From: Suman Anna <s-a...@ti.com> Add basic support for AM64 SK. This has 2GB DDR. Note that stack for R5 SPL is in OCRAM @ 0x7000ffff so that is away from BSS and does not step on BSS section
Signed-off-by: Suman Anna <s-a...@ti.com> Signed-off-by: Aswath Govindraju <a-govindr...@ti.com> Signed-off-by: Nishanth Menon <n...@ti.com> Signed-off-by: Vignesh Raghavendra <vigne...@ti.com> --- arch/arm/mach-k3/Kconfig | 1 + board/ti/am62x/Kconfig | 63 +++++++++++ board/ti/am62x/Makefile | 8 ++ board/ti/am62x/evm.c | 149 ++++++++++++++++++++++++++ drivers/firmware/ti_sci_static_data.h | 7 ++ 5 files changed, 228 insertions(+) create mode 100644 board/ti/am62x/Kconfig create mode 100644 board/ti/am62x/Makefile create mode 100644 board/ti/am62x/evm.c diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig index 0dc4f44fdd..57f693e9a1 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -178,6 +178,7 @@ config K3_DM_FW source "board/ti/am65x/Kconfig" source "board/ti/am64x/Kconfig" +source "board/ti/am62x/Kconfig" source "board/ti/j721e/Kconfig" source "board/siemens/iot2050/Kconfig" source "board/ti/j721s2/Kconfig" diff --git a/board/ti/am62x/Kconfig b/board/ti/am62x/Kconfig new file mode 100644 index 0000000000..95eec27170 --- /dev/null +++ b/board/ti/am62x/Kconfig @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/ +# Suman Anna <s-a...@ti.com> + +choice + prompt "TI K3 AM62x based boards" + optional + +config TARGET_AM625_A53_EVM + bool "TI K3 based AM625 EVM running on A53" + select ARM64 + select SOC_K3_AM625 + imply BOARD + imply SPL_BOARD + imply TI_I2C_BOARD_DETECT + +config TARGET_AM625_R5_EVM + bool "TI K3 based AM625 EVM running on R5" + select CPU_V7R + select SYS_THUMB_BUILD + select K3_LOAD_SYSFW + select SOC_K3_AM625 + select RAM + select SPL_RAM + select K3_DDRSS + imply SYS_K3_SPL_ATF + imply TI_I2C_BOARD_DETECT + +endchoice + +if TARGET_AM625_A53_EVM + +config SYS_BOARD + default "am62x" + +config SYS_VENDOR + default "ti" + +config SYS_CONFIG_NAME + default "am62x_evm" + +source "board/ti/common/Kconfig" + +endif + +if TARGET_AM625_R5_EVM + +config SYS_BOARD + default "am62x" + +config SYS_VENDOR + default "ti" + +config SYS_CONFIG_NAME + default "am62x_evm" + +config SPL_LDSCRIPT + default "arch/arm/mach-omap2/u-boot-spl.lds" + +source "board/ti/common/Kconfig" + +endif diff --git a/board/ti/am62x/Makefile b/board/ti/am62x/Makefile new file mode 100644 index 0000000000..f4c35edffa --- /dev/null +++ b/board/ti/am62x/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/ +# Suman Anna <s-a...@ti.com> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += evm.o diff --git a/board/ti/am62x/evm.c b/board/ti/am62x/evm.c new file mode 100644 index 0000000000..cf25f0acd9 --- /dev/null +++ b/board/ti/am62x/evm.c @@ -0,0 +1,149 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board specific initialization for AM62x platforms + * + * Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/ + * Suman Anna <s-a...@ti.com> + * + */ + +#include <common.h> +#include <asm/io.h> +#include <spl.h> +#include <fdt_support.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> +#include <env.h> + +#include "../common/board_detect.h" + +#define board_is_am62x_skevm() board_ti_k3_is("AM62-SKEVM") + +DECLARE_GLOBAL_DATA_PTR; + +int board_init(void) +{ + return 0; +} + +int dram_init(void) +{ + gd->ram_size = 0x80000000; + + return 0; +} + +int dram_init_banksize(void) +{ + /* Bank 0 declares the memory available in the DDR low region */ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = 0x80000000; + gd->ram_size = 0x80000000; + + return 0; +} + +#if defined(CONFIG_SPL_LOAD_FIT) +int board_fit_config_name_match(const char *name) +{ + bool eeprom_read = board_ti_was_eeprom_read(); + + if (!eeprom_read || board_is_am62x_skevm()) { + if (!strcmp(name, "k3-am625-r5-sk") || !strcmp(name, "k3-am625-sk")) + return 0; + } + + return -1; +} +#endif + +#ifdef CONFIG_TI_I2C_BOARD_DETECT +int do_board_detect(void) +{ + int ret; + + ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS, + CONFIG_EEPROM_CHIP_ADDRESS); + if (ret) { + printf("EEPROM not available at 0x%02x, trying to read at 0x%02x\n", + CONFIG_EEPROM_CHIP_ADDRESS, CONFIG_EEPROM_CHIP_ADDRESS + 1); + ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS, + CONFIG_EEPROM_CHIP_ADDRESS + 1); + if (ret) + pr_err("Reading on-board EEPROM at 0x%02x failed %d\n", + CONFIG_EEPROM_CHIP_ADDRESS + 1, ret); + } + + return ret; +} + +int checkboard(void) +{ + struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA; + + if (!do_board_detect()) + printf("Board: %s rev %s\n", ep->name, ep->version); + + return 0; +} + +#ifdef CONFIG_BOARD_LATE_INIT +static void setup_board_eeprom_env(void) +{ + char *name = "am62x_skevm"; + + if (do_board_detect()) + goto invalid_eeprom; + + if (board_is_am62x_skevm()) + name = "am62x_skevm"; + else + printf("Unidentified board claims %s in eeprom header\n", + board_ti_get_name()); + +invalid_eeprom: + set_board_info_env_am6(name); +} + +static void setup_serial(void) +{ + struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA; + unsigned long board_serial; + char *endp; + char serial_string[17] = { 0 }; + + if (env_get("serial#")) + return; + + board_serial = simple_strtoul(ep->serial, &endp, 16); + if (*endp != '\0') { + pr_err("Error: Can't set serial# to %s\n", ep->serial); + return; + } + + snprintf(serial_string, sizeof(serial_string), "%016lx", board_serial); + env_set("serial#", serial_string); +} +#endif +#endif + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ + if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) { + struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA; + + setup_board_eeprom_env(); + setup_serial(); + /* + * The first MAC address for ethernet a.k.a. ethernet0 comes from + * efuse populated via the am654 gigabit eth switch subsystem driver. + * All the other ones are populated via EEPROM, hence continue with + * an index of 1. + */ + board_ti_am6_set_ethaddr(1, ep->mac_addr_cnt); + } + + return 0; +} +#endif diff --git a/drivers/firmware/ti_sci_static_data.h b/drivers/firmware/ti_sci_static_data.h index e6a3b66c03..21e783cc45 100644 --- a/drivers/firmware/ti_sci_static_data.h +++ b/drivers/firmware/ti_sci_static_data.h @@ -118,6 +118,13 @@ static struct ti_sci_resource_static_data rm_static_data[] = { }; #endif /* CONFIG_TARGET_J721S2_R5_EVM */ +#if IS_ENABLED(CONFIG_TARGET_AM625_R5_EVM) +static struct ti_sci_resource_static_data rm_static_data[] = { + { }, +}; + +#endif /* CONFIG_TARGET_AM625_R5_EVM */ + #else static struct ti_sci_resource_static_data rm_static_data[] = { { }, -- 2.35.3