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ARM: mxs: support full SPL framework

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This allows using the full SPL framework on mxs devices.  In this
mode, the u-boot.sb image loaded by the boot ROM contains only the
SPL which then loads U-Boot proper or a kernel in falcon mode.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2018-04-21 16:11:10 +01:00 committed by Stefano Babic
parent 33ea119382
commit 07a8f79ee8
6 changed files with 18 additions and 3 deletions
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2
arch/arm/Kconfig
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@ -1352,7 +1352,7 @@ source "arch/arm/Kconfig.debug"
endmenu
config SPL_LDSCRIPT
default "arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds" if ARCH_MX23 || ARCH_MX28
default "arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds" if (ARCH_MX23 || ARCH_MX28) && !SPL_FRAMEWORK
default "arch/arm/cpu/arm1136/u-boot-spl.lds" if CPU_ARM1136
default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64

4
arch/arm/cpu/arm926ejs/mxs/Makefile
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@ -14,8 +14,8 @@ obj-y += spl_boot.o spl_lradc_init.o spl_mem_init.o spl_power_init.o
endif
# Specify the target for use in elftosb call
MKIMAGE_TARGET-$(CONFIG_MX23) = mxsimage.mx23.cfg
MKIMAGE_TARGET-$(CONFIG_MX28) = mxsimage.mx28.cfg
MKIMAGE_TARGET-$(CONFIG_MX23) = mxsimage$(CONFIG_SPL_FRAMEWORK:%=-spl).mx23.cfg
MKIMAGE_TARGET-$(CONFIG_MX28) = mxsimage$(CONFIG_SPL_FRAMEWORK:%=-spl).mx28.cfg
# Generate HAB-capable IVT
#

5
arch/arm/cpu/arm926ejs/mxs/mxsimage-spl.mx23.cfg Normal file
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@ -0,0 +1,5 @@
DISPLAYPROGRESS
SECTION 0x0 BOOTABLE
TAG LAST
LOAD 0x1000 spl/u-boot-spl.bin
CALL 0x1000 0x0

6
arch/arm/cpu/arm926ejs/mxs/mxsimage-spl.mx28.cfg Normal file
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@ -0,0 +1,6 @@
DISPLAYPROGRESS
SECTION 0x0 BOOTABLE
TAG LAST
LOAD 0x1000 spl/u-boot-spl.bin
LOAD IVT 0x8000 0x1000
CALL HAB 0x8000 0x0

2
arch/arm/cpu/arm926ejs/mxs/spl_boot.c
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@ -146,6 +146,7 @@ void mxs_common_spl_init(const uint32_t arg, const uint32_t *resptr,
}
}
#ifndef CONFIG_SPL_FRAMEWORK
/* Support aparatus */
inline void board_init_f(unsigned long bootflag)
{
@ -158,3 +159,4 @@ inline void board_init_r(gd_t *id, ulong dest_addr)
for (;;)
;
}
#endif

2
include/configs/mxs.h
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@ -44,8 +44,10 @@
/* Startup hooks */
/* SPL */
#ifndef CONFIG_SPL_FRAMEWORK
#define CONFIG_SPL_NO_CPU_SUPPORT_CODE
#define CONFIG_SPL_START_S_PATH "arch/arm/cpu/arm926ejs/mxs"
#endif
/* Memory sizes */
#define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for malloc */