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ARM: imx: Switch Data Modul i.MX8M Mini eDM SBC to USB251x Hub driver

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Replace the ad-hoc I2C register programming scripted in board
environment with U-Boot DM driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
This commit is contained in:
Marek Vasut
2022-06-15 13:07:39 +02:00
committed by Stefano Babic
parent 0543a1ed27
commit b70c34224e
3 changed files with 10 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
View File

@@ -9,6 +9,7 @@
#include <asm/io.h>
#include <asm/mach-imx/boot_mode.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <i2c_eeprom.h>
#include <malloc.h>
#include <net.h>
@@ -104,7 +105,15 @@ int board_init(void)
int board_late_init(void)
{
struct udevice *dev;
int ret;
setup_boot_device();
setup_mac_address();
ret = uclass_get_device_by_name(UCLASS_MISC, "usb-hub@2c", &dev);
if (ret)
printf("Error bringing up USB hub (%d)\n", ret);
return 0;
}

1
configs/imx8mm_data_modul_edm_sbc_defconfig
View File

@@ -156,6 +156,7 @@ CONFIG_MXC_GPIO=y
CONFIG_DM_I2C=y
# CONFIG_INPUT is not set
CONFIG_MISC=y
CONFIG_USB_HUB_USB251XB=y
CONFIG_I2C_EEPROM=y
CONFIG_SYS_I2C_EEPROM_ADDR=0x50
CONFIG_SUPPORT_EMMC_BOOT=y

20
include/configs/imx8mm_data_modul_edm_sbc.h
View File

@@ -71,7 +71,6 @@
"mtd nor0=sf raw 0x0 0x1000000\0" \
"dmo_preboot=" \
"sf probe ; " /* Scan for SPI NOR, needed by DFU */ \
"run dmo_usb_start_hub ; " \
/* Attempt to start USB and Network console */ \
"run dmo_usb_cdc_acm_start ; " \
"run dmo_netconsole_start\0" \
@@ -91,25 +90,6 @@
"setenv stdin ${stdin},usbacm ; " \
"fi ; " \
"fi\0" \
"dmo_usb_start_hub=" \
"i2c dev 1 ; " \
/* Reset the USB USB */ \
"gpio clear GPIO5_2 ; sleep 0.01 ; " /* t1 > 1us */ \
"gpio set GPIO5_2 ; sleep 0.01 ; " /* t5 > 3us */ \
/* Write chunks of descriptor into the USB HUB */ \
"mw.l 0x7e1000 0x14042417 ; mw.l 0x7e1004 0x9b0bb325 ; "\
"mw.l 0x7e1008 0x00000220 ; mw.l 0x7e100c 0x01320100 ; "\
"mw.l 0x7e1010 0x00003232 ; mw.l 0x7e1014 0x4d000909 ; "\
"i2c write 0x7e1000 0x2c 0x00 0x18 -s ; " \
"mw.l 0x7e1000 0x6300690f ; mw.l 0x7e1004 0x6f007200 ; "\
"mw.l 0x7e1008 0x68006300 ; mw.l 0x7e100c 0x70006900 ; "\
"i2c write 0x7e1000 0x2c 0x18 0x10 -s ; " \
"mw.l 0x7e1000 0x53005511 ; mw.l 0x7e1004 0x32004200 ; "\
"mw.l 0x7e1008 0x31003500 ; mw.l 0x7e100c 0x42003400 ; "\
"mw.l 0x7e1010 0x00006900 ; " \
"i2c write 0x7e1000 0x2c 0x54 0x12 -s ; " \
"mw.l 0x7e1000 0x00000101 ; " \
"i2c write 0x7e1000 0x2c 0xff 0x2 -s\0" \
"dmo_netconsole_start=" \
"if test \"${dmo_netconsole_enabled}\" = \"true\" ; then "\
"setenv autoload false && " \