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mmc: sdhci-uhs2: dump UHS-II registers

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

Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Message-ID: <20241018105333.4569-5-victorshihgli@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Victor Shih
2024-10-18 18:53:21 +08:00
committed by Ulf Hansson
parent 2af7dd8b64
commit 0f8186f146
4 changed files with 38 additions and 0 deletions
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30
drivers/mmc/host/sdhci-uhs2.c
View File

@@ -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);
/*****************************************************************************\
* *

4
drivers/mmc/host/sdhci-uhs2.h
View File

@@ -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 */

3
drivers/mmc/host/sdhci.c
View File

@@ -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);

1
drivers/mmc/host/sdhci.h
View File

@@ -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