board: st: add generic board for STM32MP1 family
Add first support for STM32MP157C-ED1 board with "Basic" boot chain
1/ Boot Rom: load SPL with STM32 image header in SYSRAM
2/ SPL: power up and initialize the DDR and load U-Boot image
from SDCARD in DDR
3/ U-Boot: search and load extlinux.conf in SDCARD
(DISTRO activated)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h
new file mode 100644
index 0000000..aae2cb8
--- /dev/null
+++ b/include/configs/stm32mp1.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
+ *
+ * Configuration settings for the STM32MP15x CPU
+ *
+ * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+#include <linux/sizes.h>
+#include <asm/arch/stm32.h>
+
+#define CONFIG_PREBOOT
+
+/*
+ * Number of clock ticks in 1 sec
+ */
+#define CONFIG_SYS_HZ 1000
+#define CONFIG_SYS_ARCH_TIMER
+#define CONFIG_SYS_HZ_CLOCK 64000000
+
+/*
+ * malloc() pool size
+ */
+#define CONFIG_SYS_MALLOC_LEN SZ_32M
+
+/*
+ * Configuration of the external SRAM memory used by U-Boot
+ */
+#define CONFIG_SYS_SDRAM_BASE STM32_DDR_BASE
+#define CONFIG_SYS_INIT_SP_ADDR CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_NR_DRAM_BANKS 1
+
+/*
+ * Console I/O buffer size
+ */
+#define CONFIG_SYS_CBSIZE SZ_1K
+
+/*
+ * Needed by "loadb"
+ */
+#define CONFIG_SYS_LOAD_ADDR STM32_DDR_BASE
+
+/*
+ * Env parameters
+ */
+#define CONFIG_ENV_SIZE SZ_4K
+
+/* ATAGs */
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+
+/* SPL support */
+#ifdef CONFIG_SPL
+/* BOOTROM load address */
+#define CONFIG_SPL_TEXT_BASE 0x2FFC2500
+/* SPL use DDR */
+#define CONFIG_SPL_BSS_START_ADDR 0xC0200000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000
+#define CONFIG_SYS_SPL_MALLOC_START 0xC0300000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000
+
+/* limit SYSRAM usage to first 128 KB */
+#define CONFIG_SPL_MAX_SIZE 0x00020000
+#define CONFIG_SPL_STACK (STM32_SYSRAM_BASE + \
+ STM32_SYSRAM_SIZE)
+#endif /* #ifdef CONFIG_SPL */
+
+/*MMC SD*/
+#define CONFIG_SYS_MMC_MAX_DEVICE 3
+
+#if !defined(CONFIG_SPL) || !defined(CONFIG_SPL_BUILD)
+
+#define BOOT_TARGET_DEVICES(func) \
+ func(MMC, mmc, 1) \
+ func(MMC, mmc, 0) \
+ func(MMC, mmc, 2)
+
+#include <config_distro_bootcmd.h>
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "scriptaddr=0xC0000000\0" \
+ "pxefile_addr_r=0xC0000000\0" \
+ "kernel_addr_r=0xC1000000\0" \
+ "fdt_addr_r=0xC4000000\0" \
+ "ramdisk_addr_r=0xC4100000\0" \
+ "fdt_high=0xffffffff\0" \
+ "initrd_high=0xffffffff\0" \
+ BOOTENV
+
+#endif /* ifndef CONFIG_SPL_BUILD */
+
+#endif /* __CONFIG_H */