diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx25pdk/mx25pdk.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/board/freescale/mx25pdk/mx25pdk.c b/board/freescale/mx25pdk/mx25pdk.c index 9bf2d48..72fa6bc 100644 --- a/board/freescale/mx25pdk/mx25pdk.c +++ b/board/freescale/mx25pdk/mx25pdk.c @@ -26,7 +26,13 @@ #include <asm/arch/clock.h> #include <mmc.h> #include <fsl_esdhc.h> +#include <i2c.h> +#include <pmic.h> +#include <fsl_pmic.h> +#include <mc34704.h> +#define FEC_RESET_B IMX_GPIO_NR(2, 3) +#define FEC_ENABLE_B IMX_GPIO_NR(4, 8) #define CARD_DETECT IMX_GPIO_NR(2, 1) DECLARE_GLOBAL_DATA_PTR; @@ -37,6 +43,47 @@ struct fsl_esdhc_cfg esdhc_cfg[1] = { }; #endif +static void mx25pdk_fec_init(void) +{ + struct iomuxc_mux_ctl *muxctl; + struct iomuxc_pad_ctl *padctl; + u32 gpio_mux_mode = MX25_PIN_MUX_MODE(5); + u32 gpio_mux_mode0_sion = MX25_PIN_MUX_MODE(0) | MX25_PIN_MUX_SION; + + /* FEC pin init is generic */ + mx25_fec_init_pins(); + + muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; + padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; + /* + * Set up FEC_RESET_B and FEC_ENABLE_B + * + * FEC_RESET_B: gpio2_3 is ALT 5 mode of pin D12 + * FEC_ENABLE_B: gpio4_8 is ALT 5 mode of pin A17 + */ + writel(gpio_mux_mode, &muxctl->pad_d12); + writel(gpio_mux_mode, &muxctl->pad_a17); + + writel(0x0, &padctl->pad_d12); + writel(0x0, &padctl->pad_a17); + + /* Assert RESET and ENABLE low */ + gpio_direction_output(FEC_RESET_B, 0); + gpio_direction_output(FEC_ENABLE_B, 0); + + udelay(10); + + /* Deassert RESET and ENABLE */ + gpio_set_value(FEC_RESET_B, 1); + gpio_set_value(FEC_ENABLE_B, 1); + + /* Setup I2C pins so that PMIC can turn on PHY supply */ + writel(gpio_mux_mode0_sion, &muxctl->pad_i2c1_clk); + writel(gpio_mux_mode0_sion, &muxctl->pad_i2c1_dat); + writel(0x1E8, &padctl->pad_i2c1_clk); + writel(0x1E8, &padctl->pad_i2c1_dat); +} + int dram_init(void) { /* dram_init must store complete ramsize in gd->ram_size */ @@ -60,6 +107,20 @@ int board_init(void) return 0; } +int board_late_init(void) +{ + struct pmic *p; + + mx25pdk_fec_init(); + + pmic_init(); + p = get_pmic(); + /* Turn on Ethernet PHY supply */ + pmic_reg_write(p, MC34704_GENERAL2_REG, ONOFFE); + + return 0; +} + #ifdef CONFIG_FSL_ESDHC int board_mmc_getcd(struct mmc *mmc) { |