Commit 16d18d89 authored by Sarthak Garg's avatar Sarthak Garg Committed by Ulf Hansson
Browse files

mmc: sdhci-msm: dump vendor specific registers during error 



Implement dump_vendor_registers host operation to print the
vendor specific registers in addition to standard SDHC
register during error conditions.

Signed-off-by: default avatarSahitya Tummala <stummala@codeaurora.org>
Signed-off-by: default avatarSarthak Garg <sartgarg@codeaurora.org>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1590139950-7288-9-git-send-email-sartgarg@codeaurora.org


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent d1fe0762

drivers/mmc/host/sdhci-msm.c

+31 −0
Original line number Diff line number Diff line
@@ -1874,6 +1874,36 @@ static void sdhci_msm_reset(struct sdhci_host *host, u8 mask) 
	sdhci_reset(host, mask);

}



#define DRIVER_NAME "sdhci_msm"

#define SDHCI_MSM_DUMP(f, x...) \

	pr_err("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)



void sdhci_msm_dump_vendor_regs(struct sdhci_host *host)

{

	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);

	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);

	const struct sdhci_msm_offset *msm_offset = msm_host->offset;



	SDHCI_MSM_DUMP("----------- VENDOR REGISTER DUMP -----------\n");



	SDHCI_MSM_DUMP(

			"DLL sts: 0x%08x | DLL cfg:  0x%08x | DLL cfg2: 0x%08x\n",

		readl_relaxed(host->ioaddr + msm_offset->core_dll_status),

		readl_relaxed(host->ioaddr + msm_offset->core_dll_config),

		readl_relaxed(host->ioaddr + msm_offset->core_dll_config_2));

	SDHCI_MSM_DUMP(

			"DLL cfg3: 0x%08x | DLL usr ctl:  0x%08x | DDR cfg: 0x%08x\n",

		readl_relaxed(host->ioaddr + msm_offset->core_dll_config_3),

		readl_relaxed(host->ioaddr + msm_offset->core_dll_usr_ctl),

		readl_relaxed(host->ioaddr + msm_offset->core_ddr_config));

	SDHCI_MSM_DUMP(

			"Vndr func: 0x%08x | Vndr func2 : 0x%08x Vndr func3: 0x%08x\n",

		readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec),

		readl_relaxed(host->ioaddr +

			msm_offset->core_vendor_spec_func2),

		readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec3));

}



static const struct sdhci_msm_variant_ops mci_var_ops = {

	.msm_readl_relaxed = sdhci_msm_mci_variant_readl_relaxed,

	.msm_writel_relaxed = sdhci_msm_mci_variant_writel_relaxed,
@@ -1929,6 +1959,7 @@ static const struct sdhci_ops sdhci_msm_ops = { 
	.write_w = sdhci_msm_writew,

	.write_b = sdhci_msm_writeb,

	.irq	= sdhci_msm_cqe_irq,

	.dump_vendor_regs = sdhci_msm_dump_vendor_regs,

};



static const struct sdhci_pltfm_data sdhci_msm_pdata = {