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soc: rockchip: debug: access dbgpcsr when cpu is up

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Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Change-Id: I8ac1e3dba85c69e6a1febf9e3259bb0417fc6509
This commit is contained in:
Huibin Hong
2020-04-27 16:59:50 +08:00
committed by Tao Huang
parent eb9a258810
commit c3a11b6021
1 changed files with 20 additions and 1 deletions
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21
drivers/soc/rockchip/rockchip_debug.c
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@@ -62,6 +62,9 @@
#define EDLAR 0xfb0
#define EDLAR_UNLOCK 0xc5acce55
#define EDPRSR 0x314
#define EDPRSR_PU 0x1
#define NUM_CPU_SAMPLES 100
#define NUM_SAMPLES_TO_PRINT 32
@@ -71,14 +74,22 @@ static void __iomem *rockchip_cpu_debug[16];
int rockchip_debug_dump_pcsr(struct fiq_debugger_output *output)
{
unsigned long dbgpcsr;
int i = 0, j;
int i = 0, j = 0;
void *pc = NULL;
void *prev_pc = NULL;
int printed = 0;
void __iomem *base;
u32 pu = 0;
while (rockchip_cpu_debug[i]) {
base = rockchip_cpu_debug[i];
pu = (u32)readl(base + EDPRSR) & EDPRSR_PU;
if (pu != EDPRSR_PU) {
i++;
continue;
}
/* Unlock EDLSR.SLK so that EDPCSRhi gets populated */
writel(EDLAR_UNLOCK, base + EDLAR);
@@ -123,6 +134,7 @@ static int rockchip_panic_notify(struct notifier_block *nb, unsigned long event,
void *prev_pc = NULL;
int printed = 0;
void __iomem *base;
u32 pu = 0;
/*
* The panic handler will try to shut down the other CPUs.
@@ -133,6 +145,13 @@ static int rockchip_panic_notify(struct notifier_block *nb, unsigned long event,
while (rockchip_cpu_debug[i]) {
base = rockchip_cpu_debug[i];
pu = (u32)readl(base + EDPRSR) & EDPRSR_PU;
if (pu != EDPRSR_PU) {
i++;
continue;
}
/* Unlock EDLSR.SLK so that EDPCSRhi gets populated */
writel(EDLAR_UNLOCK, base + EDLAR);