There is no change of behavior, even if some pad control values could probably be simplified.
Signed-off-by: Benoît Thébaudeau benoit.thebaudeau@advansee.com --- board/freescale/mx25pdk/mx25pdk.c | 128 ++++++++++++++++++++++--------------- 1 file changed, 75 insertions(+), 53 deletions(-)
diff --git a/board/freescale/mx25pdk/mx25pdk.c b/board/freescale/mx25pdk/mx25pdk.c index d73e27e..421afea 100644 --- a/board/freescale/mx25pdk/mx25pdk.c +++ b/board/freescale/mx25pdk/mx25pdk.c @@ -21,8 +21,7 @@ #include <asm/io.h> #include <asm/gpio.h> #include <asm/arch/imx-regs.h> -#include <asm/arch/imx25-pinmux.h> -#include <asm/arch/sys_proto.h> +#include <asm/arch/iomux-mx25.h> #include <asm/arch/clock.h> #include <mmc.h> #include <fsl_esdhc.h> @@ -43,29 +42,42 @@ struct fsl_esdhc_cfg esdhc_cfg[1] = { }; #endif
+/* + * FIXME: need to revisit this + * The original code enabled PUE and 100-k pull-down without PKE, so the right + * value here is likely: + * 0 for no pull + * or: + * PAD_CTL_PUS_100K_DOWN for 100-k pull-down + */ +#define FEC_OUT_PAD_CTRL 0 + +#define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \ + PAD_CTL_ODE) + 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); + static const iomux_v3_cfg_t fec_pads[] = { + MX25_PAD_FEC_TX_CLK__FEC_TX_CLK, + MX25_PAD_FEC_RX_DV__FEC_RX_DV, + MX25_PAD_FEC_RDATA0__FEC_RDATA0, + NEW_PAD_CTRL(MX25_PAD_FEC_TDATA0__FEC_TDATA0, FEC_OUT_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_FEC_TX_EN__FEC_TX_EN, FEC_OUT_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_FEC_MDC__FEC_MDC, FEC_OUT_PAD_CTRL), + MX25_PAD_FEC_MDIO__FEC_MDIO, + MX25_PAD_FEC_RDATA1__FEC_RDATA1, + NEW_PAD_CTRL(MX25_PAD_FEC_TDATA1__FEC_TDATA1, FEC_OUT_PAD_CTRL), + + NEW_PAD_CTRL(MX25_PAD_D12__GPIO_4_8, 0), /* FEC_RESET_B */ + NEW_PAD_CTRL(MX25_PAD_A17__GPIO_2_3, 0), /* FEC_ENABLE_B */ + }; + + static const iomux_v3_cfg_t i2c_pads[] = { + NEW_PAD_CTRL(MX25_PAD_I2C1_CLK__I2C1_CLK, I2C_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_I2C1_DAT__I2C1_DAT, I2C_PAD_CTRL), + }; + + imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
/* Assert RESET and ENABLE low */ gpio_direction_output(FEC_RESET_B, 0); @@ -78,10 +90,7 @@ static void mx25pdk_fec_init(void) 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); + imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads)); }
int dram_init(void) @@ -92,9 +101,35 @@ int dram_init(void) return 0; }
+/* + * Set up input pins with hysteresis and 100-k pull-ups + */ +#define UART1_IN_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP) +/* + * FIXME: need to revisit this + * The original code enabled PUE and 100-k pull-down without PKE, so the right + * value here is likely: + * 0 for no pull + * or: + * PAD_CTL_PUS_100K_DOWN for 100-k pull-down + */ +#define UART1_OUT_PAD_CTRL 0 + +static void mx25pdk_uart1_init(void) +{ + static const iomux_v3_cfg_t uart1_pads[] = { + NEW_PAD_CTRL(MX25_PAD_UART1_RXD__UART1_RXD, UART1_IN_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_UART1_TXD__UART1_TXD, UART1_OUT_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_UART1_RTS__UART1_RTS, UART1_OUT_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_UART1_CTS__UART1_CTS, UART1_IN_PAD_CTRL), + }; + + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); +} + int board_early_init_f(void) { - mx25_uart1_init_pins(); + mx25pdk_uart1_init();
return 0; } @@ -131,21 +166,8 @@ int board_late_init(void) #ifdef CONFIG_FSL_ESDHC int board_mmc_getcd(struct mmc *mmc) { - struct iomuxc_mux_ctl *muxctl; - struct iomuxc_pad_ctl *padctl; - u32 gpio_mux_mode = MX25_PIN_MUX_MODE(5); - - /* - * Set up the Card Detect pin. - * - * SD1_GPIO_CD: gpio2_1 is ALT 5 mode of pin A15 - * - */ - muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; - padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; - - writel(gpio_mux_mode, &muxctl->pad_a15); - writel(0x0, &padctl->pad_a15); + /* Set up the Card Detect pin. */ + imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX25_PAD_A15__GPIO_2_1, 0));
gpio_direction_input(CARD_DETECT); return !gpio_get_value(CARD_DETECT); @@ -153,16 +175,16 @@ int board_mmc_getcd(struct mmc *mmc)
int board_mmc_init(bd_t *bis) { - struct iomuxc_mux_ctl *muxctl; - u32 sdhc1_mux_mode = MX25_PIN_MUX_MODE(0) | MX25_PIN_MUX_SION; - - muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; - writel(sdhc1_mux_mode, &muxctl->pad_sd1_cmd); - writel(sdhc1_mux_mode, &muxctl->pad_sd1_clk); - writel(sdhc1_mux_mode, &muxctl->pad_sd1_data0); - writel(sdhc1_mux_mode, &muxctl->pad_sd1_data1); - writel(sdhc1_mux_mode, &muxctl->pad_sd1_data2); - writel(sdhc1_mux_mode, &muxctl->pad_sd1_data3); + static const iomux_v3_cfg_t sdhc1_pads[] = { + NEW_PAD_CTRL(MX25_PAD_SD1_CMD__SD1_CMD, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_CLK__SD1_CLK, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA0__SD1_DATA0, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA1__SD1_DATA1, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA2__SD1_DATA2, NO_PAD_CTRL), + NEW_PAD_CTRL(MX25_PAD_SD1_DATA3__SD1_DATA3, NO_PAD_CTRL), + }; + + imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK); return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);