imx: mx7: SPL support for i.MX7
Add configuration file and spl_boot_device function for the i.MX7 SPL.
Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
diff --git a/include/configs/imx7_spl.h b/include/configs/imx7_spl.h
new file mode 100644
index 0000000..e562cdb
--- /dev/null
+++ b/include/configs/imx7_spl.h
@@ -0,0 +1,67 @@
+/*
+ * SPL definitions for the i.MX7 SPL
+ *
+ * (C) Copyright 2017 CompuLab, Ltd. http://www.compulab.com
+ *
+ * Author: Uri Mashiach <uri.mashiach@compulab.co.il>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __IMX7_SPL_CONFIG_H
+#define __IMX7_SPL_CONFIG_H
+
+#ifdef CONFIG_SPL
+
+#define CONFIG_SPL_FRAMEWORK
+
+/*
+ * see figure 6-22 in i.MX 7Dual/Solo Reference manuals:
+ * - IMX7D/S OCRAM free area RAM (OCRAM) is from 0x00910000 to
+ * 0x00946C00.
+ * - Set the stack at the end of the free area section, at 0x00946BB8.
+ * - The BOOT ROM loads what they consider the firmware image
+ * which consists of a 4K header in front of us that contains the IVT, DCD
+ * and some padding thus 'our' max size is really 0x00946BB8 - 0x00911000.
+ * 64KB is more then enough for the SPL.
+ */
+#define CONFIG_SPL_TEXT_BASE 0x00911000
+#define CONFIG_SPL_MAX_SIZE 0x10000
+#define CONFIG_SPL_STACK 0x00946BB8
+/*
+ * Pad SPL to 68KB (4KB header + 64KB max size). This allows to write the
+ * SPL/U-Boot combination generated with u-boot-with-spl.imx directly to a
+ * boot media (given that boot media specific offset is configured properly).
+ */
+#define CONFIG_SPL_PAD_TO 0x11000
+
+/* MMC support */
+#if defined(CONFIG_SPL_MMC_SUPPORT)
+#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
+#define CONFIG_SYS_MONITOR_LEN 409600 /* 400 KB */
+#endif
+
+/* SATA support */
+#if defined(CONFIG_SPL_SATA_SUPPORT)
+#define CONFIG_SPL_SATA_BOOT_DEVICE 0
+#define CONFIG_SYS_SATA_FAT_BOOT_PARTITION 1
+#endif
+
+/* Define the payload for FAT/EXT support */
+#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
+# ifdef CONFIG_OF_CONTROL
+# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot-dtb.img"
+# else
+# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
+# endif
+#endif
+
+#define CONFIG_SPL_BSS_START_ADDR 0x88200000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x100000 /* 1 MB */
+#define CONFIG_SYS_SPL_MALLOC_START 0x88300000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 /* 1 MB */
+#define CONFIG_SYS_TEXT_BASE 0x87800000
+
+#endif /* CONFIG_SPL */
+
+#endif /* __IMX7_SPL_CONFIG_H */