diff options
Diffstat (limited to 'board/freescale/mx6qsabrelite')
| -rw-r--r-- | board/freescale/mx6qsabrelite/mx6qsabrelite.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c index 233e652..a53b01f 100644 --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c @@ -29,6 +29,8 @@ #include <asm/gpio.h> #include <mmc.h> #include <fsl_esdhc.h> +#include <miiphy.h> +#include <netdev.h> DECLARE_GLOBAL_DATA_PTR; @@ -40,6 +42,10 @@ DECLARE_GLOBAL_DATA_PTR; PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) +#define ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + int dram_init(void) { gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); @@ -77,6 +83,59 @@ iomux_v3_cfg_t usdhc4_pads[] = { MX6Q_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ }; +iomux_v3_cfg_t enet_pads1[] = { + MX6Q_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), + /* pin 35 - 1 (PHY_AD2) on reset */ + MX6Q_PAD_RGMII_RXC__GPIO_6_30 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* pin 32 - 1 - (MODE0) all */ + MX6Q_PAD_RGMII_RD0__GPIO_6_25 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* pin 31 - 1 - (MODE1) all */ + MX6Q_PAD_RGMII_RD1__GPIO_6_27 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* pin 28 - 1 - (MODE2) all */ + MX6Q_PAD_RGMII_RD2__GPIO_6_28 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* pin 27 - 1 - (MODE3) all */ + MX6Q_PAD_RGMII_RD3__GPIO_6_29 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */ + MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* pin 42 PHY nRST */ + MX6Q_PAD_EIM_D23__GPIO_3_23 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +iomux_v3_cfg_t enet_pads2[] = { + MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6Q_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), +}; + +static void setup_iomux_enet(void) +{ + gpio_direction_output(87, 0); /* GPIO 3-23 */ + gpio_direction_output(190, 1); /* GPIO 6-30 */ + gpio_direction_output(185, 1); /* GPIO 6-25 */ + gpio_direction_output(187, 1); /* GPIO 6-27 */ + gpio_direction_output(188, 1); /* GPIO 6-28*/ + gpio_direction_output(189, 1); /* GPIO 6-29 */ + imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1)); + gpio_direction_output(184, 1); /* GPIO 6-24 */ + + /* Need delay 10ms according to KSZ9021 spec */ + udelay(1000 * 10); + gpio_direction_output(87, 1); /* GPIO 3-23 */ + + imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2)); +} + static void setup_iomux_uart(void) { imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); @@ -134,6 +193,55 @@ int board_mmc_init(bd_t *bis) } #endif +#define MII_1000BASET_CTRL 0x9 +#define MII_EXTENDED_CTRL 0xb +#define MII_EXTENDED_DATAW 0xc + +int fecmxc_mii_postcall(int phy) +{ + /* prefer master mode */ + miiphy_write("FEC", phy, MII_1000BASET_CTRL, 0x0f00); + + /* min rx data delay */ + miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8105); + miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0x0000); + + /* max rx/tx clock delay, min rx/tx control delay */ + miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x8104); + miiphy_write("FEC", phy, MII_EXTENDED_DATAW, 0xf0f0); + miiphy_write("FEC", phy, MII_EXTENDED_CTRL, 0x104); + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + struct eth_device *dev; + int ret; + + setup_iomux_enet(); + + ret = cpu_eth_init(bis); + if (ret) { + printf("FEC MXC: %s:failed\n", __func__); + return ret; + } + + dev = eth_get_dev_by_name("FEC"); + if (!dev) { + printf("FEC MXC: Unable to get FEC device entry\n"); + return -EINVAL; + } + + ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall); + if (ret) { + printf("FEC MXC: Unable to register FEC mii postcall\n"); + return ret; + } + + return 0; +} + int board_early_init_f(void) { setup_iomux_uart(); |