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authorYong Shen <yong.shen@freescale.com>2011-01-12 04:14:46 -0500
committerSascha Hauer <s.hauer@pengutronix.de>2011-01-13 04:02:49 -0500
commit6f12ea4e54b7f213a463e2e03768cf02f0cd77a9 (patch)
tree358603f8cc371bc769a9187da7d0a460ee412cfc /arch/arm/mach-mx5/board-mx53_smd.c
parent65e2e9c8c3eab03f123d6852d14c0a65785c4e51 (diff)
ARM i.MX53 enable SMD board bootup
1. Add Kconfig and Makefile entries 2. Add board definition 3. enable uart and fec for SMD board Signed-off-by: Yong Shen <yong.shen@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx5/board-mx53_smd.c')
-rw-r--r--arch/arm/mach-mx5/board-mx53_smd.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx53_smd.c b/arch/arm/mach-mx5/board-mx53_smd.c
new file mode 100644
index 000000000000..7970f7a48588
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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
41static 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
58static const struct imxuart_platform_data mx53_smd_uart_data __initconst = {
59 .flags = IMXUART_HAVE_RTSCTS,
60};
61
62static 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
69static 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
84static struct fec_platform_data mx53_smd_fec_data = {
85 .phy = PHY_INTERFACE_MODE_RMII,
86};
87
88static 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
97static void __init mx53_smd_timer_init(void)
98{
99 mx53_clocks_init(32768, 24000000, 22579200, 0);
100}
101
102static struct sys_timer mx53_smd_timer = {
103 .init = mx53_smd_timer_init,
104};
105
106MACHINE_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,
111MACHINE_END