diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-omap3beagle.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3beagle.c | 221 |
1 files changed, 171 insertions, 50 deletions
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 69b154cdc75d..46d814ab5656 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -27,6 +27,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/nand.h> +#include <linux/mmc/host.h> #include <linux/regulator/machine.h> #include <linux/i2c/twl.h> @@ -40,19 +41,104 @@ #include <plat/board.h> #include <plat/common.h> #include <plat/display.h> +#include <plat/panel-generic-dpi.h> #include <plat/gpmc.h> #include <plat/nand.h> #include <plat/usb.h> -#include <plat/timer-gp.h> #include "mux.h" #include "hsmmc.h" - -#define GPMC_CS0_BASE 0x60 -#define GPMC_CS_SIZE 0x30 +#include "timer-gp.h" #define NAND_BLOCK_SIZE SZ_128K +/* + * OMAP3 Beagle revision + * Run time detection of Beagle revision is done by reading GPIO. + * GPIO ID - + * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1 + * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0 + * C4 = GPIO173, GPIO172, GPIO171: 1 0 1 + * XM = GPIO173, GPIO172, GPIO171: 0 0 0 + */ +enum { + OMAP3BEAGLE_BOARD_UNKN = 0, + OMAP3BEAGLE_BOARD_AXBX, + OMAP3BEAGLE_BOARD_C1_3, + OMAP3BEAGLE_BOARD_C4, + OMAP3BEAGLE_BOARD_XM, +}; + +static u8 omap3_beagle_version; + +static u8 omap3_beagle_get_rev(void) +{ + return omap3_beagle_version; +} + +static void __init omap3_beagle_init_rev(void) +{ + int ret; + u16 beagle_rev = 0; + + omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP); + omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP); + omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP); + + ret = gpio_request(171, "rev_id_0"); + if (ret < 0) + goto fail0; + + ret = gpio_request(172, "rev_id_1"); + if (ret < 0) + goto fail1; + + ret = gpio_request(173, "rev_id_2"); + if (ret < 0) + goto fail2; + + gpio_direction_input(171); + gpio_direction_input(172); + gpio_direction_input(173); + + beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1) + | (gpio_get_value(173) << 2); + + switch (beagle_rev) { + case 7: + printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n"); + omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX; + break; + case 6: + printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n"); + omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3; + break; + case 5: + printk(KERN_INFO "OMAP3 Beagle Rev: C4\n"); + omap3_beagle_version = OMAP3BEAGLE_BOARD_C4; + break; + case 0: + printk(KERN_INFO "OMAP3 Beagle Rev: xM\n"); + omap3_beagle_version = OMAP3BEAGLE_BOARD_XM; + break; + default: + printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev); + omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN; + } + + return; + +fail2: + gpio_free(172); +fail1: + gpio_free(171); +fail0: + printk(KERN_ERR "Unable to get revision detection GPIO pins\n"); + omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN; + + return; +} + static struct mtd_partition omap3beagle_nand_partitions[] = { /* All the partition sizes are listed in terms of NAND block size */ { @@ -93,20 +179,6 @@ static struct omap_nand_platform_data omap3beagle_nand_data = { .dev_ready = NULL, }; -static struct resource omap3beagle_nand_resource = { - .flags = IORESOURCE_MEM, -}; - -static struct platform_device omap3beagle_nand_device = { - .name = "omap2-nand", - .id = -1, - .dev = { - .platform_data = &omap3beagle_nand_data, - }, - .num_resources = 1, - .resource = &omap3beagle_nand_resource, -}; - /* DSS */ static int beagle_enable_dvi(struct omap_dss_device *dssdev) @@ -123,14 +195,19 @@ static void beagle_disable_dvi(struct omap_dss_device *dssdev) gpio_set_value(dssdev->reset_gpio, 0); } +static struct panel_generic_dpi_data dvi_panel = { + .name = "generic", + .platform_enable = beagle_enable_dvi, + .platform_disable = beagle_disable_dvi, +}; + static struct omap_dss_device beagle_dvi_device = { .type = OMAP_DISPLAY_TYPE_DPI, .name = "dvi", - .driver_name = "generic_panel", + .driver_name = "generic_dpi_panel", + .data = &dvi_panel, .phy.dpi.data_lines = 24, - .reset_gpio = 170, - .platform_enable = beagle_enable_dvi, - .platform_disable = beagle_disable_dvi, + .reset_gpio = -EINVAL, }; static struct omap_dss_device beagle_tv_device = { @@ -183,7 +260,7 @@ static void __init beagle_display_init(void) static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, - .wires = 8, + .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, .gpio_wp = 29, }, {} /* Terminator */ @@ -202,7 +279,12 @@ static struct gpio_led gpio_leds[]; static int beagle_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { - if (system_rev >= 0x20 && system_rev <= 0x34301000) { + int r; + + if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) { + mmc[0].gpio_wp = -EINVAL; + } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) || + (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) { omap_mux_init_gpio(23, OMAP_PIN_INPUT); mmc[0].gpio_wp = 23; } else { @@ -219,17 +301,63 @@ static int beagle_twl_gpio_setup(struct device *dev, /* REVISIT: need ehci-omap hooks for external VBUS * power switch and overcurrent detect */ + if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) { + r = gpio_request(gpio + 1, "EHCI_nOC"); + if (!r) { + r = gpio_direction_input(gpio + 1); + if (r) + gpio_free(gpio + 1); + } + if (r) + pr_err("%s: unable to configure EHCI_nOC\n", __func__); + } - gpio_request(gpio + 1, "EHCI_nOC"); - gpio_direction_input(gpio + 1); - - /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */ + /* + * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active + * high / others active low) + */ gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR"); - gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0); + if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) + gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1); + else + gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0); + + /* DVI reset GPIO is different between beagle revisions */ + if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) + beagle_dvi_device.reset_gpio = 129; + else + beagle_dvi_device.reset_gpio = 170; /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; + /* + * gpio + 1 on Xm controls the TFP410's enable line (active low) + * gpio + 2 control varies depending on the board rev as follows: + * P7/P8 revisions(prototype): Camera EN + * A2+ revisions (production): LDO (supplies DVI, serial, led blocks) + */ + if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) { + r = gpio_request(gpio + 1, "nDVI_PWR_EN"); + if (!r) { + r = gpio_direction_output(gpio + 1, 0); + if (r) + gpio_free(gpio + 1); + } + if (r) + pr_err("%s: unable to configure nDVI_PWR_EN\n", + __func__); + r = gpio_request(gpio + 2, "DVI_LDO_EN"); + if (!r) { + r = gpio_direction_output(gpio + 2, 1); + if (r) + gpio_free(gpio + 2); + } + if (r) + pr_err("%s: unable to configure DVI_LDO_EN\n", + __func__); + } + return 0; } @@ -339,13 +467,19 @@ static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = { }, }; +static struct i2c_board_info __initdata beagle_i2c_eeprom[] = { + { + I2C_BOARD_INFO("eeprom", 0x50), + }, +}; + static int __init omap3_beagle_i2c_init(void) { omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo, ARRAY_SIZE(beagle_i2c_boardinfo)); /* Bus 3 is attached to the DVI port where devices like the pico DLP * projector don't work reliably with 400kHz */ - omap_register_i2c_bus(3, 100, NULL, 0); + omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom)); return 0; } @@ -404,13 +538,13 @@ static struct platform_device keys_gpio = { static void __init omap3_beagle_init_irq(void) { - omap2_init_common_hw(mt46h32m32lf6_sdrc_params, - mt46h32m32lf6_sdrc_params); + omap2_init_common_infrastructure(); + omap2_init_common_devices(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); omap_init_irq(); #ifdef CONFIG_OMAP_32K_TIMER omap2_gp_clockevent_set_gptimer(12); #endif - omap_gpio_init(); } static struct platform_device *omap3_beagle_devices[] __initdata = { @@ -424,8 +558,6 @@ static void __init omap3beagle_flash_init(void) u8 cs = 0; u8 nandcs = GPMC_CS_NUM + 1; - u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; - /* find out the chip-select on which NAND exists */ while (cs < GPMC_CS_NUM) { u32 ret = 0; @@ -447,12 +579,9 @@ static void __init omap3beagle_flash_init(void) if (nandcs < GPMC_CS_NUM) { omap3beagle_nand_data.cs = nandcs; - omap3beagle_nand_data.gpmc_cs_baseaddr = (void *) - (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE); - omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add); printk(KERN_INFO "Registering NAND on CS%d\n", nandcs); - if (platform_device_register(&omap3beagle_nand_device) < 0) + if (gpmc_nand_init(&omap3beagle_nand_data) < 0) printk(KERN_ERR "Unable to register NAND device\n"); } } @@ -473,8 +602,6 @@ static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { static struct omap_board_mux board_mux[] __initdata = { { .reg_offset = OMAP_MUX_TERMINATOR }, }; -#else -#define board_mux NULL #endif static struct omap_musb_board_data musb_board_data = { @@ -486,6 +613,7 @@ static struct omap_musb_board_data musb_board_data = { static void __init omap3_beagle_init(void) { omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); + omap3_beagle_init_rev(); omap3_beagle_i2c_init(); platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices)); @@ -507,18 +635,11 @@ static void __init omap3_beagle_init(void) beagle_display_init(); } -static void __init omap3_beagle_map_io(void) -{ - omap2_set_globals_343x(); - omap34xx_map_common_io(); -} - MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board") /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */ - .phys_io = 0x48000000, - .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc, .boot_params = 0x80000100, - .map_io = omap3_beagle_map_io, + .map_io = omap3_map_io, + .reserve = omap_reserve, .init_irq = omap3_beagle_init_irq, .init_machine = omap3_beagle_init, .timer = &omap_timer, |