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imx: mx7: SPL support for i.MX7

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Add configuration file and spl_boot_device function for the i.MX7 SPL.

Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
This commit is contained in:
Uri Mashiach 2017-09-24 09:00:24 +03:00 • committed by Stefano Babic
parent 258bad41ac
commit c5c6f37a04
3 changed files with 90 additions and 1 deletions
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1
arch/arm/include/asm/arch-mx7/sys_proto.h
View file

@ -7,3 +7,4 @@
#include <asm/mach-imx/sys_proto.h>
void set_wdog_reset(struct wdog_regs *wdog);
enum boot_device get_boot_device(void);

23
arch/arm/mach-imx/spl.c
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@ -14,6 +14,7 @@
#include <asm/spl.h>
#include <spl.h>
#include <asm/mach-imx/hab.h>
#include <asm/mach-imx/boot_mode.h>
#include <g_dnl.h>
DECLARE_GLOBAL_DATA_PTR;
@ -96,6 +97,27 @@ u32 spl_boot_device(void)
return BOOT_DEVICE_NONE;
}
#elif defined(CONFIG_MX7)
/* Translate iMX7 boot device to the SPL boot device enumeration */
u32 spl_boot_device(void)
{
enum boot_device boot_device_spl = get_boot_device();
switch (boot_device_spl) {
case SD1_BOOT:
case MMC1_BOOT:
return BOOT_DEVICE_MMC1;
case SD2_BOOT:
case MMC2_BOOT:
return BOOT_DEVICE_MMC2;
case SPI_NOR_BOOT:
return BOOT_DEVICE_SPI;
default:
return BOOT_DEVICE_NONE;
}
}
#endif /* CONFIG_MX6 || CONFIG_MX7 */
#ifdef CONFIG_SPL_USB_GADGET_SUPPORT
int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
{
@ -104,7 +126,6 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
return 0;
}
#endif
#endif
#if defined(CONFIG_SPL_MMC_SUPPORT)
/* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */

67
include/configs/imx7_spl.h Normal file
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@ -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 */