diff options
author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/drivers/net/phy/ca_phy.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/drivers/net/phy/ca_phy.c')
-rw-r--r-- | roms/u-boot/drivers/net/phy/ca_phy.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/net/phy/ca_phy.c b/roms/u-boot/drivers/net/phy/ca_phy.c new file mode 100644 index 000000000..16851a682 --- /dev/null +++ b/roms/u-boot/drivers/net/phy/ca_phy.c @@ -0,0 +1,133 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Cortina CS4315/CS4340 10G PHY drivers + * + * Copyright 2014 Freescale Semiconductor, Inc. + * Copyright 2018 NXP + * + */ + +#include <config.h> +#include <common.h> +#include <log.h> +#include <malloc.h> +#include <linux/ctype.h> +#include <linux/delay.h> +#include <linux/string.h> +#include <linux/err.h> +#include <phy.h> + +#define PHY_ID_RTL8211_EXT 0x001cc910 +#define PHY_ID_RTL8211_INT 0x001cc980 +#define PHY_ID_MASK 0xFFFFFFF0 + +static void __internal_phy_init(struct phy_device *phydev, int reset_phy) +{ + u8 phy_addr; + u16 data; + + /* should initialize 4 GPHYs at once */ + for (phy_addr = 4; phy_addr > 0; phy_addr--) { + phydev->addr = phy_addr; + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0BC6); + phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x0053); + phy_write(phydev, MDIO_DEVAD_NONE, 18, 0x4003); + phy_write(phydev, MDIO_DEVAD_NONE, 22, 0x7e01); + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0A42); + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0A40); + phy_write(phydev, MDIO_DEVAD_NONE, 0, 0x1140); + } + + /* workaround to fix GPHY fail */ + for (phy_addr = 1; phy_addr < 5; phy_addr++) { + /* Clear clock fail interrupt */ + phydev->addr = phy_addr; + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0xB90); + data = phy_read(phydev, MDIO_DEVAD_NONE, 19); + if (data == 0x10) { + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0xB90); + data = phy_read(phydev, MDIO_DEVAD_NONE, 19); + printf("%s: read again.\n", __func__); + } + + printf("%s: phy_addr=%d, read register 19, value=0x%x\n", + __func__, phy_addr, data); + } +} + +static void __external_phy_init(struct phy_device *phydev, int reset_phy) +{ + u16 val; + + /* Disable response PHYAD=0 function of RTL8211 series PHY */ + /* REG31 write 0x0007, set to extension page */ + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0007); + + /* REG30 write 0x002C, set to extension page 44 */ + phy_write(phydev, MDIO_DEVAD_NONE, 30, 0x002C); + + /* + * REG27 write bit[2] = 0 disable response PHYAD = 0 function. + * we should read REG27 and clear bit[2], and write back + */ + val = phy_read(phydev, MDIO_DEVAD_NONE, 27); + val &= ~(1 << 2); + phy_write(phydev, MDIO_DEVAD_NONE, 27, val); + + /* REG31 write 0X0000, back to page0 */ + phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0000); +} + +static int rtl8211_external_config(struct phy_device *phydev) +{ + __external_phy_init(phydev, 0); + printf("%s: initialize RTL8211 external done.\n", __func__); + return 0; +} + +static int rtl8211_internal_config(struct phy_device *phydev) +{ + struct phy_device phydev_init; + + memcpy(&phydev_init, phydev, sizeof(struct phy_device)); + /* should initialize 4 GPHYs at once */ + __internal_phy_init(&phydev_init, 0); + printf("%s: initialize RTL8211 internal done.\n", __func__); + return 0; +} + +static int rtl8211_probe(struct phy_device *phydev) +{ + /* disable reset behavior */ + phydev->flags = PHY_FLAG_BROKEN_RESET; + return 0; +} + +/* Support for RTL8211 External PHY */ +struct phy_driver rtl8211_external_driver = { + .name = "Cortina RTL8211 External", + .uid = PHY_ID_RTL8211_EXT, + .mask = PHY_ID_MASK, + .features = PHY_GBIT_FEATURES, + .config = &rtl8211_external_config, + .probe = &rtl8211_probe, + .startup = &genphy_startup, +}; + +/* Support for RTL8211 Internal PHY */ +struct phy_driver rtl8211_internal_driver = { + .name = "Cortina RTL8211 Inrernal", + .uid = PHY_ID_RTL8211_INT, + .mask = PHY_ID_MASK, + .features = PHY_GBIT_FEATURES, + .config = &rtl8211_internal_config, + .probe = &rtl8211_probe, + .startup = &genphy_startup, +}; + +int phy_cortina_access_init(void) +{ + phy_register(&rtl8211_external_driver); + phy_register(&rtl8211_internal_driver); + return 0; +} |