diff options
Diffstat (limited to 'board/isee/igep00x0/igep00x0.c')
| -rw-r--r-- | board/isee/igep00x0/igep00x0.c | 90 |
1 files changed, 82 insertions, 8 deletions
diff --git a/board/isee/igep00x0/igep00x0.c b/board/isee/igep00x0/igep00x0.c index 74f9bab093..5c7f256711 100644 --- a/board/isee/igep00x0/igep00x0.c +++ b/board/isee/igep00x0/igep00x0.c @@ -17,7 +17,6 @@ #include <asm/arch/mmc_host_def.h> #include <asm/arch/mux.h> #include <asm/arch/sys_proto.h> -#include <asm/mach-types.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/onenand.h> @@ -38,6 +37,43 @@ U_BOOT_DEVICE(igep_uart) = { &igep_serial }; +/* + * Routine: get_board_revision + * Description: GPIO_28 and GPIO_129 are used to read board and revision from + * IGEP00x0 boards. First of all, it is necessary to reset USB transceiver from + * IGEP0030 in order to read GPIO_IGEP00X0_BOARD_DETECTION correctly, because + * this functionality is shared by USB HOST. + * Once USB reset is applied, U-boot configures these pins as input pullup to + * detect board and revision: + * IGEP0020-RF = 0b00 + * IGEP0020-RC = 0b01 + * IGEP0030-RG = 0b10 + * IGEP0030-RE = 0b11 + */ +static int get_board_revision(void) +{ + int revision; + + gpio_request(IGEP0030_USB_TRANSCEIVER_RESET, + "igep0030_usb_transceiver_reset"); + gpio_direction_output(IGEP0030_USB_TRANSCEIVER_RESET, 0); + + gpio_request(GPIO_IGEP00X0_BOARD_DETECTION, "igep00x0_board_detection"); + gpio_direction_input(GPIO_IGEP00X0_BOARD_DETECTION); + revision = 2 * gpio_get_value(GPIO_IGEP00X0_BOARD_DETECTION); + gpio_free(GPIO_IGEP00X0_BOARD_DETECTION); + + gpio_request(GPIO_IGEP00X0_REVISION_DETECTION, + "igep00x0_revision_detection"); + gpio_direction_input(GPIO_IGEP00X0_REVISION_DETECTION); + revision = revision + gpio_get_value(GPIO_IGEP00X0_REVISION_DETECTION); + gpio_free(GPIO_IGEP00X0_REVISION_DETECTION); + + gpio_free(IGEP0030_USB_TRANSCEIVER_RESET); + + return revision; +} + int onenand_board_init(struct mtd_info *mtd) { if (gpmc_cs0_flash == MTD_DEV_TYPE_ONENAND) { @@ -138,31 +174,69 @@ int ft_board_setup(void *blob, bd_t *bd) } #endif -void set_fdt(void) +void set_led(void) { - switch (gd->bd->bi_arch_number) { - case MACH_TYPE_IGEP0020: - env_set("fdtfile", "omap3-igep0020.dtb"); + switch (get_board_revision()) { + case 0: + case 1: + gpio_request(IGEP0020_GPIO_LED, "igep0020_gpio_led"); + gpio_direction_output(IGEP0020_GPIO_LED, 1); break; - case MACH_TYPE_IGEP0030: - env_set("fdtfile", "omap3-igep0030.dtb"); + case 2: + case 3: + gpio_request(IGEP0030_GPIO_LED, "igep0030_gpio_led"); + gpio_direction_output(IGEP0030_GPIO_LED, 0); + break; + default: + /* Should not happen... */ break; } } +void set_boardname(void) +{ + char rev[5] = { 'F','C','G','E', }; + int i = get_board_revision(); + + rev[i+1] = 0; + env_set("board_rev", rev + i); + env_set("board_name", i < 2 ? "igep0020" : "igep0030"); +} + /* * Routine: misc_init_r * Description: Configure board specific parts */ int misc_init_r(void) { + t2_t *t2_base = (t2_t *)T2_BASE; + u32 pbias_lite; + twl4030_power_init(); + /* set VSIM to 1.8V */ + twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED, + TWL4030_PM_RECEIVER_VSIM_VSEL_18, + TWL4030_PM_RECEIVER_VSIM_DEV_GRP, + TWL4030_PM_RECEIVER_DEV_GRP_P1); + + /* set up dual-voltage GPIOs to 1.8V */ + pbias_lite = readl(&t2_base->pbias_lite); + pbias_lite &= ~PBIASLITEVMODE1; + pbias_lite |= PBIASLITEPWRDNZ1; + writel(pbias_lite, &t2_base->pbias_lite); + if (get_cpu_family() == CPU_OMAP36XX) + writel(readl(OMAP34XX_CTRL_WKUP_CTRL) | + OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ, + OMAP34XX_CTRL_WKUP_CTRL); + setup_net_chip(); omap_die_id_display(); - set_fdt(); + set_led(); + + set_boardname(); return 0; } |