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

source/bootloader/u-boot-2020.01/board/technologic/ts4600/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_TS4600
+
+config SYS_BOARD
+	default "ts4600"
+
+config SYS_VENDOR
+	default "technologic"
+
+config SYS_SOC
+	default "mxs"
+
+config SYS_CONFIG_NAME
+	default "ts4600"
+
+endif

source/bootloader/u-boot-2020.01/board/technologic/ts4600/MAINTAINERS

@@ -0,0 +1,6 @@
+TS4600 BOARD
+M:	Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
+S:	Maintained
+F:	board/technologic/ts4600/
+F:	include/configs/ts4600.h
+F:	configs/ts4600_defconfig

source/bootloader/u-boot-2020.01/board/technologic/ts4600/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2016 Savoir-faire Linux
+
+ifndef	CONFIG_SPL_BUILD
+obj-y	:= ts4600.o
+else
+obj-y	:= iomux.o
+endif

source/bootloader/u-boot-2020.01/board/technologic/ts4600/iomux.c

@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2016 Savoir-faire Linux Inc.
+ *
+ * Author: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
+ *
+ * Based on work from TS7680 code by:
+ *   Kris Bahnsen <kris@embeddedarm.com>
+ *   Mark Featherston <mark@embeddedarm.com>
+ *   https://github.com/embeddedarm/u-boot/tree/master/board/technologic/ts7680
+ *
+ * Derived from MX28EVK code by
+ *   Freescale Semiconductor, Inc.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/io.h>
+#include <asm/arch/iomux-mx28.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/sys_proto.h>
+
+#define	MUX_CONFIG_SSP0	(MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
+#define	MUX_CONFIG_EMI	(MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL)
+
+const iomux_cfg_t iomux_setup[] = {
+	/* DUART */
+	MX28_PAD_PWM0__DUART_RX,
+	MX28_PAD_PWM1__DUART_TX,
+
+	/* MMC0 */
+	MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0,
+	MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0,
+	MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0,
+	MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0,
+	MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0,
+	MX28_PAD_SSP0_SCK__SSP0_SCK |
+		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+
+	/* MMC0 slot power enable */
+	MX28_PAD_PWM3__GPIO_3_28 |
+		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+
+	/* EMI */
+	MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
+	MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
+
+	/* I2C */
+	MX28_PAD_I2C0_SCL__I2C0_SCL,
+	MX28_PAD_I2C0_SDA__I2C0_SDA,
+
+};
+
+#define HW_DRAM_CTL29	(0x74 >> 2)
+#define CS_MAP		0xf
+#define COLUMN_SIZE	0x2
+#define ADDR_PINS	0x1
+#define APREBIT		0xa
+
+#define HW_DRAM_CTL29_CONFIG	(CS_MAP << 24 | COLUMN_SIZE << 16 | \
+					ADDR_PINS << 8 | APREBIT)
+
+#define HW_DRAM_CTL39	(0x9c >> 2)
+#define TFAW		0xb
+#define TDLL		0xc8
+
+#define HW_DRAM_CTL39_CONFIG	(TFAW << 24 | TDLL)
+
+#define HW_DRAM_CTL41	(0xa4 >> 2)
+#define TPDEX		0x2
+#define TRCD_INT	0x4
+#define TRC		0xd
+
+#define HW_DRAM_CTL41_CONFIG	(TPDEX << 24 | TRCD_INT << 8 | TRC)
+
+#define HW_DRAM_CTL42	(0xa8 >> 2)
+#define TRAS_MAX	0x36a6
+#define TRAS_MIN	0xa
+
+#define HW_DRAM_CTL42_CONFIG  (TRAS_MAX << 8 | TRAS_MIN)
+
+#define HW_DRAM_CTL43	(0xac >> 2)
+#define TRP		0x4
+#define TRFC		0x27
+#define TREF		0x2a0
+
+#define HW_DRAM_CTL43_CONFIG (TRP << 24 | TRFC << 16 | TREF)
+
+void mxs_adjust_memory_params(uint32_t *dram_vals)
+{
+	dram_vals[HW_DRAM_CTL29] = HW_DRAM_CTL29_CONFIG;
+	dram_vals[HW_DRAM_CTL39] = HW_DRAM_CTL39_CONFIG;
+	dram_vals[HW_DRAM_CTL41] = HW_DRAM_CTL41_CONFIG;
+	dram_vals[HW_DRAM_CTL42] = HW_DRAM_CTL42_CONFIG;
+	dram_vals[HW_DRAM_CTL43] = HW_DRAM_CTL43_CONFIG;
+}
+
+void board_init_ll(const uint32_t arg, const uint32_t *resptr)
+{
+	mxs_common_spl_init(arg, resptr, iomux_setup, ARRAY_SIZE(iomux_setup));
+}

source/bootloader/u-boot-2020.01/board/technologic/ts4600/ts4600.c

@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2016 Savoir-faire Linux Inc.
+ *
+ * Author: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
+ *
+ * Based on work from TS7680 code by:
+ *   Kris Bahnsen <kris@embeddedarm.com>
+ *   Mark Featherston <mark@embeddedarm.com>
+ *   https://github.com/embeddedarm/u-boot/tree/master/board/technologic/ts7680
+ *
+ * Derived from MX28EVK code by
+ *   Freescale Semiconductor, Inc.
+ */
+
+#include <common.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux-mx28.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <linux/mii.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <errno.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	/* IO0 clock at 480MHz */
+	mxs_set_ioclk(MXC_IOCLK0, 480000);
+	/* IO1 clock at 480MHz */
+	mxs_set_ioclk(MXC_IOCLK1, 480000);
+
+	/* SSP0 clocks at 96MHz */
+	mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	return mxs_dram_init();
+}
+
+int board_init(void)
+{
+	/* Adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+#ifdef CONFIG_CMD_MMC
+static int ts4600_mmc_cd(int id)
+{
+	return 1;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	int ret;
+
+	mxs_iomux_setup_pad(MX28_PAD_PWM3__GPIO_3_28);
+
+	/* Power-on SD */
+	gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 1);
+	udelay(1000);
+	gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
+
+	/* SD card */
+	ret = mxsmmc_initialize(bis, 0, NULL, ts4600_mmc_cd);
+	if(ret != 0) {
+		printf("SD controller initialized with %d\n", ret);
+	}
+
+	return ret;
+}
+#endif
+
+int checkboard(void)
+{
+	puts("Board: TS4600\n");
+
+	return 0;
+}

source/bootloader/u-boot-2020.01/board/technologic/ts4800/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_TS4800
+
+config SYS_BOARD
+	default "ts4800"
+
+config SYS_VENDOR
+	default "technologic"
+
+config SYS_SOC
+	default "mx5"
+
+config SYS_CONFIG_NAME
+	default "ts4800"
+
+endif

source/bootloader/u-boot-2020.01/board/technologic/ts4800/MAINTAINERS

@@ -0,0 +1,6 @@
+TS4800 BOARD
+M:	Lucile Quirion <lucile.quirion@savoirfairelinux.com>
+S:	Maintained
+F:	board/ts/ts4800/
+F:	include/configs/ts4800.h
+F:	configs/ts4800_defconfig

source/bootloader/u-boot-2020.01/board/technologic/ts4800/Makefile

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2015 Savoir-faire Linux
+
+obj-y			+= ts4800.o

source/bootloader/u-boot-2020.01/board/technologic/ts4800/ts4800.c

@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2015 Savoir-faire Linux Inc.
+ *
+ * Derived from MX51EVK code by
+ *   Freescale Semiconductor, Inc.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux-mx51.h>
+#include <env.h>
+#include <linux/errno.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/clock.h>
+#include <asm/mach-imx/mx5_video.h>
+#include <mmc.h>
+#include <input.h>
+#include <fsl_esdhc_imx.h>
+#include <mc13892.h>
+
+#include <malloc.h>
+#include <netdev.h>
+#include <phy.h>
+#include "ts4800.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_FSL_ESDHC_IMX
+struct fsl_esdhc_cfg esdhc_cfg[2] = {
+	{MMC_SDHC1_BASE_ADDR},
+	{MMC_SDHC2_BASE_ADDR},
+};
+#endif
+
+int dram_init(void)
+{
+	/* dram_init must store complete ramsize in gd->ram_size */
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				PHYS_SDRAM_1_SIZE);
+	return 0;
+}
+
+u32 get_board_rev(void)
+{
+	u32 rev = get_cpu_rev();
+	if (!gpio_get_value(IMX_GPIO_NR(1, 22)))
+		rev |= BOARD_REV_2_0 << BOARD_VER_OFFSET;
+	return rev;
+}
+
+#define UART_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_HIGH)
+
+static void setup_iomux_uart(void)
+{
+	static const iomux_v3_cfg_t uart_pads[] = {
+		MX51_PAD_UART1_RXD__UART1_RXD,
+		MX51_PAD_UART1_TXD__UART1_TXD,
+		NEW_PAD_CTRL(MX51_PAD_UART1_RTS__UART1_RTS, UART_PAD_CTRL),
+		NEW_PAD_CTRL(MX51_PAD_UART1_CTS__UART1_CTS, UART_PAD_CTRL),
+	};
+
+	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
+}
+
+static void setup_iomux_fec(void)
+{
+	static const iomux_v3_cfg_t fec_pads[] = {
+		NEW_PAD_CTRL(MX51_PAD_EIM_EB2__FEC_MDIO,
+				PAD_CTL_HYS |
+				PAD_CTL_PUS_22K_UP |
+				PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST),
+		MX51_PAD_EIM_EB3__FEC_RDATA1,
+		NEW_PAD_CTRL(MX51_PAD_EIM_CS2__FEC_RDATA2, PAD_CTL_HYS),
+		MX51_PAD_EIM_CS3__FEC_RDATA3,
+		MX51_PAD_NANDF_CS2__FEC_TX_ER,
+		MX51_PAD_EIM_CS5__FEC_CRS,
+		MX51_PAD_EIM_CS4__FEC_RX_ER,
+		/* PAD used on TS4800 */
+		MX51_PAD_DI2_PIN2__FEC_MDC,
+		MX51_PAD_DISP2_DAT14__FEC_RDAT0,
+		MX51_PAD_DISP2_DAT10__FEC_COL,
+		MX51_PAD_DISP2_DAT11__FEC_RXCLK,
+		MX51_PAD_DISP2_DAT15__FEC_TDAT0,
+		MX51_PAD_DISP2_DAT6__FEC_TDAT1,
+		MX51_PAD_DISP2_DAT7__FEC_TDAT2,
+		MX51_PAD_DISP2_DAT8__FEC_TDAT3,
+		MX51_PAD_DISP2_DAT9__FEC_TX_EN,
+		MX51_PAD_DISP2_DAT13__FEC_TX_CLK,
+		MX51_PAD_DISP2_DAT12__FEC_RX_DV,
+	};
+
+	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC_IMX
+int board_mmc_getcd(struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+	int ret;
+
+	imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_0__GPIO1_0,
+						NO_PAD_CTRL));
+	gpio_direction_input(IMX_GPIO_NR(1, 0));
+	imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_6__GPIO1_6,
+						NO_PAD_CTRL));
+	gpio_direction_input(IMX_GPIO_NR(1, 6));
+
+	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
+		ret = !gpio_get_value(IMX_GPIO_NR(1, 0));
+	else
+		ret = !gpio_get_value(IMX_GPIO_NR(1, 6));
+
+	return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	static const iomux_v3_cfg_t sd1_pads[] = {
+		NEW_PAD_CTRL(MX51_PAD_SD1_CMD__SD1_CMD, PAD_CTL_DSE_MAX |
+			PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+		NEW_PAD_CTRL(MX51_PAD_SD1_CLK__SD1_CLK, PAD_CTL_DSE_MAX |
+			PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+		NEW_PAD_CTRL(MX51_PAD_SD1_DATA0__SD1_DATA0, PAD_CTL_DSE_MAX |
+			PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+		NEW_PAD_CTRL(MX51_PAD_SD1_DATA1__SD1_DATA1, PAD_CTL_DSE_MAX |
+			PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+		NEW_PAD_CTRL(MX51_PAD_SD1_DATA2__SD1_DATA2, PAD_CTL_DSE_MAX |
+			PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
+		NEW_PAD_CTRL(MX51_PAD_SD1_DATA3__SD1_DATA3, PAD_CTL_DSE_MAX |
+			PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_SRE_FAST),
+		NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_HYS),
+		NEW_PAD_CTRL(MX51_PAD_GPIO1_1__SD1_WP, PAD_CTL_HYS),
+	};
+
+	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+
+	imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
+
+	return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
+}
+#endif
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+	setup_iomux_fec();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+/*
+ * Read the MAC address from FEC's registers PALR PAUR.
+ * User is supposed to configure these registers when MAC address is known
+ * from another source (fuse), but on TS4800, MAC address is not fused and
+ * the bootrom configure these registers on startup.
+ */
+static int fec_get_mac_from_register(uint32_t base_addr)
+{
+	unsigned char ethaddr[6];
+	u32 reg_mac[2];
+	int i;
+
+	reg_mac[0] = in_be32(base_addr + 0xE4);
+	reg_mac[1] = in_be32(base_addr + 0xE8);
+
+	for(i = 0; i < 6; i++)
+		ethaddr[i] = (reg_mac[i / 4] >> ((i % 4) * 8)) & 0xFF;
+
+	if (is_valid_ethaddr(ethaddr)) {
+		eth_env_set_enetaddr("ethaddr", ethaddr);
+		return 0;
+	}
+
+	return -1;
+}
+
+#define TS4800_GPIO_FEC_PHY_RES         IMX_GPIO_NR(2, 14)
+int board_eth_init(bd_t *bd)
+{
+	int dev_id = -1;
+	int phy_id = 0xFF;
+	uint32_t addr = IMX_FEC_BASE;
+
+	uint32_t base_mii;
+	struct mii_dev *bus = NULL;
+	struct phy_device *phydev = NULL;
+	int ret;
+
+	/* reset FEC phy */
+	imx_iomux_v3_setup_pad(MX51_PAD_EIM_A20__GPIO2_14);
+	gpio_direction_output(TS4800_GPIO_FEC_PHY_RES, 0);
+	mdelay(1);
+	gpio_set_value(TS4800_GPIO_FEC_PHY_RES, 1);
+	mdelay(1);
+
+	base_mii = addr;
+	debug("eth_init: fec_probe(bd, %i, %i) @ %08x\n", dev_id, phy_id, addr);
+	bus = fec_get_miibus(base_mii, dev_id);
+	if (!bus)
+		return -ENOMEM;
+
+	phydev = phy_find_by_mask(bus, phy_id, PHY_INTERFACE_MODE_MII);
+	if (!phydev) {
+		free(bus);
+		return -ENOMEM;
+	}
+
+	if (fec_get_mac_from_register(addr))
+		printf("eth_init: failed to get MAC address\n");
+
+	ret = fec_probe(bd, dev_id, addr, bus, phydev);
+	if (ret) {
+		free(phydev);
+		free(bus);
+	}
+
+	return ret;
+}
+
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+	return 1;
+}
+
+int checkboard(void)
+{
+	puts("Board: TS4800\n");
+
+	return 0;
+}
+
+void hw_watchdog_reset(void)
+{
+	struct ts4800_wtd_regs *wtd = (struct ts4800_wtd_regs *) (TS4800_SYSCON_BASE + 0xE);
+	/* feed the watchdog for another 10s */
+	writew(0x2, &wtd->feed);
+}
+
+void hw_watchdog_init(void)
+{
+	return;
+}

source/bootloader/u-boot-2020.01/board/technologic/ts4800/ts4800.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2015 Savoir-faire Linux Inc.
+ */
+
+#ifndef _TS4800_H
+#define _TS4800_H
+
+#define TS4800_SYSCON_BASE 0xb0010000
+
+struct ts4800_wtd_regs {
+	u16	feed;
+};
+
+#endif