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

source/bootloader/u-boot-2020.01/board/xilinx/zynq/board.c

@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2012 Michal Simek <monstr@monstr.eu>
+ * (C) Copyright 2013 - 2018 Xilinx, Inc.
+ */
+
+#include <common.h>
+#include <init.h>
+#include <dm/uclass.h>
+#include <env.h>
+#include <fdtdec.h>
+#include <fpga.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <watchdog.h>
+#include <wdt.h>
+#include <zynqpl.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	return 0;
+}
+
+int board_late_init(void)
+{
+	int env_targets_len = 0;
+	const char *mode;
+	char *new_targets;
+	char *env_targets;
+
+	switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
+	case ZYNQ_BM_QSPI:
+		mode = "qspi";
+		env_set("modeboot", "qspiboot");
+		break;
+	case ZYNQ_BM_NAND:
+		mode = "nand";
+		env_set("modeboot", "nandboot");
+		break;
+	case ZYNQ_BM_NOR:
+		mode = "nor";
+		env_set("modeboot", "norboot");
+		break;
+	case ZYNQ_BM_SD:
+		mode = "mmc0";
+		env_set("modeboot", "sdboot");
+		break;
+	case ZYNQ_BM_JTAG:
+		mode = "pxe dhcp";
+		env_set("modeboot", "jtagboot");
+		break;
+	default:
+		mode = "";
+		env_set("modeboot", "");
+		break;
+	}
+
+	/*
+	 * One terminating char + one byte for space between mode
+	 * and default boot_targets
+	 */
+	env_targets = env_get("boot_targets");
+	if (env_targets)
+		env_targets_len = strlen(env_targets);
+
+	new_targets = calloc(1, strlen(mode) + env_targets_len + 2);
+	if (!new_targets)
+		return -ENOMEM;
+
+	sprintf(new_targets, "%s %s", mode,
+		env_targets ? env_targets : "");
+
+	env_set("boot_targets", new_targets);
+
+	return 0;
+}
+
+#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
+int dram_init_banksize(void)
+{
+	return fdtdec_setup_memory_banksize();
+}
+
+int dram_init(void)
+{
+	if (fdtdec_setup_mem_size_base() != 0)
+		return -EINVAL;
+
+	zynq_ddrc_init();
+
+	return 0;
+}
+#else
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+
+	zynq_ddrc_init();
+
+	return 0;
+}
+#endif