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From: Chanho Park <chanho61.park@samsung.com>
To: Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	"James E . J . Bottomley" <jejb@linux.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Bean Huo <beanhuo@micron.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Christoph Hellwig <hch@infradead.org>,
	Can Guo <cang@codeaurora.org>, Jaegeuk Kim <jaegeuk@kernel.org>,
	Gyunghoon Kwon <goodjob.kwon@samsung.com>,
	linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org,
	Chanho Park <chanho61.park@samsung.com>,
	Kiwoong Kim <kwmad.kim@samsung.com>
Subject: [PATCH v3 14/17] scsi: ufs: ufs-exynos: support exynosauto v9 ufs driver
Date: Fri, 17 Sep 2021 15:54:33 +0900	[thread overview]
Message-ID: <20210917065436.145629-15-chanho61.park@samsung.com> (raw)
In-Reply-To: <20210917065436.145629-1-chanho61.park@samsung.com>

This patch adds to support ufs variant for ExynosAuto v9 SoC. This
requires control UFS IP sharability register via syscon and regmap.
Regarding uic_attr, most of values can be shared with exynos7 except
tx_dif_p_nsec value.

Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 96 +++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 7fb4514f700d..28f027d45917 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -15,6 +15,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
+#include <linux/regmap.h>
 
 #include "ufshcd.h"
 #include "ufshcd-pltfrm.h"
@@ -76,6 +77,12 @@
 				 UIC_TRANSPORT_NO_CONNECTION_RX |\
 				 UIC_TRANSPORT_BAD_TC)
 
+/* FSYS UFS Shareability */
+#define UFS_WR_SHARABLE		BIT(2)
+#define UFS_RD_SHARABLE		BIT(1)
+#define UFS_SHARABLE		(UFS_WR_SHARABLE | UFS_RD_SHARABLE)
+#define UFS_SHAREABILITY_OFFSET	0x710
+
 enum {
 	UNIPRO_L1_5 = 0,/* PHY Adapter */
 	UNIPRO_L2,	/* Data Link */
@@ -151,6 +158,79 @@ static int exynos7_ufs_drv_init(struct device *dev, struct exynos_ufs *ufs)
 	return 0;
 }
 
+static int exynosauto_ufs_drv_init(struct device *dev, struct exynos_ufs *ufs)
+{
+	struct exynos_ufs_uic_attr *attr = ufs->drv_data->uic_attr;
+
+	/* IO Coherency setting */
+	if (ufs->sysreg) {
+		return regmap_update_bits(ufs->sysreg, UFS_SHAREABILITY_OFFSET,
+					  UFS_SHARABLE, UFS_SHARABLE);
+	}
+
+	attr->tx_dif_p_nsec = 3200000;
+
+	return 0;
+}
+
+static int exynosauto_ufs_pre_link(struct exynos_ufs *ufs)
+{
+	struct ufs_hba *hba = ufs->hba;
+	int i;
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x40);
+	for_each_ufs_rx_lane(ufs, i) {
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x12, i),
+			       DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate));
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x11, i), 0x0);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1b, i), 0x2);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1c, i), 0x8a);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1d, i), 0xa3);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1b, i), 0x2);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1c, i), 0x8a);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1d, i), 0xa3);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x2f, i), 0x79);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x84, i), 0x1);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x25, i), 0xf6);
+	}
+
+	for_each_ufs_tx_lane(ufs, i) {
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xaa, i),
+			       DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate));
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xa9, i), 0x02);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xab, i), 0x8);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xac, i), 0x22);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xad, i), 0x8);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x04, i), 0x1);
+	}
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x0);
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0x0);
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(0xa011), 0x8000);
+
+	return 0;
+}
+
+static int exynosauto_ufs_pre_pwr_change(struct exynos_ufs *ufs,
+					 struct ufs_pa_layer_attr *pwr)
+{
+	struct ufs_hba *hba = ufs->hba;
+
+	/* PACP_PWR_req and delivered to the remote DME */
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA0), 12000);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA1), 32000);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA2), 16000);
+
+	return 0;
+}
+
 static int exynos7_ufs_pre_link(struct exynos_ufs *ufs)
 {
 	struct ufs_hba *hba = ufs->hba;
@@ -1305,6 +1385,20 @@ static struct exynos_ufs_uic_attr exynos7_uic_attr = {
 	.pa_dbg_option_suite		= 0x30103,
 };
 
+static struct exynos_ufs_drv_data exynosauto_ufs_drvs = {
+	.uic_attr		= &exynos7_uic_attr,
+	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
+				  UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR |
+				  UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR |
+				  UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING,
+	.opts			= EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL |
+				  EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR |
+				  EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX,
+	.drv_init		= exynosauto_ufs_drv_init,
+	.pre_link		= exynosauto_ufs_pre_link,
+	.pre_pwr_change		= exynosauto_ufs_pre_pwr_change,
+};
+
 static struct exynos_ufs_drv_data exynos_ufs_drvs = {
 	.uic_attr		= &exynos7_uic_attr,
 	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
@@ -1330,6 +1424,8 @@ static struct exynos_ufs_drv_data exynos_ufs_drvs = {
 static const struct of_device_id exynos_ufs_of_match[] = {
 	{ .compatible = "samsung,exynos7-ufs",
 	  .data	      = &exynos_ufs_drvs },
+	{ .compatible = "samsung,exynosautov9-ufs",
+	  .data	      = &exynosauto_ufs_drvs },
 	{},
 };
 
-- 
2.33.0


  parent reply	other threads:[~2021-09-17  6:56 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20210917065522epcas2p2c9c7baccfc82b3798804c351dbf676eb@epcas2p2.samsung.com>
2021-09-17  6:54 ` [PATCH v3 00/17] introduce " Chanho Park
     [not found]   ` <CGME20210917065522epcas2p49ce06e9686c9b6f5cb1dd16ca9d82052@epcas2p4.samsung.com>
2021-09-17  6:54     ` [PATCH v3 01/17] scsi: ufs: add quirk to handle broken UIC command Chanho Park
2021-09-23  3:44       ` Alim Akhtar
     [not found]   ` <CGME20210917065522epcas2p4ed13768faa6aa6d33116606e2601321e@epcas2p4.samsung.com>
2021-09-17  6:54     ` [PATCH v3 02/17] scsi: ufs: add quirk to enable host controller without ph configuration Chanho Park
2021-09-23  3:48       ` Alim Akhtar
     [not found]   ` <CGME20210917065522epcas2p26f56b37c3f7505b9d0e34bc2162fdbbd@epcas2p2.samsung.com>
2021-09-17  6:54     ` [PATCH v3 03/17] scsi: ufs: ufs-exynos: change pclk available max value Chanho Park
2021-09-27  5:25       ` Inki Dae
2021-09-27  6:46         ` Chanho Park
2021-09-27  7:11           ` Inki Dae
2021-09-27 11:08             ` Chanho Park
2021-09-28  2:18               ` Inki Dae
     [not found]   ` <CGME20210917065522epcas2p23066a1bd5e39ac1931d7e38064fe23dd@epcas2p2.samsung.com>
2021-09-17  6:54     ` [PATCH v3 04/17] scsi: ufs: ufs-exynos: simplify drv_data retrieval Chanho Park
     [not found]   ` <CGME20210917065523epcas2p3ff66daa15c8c782f839422756c388d93@epcas2p3.samsung.com>
2021-09-17  6:54     ` [PATCH v3 05/17] dt-bindings: ufs: exynos-ufs: add sysreg regmap property Chanho Park
2021-09-22 19:57       ` Rob Herring
2021-09-23  0:47         ` Chanho Park
2021-09-23 12:39           ` Rob Herring
2021-09-24  1:10             ` Chanho Park
     [not found]   ` <CGME20210917065523epcas2p477a63b06cbb9f5588aa2c149c9d1db10@epcas2p4.samsung.com>
2021-09-17  6:54     ` [PATCH v3 06/17] scsi: ufs: ufs-exynos: get sysreg regmap for io-coherency Chanho Park
2021-09-22 19:55       ` Rob Herring
2021-09-23  0:39         ` Chanho Park
2021-09-23 12:26           ` Rob Herring
2021-09-24  0:59             ` Chanho Park
     [not found]   ` <CGME20210917065523epcas2p44a9f121c18e0f3a5614f980c9eeffa16@epcas2p4.samsung.com>
2021-09-17  6:54     ` [PATCH v3 07/17] scsi: ufs: ufs-exynos: add refclkout_stop control Chanho Park
     [not found]   ` <CGME20210917065523epcas2p1215e9f56482339ca8a9346a0ac2bfe23@epcas2p1.samsung.com>
2021-09-17  6:54     ` [PATCH v3 08/17] scsi: ufs: ufs-exynos: add setup_clocks callback Chanho Park
2021-09-23  3:51       ` Alim Akhtar
     [not found]   ` <CGME20210917065523epcas2p15b648b88af85252fe12ff8026307526a@epcas2p1.samsung.com>
2021-09-17  6:54     ` [PATCH v3 09/17] scsi: ufs: ufs-exynos: correct timeout value setting registers Chanho Park
2021-09-23  4:14       ` Alim Akhtar
2021-09-23  5:47         ` Chanho Park
     [not found]   ` <CGME20210917065523epcas2p39e18203beafe9377e9dac819f01b804f@epcas2p3.samsung.com>
2021-09-17  6:54     ` [PATCH v3 10/17] scsi: ufs: ufs-exynos: support custom version of ufs_hba_variant_ops Chanho Park
2021-09-23  4:28       ` Alim Akhtar
     [not found]   ` <CGME20210917065523epcas2p3b178e3d9d2d4db628f597732be9c6856@epcas2p3.samsung.com>
2021-09-17  6:54     ` [PATCH v3 11/17] scsi: ufs: ufs-exynos: add EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR option Chanho Park
2021-09-23  4:32       ` Alim Akhtar
     [not found]   ` <CGME20210917065523epcas2p2cb63cd8924be44e6eaa42c7213bd15d4@epcas2p2.samsung.com>
2021-09-17  6:54     ` [PATCH v3 12/17] scsi: ufs: ufs-exynos: factor out priv data init Chanho Park
     [not found]   ` <CGME20210917065523epcas2p4fc1be41c739361dd6ae9d167cfc631dc@epcas2p4.samsung.com>
2021-09-17  6:54     ` [PATCH v3 13/17] scsi: ufs: ufs-exynos: add pre/post_hce_enable drv callbacks Chanho Park
2021-09-23  4:51       ` Alim Akhtar
     [not found]   ` <CGME20210917065523epcas2p47156d9fba5b8d8a5e5908ccdc0ae1655@epcas2p4.samsung.com>
2021-09-17  6:54     ` Chanho Park [this message]
     [not found]   ` <CGME20210917065524epcas2p18a720757ef3c4fc08d4bc8d16f9fe7fe@epcas2p1.samsung.com>
2021-09-17  6:54     ` [PATCH v3 15/17] scsi: ufs: ufs-exynos: multi-host configuration for exynosauto Chanho Park
2021-09-27  5:31       ` Inki Dae
2021-09-27  6:56         ` Chanho Park
     [not found]   ` <CGME20210917065524epcas2p3929f70cb0b62e6ca85a6f4814b61fae1@epcas2p3.samsung.com>
2021-09-17  6:54     ` [PATCH v3 16/17] scsi: ufs: ufs-exynos: introduce exynosauto v9 virtual host Chanho Park
     [not found]   ` <CGME20210917065524epcas2p455b2900227b6a20994bec4816248f2bf@epcas2p4.samsung.com>
2021-09-17  6:54     ` [PATCH v3 17/17] dt-bindings: ufs: exynos-ufs: add exynosautov9 compatible Chanho Park
2021-09-22 19:58       ` Rob Herring

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