diff options
| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-09-29 19:28:01 +0200 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-10-01 00:33:35 +0200 |
| commit | 482cf22333dbfb7c706d6a7ec1ffbfa5409cc6a3 (patch) | |
| tree | bdc510d8ea59ff9e976e6384857ec2ecfb841693 /board/theobroma-systems/puma_rk3399 | |
| parent | 0b5e7aab0ef62fea852d03df76e577c217d0b8bf (diff) | |
rockchip: rk3399-puma: add boot-on regulator to override BIOS_DISABLE
The (Qseven) BIOS_DISABLE signal on the RK3399-Q7 (Puma) keeps the
eMMC and SPI in reset initially and we need to write a GPIO to turn
them on before continuing the boot-up.
This adds the DTS entries for the additional regulator and makes
pinctrl and gpio3 available during SPL. It also adds a hook to the
spl_board_init() to ensure that the regulator gets probed and enabled.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/theobroma-systems/puma_rk3399')
| -rw-r--r-- | board/theobroma-systems/puma_rk3399/puma-rk3399.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c index 3cab7b1d48..2b4988e2d2 100644 --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c @@ -34,6 +34,16 @@ int board_init(void) void spl_board_init(void) { + int ret; + + /* + * Turning the eMMC and SPI back on (if disabled via the Qseven + * BIOS_ENABLE) signal is done through a always-on regulator). + */ + ret = regulators_enable_boot_on(false); + if (ret) + debug("%s: Cannot enable boot on regulator\n", __func__); + preloader_console_init(); } |