ARM: tegra: Enable PCIe on Cardhu

[oweals/u-boot.git] / board / nvidia / cardhu / cardhu.c

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 */