diff options
| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-09-29 19:28:01 +0200 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2018-01-17 15:27:28 +0800 |
| commit | be29fed8f989befde16eb011c343db161284594b (patch) | |
| tree | e36ea70ce77784d844ffcc0e0717ec5bbf473e0d /board | |
| parent | b4d43cb80724c73c6d70d8e51536b66d4bfea2a7 (diff) | |
UPSTREAM: 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.
Change-Id: I5d229af39d5b410a5abc38f9d151bc766384c275
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 482cf22333dbfb7c706d6a7ec1ffbfa5409cc6a3)
Diffstat (limited to 'board')
| -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(); } |