board: bsh: imx8mn_bsh_smm_s2/s2pro: enable DM_SERIAL
Enable DM_SERIAL for both U_Boot and the SPL. The uart4 and its pinmux
are already marked with u-boot,dm-spl but we need to move the call to
preloader_console_init() after spl_init() to avoid a board hang
as dm can't be used until after spl_init().
Remove the manual config of the UART pinmux now that it is no longer
needed.
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Tested-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
diff --git a/board/bsh/imx8mn_smm_s2/spl.c b/board/bsh/imx8mn_smm_s2/spl.c
index 5f04731..0f61acc 100644
--- a/board/bsh/imx8mn_smm_s2/spl.c
+++ b/board/bsh/imx8mn_smm_s2/spl.c
@@ -40,14 +40,8 @@
puts("Failed to find clock node. Check device tree\n");
}
-#define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
#define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
-static const iomux_v3_cfg_t uart_pads[] = {
- IMX8MN_PAD_UART4_RXD__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
- IMX8MN_PAD_UART4_TXD__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
-};
-
static const iomux_v3_cfg_t wdog_pads[] = {
IMX8MN_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};
@@ -59,7 +53,6 @@
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
set_wdog_reset(wdog);
- imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
init_uart_clk(3);
if (IS_ENABLED(CONFIG_NAND_MXS)) {
@@ -82,14 +75,14 @@
timer_init();
- preloader_console_init();
-
ret = spl_init();
if (ret) {
debug("spl_init() failed: %d\n", ret);
hang();
}
+ preloader_console_init();
+
/* DDR initialization */
spl_dram_init();