board: toradex: turn off lcd backlight before OS handover

[platform/kernel/u-boot.git] / board / toradex / colibri_t20 / colibri_t20.c

diff --git a/board/toradex/colibri_t20/colibri_t20.c b/board/toradex/colibri_t20/colibri_t20.c
index 42b293d..e0b27e9 100644 (file)
--- a/board/toradex/colibri_t20/colibri_t20.c
+++ b/board/toradex/colibri_t20/colibri_t20.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Copyright (C) 2012 Lucas Stach
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -14,6 +13,10 @@
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <i2c.h>
+#include <nand.h>
+#include "../common/tdx-common.h"
+
+DECLARE_GLOBAL_DATA_PTR;
 
 #define PMU_I2C_ADDRESS                0x34
 #define MAX_I2C_RETRY          3
@@ -51,6 +54,9 @@ int arch_misc_init(void)
                return err;
        }
 
+       /* make sure SODIMM pin 87 nRESET_OUT is released properly */
+       pinmux_set_func(PMUX_PINGRP_ATA, PMUX_FUNC_GMI);
+
        if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
            NVBOOTTYPE_RECOVERY)
                printf("USB recovery mode\n");
@@ -58,7 +64,24 @@ int arch_misc_init(void)
        return 0;
 }
 
-#ifdef CONFIG_TEGRA_MMC
+int checkboard(void)
+{
+       printf("Model: Toradex Colibri T20 %dMB V%s\n",
+              (gd->ram_size == 0x10000000) ? 256 : 512,
+              (get_nand_dev_by_index(0)->erasesize >> 10 == 512) ?
+              ((gd->ram_size == 0x10000000) ? "1.1B" : "1.1C") : "1.2A");
+
+       return 0;
+}
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, bd_t *bd)
+{
+       return ft_common_board_setup(blob, bd);
+}
+#endif
+
+#ifdef CONFIG_MMC_SDHCI_TEGRA
 /*
  * Routine: pin_mux_mmc
  * Description: setup the pin muxes/tristate values for the SDMMC(s)
@@ -100,18 +123,18 @@ void pin_mux_usb(void)
        pinmux_tristate_disable(PMUX_PINGRP_DTE);
 
        /* Reset ASIX using LAN_RESET */
-       gpio_request(GPIO_PV4, "LAN_RESET");
-       gpio_direction_output(GPIO_PV4, 0);
+       gpio_request(TEGRA_GPIO(V, 4), "LAN_RESET");
+       gpio_direction_output(TEGRA_GPIO(V, 4), 0);
        pinmux_tristate_disable(PMUX_PINGRP_GPV);
        udelay(5);
-       gpio_set_value(GPIO_PV4, 1);
+       gpio_set_value(TEGRA_GPIO(V, 4), 1);
 
        /* USBH_PEN: USB 1 aka Tegra USB port 3 VBus */
        pinmux_tristate_disable(PMUX_PINGRP_SPIG);
 }
 #endif
 
-#ifdef CONFIG_VIDEO_TEGRA
+#ifdef CONFIG_VIDEO_TEGRA20
 /*
  * Routine: pin_mux_display
  * Description: setup the pin muxes/tristate values for the LCD interface)
@@ -127,4 +150,13 @@ void pin_mux_display(void)
        pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM);
        pinmux_tristate_disable(PMUX_PINGRP_SDC);
 }
+
+/*
+ * Backlight off before OS handover
+ */
+void board_preboot_os(void)
+{
+       gpio_request(TEGRA_GPIO(T, 4), "BL_ON");
+       gpio_direction_output(TEGRA_GPIO(T, 4), 0);
+}
 #endif