return 0; +static struct gpmi_nfc_platform_data gpmi_nfc_platform_data = { + .nfc_version = 0, + .boot_rom_version = 0, + .clock_name = "gpmi", + .platform_init = gpmi_nfc_platform_init, + .platform_exit = gpmi_nfc_platform_exit, + .min_prop_delay_in_ns = 5, + .max_prop_delay_in_ns = 9, + .max_chip_count = 2, + .boot_area_size_in_bytes = 20 * SZ_1M, + .partition_source_types = gpmi_nfc_partition_source_types, + .partitions = 0, + .partition_count = 0, +}; -out_power: - gpio_free(MMC0_WP); -out_wp: - return ret; -} +static struct resource gpmi_nfc_resources[] = { + { + .name = GPMI_NFC_GPMI_REGS_ADDR_RES_NAME, + .flags = IORESOURCE_MEM, + .start = GPMI_PHYS_ADDR, + .end = GPMI_PHYS_ADDR + SZ_8K - 1, + }, + { + .name = GPMI_NFC_GPMI_INTERRUPT_RES_NAME, + .flags = IORESOURCE_IRQ, + .start = IRQ_GPMI_ATTENTION, + .end = IRQ_GPMI_ATTENTION, + }, + { + .name = GPMI_NFC_BCH_REGS_ADDR_RES_NAME, + .flags = IORESOURCE_MEM, + .start = BCH_PHYS_ADDR, + .end = BCH_PHYS_ADDR + SZ_8K - 1, + }, + { + .name = GPMI_NFC_BCH_INTERRUPT_RES_NAME, + .flags = IORESOURCE_IRQ, + .start = IRQ_BCH, + .end = IRQ_BCH, + }, + { + .name = GPMI_NFC_DMA_CHANNELS_RES_NAME, + .flags = IORESOURCE_DMA, + .start = MXS_DMA_CHANNEL_AHB_APBH_GPMI0, + .end = MXS_DMA_CHANNEL_AHB_APBH_GPMI3, + }, + { + .name = GPMI_NFC_DMA_INTERRUPT_RES_NAME, + .flags = IORESOURCE_IRQ, + .start = IRQ_GPMI_DMA, + .end = IRQ_GPMI_DMA, + }, +}; -static void mxs_mmc_hw_release_mmc0(void) +static void __init mx23_init_gpmi_nfc(void) { - gpio_free(MMC0_POWER); - gpio_free(MMC0_WP); + struct platform_device *pdev; + pdev = mxs_get_device(GPMI_NFC_DRIVER_NAME, 0); + if (pdev == NULL || IS_ERR(pdev)) + return; + pdev->dev.platform_data = &gpmi_nfc_platform_data; + pdev->resource = gpmi_nfc_resources; + pdev->num_resources = ARRAY_SIZE(gpmi_nfc_resources); + mxs_add_device(pdev, 1); } - -static void mxs_mmc_cmd_pullup_mmc0(int enable) +#else +static void mx23_init_gpmi_nfc(void) { - mxs_set_pullup(PINID_SSP1_CMD, enable, "mmc0_cmd"); } +#endif +#if defined(CONFIG_MMC_MXS) || defined(CONFIG_MMC_MXS_MODULE) static unsigned long mxs_mmc_setclock_mmc0(unsigned long hz) { - struct clk *ssp = clk_get(NULL, "ssp.0"), *parent; + struct clk *ssp = clk_get(NULL, "ssp.0"); - if (hz > 1000000) - parent = clk_get(NULL, "ref_io.0"); - else - parent = clk_get(NULL, "xtal.0"); - - clk_set_parent(ssp, parent); clk_set_rate(ssp, 2 * hz); - clk_put(parent); clk_put(ssp); return hz; @@ -583,7 +613,11 @@ static struct mxs_mmc_platform_data mx23_mmc0_data = { .hw_release = mxs_mmc_hw_release_mmc0, .get_wp = mxs_mmc_get_wp_mmc0, .cmd_pullup = mxs_mmc_cmd_pullup_mmc0, - .setclock = mxs_mmc_setclock_mmc0, + /* + Don't change ssp clock because ssp1 and ssp2 share one ssp clock source + ssp module have own divider. + .setclock = mxs_mmc_setclock_mmc0, + */ .caps = MMC_CAP_4_BIT_DATA, .min_clk = 400000, .max_clk = 48000000, @@ -636,6 +670,68 @@ static void mx23_init_mmc(void) } #endif +#if defined(CONFIG_SPI_MXS) || defined(CONFIG_SPI_MXS_MODULE) +static struct resource ssp1_resources[] = { + { + .start = SSP1_PHYS_ADDR, + .end = SSP1_PHYS_ADDR + 0x1FFF, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_SSP1_DMA, + .end = IRQ_SSP1_DMA, + .flags = IORESOURCE_IRQ, + }, { + .start = IRQ_SSP_ERROR, + .end = IRQ_SSP_ERROR, + .flags = IORESOURCE_IRQ, + }, { + .start = MXS_DMA_CHANNEL_AHB_APBH_SSP1, + .end = MXS_DMA_CHANNEL_AHB_APBH_SSP1, + .flags = IORESOURCE_DMA, + }, +}; + +static void __init mx23_init_spi1(void) +{ + struct platform_device *pdev; + + pdev = mxs_get_device("mxs-spi", 0); + if (pdev == NULL || IS_ERR(pdev)) + return; + pdev->resource = ssp1_resources; + pdev->num_resources = ARRAY_SIZE(ssp1_resources); + + mxs_add_device(pdev, 3); +} +#else +static void mx23_init_spi1(void) +{ + ; +} +#endif + +#define CMDLINE_DEVICE_CHOOSE(name, dev1, dev2) \ + static char *cmdline_device_##name; \ + static int cmdline_device_##name##_setup(char *dev) \ + { \ + cmdline_device_##name = dev + 1; \ + return 0; \ + } \ + __setup(#name, cmdline_device_##name##_setup); \ + void mx23_init_##name(void) \ + { \ + if (!cmdline_device_##name || \ + !strcmp(cmdline_device_##name, #dev1)) \ + mx23_init_##dev1(); \ + else if (!strcmp(cmdline_device_##name, #dev2)) \ + mx23_init_##dev2(); \ + else \ + pr_err("Unknown %s assignment '%s'.\n", \ + #name, cmdline_device_##name); \ + } + +CMDLINE_DEVICE_CHOOSE(ssp1, mmc, spi1) + #if defined(CONFIG_BATTERY_MXS) /* battery info data */ static ddi_bc_Cfg_t battery_data = { @@ -729,7 +825,7 @@ void __init mx23_init_spdif(void) mxs_add_device(pdev, 3); } #else -static inline mx23_init_spdif(void) +static inline void mx23_init_spdif(void) { } #endif @@ -848,7 +944,8 @@ int __init mx23_device_init(void) mx23_init_ts(); mx23_init_rtc(); mx23_init_dcp(); - mx23_init_mmc(); + mx23_init_ssp1(); + mx23_init_gpmi_nfc(); mx23_init_spdif(); mx23_init_lcdif(); mx23_init_pxp(); |