diff options
Diffstat (limited to 'arch/arm/boot/compressed/head-vt8500.S')
| -rw-r--r-- | arch/arm/boot/compressed/head-vt8500.S | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/boot/compressed/head-vt8500.S b/arch/arm/boot/compressed/head-vt8500.S new file mode 100644 index 00000000..1dc1e21a --- /dev/null +++ b/arch/arm/boot/compressed/head-vt8500.S @@ -0,0 +1,46 @@ +/* + * linux/arch/arm/boot/compressed/head-vt8500.S + * + * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com> + * + * VIA VT8500 specific tweaks. This is merged into head.S by the linker. + * + */ + +#include <linux/linkage.h> +#include <asm/mach-types.h> + + .section ".start", "ax" + +__VT8500_start: + @ Compare the SCC ID register against a list of known values + ldr r1, .SCCID + ldr r3, [r1] + + @ VT8500 override + ldr r4, .VT8500SCC + cmp r3, r4 + ldreq r7, .ID_BV07 + beq .Lendvt8500 + + @ WM8505 override + ldr r4, .WM8505SCC + cmp r3, r4 + ldreq r7, .ID_8505 + beq .Lendvt8500 + + @ Otherwise, leave the bootloader's machine id untouched + +.SCCID: + .word 0xd8120000 +.VT8500SCC: + .word 0x34000102 +.WM8505SCC: + .word 0x34260103 + +.ID_BV07: + .word MACH_TYPE_BV07 +.ID_8505: + .word MACH_TYPE_WM8505_7IN_NETBOOK + +.Lendvt8500: |