GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/board/toradex/colibri-imx8x/colibri-imx8x.c

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 Toradex
+ */
+
+#include <common.h>
+#include <init.h>
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx8-pins.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/sci/sci.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <env.h>
+#include <errno.h>
+#include <linux/libfdt.h>
+
+#include "../common/tdx-cfg-block.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL	((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
+			 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
+			 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
+			 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
+
+static iomux_cfg_t uart3_pads[] = {
+	SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
+	SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
+	/* Transceiver FORCEOFF# signal, mux to use pull-up */
+	SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
+}
+
+int board_early_init_f(void)
+{
+	sc_pm_clock_rate_t rate;
+	sc_err_t err = 0;
+
+	/*
+	 * This works around that having only UART3 up the baudrate is 1.2M
+	 * instead of 115.2k. Set UART0 clock root to 80 MHz
+	 */
+	rate = 80000000;
+	err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
+	if (err != SC_ERR_NONE)
+		return 0;
+
+	/* Set UART3 clock root to 80 MHz and enable it */
+	rate = SC_80MHZ;
+	err = sc_pm_setup_uart(SC_R_UART_3, rate);
+	if (err != SC_ERR_NONE)
+		return 0;
+
+	setup_iomux_uart();
+
+	return 0;
+}
+
+#if IS_ENABLED(CONFIG_DM_GPIO)
+static void board_gpio_init(void)
+{
+	/* TODO */
+}
+#else
+static inline void board_gpio_init(void) {}
+#endif
+
+#if IS_ENABLED(CONFIG_FEC_MXC)
+#include <miiphy.h>
+
+int board_phy_config(struct phy_device *phydev)
+{
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+
+	return 0;
+}
+#endif
+
+int checkboard(void)
+{
+	puts("Model: Toradex Colibri iMX8X\n");
+
+	build_info();
+	print_bootinfo();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	board_gpio_init();
+
+	return 0;
+}
+
+void detail_board_ddr_info(void)
+{
+	puts("\nDDR    ");
+}
+
+/*
+ * Board specific reset that is system reset.
+ */
+void reset_cpu(ulong addr)
+{
+	/* TODO */
+}
+
+#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
+
+int board_mmc_get_env_dev(int devno)
+{
+	return devno;
+}
+
+int board_late_init(void)
+{
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+/* TODO move to common */
+	env_set("board_name", "Colibri iMX8QXP");
+	env_set("board_rev", "v1.0");
+#endif
+
+	return 0;
+}