diff options
Diffstat (limited to 'arch/arm/mach-at91/at91sam9_alt_reset.S')
-rw-r--r-- | arch/arm/mach-at91/at91sam9_alt_reset.S | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/arch/arm/mach-at91/at91sam9_alt_reset.S b/arch/arm/mach-at91/at91sam9_alt_reset.S deleted file mode 100644 index f039538d3bdb..000000000000 --- a/arch/arm/mach-at91/at91sam9_alt_reset.S +++ /dev/null | |||
@@ -1,40 +0,0 @@ | |||
1 | /* | ||
2 | * reset AT91SAM9G20 as per errata | ||
3 | * | ||
4 | * (C) BitBox Ltd 2010 | ||
5 | * | ||
6 | * unless the SDRAM is cleanly shutdown before we hit the | ||
7 | * reset register it can be left driving the data bus and | ||
8 | * killing the chance of a subsequent boot from NAND | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation; either version 2 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | */ | ||
15 | |||
16 | #include <linux/linkage.h> | ||
17 | #include <mach/hardware.h> | ||
18 | #include <mach/at91_ramc.h> | ||
19 | #include "at91_rstc.h" | ||
20 | |||
21 | .arm | ||
22 | |||
23 | .globl at91sam9_alt_restart | ||
24 | |||
25 | at91sam9_alt_restart: ldr r0, =at91_ramc_base @ preload constants | ||
26 | ldr r0, [r0] | ||
27 | ldr r4, =at91_rstc_base | ||
28 | ldr r1, [r4] | ||
29 | |||
30 | mov r2, #1 | ||
31 | mov r3, #AT91_SDRAMC_LPCB_POWER_DOWN | ||
32 | ldr r4, =AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST | ||
33 | |||
34 | .balign 32 @ align to cache line | ||
35 | |||
36 | str r2, [r0, #AT91_SDRAMC_TR] @ disable SDRAM access | ||
37 | str r3, [r0, #AT91_SDRAMC_LPR] @ power down SDRAM | ||
38 | str r4, [r1, #AT91_RSTC_CR] @ reset processor | ||
39 | |||
40 | b . | ||