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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>
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3 changed files with 90 additions and 1 deletions
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@ -7,3 +7,4 @@
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#include <asm/mach-imx/sys_proto.h>
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void set_wdog_reset(struct wdog_regs *wdog);
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enum boot_device get_boot_device(void);
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@ -14,6 +14,7 @@
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#include <asm/spl.h>
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#include <spl.h>
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#include <asm/mach-imx/hab.h>
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#include <asm/mach-imx/boot_mode.h>
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#include <g_dnl.h>
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DECLARE_GLOBAL_DATA_PTR;
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@ -96,6 +97,27 @@ u32 spl_boot_device(void)
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return BOOT_DEVICE_NONE;
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}
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#elif defined(CONFIG_MX7)
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/* Translate iMX7 boot device to the SPL boot device enumeration */
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u32 spl_boot_device(void)
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{
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enum boot_device boot_device_spl = get_boot_device();
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switch (boot_device_spl) {
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case SD1_BOOT:
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case MMC1_BOOT:
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return BOOT_DEVICE_MMC1;
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case SD2_BOOT:
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case MMC2_BOOT:
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return BOOT_DEVICE_MMC2;
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case SPI_NOR_BOOT:
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return BOOT_DEVICE_SPI;
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default:
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return BOOT_DEVICE_NONE;
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}
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}
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#endif /* CONFIG_MX6 || CONFIG_MX7 */
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#ifdef CONFIG_SPL_USB_GADGET_SUPPORT
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int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
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{
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@ -104,7 +126,6 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
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return 0;
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}
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#endif
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#endif
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#if defined(CONFIG_SPL_MMC_SUPPORT)
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/* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
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67
include/configs/imx7_spl.h
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67
include/configs/imx7_spl.h
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/*
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* SPL definitions for the i.MX7 SPL
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*
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* (C) Copyright 2017 CompuLab, Ltd. http://www.compulab.com
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*
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* Author: Uri Mashiach <uri.mashiach@compulab.co.il>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __IMX7_SPL_CONFIG_H
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#define __IMX7_SPL_CONFIG_H
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#ifdef CONFIG_SPL
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#define CONFIG_SPL_FRAMEWORK
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/*
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* see figure 6-22 in i.MX 7Dual/Solo Reference manuals:
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* - IMX7D/S OCRAM free area RAM (OCRAM) is from 0x00910000 to
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* 0x00946C00.
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* - Set the stack at the end of the free area section, at 0x00946BB8.
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* - The BOOT ROM loads what they consider the firmware image
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* which consists of a 4K header in front of us that contains the IVT, DCD
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* and some padding thus 'our' max size is really 0x00946BB8 - 0x00911000.
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* 64KB is more then enough for the SPL.
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*/
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#define CONFIG_SPL_TEXT_BASE 0x00911000
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#define CONFIG_SPL_MAX_SIZE 0x10000
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#define CONFIG_SPL_STACK 0x00946BB8
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/*
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* Pad SPL to 68KB (4KB header + 64KB max size). This allows to write the
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* SPL/U-Boot combination generated with u-boot-with-spl.imx directly to a
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* boot media (given that boot media specific offset is configured properly).
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*/
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#define CONFIG_SPL_PAD_TO 0x11000
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/* MMC support */
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#if defined(CONFIG_SPL_MMC_SUPPORT)
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#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
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#define CONFIG_SYS_MONITOR_LEN 409600 /* 400 KB */
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#endif
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/* SATA support */
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#if defined(CONFIG_SPL_SATA_SUPPORT)
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#define CONFIG_SPL_SATA_BOOT_DEVICE 0
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#define CONFIG_SYS_SATA_FAT_BOOT_PARTITION 1
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#endif
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/* Define the payload for FAT/EXT support */
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#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
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# ifdef CONFIG_OF_CONTROL
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# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot-dtb.img"
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# else
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# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
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# endif
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#endif
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#define CONFIG_SPL_BSS_START_ADDR 0x88200000
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#define CONFIG_SPL_BSS_MAX_SIZE 0x100000 /* 1 MB */
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#define CONFIG_SYS_SPL_MALLOC_START 0x88300000
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#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 /* 1 MB */
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#define CONFIG_SYS_TEXT_BASE 0x87800000
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#endif /* CONFIG_SPL */
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#endif /* __IMX7_SPL_CONFIG_H */
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