diff options
Diffstat (limited to 'arch/arm/mach-mxs/mach-mx28evk.c')
| -rw-r--r-- | arch/arm/mach-mxs/mach-mx28evk.c | 237 |
1 files changed, 198 insertions, 39 deletions
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c index 8e2c5975001..08002d02267 100644 --- a/arch/arm/mach-mxs/mach-mx28evk.c +++ b/arch/arm/mach-mxs/mach-mx28evk.c @@ -28,54 +28,93 @@ #include "devices-mx28.h" #include "gpio.h" +#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13) #define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15) +#define MX28EVK_BL_ENABLE MXS_GPIO_NR(3, 18) +#define MX28EVK_LCD_ENABLE MXS_GPIO_NR(3, 30) #define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13) static const iomux_cfg_t mx28evk_pads[] __initconst = { /* duart */ - MX28_PAD_PWM0__DUART_RX | - (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), - MX28_PAD_PWM1__DUART_TX | - (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), + MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL, + MX28_PAD_PWM1__DUART_TX | MXS_PAD_CTRL, + /* auart0 */ + MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL, + MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL, + MX28_PAD_AUART0_CTS__AUART0_CTS | MXS_PAD_CTRL, + MX28_PAD_AUART0_RTS__AUART0_RTS | MXS_PAD_CTRL, + /* auart3 */ + MX28_PAD_AUART3_RX__AUART3_RX | MXS_PAD_CTRL, + MX28_PAD_AUART3_TX__AUART3_TX | MXS_PAD_CTRL, + MX28_PAD_AUART3_CTS__AUART3_CTS | MXS_PAD_CTRL, + MX28_PAD_AUART3_RTS__AUART3_RTS | MXS_PAD_CTRL, + +#define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP) /* fec0 */ - MX28_PAD_ENET0_MDC__ENET0_MDC | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_MDIO__ENET0_MDIO | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_RXD0__ENET0_RXD0 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_RXD1__ENET0_RXD1 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_TXD0__ENET0_TXD0 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_TXD1__ENET0_TXD1 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET_CLK__CLKCTRL_ENET | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC, + MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC, + MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC, + MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC, + MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC, + MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC, + MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC, + MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC, + MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC, /* fec1 */ - MX28_PAD_ENET0_CRS__ENET1_RX_EN | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_RXD2__ENET1_RXD0 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_RXD3__ENET1_RXD1 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_COL__ENET1_TX_EN | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_TXD2__ENET1_TXD0 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), - MX28_PAD_ENET0_TXD3__ENET1_TXD1 | - (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), + MX28_PAD_ENET0_CRS__ENET1_RX_EN | MXS_PAD_FEC, + MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MXS_PAD_FEC, + MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MXS_PAD_FEC, + MX28_PAD_ENET0_COL__ENET1_TX_EN | MXS_PAD_FEC, + MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MXS_PAD_FEC, + MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MXS_PAD_FEC, /* phy power line */ - MX28_PAD_SSP1_DATA3__GPIO_2_15 | - (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), + MX28_PAD_SSP1_DATA3__GPIO_2_15 | MXS_PAD_CTRL, /* phy reset line */ - MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | - (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), + MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | MXS_PAD_CTRL, + + /* flexcan0 */ + MX28_PAD_GPMI_RDY2__CAN0_TX, + MX28_PAD_GPMI_RDY3__CAN0_RX, + /* flexcan1 */ + MX28_PAD_GPMI_CE2N__CAN1_TX, + MX28_PAD_GPMI_CE3N__CAN1_RX, + /* transceiver power control */ + MX28_PAD_SSP1_CMD__GPIO_2_13, + + /* mxsfb (lcdif) */ + MX28_PAD_LCD_D00__LCD_D0 | MXS_PAD_CTRL, + MX28_PAD_LCD_D01__LCD_D1 | MXS_PAD_CTRL, + MX28_PAD_LCD_D02__LCD_D2 | MXS_PAD_CTRL, + MX28_PAD_LCD_D03__LCD_D3 | MXS_PAD_CTRL, + MX28_PAD_LCD_D04__LCD_D4 | MXS_PAD_CTRL, + MX28_PAD_LCD_D05__LCD_D5 | MXS_PAD_CTRL, + MX28_PAD_LCD_D06__LCD_D6 | MXS_PAD_CTRL, + MX28_PAD_LCD_D07__LCD_D7 | MXS_PAD_CTRL, + MX28_PAD_LCD_D08__LCD_D8 | MXS_PAD_CTRL, + MX28_PAD_LCD_D09__LCD_D9 | MXS_PAD_CTRL, + MX28_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL, + MX28_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL, + MX28_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL, + MX28_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL, + MX28_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL, + MX28_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL, + MX28_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL, + MX28_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL, + MX28_PAD_LCD_D18__LCD_D18 | MXS_PAD_CTRL, + MX28_PAD_LCD_D19__LCD_D19 | MXS_PAD_CTRL, + MX28_PAD_LCD_D20__LCD_D20 | MXS_PAD_CTRL, + MX28_PAD_LCD_D21__LCD_D21 | MXS_PAD_CTRL, + MX28_PAD_LCD_D22__LCD_D22 | MXS_PAD_CTRL, + MX28_PAD_LCD_D23__LCD_D23 | MXS_PAD_CTRL, + MX28_PAD_LCD_RD_E__LCD_VSYNC | MXS_PAD_CTRL, + MX28_PAD_LCD_WR_RWN__LCD_HSYNC | MXS_PAD_CTRL, + MX28_PAD_LCD_RS__LCD_DOTCLK | MXS_PAD_CTRL, + MX28_PAD_LCD_CS__LCD_ENABLE | MXS_PAD_CTRL, + /* LCD panel enable */ + MX28_PAD_LCD_RESET__GPIO_3_30 | MXS_PAD_CTRL, + /* backlight control */ + MX28_PAD_PWM2__GPIO_3_18 | MXS_PAD_CTRL, }; /* fec */ @@ -119,7 +158,7 @@ static void __init mx28evk_fec_reset(void) gpio_set_value(MX28EVK_FEC_PHY_RESET, 1); } -static struct fec_platform_data mx28_fec_pdata[] = { +static struct fec_platform_data mx28_fec_pdata[] __initdata = { { /* fec0 */ .phy = PHY_INTERFACE_MODE_RMII, @@ -129,15 +168,135 @@ static struct fec_platform_data mx28_fec_pdata[] = { }, }; +static int __init mx28evk_fec_get_mac(void) +{ + int i; + u32 val; + const u32 *ocotp = mxs_get_ocotp(); + + if (!ocotp) + goto error; + + /* + * OCOTP only stores the last 4 octets for each mac address, + * so hard-code Freescale OUI (00:04:9f) here. + */ + for (i = 0; i < 2; i++) { + val = ocotp[i * 4]; + mx28_fec_pdata[i].mac[0] = 0x00; + mx28_fec_pdata[i].mac[1] = 0x04; + mx28_fec_pdata[i].mac[2] = 0x9f; + mx28_fec_pdata[i].mac[3] = (val >> 16) & 0xff; + mx28_fec_pdata[i].mac[4] = (val >> 8) & 0xff; + mx28_fec_pdata[i].mac[5] = (val >> 0) & 0xff; + } + + return 0; + +error: + pr_err("%s: timeout when reading fec mac from OCOTP\n", __func__); + return -ETIMEDOUT; +} + +/* + * MX28EVK_FLEXCAN_SWITCH is shared between both flexcan controllers + */ +static int flexcan0_en, flexcan1_en; + +static void mx28evk_flexcan_switch(void) +{ + if (flexcan0_en || flexcan1_en) + gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 1); + else + gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 0); +} + +static void mx28evk_flexcan0_switch(int enable) +{ + flexcan0_en = enable; + mx28evk_flexcan_switch(); +} + +static void mx28evk_flexcan1_switch(int enable) +{ + flexcan1_en = enable; + mx28evk_flexcan_switch(); +} + +static const struct flexcan_platform_data + mx28evk_flexcan_pdata[] __initconst = { + { + .transceiver_switch = mx28evk_flexcan0_switch, + }, { + .transceiver_switch = mx28evk_flexcan1_switch, + } +}; + +/* mxsfb (lcdif) */ +static struct fb_videomode mx28evk_video_modes[] = { + { + .name = "Seiko-43WVF1G", + .refresh = 60, + .xres = 800, + .yres = 480, + .pixclock = 29851, /* picosecond (33.5 MHz) */ + .left_margin = 89, + .right_margin = 164, + .upper_margin = 23, + .lower_margin = 10, + .hsync_len = 10, + .vsync_len = 10, + .sync = FB_SYNC_DATA_ENABLE_HIGH_ACT | + FB_SYNC_DOTCLK_FAILING_ACT, + }, +}; + +static const struct mxsfb_platform_data mx28evk_mxsfb_pdata __initconst = { + .mode_list = mx28evk_video_modes, + .mode_count = ARRAY_SIZE(mx28evk_video_modes), + .default_bpp = 32, + .ld_intf_width = STMLCDIF_24BIT, +}; + static void __init mx28evk_init(void) { + int ret; + mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads)); mx28_add_duart(); + mx28_add_auart0(); + mx28_add_auart3(); + + if (mx28evk_fec_get_mac()) + pr_warn("%s: failed on fec mac setup\n", __func__); mx28evk_fec_reset(); mx28_add_fec(0, &mx28_fec_pdata[0]); mx28_add_fec(1, &mx28_fec_pdata[1]); + + ret = gpio_request_one(MX28EVK_FLEXCAN_SWITCH, GPIOF_DIR_OUT, + "flexcan-switch"); + if (ret) { + pr_err("failed to request gpio flexcan-switch: %d\n", ret); + } else { + mx28_add_flexcan(0, &mx28evk_flexcan_pdata[0]); + mx28_add_flexcan(1, &mx28evk_flexcan_pdata[1]); + } + + ret = gpio_request_one(MX28EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable"); + if (ret) + pr_warn("failed to request gpio lcd-enable: %d\n", ret); + else + gpio_set_value(MX28EVK_LCD_ENABLE, 1); + + ret = gpio_request_one(MX28EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable"); + if (ret) + pr_warn("failed to request gpio bl-enable: %d\n", ret); + else + gpio_set_value(MX28EVK_BL_ENABLE, 1); + + mx28_add_mxsfb(&mx28evk_mxsfb_pdata); } static void __init mx28evk_timer_init(void) |