diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/engicam/icorem6/icorem6.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/board/engicam/icorem6/icorem6.c b/board/engicam/icorem6/icorem6.c index 1856972..a23cb7e 100644 --- a/board/engicam/icorem6/icorem6.c +++ b/board/engicam/icorem6/icorem6.c @@ -9,12 +9,15 @@ #include <common.h> #include <fsl_esdhc.h> #include <mmc.h> +#include <miiphy.h> +#include <netdev.h> #include <asm/io.h> #include <asm/gpio.h> #include <linux/sizes.h> #include <asm/arch/clock.h> +#include <asm/arch/crm_regs.h> #include <asm/arch/iomux.h> #include <asm/arch/mx6-pins.h> #include <asm/arch/sys_proto.h> @@ -30,11 +33,28 @@ DECLARE_GLOBAL_DATA_PTR; PAD_CTL_PUS_22K_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) + static iomux_v3_cfg_t const uart4_pads[] = { IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), }; +static iomux_v3_cfg_t const enet_pads[] = { + IOMUX_PADS(PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL | PAD_CTL_SRE_FAST)), + IOMUX_PADS(PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + static iomux_v3_cfg_t const usdhc1_pads[] = { IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), @@ -99,6 +119,58 @@ int board_mmc_init(bd_t *bis) } #endif +#ifdef CONFIG_FEC_MXC +#define ENET_PHY_RST IMX_GPIO_NR(7, 12) +static int setup_fec(void) +{ + struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; + s32 timeout = 100000; + u32 reg = 0; + int ret; + + /* Enable fec clock */ + setbits_le32(&ccm->CCGR1, MXC_CCM_CCGR1_ENET_MASK); + + /* use 50MHz */ + ret = enable_fec_anatop_clock(0, ENET_50MHZ); + if (ret) + return ret; + + /* Enable PLLs */ + reg = readl(&anatop->pll_enet); + reg &= ~BM_ANADIG_PLL_SYS_POWERDOWN; + writel(reg, &anatop->pll_enet); + reg = readl(&anatop->pll_enet); + reg |= BM_ANADIG_PLL_SYS_ENABLE; + while (timeout--) { + if (readl(&anatop->pll_enet) & BM_ANADIG_PLL_SYS_LOCK) + break; + } + if (timeout <= 0) + return -EIO; + reg &= ~BM_ANADIG_PLL_SYS_BYPASS; + writel(reg, &anatop->pll_enet); + + /* reset the phy */ + gpio_direction_output(ENET_PHY_RST, 0); + udelay(10000); + gpio_set_value(ENET_PHY_RST, 1); + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + int ret; + + SETUP_IOMUX_PADS(enet_pads); + setup_fec(); + + return ret = cpu_eth_init(bis); +} +#endif + int board_early_init_f(void) { SETUP_IOMUX_PADS(uart4_pads); |