diff options
Diffstat (limited to 'meta/packages/uboot/u-boot-mkimage-openmoko-native/boot-from-ram-reloc.patch')
| -rw-r--r-- | meta/packages/uboot/u-boot-mkimage-openmoko-native/boot-from-ram-reloc.patch | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/meta/packages/uboot/u-boot-mkimage-openmoko-native/boot-from-ram-reloc.patch b/meta/packages/uboot/u-boot-mkimage-openmoko-native/boot-from-ram-reloc.patch deleted file mode 100644 index 53a3e05c67..0000000000 --- a/meta/packages/uboot/u-boot-mkimage-openmoko-native/boot-from-ram-reloc.patch +++ /dev/null | |||
| @@ -1,62 +0,0 @@ | |||
| 1 | This patch allows us to boot from anywhere in RAM. It mainly sets the stage | ||
| 2 | for later patches. The only real changes here is the better handling of already | ||
| 3 | cached code (e.g., if we were started by a previous instance of u-boot), and | ||
| 4 | that we drop CONFIG_SKIP_RELOCATE_UBOOT from neo1973.h | ||
| 5 | |||
| 6 | cpu/arm920t/start.S: if not relocating, instead of going straight to | ||
| 7 | stack_setup, jump to done_relocate, which may perform other setup tasks | ||
| 8 | cpu/arm920t/start.S: after relocating, flush the cache and jump to the new code | ||
| 9 | include/configs/neo1973.h: remove CONFIG_SKIP_RELOCATE_UBOOT | ||
| 10 | |||
| 11 | - Werner Almesberger <werner@openmoko.org> | ||
| 12 | |||
| 13 | Index: u-boot/cpu/arm920t/start.S | ||
| 14 | =================================================================== | ||
| 15 | --- u-boot.orig/cpu/arm920t/start.S | ||
| 16 | +++ u-boot/cpu/arm920t/start.S | ||
| 17 | @@ -171,7 +171,7 @@ relocate: /* relocate U-Boot to RAM | ||
| 18 | adr r0, _start /* r0 <- current position of code */ | ||
| 19 | ldr r1, _TEXT_BASE /* test if we run from flash or RAM */ | ||
| 20 | cmp r0, r1 /* don't reloc during debug */ | ||
| 21 | - beq stack_setup | ||
| 22 | + beq done_relocate | ||
| 23 | |||
| 24 | ldr r2, _armboot_start | ||
| 25 | ldr r3, _bss_start | ||
| 26 | @@ -181,8 +181,14 @@ relocate: /* relocate U-Boot to RAM | ||
| 27 | copy_loop: | ||
| 28 | ldmia r0!, {r3-r10} /* copy from source address [r0] */ | ||
| 29 | stmia r1!, {r3-r10} /* copy to target address [r1] */ | ||
| 30 | - cmp r0, r2 /* until source end addreee [r2] */ | ||
| 31 | + cmp r0, r2 /* until source end address [r2] */ | ||
| 32 | ble copy_loop | ||
| 33 | + mov r0, #0 /* flush v3/v4 cache */ | ||
| 34 | + mcr p15, 0, r0, c7, c7, 0 | ||
| 35 | + ldr pc, _done_relocate /* jump to relocated code */ | ||
| 36 | +_done_relocate: | ||
| 37 | + .word done_relocate | ||
| 38 | +done_relocate: | ||
| 39 | #else /* NAND_BOOT */ | ||
| 40 | relocate: | ||
| 41 | copy_myself: | ||
| 42 | @@ -270,7 +276,7 @@ notmatch: | ||
| 43 | 1: b 1b | ||
| 44 | done_nand_read: | ||
| 45 | #endif /* NAND_BOOT */ | ||
| 46 | -#endif /* CONFIG_SKIP_RELOCATE_UBOOT */ | ||
| 47 | +#endif /* CONFIG_SKIP_RELOCATE_UBOOT */ | ||
| 48 | |||
| 49 | /* Set up the stack */ | ||
| 50 | stack_setup: | ||
| 51 | Index: u-boot/include/configs/neo1973_gta01.h | ||
| 52 | =================================================================== | ||
| 53 | --- u-boot.orig/include/configs/neo1973_gta01.h | ||
| 54 | +++ u-boot/include/configs/neo1973_gta01.h | ||
| 55 | @@ -28,7 +28,6 @@ | ||
| 56 | |||
| 57 | #if defined(BUILD_FOR_RAM) | ||
| 58 | /* If we want to start u-boot from inside RAM */ | ||
| 59 | -#define CONFIG_SKIP_RELOCATE_UBOOT 1 | ||
| 60 | #define CONFIG_SKIP_LOWLEVEL_INIT 1 | ||
| 61 | #else | ||
| 62 | /* we want to start u-boot directly from within NAND flash */ | ||
