This is a precaution to prevent some USB flash drives from misbehaving in early boot stage.
Signed-off-by: Marek Vasut marex@denx.de Cc: Wolfgang Denk wd@denx.de Cc: Stefano Babic sbabic@denx.de Cc: Fabio Estevam festevam@gmail.com CC: Albert Aribaud albert.u.boot@aribaud.net --- board/denx/m28evk/m28evk.c | 3 --- board/denx/m28evk/spl_boot.c | 11 +++++++++++ 2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c index 3d28ea8..5068071 100644 --- a/board/denx/m28evk/m28evk.c +++ b/board/denx/m28evk/m28evk.c @@ -53,9 +53,6 @@ int board_early_init_f(void) mx28_set_sspclk(MXC_SSPCLK2, 96000, 0);
#ifdef CONFIG_CMD_USB - mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT); - mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 | - MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP); gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 0); #endif
diff --git a/board/denx/m28evk/spl_boot.c b/board/denx/m28evk/spl_boot.c index 7a12592..6b51332 100644 --- a/board/denx/m28evk/spl_boot.c +++ b/board/denx/m28evk/spl_boot.c @@ -214,9 +214,20 @@ const iomux_cfg_t iomux_setup[] = { MX28_PAD_SSP2_MISO__SSP2_D0 | MUX_CONFIG_SSP2, MX28_PAD_SSP2_SS0__SSP2_D3 | (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP), + + /* USB */ + MX28_PAD_SSP2_SS1__USB1_OVERCURRENT, + MX28_PAD_AUART3_TX__GPIO_3_13 | + MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP, };
void board_init_ll(void) { + /* Powerdown the USB */ + mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT); + mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 | + MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP); + gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 1); + mx28_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup)); }