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Diffstat (limited to 'arch/arm/mach-spear/restart.c')
| -rw-r--r-- | arch/arm/mach-spear/restart.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-spear/restart.c b/arch/arm/mach-spear/restart.c new file mode 100644 index 0000000000..76fb16cc81 --- /dev/null +++ b/arch/arm/mach-spear/restart.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * arch/arm/plat-spear/restart.c + * + * SPEAr platform specific restart functions + * + * Copyright (C) 2009 ST Microelectronics + * Viresh Kumar <vireshk@kernel.org> + */ +#include <linux/io.h> +#include <linux/amba/sp810.h> +#include <linux/reboot.h> +#include <asm/system_misc.h> +#include "spear.h" +#include "generic.h" + +#define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204) +void spear_restart(enum reboot_mode mode, const char *cmd) +{ + if (mode == REBOOT_SOFT) { + /* software reset, Jump into ROM at address 0 */ + soft_restart(0); + } else { + /* hardware reset, Use on-chip reset capability */ +#ifdef CONFIG_ARCH_SPEAR13XX + writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES); +#endif +#if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX) + sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE); +#endif + } +} |