| Yong Shen | 3b18c34 | 2011-01-12 17:14:47 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. |
| 3 | */ |
| 4 | |
| 5 | /* |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | |
| 16 | * You should have received a copy of the GNU General Public License along |
| 17 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | */ |
| 20 | |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/clk.h> |
| 23 | #include <linux/fec.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <linux/gpio.h> |
| 26 | |
| 27 | #include <mach/common.h> |
| 28 | #include <mach/hardware.h> |
| 29 | #include <mach/imx-uart.h> |
| 30 | #include <mach/iomux-mx53.h> |
| 31 | |
| 32 | #include <asm/mach-types.h> |
| 33 | #include <asm/mach/arch.h> |
| 34 | #include <asm/mach/time.h> |
| 35 | |
| 36 | #include "crm_regs.h" |
| 37 | #include "devices-imx53.h" |
| 38 | |
| 39 | #define LOCO_FEC_PHY_RST IMX_GPIO_NR(7, 6) |
| 40 | |
| 41 | static iomux_v3_cfg_t mx53_loco_pads[] = { |
| 42 | MX53_PAD_CSI0_D10__UART1_TXD, |
| 43 | MX53_PAD_CSI0_D11__UART1_RXD, |
| 44 | MX53_PAD_ATA_DIOW__UART1_TXD, |
| 45 | MX53_PAD_ATA_DMACK__UART1_RXD, |
| 46 | |
| 47 | MX53_PAD_ATA_BUFFER_EN__UART2_RXD, |
| 48 | MX53_PAD_ATA_DMARQ__UART2_TXD, |
| 49 | MX53_PAD_ATA_DIOR__UART2_RTS, |
| 50 | MX53_PAD_ATA_INTRQ__UART2_CTS, |
| 51 | |
| 52 | MX53_PAD_ATA_CS_0__UART3_TXD, |
| 53 | MX53_PAD_ATA_CS_1__UART3_RXD, |
| 54 | MX53_PAD_ATA_DA_1__UART3_CTS, |
| 55 | MX53_PAD_ATA_DA_2__UART3_RTS, |
| 56 | }; |
| 57 | |
| 58 | static const struct imxuart_platform_data mx53_loco_uart_data __initconst = { |
| 59 | .flags = IMXUART_HAVE_RTSCTS, |
| 60 | }; |
| 61 | |
| 62 | static inline void mx53_loco_init_uart(void) |
| 63 | { |
| 64 | imx53_add_imx_uart(0, &mx53_loco_uart_data); |
| 65 | imx53_add_imx_uart(1, &mx53_loco_uart_data); |
| 66 | imx53_add_imx_uart(2, &mx53_loco_uart_data); |
| 67 | } |
| 68 | |
| 69 | static inline void mx53_loco_fec_reset(void) |
| 70 | { |
| 71 | int ret; |
| 72 | |
| 73 | /* reset FEC PHY */ |
| 74 | ret = gpio_request(LOCO_FEC_PHY_RST, "fec-phy-reset"); |
| 75 | if (ret) { |
| 76 | printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret); |
| 77 | return; |
| 78 | } |
| 79 | gpio_direction_output(LOCO_FEC_PHY_RST, 0); |
| 80 | msleep(1); |
| 81 | gpio_set_value(LOCO_FEC_PHY_RST, 1); |
| 82 | } |
| 83 | |
| 84 | static struct fec_platform_data mx53_loco_fec_data = { |
| 85 | .phy = PHY_INTERFACE_MODE_RMII, |
| 86 | }; |
| 87 | |
| 88 | static void __init mx53_loco_board_init(void) |
| 89 | { |
| 90 | mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads, |
| 91 | ARRAY_SIZE(mx53_loco_pads)); |
| 92 | mx53_loco_init_uart(); |
| 93 | mx53_loco_fec_reset(); |
| 94 | imx53_add_fec(&mx53_loco_fec_data); |
| 95 | } |
| 96 | |
| 97 | static void __init mx53_loco_timer_init(void) |
| 98 | { |
| 99 | mx53_clocks_init(32768, 24000000, 0, 0); |
| 100 | } |
| 101 | |
| 102 | static struct sys_timer mx53_loco_timer = { |
| 103 | .init = mx53_loco_timer_init, |
| 104 | }; |
| 105 | |
| 106 | MACHINE_START(MX53_LOCO, "Freescale MX53 LOCO Board") |
| 107 | .map_io = mx53_map_io, |
| 108 | .init_irq = mx53_init_irq, |
| 109 | .init_machine = mx53_loco_board_init, |
| 110 | .timer = &mx53_loco_timer, |
| 111 | MACHINE_END |