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- /*
- * Copyright (C) 2017-2020 Alibaba Group Holding Limited
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #include <common.h>
- #include <command.h>
- #include <image.h>
- #include <u-boot/zlib.h>
- #include <asm/byteorder.h>
- #include <linux/libfdt.h>
- #include <mapmem.h>
- #include <fdt_support.h>
- #include <linux/compiler.h>
- #include <bootm.h>
- #include <vxworks.h>
- #include <asm/arch/interrupt.h>
- #include <irq_func.h>
- #include <cpu_func.h>
- DECLARE_GLOBAL_DATA_PTR;
- __weak int board_prep_linux(bootm_headers_t *images) { return 0; }
- /* Main Entry point for csky bootm implementation
- *
- * Modeled after the powerpc implementation
- * DIFFERENCE: Instead of calling prep and go at the end
- * they are called if subcommand is equal 0.
- */
- int do_bootm_linux(int flag, int argc, char * const argv[],
- bootm_headers_t *images)
- {
- void (*theKernel)(int magic, void * params);
- char *tmp;
- unsigned int dtb_load_addr = 0;
- if ((tmp = env_get("dtb_load_addr_virt")) != NULL) {
- dtb_load_addr = simple_strtoul(tmp, NULL, 16);
- printf("dtb_load_addr: 0x%X\n", dtb_load_addr);
- } else {
- printf("\nError! No dtb address found! Stop here...\n");
- while (1);
- }
- theKernel = (void (*)(int, void *))images->ep;
- printf("\nStarting kernel ... \n\n");
- disable_interrupts();
- flush_cache(0, 0);
- #ifdef CONFIG_ERAGON3
- /* Open the D cache */
- asm volatile(
- "mfcr r4, cr18\n"
- "bseti r4, 3 \n"
- "mtcr r4, cr18\n"
- :
- :
- : "r4"
- );
- #endif
- board_prep_linux(images);
- theKernel(0x20150401, (void *)dtb_load_addr);
- return 1;
- }
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