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arm: xea: Modify board code to generate single binary u-boot

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This change provides the possibility to build XEA (imx287 based) board
U-Boot as a single binary (without support for CONFIG_SPL_FRAMEWORK).

The generated u-boot.sb can be used in the factory environment to for
example perform initial setup or HW testing.

It can be used with 'uuu' utility
(SDPS: boot -f /srv/tftp/xea/u-boot.sb)

In the configs/imx28_xea_defconfig one needs to disable following configs:
# CONFIG_SPL_BLK is not set
# CONFIG_SPL_FRAMEWORK is not set

The board_init_ll() is used in arch/arm/cpu/arm926ejs/mxs/start.S, which
is utilized when CONFIG_SPL_FRAMEWORK is disabled.

However, when it is enabled - the arch/arm/cpu/arm926ejs/start.S is used,
which requires the lowlevel_init() function.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2021-12-27 11:38:21 +01:00 committed by Stefano Babic
parent 014315b2d8
commit 8bba8954b1
2 changed files with 8 additions and 1 deletions
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7
board/liebherr/xea/spl_xea.c
View File

@ -290,6 +290,12 @@ u32 mxs_dram_vals[] = {
0x00000000, 0xffffffff
};
#ifndef CONFIG_SPL_FRAMEWORK
void board_init_ll(const u32 arg, const uint32_t *resptr)
{
mxs_common_spl_init(arg, resptr, iomux_setup, ARRAY_SIZE(iomux_setup));
}
#else
void lowlevel_init(void)
{
struct mxs_pinctrl_regs *pinctrl_regs =
@ -301,3 +307,4 @@ void lowlevel_init(void)
mxs_common_spl_init(0, NULL, iomux_setup, ARRAY_SIZE(iomux_setup));
}
#endif

2
board/liebherr/xea/xea.c
View File

@ -58,7 +58,7 @@ static void init_clocks(void)
mxs_set_sspclk(MXC_SSPCLK3, 96000, 0);
}
#ifdef CONFIG_SPL_BUILD
#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_FRAMEWORK)
void board_init_f(ulong arg)
{
init_clocks();