From: Fabio Estevam festevam@denx.de
Newer imx8mm-cl-iot-gate versions are populated with a Realtek RTL8211E PHY instead of the Atheros AR8033.
Adapted Compulab's patch from: https://github.com/compulab-yokneam/meta-bsp-imx8mm/blob/iot-gate-imx8_5.10....
to support both PHYs in U-Boot.
Signed-off-by: Fabio Estevam festevam@denx.de --- .../imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c | 106 +++++++++++++++++- include/configs/imx8mm-cl-iot-gate.h | 2 +- 2 files changed, 104 insertions(+), 4 deletions(-)
diff --git a/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c b/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c index af070ec315c4..bf196e062bd0 100644 --- a/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c +++ b/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c @@ -9,6 +9,7 @@ #include <efi_loader.h> #include <env.h> #include <extension_board.h> +#include <fdt_support.h> #include <hang.h> #include <i2c.h> #include <init.h> @@ -31,6 +32,8 @@
DECLARE_GLOBAL_DATA_PTR;
+static int fec_phyaddr = -1; + #if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) struct efi_fw_image fw_images[] = { #if defined(CONFIG_TARGET_IMX8MM_CL_IOT_GATE) @@ -110,10 +113,72 @@ static int setup_fec(void) return 0; }
+#define FDT_PHYADDR "/soc@0/bus@30800000/ethernet@30be0000/mdio/ethernet-phy@0" +#define FLIP_32B(val) (((val >> 24) & 0xff) | ((val << 8) & 0xff0000) | ((val >> 8) & 0xff00) | ((val << 24) & 0xff000000)) +static int fdt_set_fec_phy_addr(void *blob) +{ + u32 val; + + if (fec_phyaddr < 0) + return -EINVAL; + + val = FLIP_32B(fec_phyaddr); + return fdt_find_and_setprop(blob, FDT_PHYADDR, "reg", (const void *)&val, + sizeof(val), 0); +} + +int ft_board_setup(void *blob, struct bd_info *bd) +{ + fdt_set_fec_phy_addr(blob); + return 0; +} + +/* + * These are specific ID, purposed to distiguish between PHY vendors. + * These values are not equal to real vendors' OUI (half of MAC address) + */ +#define OUI_PHY_ATHEROS 0x1374 +#define OUI_PHY_REALTEK 0x0732 + int board_phy_config(struct phy_device *phydev) { - if (IS_ENABLED(CONFIG_FEC_MXC)) { + unsigned int model, rev, oui; + int phyid1, phyid2; + unsigned int reg; + + if (!IS_ENABLED(CONFIG_FEC_MXC)) + return 0; + + phyid1 = phy_read(phydev, MDIO_DEVAD_NONE, MII_PHYSID1); + if (phyid1 < 0) { + printf("%s: PHYID1 registry read fail %i\n", __func__, phyid1); + return phyid1; + } + + phyid2 = phy_read(phydev, MDIO_DEVAD_NONE, MII_PHYSID2); + if (phyid2 < 0) { + printf("%s: PHYID2 registry read fail %i\n", __func__, phyid2); + return phyid2; + } + + reg = phyid2 | phyid1 << 16; + if (reg == 0xffff) { + printf("%s: There is no device @%i\n", __func__, phydev->addr); + return -ENODEV; + } + + rev = reg & 0xf; + reg >>= 4; + model = reg & 0x3f; + reg >>= 6; + oui = reg; + debug("%s: PHY @0x%x OUI 0x%06x model 0x%x rev 0x%x\n", + __func__, phydev->addr, oui, model, rev); + + switch (oui) { + case OUI_PHY_ATHEROS: /* enable rgmii rxc skew and phy mode select to RGMII copper */ + printf("phy: AR803x@%x\t", phydev->addr); phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f); phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
@@ -121,10 +186,45 @@ int board_phy_config(struct phy_device *phydev) phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee); phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05); phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100); + break; + case OUI_PHY_REALTEK: + printf("phy: RTL8211E@%x\t", phydev->addr); + /* RTL8211E-VB-CG - add TX and RX delay */ + unsigned short val; + + phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x07); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0xa4); + val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1c); + val |= (0x1 << 13) | (0x1 << 12) | (0x1 << 11); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1c, val); + /* LEDs: set to extension page */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x0007); + /* extension Page44 */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x002c); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1c, 0x0430);//LCR + phy_write(phydev, MDIO_DEVAD_NONE, 0x1a, 0x0010);//LACR + /* + * To disable EEE LED mode (blinking .4s/2s) + * Extension Page5 + */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x0005); + phy_write(phydev, MDIO_DEVAD_NONE, 0x05, 0x8b82);//magic const + phy_write(phydev, MDIO_DEVAD_NONE, 0x06, 0x052b);//magic const + + phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x00);// Back to Page0
- if (phydev->drv->config) - phydev->drv->config(phydev); + break; + default: + printf("%s: ERROR: unknown PHY @0x%x OUI 0x%06x model 0x%x rev 0x%x\n", + __func__, phydev->addr, oui, model, rev); + return -ENOSYS; } + + fec_phyaddr = phydev->addr; + + if (phydev->drv->config) + phydev->drv->config(phydev); + return 0; }
diff --git a/include/configs/imx8mm-cl-iot-gate.h b/include/configs/imx8mm-cl-iot-gate.h index 09d87cf214bf..0c547027ba69 100644 --- a/include/configs/imx8mm-cl-iot-gate.h +++ b/include/configs/imx8mm-cl-iot-gate.h @@ -136,7 +136,7 @@ #define CFG_SYS_FSL_USDHC_NUM 2 #define CFG_SYS_FSL_ESDHC_ADDR 0
-#define CFG_FEC_MXC_PHYADDR 0 +#define CFG_FEC_MXC_PHYADDR -1 /* Auto search of PHY on MII */
/* USB Configs */ #define CFG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)