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board: bsh: imx8mn_bsh_smm_s2/s2pro: enable DM_SERIAL

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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>
This commit is contained in:
Michael Trimarchi 2022-04-18 08:53:36 +02:00 committed by Stefano Babic
parent 6a21c69521
commit 0016e62813
3 changed files with 4 additions and 9 deletions
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11
board/bsh/imx8mn_smm_s2/spl.c
View file

@ -40,14 +40,8 @@ void spl_board_init(void)
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 @@ int board_early_init_f(void)
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 @@ void board_init_f(ulong dummy)
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();

1
configs/imx8mn_bsh_smm_s2_defconfig
View file

@ -80,6 +80,7 @@ CONFIG_SPL_DM_PMIC_BD71837=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_DM_SERIAL=y
CONFIG_MXC_UART=y
CONFIG_SYSRESET=y
CONFIG_SYSRESET_PSCI=y

1
configs/imx8mn_bsh_smm_s2pro_defconfig
View file

@ -77,6 +77,7 @@ CONFIG_SPL_DM_PMIC_BD71837=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_DM_SERIAL=y
CONFIG_MXC_UART=y
CONFIG_SYSRESET=y
CONFIG_SYSRESET_PSCI=y