diff options
Diffstat (limited to 'board/toradex/verdin-imx8mm')
| -rw-r--r-- | board/toradex/verdin-imx8mm/MAINTAINERS | 2 | ||||
| -rw-r--r-- | board/toradex/verdin-imx8mm/spl.c | 42 | ||||
| -rw-r--r-- | board/toradex/verdin-imx8mm/verdin-imx8mm.c | 81 |
3 files changed, 103 insertions, 22 deletions
diff --git a/board/toradex/verdin-imx8mm/MAINTAINERS b/board/toradex/verdin-imx8mm/MAINTAINERS index 2495696e9d..08c370178c 100644 --- a/board/toradex/verdin-imx8mm/MAINTAINERS +++ b/board/toradex/verdin-imx8mm/MAINTAINERS @@ -1,5 +1,5 @@ Verdin iMX8M Mini -M: Igor Opaniuk <igor.opaniuk@toradex.com> +M: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> W: https://www.toradex.com/computer-on-modules/verdin-arm-family/nxp-imx-8m-mini S: Maintained F: arch/arm/dts/imx8mm-verdin.dts diff --git a/board/toradex/verdin-imx8mm/spl.c b/board/toradex/verdin-imx8mm/spl.c index cc78c5666b..72e2e09e25 100644 --- a/board/toradex/verdin-imx8mm/spl.c +++ b/board/toradex/verdin-imx8mm/spl.c @@ -21,12 +21,16 @@ #include <dm/uclass.h> #include <dm/uclass-internal.h> #include <hang.h> +#include <i2c.h> #include <power/bd71837.h> +#include <power/pca9450.h> #include <power/pmic.h> #include <spl.h> DECLARE_GLOBAL_DATA_PTR; +#define I2C_PMIC_BUS_ID 1 + int spl_board_boot_device(enum boot_device boot_dev_spl) { switch (boot_dev_spl) { @@ -101,33 +105,29 @@ int power_init_board(void) struct udevice *dev; int ret; - ret = pmic_get("pmic@4b", &dev); - if (ret == -ENODEV) { - puts("No pmic\n"); - return 0; - } - if (ret != 0) - return ret; + if (IS_ENABLED(CONFIG_SPL_DM_PMIC_PCA9450)) { + ret = pmic_get("pmic", &dev); + if (ret == -ENODEV) { + puts("No pmic found\n"); + return ret; + } - /* decrease RESET key long push time from the default 10s to 10ms */ - pmic_reg_write(dev, BD718XX_PWRONCONFIG1, 0x0); + if (ret != 0) + return ret; - /* unlock the PMIC regs */ - pmic_reg_write(dev, BD718XX_REGLOCK, 0x1); + /* BUCKxOUT_DVS0/1 control BUCK123 output, clear PRESET_EN */ + pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29); - /* increase VDD_SOC to typical value 0.85v before first DRAM access */ - pmic_reg_write(dev, BD718XX_BUCK1_VOLT_RUN, 0x0f); + /* increase VDD_DRAM to 0.975v for 1.5Ghz DDR */ + pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1c); - /* increase VDD_DRAM to 0.975v for 3Ghz DDR */ - pmic_reg_write(dev, BD718XX_1ST_NODVS_BUCK_VOLT, 0x83); + /* set WDOG_B_CFG to cold reset */ + pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1); -#ifndef CONFIG_IMX8M_LPDDR4 - /* increase NVCC_DRAM_1V2 to 1.2v for DDR4 */ - pmic_reg_write(dev, BD718XX_4TH_NODVS_BUCK_VOLT, 0x28); -#endif + pmic_reg_write(dev, PCA9450_CONFIG2, 0x1); - /* lock the PMIC regs */ - pmic_reg_write(dev, BD718XX_REGLOCK, 0x11); + return 0; + } return 0; } diff --git a/board/toradex/verdin-imx8mm/verdin-imx8mm.c b/board/toradex/verdin-imx8mm/verdin-imx8mm.c index 66950ed218..7cfae8767c 100644 --- a/board/toradex/verdin-imx8mm/verdin-imx8mm.c +++ b/board/toradex/verdin-imx8mm/verdin-imx8mm.c @@ -8,12 +8,22 @@ #include <asm/arch/clock.h> #include <asm/arch/sys_proto.h> #include <asm/io.h> +#include <i2c.h> #include <miiphy.h> #include <netdev.h> #include <micrel.h> +#include "../common/tdx-cfg-block.h" + DECLARE_GLOBAL_DATA_PTR; +#define I2C_PMIC 0 + +enum pcb_rev_t { + PCB_VERSION_1_0, + PCB_VERSION_1_1 +}; + #if IS_ENABLED(CONFIG_FEC_MXC) static int setup_fec(void) { @@ -104,8 +114,79 @@ int board_mmc_get_env_dev(int devno) return devno; } +static enum pcb_rev_t get_pcb_revision(void) +{ + struct udevice *bus; + struct udevice *i2c_dev = NULL; + int ret; + u8 is_bd71837 = 0; + + ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_PMIC, &bus); + if (!ret) + ret = dm_i2c_probe(bus, 0x4b, 0, &i2c_dev); + if (!ret) + ret = dm_i2c_read(i2c_dev, 0x0, &is_bd71837, 1); + + /* BD71837_REV, High Nibble is major version, fix 1010 */ + is_bd71837 = !ret && ((is_bd71837 & 0xf0) == 0xa0); + return is_bd71837 ? PCB_VERSION_1_0 : PCB_VERSION_1_1; +} + +static void select_dt_from_module_version(void) +{ + char variant[32]; + char *env_variant = env_get("variant"); + int is_wifi = 0; + + if (IS_ENABLED(CONFIG_TDX_CFG_BLOCK)) { + /* + * If we have a valid config block and it says we are a + * module with Wi-Fi/Bluetooth make sure we use the -wifi + * device tree. + */ + is_wifi = (tdx_hw_tag.prodid == VERDIN_IMX8MMQ_WIFI_BT_IT) || + (tdx_hw_tag.prodid == VERDIN_IMX8MMDL_WIFI_BT_IT); + } + + switch (get_pcb_revision()) { + case PCB_VERSION_1_0: + printf("Detected a V1.0 module\n"); + if (is_wifi) + strncpy(&variant[0], "wifi", sizeof(variant)); + else + strncpy(&variant[0], "nonwifi", sizeof(variant)); + break; + default: + if (is_wifi) + strncpy(&variant[0], "wifi-v1.1", sizeof(variant)); + else + strncpy(&variant[0], "nonwifi-v1.1", sizeof(variant)); + break; + } + + if (strcmp(variant, env_variant)) { + printf("Setting variant to %s\n", variant); + env_set("variant", variant); + + if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE)) + env_save(); + } +} + int board_late_init(void) { + select_dt_from_module_version(); + + return 0; +} + +int board_phys_sdram_size(phys_size_t *size) +{ + if (!size) + return -EINVAL; + + *size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); + return 0; } |