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tbs2910: Convert to DM_SERIAL

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Conversion to DM_SERIAL is mandatory.

Select DM_SERIAL and add a imx6q-tbs2910-u-boot.dtsi file
that describes 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>
Tested-by: Soeren Moch <smoch@web.de>
This commit is contained in:
Fabio Estevam 2022-03-15 17:47:05 -03:00 • committed by Stefano Babic
parent 473466a5c4
commit 8fbca1a8b9
4 changed files with 20 additions and 29 deletions

17
arch/arm/dts/imx6q-tbs2910-u-boot.dtsi Normal file
View file

@ -0,0 +1,17 @@
// SPDX-License-Identifier: GPL-2.0+
&aips1 {
u-boot,dm-pre-reloc;
};
&pinctrl_uart1 {
u-boot,dm-pre-reloc;
};
&soc {
u-boot,dm-pre-reloc;
};
&uart1 {
u-boot,dm-pre-reloc;
};

4
arch/arm/dts/imx6qdl.dtsi
View file

@ -139,7 +139,7 @@
interrupts = <0 94 IRQ_TYPE_LEVEL_HIGH>;
};
soc {
soc: soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
@ -283,7 +283,7 @@
status = "disabled";
};
bus@2000000 { /* AIPS1 */
aips1: bus@2000000 { /* AIPS1 */
compatible = "fsl,aips-bus", "simple-bus";
#address-cells = <1>;
#size-cells = <1>;

26
board/tbs/tbs2910/tbs2910.c
View file

@ -22,32 +22,12 @@
#include <asm/arch/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
static iomux_v3_cfg_t const uart1_pads[] = {
MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static iomux_v3_cfg_t const uart2_pads[] = {
MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};
int dram_init(void)
{
gd->ram_size = 2048ul * 1024 * 1024;
return 0;
}
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
}
#ifdef CONFIG_FSL_ESDHC_IMX
/* set environment device to boot device when booting from SD */
int board_mmc_get_env_dev(int devno)
@ -150,12 +130,6 @@ static void setup_display(void)
}
#endif /* CONFIG_VIDEO_IPUV3 */
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */

2
configs/tbs2910_defconfig
View file

@ -25,7 +25,6 @@ CONFIG_USE_PREBOOT=y
CONFIG_PREBOOT="echo PCI:; pci enum; pci 1; usb start; if hdmidet; then run set_con_hdmi; else run set_con_serial; fi"
CONFIG_DEFAULT_FDT_FILE="imx6q-tbs2910.dtb"
CONFIG_PRE_CONSOLE_BUFFER=y
CONFIG_BOARD_EARLY_INIT_F=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Matrix U-Boot> "
# CONFIG_CMD_BDI is not set
@ -83,6 +82,7 @@ CONFIG_PINCTRL=y
CONFIG_PINCTRL_IMX6=y
CONFIG_DM_RTC=y
CONFIG_RTC_DS1307=y
CONFIG_DM_SERIAL=y
CONFIG_MXC_UART=y
CONFIG_DM_THERMAL=y
CONFIG_IMX_THERMAL=y