diff options
Diffstat (limited to 'arch/xtensa/boot/boot-redboot/bootstrap.S')
| -rw-r--r-- | arch/xtensa/boot/boot-redboot/bootstrap.S | 55 |
1 files changed, 29 insertions, 26 deletions
diff --git a/arch/xtensa/boot/boot-redboot/bootstrap.S b/arch/xtensa/boot/boot-redboot/bootstrap.S index ee636b0da81..86c34dbc9cd 100644 --- a/arch/xtensa/boot/boot-redboot/bootstrap.S +++ b/arch/xtensa/boot/boot-redboot/bootstrap.S @@ -1,9 +1,7 @@ - -#define _ASMLANGUAGE -#include <xtensa/config/specreg.h> -#include <xtensa/config/core.h> -#include <xtensa/cacheasm.h> - +#include <variant/core.h> +#include <asm/regs.h> +#include <asm/asmmacro.h> +#include <asm/cacheasm.h> /* * RB-Data: RedBoot data/bss * P: Boot-Parameters @@ -53,17 +51,17 @@ _start: /* 'reset' window registers */ movi a4, 1 - wsr a4, PS + wsr a4, ps rsync - rsr a5, WINDOWBASE + rsr a5, windowbase ssl a5 sll a4, a4 - wsr a4, WINDOWSTART + wsr a4, windowstart rsync movi a4, 0x00040000 - wsr a4, PS + wsr a4, ps rsync /* copy the loader to its address @@ -77,8 +75,14 @@ _start: /* Note: The assembler cannot relax "addi a0, a0, ..." to an l32r, so we load to a4 first. */ - addi a4, a0, __start - __start_a0 - mov a0, a4 + # addi a4, a0, __start - __start_a0 + # mov a0, a4 + + movi a4, __start + movi a5, __start_a0 + add a4, a0, a4 + sub a0, a4, a5 + movi a4, __start movi a5, __reloc_end @@ -106,9 +110,13 @@ _start: /* We have to flush and invalidate the caches here before we jump. */ #if XCHAL_DCACHE_IS_WRITEBACK - dcache_writeback_all a5, a6 + + ___flush_dcache_all a5 a6 + #endif - icache_invalidate_all a5, a6 + + ___invalidate_icache_all a5 a6 + isync movi a11, _reloc jx a11 @@ -209,21 +217,16 @@ _reloc: /* jump to the kernel */ 2: #if XCHAL_DCACHE_IS_WRITEBACK - dcache_writeback_all a5, a6 + + ___flush_dcache_all a5 a6 + #endif - icache_invalidate_all a5, a6 - - movi a5, __start - movi a3, boot_initrd_start - movi a4, boot_initrd_end - sub a3, a3, a5 - sub a4, a4, a5 - add a3, a0, a3 - add a4, a0, a4 + + ___invalidate_icache_all a5 a6 + + isync # a2 Boot parameter list - # a3 initrd_start (virtual load address) - # a4 initrd_end (virtual load address) movi a0, _image_start jx a0 |