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board/nmhw21: keep coding style and replaced magic numbers 

BugzID: 75833
Signed-off-by: Marc Mattmueller <marc.mattmueller@netmodule.com>
This commit is contained in:
Marc Mattmueller 2021-11-30 16:00:50 +01:00
parent a6b26419bc
commit 2fa18965e6
1 changed files with 18 additions and 5 deletions
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23
board/nm/nmhw21/board.c
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@ -142,6 +142,13 @@ DECLARE_GLOBAL_DATA_PTR;
#error Recovery boot time must be larger than factory reset + 1 second
#endif
/*
* CPU Reset Reason
*/
#define CPU_GLOBAL_COLD_RST 0x01
#define CPU_GLOBAL_WARM_SW_RST 0x02
#define CPU_WDT1_RESET 0x10
#if !defined(CONFIG_SPL_BUILD)
@ -469,6 +476,7 @@ static void check_reset_reason(unsigned int reset_reason_shm_location)
volatile struct reset_registers* reset_regs = (struct reset_registers*)reset_reason_shm_location;
uint32_t start_reason = 0;
uint32_t reset_reason = 0;
uint32_t cpu_reset_reason = 0;
uint8_t state = 0x00;
int bus;
int ret;
@ -507,13 +515,18 @@ static void check_reset_reason(unsigned int reset_reason_shm_location)
}
}
/* CPU reset reason -> PRM_RSTST ; watchdog reset = 0x00000010*/
int cpu_reset_reason = readl(PRM_RSTST);
if (cpu_reset_reason & 0x10) {
/*
* Check CPU reset reason register as the device can be reset
* by a CPU watchdog
*/
cpu_reset_reason = readl(PRM_RSTST);
if (cpu_reset_reason & CPU_WDT1_RESET) {
start_reason |= SR_WATCHDOG;
}
/* reset the reset reason register */
writel(0x13, PRM_RSTST);
/* clear the CPU reset reason register */
writel((CPU_WDT1_RESET | CPU_GLOBAL_COLD_RST | CPU_GLOBAL_WARM_SW_RST), PRM_RSTST);
/*
* Check Wakeup Events