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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 <rainer.boschung@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Boschung, Rainer 2014-06-03 09:05:17 +02:00 committed by York Sun
parent 88ac6ffabb
commit 807d93d6de
2 changed files with 17 additions and 0 deletions
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2
board/keymile/kmp204x/kmp204x.h
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@ -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);

15
board/keymile/kmp204x/qrio.c
View File

@ -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);
}