From: Ben Chuang <benchuanggli@gmail.com>
To: adrian.hunter@intel.com, ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
ben.chuang@genesyslogic.com.tw, takahiro.akashi@linaro.org,
greg.tu@genesyslogic.com.tw, Ben Chuang <benchuanggli@gmail.com>
Subject: [RFC PATCH V3 10/21] mmc: sdhci: UHS-II support, dump UHS-II registers
Date: Fri, 10 Jul 2020 19:10:34 +0800 [thread overview]
Message-ID: <20200710111034.29456-1-benchuanggli@gmail.com> (raw)
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
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>
---
drivers/mmc/host/sdhci.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 37b1158c1c0c..c2f6923d296c 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -111,6 +111,30 @@ void sdhci_dumpregs(struct sdhci_host *host)
}
}
+ if (IS_ENABLED(CONFIG_MMC_SDHCI_UHS2) &&
+ host->mmc && host->mmc->flags & MMC_UHS2_SUPPORT) {
+ SDHCI_DUMP("==================== UHS2 ==================\n");
+ SDHCI_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_DUMP("Cmd: 0x%08x | Trn mode: 0x%08x\n",
+ sdhci_readw(host, SDHCI_UHS2_COMMAND),
+ sdhci_readw(host, SDHCI_UHS2_TRANS_MODE));
+ SDHCI_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_DUMP("Dev Int Code: 0x%08x\n",
+ sdhci_readb(host, SDHCI_UHS2_DEV_INT_CODE));
+ SDHCI_DUMP("Reset: 0x%08x | Timer: 0x%08x\n",
+ sdhci_readw(host, SDHCI_UHS2_SW_RESET),
+ sdhci_readw(host, SDHCI_UHS2_TIMER_CTRL));
+ SDHCI_DUMP("ErrInt: 0x%08x | ErrIntEn: 0x%08x\n",
+ sdhci_readl(host, SDHCI_UHS2_ERR_INT_STATUS),
+ sdhci_readl(host, SDHCI_UHS2_ERR_INT_STATUS_EN));
+ SDHCI_DUMP("ErrSigEn: 0x%08x\n",
+ sdhci_readl(host, SDHCI_UHS2_ERR_INT_SIG_EN));
+ }
+
if (host->ops->dump_vendor_regs)
host->ops->dump_vendor_regs(host);
--
2.27.0
next reply other threads:[~2020-07-10 11:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 11:10 Ben Chuang [this message]
2020-08-21 14:04 ` [RFC PATCH V3 10/21] mmc: sdhci: UHS-II support, dump UHS-II registers Adrian Hunter
2020-09-15 6:49 ` AKASHI Takahiro
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