--- /dev/null
+From patchwork Tue Feb 6 19:47:51 2024
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+X-Patchwork-Submitter: Eric Woudstra <ericwouds@gmail.com>
+X-Patchwork-Id: 13547762
+X-Patchwork-Delegate: kuba@kernel.org
+From: Eric Woudstra <ericwouds@gmail.com>
+To: "David S. Miller" <davem@davemloft.net>,
+ Eric Dumazet <edumazet@google.com>,
+ Jakub Kicinski <kuba@kernel.org>,
+ Paolo Abeni <pabeni@redhat.com>,
+ Rob Herring <robh+dt@kernel.org>,
+ Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
+ Conor Dooley <conor+dt@kernel.org>,
+ Andrew Lunn <andrew@lunn.ch>,
+ Heiner Kallweit <hkallweit1@gmail.com>,
+ Russell King <linux@armlinux.org.uk>,
+ Matthias Brugger <matthias.bgg@gmail.com>,
+ AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
+ "Frank Wunderlich" <frank-w@public-files.de>,
+ Daniel Golle <daniel@makrotopia.org>,
+ Lucien Jheng <lucien.jheng@airoha.com>,
+ Zhi-Jun You <hujy652@protonmail.com>
+Cc: netdev@vger.kernel.org,
+ devicetree@vger.kernel.org,
+ Eric Woudstra <ericwouds@gmail.com>
+Subject: [PATCH net-next 2/2] net: phy: air_en8811h: Add the Airoha EN8811H
+ PHY driver
+Date: Tue, 6 Feb 2024 20:47:51 +0100
+Message-ID: <20240206194751.1901802-3-ericwouds@gmail.com>
+X-Mailer: git-send-email 2.42.1
+In-Reply-To: <20240206194751.1901802-1-ericwouds@gmail.com>
+References: <20240206194751.1901802-1-ericwouds@gmail.com>
+Precedence: bulk
+X-Mailing-List: netdev@vger.kernel.org
+List-Id: <netdev.vger.kernel.org>
+List-Subscribe: <mailto:netdev+subscribe@vger.kernel.org>
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+MIME-Version: 1.0
+X-Patchwork-Delegate: kuba@kernel.org
+
+* Source originated from airoha's en8811h v1.2.1 driver
+ * Moved air_en8811h.h to air_en8811h.c
+ * Removed air_pbus_reg_write() as it writes to another device on mdio-bus
+ * Load firmware from /lib/firmware/airoha/ instead of /lib/firmware/
+ * Added .get_rate_matching()
+ * Use generic phy_read/write() and phy_read/write_mmd()
+ * Edited .get_features() to use generic C45 functions
+ * Edited .config_aneg() and .read_status() to use a mix of generic C22/C45
+ * Use led handling functions from mediatek-ge-soc.c
+ * Simplified led handling by storing led rules
+ * Cleanup macro definitions
+ * Cleanup code to pass checkpatch.pl
+ * General code cleanup
+
+Changes from original RFC patch:
+
+ * Use the correct order in Kconfig and Makefile
+ * Change some register naming to correspond with datasheet
+ * Use phy_driver .read_page() and .write_page()
+ * Use module_phy_driver()
+ * Use get_unaligned_le16() instead of macro
+ * In .config_aneg() and .read_status() use genphy_xxx() C22
+ * Use another vendor register to read real speed
+ * Load firmware only once and store firmware version
+ * Apply 2.5G LPA work-around (firmware before 24011202)
+ * Read 2.5G LPA from vendor register (firmware 24011202 and later)
+
+Changes to be committed:
+ modified: drivers/net/phy/Kconfig
+ modified: drivers/net/phy/Makefile
+ new file: drivers/net/phy/air_en8811h.c
+
+Signed-off-by: Eric Woudstra <ericwouds@gmail.com>
+---
+ drivers/net/phy/Kconfig | 5 +
+ drivers/net/phy/Makefile | 1 +
+ drivers/net/phy/air_en8811h.c | 1006 +++++++++++++++++++++++++++++++++
+ 3 files changed, 1012 insertions(+)
+ create mode 100644 drivers/net/phy/air_en8811h.c
+
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -69,6 +69,11 @@ config SFP
+
+ comment "MII PHY device drivers"
+
++config AIR_EN8811H_PHY
++ tristate "Airoha EN8811H 2.5 Gigabit PHY"
++ help
++ Currently supports the Airoha EN8811H PHY.
++
+ config AMD_PHY
+ tristate "AMD and Altima PHYs"
+ help
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -32,6 +32,7 @@ obj-y += $(sfp-obj-y) $(sfp-obj-m)
+
+ obj-$(CONFIG_ADIN_PHY) += adin.o
+ obj-$(CONFIG_ADIN1100_PHY) += adin1100.o
++obj-$(CONFIG_AIR_EN8811H_PHY) += air_en8811h.o
+ obj-$(CONFIG_AMD_PHY) += amd.o
+ obj-$(CONFIG_AQUANTIA_PHY) += aquantia/
+ obj-$(CONFIG_AX88796B_PHY) += ax88796b.o
+--- /dev/null
++++ b/drivers/net/phy/air_en8811h.c
+@@ -0,0 +1,1006 @@
++// SPDX-License-Identifier: GPL-2.0+
++/*
++ * Driver for Airoha Ethernet PHYs
++ *
++ * Currently supporting the EN8811H.
++ *
++ * Limitations of the EN8811H:
++ * - Only full duplex supported
++ * - Forced speed (AN off) is not supported by hardware (100Mbps)
++ *
++ * Source originated from airoha's en8811h.c and en8811h.h v1.2.1
++ *
++ * Copyright (C) 2023 Airoha Technology Corp.
++ */
++
++#include <linux/phy.h>
++#include <linux/firmware.h>
++#include <linux/property.h>
++#include <asm/unaligned.h>
++
++#define EN8811H_PHY_ID 0x03a2a411
++
++#define EN8811H_MD32_DM "airoha/EthMD32.dm.bin"
++#define EN8811H_MD32_DSP "airoha/EthMD32.DSP.bin"
++
++#define AIR_FW_ADDR_DM 0x00000000
++#define AIR_FW_ADDR_DSP 0x00100000
++
++/* u32 (DWORD) component macros */
++#define LOWORD(d) ((u16)(u32)(d))
++#define HIWORD(d) ((u16)(((u32)(d)) >> 16))
++
++/* MII Registers */
++#define AIR_AUX_CTRL_STATUS 0x1d
++#define AIR_AUX_CTRL_STATUS_SPEED_MASK GENMASK(4, 2)
++#define AIR_AUX_CTRL_STATUS_SPEED_100 0x4
++#define AIR_AUX_CTRL_STATUS_SPEED_1000 0x8
++#define AIR_AUX_CTRL_STATUS_SPEED_2500 0xc
++
++#define AIR_EXT_PAGE_ACCESS 0x1f
++#define AIR_PHY_PAGE_STANDARD 0x0000
++#define AIR_PHY_PAGE_EXTENDED_4 0x0004
++
++/* MII Registers Page 4*/
++#define AIR_PBUS_MODE 0x10
++#define AIR_PBUS_MODE_ADDR_FIXED 0x0000
++#define AIR_PBUS_MODE_ADDR_INCR BIT(15)
++#define AIR_PBUS_WR_ADDR_HIGH 0x11
++#define AIR_PBUS_WR_ADDR_LOW 0x12
++#define AIR_PBUS_WR_DATA_HIGH 0x13
++#define AIR_PBUS_WR_DATA_LOW 0x14
++#define AIR_PBUS_RD_ADDR_HIGH 0x15
++#define AIR_PBUS_RD_ADDR_LOW 0x16
++#define AIR_PBUS_RD_DATA_HIGH 0x17
++#define AIR_PBUS_RD_DATA_LOW 0x18
++
++/* Registers on MDIO_MMD_VEND1 */
++#define EN8811H_PHY_FW_STATUS 0x8009
++#define EN8811H_PHY_READY 0x02
++
++#define AIR_PHY_HOST_CMD_1 0x800c
++#define AIR_PHY_HOST_CMD_1_MODE1 0x0
++#define AIR_PHY_HOST_CMD_2 0x800d
++#define AIR_PHY_HOST_CMD_2_MODE1 0x0
++#define AIR_PHY_HOST_CMD_3 0x800e
++#define AIR_PHY_HOST_CMD_3_MODE1 0x1101
++#define AIR_PHY_HOST_CMD_3_DOCMD 0x1100
++#define AIR_PHY_HOST_CMD_4 0x800f
++#define AIR_PHY_HOST_CMD_4_MODE1 0x0002
++#define AIR_PHY_HOST_CMD_4_INTCLR 0x00e4
++
++/* Registers on MDIO_MMD_VEND2 */
++#define AIR_PHY_LED_BCR 0x021
++#define AIR_PHY_LED_BCR_MODE_MASK GENMASK(1, 0)
++#define AIR_PHY_LED_BCR_TIME_TEST BIT(2)
++#define AIR_PHY_LED_BCR_CLK_EN BIT(3)
++#define AIR_PHY_LED_BCR_EXT_CTRL BIT(15)
++
++#define AIR_PHY_LED_DUR_ON 0x022
++
++#define AIR_PHY_LED_DUR_BLINK 0x023
++
++#define AIR_PHY_LED_ON(i) (0x024 + ((i) * 2))
++#define AIR_PHY_LED_ON_MASK (GENMASK(6, 0) | BIT(8))
++#define AIR_PHY_LED_ON_LINK1000 BIT(0)
++#define AIR_PHY_LED_ON_LINK100 BIT(1)
++#define AIR_PHY_LED_ON_LINK10 BIT(2)
++#define AIR_PHY_LED_ON_LINKDOWN BIT(3)
++#define AIR_PHY_LED_ON_FDX BIT(4) /* Full duplex */
++#define AIR_PHY_LED_ON_HDX BIT(5) /* Half duplex */
++#define AIR_PHY_LED_ON_FORCE_ON BIT(6)
++#define AIR_PHY_LED_ON_LINK2500 BIT(8)
++#define AIR_PHY_LED_ON_POLARITY BIT(14)
++#define AIR_PHY_LED_ON_ENABLE BIT(15)
++
++#define AIR_PHY_LED_BLINK(i) (0x025 + ((i) * 2))
++#define AIR_PHY_LED_BLINK_1000TX BIT(0)
++#define AIR_PHY_LED_BLINK_1000RX BIT(1)
++#define AIR_PHY_LED_BLINK_100TX BIT(2)
++#define AIR_PHY_LED_BLINK_100RX BIT(3)
++#define AIR_PHY_LED_BLINK_10TX BIT(4)
++#define AIR_PHY_LED_BLINK_10RX BIT(5)
++#define AIR_PHY_LED_BLINK_COLLISION BIT(6)
++#define AIR_PHY_LED_BLINK_RX_CRC_ERR BIT(7)
++#define AIR_PHY_LED_BLINK_RX_IDLE_ERR BIT(8)
++#define AIR_PHY_LED_BLINK_FORCE_BLINK BIT(9)
++#define AIR_PHY_LED_BLINK_2500TX BIT(10)
++#define AIR_PHY_LED_BLINK_2500RX BIT(11)
++
++/* Registers on BUCKPBUS */
++#define EN8811H_2P5G_LPA 0x3b30
++#define EN8811H_2P5G_LPA_2P5G BIT(0)
++
++#define EN8811H_FW_VERSION 0x3b3c
++
++#define EN8811H_POLARITY 0xca0f8
++#define EN8811H_POLARITY_TX_NORMAL BIT(0)
++#define EN8811H_POLARITY_RX_REVERSE BIT(1)
++
++#define EN8811H_GPIO_OUTPUT 0xcf8b8
++#define EN8811H_GPIO_OUTPUT_345 (BIT(3) | BIT(4) | BIT(5))
++
++#define EN8811H_FW_CTRL_1 0x0f0018
++#define EN8811H_FW_CTRL_1_START 0x0
++#define EN8811H_FW_CTRL_1_FINISH 0x1
++#define EN8811H_FW_CTRL_2 0x800000
++#define EN8811H_FW_CTRL_2_LOADING BIT(11)
++
++#define EN8811H_LED_COUNT 3
++
++/* GPIO5 <-> BASE_T_LED0
++ * GPIO4 <-> BASE_T_LED1
++ * GPIO3 <-> BASE_T_LED2
++ *
++ * Default setup suitable for 2 leds connected:
++ * 100M link up triggers led0, only led0 blinking on traffic
++ * 1000M link up triggers led1, only led1 blinking on traffic
++ * 2500M link up triggers led0 and led1, both blinking on traffic
++ * Also suitable for 1 led connected:
++ * any link up triggers led2
++ */
++#define AIR_DEFAULT_TRIGGER_LED0 (BIT(TRIGGER_NETDEV_LINK_2500) | \
++ BIT(TRIGGER_NETDEV_LINK_100) | \
++ BIT(TRIGGER_NETDEV_RX) | \
++ BIT(TRIGGER_NETDEV_TX))
++#define AIR_DEFAULT_TRIGGER_LED1 (BIT(TRIGGER_NETDEV_LINK_2500) | \
++ BIT(TRIGGER_NETDEV_LINK_1000) | \
++ BIT(TRIGGER_NETDEV_RX) | \
++ BIT(TRIGGER_NETDEV_TX))
++#define AIR_DEFAULT_TRIGGER_LED2 BIT(TRIGGER_NETDEV_LINK)
++
++struct led {
++ unsigned long rules;
++ unsigned long state;
++};
++
++struct en8811h_priv {
++ u32 firmware_version;
++ struct led led[EN8811H_LED_COUNT];
++};
++
++enum {
++ AIR_PHY_LED_STATE_FORCE_ON,
++ AIR_PHY_LED_STATE_FORCE_BLINK,
++};
++
++enum {
++ AIR_PHY_LED_DUR_BLINK_32M,
++ AIR_PHY_LED_DUR_BLINK_64M,
++ AIR_PHY_LED_DUR_BLINK_128M,
++ AIR_PHY_LED_DUR_BLINK_256M,
++ AIR_PHY_LED_DUR_BLINK_512M,
++ AIR_PHY_LED_DUR_BLINK_1024M,
++};
++
++enum {
++ AIR_LED_DISABLE,
++ AIR_LED_ENABLE,
++};
++
++enum {
++ AIR_ACTIVE_LOW,
++ AIR_ACTIVE_HIGH,
++};
++
++enum {
++ AIR_LED_MODE_DISABLE,
++ AIR_LED_MODE_USER_DEFINE,
++};
++
++#define AIR_PHY_LED_DUR_UNIT 1024
++#define AIR_PHY_LED_DUR (AIR_PHY_LED_DUR_UNIT << AIR_PHY_LED_DUR_BLINK_64M)
++
++static const unsigned long en8811h_led_trig = (BIT(TRIGGER_NETDEV_FULL_DUPLEX) |
++ BIT(TRIGGER_NETDEV_LINK) |
++ BIT(TRIGGER_NETDEV_LINK_10) |
++ BIT(TRIGGER_NETDEV_LINK_100) |
++ BIT(TRIGGER_NETDEV_LINK_1000) |
++ BIT(TRIGGER_NETDEV_LINK_2500) |
++ BIT(TRIGGER_NETDEV_RX) |
++ BIT(TRIGGER_NETDEV_TX));
++
++static int air_phy_read_page(struct phy_device *phydev)
++{
++ return __phy_read(phydev, AIR_EXT_PAGE_ACCESS);
++}
++
++static int air_phy_write_page(struct phy_device *phydev, int page)
++{
++ return __phy_write(phydev, AIR_EXT_PAGE_ACCESS, page);
++}
++
++static int __air_buckpbus_reg_write(struct phy_device *phydev,
++ u32 pbus_address, u32 pbus_data)
++{
++ int ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_MODE, AIR_PBUS_MODE_ADDR_FIXED);
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_HIGH, HIWORD(pbus_address));
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_LOW, LOWORD(pbus_address));
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_WR_DATA_HIGH, HIWORD(pbus_data));
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_WR_DATA_LOW, LOWORD(pbus_data));
++ if (ret < 0)
++ return ret;
++
++ return 0;
++}
++
++static int air_buckpbus_reg_write(struct phy_device *phydev,
++ u32 pbus_address, u32 pbus_data)
++{
++ int ret, saved_page;
++
++ saved_page = phy_select_page(phydev, AIR_PHY_PAGE_EXTENDED_4);
++
++ ret = __air_buckpbus_reg_write(phydev, pbus_address, pbus_data);
++ if (ret < 0)
++ phydev_err(phydev, "%s 0x%08x failed: %d\n", __func__,
++ pbus_address, ret);
++
++ return phy_restore_page(phydev, saved_page, ret);
++;
++}
++
++static int __air_buckpbus_reg_read(struct phy_device *phydev,
++ u32 pbus_address, u32 *pbus_data)
++{
++ int pbus_data_low, pbus_data_high;
++ int ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_MODE, AIR_PBUS_MODE_ADDR_FIXED);
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_RD_ADDR_HIGH, HIWORD(pbus_address));
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_RD_ADDR_LOW, LOWORD(pbus_address));
++ if (ret < 0)
++ return ret;
++
++ pbus_data_high = __phy_read(phydev, AIR_PBUS_RD_DATA_HIGH);
++ if (pbus_data_high < 0)
++ return ret;
++
++ pbus_data_low = __phy_read(phydev, AIR_PBUS_RD_DATA_LOW);
++ if (pbus_data_low < 0)
++ return ret;
++
++ *pbus_data = (u16)pbus_data_low | ((u32)(u16)pbus_data_high << 16);
++ return 0;
++}
++
++static int air_buckpbus_reg_read(struct phy_device *phydev,
++ u32 pbus_address, u32 *pbus_data)
++{
++ int ret, saved_page;
++
++ saved_page = phy_select_page(phydev, AIR_PHY_PAGE_EXTENDED_4);
++
++ ret = __air_buckpbus_reg_read(phydev, pbus_address, pbus_data);
++ if (ret < 0)
++ phydev_err(phydev, "%s 0x%08x failed: %d\n", __func__,
++ pbus_address, ret);
++
++ return phy_restore_page(phydev, saved_page, ret);
++}
++
++static int __air_write_buf(struct phy_device *phydev, u32 address,
++ const struct firmware *fw)
++{
++ unsigned int offset;
++ int ret;
++ u16 val;
++
++ ret = __phy_write(phydev, AIR_PBUS_MODE, AIR_PBUS_MODE_ADDR_INCR);
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_HIGH, HIWORD(address));
++ if (ret < 0)
++ return ret;
++
++ ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_LOW, LOWORD(address));
++ if (ret < 0)
++ return ret;
++
++ for (offset = 0; offset < fw->size; offset += 4) {
++ val = get_unaligned_le16(&fw->data[offset + 2]);
++ ret = __phy_write(phydev, AIR_PBUS_WR_DATA_HIGH, val);
++ if (ret < 0)
++ return ret;
++
++ val = get_unaligned_le16(&fw->data[offset]);
++ ret = __phy_write(phydev, AIR_PBUS_WR_DATA_LOW, val);
++ if (ret < 0)
++ return ret;
++ }
++
++ return 0;
++}
++
++static int air_write_buf(struct phy_device *phydev, u32 address,
++ const struct firmware *fw)
++{
++ int ret, saved_page;
++
++ saved_page = phy_select_page(phydev, AIR_PHY_PAGE_EXTENDED_4);
++
++ ret = __air_write_buf(phydev, address, fw);
++ if (ret < 0)
++ phydev_err(phydev, "%s 0x%08x failed: %d\n", __func__,
++ address, ret);
++
++ return phy_restore_page(phydev, saved_page, ret);
++}
++
++static int en8811h_load_firmware(struct phy_device *phydev)
++{
++ struct device *dev = &phydev->mdio.dev;
++ const struct firmware *fw1, *fw2;
++ u32 pbus_value;
++ int ret;
++
++ ret = request_firmware_direct(&fw1, EN8811H_MD32_DM, dev);
++ if (ret < 0)
++ return ret;
++
++ ret = request_firmware_direct(&fw2, EN8811H_MD32_DSP, dev);
++ if (ret < 0)
++ goto en8811h_load_firmware_rel1;
++
++ ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
++ EN8811H_FW_CTRL_1_START);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++
++ ret = air_buckpbus_reg_read(phydev, EN8811H_FW_CTRL_2, &pbus_value);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++ pbus_value |= EN8811H_FW_CTRL_2_LOADING;
++ ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_2, pbus_value);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++
++ ret = air_write_buf(phydev, AIR_FW_ADDR_DM, fw1);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++
++ ret = air_write_buf(phydev, AIR_FW_ADDR_DSP, fw2);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++
++ ret = air_buckpbus_reg_read(phydev, EN8811H_FW_CTRL_2, &pbus_value);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++ pbus_value &= ~EN8811H_FW_CTRL_2_LOADING;
++ ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_2, pbus_value);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++
++ ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
++ EN8811H_FW_CTRL_1_FINISH);
++ if (ret < 0)
++ goto en8811h_load_firmware_out;
++
++ ret = 0;
++
++en8811h_load_firmware_out:
++ release_firmware(fw2);
++
++en8811h_load_firmware_rel1:
++ release_firmware(fw1);
++
++ if (ret < 0)
++ phydev_err(phydev, "Load firmware failed: %d\n", ret);
++
++ return ret;
++}
++
++static int en8811h_restart_host(struct phy_device *phydev)
++{
++ int ret;
++
++ ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
++ EN8811H_FW_CTRL_1_START);
++ if (ret < 0)
++ return ret;
++
++ return air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
++ EN8811H_FW_CTRL_1_FINISH);
++}
++
++static int air_hw_led_on_set(struct phy_device *phydev, u8 index, bool on)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ bool changed;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ if (on)
++ changed = !test_and_set_bit(AIR_PHY_LED_STATE_FORCE_ON,
++ &priv->led[index].state);
++ else
++ changed = !!test_and_clear_bit(AIR_PHY_LED_STATE_FORCE_ON,
++ &priv->led[index].state);
++
++ changed |= (priv->led[index].rules != 0);
++
++ if (changed)
++ return phy_modify_mmd(phydev, MDIO_MMD_VEND2,
++ AIR_PHY_LED_ON(index),
++ AIR_PHY_LED_ON_MASK,
++ on ? AIR_PHY_LED_ON_FORCE_ON : 0);
++
++ return 0;
++}
++
++static int air_hw_led_blink_set(struct phy_device *phydev, u8 index,
++ bool blinking)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ bool changed;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ if (blinking)
++ changed = !test_and_set_bit(AIR_PHY_LED_STATE_FORCE_BLINK,
++ &priv->led[index].state);
++ else
++ changed = !!test_and_clear_bit(AIR_PHY_LED_STATE_FORCE_BLINK,
++ &priv->led[index].state);
++
++ changed |= (priv->led[index].rules != 0);
++
++ if (changed)
++ return phy_write_mmd(phydev, MDIO_MMD_VEND2,
++ AIR_PHY_LED_BLINK(index),
++ blinking ?
++ AIR_PHY_LED_BLINK_FORCE_BLINK : 0);
++ else
++ return 0;
++}
++
++static int air_led_blink_set(struct phy_device *phydev, u8 index,
++ unsigned long *delay_on,
++ unsigned long *delay_off)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ bool blinking = false;
++ int err;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ if (delay_on && delay_off && (*delay_on > 0) && (*delay_off > 0)) {
++ blinking = true;
++ *delay_on = 50;
++ *delay_off = 50;
++ }
++
++ err = air_hw_led_blink_set(phydev, index, blinking);
++ if (err)
++ return err;
++
++ /* led-blink set, so switch led-on off */
++ err = air_hw_led_on_set(phydev, index, false);
++ if (err)
++ return err;
++
++ /* hw-control is off*/
++ if (!!test_bit(AIR_PHY_LED_STATE_FORCE_BLINK, &priv->led[index].state))
++ priv->led[index].rules = 0;
++
++ return 0;
++}
++
++static int air_led_brightness_set(struct phy_device *phydev, u8 index,
++ enum led_brightness value)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ int err;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ /* led-on set, so switch led-blink off */
++ err = air_hw_led_blink_set(phydev, index, false);
++ if (err)
++ return err;
++
++ err = air_hw_led_on_set(phydev, index, (value != LED_OFF));
++ if (err)
++ return err;
++
++ /* hw-control is off */
++ if (!!test_bit(AIR_PHY_LED_STATE_FORCE_ON, &priv->led[index].state))
++ priv->led[index].rules = 0;
++
++ return 0;
++}
++
++static int air_led_hw_control_get(struct phy_device *phydev, u8 index,
++ unsigned long *rules)
++{
++ struct en8811h_priv *priv = phydev->priv;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ *rules = priv->led[index].rules;
++
++ return 0;
++};
++
++static int air_led_hw_control_set(struct phy_device *phydev, u8 index,
++ unsigned long rules)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ u16 on = 0, blink = 0;
++ int ret;
++
++ priv->led[index].rules = rules;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ if (rules & (BIT(TRIGGER_NETDEV_LINK_10) | BIT(TRIGGER_NETDEV_LINK))) {
++ on |= AIR_PHY_LED_ON_LINK10;
++ if (rules & BIT(TRIGGER_NETDEV_RX))
++ blink |= AIR_PHY_LED_BLINK_10RX;
++ if (rules & BIT(TRIGGER_NETDEV_TX))
++ blink |= AIR_PHY_LED_BLINK_10TX;
++ }
++
++ if (rules & (BIT(TRIGGER_NETDEV_LINK_100) | BIT(TRIGGER_NETDEV_LINK))) {
++ on |= AIR_PHY_LED_ON_LINK100;
++ if (rules & BIT(TRIGGER_NETDEV_RX))
++ blink |= AIR_PHY_LED_BLINK_100RX;
++ if (rules & BIT(TRIGGER_NETDEV_TX))
++ blink |= AIR_PHY_LED_BLINK_100TX;
++ }
++
++ if (rules & (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK))) {
++ on |= AIR_PHY_LED_ON_LINK1000;
++ if (rules & BIT(TRIGGER_NETDEV_RX))
++ blink |= AIR_PHY_LED_BLINK_1000RX;
++ if (rules & BIT(TRIGGER_NETDEV_TX))
++ blink |= AIR_PHY_LED_BLINK_1000TX;
++ }
++
++ if (rules & (BIT(TRIGGER_NETDEV_LINK_2500) | BIT(TRIGGER_NETDEV_LINK))) {
++ on |= AIR_PHY_LED_ON_LINK2500;
++ if (rules & BIT(TRIGGER_NETDEV_RX))
++ blink |= AIR_PHY_LED_BLINK_2500RX;
++ if (rules & BIT(TRIGGER_NETDEV_TX))
++ blink |= AIR_PHY_LED_BLINK_2500TX;
++ }
++
++ if (on == 0) {
++ if (rules & BIT(TRIGGER_NETDEV_RX)) {
++ blink |= AIR_PHY_LED_BLINK_10RX |
++ AIR_PHY_LED_BLINK_100RX |
++ AIR_PHY_LED_BLINK_1000RX |
++ AIR_PHY_LED_BLINK_2500RX;
++ }
++ if (rules & BIT(TRIGGER_NETDEV_TX)) {
++ blink |= AIR_PHY_LED_BLINK_10TX |
++ AIR_PHY_LED_BLINK_100TX |
++ AIR_PHY_LED_BLINK_1000TX |
++ AIR_PHY_LED_BLINK_2500TX;
++ }
++ }
++
++ if (rules & BIT(TRIGGER_NETDEV_FULL_DUPLEX))
++ on |= AIR_PHY_LED_ON_FDX;
++
++ if (rules & BIT(TRIGGER_NETDEV_HALF_DUPLEX))
++ on |= AIR_PHY_LED_ON_HDX;
++
++ if (blink || on) {
++ /* switch hw-control on, so led-on and led-blink are off */
++ clear_bit(AIR_PHY_LED_STATE_FORCE_ON, &priv->led[index].state);
++ clear_bit(AIR_PHY_LED_STATE_FORCE_BLINK, &priv->led[index].state);
++ } else {
++ priv->led[index].rules = 0;
++ }
++
++ ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_ON(index),
++ AIR_PHY_LED_ON_MASK, on);
++
++ if (ret < 0)
++ return ret;
++
++ return phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_BLINK(index),
++ blink);
++};
++
++static int air_led_init(struct phy_device *phydev, u8 index, u8 state, u8 pol)
++{
++ int cl45_data;
++ int err;
++
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ cl45_data = phy_read_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_ON(index));
++ if (cl45_data < 0)
++ return cl45_data;
++
++ if (state == AIR_LED_ENABLE)
++ cl45_data |= AIR_PHY_LED_ON_ENABLE;
++ else
++ cl45_data &= ~AIR_PHY_LED_ON_ENABLE;
++
++ if (pol == AIR_ACTIVE_HIGH)
++ cl45_data |= AIR_PHY_LED_ON_POLARITY;
++ else
++ cl45_data &= ~AIR_PHY_LED_ON_POLARITY;
++
++ err = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_ON(index),
++ cl45_data);
++ if (err < 0)
++ return err;
++
++ return 0;
++}
++
++static int air_leds_init(struct phy_device *phydev, int num, int dur, int mode)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ int cl45_data = dur;
++ int ret, i;
++
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_DUR_BLINK,
++ cl45_data);
++ if (ret < 0)
++ return ret;
++
++ cl45_data >>= 1;
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_DUR_ON,
++ cl45_data);
++ if (ret < 0)
++ return ret;
++
++ cl45_data = phy_read_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_BCR);
++ if (cl45_data < 0)
++ return cl45_data;
++
++ switch (mode) {
++ case AIR_LED_MODE_DISABLE:
++ cl45_data &= ~AIR_PHY_LED_BCR_EXT_CTRL;
++ cl45_data &= ~AIR_PHY_LED_BCR_MODE_MASK;
++ break;
++ case AIR_LED_MODE_USER_DEFINE:
++ cl45_data |= AIR_PHY_LED_BCR_EXT_CTRL;
++ cl45_data |= AIR_PHY_LED_BCR_CLK_EN;
++ break;
++ default:
++ phydev_err(phydev, "LED mode %d is not supported\n", mode);
++ return -EINVAL;
++ }
++
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_BCR, cl45_data);
++ if (ret < 0)
++ return ret;
++
++ for (i = 0; i < num; ++i) {
++ ret = air_led_init(phydev, i, AIR_LED_ENABLE, AIR_ACTIVE_HIGH);
++ if (ret < 0) {
++ phydev_err(phydev, "LED%d init failed: %d\n", i, ret);
++ return ret;
++ }
++ air_led_hw_control_set(phydev, i, priv->led[i].rules);
++ }
++
++ return 0;
++}
++
++static int en8811h_led_hw_is_supported(struct phy_device *phydev, u8 index,
++ unsigned long rules)
++{
++ if (index >= EN8811H_LED_COUNT)
++ return -EINVAL;
++
++ /* All combinations of the supported triggers are allowed */
++ if (rules & ~en8811h_led_trig)
++ return -EOPNOTSUPP;
++
++ return 0;
++};
++
++static int en8811h_probe(struct phy_device *phydev)
++{
++ struct en8811h_priv *priv;
++
++ priv = devm_kzalloc(&phydev->mdio.dev, sizeof(struct en8811h_priv),
++ GFP_KERNEL);
++ if (!priv)
++ return -ENOMEM;
++
++ priv->led[0].rules = AIR_DEFAULT_TRIGGER_LED0;
++ priv->led[1].rules = AIR_DEFAULT_TRIGGER_LED1;
++ priv->led[2].rules = AIR_DEFAULT_TRIGGER_LED2;
++
++ phydev->priv = priv;
++
++ /* MDIO_DEVS1/2 empty, so set mmds_present bits here */
++ phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
++
++ return 0;
++}
++
++static int en8811h_config_init(struct phy_device *phydev)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ struct device *dev = &phydev->mdio.dev;
++ int ret, pollret, reg_value;
++ u32 pbus_value;
++
++ if (!priv->firmware_version)
++ ret = en8811h_load_firmware(phydev);
++ else
++ ret = en8811h_restart_host(phydev);
++ if (ret < 0)
++ return ret;
++
++ /* Because of mdio-lock, may have to wait for multiple loads */
++ pollret = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
++ EN8811H_PHY_FW_STATUS, reg_value,
++ reg_value == EN8811H_PHY_READY,
++ 20000, 7500000, true);
++
++ ret = air_buckpbus_reg_read(phydev, EN8811H_FW_VERSION, &pbus_value);
++ if (ret < 0)
++ return ret;
++
++ if (pollret || !pbus_value) {
++ phydev_err(phydev, "Firmware not ready: 0x%x\n", reg_value);
++ return -ENODEV;
++ }
++
++ if (!priv->firmware_version) {
++ phydev_info(phydev, "MD32 firmware version: %08x\n", pbus_value);
++ priv->firmware_version = pbus_value;
++ }
++
++ /* Select mode 1, the only mode supported */
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_HOST_CMD_1,
++ AIR_PHY_HOST_CMD_1_MODE1);
++ if (ret < 0)
++ return ret;
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_HOST_CMD_2,
++ AIR_PHY_HOST_CMD_2_MODE1);
++ if (ret < 0)
++ return ret;
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_HOST_CMD_3,
++ AIR_PHY_HOST_CMD_3_MODE1);
++ if (ret < 0)
++ return ret;
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_HOST_CMD_4,
++ AIR_PHY_HOST_CMD_4_MODE1);
++ if (ret < 0)
++ return ret;
++
++ /* Serdes polarity */
++ ret = air_buckpbus_reg_read(phydev, EN8811H_POLARITY, &pbus_value);
++ if (ret < 0)
++ return ret;
++ if (device_property_read_bool(dev, "airoha,pnswap-rx"))
++ pbus_value |= EN8811H_POLARITY_RX_REVERSE;
++ else
++ pbus_value &= ~EN8811H_POLARITY_RX_REVERSE;
++ if (device_property_read_bool(dev, "airoha,pnswap-tx"))
++ pbus_value &= ~EN8811H_POLARITY_TX_NORMAL;
++ else
++ pbus_value |= EN8811H_POLARITY_TX_NORMAL;
++ ret = air_buckpbus_reg_write(phydev, EN8811H_POLARITY, pbus_value);
++ if (ret < 0)
++ return ret;
++
++ ret = air_leds_init(phydev, EN8811H_LED_COUNT, AIR_PHY_LED_DUR,
++ AIR_LED_MODE_USER_DEFINE);
++ if (ret < 0) {
++ phydev_err(phydev, "Failed to initialize leds: %d\n", ret);
++ return ret;
++ }
++
++ ret = air_buckpbus_reg_read(phydev, EN8811H_GPIO_OUTPUT, &pbus_value);
++ if (ret < 0)
++ return ret;
++ pbus_value |= EN8811H_GPIO_OUTPUT_345;
++ ret = air_buckpbus_reg_write(phydev, EN8811H_GPIO_OUTPUT, pbus_value);
++ if (ret < 0)
++ return ret;
++
++ return 0;
++}
++
++static int en8811h_get_features(struct phy_device *phydev)
++{
++ linkmode_set_bit_array(phy_basic_ports_array,
++ ARRAY_SIZE(phy_basic_ports_array),
++ phydev->supported);
++
++ return genphy_c45_pma_read_abilities(phydev);
++}
++
++static int en8811h_get_rate_matching(struct phy_device *phydev,
++ phy_interface_t iface)
++{
++ return RATE_MATCH_PAUSE;
++}
++
++static int en8811h_config_aneg(struct phy_device *phydev)
++{
++ bool changed = false;
++ int err, val;
++
++ val = 0;
++ if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++ phydev->advertising))
++ val |= MDIO_AN_10GBT_CTRL_ADV2_5G;
++ err = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
++ MDIO_AN_10GBT_CTRL_ADV2_5G, val);
++ if (err < 0)
++ return err;
++ if (err > 0)
++ changed = true;
++
++ return __genphy_config_aneg(phydev, changed);
++}
++
++static int en8811h_read_status(struct phy_device *phydev)
++{
++ struct en8811h_priv *priv = phydev->priv;
++ u32 pbus_value;
++ int ret, val;
++
++ ret = genphy_update_link(phydev);
++ if (ret)
++ return ret;
++
++ phydev->master_slave_get = MASTER_SLAVE_CFG_UNSUPPORTED;
++ phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
++ phydev->speed = SPEED_UNKNOWN;
++ phydev->duplex = DUPLEX_UNKNOWN;
++ phydev->pause = 0;
++ phydev->asym_pause = 0;
++
++ ret = genphy_read_master_slave(phydev);
++ if (ret < 0)
++ return ret;
++
++ ret = genphy_read_lpa(phydev);
++ if (ret < 0)
++ return ret;
++
++ /* Get link partner 2.5GBASE-T ability from vendor register */
++ ret = air_buckpbus_reg_read(phydev, EN8811H_2P5G_LPA, &pbus_value);
++ if (ret < 0)
++ return ret;
++ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++ phydev->lp_advertising,
++ pbus_value & EN8811H_2P5G_LPA_2P5G);
++
++ if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete)
++ phy_resolve_aneg_pause(phydev);
++
++ if (!phydev->link)
++ return 0;
++
++ /* Get real speed from vendor register */
++ val = phy_read(phydev, AIR_AUX_CTRL_STATUS);
++ if (val < 0)
++ return val;
++ switch (val & AIR_AUX_CTRL_STATUS_SPEED_MASK) {
++ case AIR_AUX_CTRL_STATUS_SPEED_2500:
++ phydev->speed = SPEED_2500;
++ break;
++ case AIR_AUX_CTRL_STATUS_SPEED_1000:
++ phydev->speed = SPEED_1000;
++ break;
++ case AIR_AUX_CTRL_STATUS_SPEED_100:
++ phydev->speed = SPEED_100;
++ break;
++ }
++
++ /* BUG in PHY firmware: MDIO_AN_10GBT_STAT_LP2_5G does not get set.
++ * Firmware before version 24011202 has no vendor register 2P5G_LPA.
++ * Assume link partner advertised it if connected at 2500Mbps.
++ */
++ if (priv->firmware_version < 0x24011202) {
++ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++ phydev->lp_advertising,
++ phydev->speed == SPEED_2500);
++ }
++
++ /* Only supports full duplex */
++ phydev->duplex = DUPLEX_FULL;
++
++ return 0;
++}
++
++static int en8811h_clear_intr(struct phy_device *phydev)
++{
++ int ret;
++
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_HOST_CMD_3,
++ AIR_PHY_HOST_CMD_3_DOCMD);
++ if (ret < 0)
++ return ret;
++
++ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_HOST_CMD_4,
++ AIR_PHY_HOST_CMD_4_INTCLR);
++ if (ret < 0)
++ return ret;
++
++ return 0;
++}
++
++static irqreturn_t en8811h_handle_interrupt(struct phy_device *phydev)
++{
++ int ret;
++
++ ret = en8811h_clear_intr(phydev);
++ if (ret < 0) {
++ phy_error(phydev);
++ return IRQ_NONE;
++ }
++
++ phy_trigger_machine(phydev);
++
++ return IRQ_HANDLED;
++}
++
++static struct phy_driver en8811h_driver[] = {
++{
++ PHY_ID_MATCH_MODEL(EN8811H_PHY_ID),
++ .name = "Airoha EN8811H",
++ .probe = en8811h_probe,
++ .get_features = en8811h_get_features,
++ .config_init = en8811h_config_init,
++ .get_rate_matching = en8811h_get_rate_matching,
++ .config_aneg = en8811h_config_aneg,
++ .read_status = en8811h_read_status,
++ .config_intr = en8811h_clear_intr,
++ .handle_interrupt = en8811h_handle_interrupt,
++ .led_hw_is_supported = en8811h_led_hw_is_supported,
++ .read_page = air_phy_read_page,
++ .write_page = air_phy_write_page,
++ .led_blink_set = air_led_blink_set,
++ .led_brightness_set = air_led_brightness_set,
++ .led_hw_control_set = air_led_hw_control_set,
++ .led_hw_control_get = air_led_hw_control_get,
++} };
++
++module_phy_driver(en8811h_driver);
++
++static struct mdio_device_id __maybe_unused en8811h_tbl[] = {
++ { PHY_ID_MATCH_MODEL(EN8811H_PHY_ID) },
++ { }
++};
++MODULE_DEVICE_TABLE(mdio, en8811h_tbl);
++MODULE_FIRMWARE(EN8811H_MD32_DM);
++MODULE_FIRMWARE(EN8811H_MD32_DSP);
++
++MODULE_DESCRIPTION("Airoha EN8811H PHY drivers");
++MODULE_AUTHOR("Airoha");
++MODULE_AUTHOR("Eric Woudstra <ericwouds@gmail.com>");
++MODULE_LICENSE("GPL");
projects / openwrt / staging / neocturne.git / commitdiff