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clk: rockchip: rk3308: add cru regs dump for panic

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

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Change-Id: I3c39c974523238b0140492be5e9eceb1811b3945
This commit is contained in:
Finley Xiao
2021-07-22 09:49:15 +08:00
committed by Tao Huang
parent ddbda6c6df
commit 6669a99505
1 changed files with 17 additions and 0 deletions
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17
drivers/clk/rockchip/clk-rk3308.c
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@@ -921,6 +921,18 @@ static struct rockchip_clk_branch rk3308b_dclk_vop_frac[] __initdata = {
&rk3308_dclk_vop_fracmux, RK3308B_VOP_FRAC_MAX_PRATE),
};
static void __iomem *rk3308_cru_base;
void rk3308_dump_cru(void)
{
if (rk3308_cru_base) {
pr_warn("CRU:\n");
print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET,
32, 4, rk3308_cru_base,
0x500, false);
}
}
static void __init rk3308_clk_init(struct device_node *np)
{
struct rockchip_clk_provider *ctx;
@@ -964,6 +976,11 @@ static void __init rk3308_clk_init(struct device_node *np)
rockchip_register_restart_notifier(ctx, RK3308_GLB_SRST_FST, NULL);
rockchip_clk_of_add_provider(np, ctx);
if (!rk_dump_cru) {
rk3308_cru_base = reg_base;
rk_dump_cru = rk3308_dump_cru;
}
}
CLK_OF_DECLARE(rk3308_cru, "rockchip,rk3308-cru", rk3308_clk_init);