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ARM: OMAP4+: Allow arch specfic code to use early DM 

Early system initialization is being done before initf_dm is being called
in U-Boot. Then system will fail to boot if any of the DM enabled driver
is being called in this system initialization code. So, rearrange the
code a bit so that DM enabled drivers can be called during early system
initialization.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Lokesh Vutla 2016-03-07 14:49:54 +05:30 committed by Tom Rini
parent 29c20ba235
commit e850ed82bc
1 changed files with 21 additions and 9 deletions
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30
arch/arm/cpu/armv7/omap-common/hwinit-common.c
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@ -107,21 +107,26 @@ void __weak do_board_detect(void)
{
}
/*
* Routine: s_init
* Description: Does early system init of watchdog, muxing, andclocks
void s_init(void)
{
}
/**
* early_system_init - Does Early system initialization.
*
* Does early system init of watchdog, muxing, andclocks
* Watchdog disable is done always. For the rest what gets done
* depends on the boot mode in which this function is executed
* 1. s_init of SPL running from SRAM
* 2. s_init of U-Boot running from FLASH
* 3. s_init of U-Boot loaded to SDRAM by SPL
* 4. s_init of U-Boot loaded to SDRAM by ROM code using the
* depends on the boot mode in which this function is executed when
* 1. SPL running from SRAM
* 2. U-Boot running from FLASH
* 3. U-Boot loaded to SDRAM by SPL
* 4. U-Boot loaded to SDRAM by ROM code using the
* Configuration Header feature
* Please have a look at the respective functions to see what gets
* done in each of these cases
* This function is called with SRAM stack.
*/
void s_init(void)
void early_system_init(void)
{
init_omap_revision();
hw_data_init();
@ -145,6 +150,7 @@ void s_init(void)
#ifdef CONFIG_SPL_BUILD
void board_init_f(ulong dummy)
{
early_system_init();
#ifdef CONFIG_BOARD_EARLY_INIT_F
board_early_init_f();
#endif
@ -153,6 +159,12 @@ void board_init_f(ulong dummy)
}
#endif
int arch_cpu_init_dm(void)
{
early_system_init();
return 0;
}
/*
* Routine: wait_for_command_complete
* Description: Wait for posting to finish on watchdog