This patchset adds driver support for UFS for Hi3660 SoC. It is verified on HiKey960 board.
Li Wei (5):
scsi: ufs: add Hisilicon ufs driver code
dt-bindings: scsi: ufs: add document for hisi-ufs
arm64: dts: add ufs dts node
arm64: defconfig: enable configs for Hisilicon ufs
arm64: defconfig: enable f2fs and squashfs
Documentation/devicetree/bindings/ufs/ufs-hisi.txt | 38 ++
arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 20 +
arch/arm64/configs/defconfig | 11 +
drivers/scsi/ufs/Kconfig | 9 +
drivers/scsi/ufs/Makefile | 1 +
drivers/scsi/ufs/ufs-hisi.c | 624 +++++++++++++++++++++
drivers/scsi/ufs/ufs-hisi.h | 122 ++++
7 files changed, 825 insertions(+)
create mode 100644 Documentation/devicetree/bindings/ufs/ufs-hisi.txt
create mode 100644 drivers/scsi/ufs/ufs-hisi.c
create mode 100644 drivers/scsi/ufs/ufs-hisi.h
--
2.15.0
arm64: dts: add ufs node for Hisilicon.
Signed-off-by: Li Wei <[email protected]>
---
arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index ab0b95ba5ae5..3c57346366ad 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -904,6 +904,26 @@
reset-gpios = <&gpio11 1 0 >;
};
+ /* UFS */
+ ufs: ufs@ff3b0000 {
+ compatible = "hisilicon,hi3660-ufs", "jedec,ufs-1.1";
+ /* 0: HCI standard */
+ /* 1: UFS SYS CTRL */
+ reg = <0x0 0xff3b0000 0x0 0x1000>,
+ <0x0 0xff3b1000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_UFSIO_REF>,
+ <&crg_ctrl HI3660_CLK_GATE_UFSPHY_CFG>;
+ clock-names = "ref_clk", "phy_clk";
+ freq-table-hz = <0 0>, <0 0>;
+ /* offset: 0x84; bit: 12 */
+ /* offset: 0x84; bit: 7 */
+ resets = <&crg_rst 0x84 12>,
+ <&crg_rst 0x84 7>;
+ reset-names = "rst", "assert";
+ };
+
/* SD */
dwmmc1: dwmmc1@ff37f000 {
#address-cells = <1>;
--
2.15.0
add Hisilicon ufs driver code.
Signed-off-by: Li Wei <[email protected]>
Signed-off-by: Geng Jianfeng <[email protected]>
Signed-off-by: Zang Leigang <[email protected]>
Signed-off-by: Yu Jianfeng <[email protected]>
---
drivers/scsi/ufs/Kconfig | 9 +
drivers/scsi/ufs/Makefile | 1 +
drivers/scsi/ufs/ufs-hisi.c | 624 ++++++++++++++++++++++++++++++++++++++++++++
drivers/scsi/ufs/ufs-hisi.h | 122 +++++++++
4 files changed, 756 insertions(+)
create mode 100644 drivers/scsi/ufs/ufs-hisi.c
create mode 100644 drivers/scsi/ufs/ufs-hisi.h
diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index e27b4d4e6ae2..e09fe6ab3572 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -100,3 +100,12 @@ config SCSI_UFS_QCOM
Select this if you have UFS controller on QCOM chipset.
If unsure, say N.
+
+config SCSI_UFS_HISI
+ tristate "Hisilicon specific hooks to UFS controller platform driver"
+ depends on (ARCH_HISI || COMPILE_TEST) && SCSI_UFSHCD_PLATFORM
+ ---help---
+ This selects the Hisilicon specific additions to UFSHCD platform driver.
+
+ Select this if you have UFS controller on Hisilicon chipset.
+ If unsure, say N.
diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
index 9310c6c83041..e1ebf1031437 100644
--- a/drivers/scsi/ufs/Makefile
+++ b/drivers/scsi/ufs/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_SCSI_UFS_QCOM) += ufs-qcom.o
obj-$(CONFIG_SCSI_UFSHCD) += ufshcd.o
obj-$(CONFIG_SCSI_UFSHCD_PCI) += ufshcd-pci.o
obj-$(CONFIG_SCSI_UFSHCD_PLATFORM) += ufshcd-pltfrm.o
+obj-$(CONFIG_SCSI_UFS_HISI) += ufs-hisi.o
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
new file mode 100644
index 000000000000..0c9551b3bfb2
--- /dev/null
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -0,0 +1,624 @@
+/*
+ *
+ * HiSilicon Hixxxx UFS Driver
+ *
+ * Copyright (c) 2016-2017 Linaro Ltd.
+ * Copyright (c) 2016-2017 HiSilicon Technologies Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/time.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include "ufshcd.h"
+#include "ufshcd-pltfrm.h"
+#include "unipro.h"
+#include "ufs-hisi.h"
+#include "ufshci.h"
+
+static int ufs_hisi_check_hibern8(struct ufs_hba *hba)
+{
+ int err = 0;
+ u32 tx_fsm_val_0 = 0;
+ u32 tx_fsm_val_1 = 0;
+ unsigned long timeout = jiffies + msecs_to_jiffies(HBRN8_POLL_TOUT_MS);
+
+ do {
+ err = ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(MPHY_TX_FSM_STATE, 0),
+ &tx_fsm_val_0);
+ err |= ufshcd_dme_get(hba,
+ UIC_ARG_MIB_SEL(MPHY_TX_FSM_STATE, 1), &tx_fsm_val_1);
+ if (err || (tx_fsm_val_0 == TX_FSM_HIBERN8 &&
+ tx_fsm_val_1 == TX_FSM_HIBERN8))
+ break;
+
+ /* sleep for max. 200us */
+ usleep_range(100, 200);
+ } while (time_before(jiffies, timeout));
+
+ /*
+ * we might have scheduled out for long during polling so
+ * check the state again.
+ */
+ if (time_after(jiffies, timeout)) {
+ err = ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(MPHY_TX_FSM_STATE, 0),
+ &tx_fsm_val_0);
+ err |= ufshcd_dme_get(hba,
+ UIC_ARG_MIB_SEL(MPHY_TX_FSM_STATE, 1), &tx_fsm_val_1);
+ }
+
+ if (err) {
+ dev_err(hba->dev, "%s: unable to get TX_FSM_STATE, err %d\n",
+ __func__, err);
+ } else if (tx_fsm_val_0 != TX_FSM_HIBERN8 ||
+ tx_fsm_val_1 != TX_FSM_HIBERN8) {
+ err = -1;
+ dev_err(hba->dev, "%s: invalid TX_FSM_STATE, lane0 = %d, lane1 = %d\n",
+ __func__, tx_fsm_val_0, tx_fsm_val_1);
+ }
+
+ return err;
+}
+
+static void ufs_hi3660_clk_init(struct ufs_hba *hba)
+{
+ struct ufs_hisi_host *host = ufshcd_get_variant(hba);
+
+ ufs_sys_ctrl_clr_bits(host, BIT_SYSCTRL_REF_CLOCK_EN, PHY_CLK_CTRL);
+ if (ufs_sys_ctrl_readl(host, PHY_CLK_CTRL) & BIT_SYSCTRL_REF_CLOCK_EN)
+ mdelay(1);
+ /* use abb clk */
+ ufs_sys_ctrl_clr_bits(host, BIT_UFS_REFCLK_SRC_SEl, UFS_SYSCTRL);
+ ufs_sys_ctrl_clr_bits(host, BIT_UFS_REFCLK_ISO_EN, PHY_ISO_EN);
+ /* open mphy ref clk */
+ ufs_sys_ctrl_set_bits(host, BIT_SYSCTRL_REF_CLOCK_EN, PHY_CLK_CTRL);
+}
+
+static void ufs_hi3660_soc_init(struct ufs_hba *hba)
+{
+ struct ufs_hisi_host *host = ufshcd_get_variant(hba);
+ u32 reg;
+
+ if (!IS_ERR(host->rst))
+ reset_control_assert(host->rst);
+
+ /* HC_PSW powerup */
+ ufs_sys_ctrl_set_bits(host, BIT_UFS_PSW_MTCMOS_EN, PSW_POWER_CTRL);
+ udelay(10);
+ /* notify PWR ready */
+ ufs_sys_ctrl_set_bits(host, BIT_SYSCTRL_PWR_READY, HC_LP_CTRL);
+ ufs_sys_ctrl_writel(host, MASK_UFS_DEVICE_RESET | 0,
+ UFS_DEVICE_RESET_CTRL);
+
+ reg = ufs_sys_ctrl_readl(host, PHY_CLK_CTRL);
+ reg = (reg & ~MASK_SYSCTRL_CFG_CLOCK_FREQ) | UFS_FREQ_CFG_CLK;
+ /* set cfg clk freq */
+ ufs_sys_ctrl_writel(host, reg, PHY_CLK_CTRL);
+ /* set ref clk freq */
+ ufs_sys_ctrl_clr_bits(host, MASK_SYSCTRL_REF_CLOCK_SEL, PHY_CLK_CTRL);
+ /* bypass ufs clk gate */
+ ufs_sys_ctrl_set_bits(host, MASK_UFS_CLK_GATE_BYPASS,
+ CLOCK_GATE_BYPASS);
+ ufs_sys_ctrl_set_bits(host, MASK_UFS_SYSCRTL_BYPASS, UFS_SYSCTRL);
+
+ /* open psw clk */
+ ufs_sys_ctrl_set_bits(host, BIT_SYSCTRL_PSW_CLK_EN, PSW_CLK_CTRL);
+ /* disable ufshc iso */
+ ufs_sys_ctrl_clr_bits(host, BIT_UFS_PSW_ISO_CTRL, PSW_POWER_CTRL);
+ /* disable phy iso */
+ ufs_sys_ctrl_clr_bits(host, BIT_UFS_PHY_ISO_CTRL, PHY_ISO_EN);
+ /* notice iso disable */
+ ufs_sys_ctrl_clr_bits(host, BIT_SYSCTRL_LP_ISOL_EN, HC_LP_CTRL);
+
+ if (!IS_ERR(host->assert))
+ reset_control_deassert(host->assert);
+
+ /* disable lp_reset_n */
+ ufs_sys_ctrl_set_bits(host, BIT_SYSCTRL_LP_RESET_N, RESET_CTRL_EN);
+ mdelay(1);
+
+ ufs_sys_ctrl_writel(host, MASK_UFS_DEVICE_RESET | BIT_UFS_DEVICE_RESET,
+ UFS_DEVICE_RESET_CTRL);
+
+ msleep(20);
+
+ /*
+ * enable the fix of linereset recovery,
+ * and enable rx_reset/tx_rest beat
+ * enable ref_clk_en override(bit5) &
+ * override value = 1(bit4), with mask
+ */
+ ufs_sys_ctrl_writel(host, 0x03300330, UFS_DEVICE_RESET_CTRL);
+
+ if (!IS_ERR(host->rst))
+ reset_control_deassert(host->rst);
+}
+
+static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba)
+{
+ int err;
+ uint32_t value;
+ uint32_t reg;
+
+ /* Unipro VS_mphy_disable */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD0C1, 0x0), 0x1);
+ /* PA_HSSeries */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x156A, 0x0), 0x2);
+ /* MPHY CBRATESEL */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8114, 0x0), 0x1);
+ /* MPHY CBOVRCTRL2 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8121, 0x0), 0x2D);
+ /* MPHY CBOVRCTRL3 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8122, 0x0), 0x1);
+ /* Unipro VS_MphyCfgUpdt */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD085, 0x0), 0x1);
+ /* MPHY RXOVRCTRL4 rx0 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x800D, 0x4), 0x58);
+ /* MPHY RXOVRCTRL4 rx1 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x800D, 0x5), 0x58);
+ /* MPHY RXOVRCTRL5 rx0 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x800E, 0x4), 0xB);
+ /* MPHY RXOVRCTRL5 rx1 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x800E, 0x5), 0xB);
+ /* MPHY RXSQCONTROL rx0 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8009, 0x4), 0x1);
+ /* MPHY RXSQCONTROL rx1 */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8009, 0x5), 0x1);
+ /* Unipro VS_MphyCfgUpdt */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD085, 0x0), 0x1);
+
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8113, 0x0), 0x1);
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD085, 0x0), 0x1);
+
+ /* Tactive RX */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008F, 0x4), 0x7);
+ /* Tactive RX */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008F, 0x5), 0x7);
+
+ /* Gear3 Synclength */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0095, 0x4), 0x4F);
+ /* Gear3 Synclength */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0095, 0x5), 0x4F);
+ /* Gear2 Synclength */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0094, 0x4), 0x4F);
+ /* Gear2 Synclength */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0094, 0x5), 0x4F);
+ /* Gear1 Synclength */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008B, 0x4), 0x4F);
+ /* Gear1 Synclength */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008B, 0x5), 0x4F);
+ /* Thibernate Tx */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x000F, 0x0), 0x5);
+ /* Thibernate Tx */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x000F, 0x1), 0x5);
+
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD085, 0x0), 0x1);
+ /* Unipro VS_mphy_disable */
+ ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(0xD0C1, 0x0), &value);
+ if (value != 0x1)
+ dev_info(hba->dev,
+ "Warring!!! Unipro VS_mphy_disable is 0x%x\n", value);
+
+ /* Unipro VS_mphy_disable */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD0C1, 0x0), 0x0);
+ err = ufs_hisi_check_hibern8(hba);
+ if (err)
+ dev_err(hba->dev, "ufs_hisi_check_hibern8 error\n");
+
+ ufshcd_writel(hba, UFS_HCLKDIV_NORMAL_VALUE, UFS_REG_HCLKDIV);
+
+ /* disable auto H8 */
+ reg = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER);
+ reg = reg & (~UFS_AHIT_AH8ITV_MASK);
+ ufshcd_writel(hba, reg, REG_AUTO_HIBERNATE_IDLE_TIMER);
+
+ /* Unipro PA_Local_TX_LCC_Enable */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x155E, 0x0), 0x0);
+ /* close Unipro VS_Mk2ExtnSupport */
+ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), 0x0);
+ ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), &value);
+ if (value != 0) {
+ /* Ensure close success */
+ dev_info(hba->dev, "WARN: close VS_Mk2ExtnSupport failed\n");
+ }
+
+ return err;
+}
+
+static int ufs_hisi_link_startup_post_change(struct ufs_hba *hba)
+{
+ struct ufs_hisi_host *host = ufshcd_get_variant(hba);
+
+ /* Unipro DL_AFC0CreditThreshold */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x2044), 0x0);
+ /* Unipro DL_TC0OutAckThreshold */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x2045), 0x0);
+ /* Unipro DL_TC0TXFCThreshold */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x2040), 0x9);
+
+ /* not bypass ufs clk gate */
+ ufs_sys_ctrl_clr_bits(host, MASK_UFS_CLK_GATE_BYPASS,
+ CLOCK_GATE_BYPASS);
+ ufs_sys_ctrl_clr_bits(host, MASK_UFS_SYSCRTL_BYPASS,
+ UFS_SYSCTRL);
+
+ /* select received symbol cnt */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd09a), 0x80000000);
+ /* reset counter0 and enable */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd09c), 0x00000005);
+
+ return 0;
+}
+
+static int ufs_hi3660_link_startup_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status)
+{
+ int err = 0;
+
+ switch (status) {
+ case PRE_CHANGE:
+ err = ufs_hisi_link_startup_pre_change(hba);
+ break;
+ case POST_CHANGE:
+ err = ufs_hisi_link_startup_post_change(hba);
+ break;
+ default:
+ break;
+ }
+
+ return err;
+}
+
+struct ufs_hisi_dev_params {
+ u32 pwm_rx_gear; /* pwm rx gear to work in */
+ u32 pwm_tx_gear; /* pwm tx gear to work in */
+ u32 hs_rx_gear; /* hs rx gear to work in */
+ u32 hs_tx_gear; /* hs tx gear to work in */
+ u32 rx_lanes; /* number of rx lanes */
+ u32 tx_lanes; /* number of tx lanes */
+ u32 rx_pwr_pwm; /* rx pwm working pwr */
+ u32 tx_pwr_pwm; /* tx pwm working pwr */
+ u32 rx_pwr_hs; /* rx hs working pwr */
+ u32 tx_pwr_hs; /* tx hs working pwr */
+ u32 hs_rate; /* rate A/B to work in HS */
+ u32 desired_working_mode;
+};
+
+static int ufs_hisi_get_pwr_dev_param(
+ struct ufs_hisi_dev_params *hisi_param,
+ struct ufs_pa_layer_attr *dev_max,
+ struct ufs_pa_layer_attr *agreed_pwr)
+{
+ int min_hisi_gear;
+ int min_dev_gear;
+ bool is_dev_sup_hs = false;
+ bool is_hisi_max_hs = false;
+
+ if (dev_max->pwr_rx == FASTAUTO_MODE || dev_max->pwr_rx == FAST_MODE)
+ is_dev_sup_hs = true;
+
+ if (hisi_param->desired_working_mode == FAST) {
+ is_hisi_max_hs = true;
+ min_hisi_gear = min_t(u32, hisi_param->hs_rx_gear,
+ hisi_param->hs_tx_gear);
+ } else {
+ min_hisi_gear = min_t(u32, hisi_param->pwm_rx_gear,
+ hisi_param->pwm_tx_gear);
+ }
+
+ /*
+ * device doesn't support HS but
+ * hisi_param->desired_working_mode is HS,
+ * thus device and hisi_param don't agree
+ */
+ if (!is_dev_sup_hs && is_hisi_max_hs) {
+ pr_err("%s: device not support HS\n", __func__);
+ return -ENOTSUPP;
+ } else if (is_dev_sup_hs && is_hisi_max_hs) {
+ /*
+ * since device supports HS, it supports FAST_MODE.
+ * since hisi_param->desired_working_mode is also HS
+ * then final decision (FAST/FASTAUTO) is done according
+ * to hisi_params as it is the restricting factor
+ */
+ agreed_pwr->pwr_rx = agreed_pwr->pwr_tx =
+ hisi_param->rx_pwr_hs;
+ } else {
+ /*
+ * here hisi_param->desired_working_mode is PWM.
+ * it doesn't matter whether device supports HS or PWM,
+ * in both cases hisi_param->desired_working_mode will
+ * determine the mode
+ */
+ agreed_pwr->pwr_rx = agreed_pwr->pwr_tx =
+ hisi_param->rx_pwr_pwm;
+ }
+
+ /*
+ * we would like tx to work in the minimum number of lanes
+ * between device capability and vendor preferences.
+ * the same decision will be made for rx
+ */
+ agreed_pwr->lane_tx =
+ min_t(u32, dev_max->lane_tx, hisi_param->tx_lanes);
+ agreed_pwr->lane_rx =
+ min_t(u32, dev_max->lane_rx, hisi_param->rx_lanes);
+
+ /* device maximum gear is the minimum between device rx and tx gears */
+ min_dev_gear = min_t(u32, dev_max->gear_rx, dev_max->gear_tx);
+
+ /*
+ * if both device capabilities and vendor pre-defined preferences are
+ * both HS or both PWM then set the minimum gear to be the chosen
+ * working gear.
+ * if one is PWM and one is HS then the one that is PWM get to decide
+ * what is the gear, as it is the one that also decided previously what
+ * pwr the device will be configured to.
+ */
+ if ((is_dev_sup_hs && is_hisi_max_hs) ||
+ (!is_dev_sup_hs && !is_hisi_max_hs))
+ agreed_pwr->gear_rx = agreed_pwr->gear_tx =
+ min_t(u32, min_dev_gear, min_hisi_gear);
+ else
+ agreed_pwr->gear_rx = agreed_pwr->gear_tx = min_hisi_gear;
+
+ agreed_pwr->hs_rate = hisi_param->hs_rate;
+
+ pr_info("ufs final power mode: gear = %d, lane = %d, pwr = %d, rate = %d\n",
+ agreed_pwr->gear_rx, agreed_pwr->lane_rx, agreed_pwr->pwr_rx,
+ agreed_pwr->hs_rate);
+ return 0;
+}
+
+static void ufs_hisi_set_dev_cap(struct ufs_hisi_dev_params *hisi_param)
+{
+ hisi_param->rx_lanes = UFS_HISI_LIMIT_NUM_LANES_RX;
+ hisi_param->tx_lanes = UFS_HISI_LIMIT_NUM_LANES_TX;
+ hisi_param->hs_rx_gear = UFS_HISI_LIMIT_HSGEAR_RX;
+ hisi_param->hs_tx_gear = UFS_HISI_LIMIT_HSGEAR_TX;
+ hisi_param->pwm_rx_gear = UFS_HISI_LIMIT_PWMGEAR_RX;
+ hisi_param->pwm_tx_gear = UFS_HISI_LIMIT_PWMGEAR_TX;
+ hisi_param->rx_pwr_pwm = UFS_HISI_LIMIT_RX_PWR_PWM;
+ hisi_param->tx_pwr_pwm = UFS_HISI_LIMIT_TX_PWR_PWM;
+ hisi_param->rx_pwr_hs = UFS_HISI_LIMIT_RX_PWR_HS;
+ hisi_param->tx_pwr_hs = UFS_HISI_LIMIT_TX_PWR_HS;
+ hisi_param->hs_rate = UFS_HISI_LIMIT_HS_RATE;
+ hisi_param->desired_working_mode = UFS_HISI_LIMIT_DESIRED_MODE;
+}
+
+static void ufs_hisi_pwr_change_pre_change(struct ufs_hba *hba)
+{
+ /* update */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15A8), 0x1);
+ /* PA_TxSkip */
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x155c), 0x0);
+ /*PA_PWRModeUserData0 = 8191, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15b0), 8191);
+ /*PA_PWRModeUserData1 = 65535, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15b1), 65535);
+ /*PA_PWRModeUserData2 = 32767, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15b2), 32767);
+ /*DME_FC0ProtectionTimeOutVal = 8191, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd041), 8191);
+ /*DME_TC0ReplayTimeOutVal = 65535, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd042), 65535);
+ /*DME_AFC0ReqTimeOutVal = 32767, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd043), 32767);
+ /*PA_PWRModeUserData3 = 8191, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15b3), 8191);
+ /*PA_PWRModeUserData4 = 65535, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15b4), 65535);
+ /*PA_PWRModeUserData5 = 32767, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0x15b5), 32767);
+ /*DME_FC1ProtectionTimeOutVal = 8191, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd044), 8191);
+ /*DME_TC1ReplayTimeOutVal = 65535, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd045), 65535);
+ /*DME_AFC1ReqTimeOutVal = 32767, default is 0*/
+ ufshcd_dme_set(hba, UIC_ARG_MIB(0xd046), 32767);
+}
+
+static int ufs_hi3660_pwr_change_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status,
+ struct ufs_pa_layer_attr *dev_max_params,
+ struct ufs_pa_layer_attr *dev_req_params)
+{
+ struct ufs_hisi_dev_params ufs_hisi_cap;
+ int ret = 0;
+
+ if (!dev_req_params) {
+ dev_err(hba->dev,
+ "%s: incoming dev_req_params is NULL\n", __func__);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (status) {
+ case PRE_CHANGE:
+ ufs_hisi_set_dev_cap(&ufs_hisi_cap);
+ ret = ufs_hisi_get_pwr_dev_param(
+ &ufs_hisi_cap, dev_max_params, dev_req_params);
+ if (ret) {
+ dev_err(hba->dev,
+ "%s: failed to determine capabilities\n", __func__);
+ goto out;
+ }
+
+ ufs_hisi_pwr_change_pre_change(hba);
+ break;
+ case POST_CHANGE:
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+out:
+ return ret;
+}
+
+static int ufs_hisi_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+{
+ struct ufs_hisi_host *host = ufshcd_get_variant(hba);
+
+ if (ufshcd_is_runtime_pm(pm_op))
+ return 0;
+
+ if (host->in_suspend) {
+ WARN_ON(1);
+ return 0;
+ }
+
+ ufs_sys_ctrl_clr_bits(host, BIT_SYSCTRL_REF_CLOCK_EN, PHY_CLK_CTRL);
+ udelay(10);
+ /* set ref_dig_clk override of PHY PCS to 0 */
+ ufs_sys_ctrl_writel(host, 0x00100000, UFS_DEVICE_RESET_CTRL);
+
+ host->in_suspend = true;
+
+ return 0;
+}
+
+static int ufs_hisi_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+{
+ struct ufs_hisi_host *host = ufshcd_get_variant(hba);
+
+ if (!host->in_suspend)
+ return 0;
+
+ /* set ref_dig_clk override of PHY PCS to 1 */
+ ufs_sys_ctrl_writel(host, 0x00100010, UFS_DEVICE_RESET_CTRL);
+ udelay(10);
+ ufs_sys_ctrl_set_bits(host, BIT_SYSCTRL_REF_CLOCK_EN, PHY_CLK_CTRL);
+
+ host->in_suspend = false;
+ return 0;
+}
+
+static int ufs_hisi_get_resource(struct ufs_hisi_host *host)
+{
+ struct resource *mem_res;
+ struct device *dev = host->hba->dev;
+ struct platform_device *pdev = to_platform_device(dev);
+
+ /* get resource of ufs sys ctrl */
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ host->ufs_sys_ctrl = devm_ioremap_resource(dev, mem_res);
+ if (IS_ERR(host->ufs_sys_ctrl))
+ return PTR_ERR(host->ufs_sys_ctrl);
+
+ return 0;
+}
+
+static void ufs_hisi_set_pm_lvl(struct ufs_hba *hba)
+{
+ hba->rpm_lvl = UFS_PM_LVL_1;
+ hba->spm_lvl = UFS_PM_LVL_3;
+}
+
+/**
+ * ufs_hisi_init_common
+ * @hba: host controller instance
+ */
+static int ufs_hisi_init_common(struct ufs_hba *hba)
+{
+ int err = 0;
+ struct device *dev = hba->dev;
+ struct ufs_hisi_host *host;
+
+ host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
+ if (!host)
+ return -ENOMEM;
+
+ host->hba = hba;
+ ufshcd_set_variant(hba, host);
+
+ host->rst = devm_reset_control_get(dev, "rst");
+ host->assert = devm_reset_control_get(dev, "assert");
+
+ ufs_hisi_set_pm_lvl(hba);
+
+ err = ufs_hisi_get_resource(host);
+ if (err) {
+ ufshcd_set_variant(hba, NULL);
+ return err;
+ }
+
+ return 0;
+}
+
+static int ufs_hi3660_init(struct ufs_hba *hba)
+{
+ int ret = 0;
+ struct device *dev = hba->dev;
+
+ ret = ufs_hisi_init_common(hba);
+ if (ret) {
+ dev_err(dev, "%s: ufs common init fail\n", __func__);
+ return ret;
+ }
+
+ ufs_hi3660_clk_init(hba);
+
+ ufs_hi3660_soc_init(hba);
+
+ return 0;
+}
+
+static struct ufs_hba_variant_ops ufs_hba_hisi_vops = {
+ .name = "hi3660",
+ .init = ufs_hi3660_init,
+ .link_startup_notify = ufs_hi3660_link_startup_notify,
+ .pwr_change_notify = ufs_hi3660_pwr_change_notify,
+ .suspend = ufs_hisi_suspend,
+ .resume = ufs_hisi_resume,
+};
+
+static int ufs_hisi_probe(struct platform_device *pdev)
+{
+ return ufshcd_pltfrm_init(pdev, &ufs_hba_hisi_vops);
+}
+
+static int ufs_hisi_remove(struct platform_device *pdev)
+{
+ struct ufs_hba *hba = platform_get_drvdata(pdev);
+
+ ufshcd_remove(hba);
+ return 0;
+}
+
+static const struct of_device_id ufs_hisi_of_match[] = {
+ { .compatible = "hisilicon,hi3660-ufs" },
+ {},
+};
+
+static const struct dev_pm_ops ufs_hisi_pm_ops = {
+ .suspend = ufshcd_pltfrm_suspend,
+ .resume = ufshcd_pltfrm_resume,
+ .runtime_suspend = ufshcd_pltfrm_runtime_suspend,
+ .runtime_resume = ufshcd_pltfrm_runtime_resume,
+ .runtime_idle = ufshcd_pltfrm_runtime_idle,
+};
+
+static struct platform_driver ufs_hisi_pltform = {
+ .probe = ufs_hisi_probe,
+ .remove = ufs_hisi_remove,
+ .shutdown = ufshcd_pltfrm_shutdown,
+ .driver = {
+ .name = "ufshcd-hisi",
+ .pm = &ufs_hisi_pm_ops,
+ .of_match_table = of_match_ptr(ufs_hisi_of_match),
+ },
+};
+module_platform_driver(ufs_hisi_pltform);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ufshcd-hisi");
+MODULE_DESCRIPTION("HiSilicon Hixxxx UFS Driver");
diff --git a/drivers/scsi/ufs/ufs-hisi.h b/drivers/scsi/ufs/ufs-hisi.h
new file mode 100644
index 000000000000..0b8a2e06b9bc
--- /dev/null
+++ b/drivers/scsi/ufs/ufs-hisi.h
@@ -0,0 +1,122 @@
+/* Copyright (c) 2017, HiSilicon. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef UFS_HISI_H_
+#define UFS_HISI_H_
+
+#define HBRN8_POLL_TOUT_MS 1000
+
+/*
+ * ufs sysctrl specific define
+ */
+#define PSW_POWER_CTRL (0x04)
+#define PHY_ISO_EN (0x08)
+#define HC_LP_CTRL (0x0C)
+#define PHY_CLK_CTRL (0x10)
+#define PSW_CLK_CTRL (0x14)
+#define CLOCK_GATE_BYPASS (0x18)
+#define RESET_CTRL_EN (0x1C)
+#define UFS_SYSCTRL (0x5C)
+#define UFS_DEVICE_RESET_CTRL (0x60)
+
+#define BIT_UFS_PSW_ISO_CTRL (1 << 16)
+#define BIT_UFS_PSW_MTCMOS_EN (1 << 0)
+#define BIT_UFS_REFCLK_ISO_EN (1 << 16)
+#define BIT_UFS_PHY_ISO_CTRL (1 << 0)
+#define BIT_SYSCTRL_LP_ISOL_EN (1 << 16)
+#define BIT_SYSCTRL_PWR_READY (1 << 8)
+#define BIT_SYSCTRL_REF_CLOCK_EN (1 << 24)
+#define MASK_SYSCTRL_REF_CLOCK_SEL (0x3 << 8)
+#define MASK_SYSCTRL_CFG_CLOCK_FREQ (0xFF)
+#define UFS_FREQ_CFG_CLK (0x39)
+#define BIT_SYSCTRL_PSW_CLK_EN (1 << 4)
+#define MASK_UFS_CLK_GATE_BYPASS (0x3F)
+#define BIT_SYSCTRL_LP_RESET_N (1 << 0)
+#define BIT_UFS_REFCLK_SRC_SEl (1 << 0)
+#define MASK_UFS_SYSCRTL_BYPASS (0x3F << 16)
+#define MASK_UFS_DEVICE_RESET (0x1 << 16)
+#define BIT_UFS_DEVICE_RESET (0x1)
+
+/*
+ * M-TX Configuration Attributes for Hixxxx
+ */
+#define MPHY_TX_FSM_STATE 0x41
+#define TX_FSM_HIBERN8 0x1
+
+/*
+ * Hixxxx UFS HC specific Registers
+ */
+enum {
+ UFS_REG_OCPTHRTL = 0xc0,
+ UFS_REG_OOCPR = 0xc4,
+
+ UFS_REG_CDACFG = 0xd0,
+ UFS_REG_CDATX1 = 0xd4,
+ UFS_REG_CDATX2 = 0xd8,
+ UFS_REG_CDARX1 = 0xdc,
+ UFS_REG_CDARX2 = 0xe0,
+ UFS_REG_CDASTA = 0xe4,
+
+ UFS_REG_LBMCFG = 0xf0,
+ UFS_REG_LBMSTA = 0xf4,
+ UFS_REG_UFSMODE = 0xf8,
+
+ UFS_REG_HCLKDIV = 0xfc,
+};
+
+/* AHIT - Auto-Hibernate Idle Timer */
+#define UFS_AHIT_AH8ITV_MASK 0x3FF
+
+/* REG UFS_REG_OCPTHRTL definition */
+#define UFS_HCLKDIV_NORMAL_VALUE 0xE4
+
+/* vendor specific pre-defined parameters */
+#define SLOW 1
+#define FAST 2
+
+#define UFS_HISI_LIMIT_NUM_LANES_RX 2
+#define UFS_HISI_LIMIT_NUM_LANES_TX 2
+#define UFS_HISI_LIMIT_HSGEAR_RX UFS_HS_G3
+#define UFS_HISI_LIMIT_HSGEAR_TX UFS_HS_G3
+#define UFS_HISI_LIMIT_PWMGEAR_RX UFS_PWM_G4
+#define UFS_HISI_LIMIT_PWMGEAR_TX UFS_PWM_G4
+#define UFS_HISI_LIMIT_RX_PWR_PWM SLOW_MODE
+#define UFS_HISI_LIMIT_TX_PWR_PWM SLOW_MODE
+#define UFS_HISI_LIMIT_RX_PWR_HS FAST_MODE
+#define UFS_HISI_LIMIT_TX_PWR_HS FAST_MODE
+#define UFS_HISI_LIMIT_HS_RATE PA_HS_MODE_B
+#define UFS_HISI_LIMIT_DESIRED_MODE FAST
+
+struct ufs_hisi_host {
+ struct ufs_hba *hba;
+ void __iomem *ufs_sys_ctrl;
+
+ struct reset_control *rst;
+ struct reset_control *assert;
+
+ uint64_t caps;
+
+ bool in_suspend;
+};
+
+#define ufs_sys_ctrl_writel(host, val, reg) \
+ writel((val), (host)->ufs_sys_ctrl + (reg))
+#define ufs_sys_ctrl_readl(host, reg) readl((host)->ufs_sys_ctrl + (reg))
+#define ufs_sys_ctrl_set_bits(host, mask, reg) \
+ ufs_sys_ctrl_writel( \
+ (host), ((mask) | (ufs_sys_ctrl_readl((host), (reg)))), (reg))
+#define ufs_sys_ctrl_clr_bits(host, mask, reg) \
+ ufs_sys_ctrl_writel((host), \
+ ((~(mask)) & (ufs_sys_ctrl_readl((host), (reg)))), \
+ (reg))
+#endif /* UFS_HISI_H_ */
--
2.15.0
Partitions in HiKey960 are formatted as f2fs and squashfs.
f2fs is for userdata; squashfs is for system. Both partitions are required
by Android.
Signed-off-by: Li Wei <[email protected]>
Signed-off-by: Zhangfei Gao <[email protected]>
Signed-off-by: Guodong Xu <[email protected]>
---
arch/arm64/configs/defconfig | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index fa6f921eed86..7be4ee2ac680 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -572,6 +572,7 @@ CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
+CONFIG_F2FS_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
@@ -587,6 +588,13 @@ CONFIG_HUGETLBFS=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_FILE_DIRECT=y
+CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZ4=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_NFS_V4_1=y
--
2.15.0
This enable configs for Hisilicon Hixxxx UFS driver.
Signed-off-by: Li Wei <[email protected]>
Signed-off-by: Zhangfei Gao <[email protected]>
Signed-off-by: Guodong Xu <[email protected]>
---
arch/arm64/configs/defconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 6356c6da34ea..fa6f921eed86 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -174,6 +174,9 @@ CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_HISI_SAS=y
CONFIG_SCSI_HISI_SAS_PCI=y
+CONFIG_SCSI_UFSHCD=y
+CONFIG_SCSI_UFSHCD_PLATFORM=y
+CONFIG_SCSI_UFS_HISI=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
--
2.15.0
add ufs node document for Hisilicon.
Signed-off-by: Li Wei <[email protected]>
---
Documentation/devicetree/bindings/ufs/ufs-hisi.txt | 38 ++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 Documentation/devicetree/bindings/ufs/ufs-hisi.txt
diff --git a/Documentation/devicetree/bindings/ufs/ufs-hisi.txt b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt
new file mode 100644
index 000000000000..73e10698960e
--- /dev/null
+++ b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt
@@ -0,0 +1,38 @@
+* Hisilicon Universal Flash Storage (UFS) Host Controller
+
+UFS nodes are defined to describe on-chip UFS hardware macro.
+Each UFS Host Controller should have its own node.
+
+Required properties:
+- compatible : compatible list, contains one of the following -
+ "hisilicon,hi3660-ufs", "jedec,ufs-1.1" for hisi ufs
+ host controller present on Hi36xx chipset.
+- reg : should contain UFS register address space & UFS SYS CTRL register address,
+- interrupt-parent : interrupt device
+- interrupts : interrupt number
+- clocks : List of phandle and clock specifier pairs
+- clock-names : List of clock input name strings sorted in the same
+ order as the clocks property. "ref_clk", "phy_clk" is optional
+- resets : reset node register, one reset the clk and the other reset the controller
+- reset-names : describe reset node register
+
+Example:
+
+ ufs: ufs@ff3b0000 {
+ compatible = "hisilicon,hi3660-ufs", "jedec,ufs-1.1";
+ /* 0: HCI standard */
+ /* 1: UFS SYS CTRL */
+ reg = <0x0 0xff3b0000 0x0 0x1000>,
+ <0x0 0xff3b1000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_UFSIO_REF>,
+ <&crg_ctrl HI3660_CLK_GATE_UFSPHY_CFG>;
+ clock-names = "ref_clk", "phy_clk";
+ freq-table-hz = <0 0>, <0 0>;
+ /* offset: 0x84; bit: 12 */
+ /* offset: 0x84; bit: 7 */
+ resets = <&crg_rst 0x84 12>,
+ <&crg_rst 0x84 7>;
+ reset-names = "rst", "assert";
+ };
--
2.15.0
Dear Li,
On Thu, Dec 7, 2017 at 11:20 AM, Li Wei <[email protected]> wrote:
> add Hisilicon ufs driver code.
>
> Signed-off-by: Li Wei <[email protected]>
> Signed-off-by: Geng Jianfeng <[email protected]>
> Signed-off-by: Zang Leigang <[email protected]>
> Signed-off-by: Yu Jianfeng <[email protected]>
[]
> --- /dev/null
> +++ b/drivers/scsi/ufs/ufs-hisi.c
> @@ -0,0 +1,624 @@
> +/*
> + *
> + * HiSilicon Hixxxx UFS Driver
> + *
> + * Copyright (c) 2016-2017 Linaro Ltd.
> + * Copyright (c) 2016-2017 HiSilicon Technologies Co., Ltd.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
Would you consider using the new SPDX license ids instead?
Check Thomas doc patches for instructions.
This would be great and while you are it may be this could be adopted
for all HiSilicon and Huawei past, present and future contributions?
Thank you for your kind consideration!
--
Cordially
Philippe Ombredanne
On Thu, Dec 07, 2017 at 06:20:23PM +0800, Li Wei wrote:
> add ufs node document for Hisilicon.
>
> Signed-off-by: Li Wei <[email protected]>
> ---
Version history?
> Documentation/devicetree/bindings/ufs/ufs-hisi.txt | 38 ++++++++++++++++++++++
> 1 file changed, 38 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/ufs/ufs-hisi.txt
>
> diff --git a/Documentation/devicetree/bindings/ufs/ufs-hisi.txt b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt
> new file mode 100644
> index 000000000000..73e10698960e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ufs/ufs-hisi.txt
> @@ -0,0 +1,38 @@
> +* Hisilicon Universal Flash Storage (UFS) Host Controller
> +
> +UFS nodes are defined to describe on-chip UFS hardware macro.
> +Each UFS Host Controller should have its own node.
> +
> +Required properties:
> +- compatible : compatible list, contains one of the following -
> + "hisilicon,hi3660-ufs", "jedec,ufs-1.1" for hisi ufs
> + host controller present on Hi36xx chipset.
> +- reg : should contain UFS register address space & UFS SYS CTRL register address,
> +- interrupt-parent : interrupt device
> +- interrupts : interrupt number
> +- clocks : List of phandle and clock specifier pairs
> +- clock-names : List of clock input name strings sorted in the same
> + order as the clocks property. "ref_clk", "phy_clk" is optional
> +- resets : reset node register, one reset the clk and the other reset the controller
> +- reset-names : describe reset node register
> +
> +Example:
> +
> + ufs: ufs@ff3b0000 {
> + compatible = "hisilicon,hi3660-ufs", "jedec,ufs-1.1";
> + /* 0: HCI standard */
> + /* 1: UFS SYS CTRL */
> + reg = <0x0 0xff3b0000 0x0 0x1000>,
> + <0x0 0xff3b1000 0x0 0x1000>;
> + interrupt-parent = <&gic>;
> + interrupts = <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&crg_ctrl HI3660_CLK_GATE_UFSIO_REF>,
> + <&crg_ctrl HI3660_CLK_GATE_UFSPHY_CFG>;
> + clock-names = "ref_clk", "phy_clk";
> + freq-table-hz = <0 0>, <0 0>;
? Not documented.
> + /* offset: 0x84; bit: 12 */
> + /* offset: 0x84; bit: 7 */
> + resets = <&crg_rst 0x84 12>,
> + <&crg_rst 0x84 7>;
> + reset-names = "rst", "assert";
> + };
> --
> 2.15.0
>
Hi,Philippe,
Thank you for your suggestion, and I'll consider that next patch.
-----邮件原件-----
发件人: Philippe Ombredanne [mailto:[email protected]]
发送时间: 2017年12月7日 18:34
收件人: liwei (CM)
抄送: Rob Herring; Mark Rutland; xuwei (O); Catalin Marinas; Will Deacon; [email protected]; James E.J. Bottomley; Martin K. Petersen; [email protected]; Arnd Bergmann; [email protected]; Thomas Petazzoni; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS; LKML; moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE; [email protected]; zangleigang; Gengjianfeng; [email protected]; [email protected]; Fengbaopeng (kevin, Kirin Solution Dept)
主题: Re: [PATCH v6 1/5] scsi: ufs: add Hisilicon ufs driver code
Dear Li,
On Thu, Dec 7, 2017 at 11:20 AM, Li Wei <[email protected]> wrote:
> add Hisilicon ufs driver code.
>
> Signed-off-by: Li Wei <[email protected]>
> Signed-off-by: Geng Jianfeng <[email protected]>
> Signed-off-by: Zang Leigang <[email protected]>
> Signed-off-by: Yu Jianfeng <[email protected]>
[]
> --- /dev/null
> +++ b/drivers/scsi/ufs/ufs-hisi.c
> @@ -0,0 +1,624 @@
> +/*
> + *
> + * HiSilicon Hixxxx UFS Driver
> + *
> + * Copyright (c) 2016-2017 Linaro Ltd.
> + * Copyright (c) 2016-2017 HiSilicon Technologies Co., Ltd.
> + *
> + * This program is free software; you can redistribute it and/or
> +modify
> + * it under the terms of the GNU General Public License as published
> +by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
Would you consider using the new SPDX license ids instead?
Check Thomas doc patches for instructions.
This would be great and while you are it may be this could be adopted for all HiSilicon and Huawei past, present and future contributions?
Thank you for your kind consideration!
--
Cordially
Philippe Ombredanne