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mx6qsabresd: Add Ethernet support

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mx6qsabresd has a AR8031 Gigabit PHY.

Add support for it.

Also increase CONFIG_SYS_MALLOC_LEN so that FEC buffer allocation does not fail.

Tested on 1Gbp and 100Mbps networks.

Suggested-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
This commit is contained in:
Fabio Estevam 2012-09-18 17:24:23 +00:00 • committed by Tom Rini
parent 7891e258d4
commit a0d21fc01a
2 changed files with 91 additions and 2 deletions
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76
board/freescale/mx6qsabresd/mx6qsabresd.c
View file

@ -56,6 +56,36 @@ iomux_v3_cfg_t uart1_pads[] = {
MX6Q_PAD_CSI0_DAT11__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
};
iomux_v3_cfg_t enet_pads[] = {
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),
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),
/* AR8031 PHY Reset */
MX6Q_PAD_ENET_CRS_DV__GPIO_1_25 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static void setup_iomux_enet(void)
{
imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
/* Reset AR8031 PHY */
gpio_direction_output(IMX_GPIO_NR(1, 25) , 0);
udelay(500);
gpio_set_value(IMX_GPIO_NR(1, 25), 1);
}
iomux_v3_cfg_t usdhc3_pads[] = {
MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
@ -90,6 +120,52 @@ int board_mmc_init(bd_t *bis)
}
#endif
int mx6_rgmii_rework(struct phy_device *phydev)
{
unsigned short val;
/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
val &= 0xffe3;
val |= 0x18;
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
/* introduce tx clock delay */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
val |= 0x0100;
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
return 0;
}
int board_phy_config(struct phy_device *phydev)
{
mx6_rgmii_rework(phydev);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
int board_eth_init(bd_t *bis)
{
int ret;
setup_iomux_enet();
ret = cpu_eth_init(bis);
if (ret)
printf("FEC MXC: %s:failed\n", __func__);
return 0;
}
u32 get_board_rev(void)
{
return 0x63000;

17
include/configs/mx6qsabresd.h
View file

@ -33,9 +33,8 @@
#define CONFIG_REVISION_TAG
/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN CONFIG_ENV_SIZE
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 2 * 1024 * 1024)
#define CONFIG_ARCH_CPU_INIT
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_MXC_GPIO
@ -55,6 +54,20 @@
#define CONFIG_CMD_FAT
#define CONFIG_DOS_PARTITION
#define CONFIG_CMD_PING
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_MII
#define CONFIG_CMD_NET
#define CONFIG_FEC_MXC
#define CONFIG_MII
#define IMX_FEC_BASE ENET_BASE_ADDR
#define CONFIG_FEC_XCV_TYPE RGMII
#define CONFIG_ETHPRIME "FEC"
#define CONFIG_FEC_MXC_PHYADDR 1
#define CONFIG_PHYLIB
#define CONFIG_PHY_ATHEROS
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1