TJA1101B driver

Thinhnt7 — Wed, 27 Oct 2021 14:44:28 GMT

Hello experts

I have a product board using TI processor with two Ethernet interface port are connected to two TJA1101B PHY.

1. The kernel_5.10 has already had the nxp-tja11xx.c driver supported TJA1101B. with two PHY device, I need to change the code as below, is it right?

static struct phy_driver tja11xx_driver[] = { { PHY_ID_MATCH_MODEL(PHY_ID_TJA1101), .name = "NXP TJA1101 Port1", .features = PHY_BASIC_T1_FEATURES, .probe = tja11xx_probe, .soft_reset = tja11xx_soft_reset, .config_aneg = tja11xx_config_aneg, .config_init = tja11xx_config_init, .read_status = tja11xx_read_status, .get_sqi = tja11xx_get_sqi, .get_sqi_max = tja11xx_get_sqi_max, .suspend = genphy_suspend, .resume = genphy_resume, .set_loopback = genphy_loopback, /* Statistics */ .get_sset_count = tja11xx_get_sset_count, .get_strings = tja11xx_get_strings, .get_stats = tja11xx_get_stats, }, { PHY_ID_MATCH_MODEL(PHY_ID_TJA1101), .name = "NXP TJA1101 Port2", .features = PHY_BASIC_T1_FEATURES, .probe = tja11xx_probe, .soft_reset = tja11xx_soft_reset, .config_aneg = tja11xx_config_aneg, .config_init = tja11xx_config_init, .read_status = tja11xx_read_status, .get_sqi = tja11xx_get_sqi, .get_sqi_max = tja11xx_get_sqi_max, .suspend = genphy_suspend, .resume = genphy_resume, .set_loopback = genphy_loopback, /* Statistics */ .get_sset_count = tja11xx_get_sset_count, .get_strings = tja11xx_get_strings, .get_stats = tja11xx_get_stats, }, }

2. With TJA1101B port1 MDIO address is 0x00, TJA1101B port2 MDIO address is 0x02

And I refer to the device tree inside the linux-imx in order to port it inside my kernel with contents of node as below

&ether_port1 { phy-mode = "rmii"; phy-handle = <&ether_phy1>; interrupt-parent = <&main_gpio1>; interrupts = <22 IRQ_TYPE_LEVEL_LOW>; /* V3 (GPIO1_22) interrupt */ reset-gpios = <&main_gpio1 21 GPIO_ACTIVE_LOW>;/* W2 (GPIO1_21) */ reset-delay-us = <10>; /* reset detection times: 5 - 20 uS */ en-gpios = <&main_gpio1 20 GPIO_ACTIVE_LOW>; /* Y2 (GPIO1_20) */ en-delay-us = <10>; /* detection time on pin EN */ }; &ether_port2 { phy-mode = "rmii"; phy-handle = <&ether_phy2>; interrupt-parent = <&main_gpio0>; interrupts = <48 IRQ_TYPE_LEVEL_LOW >; /* V8 (GPIO0_48) interrupt */ reset-gpios = <&main_gpio0 47 GPIO_ACTIVE_LOW>;/* W8 (GPIO0_47) */ reset-delay-us = <10>; /* reset detection times: 5 - 20 uS */ en-gpios = <&main_gpio0 46 GPIO_ACTIVE_LOW>; /* U8 (GPIO0_46) */ en-delay-us = <10>; /* detection time on pin EN */ }; &ether_mdio { ether_phy1: ethernet-phy@0 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <0>; tja110x,refclk_in; }; ether_phy2: ethernet-phy@2 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <2>; tja110x,refclk_in; }; };

could you recommend me about the solution of PHY-EN, PHY-RST, PHY-INT pin in the PHY driver?

Thanks

Processor Expert SoftwareのトピックTJA1101B driver

TJA1101B driver