warp7: Remove UART initialization code

With DM_SERIAL selected, it is no longer needed board code to
initialize the UART.

Describe the nodes that require dm-pre-reloc, which allows
the DM model to configure the UART pinctrl early.

Remove the now unneeded board UART initialization.

Signed-off-by: Fabio Estevam <festevam@denx.de>

diff --git a/arch/arm/dts/imx7s-warp-u-boot.dtsi b/arch/arm/dts/imx7s-warp-u-boot.dtsi
index 6319840..bc4b574 100644 (file)
--- a/arch/arm/dts/imx7s-warp-u-boot.dtsi
+++ b/arch/arm/dts/imx7s-warp-u-boot.dtsi
@@ -8,3 +8,19 @@
         stdout-path = &uart1;
     };
 };
+
+&aips3 {
+       u-boot,dm-pre-reloc;
+};
+
+&pinctrl_uart1 {
+       u-boot,dm-pre-reloc;
+};
+
+&soc {
+       u-boot,dm-pre-reloc;
+};
+
+&uart1 {
+       u-boot,dm-pre-reloc;
+};

diff --git a/arch/arm/dts/imx7s.dtsi b/arch/arm/dts/imx7s.dtsi
index 483824f..cf0206d 100644 (file)
--- a/arch/arm/dts/imx7s.dtsi
+++ b/arch/arm/dts/imx7s.dtsi
@@ -184,7 +184,7 @@
                             <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
        };
 
-       soc {
+       soc: soc {
                #address-cells = <1>;
                #size-cells = <1>;
                compatible = "simple-bus";

diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c
index c5c5433..95b8e82 100644 (file)
--- a/board/warp7/warp7.c
+++ b/board/warp7/warp7.c
@@ -27,9 +27,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU100KOHM | \
-                       PAD_CTL_HYS)
-
 int dram_init(void)
 {
        gd->ram_size = PHYS_SDRAM_SIZE;
@@ -46,23 +43,6 @@ static iomux_v3_cfg_t const wdog_pads[] = {
        MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
-static iomux_v3_cfg_t const uart1_pads[] = {
-       MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
-       MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
-};
-
-static void setup_iomux_uart(void)
-{
-       imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
-};
-
-int board_early_init_f(void)
-{
-       setup_iomux_uart();
-
-       return 0;
-}
-
 #ifdef CONFIG_DM_PMIC
 int power_init_board(void)
 {

diff --git a/configs/warp7_bl33_defconfig b/configs/warp7_bl33_defconfig
index 949790c..3f91211 100644 (file)
--- a/configs/warp7_bl33_defconfig
+++ b/configs/warp7_bl33_defconfig
@@ -17,6 +17,7 @@ CONFIG_FIT_SIGNATURE=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="mmc dev ${mmcdev};mmc dev ${mmcdev}; if mmc rescan; then run do_bootscript_hab;if run loadbootscript; then run bootscript; else if run loadimage; then run mmcboot; fi; fi; fi"
+# CONFIG_BOARD_EARLY_INIT_F is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_MEMTEST=y

diff --git a/configs/warp7_defconfig b/configs/warp7_defconfig
index ab7299c..b349d54 100644 (file)
--- a/configs/warp7_defconfig
+++ b/configs/warp7_defconfig
@@ -21,6 +21,7 @@ CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="mmc dev ${mmcdev};mmc dev ${mmcdev}; if mmc rescan; then run do_bootscript_hab;if run loadbootscript; then run bootscript; else if run loadimage; then run mmcboot; fi; fi; fi"
+# CONFIG_BOARD_EARLY_INIT_F is not set
 CONFIG_HUSH_PARSER=y
 # CONFIG_CMD_BOOTD is not set
 CONFIG_CMD_BOOTZ=y