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arm: omap: Detect boot mode very early

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ROM stores the boot params information in a known location
and passes it to SPL. This information needs to be copied
very early during boot or else there is a chance of getting
corrupted by SPL. So move this boot device detection very early
during boot.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Lokesh Vutla 2017-06-27 13:50:56 +05:30 • committed by Tom Rini
parent d754254f20
commit 4bd754d8ab
3 changed files with 16 additions and 7 deletions
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8
arch/arm/mach-omap2/am33xx/board.c
View file

@ -333,6 +333,14 @@ void early_system_init(void)
set_uart_mux_conf();
setup_early_clocks();
uart_soft_reset();
#ifdef CONFIG_SPL_BUILD
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
save_omap_boot_params();
#endif
#ifdef CONFIG_DEBUG_UART_OMAP
debug_uart_init();
#endif

7
arch/arm/mach-omap2/boot-common.c
View file

@ -195,13 +195,6 @@ u32 spl_boot_mode(const u32 boot_device)
void spl_board_init(void)
{
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
save_omap_boot_params();
/* Prepare console output */
preloader_console_init();

8
arch/arm/mach-omap2/hwinit-common.c
View file

@ -158,6 +158,14 @@ void early_system_init(void)
do_io_settings();
#endif
setup_early_clocks();
#ifdef CONFIG_SPL_BUILD
/*
* Save the boot parameters passed from romcode.
* We cannot delay the saving further than this,
* to prevent overwrites.
*/
save_omap_boot_params();
#endif
do_board_detect();
vcores_init();
#ifdef CONFIG_DEBUG_UART_OMAP