From 8a55843716b45c162b0ed130080fa959e421ec34 Mon Sep 17 00:00:00 2001 From: Elaine Zhang Date: Tue, 26 Mar 2019 15:38:32 +0800 Subject: [PATCH] clk: rockchip: rk3036: add cru regs dump for panic Add cru regs dump when system panic. It's just for debug. Change-Id: Ic60f491d549e030490c14ea78f4857a8cead596d Signed-off-by: Elaine Zhang --- drivers/clk/rockchip/clk-rk3036.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c index e14d48cf20ee..b57b6d716526 100644 --- a/drivers/clk/rockchip/clk-rk3036.c +++ b/drivers/clk/rockchip/clk-rk3036.c @@ -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);