diff options
Diffstat (limited to 'arch/arm/mach-bcm/kona.c')
| -rw-r--r-- | arch/arm/mach-bcm/kona.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/arch/arm/mach-bcm/kona.c b/arch/arm/mach-bcm/kona.c index 2f1db29291f..768bc2837bf 100644 --- a/arch/arm/mach-bcm/kona.c +++ b/arch/arm/mach-bcm/kona.c @@ -11,10 +11,8 @@ * GNU General Public License for more details. */ -#include <linux/of_address.h> #include <linux/of_platform.h> #include <asm/hardware/cache-l2x0.h> -#include <asm/io.h> #include "bcm_kona_smc.h" #include "kona.h" @@ -43,51 +41,3 @@ void __init kona_l2_cache_init(void) if (ret) pr_err("Couldn't enable L2 cache: %d\n", ret); } - -static void __iomem *watchdog_base; - -void bcm_kona_setup_restart(void) -{ - struct device_node *np_wdog; - - /* - * The assumption is that whoever calls bcm_kona_setup_restart() - * also needs a Kona Watchdog Timer entry in Device Tree, i.e. we - * report an error if the DT entry is missing. - */ - np_wdog = of_find_compatible_node(NULL, NULL, "brcm,kona-wdt"); - if (!np_wdog) { - pr_err("brcm,kona-wdt not found in DT, reboot disabled\n"); - return; - } - watchdog_base = of_iomap(np_wdog, 0); - WARN(!watchdog_base, "failed to map watchdog base"); - of_node_put(np_wdog); -} - -#define SECWDOG_OFFSET 0x00000000 -#define SECWDOG_RESERVED_MASK 0xE2000000 -#define SECWDOG_WD_LOAD_FLAG_MASK 0x10000000 -#define SECWDOG_EN_MASK 0x08000000 -#define SECWDOG_SRSTEN_MASK 0x04000000 -#define SECWDOG_CLKS_SHIFT 20 -#define SECWDOG_LOCK_SHIFT 0 - -void bcm_kona_restart(enum reboot_mode mode, const char *cmd) -{ - uint32_t val; - - if (!watchdog_base) - panic("Watchdog not mapped. Reboot failed.\n"); - - /* Enable watchdog2 with very short timeout. */ - val = readl(watchdog_base + SECWDOG_OFFSET); - val &= SECWDOG_RESERVED_MASK | SECWDOG_WD_LOAD_FLAG_MASK; - val |= SECWDOG_EN_MASK | SECWDOG_SRSTEN_MASK | - (0x8 << SECWDOG_CLKS_SHIFT) | - (0x8 << SECWDOG_LOCK_SHIFT); - writel(val, watchdog_base + SECWDOG_OFFSET); - - while (1) - ; -} |