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

source/bootloader/u-boot-2020.01/board/xilinx/microblaze-generic/Kconfig

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+if TARGET_MICROBLAZE_GENERIC
+
+config SYS_BOARD
+	default "microblaze-generic"
+
+config SYS_VENDOR
+	default "xilinx"
+
+config SYS_CONFIG_NAME
+	string "Board configuration name"
+	default "microblaze-generic"
+	help
+	  This option contains information about board configuration name.
+	  Based on this option include/configs/<CONFIG_SYS_CONFIG_NAME>.h header
+	  will be used for board configuration.
+
+config XILINX_MICROBLAZE0_USE_MSR_INSTR
+	int "USE_MSR_INSTR range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_PCMP_INSTR
+	int "USE_PCMP_INSTR range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_BARREL
+	int "USE_BARREL range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_DIV
+	int "USE_DIV range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_HW_MUL
+	int "USE_HW_MUL values (0=NONE, 1=MUL32, 2=MUL64)"
+	default 0
+
+config XILINX_MICROBLAZE0_HW_VER
+	string "Core version number"
+	default "7.10.d"
+
+endif

source/bootloader/u-boot-2020.01/board/xilinx/microblaze-generic/MAINTAINERS

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+MICROBLAZE-GENERIC BOARD
+M:	Michal Simek <monstr@monstr.eu>
+S:	Maintained
+F:	board/xilinx/microblaze-generic/
+F:	include/configs/microblaze-generic.h
+F:	configs/microblaze-generic_defconfig

source/bootloader/u-boot-2020.01/board/xilinx/microblaze-generic/Makefile

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+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+
+obj-y	= microblaze-generic.o

source/bootloader/u-boot-2020.01/board/xilinx/microblaze-generic/config.mk

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+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2007 - 2016 Michal Simek
+#
+# Michal SIMEK <monstr@monstr.eu>
+
+CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
+
+# USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
+CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+
+CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
+
+PLATFORM_CPPFLAGS += $(CPUFLAGS-1) $(CPUFLAGS-2)

source/bootloader/u-boot-2020.01/board/xilinx/microblaze-generic/microblaze-generic.c

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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2007-2018 Michal Simek
+ *
+ * Michal SIMEK <monstr@monstr.eu>
+ */
+
+/*
+ * This is a board specific file.  It's OK to include board specific
+ * header files
+ */
+
+#include <common.h>
+#include <config.h>
+#include <init.h>
+#include <dm/lists.h>
+#include <fdtdec.h>
+#include <linux/sizes.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init_banksize(void)
+{
+	return fdtdec_setup_memory_banksize();
+}
+
+int dram_init(void)
+{
+	if (fdtdec_setup_mem_size_base() != 0)
+		return -EINVAL;
+
+	return 0;
+};
+
+int board_late_init(void)
+{
+	ulong max_size, lowmem_size;
+
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SYSRESET_MICROBLAZE)
+	int ret;
+
+	ret = device_bind_driver(gd->dm_root, "mb_soft_reset",
+				 "reset_soft", NULL);
+	if (ret)
+		printf("Warning: No reset driver: ret=%d\n", ret);
+#endif
+
+	if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
+		debug("Saved variables - Skipping\n");
+		return 0;
+	}
+
+	max_size = gd->start_addr_sp - CONFIG_STACK_SIZE;
+	max_size = round_down(max_size, SZ_16M);
+
+	/* Linux default LOWMEM_SIZE is 0x30000000 = 768MB */
+	lowmem_size = gd->ram_base + 768 * 1024 * 1024;
+
+	env_set_addr("initrd_high", (void *)min_t(ulong, max_size,
+						  lowmem_size));
+	env_set_addr("fdt_high", (void *)min_t(ulong, max_size, lowmem_size));
+
+	return 0;
+}

source/bootloader/u-boot-2020.01/board/xilinx/microblaze-generic/xparameters.h

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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * CAUTION: This file is a faked configuration !!!
+ *          There is no real target for the microblaze-generic
+ *          configuration. You have to replace this file with
+ *          the generated file from your Xilinx design flow.
+ */
+
+/* Microblaze is microblaze_0 */
+#define XILINX_FSL_NUMBER	3
+
+/* Flash Memory is FLASH_2Mx32 */
+#define XILINX_FLASH_START	0x2c000000
+#define XILINX_FLASH_SIZE	0x00800000