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

source/bootloader/u-boot-2020.01/board/ge/mx53ppd/mx53ppd.c

@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2017 General Electric Company
+ *
+ * Based on board/freescale/mx53loco/mx53loco.c:
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ * Jason Liu <r64343@freescale.com>
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/iomux-mx53.h>
+#include <asm/arch/clock.h>
+#include <env.h>
+#include <linux/errno.h>
+#include <linux/libfdt.h>
+#include <asm/mach-imx/mxc_i2c.h>
+#include <asm/mach-imx/mx5_video.h>
+#include <netdev.h>
+#include <i2c.h>
+#include <mmc.h>
+#include <fsl_esdhc_imx.h>
+#include <asm/gpio.h>
+#include <power/pmic.h>
+#include <dialog_pmic.h>
+#include <fsl_pmic.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
+#include <version.h>
+#include <watchdog.h>
+#include "ppd_gpio.h"
+#include <stdlib.h>
+#include "../../ge/common/ge_common.h"
+#include "../../ge/common/vpd_reader.h"
+
+#define MX53PPD_LCD_POWER		IMX_GPIO_NR(3, 24)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static u32 mx53_dram_size[2];
+
+phys_size_t get_effective_memsize(void)
+{
+	/*
+	 * WARNING: We must override get_effective_memsize() function here
+	 * to report only the size of the first DRAM bank. This is to make
+	 * U-Boot relocator place U-Boot into valid memory, that is, at the
+	 * end of the first DRAM bank. If we did not override this function
+	 * like so, U-Boot would be placed at the address of the first DRAM
+	 * bank + total DRAM size - sizeof(uboot), which in the setup where
+	 * each DRAM bank contains 512MiB of DRAM would result in placing
+	 * U-Boot into invalid memory area close to the end of the first
+	 * DRAM bank.
+	 */
+	return mx53_dram_size[0];
+}
+
+int dram_init(void)
+{
+	mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
+	mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
+
+	gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = mx53_dram_size[0];
+
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size = mx53_dram_size[1];
+
+	return 0;
+}
+
+u32 get_board_rev(void)
+{
+	return get_cpu_rev() & ~(0xF << 8);
+}
+
+#define UART_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
+			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
+
+#ifdef CONFIG_USB_EHCI_MX5
+int board_ehci_hcd_init(int port)
+{
+	/* request VBUS power enable pin, GPIO7_8 */
+	imx_iomux_v3_setup_pad(MX53_PAD_PATA_DA_2__GPIO7_8);
+	gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
+	return 0;
+}
+#endif
+
+static void setup_iomux_fec(void)
+{
+	static const iomux_v3_cfg_t fec_pads[] = {
+		NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
+			     PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP |
+			     PAD_CTL_ODE),
+		NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
+		NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
+			     PAD_CTL_HYS | PAD_CTL_PKE),
+		NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
+			     PAD_CTL_HYS | PAD_CTL_PKE),
+		NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
+		NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
+		NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
+		NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
+			     PAD_CTL_HYS | PAD_CTL_PKE),
+		NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
+			     PAD_CTL_HYS | PAD_CTL_PKE),
+		NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
+			     PAD_CTL_HYS | PAD_CTL_PKE),
+	};
+
+	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
+}
+
+#define I2C_PAD_CTRL	(PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
+			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
+
+static void setup_iomux_i2c(void)
+{
+	static const iomux_v3_cfg_t i2c1_pads[] = {
+		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
+		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
+	};
+
+	imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
+}
+
+#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
+
+static struct i2c_pads_info i2c_pad_info1 = {
+	.scl = {
+		.i2c_mode = MX53_PAD_EIM_D21__I2C1_SCL | I2C_PAD,
+		.gpio_mode = MX53_PAD_EIM_D28__GPIO3_28 | I2C_PAD,
+		.gp = IMX_GPIO_NR(3, 28)
+	},
+	.sda = {
+		.i2c_mode = MX53_PAD_EIM_D28__I2C1_SDA | I2C_PAD,
+		.gpio_mode = MX53_PAD_EIM_D21__GPIO3_21 | I2C_PAD,
+		.gp = IMX_GPIO_NR(3, 21)
+	}
+};
+
+static int clock_1GHz(void)
+{
+	int ret;
+	u32 ref_clk = MXC_HCLK;
+	/*
+	 * After increasing voltage to 1.25V, we can switch
+	 * CPU clock to 1GHz and DDR to 400MHz safely
+	 */
+	ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
+	if (ret) {
+		printf("CPU:   Switch CPU clock to 1GHZ failed\n");
+		return -1;
+	}
+
+	ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
+	ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
+	if (ret) {
+		printf("CPU:   Switch DDR clock to 400MHz failed\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+void ppd_gpio_init(void)
+{
+	int i;
+
+	imx_iomux_v3_setup_multiple_pads(ppd_pads, ARRAY_SIZE(ppd_pads));
+	for (i = 0; i < ARRAY_SIZE(ppd_gpios); ++i)
+		gpio_direction_output(ppd_gpios[i].gpio, ppd_gpios[i].value);
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_fec();
+	setup_iomux_lcd();
+	ppd_gpio_init();
+
+	return 0;
+}
+
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+	return 1;
+}
+
+#define VPD_TYPE_INVALID 0x00
+#define VPD_BLOCK_NETWORK 0x20
+#define VPD_BLOCK_HWID 0x44
+#define VPD_PRODUCT_PPD 4
+#define VPD_HAS_MAC1 0x1
+#define VPD_MAC_ADDRESS_LENGTH 6
+
+struct vpd_cache {
+	u8 product_id;
+	u8 has;
+	unsigned char mac1[VPD_MAC_ADDRESS_LENGTH];
+};
+
+/*
+ * Extracts MAC and product information from the VPD.
+ */
+static int vpd_callback(struct vpd_cache *userdata, u8 id, u8 version,
+			u8 type, size_t size, u8 const *data)
+{
+	struct vpd_cache *vpd = userdata;
+
+	if (id == VPD_BLOCK_HWID && version == 1 && type != VPD_TYPE_INVALID &&
+	    size >= 1) {
+		vpd->product_id = data[0];
+
+	} else if (id == VPD_BLOCK_NETWORK && version == 1 &&
+		   type != VPD_TYPE_INVALID) {
+		if (size >= 6) {
+			vpd->has |= VPD_HAS_MAC1;
+			memcpy(vpd->mac1, data, VPD_MAC_ADDRESS_LENGTH);
+		}
+	}
+
+	return 0;
+}
+
+static void process_vpd(struct vpd_cache *vpd)
+{
+	int fec_index = -1;
+
+	if (vpd->product_id == VPD_PRODUCT_PPD)
+		fec_index = 0;
+
+	if (fec_index >= 0 && (vpd->has & VPD_HAS_MAC1))
+		eth_env_set_enetaddr("ethaddr", vpd->mac1);
+}
+
+int board_init(void)
+{
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	mxc_set_sata_internal_clock();
+	setup_iomux_i2c();
+
+	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	const char *cause;
+
+	/* We care about WDOG only, treating everything else as
+	 * a power-on-reset.
+	 */
+	if (get_imx_reset_cause() & 0x0010)
+		cause = "WDOG";
+	else
+		cause = "POR";
+
+	env_set("bootcause", cause);
+
+	return 0;
+}
+
+int board_late_init(void)
+{
+	int res;
+	struct vpd_cache vpd;
+
+	memset(&vpd, 0, sizeof(vpd));
+	res = read_vpd(&vpd, vpd_callback);
+	if (!res)
+		process_vpd(&vpd);
+	else
+		printf("Can't read VPD");
+
+	res = clock_1GHz();
+	if (res != 0)
+		return res;
+
+	print_cpuinfo();
+	hw_watchdog_init();
+
+	check_time();
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: GE PPD\n");
+
+	return 0;
+}
+
+#ifdef CONFIG_OF_BOARD_SETUP
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	fdt_setprop(blob, 0, "ge,boot-ver", version_string,
+	                                    strlen(version_string) + 1);
+	return 0;
+}
+#endif