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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 SMD_FEC_PHY_RST IMX_GPIO_NR(7, 6) | |
40 | ||
41 | static iomux_v3_cfg_t mx53_smd_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_smd_uart_data __initconst = { | |
59 | .flags = IMXUART_HAVE_RTSCTS, | |
60 | }; | |
61 | ||
62 | static inline void mx53_smd_init_uart(void) | |
63 | { | |
64 | imx53_add_imx_uart(0, &mx53_smd_uart_data); | |
65 | imx53_add_imx_uart(1, &mx53_smd_uart_data); | |
66 | imx53_add_imx_uart(2, &mx53_smd_uart_data); | |
67 | } | |
68 | ||
69 | static inline void mx53_smd_fec_reset(void) | |
70 | { | |
71 | int ret; | |
72 | ||
73 | /* reset FEC PHY */ | |
74 | ret = gpio_request(SMD_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(SMD_FEC_PHY_RST, 0); | |
80 | msleep(1); | |
81 | gpio_set_value(SMD_FEC_PHY_RST, 1); | |
82 | } | |
83 | ||
84 | static struct fec_platform_data mx53_smd_fec_data = { | |
85 | .phy = PHY_INTERFACE_MODE_RMII, | |
86 | }; | |
87 | ||
88 | static void __init mx53_smd_board_init(void) | |
89 | { | |
90 | mxc_iomux_v3_setup_multiple_pads(mx53_smd_pads, | |
91 | ARRAY_SIZE(mx53_smd_pads)); | |
92 | mx53_smd_init_uart(); | |
93 | mx53_smd_fec_reset(); | |
94 | imx53_add_fec(&mx53_smd_fec_data); | |
95 | } | |
96 | ||
97 | static void __init mx53_smd_timer_init(void) | |
98 | { | |
99 | mx53_clocks_init(32768, 24000000, 22579200, 0); | |
100 | } | |
101 | ||
102 | static struct sys_timer mx53_smd_timer = { | |
103 | .init = mx53_smd_timer_init, | |
104 | }; | |
105 | ||
106 | MACHINE_START(MX53_SMD, "Freescale MX53 SMD Board") | |
107 | .map_io = mx53_map_io, | |
108 | .init_irq = mx53_init_irq, | |
109 | .init_machine = mx53_smd_board_init, | |
110 | .timer = &mx53_smd_timer, | |
111 | MACHINE_END |