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Diffstat (limited to 'pkgs/patches-linux-5.15/851-0002-phy-marvell-phy-mvebu-a3700-comphy-Add-native-kernel.patch')
-rw-r--r--pkgs/patches-linux-5.15/851-0002-phy-marvell-phy-mvebu-a3700-comphy-Add-native-kernel.patch1564
1 files changed, 1564 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/851-0002-phy-marvell-phy-mvebu-a3700-comphy-Add-native-kernel.patch b/pkgs/patches-linux-5.15/851-0002-phy-marvell-phy-mvebu-a3700-comphy-Add-native-kernel.patch
new file mode 100644
index 0000000..73ead1e
--- /dev/null
+++ b/pkgs/patches-linux-5.15/851-0002-phy-marvell-phy-mvebu-a3700-comphy-Add-native-kernel.patch
@@ -0,0 +1,1564 @@
+From 9d276da259cce20b2ed7a868b6e6a6a205f7bb04 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
+Date: Thu, 23 Sep 2021 19:20:13 +0200
+Subject: [PATCH] phy: marvell: phy-mvebu-a3700-comphy: Add native kernel
+ implementation
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Remove old RPC implementation and add a new native kernel implementation.
+
+The old implementation uses ARM SMC API to issue RPC calls to ARM Trusted
+Firmware which provides real implementation of PHY configuration.
+
+But older versions of ARM Trusted Firmware do not provide this PHY
+configuration functionality, simply returning: operation not supported; or
+worse, some versions provide the configuration functionality incorrectly.
+
+For example the firmware shipped in ESPRESSObin board has this older
+version of ARM Trusted Firmware and therefore SATA, USB 3.0 and PCIe
+functionality do not work with newer versions of Linux kernel.
+
+Due to the above reasons, the following commits were introduced into Linux,
+to workaround these issues by ignoring -EOPNOTSUPP error code from
+phy-mvebu-a3700-comphy driver function phy_power_on():
+
+commit 45aefe3d2251 ("ata: ahci: mvebu: Make SATA PHY optional for Armada
+3720")
+commit 3241929b67d2 ("usb: host: xhci: mvebu: make USB 3.0 PHY optional for
+Armada 3720")
+commit b0c6ae0f8948 ("PCI: aardvark: Fix initialization with old Marvell's
+Arm Trusted Firmware")
+
+Replace this RPC implementation with proper native kernel implementation,
+which is independent on the firmware. Never return -EOPNOTSUPP for proper
+arguments.
+
+This should solve multiple issues with real-world boards, where it is not
+possible or really inconvenient to change the firmware. Let's eliminate
+these issues.
+
+This implementation is ported directly from Armada 3720 comphy driver found
+in newest version of ARM Trusted Firmware source code, but with various
+fixes of register names, some added comments, some refactoring due to the
+original code not conforming to kernel standards. Also PCIe mode poweroff
+support was added here, and PHY reset support. These changes are also going
+to be sent to ARM Trusted Firmware.
+
+Signed-off-by: Pali Rohár <pali@kernel.org>
+Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
+[ Pali did the porting from ATF.
+ I (Marek) then fixed some register names, some various other things,
+ added some comments and refactored the code to kernel standards. Also
+ fixed PHY poweroff and added PHY reset. ]
+Signed-off-by: Marek Behún <kabel@kernel.org>
+---
+ drivers/phy/marvell/phy-mvebu-a3700-comphy.c | 1351 ++++++++++++++++--
+ 1 file changed, 1234 insertions(+), 117 deletions(-)
+
+--- a/drivers/phy/marvell/phy-mvebu-a3700-comphy.c
++++ b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c
+@@ -5,12 +5,16 @@
+ * Authors:
+ * Evan Wang <xswang@marvell.com>
+ * Miquèl Raynal <miquel.raynal@bootlin.com>
++ * Pali Rohár <pali@kernel.org>
++ * Marek Behún <kabel@kernel.org>
+ *
+ * Structure inspired from phy-mvebu-cp110-comphy.c written by Antoine Tenart.
+- * SMC call initial support done by Grzegorz Jaszczyk.
++ * Comphy code from ARM Trusted Firmware ported by Pali Rohár <pali@kernel.org>
++ * and Marek Behún <kabel@kernel.org>.
+ */
+
+-#include <linux/arm-smccc.h>
++#include <linux/bitfield.h>
++#include <linux/clk.h>
+ #include <linux/io.h>
+ #include <linux/iopoll.h>
+ #include <linux/mfd/syscon.h>
+@@ -18,103 +22,1147 @@
+ #include <linux/phy.h>
+ #include <linux/phy/phy.h>
+ #include <linux/platform_device.h>
++#include <linux/spinlock.h>
+
+-#define MVEBU_A3700_COMPHY_LANES 3
++#define PLL_SET_DELAY_US 600
++#define COMPHY_PLL_SLEEP 1000
++#define COMPHY_PLL_TIMEOUT 150000
++
++/* Comphy lane2 indirect access register offset */
++#define COMPHY_LANE2_INDIR_ADDR 0x0
++#define COMPHY_LANE2_INDIR_DATA 0x4
++
++/* SATA and USB3 PHY offset compared to SATA PHY */
++#define COMPHY_LANE2_REGS_BASE 0x200
++
++/*
++ * When accessing common PHY lane registers directly, we need to shift by 1,
++ * since the registers are 16-bit.
++ */
++#define COMPHY_LANE_REG_DIRECT(reg) (((reg) & 0x7FF) << 1)
++
++/* COMPHY registers */
++#define COMPHY_POWER_PLL_CTRL 0x01
++#define PU_IVREF_BIT BIT(15)
++#define PU_PLL_BIT BIT(14)
++#define PU_RX_BIT BIT(13)
++#define PU_TX_BIT BIT(12)
++#define PU_TX_INTP_BIT BIT(11)
++#define PU_DFE_BIT BIT(10)
++#define RESET_DTL_RX_BIT BIT(9)
++#define PLL_LOCK_BIT BIT(8)
++#define REF_FREF_SEL_MASK GENMASK(4, 0)
++#define REF_FREF_SEL_SERDES_25MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x1)
++#define REF_FREF_SEL_SERDES_40MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x3)
++#define REF_FREF_SEL_SERDES_50MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x4)
++#define REF_FREF_SEL_PCIE_USB3_25MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x2)
++#define REF_FREF_SEL_PCIE_USB3_40MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x3)
++#define COMPHY_MODE_MASK GENMASK(7, 5)
++#define COMPHY_MODE_SATA FIELD_PREP(COMPHY_MODE_MASK, 0x0)
++#define COMPHY_MODE_PCIE FIELD_PREP(COMPHY_MODE_MASK, 0x3)
++#define COMPHY_MODE_SERDES FIELD_PREP(COMPHY_MODE_MASK, 0x4)
++#define COMPHY_MODE_USB3 FIELD_PREP(COMPHY_MODE_MASK, 0x5)
++
++#define COMPHY_KVCO_CAL_CTRL 0x02
++#define USE_MAX_PLL_RATE_BIT BIT(12)
++#define SPEED_PLL_MASK GENMASK(7, 2)
++#define SPEED_PLL_VALUE_16 FIELD_PREP(SPEED_PLL_MASK, 0x10)
++
++#define COMPHY_DIG_LOOPBACK_EN 0x23
++#define SEL_DATA_WIDTH_MASK GENMASK(11, 10)
++#define DATA_WIDTH_10BIT FIELD_PREP(SEL_DATA_WIDTH_MASK, 0x0)
++#define DATA_WIDTH_20BIT FIELD_PREP(SEL_DATA_WIDTH_MASK, 0x1)
++#define DATA_WIDTH_40BIT FIELD_PREP(SEL_DATA_WIDTH_MASK, 0x2)
++#define PLL_READY_TX_BIT BIT(4)
++
++#define COMPHY_SYNC_PATTERN 0x24
++#define TXD_INVERT_BIT BIT(10)
++#define RXD_INVERT_BIT BIT(11)
++
++#define COMPHY_SYNC_MASK_GEN 0x25
++#define PHY_GEN_MAX_MASK GENMASK(11, 10)
++#define PHY_GEN_MAX_USB3_5G FIELD_PREP(PHY_GEN_MAX_MASK, 0x1)
++
++#define COMPHY_ISOLATION_CTRL 0x26
++#define PHY_ISOLATE_MODE BIT(15)
++
++#define COMPHY_GEN2_SET2 0x3e
++#define GS2_TX_SSC_AMP_MASK GENMASK(15, 9)
++#define GS2_TX_SSC_AMP_4128 FIELD_PREP(GS2_TX_SSC_AMP_MASK, 0x20)
++#define GS2_VREG_RXTX_MAS_ISET_MASK GENMASK(8, 7)
++#define GS2_VREG_RXTX_MAS_ISET_60U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\
++ 0x0)
++#define GS2_VREG_RXTX_MAS_ISET_80U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\
++ 0x1)
++#define GS2_VREG_RXTX_MAS_ISET_100U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\
++ 0x2)
++#define GS2_VREG_RXTX_MAS_ISET_120U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\
++ 0x3)
++#define GS2_RSVD_6_0_MASK GENMASK(6, 0)
++
++#define COMPHY_GEN3_SET2 0x3f
++
++#define COMPHY_IDLE_SYNC_EN 0x48
++#define IDLE_SYNC_EN BIT(12)
++
++#define COMPHY_MISC_CTRL0 0x4F
++#define CLK100M_125M_EN BIT(4)
++#define TXDCLK_2X_SEL BIT(6)
++#define CLK500M_EN BIT(7)
++#define PHY_REF_CLK_SEL BIT(10)
++
++#define COMPHY_SFT_RESET 0x52
++#define SFT_RST BIT(9)
++#define SFT_RST_NO_REG BIT(10)
++
++#define COMPHY_MISC_CTRL1 0x73
++#define SEL_BITS_PCIE_FORCE BIT(15)
++
++#define COMPHY_GEN2_SET3 0x112
++#define GS3_FFE_CAP_SEL_MASK GENMASK(3, 0)
++#define GS3_FFE_CAP_SEL_VALUE FIELD_PREP(GS3_FFE_CAP_SEL_MASK, 0xF)
++
++/* PIPE registers */
++#define COMPHY_PIPE_LANE_CFG0 0x180
++#define PRD_TXDEEMPH0_MASK BIT(0)
++#define PRD_TXMARGIN_MASK GENMASK(3, 1)
++#define PRD_TXSWING_MASK BIT(4)
++#define CFG_TX_ALIGN_POS_MASK GENMASK(8, 5)
++
++#define COMPHY_PIPE_LANE_CFG1 0x181
++#define PRD_TXDEEMPH1_MASK BIT(15)
++#define USE_MAX_PLL_RATE_EN BIT(9)
++#define TX_DET_RX_MODE BIT(6)
++#define GEN2_TX_DATA_DLY_MASK GENMASK(4, 3)
++#define GEN2_TX_DATA_DLY_DEFT FIELD_PREP(GEN2_TX_DATA_DLY_MASK, 2)
++#define TX_ELEC_IDLE_MODE_EN BIT(0)
++
++#define COMPHY_PIPE_LANE_STAT1 0x183
++#define TXDCLK_PCLK_EN BIT(0)
++
++#define COMPHY_PIPE_LANE_CFG4 0x188
++#define SPREAD_SPECTRUM_CLK_EN BIT(7)
++
++#define COMPHY_PIPE_RST_CLK_CTRL 0x1C1
++#define PIPE_SOFT_RESET BIT(0)
++#define PIPE_REG_RESET BIT(1)
++#define MODE_CORE_CLK_FREQ_SEL BIT(9)
++#define MODE_PIPE_WIDTH_32 BIT(3)
++#define MODE_REFDIV_MASK GENMASK(5, 4)
++#define MODE_REFDIV_BY_4 FIELD_PREP(MODE_REFDIV_MASK, 0x2)
++
++#define COMPHY_PIPE_TEST_MODE_CTRL 0x1C2
++#define MODE_MARGIN_OVERRIDE BIT(2)
++
++#define COMPHY_PIPE_CLK_SRC_LO 0x1C3
++#define MODE_CLK_SRC BIT(0)
++#define BUNDLE_PERIOD_SEL BIT(1)
++#define BUNDLE_PERIOD_SCALE_MASK GENMASK(3, 2)
++#define BUNDLE_SAMPLE_CTRL BIT(4)
++#define PLL_READY_DLY_MASK GENMASK(7, 5)
++#define CFG_SEL_20B BIT(15)
++
++#define COMPHY_PIPE_PWR_MGM_TIM1 0x1D0
++#define CFG_PM_OSCCLK_WAIT_MASK GENMASK(15, 12)
++#define CFG_PM_RXDEN_WAIT_MASK GENMASK(11, 8)
++#define CFG_PM_RXDEN_WAIT_1_UNIT FIELD_PREP(CFG_PM_RXDEN_WAIT_MASK, 0x1)
++#define CFG_PM_RXDLOZ_WAIT_MASK GENMASK(7, 0)
++#define CFG_PM_RXDLOZ_WAIT_7_UNIT FIELD_PREP(CFG_PM_RXDLOZ_WAIT_MASK, 0x7)
++#define CFG_PM_RXDLOZ_WAIT_12_UNIT FIELD_PREP(CFG_PM_RXDLOZ_WAIT_MASK, 0xC)
++
++/*
++ * This register is not from PHY lane register space. It only exists in the
++ * indirect register space, before the actual PHY lane 2 registers. So the
++ * offset is absolute, not relative to COMPHY_LANE2_REGS_BASE.
++ * It is used only for SATA PHY initialization.
++ */
++#define COMPHY_RESERVED_REG 0x0E
++#define PHYCTRL_FRM_PIN_BIT BIT(13)
+
+-/* COMPHY Fast SMC function identifiers */
+-#define COMPHY_SIP_POWER_ON 0x82000001
+-#define COMPHY_SIP_POWER_OFF 0x82000002
+-#define COMPHY_SIP_PLL_LOCK 0x82000003
+-
+-#define COMPHY_FW_MODE_SATA 0x1
+-#define COMPHY_FW_MODE_SGMII 0x2
+-#define COMPHY_FW_MODE_2500BASEX 0x3
+-#define COMPHY_FW_MODE_USB3H 0x4
+-#define COMPHY_FW_MODE_USB3D 0x5
+-#define COMPHY_FW_MODE_PCIE 0x6
+-#define COMPHY_FW_MODE_USB3 0xa
+-
+-#define COMPHY_FW_SPEED_1_25G 0 /* SGMII 1G */
+-#define COMPHY_FW_SPEED_2_5G 1
+-#define COMPHY_FW_SPEED_3_125G 2 /* 2500BASE-X */
+-#define COMPHY_FW_SPEED_5G 3
+-#define COMPHY_FW_SPEED_MAX 0x3F
+-
+-#define COMPHY_FW_MODE(mode) ((mode) << 12)
+-#define COMPHY_FW_NET(mode, idx, speed) (COMPHY_FW_MODE(mode) | \
+- ((idx) << 8) | \
+- ((speed) << 2))
+-#define COMPHY_FW_PCIE(mode, speed, width) (COMPHY_FW_NET(mode, 0, speed) | \
+- ((width) << 18))
++/* South Bridge PHY Configuration Registers */
++#define COMPHY_PHY_REG(lane, reg) (((1 - (lane)) * 0x28) + ((reg) & 0x3f))
++
++/*
++ * lane0: USB3/GbE1 PHY Configuration 1
++ * lane1: PCIe/GbE0 PHY Configuration 1
++ * (used only by SGMII code)
++ */
++#define COMPHY_PHY_CFG1 0x0
++#define PIN_PU_IVREF_BIT BIT(1)
++#define PIN_RESET_CORE_BIT BIT(11)
++#define PIN_RESET_COMPHY_BIT BIT(12)
++#define PIN_PU_PLL_BIT BIT(16)
++#define PIN_PU_RX_BIT BIT(17)
++#define PIN_PU_TX_BIT BIT(18)
++#define PIN_TX_IDLE_BIT BIT(19)
++#define GEN_RX_SEL_MASK GENMASK(25, 22)
++#define GEN_RX_SEL_VALUE(val) FIELD_PREP(GEN_RX_SEL_MASK, (val))
++#define GEN_TX_SEL_MASK GENMASK(29, 26)
++#define GEN_TX_SEL_VALUE(val) FIELD_PREP(GEN_TX_SEL_MASK, (val))
++#define SERDES_SPEED_1_25_G 0x6
++#define SERDES_SPEED_3_125_G 0x8
++#define PHY_RX_INIT_BIT BIT(30)
++
++/*
++ * lane0: USB3/GbE1 PHY Status 1
++ * lane1: PCIe/GbE0 PHY Status 1
++ * (used only by SGMII code)
++ */
++#define COMPHY_PHY_STAT1 0x18
++#define PHY_RX_INIT_DONE_BIT BIT(0)
++#define PHY_PLL_READY_RX_BIT BIT(2)
++#define PHY_PLL_READY_TX_BIT BIT(3)
++
++/* PHY Selector */
++#define COMPHY_SELECTOR_PHY_REG 0xFC
++/* bit0: 0: Lane1 is GbE0; 1: Lane1 is PCIe */
++#define COMPHY_SELECTOR_PCIE_GBE0_SEL_BIT BIT(0)
++/* bit4: 0: Lane0 is GbE1; 1: Lane0 is USB3 */
++#define COMPHY_SELECTOR_USB3_GBE1_SEL_BIT BIT(4)
++/* bit8: 0: Lane0 is USB3 instead of GbE1, Lane2 is SATA; 1: Lane2 is USB3 */
++#define COMPHY_SELECTOR_USB3_PHY_SEL_BIT BIT(8)
+
+ struct mvebu_a3700_comphy_conf {
+ unsigned int lane;
+ enum phy_mode mode;
+ int submode;
+- u32 fw_mode;
+ };
+
+-#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode, _fw) \
++#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode) \
+ { \
+ .lane = _lane, \
+ .mode = _mode, \
+ .submode = _smode, \
+- .fw_mode = _fw, \
+ }
+
+-#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode, _fw) \
+- MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA, _fw)
++#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode) \
++ MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA)
+
+-#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode, _fw) \
+- MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode, _fw)
++#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode) \
++ MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode)
+
+ static const struct mvebu_a3700_comphy_conf mvebu_a3700_comphy_modes[] = {
+ /* lane 0 */
+- MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS,
+- COMPHY_FW_MODE_USB3H),
+- MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII,
+- COMPHY_FW_MODE_SGMII),
+- MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX,
+- COMPHY_FW_MODE_2500BASEX),
++ MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS),
++ MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII),
++ MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_1000BASEX),
++ MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX),
+ /* lane 1 */
+- MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE),
+- MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII,
+- COMPHY_FW_MODE_SGMII),
+- MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX,
+- COMPHY_FW_MODE_2500BASEX),
++ MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE),
++ MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII),
++ MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_1000BASEX),
++ MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX),
+ /* lane 2 */
+- MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA, COMPHY_FW_MODE_SATA),
+- MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS,
+- COMPHY_FW_MODE_USB3H),
++ MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA),
++ MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS),
++};
++
++struct mvebu_a3700_comphy_priv {
++ void __iomem *comphy_regs;
++ void __iomem *lane0_phy_regs; /* USB3 and GbE1 */
++ void __iomem *lane1_phy_regs; /* PCIe and GbE0 */
++ void __iomem *lane2_phy_indirect; /* SATA and USB3 */
++ spinlock_t lock; /* for PHY selector access */
++ bool xtal_is_40m;
+ };
+
+ struct mvebu_a3700_comphy_lane {
++ struct mvebu_a3700_comphy_priv *priv;
+ struct device *dev;
+ unsigned int id;
+ enum phy_mode mode;
+ int submode;
++ bool invert_tx;
++ bool invert_rx;
++ bool needs_reset;
++};
++
++struct gbe_phy_init_data_fix {
++ u16 addr;
++ u16 value;
++};
++
++/* Changes to 40M1G25 mode data required for running 40M3G125 init mode */
++static struct gbe_phy_init_data_fix gbe_phy_init_fix[] = {
++ { 0x005, 0x07CC }, { 0x015, 0x0000 }, { 0x01B, 0x0000 },
++ { 0x01D, 0x0000 }, { 0x01E, 0x0000 }, { 0x01F, 0x0000 },
++ { 0x020, 0x0000 }, { 0x021, 0x0030 }, { 0x026, 0x0888 },
++ { 0x04D, 0x0152 }, { 0x04F, 0xA020 }, { 0x050, 0x07CC },
++ { 0x053, 0xE9CA }, { 0x055, 0xBD97 }, { 0x071, 0x3015 },
++ { 0x076, 0x03AA }, { 0x07C, 0x0FDF }, { 0x0C2, 0x3030 },
++ { 0x0C3, 0x8000 }, { 0x0E2, 0x5550 }, { 0x0E3, 0x12A4 },
++ { 0x0E4, 0x7D00 }, { 0x0E6, 0x0C83 }, { 0x101, 0xFCC0 },
++ { 0x104, 0x0C10 }
+ };
+
+-static int mvebu_a3700_comphy_smc(unsigned long function, unsigned long lane,
+- unsigned long mode)
++/* 40M1G25 mode init data */
++static u16 gbe_phy_init[512] = {
++ /* 0 1 2 3 4 5 6 7 */
++ /*-----------------------------------------------------------*/
++ /* 8 9 A B C D E F */
++ 0x3110, 0xFD83, 0x6430, 0x412F, 0x82C0, 0x06FA, 0x4500, 0x6D26, /* 00 */
++ 0xAFC0, 0x8000, 0xC000, 0x0000, 0x2000, 0x49CC, 0x0BC9, 0x2A52, /* 08 */
++ 0x0BD2, 0x0CDE, 0x13D2, 0x0CE8, 0x1149, 0x10E0, 0x0000, 0x0000, /* 10 */
++ 0x0000, 0x0000, 0x0000, 0x0001, 0x0000, 0x4134, 0x0D2D, 0xFFFF, /* 18 */
++ 0xFFE0, 0x4030, 0x1016, 0x0030, 0x0000, 0x0800, 0x0866, 0x0000, /* 20 */
++ 0x0000, 0x0000, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, /* 28 */
++ 0xFFFF, 0xFFFF, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /* 30 */
++ 0x0000, 0x0000, 0x000F, 0x6A62, 0x1988, 0x3100, 0x3100, 0x3100, /* 38 */
++ 0x3100, 0xA708, 0x2430, 0x0830, 0x1030, 0x4610, 0xFF00, 0xFF00, /* 40 */
++ 0x0060, 0x1000, 0x0400, 0x0040, 0x00F0, 0x0155, 0x1100, 0xA02A, /* 48 */
++ 0x06FA, 0x0080, 0xB008, 0xE3ED, 0x5002, 0xB592, 0x7A80, 0x0001, /* 50 */
++ 0x020A, 0x8820, 0x6014, 0x8054, 0xACAA, 0xFC88, 0x2A02, 0x45CF, /* 58 */
++ 0x000F, 0x1817, 0x2860, 0x064F, 0x0000, 0x0204, 0x1800, 0x6000, /* 60 */
++ 0x810F, 0x4F23, 0x4000, 0x4498, 0x0850, 0x0000, 0x000E, 0x1002, /* 68 */
++ 0x9D3A, 0x3009, 0xD066, 0x0491, 0x0001, 0x6AB0, 0x0399, 0x3780, /* 70 */
++ 0x0040, 0x5AC0, 0x4A80, 0x0000, 0x01DF, 0x0000, 0x0007, 0x0000, /* 78 */
++ 0x2D54, 0x00A1, 0x4000, 0x0100, 0xA20A, 0x0000, 0x0000, 0x0000, /* 80 */
++ 0x0000, 0x0000, 0x0000, 0x7400, 0x0E81, 0x1000, 0x1242, 0x0210, /* 88 */
++ 0x80DF, 0x0F1F, 0x2F3F, 0x4F5F, 0x6F7F, 0x0F1F, 0x2F3F, 0x4F5F, /* 90 */
++ 0x6F7F, 0x4BAD, 0x0000, 0x0000, 0x0800, 0x0000, 0x2400, 0xB651, /* 98 */
++ 0xC9E0, 0x4247, 0x0A24, 0x0000, 0xAF19, 0x1004, 0x0000, 0x0000, /* A0 */
++ 0x0000, 0x0013, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /* A8 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /* B0 */
++ 0x0000, 0x0000, 0x0000, 0x0060, 0x0000, 0x0000, 0x0000, 0x0000, /* B8 */
++ 0x0000, 0x0000, 0x3010, 0xFA00, 0x0000, 0x0000, 0x0000, 0x0003, /* C0 */
++ 0x1618, 0x8200, 0x8000, 0x0400, 0x050F, 0x0000, 0x0000, 0x0000, /* C8 */
++ 0x4C93, 0x0000, 0x1000, 0x1120, 0x0010, 0x1242, 0x1242, 0x1E00, /* D0 */
++ 0x0000, 0x0000, 0x0000, 0x00F8, 0x0000, 0x0041, 0x0800, 0x0000, /* D8 */
++ 0x82A0, 0x572E, 0x2490, 0x14A9, 0x4E00, 0x0000, 0x0803, 0x0541, /* E0 */
++ 0x0C15, 0x0000, 0x0000, 0x0400, 0x2626, 0x0000, 0x0000, 0x4200, /* E8 */
++ 0x0000, 0xAA55, 0x1020, 0x0000, 0x0000, 0x5010, 0x0000, 0x0000, /* F0 */
++ 0x0000, 0x0000, 0x5000, 0x0000, 0x0000, 0x0000, 0x02F2, 0x0000, /* F8 */
++ 0x101F, 0xFDC0, 0x4000, 0x8010, 0x0110, 0x0006, 0x0000, 0x0000, /*100 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*108 */
++ 0x04CF, 0x0000, 0x04CF, 0x0000, 0x04CF, 0x0000, 0x04C6, 0x0000, /*110 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*118 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*120 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*128 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*130 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*138 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*140 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*148 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*150 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*158 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*160 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*168 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*170 */
++ 0x0000, 0x0000, 0x0000, 0x00F0, 0x08A2, 0x3112, 0x0A14, 0x0000, /*178 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*180 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*188 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*190 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*198 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1A0 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1A8 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1B0 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1B8 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1C0 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1C8 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1D0 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1D8 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1E0 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1E8 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1F0 */
++ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 /*1F8 */
++};
++
++static inline void comphy_reg_set(void __iomem *addr, u32 data, u32 mask)
+ {
+- struct arm_smccc_res res;
+- s32 ret;
++ u32 val;
+
+- arm_smccc_smc(function, lane, mode, 0, 0, 0, 0, 0, &res);
+- ret = res.a0;
++ val = readl(addr);
++ val = (val & ~mask) | (data & mask);
++ writel(val, addr);
++}
+
+- switch (ret) {
+- case SMCCC_RET_SUCCESS:
+- return 0;
+- case SMCCC_RET_NOT_SUPPORTED:
+- return -EOPNOTSUPP;
++static inline void comphy_reg_set16(void __iomem *addr, u16 data, u16 mask)
++{
++ u16 val;
++
++ val = readw(addr);
++ val = (val & ~mask) | (data & mask);
++ writew(val, addr);
++}
++
++/* Used for accessing lane 2 registers (SATA/USB3 PHY) */
++static void comphy_set_indirect(struct mvebu_a3700_comphy_priv *priv,
++ u32 offset, u16 data, u16 mask)
++{
++ writel(offset,
++ priv->lane2_phy_indirect + COMPHY_LANE2_INDIR_ADDR);
++ comphy_reg_set(priv->lane2_phy_indirect + COMPHY_LANE2_INDIR_DATA,
++ data, mask);
++}
++
++static void comphy_lane_reg_set(struct mvebu_a3700_comphy_lane *lane,
++ u16 reg, u16 data, u16 mask)
++{
++ if (lane->id == 2) {
++ /* lane 2 PHY registers are accessed indirectly */
++ comphy_set_indirect(lane->priv,
++ reg + COMPHY_LANE2_REGS_BASE,
++ data, mask);
++ } else {
++ void __iomem *base = lane->id == 1 ?
++ lane->priv->lane1_phy_regs :
++ lane->priv->lane0_phy_regs;
++
++ comphy_reg_set16(base + COMPHY_LANE_REG_DIRECT(reg),
++ data, mask);
++ }
++}
++
++static int comphy_lane_reg_poll(struct mvebu_a3700_comphy_lane *lane,
++ u16 reg, u16 bits,
++ ulong sleep_us, ulong timeout_us)
++{
++ int ret;
++
++ if (lane->id == 2) {
++ u32 data;
++
++ /* lane 2 PHY registers are accessed indirectly */
++ writel(reg + COMPHY_LANE2_REGS_BASE,
++ lane->priv->lane2_phy_indirect +
++ COMPHY_LANE2_INDIR_ADDR);
++
++ ret = readl_poll_timeout(lane->priv->lane2_phy_indirect +
++ COMPHY_LANE2_INDIR_DATA,
++ data, (data & bits) == bits,
++ sleep_us, timeout_us);
++ } else {
++ void __iomem *base = lane->id == 1 ?
++ lane->priv->lane1_phy_regs :
++ lane->priv->lane0_phy_regs;
++ u16 data;
++
++ ret = readw_poll_timeout(base + COMPHY_LANE_REG_DIRECT(reg),
++ data, (data & bits) == bits,
++ sleep_us, timeout_us);
++ }
++
++ return ret;
++}
++
++static void comphy_periph_reg_set(struct mvebu_a3700_comphy_lane *lane,
++ u8 reg, u32 data, u32 mask)
++{
++ comphy_reg_set(lane->priv->comphy_regs + COMPHY_PHY_REG(lane->id, reg),
++ data, mask);
++}
++
++static int comphy_periph_reg_poll(struct mvebu_a3700_comphy_lane *lane,
++ u8 reg, u32 bits,
++ ulong sleep_us, ulong timeout_us)
++{
++ u32 data;
++
++ return readl_poll_timeout(lane->priv->comphy_regs +
++ COMPHY_PHY_REG(lane->id, reg),
++ data, (data & bits) == bits,
++ sleep_us, timeout_us);
++}
++
++/* PHY selector configures with corresponding modes */
++static int
++mvebu_a3700_comphy_set_phy_selector(struct mvebu_a3700_comphy_lane *lane)
++{
++ u32 old, new, clr = 0, set = 0;
++ unsigned long flags;
++
++ switch (lane->mode) {
++ case PHY_MODE_SATA:
++ /* SATA must be in Lane2 */
++ if (lane->id == 2)
++ clr = COMPHY_SELECTOR_USB3_PHY_SEL_BIT;
++ else
++ goto error;
++ break;
++
++ case PHY_MODE_ETHERNET:
++ if (lane->id == 0)
++ clr = COMPHY_SELECTOR_USB3_GBE1_SEL_BIT;
++ else if (lane->id == 1)
++ clr = COMPHY_SELECTOR_PCIE_GBE0_SEL_BIT;
++ else
++ goto error;
++ break;
++
++ case PHY_MODE_USB_HOST_SS:
++ if (lane->id == 2)
++ set = COMPHY_SELECTOR_USB3_PHY_SEL_BIT;
++ else if (lane->id == 0)
++ set = COMPHY_SELECTOR_USB3_GBE1_SEL_BIT;
++ else
++ goto error;
++ break;
++
++ case PHY_MODE_PCIE:
++ /* PCIE must be in Lane1 */
++ if (lane->id == 1)
++ set = COMPHY_SELECTOR_PCIE_GBE0_SEL_BIT;
++ else
++ goto error;
++ break;
++
++ default:
++ goto error;
++ }
++
++ spin_lock_irqsave(&lane->priv->lock, flags);
++
++ old = readl(lane->priv->comphy_regs + COMPHY_SELECTOR_PHY_REG);
++ new = (old & ~clr) | set;
++ writel(new, lane->priv->comphy_regs + COMPHY_SELECTOR_PHY_REG);
++
++ spin_unlock_irqrestore(&lane->priv->lock, flags);
++
++ dev_dbg(lane->dev,
++ "COMPHY[%d] mode[%d] changed PHY selector 0x%08x -> 0x%08x\n",
++ lane->id, lane->mode, old, new);
++
++ return 0;
++error:
++ dev_err(lane->dev, "COMPHY[%d] mode[%d] is invalid\n", lane->id,
++ lane->mode);
++ return -EINVAL;
++}
++
++static int
++mvebu_a3700_comphy_sata_power_on(struct mvebu_a3700_comphy_lane *lane)
++{
++ u32 mask, data, ref_clk;
++ int ret;
++
++ /* Configure phy selector for SATA */
++ ret = mvebu_a3700_comphy_set_phy_selector(lane);
++ if (ret)
++ return ret;
++
++ /* Clear phy isolation mode to make it work in normal mode */
++ comphy_lane_reg_set(lane, COMPHY_ISOLATION_CTRL,
++ 0x0, PHY_ISOLATE_MODE);
++
++ /* 0. Check the Polarity invert bits */
++ data = 0x0;
++ if (lane->invert_tx)
++ data |= TXD_INVERT_BIT;
++ if (lane->invert_rx)
++ data |= RXD_INVERT_BIT;
++ mask = TXD_INVERT_BIT | RXD_INVERT_BIT;
++ comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask);
++
++ /* 1. Select 40-bit data width */
++ comphy_lane_reg_set(lane, COMPHY_DIG_LOOPBACK_EN,
++ DATA_WIDTH_40BIT, SEL_DATA_WIDTH_MASK);
++
++ /* 2. Select reference clock(25M) and PHY mode (SATA) */
++ if (lane->priv->xtal_is_40m)
++ ref_clk = REF_FREF_SEL_SERDES_40MHZ;
++ else
++ ref_clk = REF_FREF_SEL_SERDES_25MHZ;
++
++ data = ref_clk | COMPHY_MODE_SATA;
++ mask = REF_FREF_SEL_MASK | COMPHY_MODE_MASK;
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask);
++
++ /* 3. Use maximum PLL rate (no power save) */
++ comphy_lane_reg_set(lane, COMPHY_KVCO_CAL_CTRL,
++ USE_MAX_PLL_RATE_BIT, USE_MAX_PLL_RATE_BIT);
++
++ /* 4. Reset reserved bit */
++ comphy_set_indirect(lane->priv, COMPHY_RESERVED_REG,
++ 0x0, PHYCTRL_FRM_PIN_BIT);
++
++ /* 5. Set vendor-specific configuration (It is done in sata driver) */
++ /* XXX: in U-Boot below sequence was executed in this place, in Linux
++ * not. Now it is done only in U-Boot before this comphy
++ * initialization - tests shows that it works ok, but in case of any
++ * future problem it is left for reference.
++ * reg_set(MVEBU_REGS_BASE + 0xe00a0, 0, 0xffffffff);
++ * reg_set(MVEBU_REGS_BASE + 0xe00a4, BIT(6), BIT(6));
++ */
++
++ /* Wait for > 55 us to allow PLL be enabled */
++ udelay(PLL_SET_DELAY_US);
++
++ /* Polling status */
++ ret = comphy_lane_reg_poll(lane, COMPHY_DIG_LOOPBACK_EN,
++ PLL_READY_TX_BIT, COMPHY_PLL_SLEEP,
++ COMPHY_PLL_TIMEOUT);
++ if (ret) {
++ dev_err(lane->dev, "Failed to lock SATA PLL\n");
++ return ret;
++ }
++
++ return 0;
++}
++
++static void comphy_gbe_phy_init(struct mvebu_a3700_comphy_lane *lane,
++ bool is_1gbps)
++{
++ int addr, fix_idx;
++ u16 val;
++
++ fix_idx = 0;
++ for (addr = 0; addr < 512; addr++) {
++ /*
++ * All PHY register values are defined in full for 3.125Gbps
++ * SERDES speed. The values required for 1.25 Gbps are almost
++ * the same and only few registers should be "fixed" in
++ * comparison to 3.125 Gbps values. These register values are
++ * stored in "gbe_phy_init_fix" array.
++ */
++ if (!is_1gbps && gbe_phy_init_fix[fix_idx].addr == addr) {
++ /* Use new value */
++ val = gbe_phy_init_fix[fix_idx].value;
++ if (fix_idx < ARRAY_SIZE(gbe_phy_init_fix))
++ fix_idx++;
++ } else {
++ val = gbe_phy_init[addr];
++ }
++
++ comphy_lane_reg_set(lane, addr, val, 0xFFFF);
++ }
++}
++
++static int
++mvebu_a3700_comphy_ethernet_power_on(struct mvebu_a3700_comphy_lane *lane)
++{
++ u32 mask, data, speed_sel;
++ int ret;
++
++ /* Set selector */
++ ret = mvebu_a3700_comphy_set_phy_selector(lane);
++ if (ret)
++ return ret;
++
++ /*
++ * 1. Reset PHY by setting PHY input port PIN_RESET=1.
++ * 2. Set PHY input port PIN_TX_IDLE=1, PIN_PU_IVREF=1 to keep
++ * PHY TXP/TXN output to idle state during PHY initialization
++ * 3. Set PHY input port PIN_PU_PLL=0, PIN_PU_RX=0, PIN_PU_TX=0.
++ */
++ data = PIN_PU_IVREF_BIT | PIN_TX_IDLE_BIT | PIN_RESET_COMPHY_BIT;
++ mask = data | PIN_RESET_CORE_BIT | PIN_PU_PLL_BIT | PIN_PU_RX_BIT |
++ PIN_PU_TX_BIT | PHY_RX_INIT_BIT;
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask);
++
++ /* 4. Release reset to the PHY by setting PIN_RESET=0. */
++ data = 0x0;
++ mask = PIN_RESET_COMPHY_BIT;
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask);
++
++ /*
++ * 5. Set PIN_PHY_GEN_TX[3:0] and PIN_PHY_GEN_RX[3:0] to decide COMPHY
++ * bit rate
++ */
++ switch (lane->submode) {
++ case PHY_INTERFACE_MODE_SGMII:
++ case PHY_INTERFACE_MODE_1000BASEX:
++ /* SGMII 1G, SerDes speed 1.25G */
++ speed_sel = SERDES_SPEED_1_25_G;
++ break;
++ case PHY_INTERFACE_MODE_2500BASEX:
++ /* 2500Base-X, SerDes speed 3.125G */
++ speed_sel = SERDES_SPEED_3_125_G;
++ break;
+ default:
++ /* Other rates are not supported */
++ dev_err(lane->dev,
++ "unsupported phy speed %d on comphy lane%d\n",
++ lane->submode, lane->id);
+ return -EINVAL;
+ }
++ data = GEN_RX_SEL_VALUE(speed_sel) | GEN_TX_SEL_VALUE(speed_sel);
++ mask = GEN_RX_SEL_MASK | GEN_TX_SEL_MASK;
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask);
++
++ /*
++ * 6. Wait 10mS for bandgap and reference clocks to stabilize; then
++ * start SW programming.
++ */
++ mdelay(10);
++
++ /* 7. Program COMPHY register PHY_MODE */
++ data = COMPHY_MODE_SERDES;
++ mask = COMPHY_MODE_MASK;
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask);
++
++ /*
++ * 8. Set COMPHY register REFCLK_SEL to select the correct REFCLK
++ * source
++ */
++ data = 0x0;
++ mask = PHY_REF_CLK_SEL;
++ comphy_lane_reg_set(lane, COMPHY_MISC_CTRL0, data, mask);
++
++ /*
++ * 9. Set correct reference clock frequency in COMPHY register
++ * REF_FREF_SEL.
++ */
++ if (lane->priv->xtal_is_40m)
++ data = REF_FREF_SEL_SERDES_50MHZ;
++ else
++ data = REF_FREF_SEL_SERDES_25MHZ;
++
++ mask = REF_FREF_SEL_MASK;
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask);
++
++ /* 10. Program COMPHY register PHY_GEN_MAX[1:0]
++ * This step is mentioned in the flow received from verification team.
++ * However the PHY_GEN_MAX value is only meaningful for other interfaces
++ * (not SERDES). For instance, it selects SATA speed 1.5/3/6 Gbps or
++ * PCIe speed 2.5/5 Gbps
++ */
++
++ /*
++ * 11. Program COMPHY register SEL_BITS to set correct parallel data
++ * bus width
++ */
++ data = DATA_WIDTH_10BIT;
++ mask = SEL_DATA_WIDTH_MASK;
++ comphy_lane_reg_set(lane, COMPHY_DIG_LOOPBACK_EN, data, mask);
++
++ /*
++ * 12. As long as DFE function needs to be enabled in any mode,
++ * COMPHY register DFE_UPDATE_EN[5:0] shall be programmed to 0x3F
++ * for real chip during COMPHY power on.
++ * The step 14 exists (and empty) in the original initialization flow
++ * obtained from the verification team. According to the functional
++ * specification DFE_UPDATE_EN already has the default value 0x3F
++ */
++
++ /*
++ * 13. Program COMPHY GEN registers.
++ * These registers should be programmed based on the lab testing result
++ * to achieve optimal performance. Please contact the CEA group to get
++ * the related GEN table during real chip bring-up. We only required to
++ * run though the entire registers programming flow defined by
++ * "comphy_gbe_phy_init" when the REF clock is 40 MHz. For REF clock
++ * 25 MHz the default values stored in PHY registers are OK.
++ */
++ dev_dbg(lane->dev, "Running C-DPI phy init %s mode\n",
++ lane->submode == PHY_INTERFACE_MODE_2500BASEX ? "2G5" : "1G");
++ if (lane->priv->xtal_is_40m)
++ comphy_gbe_phy_init(lane,
++ lane->submode != PHY_INTERFACE_MODE_2500BASEX);
++
++ /*
++ * 14. [Simulation Only] should not be used for real chip.
++ * By pass power up calibration by programming EXT_FORCE_CAL_DONE
++ * (R02h[9]) to 1 to shorten COMPHY simulation time.
++ */
++
++ /*
++ * 15. [Simulation Only: should not be used for real chip]
++ * Program COMPHY register FAST_DFE_TIMER_EN=1 to shorten RX training
++ * simulation time.
++ */
++
++ /*
++ * 16. Check the PHY Polarity invert bit
++ */
++ data = 0x0;
++ if (lane->invert_tx)
++ data |= TXD_INVERT_BIT;
++ if (lane->invert_rx)
++ data |= RXD_INVERT_BIT;
++ mask = TXD_INVERT_BIT | RXD_INVERT_BIT;
++ comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask);
++
++ /*
++ * 17. Set PHY input ports PIN_PU_PLL, PIN_PU_TX and PIN_PU_RX to 1 to
++ * start PHY power up sequence. All the PHY register programming should
++ * be done before PIN_PU_PLL=1. There should be no register programming
++ * for normal PHY operation from this point.
++ */
++ data = PIN_PU_PLL_BIT | PIN_PU_RX_BIT | PIN_PU_TX_BIT;
++ mask = data;
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask);
++
++ /*
++ * 18. Wait for PHY power up sequence to finish by checking output ports
++ * PIN_PLL_READY_TX=1 and PIN_PLL_READY_RX=1.
++ */
++ ret = comphy_periph_reg_poll(lane, COMPHY_PHY_STAT1,
++ PHY_PLL_READY_TX_BIT |
++ PHY_PLL_READY_RX_BIT,
++ COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT);
++ if (ret) {
++ dev_err(lane->dev, "Failed to lock PLL for SERDES PHY %d\n",
++ lane->id);
++ return ret;
++ }
++
++ /*
++ * 19. Set COMPHY input port PIN_TX_IDLE=0
++ */
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, 0x0, PIN_TX_IDLE_BIT);
++
++ /*
++ * 20. After valid data appear on PIN_RXDATA bus, set PIN_RX_INIT=1. To
++ * start RX initialization. PIN_RX_INIT_DONE will be cleared to 0 by the
++ * PHY After RX initialization is done, PIN_RX_INIT_DONE will be set to
++ * 1 by COMPHY Set PIN_RX_INIT=0 after PIN_RX_INIT_DONE= 1. Please
++ * refer to RX initialization part for details.
++ */
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1,
++ PHY_RX_INIT_BIT, PHY_RX_INIT_BIT);
++
++ ret = comphy_periph_reg_poll(lane, COMPHY_PHY_STAT1,
++ PHY_PLL_READY_TX_BIT |
++ PHY_PLL_READY_RX_BIT,
++ COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT);
++ if (ret) {
++ dev_err(lane->dev, "Failed to lock PLL for SERDES PHY %d\n",
++ lane->id);
++ return ret;
++ }
++
++ ret = comphy_periph_reg_poll(lane, COMPHY_PHY_STAT1,
++ PHY_RX_INIT_DONE_BIT,
++ COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT);
++ if (ret) {
++ dev_err(lane->dev, "Failed to init RX of SERDES PHY %d\n",
++ lane->id);
++ return ret;
++ }
++
++ return 0;
+ }
+
+-static int mvebu_a3700_comphy_get_fw_mode(int lane,
++static int
++mvebu_a3700_comphy_usb3_power_on(struct mvebu_a3700_comphy_lane *lane)
++{
++ u32 mask, data, cfg, ref_clk;
++ int ret;
++
++ /* Set phy seclector */
++ ret = mvebu_a3700_comphy_set_phy_selector(lane);
++ if (ret)
++ return ret;
++
++ /*
++ * 0. Set PHY OTG Control(0x5d034), bit 4, Power up OTG module The
++ * register belong to UTMI module, so it is set in UTMI phy driver.
++ */
++
++ /*
++ * 1. Set PRD_TXDEEMPH (3.5db de-emph)
++ */
++ data = PRD_TXDEEMPH0_MASK;
++ mask = PRD_TXDEEMPH0_MASK | PRD_TXMARGIN_MASK | PRD_TXSWING_MASK |
++ CFG_TX_ALIGN_POS_MASK;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG0, data, mask);
++
++ /*
++ * 2. Set BIT0: enable transmitter in high impedance mode
++ * Set BIT[3:4]: delay 2 clock cycles for HiZ off latency
++ * Set BIT6: Tx detect Rx at HiZ mode
++ * Unset BIT15: set to 0 to set USB3 De-emphasize level to -3.5db
++ * together with bit 0 of COMPHY_PIPE_LANE_CFG0 register
++ */
++ data = TX_DET_RX_MODE | GEN2_TX_DATA_DLY_DEFT | TX_ELEC_IDLE_MODE_EN;
++ mask = PRD_TXDEEMPH1_MASK | TX_DET_RX_MODE | GEN2_TX_DATA_DLY_MASK |
++ TX_ELEC_IDLE_MODE_EN;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG1, data, mask);
++
++ /*
++ * 3. Set Spread Spectrum Clock Enabled
++ */
++ comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG4,
++ SPREAD_SPECTRUM_CLK_EN, SPREAD_SPECTRUM_CLK_EN);
++
++ /*
++ * 4. Set Override Margining Controls From the MAC:
++ * Use margining signals from lane configuration
++ */
++ comphy_lane_reg_set(lane, COMPHY_PIPE_TEST_MODE_CTRL,
++ MODE_MARGIN_OVERRIDE, 0xFFFF);
++
++ /*
++ * 5. Set Lane-to-Lane Bundle Clock Sampling Period = per PCLK cycles
++ * set Mode Clock Source = PCLK is generated from REFCLK
++ */
++ data = 0x0;
++ mask = MODE_CLK_SRC | BUNDLE_PERIOD_SEL | BUNDLE_PERIOD_SCALE_MASK |
++ BUNDLE_SAMPLE_CTRL | PLL_READY_DLY_MASK;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_CLK_SRC_LO, data, mask);
++
++ /*
++ * 6. Set G2 Spread Spectrum Clock Amplitude at 4K
++ */
++ comphy_lane_reg_set(lane, COMPHY_GEN2_SET2,
++ GS2_TX_SSC_AMP_4128, GS2_TX_SSC_AMP_MASK);
++
++ /*
++ * 7. Unset G3 Spread Spectrum Clock Amplitude
++ * set G3 TX and RX Register Master Current Select
++ */
++ data = GS2_VREG_RXTX_MAS_ISET_60U;
++ mask = GS2_TX_SSC_AMP_MASK | GS2_VREG_RXTX_MAS_ISET_MASK |
++ GS2_RSVD_6_0_MASK;
++ comphy_lane_reg_set(lane, COMPHY_GEN3_SET2, data, mask);
++
++ /*
++ * 8. Check crystal jumper setting and program the Power and PLL Control
++ * accordingly Change RX wait
++ */
++ if (lane->priv->xtal_is_40m) {
++ ref_clk = REF_FREF_SEL_PCIE_USB3_40MHZ;
++ cfg = CFG_PM_RXDLOZ_WAIT_12_UNIT;
++ } else {
++ ref_clk = REF_FREF_SEL_PCIE_USB3_25MHZ;
++ cfg = CFG_PM_RXDLOZ_WAIT_7_UNIT;
++ }
++
++ data = PU_IVREF_BIT | PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT |
++ PU_TX_INTP_BIT | PU_DFE_BIT | COMPHY_MODE_USB3 | ref_clk;
++ mask = PU_IVREF_BIT | PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT |
++ PU_TX_INTP_BIT | PU_DFE_BIT | PLL_LOCK_BIT | COMPHY_MODE_MASK |
++ REF_FREF_SEL_MASK;
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask);
++
++ data = CFG_PM_RXDEN_WAIT_1_UNIT | cfg;
++ mask = CFG_PM_OSCCLK_WAIT_MASK | CFG_PM_RXDEN_WAIT_MASK |
++ CFG_PM_RXDLOZ_WAIT_MASK;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_PWR_MGM_TIM1, data, mask);
++
++ /*
++ * 9. Enable idle sync
++ */
++ comphy_lane_reg_set(lane, COMPHY_IDLE_SYNC_EN,
++ IDLE_SYNC_EN, IDLE_SYNC_EN);
++
++ /*
++ * 10. Enable the output of 500M clock
++ */
++ comphy_lane_reg_set(lane, COMPHY_MISC_CTRL0, CLK500M_EN, CLK500M_EN);
++
++ /*
++ * 11. Set 20-bit data width
++ */
++ comphy_lane_reg_set(lane, COMPHY_DIG_LOOPBACK_EN,
++ DATA_WIDTH_20BIT, 0xFFFF);
++
++ /*
++ * 12. Override Speed_PLL value and use MAC PLL
++ */
++ data = SPEED_PLL_VALUE_16 | USE_MAX_PLL_RATE_BIT;
++ mask = 0xFFFF;
++ comphy_lane_reg_set(lane, COMPHY_KVCO_CAL_CTRL, data, mask);
++
++ /*
++ * 13. Check the Polarity invert bit
++ */
++ data = 0x0;
++ if (lane->invert_tx)
++ data |= TXD_INVERT_BIT;
++ if (lane->invert_rx)
++ data |= RXD_INVERT_BIT;
++ mask = TXD_INVERT_BIT | RXD_INVERT_BIT;
++ comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask);
++
++ /*
++ * 14. Set max speed generation to USB3.0 5Gbps
++ */
++ comphy_lane_reg_set(lane, COMPHY_SYNC_MASK_GEN,
++ PHY_GEN_MAX_USB3_5G, PHY_GEN_MAX_MASK);
++
++ /*
++ * 15. Set capacitor value for FFE gain peaking to 0xF
++ */
++ comphy_lane_reg_set(lane, COMPHY_GEN2_SET3,
++ GS3_FFE_CAP_SEL_VALUE, GS3_FFE_CAP_SEL_MASK);
++
++ /*
++ * 16. Release SW reset
++ */
++ data = MODE_CORE_CLK_FREQ_SEL | MODE_PIPE_WIDTH_32 | MODE_REFDIV_BY_4;
++ mask = 0xFFFF;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, data, mask);
++
++ /* Wait for > 55 us to allow PCLK be enabled */
++ udelay(PLL_SET_DELAY_US);
++
++ ret = comphy_lane_reg_poll(lane, COMPHY_PIPE_LANE_STAT1, TXDCLK_PCLK_EN,
++ COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT);
++ if (ret) {
++ dev_err(lane->dev, "Failed to lock USB3 PLL\n");
++ return ret;
++ }
++
++ return 0;
++}
++
++static int
++mvebu_a3700_comphy_pcie_power_on(struct mvebu_a3700_comphy_lane *lane)
++{
++ u32 mask, data, ref_clk;
++ int ret;
++
++ /* Configure phy selector for PCIe */
++ ret = mvebu_a3700_comphy_set_phy_selector(lane);
++ if (ret)
++ return ret;
++
++ /* 1. Enable max PLL. */
++ comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG1,
++ USE_MAX_PLL_RATE_EN, USE_MAX_PLL_RATE_EN);
++
++ /* 2. Select 20 bit SERDES interface. */
++ comphy_lane_reg_set(lane, COMPHY_PIPE_CLK_SRC_LO,
++ CFG_SEL_20B, CFG_SEL_20B);
++
++ /* 3. Force to use reg setting for PCIe mode */
++ comphy_lane_reg_set(lane, COMPHY_MISC_CTRL1,
++ SEL_BITS_PCIE_FORCE, SEL_BITS_PCIE_FORCE);
++
++ /* 4. Change RX wait */
++ data = CFG_PM_RXDEN_WAIT_1_UNIT | CFG_PM_RXDLOZ_WAIT_12_UNIT;
++ mask = CFG_PM_OSCCLK_WAIT_MASK | CFG_PM_RXDEN_WAIT_MASK |
++ CFG_PM_RXDLOZ_WAIT_MASK;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_PWR_MGM_TIM1, data, mask);
++
++ /* 5. Enable idle sync */
++ comphy_lane_reg_set(lane, COMPHY_IDLE_SYNC_EN,
++ IDLE_SYNC_EN, IDLE_SYNC_EN);
++
++ /* 6. Enable the output of 100M/125M/500M clock */
++ data = CLK500M_EN | TXDCLK_2X_SEL | CLK100M_125M_EN;
++ mask = data;
++ comphy_lane_reg_set(lane, COMPHY_MISC_CTRL0, data, mask);
++
++ /*
++ * 7. Enable TX, PCIE global register, 0xd0074814, it is done in
++ * PCI-E driver
++ */
++
++ /*
++ * 8. Check crystal jumper setting and program the Power and PLL
++ * Control accordingly
++ */
++
++ if (lane->priv->xtal_is_40m)
++ ref_clk = REF_FREF_SEL_PCIE_USB3_40MHZ;
++ else
++ ref_clk = REF_FREF_SEL_PCIE_USB3_25MHZ;
++
++ data = PU_IVREF_BIT | PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT |
++ PU_TX_INTP_BIT | PU_DFE_BIT | COMPHY_MODE_PCIE | ref_clk;
++ mask = 0xFFFF;
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask);
++
++ /* 9. Override Speed_PLL value and use MAC PLL */
++ comphy_lane_reg_set(lane, COMPHY_KVCO_CAL_CTRL,
++ SPEED_PLL_VALUE_16 | USE_MAX_PLL_RATE_BIT,
++ 0xFFFF);
++
++ /* 10. Check the Polarity invert bit */
++ data = 0x0;
++ if (lane->invert_tx)
++ data |= TXD_INVERT_BIT;
++ if (lane->invert_rx)
++ data |= RXD_INVERT_BIT;
++ mask = TXD_INVERT_BIT | RXD_INVERT_BIT;
++ comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask);
++
++ /* 11. Release SW reset */
++ data = MODE_CORE_CLK_FREQ_SEL | MODE_PIPE_WIDTH_32;
++ mask = data | PIPE_SOFT_RESET | MODE_REFDIV_MASK;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, data, mask);
++
++ /* Wait for > 55 us to allow PCLK be enabled */
++ udelay(PLL_SET_DELAY_US);
++
++ ret = comphy_lane_reg_poll(lane, COMPHY_PIPE_LANE_STAT1, TXDCLK_PCLK_EN,
++ COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT);
++ if (ret) {
++ dev_err(lane->dev, "Failed to lock PCIE PLL\n");
++ return ret;
++ }
++
++ return 0;
++}
++
++static void
++mvebu_a3700_comphy_usb3_power_off(struct mvebu_a3700_comphy_lane *lane)
++{
++ /*
++ * Currently the USB3 MAC sets the USB3 PHY to low state, so we do not
++ * need to power off USB3 PHY again.
++ */
++}
++
++static void
++mvebu_a3700_comphy_sata_power_off(struct mvebu_a3700_comphy_lane *lane)
++{
++ /* Set phy isolation mode */
++ comphy_lane_reg_set(lane, COMPHY_ISOLATION_CTRL,
++ PHY_ISOLATE_MODE, PHY_ISOLATE_MODE);
++
++ /* Power off PLL, Tx, Rx */
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL,
++ 0x0, PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT);
++}
++
++static void
++mvebu_a3700_comphy_ethernet_power_off(struct mvebu_a3700_comphy_lane *lane)
++{
++ u32 mask, data;
++
++ data = PIN_RESET_CORE_BIT | PIN_RESET_COMPHY_BIT | PIN_PU_IVREF_BIT |
++ PHY_RX_INIT_BIT;
++ mask = data;
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask);
++}
++
++static void
++mvebu_a3700_comphy_pcie_power_off(struct mvebu_a3700_comphy_lane *lane)
++{
++ /* Power off PLL, Tx, Rx */
++ comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL,
++ 0x0, PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT);
++}
++
++static int mvebu_a3700_comphy_reset(struct phy *phy)
++{
++ struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy);
++ u16 mask, data;
++
++ dev_dbg(lane->dev, "resetting lane %d\n", lane->id);
++
++ /* COMPHY reset for internal logic */
++ comphy_lane_reg_set(lane, COMPHY_SFT_RESET,
++ SFT_RST_NO_REG, SFT_RST_NO_REG);
++
++ /* COMPHY register reset (cleared automatically) */
++ comphy_lane_reg_set(lane, COMPHY_SFT_RESET, SFT_RST, SFT_RST);
++
++ /* PIPE soft and register reset */
++ data = PIPE_SOFT_RESET | PIPE_REG_RESET;
++ mask = data;
++ comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, data, mask);
++
++ /* Release PIPE register reset */
++ comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL,
++ 0x0, PIPE_REG_RESET);
++
++ /* Reset SB configuration register (only for lanes 0 and 1) */
++ if (lane->id == 0 || lane->id == 1) {
++ u32 mask, data;
++
++ data = PIN_RESET_CORE_BIT | PIN_RESET_COMPHY_BIT |
++ PIN_PU_PLL_BIT | PIN_PU_RX_BIT | PIN_PU_TX_BIT;
++ mask = data | PIN_PU_IVREF_BIT | PIN_TX_IDLE_BIT;
++ comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask);
++ }
++
++ return 0;
++}
++
++static bool mvebu_a3700_comphy_check_mode(int lane,
+ enum phy_mode mode,
+ int submode)
+ {
+@@ -122,7 +1170,7 @@ static int mvebu_a3700_comphy_get_fw_mod
+
+ /* Unused PHY mux value is 0x0 */
+ if (mode == PHY_MODE_INVALID)
+- return -EINVAL;
++ return false;
+
+ for (i = 0; i < n; i++) {
+ if (mvebu_a3700_comphy_modes[i].lane == lane &&
+@@ -132,27 +1180,30 @@ static int mvebu_a3700_comphy_get_fw_mod
+ }
+
+ if (i == n)
+- return -EINVAL;
++ return false;
+
+- return mvebu_a3700_comphy_modes[i].fw_mode;
++ return true;
+ }
+
+ static int mvebu_a3700_comphy_set_mode(struct phy *phy, enum phy_mode mode,
+ int submode)
+ {
+ struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy);
+- int fw_mode;
+-
+- if (submode == PHY_INTERFACE_MODE_1000BASEX)
+- submode = PHY_INTERFACE_MODE_SGMII;
+
+- fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, mode,
+- submode);
+- if (fw_mode < 0) {
++ if (!mvebu_a3700_comphy_check_mode(lane->id, mode, submode)) {
+ dev_err(lane->dev, "invalid COMPHY mode\n");
+- return fw_mode;
++ return -EINVAL;
+ }
+
++ /* Mode cannot be changed while the PHY is powered on */
++ if (phy->power_count &&
++ (lane->mode != mode || lane->submode != submode))
++ return -EBUSY;
++
++ /* If changing mode, ensure reset is called */
++ if (lane->mode != PHY_MODE_INVALID && lane->mode != mode)
++ lane->needs_reset = true;
++
+ /* Just remember the mode, ->power_on() will do the real setup */
+ lane->mode = mode;
+ lane->submode = submode;
+@@ -163,76 +1214,68 @@ static int mvebu_a3700_comphy_set_mode(s
+ static int mvebu_a3700_comphy_power_on(struct phy *phy)
+ {
+ struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy);
+- u32 fw_param;
+- int fw_mode;
+- int fw_port;
+ int ret;
+
+- fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id,
+- lane->mode, lane->submode);
+- if (fw_mode < 0) {
++ if (!mvebu_a3700_comphy_check_mode(lane->id, lane->mode,
++ lane->submode)) {
+ dev_err(lane->dev, "invalid COMPHY mode\n");
+- return fw_mode;
++ return -EINVAL;
++ }
++
++ if (lane->needs_reset) {
++ ret = mvebu_a3700_comphy_reset(phy);
++ if (ret)
++ return ret;
++
++ lane->needs_reset = false;
+ }
+
+ switch (lane->mode) {
+ case PHY_MODE_USB_HOST_SS:
+ dev_dbg(lane->dev, "set lane %d to USB3 host mode\n", lane->id);
+- fw_param = COMPHY_FW_MODE(fw_mode);
+- break;
++ return mvebu_a3700_comphy_usb3_power_on(lane);
+ case PHY_MODE_SATA:
+ dev_dbg(lane->dev, "set lane %d to SATA mode\n", lane->id);
+- fw_param = COMPHY_FW_MODE(fw_mode);
+- break;
++ return mvebu_a3700_comphy_sata_power_on(lane);
+ case PHY_MODE_ETHERNET:
+- fw_port = (lane->id == 0) ? 1 : 0;
+- switch (lane->submode) {
+- case PHY_INTERFACE_MODE_SGMII:
+- dev_dbg(lane->dev, "set lane %d to SGMII mode\n",
+- lane->id);
+- fw_param = COMPHY_FW_NET(fw_mode, fw_port,
+- COMPHY_FW_SPEED_1_25G);
+- break;
+- case PHY_INTERFACE_MODE_2500BASEX:
+- dev_dbg(lane->dev, "set lane %d to 2500BASEX mode\n",
+- lane->id);
+- fw_param = COMPHY_FW_NET(fw_mode, fw_port,
+- COMPHY_FW_SPEED_3_125G);
+- break;
+- default:
+- dev_err(lane->dev, "unsupported PHY submode (%d)\n",
+- lane->submode);
+- return -ENOTSUPP;
+- }
+- break;
++ dev_dbg(lane->dev, "set lane %d to Ethernet mode\n", lane->id);
++ return mvebu_a3700_comphy_ethernet_power_on(lane);
+ case PHY_MODE_PCIE:
+ dev_dbg(lane->dev, "set lane %d to PCIe mode\n", lane->id);
+- fw_param = COMPHY_FW_PCIE(fw_mode, COMPHY_FW_SPEED_5G,
+- phy->attrs.bus_width);
+- break;
++ return mvebu_a3700_comphy_pcie_power_on(lane);
+ default:
+ dev_err(lane->dev, "unsupported PHY mode (%d)\n", lane->mode);
+- return -ENOTSUPP;
++ return -EOPNOTSUPP;
+ }
+-
+- ret = mvebu_a3700_comphy_smc(COMPHY_SIP_POWER_ON, lane->id, fw_param);
+- if (ret == -EOPNOTSUPP)
+- dev_err(lane->dev,
+- "unsupported SMC call, try updating your firmware\n");
+-
+- return ret;
+ }
+
+ static int mvebu_a3700_comphy_power_off(struct phy *phy)
+ {
+ struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy);
+
+- return mvebu_a3700_comphy_smc(COMPHY_SIP_POWER_OFF, lane->id, 0);
++ switch (lane->mode) {
++ case PHY_MODE_USB_HOST_SS:
++ mvebu_a3700_comphy_usb3_power_off(lane);
++ return 0;
++ case PHY_MODE_SATA:
++ mvebu_a3700_comphy_sata_power_off(lane);
++ return 0;
++ case PHY_MODE_ETHERNET:
++ mvebu_a3700_comphy_ethernet_power_off(lane);
++ return 0;
++ case PHY_MODE_PCIE:
++ mvebu_a3700_comphy_pcie_power_off(lane);
++ return 0;
++ default:
++ dev_err(lane->dev, "invalid COMPHY mode\n");
++ return -EINVAL;
++ }
+ }
+
+ static const struct phy_ops mvebu_a3700_comphy_ops = {
+ .power_on = mvebu_a3700_comphy_power_on,
+ .power_off = mvebu_a3700_comphy_power_off,
++ .reset = mvebu_a3700_comphy_reset,
+ .set_mode = mvebu_a3700_comphy_set_mode,
+ .owner = THIS_MODULE,
+ };
+@@ -256,13 +1299,75 @@ static struct phy *mvebu_a3700_comphy_xl
+ return ERR_PTR(-EINVAL);
+ }
+
++ lane->invert_tx = args->args[1] & BIT(0);
++ lane->invert_rx = args->args[1] & BIT(1);
++
+ return phy;
+ }
+
+ static int mvebu_a3700_comphy_probe(struct platform_device *pdev)
+ {
++ struct mvebu_a3700_comphy_priv *priv;
+ struct phy_provider *provider;
+ struct device_node *child;
++ struct resource *res;
++ struct clk *clk;
++ int ret;
++
++ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
++ if (!priv)
++ return -ENOMEM;
++
++ spin_lock_init(&priv->lock);
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "comphy");
++ priv->comphy_regs = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(priv->comphy_regs))
++ return PTR_ERR(priv->comphy_regs);
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
++ "lane1_pcie_gbe");
++ priv->lane1_phy_regs = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(priv->lane1_phy_regs))
++ return PTR_ERR(priv->lane1_phy_regs);
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
++ "lane0_usb3_gbe");
++ priv->lane0_phy_regs = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(priv->lane0_phy_regs))
++ return PTR_ERR(priv->lane0_phy_regs);
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
++ "lane2_sata_usb3");
++ priv->lane2_phy_indirect = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(priv->lane2_phy_indirect))
++ return PTR_ERR(priv->lane2_phy_indirect);
++
++ /*
++ * Driver needs to know if reference xtal clock is 40MHz or 25MHz.
++ * Old DT bindings do not have xtal clk present. So do not fail here
++ * and expects that default 25MHz reference clock is used.
++ */
++ clk = clk_get(&pdev->dev, "xtal");
++ if (IS_ERR(clk)) {
++ if (PTR_ERR(clk) == -EPROBE_DEFER)
++ return -EPROBE_DEFER;
++ dev_warn(&pdev->dev, "missing 'xtal' clk (%ld)\n",
++ PTR_ERR(clk));
++ } else {
++ ret = clk_prepare_enable(clk);
++ if (ret) {
++ dev_warn(&pdev->dev, "enabling xtal clk failed (%d)\n",
++ ret);
++ } else {
++ if (clk_get_rate(clk) == 40000000)
++ priv->xtal_is_40m = true;
++ clk_disable_unprepare(clk);
++ }
++ clk_put(clk);
++ }
++
++ dev_set_drvdata(&pdev->dev, priv);
+
+ for_each_available_child_of_node(pdev->dev.of_node, child) {
+ struct mvebu_a3700_comphy_lane *lane;
+@@ -277,7 +1382,7 @@ static int mvebu_a3700_comphy_probe(stru
+ continue;
+ }
+
+- if (lane_id >= MVEBU_A3700_COMPHY_LANES) {
++ if (lane_id >= 3) {
+ dev_err(&pdev->dev, "invalid 'reg' property\n");
+ continue;
+ }
+@@ -295,11 +1400,21 @@ static int mvebu_a3700_comphy_probe(stru
+ return PTR_ERR(phy);
+ }
+
++ lane->priv = priv;
+ lane->dev = &pdev->dev;
+ lane->mode = PHY_MODE_INVALID;
+ lane->submode = PHY_INTERFACE_MODE_NA;
+ lane->id = lane_id;
++ lane->invert_tx = false;
++ lane->invert_rx = false;
+ phy_set_drvdata(phy, lane);
++
++ /*
++ * To avoid relying on the bootloader/firmware configuration,
++ * power off all comphys.
++ */
++ mvebu_a3700_comphy_reset(phy);
++ lane->needs_reset = false;
+ }
+
+ provider = devm_of_phy_provider_register(&pdev->dev,
+@@ -323,5 +1438,7 @@ static struct platform_driver mvebu_a370
+ module_platform_driver(mvebu_a3700_comphy_driver);
+
+ MODULE_AUTHOR("Miquèl Raynal <miquel.raynal@bootlin.com>");
++MODULE_AUTHOR("Pali Rohár <pali@kernel.org>");
++MODULE_AUTHOR("Marek Behún <kabel@kernel.org>");
+ MODULE_DESCRIPTION("Common PHY driver for A3700");
+ MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 00:19:37 +0000