projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 4afbbb7c SG |
1 | /* |
| 2 | * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License as published by | |
| 6 | * the Free Software Foundation; either version 2 of the License, or | |
| 7 | * (at your option) any later version. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/delay.h> | |
| 16 | #include <linux/platform_device.h> | |
| 17 | #include <linux/gpio.h> | |
| 18 | #include <linux/irq.h> | |
| 19 | #include <linux/clk.h> | |
| 20 | ||
| 21 | #include <asm/mach-types.h> | |
| 22 | #include <asm/mach/arch.h> | |
| 23 | #include <asm/mach/time.h> | |
| 24 | ||
| 25 | #include <mach/common.h> | |
| 26 | #include <mach/iomux-mx28.h> | |
| 27 | ||
| 28 | #include "devices-mx28.h" | |
| 29 | #include "gpio.h" | |
| 30 | ||
| 31 | #define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15) | |
| 32 | #define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13) | |
| 33 | ||
| 34 | static const iomux_cfg_t mx28evk_pads[] __initconst = { | |
| 35 | /* duart */ | |
| 36 | MX28_PAD_PWM0__DUART_RX | | |
| 37 | (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), | |
| 38 | MX28_PAD_PWM1__DUART_TX | | |
| 39 | (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), | |
| 40 | ||
| 41 | /* fec0 */ | |
| 42 | MX28_PAD_ENET0_MDC__ENET0_MDC | | |
| 43 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 44 | MX28_PAD_ENET0_MDIO__ENET0_MDIO | | |
| 45 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 46 | MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | | |
| 47 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 48 | MX28_PAD_ENET0_RXD0__ENET0_RXD0 | | |
| 49 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 50 | MX28_PAD_ENET0_RXD1__ENET0_RXD1 | | |
| 51 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 52 | MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | | |
| 53 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 54 | MX28_PAD_ENET0_TXD0__ENET0_TXD0 | | |
| 55 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 56 | MX28_PAD_ENET0_TXD1__ENET0_TXD1 | | |
| 57 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 58 | MX28_PAD_ENET_CLK__CLKCTRL_ENET | | |
| 59 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 48f76ed1 SG |
60 | /* fec1 */ |
| 61 | MX28_PAD_ENET0_CRS__ENET1_RX_EN | | |
| 62 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 63 | MX28_PAD_ENET0_RXD2__ENET1_RXD0 | | |
| 64 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 65 | MX28_PAD_ENET0_RXD3__ENET1_RXD1 | | |
| 66 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 67 | MX28_PAD_ENET0_COL__ENET1_TX_EN | | |
| 68 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 69 | MX28_PAD_ENET0_TXD2__ENET1_TXD0 | | |
| 70 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 71 | MX28_PAD_ENET0_TXD3__ENET1_TXD1 | | |
| 72 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
| 4afbbb7c SG |
73 | /* phy power line */ |
| 74 | MX28_PAD_SSP1_DATA3__GPIO_2_15 | | |
| 75 | (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), | |
| 76 | /* phy reset line */ | |
| 77 | MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | | |
| 78 | (MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), | |
| 79 | }; | |
| 80 | ||
| 81 | /* fec */ | |
| 82 | static void __init mx28evk_fec_reset(void) | |
| 83 | { | |
| 84 | int ret; | |
| 85 | struct clk *clk; | |
| 86 | ||
| 87 | /* Enable fec phy clock */ | |
| 88 | clk = clk_get_sys("pll2", NULL); | |
| 89 | if (!IS_ERR(clk)) | |
| 90 | clk_enable(clk); | |
| 91 | ||
| 92 | /* Power up fec phy */ | |
| 93 | ret = gpio_request(MX28EVK_FEC_PHY_POWER, "fec-phy-power"); | |
| 94 | if (ret) { | |
| 95 | pr_err("Failed to request gpio fec-phy-%s: %d\n", "power", ret); | |
| 96 | return; | |
| 97 | } | |
| 98 | ||
| 99 | ret = gpio_direction_output(MX28EVK_FEC_PHY_POWER, 0); | |
| 100 | if (ret) { | |
| 101 | pr_err("Failed to drive gpio fec-phy-%s: %d\n", "power", ret); | |
| 102 | return; | |
| 103 | } | |
| 104 | ||
| 105 | /* Reset fec phy */ | |
| 106 | ret = gpio_request(MX28EVK_FEC_PHY_RESET, "fec-phy-reset"); | |
| 107 | if (ret) { | |
| 108 | pr_err("Failed to request gpio fec-phy-%s: %d\n", "reset", ret); | |
| 109 | return; | |
| 110 | } | |
| 111 | ||
| 112 | gpio_direction_output(MX28EVK_FEC_PHY_RESET, 0); | |
| 113 | if (ret) { | |
| 114 | pr_err("Failed to drive gpio fec-phy-%s: %d\n", "reset", ret); | |
| 115 | return; | |
| 116 | } | |
| 117 | ||
| 118 | mdelay(1); | |
| 119 | gpio_set_value(MX28EVK_FEC_PHY_RESET, 1); | |
| 120 | } | |
| 121 | ||
| 48f76ed1 SG |
122 | static struct fec_platform_data mx28_fec_pdata[] = { |
| 123 | { | |
| 124 | /* fec0 */ | |
| 125 | .phy = PHY_INTERFACE_MODE_RMII, | |
| 126 | }, { | |
| 127 | /* fec1 */ | |
| 128 | .phy = PHY_INTERFACE_MODE_RMII, | |
| 129 | }, | |
| 4afbbb7c SG |
130 | }; |
| 131 | ||
| 132 | static void __init mx28evk_init(void) | |
| 133 | { | |
| 134 | mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads)); | |
| 135 | ||
| 136 | mx28_add_duart(); | |
| 137 | ||
| 138 | mx28evk_fec_reset(); | |
| 48f76ed1 SG |
139 | mx28_add_fec(0, &mx28_fec_pdata[0]); |
| 140 | mx28_add_fec(1, &mx28_fec_pdata[1]); | |
| 4afbbb7c SG |
141 | } |
| 142 | ||
| 143 | static void __init mx28evk_timer_init(void) | |
| 144 | { | |
| 145 | mx28_clocks_init(); | |
| 146 | } | |
| 147 | ||
| 148 | static struct sys_timer mx28evk_timer = { | |
| 149 | .init = mx28evk_timer_init, | |
| 150 | }; | |
| 151 | ||
| 152 | MACHINE_START(MX28EVK, "Freescale MX28 EVK") | |
| 153 | /* Maintainer: Freescale Semiconductor, Inc. */ | |
| 154 | .map_io = mx28_map_io, | |
| 155 | .init_irq = mx28_init_irq, | |
| 156 | .init_machine = mx28evk_init, | |
| 157 | .timer = &mx28evk_timer, | |
| 158 | MACHINE_END |