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authorJason Liu <jason.hui@linaro.org>2011-12-16 05:17:08 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-01-16 08:40:08 +0100
commit473c63592ea8cbcb5b57452e9857d961bb433cae (patch)
treee2fd0ab59380bb8fb79a21a187ac22a0c3899874 /board
parent2ef2b9509554535dad7a8d15087c6df418f12f22 (diff)
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i.mx6q: arm2: Add the enet function support
This enable the network function on the i.mx6q armadillo2 board(arm2), thus we can use tftp to load image from network. Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Jason Liu <jason.hui@linaro.org> Tested-by: Dirk Behme <dirk.behme@de.bosch.com>
Diffstat (limited to 'board')
-rw-r--r--board/freescale/mx6qarm2/mx6qarm2.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/board/freescale/mx6qarm2/mx6qarm2.c b/board/freescale/mx6qarm2/mx6qarm2.c
index 89e0e76..9894245 100644
--- a/board/freescale/mx6qarm2/mx6qarm2.c
+++ b/board/freescale/mx6qarm2/mx6qarm2.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);
@@ -79,11 +85,35 @@ iomux_v3_cfg_t usdhc4_pads[] = {
MX6Q_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
+iomux_v3_cfg_t enet_pads[] = {
+ MX6Q_PAD_KEY_COL1__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6Q_PAD_KEY_COL2__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),
+};
+
+
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
}
+static void setup_iomux_enet(void)
+{
+ imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+}
+
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg usdhc_cfg[2] = {
{USDHC3_BASE_ADDR, 1},
@@ -132,9 +162,69 @@ int board_mmc_init(bd_t *bis)
}
#endif
+#define MII_MMD_ACCESS_CTRL_REG 0xd
+#define MII_MMD_ACCESS_ADDR_DATA_REG 0xe
+#define MII_DBG_PORT_REG 0x1d
+#define MII_DBG_PORT2_REG 0x1e
+
+int fecmxc_mii_postcall(int phy)
+{
+ unsigned short val;
+
+ /*
+ * Due to the i.MX6Q Armadillo2 board HW design,there is
+ * no 125Mhz clock input from SOC. In order to use RGMII,
+ * We need enable AR8031 ouput a 125MHz clk from CLK_25M
+ */
+ miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x7);
+ miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, 0x8016);
+ miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x4007);
+ miiphy_read("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, &val);
+ val &= 0xffe3;
+ val |= 0x18;
+ miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, val);
+
+ /* For the RGMII phy, we need enable tx clock delay */
+ miiphy_write("FEC", phy, MII_DBG_PORT_REG, 0x5);
+ miiphy_read("FEC", phy, MII_DBG_PORT2_REG, &val);
+ val |= 0x0100;
+ miiphy_write("FEC", phy, MII_DBG_PORT2_REG, val);
+
+ miiphy_write("FEC", phy, MII_BMCR, 0xa100);
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ struct eth_device *dev;
+ int ret;
+
+ 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();
+ setup_iomux_enet();
return 0;
}