summaryrefslogtreecommitdiff
path: root/drivers/phy/samsung/phy-exynos7-ufs.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-01 08:35:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-01 08:35:06 -0700
commitba1dc7f273c73b93e0e1dd9707b239ed69eebd70 (patch)
treef79ee28c2b88fde1a901619f9b4c72dffeaa2337 /drivers/phy/samsung/phy-exynos7-ufs.c
parent9e9fb7655ed585da8f468e29221f0ba194a5f613 (diff)
parent0dc3ad3f859d3a65b335c861ec342d31d91e8bc8 (diff)
Merge tag 'char-misc-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver updates from Greg KH: "Here is the big set of char/misc driver changes for 5.15-rc1. Lots of different driver subsystems are being updated in here, notably: - mhi subsystem update - fpga subsystem update - coresight/hwtracing subsystem update - interconnect subsystem update - nvmem subsystem update - parport drivers update - phy subsystem update - soundwire subsystem update and there are some other char/misc drivers being updated as well: - binder driver additions - new misc drivers - lkdtm driver updates - mei driver updates - sram driver updates - other minor driver updates. Note, there are no habanalabs driver updates in this pull request, that will probably come later before -rc1 is out in a different request. All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits) Revert "bus: mhi: Add inbound buffers allocation flag" misc/pvpanic: fix set driver data VMCI: fix NULL pointer dereference when unmapping queue pair char: mware: fix returnvar.cocci warnings parport: remove non-zero check on count soundwire: cadence: do not extend reset delay soundwire: intel: conditionally exit clock stop mode on system suspend soundwire: intel: skip suspend/resume/wake when link was not started soundwire: intel: fix potential race condition during power down phy: qcom-qmp: Add support for SM6115 UFS phy dt-bindings: phy: qcom,qmp: Add SM6115 UFS PHY bindings phy: qmp: Provide unique clock names for DP clocks lkdtm: remove IDE_CORE_CP crashpoint lkdtm: replace SCSI_DISPATCH_CMD with SCSI_QUEUE_RQ coresight: Replace deprecated CPU-hotplug functions. Documentation: coresight: Add documentation for CoreSight config coresight: syscfg: Add initial configfs support coresight: config: Add preloaded configurations coresight: etm4x: Add complex configuration handlers to etmv4 coresight: etm-perf: Update to activate selected configuration ...
Diffstat (limited to 'drivers/phy/samsung/phy-exynos7-ufs.c')
-rw-r--r--drivers/phy/samsung/phy-exynos7-ufs.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/phy/samsung/phy-exynos7-ufs.c b/drivers/phy/samsung/phy-exynos7-ufs.c
new file mode 100644
index 000000000000..7c9008e163db
--- /dev/null
+++ b/drivers/phy/samsung/phy-exynos7-ufs.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * UFS PHY driver data for Samsung EXYNOS7 SoC
+ *
+ * Copyright (C) 2020 Samsung Electronics Co., Ltd.
+ */
+
+#include "phy-samsung-ufs.h"
+
+#define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL 0x720
+#define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1
+#define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0)
+
+/* Calibration for phy initialization */
+static const struct samsung_ufs_phy_cfg exynos7_pre_init_cfg[] = {
+ PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_ANY),
+ PHY_COMN_REG_CFG(0x010, 0x82, PWR_MODE_ANY),
+ PHY_COMN_REG_CFG(0x011, 0x1e, PWR_MODE_ANY),
+ PHY_COMN_REG_CFG(0x017, 0x84, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x035, 0x58, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x036, 0x32, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x037, 0x40, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x03b, 0x83, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x042, 0x88, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x043, 0xa6, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x048, 0x74, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x04c, 0x5b, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x04d, 0x83, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x05c, 0x14, PWR_MODE_ANY),
+ END_UFS_PHY_CFG
+};
+
+/* Calibration for HS mode series A/B */
+static const struct samsung_ufs_phy_cfg exynos7_pre_pwr_hs_cfg[] = {
+ PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_HS_ANY),
+ PHY_COMN_REG_CFG(0x010, 0x82, PWR_MODE_HS_ANY),
+ PHY_COMN_REG_CFG(0x011, 0x1e, PWR_MODE_HS_ANY),
+ /* Setting order: 1st(0x16, 2nd(0x15) */
+ PHY_COMN_REG_CFG(0x016, 0xff, PWR_MODE_HS_ANY),
+ PHY_COMN_REG_CFG(0x015, 0x80, PWR_MODE_HS_ANY),
+ PHY_COMN_REG_CFG(0x017, 0x94, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x036, 0x32, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x037, 0x43, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x038, 0x3f, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x042, 0x88, PWR_MODE_HS_G2_SER_A),
+ PHY_TRSV_REG_CFG(0x042, 0xbb, PWR_MODE_HS_G2_SER_B),
+ PHY_TRSV_REG_CFG(0x043, 0xa6, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x048, 0x74, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x034, 0x35, PWR_MODE_HS_G2_SER_A),
+ PHY_TRSV_REG_CFG(0x034, 0x36, PWR_MODE_HS_G2_SER_B),
+ PHY_TRSV_REG_CFG(0x035, 0x5b, PWR_MODE_HS_G2_SER_A),
+ PHY_TRSV_REG_CFG(0x035, 0x5c, PWR_MODE_HS_G2_SER_B),
+ END_UFS_PHY_CFG
+};
+
+/* Calibration for HS mode series A/B atfer PMC */
+static const struct samsung_ufs_phy_cfg exynos7_post_pwr_hs_cfg[] = {
+ PHY_COMN_REG_CFG(0x015, 0x00, PWR_MODE_HS_ANY),
+ PHY_TRSV_REG_CFG(0x04d, 0x83, PWR_MODE_HS_ANY),
+ END_UFS_PHY_CFG
+};
+
+static const struct samsung_ufs_phy_cfg *exynos7_ufs_phy_cfgs[CFG_TAG_MAX] = {
+ [CFG_PRE_INIT] = exynos7_pre_init_cfg,
+ [CFG_PRE_PWR_HS] = exynos7_pre_pwr_hs_cfg,
+ [CFG_POST_PWR_HS] = exynos7_post_pwr_hs_cfg,
+};
+
+const struct samsung_ufs_phy_drvdata exynos7_ufs_phy = {
+ .cfg = exynos7_ufs_phy_cfgs,
+ .isol = {
+ .offset = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL,
+ .mask = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK,
+ .en = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN,
+ },
+ .has_symbol_clk = 1,
+};