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arm: mach-omap2: am33xx: Init pinmux before clock

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The board_early_init_f() inits clock before initing pinmux. However,
the clock configuration code might need to adjust PMIC settings of a
PMIC on I2C bus (e.g. board/ti/am335x/board.c does that). If the I2C
bus pin muxing is not configured before attempting to communicate
with the PMIC, the communication will silently fail and the prcm_init()
may configure fast enough CPU clock that the default voltage provided
by the PMIC would be insufficient and the platform would become
unstable.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut
2019-05-25 22:40:35 +02:00
committed by Tom Rini
parent 9bdf0e8fef
commit b2a2bf41ac
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-omap2/am33xx/board.c
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@@ -375,8 +375,8 @@ void update_rtc_magic(void)
*/
int board_early_init_f(void)
{
prcm_init();
set_mux_conf_regs();
prcm_init();
#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_RTC_DDR_SUPPORT)
update_rtc_magic();
#endif