diff options
| author | Ludwig Zenz <lzenz@dh-electronics.com> | 2019-07-01 09:42:09 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2019-07-19 20:32:24 +0200 |
| commit | 6e75cb237d6398254c62ded0d27a30c9c59438b1 (patch) | |
| tree | 53bb061cc8986ded56cc5c42629fb7f6011ce7b6 /board | |
| parent | 9d364ebd058b0f69eb4edcd1f79ccfa68b4d5d43 (diff) | |
ARM: imx6: DHCOM i.MX6 PDK: enable pad pull ups of SS lines of spi used for boot
It turned out that after a reset the boot process from the spi bootflash is
disturbed by other spi slave devices connected to DHCOM SPI1, which uses the
same spi interface with a different SS line.
Therefore the pad pull ups are enabled.
Signed-off-by: Ludwig Zenz <lzenz@dh-electronics.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/dhelectronics/dh_imx6/dh_imx6_spl.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/board/dhelectronics/dh_imx6/dh_imx6_spl.c b/board/dhelectronics/dh_imx6/dh_imx6_spl.c index b492961042..1b7acc8df7 100644 --- a/board/dhelectronics/dh_imx6/dh_imx6_spl.c +++ b/board/dhelectronics/dh_imx6/dh_imx6_spl.c @@ -440,8 +440,13 @@ static void setup_iomux_sd(void) /* SPI */ static iomux_v3_cfg_t const ecspi1_pads[] = { - /* SS0 */ - IOMUX_PADS(PAD_EIM_EB2__GPIO2_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL)), + /* SS0 - SS of boot flash */ + IOMUX_PADS(PAD_EIM_EB2__GPIO2_IO30 | + MUX_PAD_CTRL(SPI_PAD_CTRL | PAD_CTL_PUS_100K_UP)), + /* SS2 - SS of DHCOM SPI1 */ + IOMUX_PADS(PAD_KEY_ROW2__GPIO4_IO11 | + MUX_PAD_CTRL(SPI_PAD_CTRL | PAD_CTL_PUS_100K_UP)), + IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)), IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)), IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)), |