diff options
Diffstat (limited to 'arch/arm/mach-at91/at91sam9g45_reset.S')
| -rw-r--r-- | arch/arm/mach-at91/at91sam9g45_reset.S | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_reset.S b/arch/arm/mach-at91/at91sam9g45_reset.S deleted file mode 100644 index c40c1e2ef80f..000000000000 --- a/arch/arm/mach-at91/at91sam9g45_reset.S +++ /dev/null @@ -1,45 +0,0 @@ -/* - * reset AT91SAM9G45 as per errata - * - * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcosoft.com> - * - * unless the SDRAM is cleanly shutdown before we hit the - * reset register it can be left driving the data bus and - * killing the chance of a subsequent boot from NAND - * - * GPLv2 Only - */ - -#include <linux/linkage.h> -#include <mach/hardware.h> -#include <mach/at91_ramc.h> -#include "at91_rstc.h" - .arm - -/* - * at91_ramc_base is an array void* - * init at NULL if only one DDR controler is present in or DT - */ - .globl at91sam9g45_restart - -at91sam9g45_restart: - ldr r5, =at91_ramc_base @ preload constants - ldr r0, [r5] - ldr r5, [r5, #4] @ ddr1 - cmp r5, #0 - ldr r4, =at91_rstc_base - ldr r1, [r4] - - mov r2, #1 - mov r3, #AT91_DDRSDRC_LPCB_POWER_DOWN - ldr r4, =AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST - - .balign 32 @ align to cache line - - strne r2, [r5, #AT91_DDRSDRC_RTR] @ disable DDR1 access - strne r3, [r5, #AT91_DDRSDRC_LPR] @ power down DDR1 - str r2, [r0, #AT91_DDRSDRC_RTR] @ disable DDR0 access - str r3, [r0, #AT91_DDRSDRC_LPR] @ power down DDR0 - str r4, [r1, #AT91_RSTC_CR] @ reset processor - - b . |