[U-Boot] [PATCH 3/4] arm: sunxi: h6: fix reset using r_wdog

Clément Péron
2019-04-08T16:49:50Z

WDOG in H6 is broken so the reset is actually not working.

Use the R_WDOG instead.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h | 1 +
arch/arm/mach-sunxi/board.c | 9 +++++++--
2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h b/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h
index 41a9b0fc47..6392cb07b4 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h
@@ -60,6 +60,7 @@
#define SUNXI_RTC_BASE 0x07000000
#define SUNXI_R_CPUCFG_BASE 0x07000400
#define SUNXI_PRCM_BASE 0x07010000
+#define SUNXI_R_WDOG_BASE 0x07020400
#define SUNXI_R_PIO_BASE 0x07022000
#define SUNXI_R_UART_BASE 0x07080000
#define SUNXI_R_TWI_BASE 0x07081400
diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c
index b74eaf2a0e..3f8128fbf4 100644
--- a/arch/arm/mach-sunxi/board.c
+++ b/arch/arm/mach-sunxi/board.c
@@ -287,9 +287,14 @@ void reset_cpu(ulong addr)
writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode);
}
#elif defined(CONFIG_SUNXI_GEN_SUN6I) || defined(CONFIG_MACH_SUN50I_H6)
+#if defined(CONFIG_MACH_SUN50I_H6)
+ /* WDOG is broken for H6 use the R_WDOG instead */
static const struct sunxi_wdog *wdog =
- ((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog;
-
+ (struct sunxi_wdog *)SUNXI_R_WDOG_BASE;
+#else
+ static const struct sunxi_wdog *wdog =
+ ((struct sunxi_timer_reg *)SUNXI_TIMER_BASE)->wdog;
+#endif
/* Set the watchdog for its shortest interval (.5s) and wait */
writel(WDT_CFG_RESET, &wdog->cfg);
writel(WDT_MODE_EN, &wdog->mode);
--
2.17.1