diff options
Diffstat (limited to 'board/technologic/ts4800/ts4800.c')
| -rw-r--r-- | board/technologic/ts4800/ts4800.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/board/technologic/ts4800/ts4800.c b/board/technologic/ts4800/ts4800.c index 0a8d43e4e9..6ef15e10bf 100644 --- a/board/technologic/ts4800/ts4800.c +++ b/board/technologic/ts4800/ts4800.c @@ -21,6 +21,9 @@ #include <fsl_esdhc.h> #include <mc13892.h> +#include <malloc.h> +#include <netdev.h> +#include <phy.h> #include "ts4800.h" DECLARE_GLOBAL_DATA_PTR; @@ -62,6 +65,36 @@ static void setup_iomux_uart(void) imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads)); } +static void setup_iomux_fec(void) +{ + static const iomux_v3_cfg_t fec_pads[] = { + NEW_PAD_CTRL(MX51_PAD_EIM_EB2__FEC_MDIO, + PAD_CTL_HYS | + PAD_CTL_PUS_22K_UP | + PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST), + MX51_PAD_EIM_EB3__FEC_RDATA1, + NEW_PAD_CTRL(MX51_PAD_EIM_CS2__FEC_RDATA2, PAD_CTL_HYS), + MX51_PAD_EIM_CS3__FEC_RDATA3, + MX51_PAD_NANDF_CS2__FEC_TX_ER, + MX51_PAD_EIM_CS5__FEC_CRS, + MX51_PAD_EIM_CS4__FEC_RX_ER, + /* PAD used on TS4800 */ + MX51_PAD_DI2_PIN2__FEC_MDC, + MX51_PAD_DISP2_DAT14__FEC_RDAT0, + MX51_PAD_DISP2_DAT10__FEC_COL, + MX51_PAD_DISP2_DAT11__FEC_RXCLK, + MX51_PAD_DISP2_DAT15__FEC_TDAT0, + MX51_PAD_DISP2_DAT6__FEC_TDAT1, + MX51_PAD_DISP2_DAT7__FEC_TDAT2, + MX51_PAD_DISP2_DAT8__FEC_TDAT3, + MX51_PAD_DISP2_DAT9__FEC_TX_EN, + MX51_PAD_DISP2_DAT13__FEC_TX_CLK, + MX51_PAD_DISP2_DAT12__FEC_RX_DV, + }; + + imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads)); +} + #ifdef CONFIG_FSL_ESDHC int board_mmc_getcd(struct mmc *mmc) { @@ -113,6 +146,7 @@ int board_mmc_init(bd_t *bis) int board_early_init_f(void) { setup_iomux_uart(); + setup_iomux_fec(); return 0; } @@ -126,6 +160,75 @@ int board_init(void) } /* + * Read the MAC address from FEC's registers PALR PAUR. + * User is supposed to configure these registers when MAC address is known + * from another source (fuse), but on TS4800, MAC address is not fused and + * the bootrom configure these registers on startup. + */ +static int fec_get_mac_from_register(uint32_t base_addr) +{ + unsigned char ethaddr[6]; + u32 reg_mac[2]; + int i; + + reg_mac[0] = in_be32(base_addr + 0xE4); + reg_mac[1] = in_be32(base_addr + 0xE8); + + for(i = 0; i < 6; i++) + ethaddr[i] = (reg_mac[i / 4] >> ((i % 4) * 8)) & 0xFF; + + if (is_valid_ethaddr(ethaddr)) { + eth_setenv_enetaddr("ethaddr", ethaddr); + return 0; + } + + return -1; +} + +#define TS4800_GPIO_FEC_PHY_RES IMX_GPIO_NR(2, 14) +int board_eth_init(bd_t *bd) +{ + int dev_id = -1; + int phy_id = 0xFF; + uint32_t addr = IMX_FEC_BASE; + + uint32_t base_mii; + struct mii_dev *bus = NULL; + struct phy_device *phydev = NULL; + int ret; + + /* reset FEC phy */ + imx_iomux_v3_setup_pad(MX51_PAD_EIM_A20__GPIO2_14); + gpio_direction_output(TS4800_GPIO_FEC_PHY_RES, 0); + mdelay(1); + gpio_set_value(TS4800_GPIO_FEC_PHY_RES, 1); + mdelay(1); + + base_mii = addr; + debug("eth_init: fec_probe(bd, %i, %i) @ %08x\n", dev_id, phy_id, addr); + bus = fec_get_miibus(base_mii, dev_id); + if (!bus) + return -ENOMEM; + + phydev = phy_find_by_mask(bus, phy_id, PHY_INTERFACE_MODE_MII); + if (!phydev) { + free(bus); + return -ENOMEM; + } + + if (fec_get_mac_from_register(addr)) + printf("eth_init: failed to get MAC address\n"); + + ret = fec_probe(bd, dev_id, addr, bus, phydev); + if (ret) { + free(phydev); + free(bus); + } + + return ret; +} + +/* * Do not overwrite the console * Use always serial for U-Boot console */ |