mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-21 18:39:43 +09:00
5c2859cdc3
It is useful to be able to save and restore the RAM contents of sandbox U-Boot either for setting up tests, for later analysys, or for chaining together multiple tests which need to keep the same memory contents. Add a function to provide a memory file for U-Boot. This is read on start-up and written when shutting down. If the file does not exist on start-up, it will be created when shutting down. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
69 lines
1.2 KiB
C
69 lines
1.2 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <os.h>
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#include <asm/state.h>
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DECLARE_GLOBAL_DATA_PTR;
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void reset_cpu(ulong ignored)
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{
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if (state_uninit())
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os_exit(2);
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/* This is considered normal termination for now */
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os_exit(0);
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}
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int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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reset_cpu(0);
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return 0;
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}
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/* delay x useconds */
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void __udelay(unsigned long usec)
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{
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os_usleep(usec);
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}
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unsigned long __attribute__((no_instrument_function)) timer_get_us(void)
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{
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return os_get_nsec() / 1000;
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}
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int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
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{
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if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
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bootstage_mark(BOOTSTAGE_ID_RUN_OS);
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printf("## Transferring control to Linux (at address %08lx)...\n",
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images->ep);
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reset_cpu(0);
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}
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return 0;
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}
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int cleanup_before_linux(void)
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{
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return 0;
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}
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void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
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{
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return (void *)(gd->arch.ram_buf + paddr);
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}
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phys_addr_t map_to_sysmem(void *ptr)
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{
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return (u8 *)ptr - gd->arch.ram_buf;
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}
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void flush_dcache_range(unsigned long start, unsigned long stop)
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{
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}
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