From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<jejb@linux.ibm.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>,
bvanassche@acm.org, andy.teng@mediatek.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
linux-kernel@vger.kernel.org, cang@codeaurora.org,
linux-mediatek@lists.infradead.org, peter.wang@mediatek.com,
matthias.bgg@gmail.com, beanhuo@micron.com,
linux-arm-kernel@lists.infradead.org, asutoshd@codeaurora.org
Subject: [PATCH v1 1/3] scsi: ufs-mediatek: add dbg_register_dump implementation
Date: Fri, 17 Jan 2020 11:51:06 +0800 [thread overview]
Message-ID: <20200117035108.19699-2-stanley.chu@mediatek.com> (raw)
In-Reply-To: <20200117035108.19699-1-stanley.chu@mediatek.com>
Add dbg_register_dump variant vendor implementation in MediaTek
UFS driver.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/scsi/ufs/ufs-mediatek.c | 16 ++++++++++++++++
drivers/scsi/ufs/ufs-mediatek.h | 5 +++++
2 files changed, 21 insertions(+)
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 8d999c0e60fe..d5194d0c4ef5 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -406,6 +406,21 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
return 0;
}
+static void ufs_mtk_dbg_register_dump(struct ufs_hba *hba)
+{
+ ufshcd_dump_regs(hba, REG_UFS_REFCLK_CTRL, 0x4, "Ref-Clk Ctrl ");
+
+ ufshcd_dump_regs(hba, REG_UFS_EXTREG, 0x4, "Ext Reg ");
+
+ ufshcd_dump_regs(hba, REG_UFS_MPHYCTRL,
+ REG_UFS_REJECT_MON - REG_UFS_MPHYCTRL + 4,
+ "MPHY Ctrl ");
+
+ /* Direct debugging information to REG_MTK_PROBE */
+ ufshcd_writel(hba, 0x20, REG_UFS_DEBUG_SEL);
+ ufshcd_dump_regs(hba, REG_UFS_PROBE, 0x4, "Debug Probe ");
+}
+
static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba,
struct ufs_dev_desc *card)
{
@@ -430,6 +445,7 @@ static struct ufs_hba_variant_ops ufs_hba_mtk_vops = {
.apply_dev_quirks = ufs_mtk_apply_dev_quirks,
.suspend = ufs_mtk_suspend,
.resume = ufs_mtk_resume,
+ .dbg_register_dump = ufs_mtk_dbg_register_dump,
.device_reset = ufs_mtk_device_reset,
};
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index 31b7fead19eb..fccdd979d6fb 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -13,6 +13,11 @@
* Vendor specific UFSHCI Registers
*/
#define REG_UFS_REFCLK_CTRL 0x144
+#define REG_UFS_EXTREG 0x2100
+#define REG_UFS_MPHYCTRL 0x2200
+#define REG_UFS_REJECT_MON 0x22AC
+#define REG_UFS_DEBUG_SEL 0x22C0
+#define REG_UFS_PROBE 0x22C8
/*
* Ref-clk control
--
2.18.0
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next prev parent reply other threads:[~2020-01-17 4:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-17 3:51 [PATCH v1 0/3] scsi: ufs-mediatek: add MediaTek vendor implementation part II Stanley Chu
2020-01-17 3:51 ` Stanley Chu [this message]
2020-01-19 14:05 ` [PATCH v1 1/3] scsi: ufs-mediatek: add dbg_register_dump implementation Alim Akhtar
2020-01-17 3:51 ` [PATCH v1 2/3] scsi: ufs: export some functions for vendor usage Stanley Chu
2020-01-19 14:12 ` Alim Akhtar
2020-01-20 20:49 ` Asutosh Das (asd)
2020-01-17 3:51 ` [PATCH v1 3/3] scsi: ufs-mediatek: enable low-power mode for hibern8 state Stanley Chu
2020-01-19 14:27 ` Alim Akhtar
2020-01-20 20:52 ` Asutosh Das (asd)
2020-01-21 0:10 ` [PATCH v1 0/3] scsi: ufs-mediatek: add MediaTek vendor implementation part II Martin K. Petersen
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