ARM: tegra: Enable PCIe on Cardhu

The PCIe bus on Cardhu is routed to the dock connector. An ethernet NIC
is available on the dock over the PCIe bus. Enable the PCIe controller
and the network device driver so that the device can boot over the
network.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

diff --git a/arch/arm/dts/tegra30-cardhu.dts b/arch/arm/dts/tegra30-cardhu.dts
index 1b8ed737e049707f0cec91f491bdb2e84e3099f0..e13d0fb467137766fcfe5677ca1cf64d889a82de 100644 (file)
--- a/arch/arm/dts/tegra30-cardhu.dts
+++ b/arch/arm/dts/tegra30-cardhu.dts
@@ -27,6 +27,31 @@
                reg = <0x80000000 0x40000000>;
        };
 
+       pcie-controller@00003000 {
+               status = "okay";
+
+               /* AVDD_PEXA and VDD_PEXA inputs are grounded on Cardhu. */
+               avdd-pexb-supply = <&ldo1_reg>;
+               vdd-pexb-supply = <&ldo1_reg>;
+               avdd-pex-pll-supply = <&ldo1_reg>;
+               hvdd-pex-supply = <&pex_hvdd_3v3_reg>;
+               vddio-pex-ctl-supply = <&sys_3v3_reg>;
+               avdd-plle-supply = <&ldo2_reg>;
+
+               pci@1,0 {
+                       nvidia,num-lanes = <4>;
+               };
+
+               pci@2,0 {
+                       nvidia,num-lanes = <1>;
+               };
+
+               pci@3,0 {
+                       status = "okay";
+                       nvidia,num-lanes = <1>;
+               };
+       };
+
        i2c@7000c000 {
                status = "okay";
                clock-frequency = <100000>;
@@ -50,6 +75,107 @@
        i2c@7000d000 {
                status = "okay";
                clock-frequency = <100000>;
+
+               pmic: tps65911@2d {
+                       compatible = "ti,tps65911";
+                       reg = <0x2d>;
+
+                       interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+                       #interrupt-cells = <2>;
+                       interrupt-controller;
+
+                       ti,system-power-controller;
+
+                       #gpio-cells = <2>;
+                       gpio-controller;
+
+                       vcc1-supply = <&vdd_ac_bat_reg>;
+                       vcc2-supply = <&vdd_ac_bat_reg>;
+                       vcc3-supply = <&vio_reg>;
+                       vcc4-supply = <&vdd_5v0_reg>;
+                       vcc5-supply = <&vdd_ac_bat_reg>;
+                       vcc6-supply = <&vdd2_reg>;
+                       vcc7-supply = <&vdd_ac_bat_reg>;
+                       vccio-supply = <&vdd_ac_bat_reg>;
+
+                       regulators {
+                               vdd1_reg: vdd1 {
+                                       regulator-name = "vddio_ddr_1v2";
+                                       regulator-min-microvolt = <1200000>;
+                                       regulator-max-microvolt = <1200000>;
+                                       regulator-always-on;
+                               };
+
+                               vdd2_reg: vdd2 {
+                                       regulator-name = "vdd_1v5_gen";
+                                       regulator-min-microvolt = <1500000>;
+                                       regulator-max-microvolt = <1500000>;
+                                       regulator-always-on;
+                               };
+
+                               vddctrl_reg: vddctrl {
+                                       regulator-name = "vdd_cpu,vdd_sys";
+                                       regulator-min-microvolt = <1000000>;
+                                       regulator-max-microvolt = <1000000>;
+                                       regulator-always-on;
+                               };
+
+                               vio_reg: vio {
+                                       regulator-name = "vdd_1v8_gen";
+                                       regulator-min-microvolt = <1800000>;
+                                       regulator-max-microvolt = <1800000>;
+                                       regulator-always-on;
+                               };
+
+                               ldo1_reg: ldo1 {
+                                       regulator-name = "vdd_pexa,vdd_pexb";
+                                       regulator-min-microvolt = <1050000>;
+                                       regulator-max-microvolt = <1050000>;
+                               };
+
+                               ldo2_reg: ldo2 {
+                                       regulator-name = "vdd_sata,avdd_plle";
+                                       regulator-min-microvolt = <1050000>;
+                                       regulator-max-microvolt = <1050000>;
+                               };
+
+                               /* LDO3 is not connected to anything */
+
+                               ldo4_reg: ldo4 {
+                                       regulator-name = "vdd_rtc";
+                                       regulator-min-microvolt = <1200000>;
+                                       regulator-max-microvolt = <1200000>;
+                                       regulator-always-on;
+                               };
+
+                               ldo5_reg: ldo5 {
+                                       regulator-name = "vddio_sdmmc,avdd_vdac";
+                                       regulator-min-microvolt = <3300000>;
+                                       regulator-max-microvolt = <3300000>;
+                                       regulator-always-on;
+                               };
+
+                               ldo6_reg: ldo6 {
+                                       regulator-name = "avdd_dsi_csi,pwrdet_mipi";
+                                       regulator-min-microvolt = <1200000>;
+                                       regulator-max-microvolt = <1200000>;
+                               };
+
+                               ldo7_reg: ldo7 {
+                                       regulator-name = "vdd_pllm,x,u,a_p_c_s";
+                                       regulator-min-microvolt = <1200000>;
+                                       regulator-max-microvolt = <1200000>;
+                                       regulator-always-on;
+                               };
+
+                               ldo8_reg: ldo8 {
+                                       regulator-name = "vdd_ddr_hs";
+                                       regulator-min-microvolt = <1000000>;
+                                       regulator-max-microvolt = <1000000>;
+                                       regulator-always-on;
+                               };
+                       };
+               };
        };
 
        spi@7000da00 {
@@ -74,4 +200,240 @@
                nvidia,vbus-gpio = <&gpio 236 0>;       /* PDD4 */
                status = "okay";
        };
+
+       regulators {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               vdd_ac_bat_reg: regulator@0 {
+                       compatible = "regulator-fixed";
+                       reg = <0>;
+                       regulator-name = "vdd_ac_bat";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-always-on;
+               };
+
+               cam_1v8_reg: regulator@1 {
+                       compatible = "regulator-fixed";
+                       reg = <1>;
+                       regulator-name = "cam_1v8";
+                       regulator-min-microvolt = <1800000>;
+                       regulator-max-microvolt = <1800000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(BB, 4) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&vio_reg>;
+               };
+
+               cp_5v_reg: regulator@2 {
+                       compatible = "regulator-fixed";
+                       reg = <2>;
+                       regulator-name = "cp_5v";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-boot-on;
+                       regulator-always-on;
+                       enable-active-high;
+                       gpio = <&pmic 0 GPIO_ACTIVE_HIGH>;
+               };
+
+               emmc_3v3_reg: regulator@3 {
+                       compatible = "regulator-fixed";
+                       reg = <3>;
+                       regulator-name = "emmc_3v3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(D, 1) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               modem_3v3_reg: regulator@4 {
+                       compatible = "regulator-fixed";
+                       reg = <4>;
+                       regulator-name = "modem_3v3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(D, 6) GPIO_ACTIVE_HIGH>;
+               };
+
+               pex_hvdd_3v3_reg: regulator@5 {
+                       compatible = "regulator-fixed";
+                       reg = <5>;
+                       regulator-name = "pex_hvdd_3v3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(L, 7) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_cam1_ldo_reg: regulator@6 {
+                       compatible = "regulator-fixed";
+                       reg = <6>;
+                       regulator-name = "vdd_cam1_ldo";
+                       regulator-min-microvolt = <2800000>;
+                       regulator-max-microvolt = <2800000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(R, 6) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_cam2_ldo_reg: regulator@7 {
+                       compatible = "regulator-fixed";
+                       reg = <7>;
+                       regulator-name = "vdd_cam2_ldo";
+                       regulator-min-microvolt = <2800000>;
+                       regulator-max-microvolt = <2800000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(R, 7) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_cam3_ldo_reg: regulator@8 {
+                       compatible = "regulator-fixed";
+                       reg = <8>;
+                       regulator-name = "vdd_cam3_ldo";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(S, 0) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_com_reg: regulator@9 {
+                       compatible = "regulator-fixed";
+                       reg = <9>;
+                       regulator-name = "vdd_com";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(D, 0) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_fuse_3v3_reg: regulator@10 {
+                       compatible = "regulator-fixed";
+                       reg = <10>;
+                       regulator-name = "vdd_fuse_3v3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(L, 6) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_pnl1_reg: regulator@11 {
+                       compatible = "regulator-fixed";
+                       reg = <11>;
+                       regulator-name = "vdd_pnl1";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(L, 4) GPIO_ACTIVE_HIGH>;
+                       vin-supply = <&sys_3v3_reg>;
+               };
+
+               vdd_vid_reg: regulator@12 {
+                       compatible = "regulator-fixed";
+                       reg = <12>;
+                       regulator-name = "vddio_vid";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(T, 0) GPIO_ACTIVE_HIGH>;
+                       gpio-open-drain;
+                       vin-supply = <&vdd_5v0_reg>;
+               };
+
+               ddr_reg: regulator@100 {
+                       compatible = "regulator-fixed";
+                       regulator-name = "ddr";
+                       reg = <100>;
+                       regulator-min-microvolt = <1500000>;
+                       regulator-max-microvolt = <1500000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&pmic 7 GPIO_ACTIVE_HIGH>;
+               };
+
+               sys_3v3_reg: regulator@101 {
+                       compatible = "regulator-fixed";
+                       reg = <101>;
+                       regulator-name = "sys_3v3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&pmic 6 GPIO_ACTIVE_HIGH>;
+               };
+
+               usb1_vbus_reg: regulator@102 {
+                       compatible = "regulator-fixed";
+                       reg = <102>;
+                       regulator-name = "usb1_vbus";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(DD, 6) GPIO_ACTIVE_HIGH>;
+                       gpio-open-drain;
+                       vin-supply = <&vdd_5v0_reg>;
+               };
+
+               usb3_vbus_reg: regulator@103 {
+                       compatible = "regulator-fixed";
+                       reg = <103>;
+                       regulator-name = "usb3_vbus";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(DD, 4) GPIO_ACTIVE_HIGH>;
+                       gpio-open-drain;
+                       vin-supply = <&vdd_5v0_reg>;
+               };
+
+               vdd_5v0_reg: regulator@104 {
+                       compatible = "regulator-fixed";
+                       reg = <104>;
+                       regulator-name = "5v0";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       enable-active-high;
+                       gpio = <&pmic 8 GPIO_ACTIVE_HIGH>;
+               };
+
+               vdd_bl_reg: regulator@105 {
+                       compatible = "regulator-fixed";
+                       reg = <105>;
+                       regulator-name = "vdd_bl";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(DD, 2) GPIO_ACTIVE_HIGH>;
+               };
+
+               vdd_bl2_reg: regulator@106 {
+                       compatible = "regulator-fixed";
+                       reg = <106>;
+                       regulator-name = "vdd_bl2";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+                       enable-active-high;
+                       gpio = <&gpio TEGRA_GPIO(DD, 0) GPIO_ACTIVE_HIGH>;
+               };
+       };
 };

diff --git a/board/nvidia/cardhu/cardhu.c b/board/nvidia/cardhu/cardhu.c
index 026f45c6c686da054603d908989604f2fd78301b..95c4ff25092b7272860d1770c25d239ab27b50b0 100644 (file)
--- a/board/nvidia/cardhu/cardhu.c
+++ b/board/nvidia/cardhu/cardhu.c
@@ -9,8 +9,11 @@
 #include <dm.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/gp_padctrl.h>
+#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
 #include "pinmux-config-cardhu.h"
 #include <i2c.h>
+#include <netdev.h>
 
 #define PMU_I2C_ADDRESS                0x2D
 #define MAX_I2C_RETRY          3
@@ -83,3 +86,52 @@ void pin_mux_mmc(void)
        board_sdmmc_voltage_init();
 }
 #endif /* MMC */
+
+#ifdef CONFIG_PCI_TEGRA
+int tegra_pcie_board_init(void)
+{
+       struct udevice *dev;
+       u8 addr, data[1];
+       int err;
+
+       err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, &dev);
+       if (err) {
+               debug("failed to find PMU bus\n");
+               return err;
+       }
+
+       /* TPS659110: LDO1_REG = 1.05V, ACTIVE */
+       data[0] = 0x15;
+       addr = 0x30;
+
+       err = i2c_write(dev, addr, data, 1);
+       if (err) {
+               debug("failed to set VDD supply\n");
+               return err;
+       }
+
+       /* GPIO: PEX = 3.3V */
+       err = gpio_request(GPIO_PL7, "PEX");
+       if (err < 0)
+               return err;
+
+       gpio_direction_output(GPIO_PL7, 1);
+
+       /* TPS659110: LDO2_REG = 1.05V, ACTIVE */
+       data[0] = 0x15;
+       addr = 0x31;
+
+       err = i2c_write(dev, addr, data, 1);
+       if (err) {
+               debug("failed to set AVDD supply\n");
+               return err;
+       }
+
+       return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+       return pci_eth_init(bis);
+}
+#endif /* PCI */

diff --git a/include/configs/cardhu.h b/include/configs/cardhu.h
index 758b7ad392dc9f7f13e68f12e0ffe7c11fb5b01f..5e13b655c28788b9cfdf65a699c8e65929fb78ee 100644 (file)
--- a/include/configs/cardhu.h
+++ b/include/configs/cardhu.h
@@ -78,6 +78,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP