From 807d93d6de5f54cfdcc98bb6c392b2b1f4237dc8 Mon Sep 17 00:00:00 2001 From: "Boschung, Rainer" Date: Tue, 3 Jun 2014 09:05:17 +0200 Subject: kmp204x/qrio: prepare support for the CPU watchdog reset reason To achieve this, the qrio_cpuwd_flag() function that sets the CPU watchdog flag in the REASON1 reg is added. Signed-off-by: Rainer Boschung Signed-off-by: Valentin Longchamp Reviewed-by: York Sun --- board/keymile/kmp204x/kmp204x.h | 2 ++ board/keymile/kmp204x/qrio.c | 15 +++++++++++++++ 2 files changed, 17 insertions(+) (limited to 'board') diff --git a/board/keymile/kmp204x/kmp204x.h b/board/keymile/kmp204x/kmp204x.h index afede99..64c0afb 100644 --- a/board/keymile/kmp204x/kmp204x.h +++ b/board/keymile/kmp204x/kmp204x.h @@ -24,5 +24,7 @@ void qrio_wdmask(u8 bit, bool wden); void qrio_prstcfg(u8 bit, u8 mode); void qrio_set_leds(void); void qrio_enable_app_buffer(void); +void qrio_cpuwd_flag(bool flag); +int qrio_reset_reason(void); void pci_of_setup(void *blob, bd_t *bd); diff --git a/board/keymile/kmp204x/qrio.c b/board/keymile/kmp204x/qrio.c index b6ba93a..92e8022 100644 --- a/board/keymile/kmp204x/qrio.c +++ b/board/keymile/kmp204x/qrio.c @@ -173,3 +173,18 @@ void qrio_enable_app_buffer(void) ctrll |= (CTRLL_WRB_BUFENA); out_8(qrio_base + CTRLL_OFF, ctrll); } + +#define REASON1_OFF 0x12 +#define REASON1_CPUWD 0x01 + +void qrio_cpuwd_flag(bool flag) +{ + u8 reason1; + void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE; + reason1 = in_8(qrio_base + REASON1_OFF); + if (flag) + reason1 |= REASON1_CPUWD; + else + reason1 &= ~REASON1_CPUWD; + out_8(qrio_base + REASON1_OFF, reason1); +} -- cgit v1.1