diff options
Diffstat (limited to 'board/phytec/phycore_imx93/spl.c')
| -rw-r--r-- | board/phytec/phycore_imx93/spl.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/board/phytec/phycore_imx93/spl.c b/board/phytec/phycore_imx93/spl.c index 17a8736c73f..a4d2aaac320 100644 --- a/board/phytec/phycore_imx93/spl.c +++ b/board/phytec/phycore_imx93/spl.c @@ -3,6 +3,7 @@ * Copyright (C) 2023 PHYTEC Messtechnik GmbH * Author: Christoph Stoidner <c.stoidner@phytec.de> * Copyright (C) 2024 Mathieu Othacehe <m.othacehe@gmail.com> + * Copyright (C) 2024 PHYTEC Messtechnik GmbH */ #include <asm/arch/clock.h> @@ -20,6 +21,8 @@ #include <power/pca9450.h> #include <spl.h> +#include "../common/imx93_som_detection.h" + DECLARE_GLOBAL_DATA_PTR; /* @@ -27,6 +30,13 @@ DECLARE_GLOBAL_DATA_PTR; * when pca9451a support is added. */ #define PCA9450_REG_PWRCTRL_TOFF_DEB BIT(5) +#define EEPROM_ADDR 0x50 + +/* + * Prototypes of automatically generated ram config file + */ +void set_dram_timings_2gb_lpddr4x(void); +void set_dram_timings_1gb_lpddr4x_900mhz(void); int spl_board_boot_device(enum boot_device boot_dev_spl) { @@ -46,6 +56,44 @@ void spl_board_init(void) void spl_dram_init(void) { + int ret; + enum phytec_imx93_ddr_eeprom_code ddr_opt = PHYTEC_IMX93_DDR_INVALID; + + /* NOTE: In SPL lpi2c3 is mapped to bus 0 */ + ret = phytec_eeprom_data_setup(NULL, 0, EEPROM_ADDR); + if (ret && !IS_ENABLED(CONFIG_PHYCORE_IMX93_RAM_TYPE_FIX)) + goto out; + + ret = phytec_imx93_detect(NULL); + if (!ret) + phytec_print_som_info(NULL); + + if (IS_ENABLED(CONFIG_PHYCORE_IMX93_RAM_TYPE_FIX)) { + if (IS_ENABLED(CONFIG_PHYCORE_IMX93_RAM_TYPE_LPDDR4X_1GB)) + ddr_opt = PHYTEC_IMX93_LPDDR4X_1GB; + else if (IS_ENABLED(CONFIG_PHYCORE_IMX93_RAM_TYPE_LPDDR4X_2GB)) + ddr_opt = PHYTEC_IMX93_LPDDR4X_2GB; + } else { + ddr_opt = phytec_imx93_get_opt(NULL, PHYTEC_IMX93_OPT_DDR); + } + + switch (ddr_opt) { + case PHYTEC_IMX93_LPDDR4X_1GB: + if (is_voltage_mode(VOLT_LOW_DRIVE)) + set_dram_timings_1gb_lpddr4x_900mhz(); + break; + case PHYTEC_IMX93_LPDDR4X_2GB: + set_dram_timings_2gb_lpddr4x(); + break; + default: + goto out; + } + ddr_init(&dram_timing); + return; +out: + puts("Could not detect correct RAM type and size. Fall back to default.\n"); + if (is_voltage_mode(VOLT_LOW_DRIVE)) + set_dram_timings_1gb_lpddr4x_900mhz(); ddr_init(&dram_timing); } |