Use content of EEPROM to detect the actual RAM size and adjust DDR timings, size and banks accordingly. Also enable the SoM detection per default in the defconfigs.
Signed-off-by: Wadim Egorov w.egorov@phytec.de --- board/phytec/common/am6_som_detection.h | 8 + board/phytec/phycore_am62x/phycore-am62x.c | 152 ++++++++++++- board/phytec/phycore_am62x/phycore-ddr-data.h | 206 ++++++++++++++++++ configs/phycore_am62x_a53_defconfig | 4 + configs/phycore_am62x_r5_defconfig | 4 + 5 files changed, 372 insertions(+), 2 deletions(-) create mode 100644 board/phytec/phycore_am62x/phycore-ddr-data.h
diff --git a/board/phytec/common/am6_som_detection.h b/board/phytec/common/am6_som_detection.h index 032f9da3aab..c5c6e179da6 100644 --- a/board/phytec/common/am6_som_detection.h +++ b/board/phytec/common/am6_som_detection.h @@ -9,11 +9,19 @@
#include "phytec_som_detection.h"
+#define EEPROM_ADDR 0x50 #define PHYTEC_AM62X_SOM 71 #define PHYTEC_AM64X_SOM 72 #define PHYTEC_EEPROM_VALUE_X 0x21 #define PHYTEC_EEPROM_NOR_FLASH_64MB_QSPI 0xC
+enum { + EEPROM_RAM_SIZE_512MB = 0, + EEPROM_RAM_SIZE_1GB = 1, + EEPROM_RAM_SIZE_2GB = 2, + EEPROM_RAM_SIZE_4GB = 4 +}; + int __maybe_unused phytec_am6_detect(struct phytec_eeprom_data *data); u8 __maybe_unused phytec_get_am6_ddr_size(struct phytec_eeprom_data *data); u8 __maybe_unused phytec_get_am6_spi(struct phytec_eeprom_data *data); diff --git a/board/phytec/phycore_am62x/phycore-am62x.c b/board/phytec/phycore_am62x/phycore-am62x.c index a082b886bda..4a76f1343d7 100644 --- a/board/phytec/phycore_am62x/phycore-am62x.c +++ b/board/phytec/phycore_am62x/phycore-am62x.c @@ -8,6 +8,13 @@ #include <spl.h> #include <fdt_support.h>
+#include "phycore-ddr-data.h" +#include "../common/k3/k3_ddrss_patch.h" +#include "../common/am6_som_detection.h" + +#define AM64_DDRSS_SS_BASE 0x0F300000 +#define DDRSS_V2A_CTL_REG 0x0020 + DECLARE_GLOBAL_DATA_PTR;
int board_init(void) @@ -15,16 +22,157 @@ int board_init(void) return 0; }
+static u8 phytec_get_am62_ddr_size_default(void) +{ + int ret; + struct phytec_eeprom_data data; + + if (IS_ENABLED(CONFIG_PHYCORE_AM62X_RAM_SIZE_FIX)) { + if (IS_ENABLED(CONFIG_PHYCORE_AM62X_RAM_SIZE_1GB)) + return EEPROM_RAM_SIZE_1GB; + else if (IS_ENABLED(CONFIG_PHYCORE_AM62X_RAM_SIZE_2GB)) + return EEPROM_RAM_SIZE_2GB; + else if (IS_ENABLED(CONFIG_PHYCORE_AM62X_RAM_SIZE_4GB)) + return EEPROM_RAM_SIZE_4GB; + } + + ret = phytec_eeprom_data_setup(&data, 0, EEPROM_ADDR); + if (!ret && data.valid) + return phytec_get_am6_ddr_size(&data); + + /* Default DDR size is 2GB */ + return EEPROM_RAM_SIZE_2GB; +} + int dram_init(void) { - return fdtdec_setup_mem_size_base(); + u8 ram_size = phytec_get_am62_ddr_size_default(); + + /* + * HACK: ddrss driver support 2GB RAM by default + * V2A_CTL_REG should be updated to support other RAM size + */ + if (IS_ENABLED(CONFIG_K3_AM64_DDRSS)) + if (ram_size == EEPROM_RAM_SIZE_4GB) + writel(0x00000210, AM64_DDRSS_SS_BASE + DDRSS_V2A_CTL_REG); + + switch (ram_size) { + case EEPROM_RAM_SIZE_1GB: + gd->ram_size = 0x40000000; + break; + case EEPROM_RAM_SIZE_2GB: + gd->ram_size = 0x80000000; + break; + case EEPROM_RAM_SIZE_4GB: +#ifdef CONFIG_PHYS_64BIT + gd->ram_size = 0x100000000; +#else + gd->ram_size = 0x80000000; +#endif + break; + default: + gd->ram_size = 0x80000000; + } + + return 0; +} + +phys_size_t board_get_usable_ram_top(phys_size_t total_size) +{ +#ifdef CONFIG_PHYS_64BIT + /* Limit RAM used by U-Boot to the DDR low region */ + if (gd->ram_top > 0x100000000) + return 0x100000000; +#endif + return gd->ram_top; }
int dram_init_banksize(void) { - return fdtdec_setup_memory_banksize(); + u8 ram_size; + + ram_size = phytec_get_am62_ddr_size_default(); + switch (ram_size) { + case EEPROM_RAM_SIZE_1GB: + gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = 0x40000000; + gd->ram_size = 0x40000000; + break; + + case EEPROM_RAM_SIZE_2GB: + gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = 0x80000000; + gd->ram_size = 0x80000000; + break; + + case EEPROM_RAM_SIZE_4GB: + /* Bank 0 declares the memory available in the DDR low region */ + gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = 0x80000000; + gd->ram_size = 0x80000000; + +#ifdef CONFIG_PHYS_64BIT + /* Bank 1 declares the memory available in the DDR upper region */ + gd->bd->bi_dram[1].start = 0x880000000; + gd->bd->bi_dram[1].size = 0x80000000; + gd->ram_size = 0x100000000; +#endif + break; + default: + /* Continue with default 2GB setup */ + gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = 0x80000000; + gd->ram_size = 0x80000000; + printf("DDR size %d is not supported\n", ram_size); + } + + return 0; +} + +#if defined(CONFIG_K3_DDRSS) +int update_ddrss_timings(void) +{ + int ret; + u8 ram_size; + struct ddrss *ddr_patch = NULL; + void *fdt = (void *)gd->fdt_blob; + + ram_size = phytec_get_am62_ddr_size_default(); + switch (ram_size) { + case EEPROM_RAM_SIZE_1GB: + ddr_patch = &phycore_ddrss_data[PHYCORE_1GB]; + break; + case EEPROM_RAM_SIZE_2GB: + ddr_patch = NULL; + break; + case EEPROM_RAM_SIZE_4GB: + ddr_patch = &phycore_ddrss_data[PHYCORE_4GB]; + break; + default: + break; + } + + /* Nothing to patch */ + if (!ddr_patch) + return 0; + + debug("Applying DDRSS timings patch for ram_size %d\n", ram_size); + + ret = fdt_apply_ddrss_timings_patch(fdt, ddr_patch); + if (ret < 0) { + printf("Failed to apply ddrs timings patch %d\n", ret); + return ret; + } + + return 0; }
+int do_board_detect(void) +{ + return update_ddrss_timings(); +} +#endif + #define CTRLMMR_USB0_PHY_CTRL 0x43004008 #define CTRLMMR_USB1_PHY_CTRL 0x43004018 #define CORE_VOLTAGE 0x80000000 diff --git a/board/phytec/phycore_am62x/phycore-ddr-data.h b/board/phytec/phycore_am62x/phycore-ddr-data.h new file mode 100644 index 00000000000..fe6eccd959e --- /dev/null +++ b/board/phytec/phycore_am62x/phycore-ddr-data.h @@ -0,0 +1,206 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2024 PHYTEC Messtechnik GmbH + * Author: Wadim Egorov w.egorov@phytec.de + */ + +#ifndef PHYCORE_DDR_DATA +#define PHYCORE_DDR_DATA + +#include "../common/k3/k3_ddrss_patch.h" + +/* 1 GB variant delta */ +struct ddr_reg ddr_1gb_ctl_regs[] = { + { 55, 0x0400DB60 }, + { 58, 0x0400DB60 }, + { 61, 0x0400DB60 }, + { 73, 0x00001860 }, + { 75, 0x00001860 }, + { 77, 0x00001860 }, + { 119, 0x00061800 }, + { 120, 0x00061800 }, + { 121, 0x00061800 }, + { 122, 0x00061800 }, + { 123, 0x00061800 }, + { 125, 0x0000AAA0 }, + { 126, 0x00061800 }, + { 127, 0x00061800 }, + { 128, 0x00061800 }, + { 129, 0x00061800 }, + { 130, 0x00061800 }, + { 132, 0x0000AAA0 }, + { 133, 0x00061800 }, + { 134, 0x00061800 }, + { 135, 0x00061800 }, + { 136, 0x00061800 }, + { 137, 0x00061800 }, + { 139, 0x0000AAA0 }, + { 206, 0x00000000 }, + { 209, 0x00000000 }, + { 212, 0x00000000 }, + { 215, 0x00000000 }, + { 218, 0x00000000 }, + { 221, 0x00000000 }, + { 230, 0x00000000 }, + { 231, 0x00000000 }, + { 232, 0x00000000 }, + { 233, 0x00000000 }, + { 234, 0x00000000 }, + { 235, 0x00000000 }, + { 316, 0x01010000 }, + { 318, 0x3FFF0000 }, + { 327, 0x00000C01 }, + { 328, 0x00000000 }, + { 385, 0x000030C0 }, + { 390, 0x0000DB60 }, + { 391, 0x0001E780 }, + { 394, 0x000030C0 }, + { 399, 0x0000DB60 }, + { 400, 0x0001E780 }, + { 403, 0x000030C0 }, + { 408, 0x0000DB60 }, + { 409, 0x0001E780 } +}; + +struct ddr_reg ddr_1gb_pi_regs[] = { + { 77, 0x04000100 }, + { 176, 0x00001860 }, + { 178, 0x00001860 }, + { 180, 0x04001860 }, + { 233, 0x0000C570 }, + { 238, 0x0000C570 }, + { 243, 0x0000C570 }, + { 247, 0x000030C0 }, + { 248, 0x0001E780 }, + { 249, 0x000030C0 }, + { 250, 0x0001E780 }, + { 251, 0x000030C0 }, + { 252, 0x0001E780 }, + { 299, 0x00000000 }, + { 301, 0x00000000 }, + { 307, 0x00000000 }, + { 309, 0x00000000 }, + { 315, 0x00000000 }, + { 317, 0x00000000 }, + { 323, 0x00000000 }, + { 325, 0x00000000 }, + { 331, 0x00000000 }, + { 333, 0x00000000 }, + { 339, 0x00000000 }, + { 341, 0x00000000 } +}; + +struct ddr_reg ddr_1gb_phy_regs[] = { + { 1371, 0x0001F7C2 }, +}; + +/* 4 GB variant delta */ +struct ddr_reg ddr_4gb_ctl_regs[] = { + { 55, 0x0400DB60 }, + { 58, 0x0400DB60 }, + { 61, 0x0400DB60 }, + { 73, 0x00001860 }, + { 75, 0x00001860 }, + { 77, 0x00001860 }, + { 119, 0x00061800 }, + { 120, 0x00061800 }, + { 121, 0x00061800 }, + { 122, 0x00061800 }, + { 123, 0x00061800 }, + { 125, 0x0000AAA0 }, + { 126, 0x00061800 }, + { 127, 0x00061800 }, + { 128, 0x00061800 }, + { 129, 0x00061800 }, + { 130, 0x00061800 }, + { 132, 0x0000AAA0 }, + { 133, 0x00061800 }, + { 134, 0x00061800 }, + { 135, 0x00061800 }, + { 136, 0x00061800 }, + { 137, 0x00061800 }, + { 139, 0x0000AAA0 }, + { 206, 0x00000000 }, + { 209, 0x00000000 }, + { 212, 0x00000000 }, + { 215, 0x00000000 }, + { 218, 0x00000000 }, + { 221, 0x00000000 }, + { 230, 0x00000000 }, + { 231, 0x00000000 }, + { 232, 0x00000000 }, + { 233, 0x00000000 }, + { 234, 0x00000000 }, + { 235, 0x00000000 }, + { 316, 0x00000000 }, + { 318, 0x7FFF0000 }, + { 327, 0x01000C01 }, + { 328, 0x00000001 }, + { 385, 0x000030C0 }, + { 390, 0x0000DB60 }, + { 391, 0x0001E780 }, + { 394, 0x000030C0 }, + { 399, 0x0000DB60 }, + { 400, 0x0001E780 }, + { 403, 0x000030C0 }, + { 408, 0x0000DB60 }, + { 409, 0x0001E780 } +}; + +struct ddr_reg ddr_4gb_pi_regs[] = { + { 77, 0x04000000 }, + { 176, 0x00001860 }, + { 178, 0x00001860 }, + { 180, 0x04001860 }, + { 233, 0x0000C570 }, + { 238, 0x0000C570 }, + { 243, 0x0000C570 }, + { 247, 0x000030C0 }, + { 248, 0x0001E780 }, + { 249, 0x000030C0 }, + { 250, 0x0001E780 }, + { 251, 0x000030C0 }, + { 252, 0x0001E780 }, + { 299, 0x00000000 }, + { 301, 0x00000000 }, + { 307, 0x00000000 }, + { 309, 0x00000000 }, + { 315, 0x00000000 }, + { 317, 0x00000000 }, + { 323, 0x00000000 }, + { 325, 0x00000000 }, + { 331, 0x00000000 }, + { 333, 0x00000000 }, + { 339, 0x00000000 }, + { 341, 0x00000000 } +}; + +struct ddr_reg ddr_4gb_phy_regs[] = { + { 1371, 0x0001F7C2 }, +}; + +enum { + PHYCORE_1GB, + PHYCORE_4GB, +}; + +struct ddrss phycore_ddrss_data[] = { + [PHYCORE_1GB] = { + .ctl_regs = &ddr_1gb_ctl_regs[0], + .ctl_regs_num = ARRAY_SIZE(ddr_1gb_ctl_regs), + .pi_regs = &ddr_1gb_pi_regs[0], + .pi_regs_num = ARRAY_SIZE(ddr_1gb_pi_regs), + .phy_regs = &ddr_1gb_phy_regs[0], + .phy_regs_num = ARRAY_SIZE(ddr_1gb_phy_regs), + }, + [PHYCORE_4GB] = { + .ctl_regs = &ddr_4gb_ctl_regs[0], + .ctl_regs_num = ARRAY_SIZE(ddr_4gb_ctl_regs), + .pi_regs = &ddr_4gb_pi_regs[0], + .pi_regs_num = ARRAY_SIZE(ddr_4gb_pi_regs), + .phy_regs = &ddr_4gb_phy_regs[0], + .phy_regs_num = ARRAY_SIZE(ddr_4gb_phy_regs), + }, +}; + +#endif /* PHYCORE_DDR_DATA */ diff --git a/configs/phycore_am62x_a53_defconfig b/configs/phycore_am62x_a53_defconfig index fd36edc29dd..145887c0286 100644 --- a/configs/phycore_am62x_a53_defconfig +++ b/configs/phycore_am62x_a53_defconfig @@ -5,6 +5,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_NR_DRAM_BANKS=2 CONFIG_SOC_K3_AM625=y +CONFIG_PHYTEC_SOM_DETECTION=y CONFIG_TARGET_PHYCORE_AM62X_A53=y CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80b80000 @@ -45,6 +46,7 @@ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x1400 CONFIG_SPL_ENV_SUPPORT=y CONFIG_SPL_FS_LOAD_PAYLOAD_NAME="u-boot.img" +CONFIG_SPL_I2C=y CONFIG_SPL_DM_MAILBOX=y CONFIG_SPL_DM_SPI_FLASH=y CONFIG_SPL_POWER_DOMAIN=y @@ -73,6 +75,8 @@ CONFIG_CLK_TI_SCI=y CONFIG_DMA_CHANNELS=y CONFIG_TI_K3_NAVSS_UDMA=y CONFIG_TI_SCI_PROTOCOL=y +CONFIG_DM_I2C=y +CONFIG_SYS_I2C_OMAP24XX=y CONFIG_DM_MAILBOX=y CONFIG_K3_SEC_PROXY=y CONFIG_SUPPORT_EMMC_BOOT=y diff --git a/configs/phycore_am62x_r5_defconfig b/configs/phycore_am62x_r5_defconfig index 389672d5227..0062a4e3569 100644 --- a/configs/phycore_am62x_r5_defconfig +++ b/configs/phycore_am62x_r5_defconfig @@ -6,6 +6,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_NR_DRAM_BANKS=2 CONFIG_SOC_K3_AM625=y +CONFIG_PHYTEC_SOM_DETECTION=y CONFIG_TARGET_PHYCORE_AM62X_R5=y CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x43c3a7f0 @@ -50,6 +51,7 @@ CONFIG_SPL_SYS_MALLOC_SIZE=0x1000000 CONFIG_SPL_EARLY_BSS=y CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x400 +CONFIG_SPL_I2C=y CONFIG_SPL_DM_MAILBOX=y CONFIG_SPL_DM_SPI_FLASH=y CONFIG_SPL_DM_RESET=y @@ -88,6 +90,7 @@ CONFIG_SPL_CLK_K3_PLL=y CONFIG_SPL_CLK_K3=y CONFIG_TI_SCI_PROTOCOL=y CONFIG_DA8XX_GPIO=y +CONFIG_DM_I2C=y CONFIG_DM_MAILBOX=y CONFIG_K3_SEC_PROXY=y CONFIG_SPL_MISC=y @@ -129,3 +132,4 @@ CONFIG_SPL_TIMER=y CONFIG_OMAP_TIMER=y CONFIG_LIB_RATIONAL=y CONFIG_SPL_LIB_RATIONAL=y +CONFIG_SYS_I2C_OMAP24XX=y