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clk: rockchip: support dump cru register when panic

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黄涛
2014-04-23 17:56:07 +08:00
parent 80f2e847db
commit 193836a164
1 changed files with 13 additions and 11 deletions
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24
drivers/clk/rockchip/clk.c
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@@ -1525,17 +1525,8 @@ static void rkclk_cache_parents(struct rkclk *rkclk)
void rk_dump_cru(void)
{
u32 i;
printk("\n");
printk("dump cru regs:");
for (i = 0; i * 4 <= 0x01b0; i++) {
if (i % 4 == 0)
printk("\n%s: \t[0x%08x]: ", __func__,
(unsigned int)RK_CRU_VIRT + i * 4);
printk("%08x ", readl(RK_CRU_VIRT + i * 4));
}
printk("\n\n");
printk(KERN_WARNING "CRU:\n");
print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 4, RK_CRU_VIRT, 0x220, false);
}
EXPORT_SYMBOL_GPL(rk_dump_cru);
@@ -1815,6 +1806,16 @@ void rk_clk_test(void) {}
#endif
EXPORT_SYMBOL_GPL(rk_clk_test);
static int rkclk_panic(struct notifier_block *this, unsigned long ev, void *ptr)
{
rk_dump_cru();
return NOTIFY_DONE;
}
static struct notifier_block rkclk_panic_block = {
.notifier_call = rkclk_panic,
};
void __init rkclk_init_clks(struct device_node *node);
static struct device_node * clk_root_node=NULL;
@@ -1883,6 +1884,7 @@ static void __init rk_clk_tree_init(struct device_node *np)
rk_clk_test();
atomic_notifier_chain_register(&panic_notifier_list, &rkclk_panic_block);
}
CLK_OF_DECLARE(rk_clocks, "rockchip,rk-clocks", rk_clk_tree_init);