[PATCH 11/17] board: ti: am64x: Add board support for am64x evm
Dave Gerlach
d-gerlach at ti.com
Fri Apr 23 18:27:42 CEST 2021
Add board specific initialization for am64x based boards.
Signed-off-by: Dave Gerlach <d-gerlach at ti.com>
---
arch/arm/mach-k3/Kconfig | 1 +
board/ti/am64x/Kconfig | 53 ++++++++++++++++++
board/ti/am64x/Makefile | 8 +++
board/ti/am64x/evm.c | 48 +++++++++++++++++
include/configs/am64x_evm.h | 105 ++++++++++++++++++++++++++++++++++++
5 files changed, 215 insertions(+)
create mode 100644 board/ti/am64x/Kconfig
create mode 100644 board/ti/am64x/Makefile
create mode 100644 board/ti/am64x/evm.c
create mode 100644 include/configs/am64x_evm.h
diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig
index 35edc6d8eeb8..bfbce44bfa59 100644
--- a/arch/arm/mach-k3/Kconfig
+++ b/arch/arm/mach-k3/Kconfig
@@ -148,5 +148,6 @@ config SYS_K3_SPL_ATF
after SPL from R5.
source "board/ti/am65x/Kconfig"
+source "board/ti/am64x/Kconfig"
source "board/ti/j721e/Kconfig"
endif
diff --git a/board/ti/am64x/Kconfig b/board/ti/am64x/Kconfig
new file mode 100644
index 000000000000..a49e22266983
--- /dev/null
+++ b/board/ti/am64x/Kconfig
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
+
+choice
+ prompt "K3 AM64 based boards"
+ optional
+
+config TARGET_AM642_A53_EVM
+ bool "TI K3 based AM642 EVM running on A53"
+ select ARM64
+ select SOC_K3_AM642
+ imply BOARD
+ imply SPL_BOARD
+
+config TARGET_AM642_R5_EVM
+ bool "TI K3 based AM642 EVM running on R5"
+ select CPU_V7R
+ select SYS_THUMB_BUILD
+ select K3_LOAD_SYSFW
+ select SOC_K3_AM642
+ imply SYS_K3_SPL_ATF
+
+endchoice
+
+if TARGET_AM642_A53_EVM
+
+config SYS_BOARD
+ default "am64x"
+
+config SYS_VENDOR
+ default "ti"
+
+config SYS_CONFIG_NAME
+ default "am64x_evm"
+
+endif
+
+if TARGET_AM642_R5_EVM
+
+config SYS_BOARD
+ default "am64x"
+
+config SYS_VENDOR
+ default "ti"
+
+config SYS_CONFIG_NAME
+ default "am64x_evm"
+
+config SPL_LDSCRIPT
+ default "arch/arm/mach-omap2/u-boot-spl.lds"
+
+endif
diff --git a/board/ti/am64x/Makefile b/board/ti/am64x/Makefile
new file mode 100644
index 000000000000..71bdca7d9592
--- /dev/null
+++ b/board/ti/am64x/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
+# Keerthy <j-keerthy at ti.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += evm.o
diff --git a/board/ti/am64x/evm.c b/board/ti/am64x/evm.c
new file mode 100644
index 000000000000..147fe5488a63
--- /dev/null
+++ b/board/ti/am64x/evm.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Board specific initialization for AM642 EVM
+ *
+ * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
+ * Keerthy <j-keerthy at ti.com>
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <spl.h>
+
+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)
+{
+#if defined(CONFIG_TARGET_AM642_A53_EVM)
+ if (!strcmp(name, "k3-am642-evm"))
+ return 0;
+#endif
+
+ return -1;
+}
+#endif
diff --git a/include/configs/am64x_evm.h b/include/configs/am64x_evm.h
new file mode 100644
index 000000000000..4f710181b31b
--- /dev/null
+++ b/include/configs/am64x_evm.h
@@ -0,0 +1,105 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration header file for K3 AM642 SoC family
+ *
+ * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
+ * Keerthy <j-keerthy at ti.com>
+ */
+
+#ifndef __CONFIG_AM642_EVM_H
+#define __CONFIG_AM642_EVM_H
+
+#include <linux/sizes.h>
+#include <config_distro_bootcmd.h>
+#include <environment/ti/mmc.h>
+
+/* DDR Configuration */
+#define CONFIG_SYS_SDRAM_BASE1 0x880000000
+
+#ifdef CONFIG_SYS_K3_SPL_ATF
+#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "tispl.bin"
+#endif
+
+#ifndef CONFIG_CPU_V7R
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
+
+#define CONFIG_SPL_MAX_SIZE CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
+#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \
+ CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE - 4)
+/*
+ * Maximum size in memory allocated to the SPL BSS. Keep it as tight as
+ * possible (to allow the build to go through), as this directly affects
+ * our memory footprint. The less we use for BSS the more we have available
+ * for everything else.
+ */
+#define CONFIG_SPL_BSS_MAX_SIZE 0x5000
+/*
+ * Link BSS to be within SPL in a dedicated region located near the top of
+ * the MCU SRAM, this way making it available also before relocation. Note
+ * that we are not using the actual top of the MCU SRAM as there is a memory
+ * location filled in by the boot ROM that we want to read out without any
+ * interference from the C context.
+ */
+#define CONFIG_SPL_BSS_START_ADDR (CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX -\
+ CONFIG_SPL_BSS_MAX_SIZE)
+/* Configure R5 SPL post-relocation malloc pool in DDR */
+#define CONFIG_SYS_SPL_MALLOC_START 0x84000000
+#define CONFIG_SYS_SPL_MALLOC_SIZE SZ_16M
+
+#define PARTS_DEFAULT \
+ /* Linux partitions */ \
+ "name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}\0"
+
+/* U-Boot general configuration */
+#define EXTRA_ENV_AM642_BOARD_SETTINGS \
+ "default_device_tree=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
+ "findfdt=" \
+ "setenv name_fdt ${default_device_tree};" \
+ "setenv fdtfile ${name_fdt}\0" \
+ "name_kern=Image\0" \
+ "console=ttyS2,115200n8\0" \
+ "args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 " \
+ "${mtdparts}\0" \
+ "run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
+
+/* U-Boot MMC-specific configuration */
+#define EXTRA_ENV_AM642_BOARD_SETTINGS_MMC \
+ "boot=mmc\0" \
+ "mmcdev=1\0" \
+ "bootpart=1:2\0" \
+ "bootdir=/boot\0" \
+ "rd_spec=-\0" \
+ "init_mmc=run args_all args_mmc\0" \
+ "get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0" \
+ "get_overlay_mmc=" \
+ "fdt address ${fdtaddr};" \
+ "fdt resize 0x100000;" \
+ "for overlay in $name_overlays;" \
+ "do;" \
+ "load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && " \
+ "fdt apply ${dtboaddr};" \
+ "done;\0" \
+ "get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \
+ "${bootdir}/${name_kern}\0" \
+ "get_fit_mmc=load mmc ${bootpart} ${addr_fit} " \
+ "${bootdir}/${name_fit}\0" \
+ "partitions=" PARTS_DEFAULT
+
+/* Incorporate settings into the U-Boot environment */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ DEFAULT_LINUX_BOOT_ENV \
+ DEFAULT_MMC_TI_ARGS \
+ EXTRA_ENV_AM642_BOARD_SETTINGS \
+ EXTRA_ENV_AM642_BOARD_SETTINGS_MMC
+
+/* Now for the remaining common defines */
+#include <configs/ti_armv7_common.h>
+
+/* MMC ENV related defines */
+#ifdef CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV 0
+#define CONFIG_SYS_MMC_ENV_PART 1
+#endif
+
+#endif /* __CONFIG_AM642_EVM_H */
--
2.28.0
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