From 03aca6529a59f7268b4c11bcf1393ac18b2d581a Mon Sep 17 00:00:00 2001 From: Elaine Zhang Date: Tue, 26 Mar 2019 15:35:02 +0800 Subject: [PATCH] clk: rockchip: rk3228: add cru regs dump for panic Add cru regs dump when system panic. It's just for debug. Change-Id: Ide2c3e8add083934672f6d22d8182bcfde046783 Signed-off-by: Elaine Zhang --- drivers/clk/rockchip/clk-rk3228.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/clk/rockchip/clk-rk3228.c b/drivers/clk/rockchip/clk-rk3228.c index b9948dfd43d0..f1aae39b0ce4 100644 --- a/drivers/clk/rockchip/clk-rk3228.c +++ b/drivers/clk/rockchip/clk-rk3228.c @@ -675,6 +675,18 @@ static const char *const rk3228_critical_clocks[] __initconst = { "hclk_rkvdec", }; +static void __iomem *rk3228_cru_base; + +static void rk3228_dump_cru(void) +{ + if (rk3228_cru_base) { + pr_warn("CRU:\n"); + print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, + 32, 4, rk3228_cru_base, + 0x1f8, false); + } +} + static void __init rk3228_clk_init(struct device_node *np) { struct rockchip_clk_provider *ctx; @@ -712,5 +724,10 @@ static void __init rk3228_clk_init(struct device_node *np) rockchip_register_restart_notifier(ctx, RK3228_GLB_SRST_FST, NULL); rockchip_clk_of_add_provider(np, ctx); + + if (!rk_dump_cru) { + rk3228_cru_base = reg_base; + rk_dump_cru = rk3228_dump_cru; + } } CLK_OF_DECLARE(rk3228_cru, "rockchip,rk3228-cru", rk3228_clk_init);