mirror of
https://github.com/brain-hackers/u-boot-brain
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ed49ba4dcc
So far this is hardcoded to zero, and we should read the value from mhartid CSR and pass it to Linux kernel. Suggested-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Rick Chen <rick@andestech.com>
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 Andes Technology Corporation
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* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
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* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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* Rick Chen, Andes Technology Corporation <rick@andestech.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <image.h>
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#include <u-boot/zlib.h>
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#include <asm/byteorder.h>
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#include <asm/csr.h>
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DECLARE_GLOBAL_DATA_PTR;
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__weak void board_quiesce_devices(void)
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{
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}
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int arch_fixup_fdt(void *blob)
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{
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return 0;
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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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void (*kernel)(ulong hart, void *dtb);
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/*
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* allow the PREP bootm subcommand, it is required for bootm to work
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*/
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if (flag & BOOTM_STATE_OS_PREP)
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return 0;
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if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
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return 1;
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kernel = (void (*)(ulong, void *))images->ep;
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bootstage_mark(BOOTSTAGE_ID_RUN_OS);
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debug("## Transferring control to Linux (at address %08lx) ...\n",
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(ulong)kernel);
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if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
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#ifdef CONFIG_OF_LIBFDT
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debug("using: FDT\n");
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if (image_setup_linux(images)) {
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printf("FDT creation failed! hanging...");
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hang();
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}
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#endif
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}
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/* we assume that the kernel is in place */
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printf("\nStarting kernel ...\n\n");
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cleanup_before_linux();
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if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
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kernel(csr_read(mhartid), images->ft_addr);
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/* does not return */
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return 1;
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}
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