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| author | Philippe Schenker <philippe.schenker@toradex.com> | 2019-04-09 17:24:12 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2019-04-25 17:03:25 +0200 |
| commit | c2f38bf0a0ac7a903a27992f275e13d8e15cf023 (patch) | |
| tree | f2e16d62fa5bcdc2d38c5cfd778cd8406666ed01 /board/toradex | |
| parent | 70a0467b92494e27652fe8027ec56d1d89771cfe (diff) | |
| download | u-boot-c2f38bf0a0ac7a903a27992f275e13d8e15cf023.zip u-boot-c2f38bf0a0ac7a903a27992f275e13d8e15cf023.tar.gz u-boot-c2f38bf0a0ac7a903a27992f275e13d8e15cf023.tar.bz2 | |
board: imx6ull: Add disable PMIC_STBY_REQ
Disable output driver of PAD CCM_PMIC_STBY_REQ. This prevents the
SOC to request for a lower voltage during sleep. This is necessary
because the voltage is changing too slow for the SOC to wake up
properly.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Diffstat (limited to 'board/toradex')
| -rw-r--r-- | board/toradex/colibri-imx6ull/colibri-imx6ull.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/board/toradex/colibri-imx6ull/colibri-imx6ull.c b/board/toradex/colibri-imx6ull/colibri-imx6ull.c index b6f45ed..f1d5cc6 100644 --- a/board/toradex/colibri-imx6ull/colibri-imx6ull.c +++ b/board/toradex/colibri-imx6ull/colibri-imx6ull.c @@ -50,6 +50,8 @@ DECLARE_GLOBAL_DATA_PTR; #define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \ PAD_CTL_DSE_48ohm) +#define MX6_PAD_SNVS_PMIC_STBY_REQ_ADDR 0x2290040 + #define NAND_PAD_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_SRE_SLOW | PAD_CTL_HYS) #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_PUS_22K_UP) @@ -331,6 +333,14 @@ int board_late_init(void) env_set("variant", "-wifi"); #endif + /* + * Disable output driver of PAD CCM_PMIC_STBY_REQ. This prevents the + * SOC to request for a lower voltage during sleep. This is necessary + * because the voltage is changing too slow for the SOC to wake up + * properly. + */ + __raw_writel(0x8080, MX6_PAD_SNVS_PMIC_STBY_REQ_ADDR); + #ifdef CONFIG_CMD_BMODE add_board_boot_modes(board_boot_modes); #endif |