[PATCH] board: gateworks: venice: enable SPL_DM_SERIAL

[PATCH] board: gateworks: venice: enable SPL_DM_SERIAL

[Tim Harvey]

The uart2 and its pinmux are already marked with u-boot,dm-spl but we
need to move the call to preloader_console_init() after spl_early_init()
to avoid a board hang as dm can't be used until after spl_early_init()
due to the uart driver not enabling the uart clock.

Remove the manual config of the UART pinmux now that it is no longer
needed.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 board/gateworks/venice/spl.c    | 23 ++---------------------
 configs/imx8mm_venice_defconfig |  1 -
 configs/imx8mn_venice_defconfig |  1 -
 configs/imx8mp_venice_defconfig |  1 -
 4 files changed, 2 insertions(+), 24 deletions(-)

diff --git a/board/gateworks/venice/spl.c b/board/gateworks/venice/spl.c
index 223f22d3463c..6e6ce015f28a 100644
--- a/board/gateworks/venice/spl.c
+++ b/board/gateworks/venice/spl.c
@@ -87,37 +87,20 @@ static void spl_dram_init(int size)
 	ddr_init(dram_timing);
 }
 
-#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)
 
 #ifdef CONFIG_IMX8MM
-static iomux_v3_cfg_t const uart_pads[] = {
-	IMX8MM_PAD_UART2_RXD_UART2_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
-	IMX8MM_PAD_UART2_TXD_UART2_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
-};
-
 static iomux_v3_cfg_t const wdog_pads[] = {
 	IMX8MM_PAD_GPIO1_IO02_WDOG1_WDOG_B  | MUX_PAD_CTRL(WDOG_PAD_CTRL),
 };
 #elif CONFIG_IMX8MN
-static const iomux_v3_cfg_t uart_pads[] = {
-	IMX8MN_PAD_UART2_RXD__UART2_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
-	IMX8MN_PAD_UART2_TXD__UART2_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),
 };
 #elif CONFIG_IMX8MP
-static const iomux_v3_cfg_t uart_pads[] = {
-	MX8MP_PAD_UART2_RXD__UART2_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
-	MX8MP_PAD_UART2_TXD__UART2_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
-};
-
 static const iomux_v3_cfg_t wdog_pads[] = {
 	MX8MP_PAD_GPIO1_IO02__WDOG1_WDOG_B  | MUX_PAD_CTRL(WDOG_PAD_CTRL),
 };
-
 #endif
 
 int board_early_init_f(void)
@@ -128,8 +111,6 @@ int board_early_init_f(void)
 
 	set_wdog_reset(wdog);
 
-	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
-
 	return 0;
 }
 
@@ -276,8 +257,6 @@ void board_init_f(ulong dummy)
 
 	timer_init();
 
-	preloader_console_init();
-
 	/* Clear the BSS. */
 	memset(__bss_start, 0, __bss_end - __bss_start);
 
@@ -287,6 +266,8 @@ void board_init_f(ulong dummy)
 		hang();
 	}
 
+	preloader_console_init();
+
 	enable_tzc380();
 
 	/* need to hold PCIe switch in reset otherwise it can lock i2c bus EEPROM is on */
diff --git a/configs/imx8mm_venice_defconfig b/configs/imx8mm_venice_defconfig
index 76c5aaa413a3..e61464078fc4 100644
--- a/configs/imx8mm_venice_defconfig
+++ b/configs/imx8mm_venice_defconfig
@@ -114,7 +114,6 @@ CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_DM_SERIAL=y
-# CONFIG_SPL_DM_SERIAL is not set
 CONFIG_MXC_UART=y
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
diff --git a/configs/imx8mn_venice_defconfig b/configs/imx8mn_venice_defconfig
index 867871373e2d..7b8be003369d 100644
--- a/configs/imx8mn_venice_defconfig
+++ b/configs/imx8mn_venice_defconfig
@@ -113,7 +113,6 @@ CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_DM_SERIAL=y
-# CONFIG_SPL_DM_SERIAL is not set
 CONFIG_MXC_UART=y
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
diff --git a/configs/imx8mp_venice_defconfig b/configs/imx8mp_venice_defconfig
index e654762b8cb9..01d9f8b6698c 100644
--- a/configs/imx8mp_venice_defconfig
+++ b/configs/imx8mp_venice_defconfig
@@ -113,7 +113,6 @@ CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_DM_SERIAL=y
-# CONFIG_SPL_DM_SERIAL is not set
 CONFIG_MXC_UART=y
 CONFIG_SYSRESET=y
 CONFIG_SPL_SYSRESET=y
-- 
2.17.1

[PATCH] board: gateworks: venice: enable SPL_DM_SERIAL

[sbabic]

> The uart2 and its pinmux are already marked with u-boot,dm-spl but we
> need to move the call to preloader_console_init() after spl_early_init()
> to avoid a board hang as dm can't be used until after spl_early_init()
> due to the uart driver not enabling the uart clock.
> Remove the manual config of the UART pinmux now that it is no longer
> needed.
> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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