diff options
Diffstat (limited to 'board/samsung/smdk5250/smdk5250.c')
| -rw-r--r-- | board/samsung/smdk5250/smdk5250.c | 178 |
1 files changed, 175 insertions, 3 deletions
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index 7a5f132..217c6df 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -23,6 +23,7 @@ #include <common.h> #include <fdtdec.h> #include <asm/io.h> +#include <errno.h> #include <i2c.h> #include <lcd.h> #include <netdev.h> @@ -35,9 +36,40 @@ #include <asm/arch/sromc.h> #include <asm/arch/dp_info.h> #include <power/pmic.h> +#include <power/max77686_pmic.h> +#include <tmu.h> DECLARE_GLOBAL_DATA_PTR; +#if defined CONFIG_EXYNOS_TMU +/* + * Boot Time Thermal Analysis for SoC temperature threshold breach + */ +static void boot_temp_check(void) +{ + int temp; + + switch (tmu_monitor(&temp)) { + /* Status TRIPPED ans WARNING means corresponding threshold breach */ + case TMU_STATUS_TRIPPED: + puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n"); + set_ps_hold_ctrl(); + hang(); + break; + case TMU_STATUS_WARNING: + puts("EXYNOS_TMU: WARNING! Temperature very high\n"); + break; + /* + * TMU_STATUS_INIT means something is wrong with temperature sensing + * and TMU status was changed back from NORMAL to INIT. + */ + case TMU_STATUS_INIT: + default: + debug("EXYNOS_TMU: Unknown TMU state\n"); + } +} +#endif + #ifdef CONFIG_USB_EHCI_EXYNOS int board_usb_vbus_init(void) { @@ -54,15 +86,39 @@ int board_usb_vbus_init(void) } #endif +#ifdef CONFIG_SOUND_MAX98095 +static void board_enable_audio_codec(void) +{ + struct exynos5_gpio_part1 *gpio1 = (struct exynos5_gpio_part1 *) + samsung_get_base_gpio_part1(); + + /* Enable MAX98095 Codec */ + s5p_gpio_direction_output(&gpio1->x1, 7, 1); + s5p_gpio_set_pull(&gpio1->x1, 7, GPIO_PULL_NONE); +} +#endif + int board_init(void) { gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL); + +#if defined CONFIG_EXYNOS_TMU + if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) { + debug("%s: Failed to init TMU\n", __func__); + return -1; + } + boot_temp_check(); +#endif + #ifdef CONFIG_EXYNOS_SPI spi_init(); #endif #ifdef CONFIG_USB_EHCI_EXYNOS board_usb_vbus_init(); #endif +#ifdef CONFIG_SOUND_MAX98095 + board_enable_audio_codec(); +#endif return 0; } @@ -80,12 +136,119 @@ int dram_init(void) } #if defined(CONFIG_POWER) +static int pmic_reg_update(struct pmic *p, int reg, uint regval) +{ + u32 val; + int ret = 0; + + ret = pmic_reg_read(p, reg, &val); + if (ret) { + debug("%s: PMIC %d register read failed\n", __func__, reg); + return -1; + } + val |= regval; + ret = pmic_reg_write(p, reg, val); + if (ret) { + debug("%s: PMIC %d register write failed\n", __func__, reg); + return -1; + } + return 0; +} + int power_init_board(void) { + struct pmic *p; + + set_ps_hold_ctrl(); + + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + if (pmic_init(I2C_PMIC)) return -1; - else - return 0; + + p = pmic_get("MAX77686_PMIC"); + if (!p) + return -ENODEV; + + if (pmic_probe(p)) + return -1; + + if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN)) + return -1; + + if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT, + MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V)) + return -1; + + /* VDD_MIF */ + if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT, + MAX77686_BUCK1OUT_1V)) { + debug("%s: PMIC %d register write failed\n", __func__, + MAX77686_REG_PMIC_BUCK1OUT); + return -1; + } + + if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL, + MAX77686_BUCK1CTRL_EN)) + return -1; + + /* VDD_ARM */ + if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1, + MAX77686_BUCK2DVS1_1_3V)) { + debug("%s: PMIC %d register write failed\n", __func__, + MAX77686_REG_PMIC_BUCK2DVS1); + return -1; + } + + if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1, + MAX77686_BUCK2CTRL_ON)) + return -1; + + /* VDD_INT */ + if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1, + MAX77686_BUCK3DVS1_1_0125V)) { + debug("%s: PMIC %d register write failed\n", __func__, + MAX77686_REG_PMIC_BUCK3DVS1); + return -1; + } + + if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL, + MAX77686_BUCK3CTRL_ON)) + return -1; + + /* VDD_G3D */ + if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1, + MAX77686_BUCK4DVS1_1_2V)) { + debug("%s: PMIC %d register write failed\n", __func__, + MAX77686_REG_PMIC_BUCK4DVS1); + return -1; + } + + if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1, + MAX77686_BUCK3CTRL_ON)) + return -1; + + /* VDD_LDO2 */ + if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1, + MAX77686_LD02CTRL1_1_5V | EN_LDO)) + return -1; + + /* VDD_LDO3 */ + if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1, + MAX77686_LD03CTRL1_1_8V | EN_LDO)) + return -1; + + /* VDD_LDO5 */ + if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1, + MAX77686_LD05CTRL1_1_8V | EN_LDO)) + return -1; + + /* VDD_LDO10 */ + if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1, + MAX77686_LD10CTRL1_1_8V | EN_LDO)) + return -1; + + return 0; } #endif @@ -212,8 +375,17 @@ int board_eth_init(bd_t *bis) #ifdef CONFIG_DISPLAY_BOARDINFO int checkboard(void) { - printf("\nBoard: SMDK5250\n"); +#ifdef CONFIG_OF_CONTROL + const char *board_name; + board_name = fdt_getprop(gd->fdt_blob, 0, "model", NULL); + if (board_name == NULL) + printf("\nUnknown Board\n"); + else + printf("\nBoard: %s\n", board_name); +#else + printf("\nBoard: SMDK5250\n"); +#endif return 0; } #endif |