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

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>

diff --git a/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c b/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
index 46cb6f7..6dc4e6a 100644 (file)
--- a/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
+++ b/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
@@ -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;
 }

diff --git a/configs/imx8mm_data_modul_edm_sbc_defconfig b/configs/imx8mm_data_modul_edm_sbc_defconfig
index d55efa6..99a1f86 100644 (file)
--- a/configs/imx8mm_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mm_data_modul_edm_sbc_defconfig
@@ -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

diff --git a/include/configs/imx8mm_data_modul_edm_sbc.h b/include/configs/imx8mm_data_modul_edm_sbc.h
index 67667dd..419258f 100644 (file)
--- a/include/configs/imx8mm_data_modul_edm_sbc.h
+++ b/include/configs/imx8mm_data_modul_edm_sbc.h
@@ -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 && "                     \