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clk: rockchip: rk3036: add cru regs dump for panic

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Add cru regs dump when system panic.
It's just for debug.

Change-Id: Ic60f491d549e030490c14ea78f4857a8cead596d
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
This commit is contained in:
Elaine Zhang
2019-03-26 15:38:32 +08:00
committed by Tao Huang
parent 40a55dc2a4
commit 8a55843716
1 changed files with 17 additions and 0 deletions
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17
drivers/clk/rockchip/clk-rk3036.c
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@@ -436,6 +436,18 @@ static const char *const rk3036_critical_clocks[] __initconst = {
"pclk_ddrupctl",
};
static void __iomem *rk3036_cru_base;
static void rk3036_dump_cru(void)
{
if (rk3036_cru_base) {
pr_warn("CRU:\n");
print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET,
32, 4, rk3036_cru_base,
0x1f8, false);
}
}
static void __init rk3036_clk_init(struct device_node *np)
{
struct rockchip_clk_provider *ctx;
@@ -486,5 +498,10 @@ static void __init rk3036_clk_init(struct device_node *np)
rockchip_register_restart_notifier(ctx, RK2928_GLB_SRST_FST, NULL);
rockchip_clk_of_add_provider(np, ctx);
if (!rk_dump_cru) {
rk3036_cru_base = reg_base;
rk_dump_cru = rk3036_dump_cru;
}
}
CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init);