Commit 0f8186f1 authored by Victor Shih's avatar Victor Shih Committed by Ulf Hansson
Browse files

mmc: sdhci-uhs2: dump UHS-II registers 



Dump UHS-II specific registers, if available, in sdhci_dumpregs()
for informative/debugging use.

Signed-off-by: default avatarBen Chuang <ben.chuang@genesyslogic.com.tw>
Signed-off-by: default avatarAKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: default avatarVictor Shih <victor.shih@genesyslogic.com.tw>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Message-ID: <20241018105333.4569-5-victorshihgli@gmail.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 2af7dd8b

drivers/mmc/host/sdhci-uhs2.c

+30 −0
Original line number Diff line number Diff line
@@ -18,6 +18,36 @@ 
#define DRIVER_NAME "sdhci_uhs2"

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

	pr_debug(DRIVER_NAME " [%s()]: " f, __func__, ## x)

#define SDHCI_UHS2_DUMP(f, x...) \

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



void sdhci_uhs2_dump_regs(struct sdhci_host *host)

{

	if (!(mmc_card_uhs2(host->mmc)))

		return;



	SDHCI_UHS2_DUMP("==================== UHS2 ==================\n");

	SDHCI_UHS2_DUMP("Blk Size:  0x%08x | Blk Cnt:  0x%08x\n",

			sdhci_readw(host, SDHCI_UHS2_BLOCK_SIZE),

			sdhci_readl(host, SDHCI_UHS2_BLOCK_COUNT));

	SDHCI_UHS2_DUMP("Cmd:       0x%08x | Trn mode: 0x%08x\n",

			sdhci_readw(host, SDHCI_UHS2_CMD),

			sdhci_readw(host, SDHCI_UHS2_TRANS_MODE));

	SDHCI_UHS2_DUMP("Int Stat:  0x%08x | Dev Sel : 0x%08x\n",

			sdhci_readw(host, SDHCI_UHS2_DEV_INT_STATUS),

			sdhci_readb(host, SDHCI_UHS2_DEV_SELECT));

	SDHCI_UHS2_DUMP("Dev Int Code:  0x%08x\n",

			sdhci_readb(host, SDHCI_UHS2_DEV_INT_CODE));

	SDHCI_UHS2_DUMP("Reset:     0x%08x | Timer:    0x%08x\n",

			sdhci_readw(host, SDHCI_UHS2_SW_RESET),

			sdhci_readw(host, SDHCI_UHS2_TIMER_CTRL));

	SDHCI_UHS2_DUMP("ErrInt:    0x%08x | ErrIntEn: 0x%08x\n",

			sdhci_readl(host, SDHCI_UHS2_INT_STATUS),

			sdhci_readl(host, SDHCI_UHS2_INT_STATUS_ENABLE));

	SDHCI_UHS2_DUMP("ErrSigEn:  0x%08x\n",

			sdhci_readl(host, SDHCI_UHS2_INT_SIGNAL_ENABLE));

}

EXPORT_SYMBOL_GPL(sdhci_uhs2_dump_regs);



/*****************************************************************************\

 *                                                                           *

drivers/mmc/host/sdhci-uhs2.h

+4 −0
Original line number Diff line number Diff line
@@ -172,4 +172,8 @@ 
#define SDHCI_UHS2_EMBED_CTRL_PTR		0xE6

#define SDHCI_UHS2_VENDOR_PTR			0xE8



struct sdhci_host;



void sdhci_uhs2_dump_regs(struct sdhci_host *host);



#endif /* __SDHCI_UHS2_H */

drivers/mmc/host/sdhci.c

+3 −0
Original line number Diff line number Diff line
@@ -110,6 +110,9 @@ void sdhci_dumpregs(struct sdhci_host *host) 
		}

	}



	if (host->ops->dump_uhs2_regs)

		host->ops->dump_uhs2_regs(host);



	if (host->ops->dump_vendor_regs)

		host->ops->dump_vendor_regs(host);

drivers/mmc/host/sdhci.h

+1 −0
Original line number Diff line number Diff line
@@ -719,6 +719,7 @@ struct sdhci_ops { 
	void	(*request_done)(struct sdhci_host *host,

				struct mmc_request *mrq);

	void    (*dump_vendor_regs)(struct sdhci_host *host);

	void	(*dump_uhs2_regs)(struct sdhci_host *host);

};



#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS