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riscv: bootm: Pass mhartid CSR value to kernel

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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>
This commit is contained in:
Bin Meng 2018-09-26 06:55:16 -07:00 • committed by Andes
parent e5ea1e5860
commit ed49ba4dcc
1 changed files with 3 additions and 2 deletions
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5
arch/riscv/lib/bootm.c
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@ -11,6 +11,7 @@
#include <image.h> #include <image.h>
#include <u-boot/zlib.h> #include <u-boot/zlib.h>
#include <asm/byteorder.h> #include <asm/byteorder.h>
#include <asm/csr.h>
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
@ -57,9 +58,9 @@ int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
printf("\nStarting kernel ...\n\n"); printf("\nStarting kernel ...\n\n");
cleanup_before_linux(); cleanup_before_linux();
/* TODO: hardcode the hart id to zero for now */
if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
kernel(0, images->ft_addr); kernel(csr_read(mhartid), images->ft_addr);
/* does not return */ /* does not return */