1 /*
2 * Copyright (C) 1999,2000 Arm Limited
3 * Copyright (C) 2000 Deep Blue Solutions Ltd
4 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
5 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
6 * - add MX31 specific definitions
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #include <linux/mm.h>
20 #include <linux/init.h>
21 #include <linux/err.h>
22 #include <linux/pinctrl/machine.h>
23
24 #include <asm/pgtable.h>
25 #include <asm/mach/map.h>
26
27 #include "common.h"
28 #include "devices/devices-common.h"
29 #include "hardware.h"
30 #include "iomux-v3.h"
31 #include "mx25.h"
32
33 /*
34 * This table defines static virtual address mappings for I/O regions.
35 * These are the mappings common across all MX25 boards.
36 */
37 static struct map_desc mx25_io_desc[] __initdata = {
38 imx_map_entry(MX25, AVIC, MT_DEVICE_NONSHARED),
39 imx_map_entry(MX25, AIPS1, MT_DEVICE_NONSHARED),
40 imx_map_entry(MX25, AIPS2, MT_DEVICE_NONSHARED),
41 };
42
43 /*
44 * This function initializes the memory map. It is called during the
45 * system startup to create static physical to virtual memory mappings
46 * for the IO modules.
47 */
mx25_map_io(void)48 void __init mx25_map_io(void)
49 {
50 iotable_init(mx25_io_desc, ARRAY_SIZE(mx25_io_desc));
51 }
52
imx25_init_early(void)53 void __init imx25_init_early(void)
54 {
55 mxc_set_cpu_type(MXC_CPU_MX25);
56 mxc_iomux_v3_init(MX25_IO_ADDRESS(MX25_IOMUXC_BASE_ADDR));
57 }
58
mx25_init_irq(void)59 void __init mx25_init_irq(void)
60 {
61 mxc_init_irq(MX25_IO_ADDRESS(MX25_AVIC_BASE_ADDR));
62 }
63
64 static struct sdma_platform_data imx25_sdma_pdata __initdata = {
65 .fw_name = "sdma-imx25.bin",
66 };
67
68 static const struct resource imx25_audmux_res[] __initconst = {
69 DEFINE_RES_MEM(MX25_AUDMUX_BASE_ADDR, SZ_16K),
70 };
71
imx25_soc_init(void)72 void __init imx25_soc_init(void)
73 {
74 mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR));
75 mxc_device_init();
76
77 /* i.mx25 has the i.mx35 type gpio */
78 mxc_register_gpio("imx35-gpio", 0, MX25_GPIO1_BASE_ADDR, SZ_16K, MX25_INT_GPIO1, 0);
79 mxc_register_gpio("imx35-gpio", 1, MX25_GPIO2_BASE_ADDR, SZ_16K, MX25_INT_GPIO2, 0);
80 mxc_register_gpio("imx35-gpio", 2, MX25_GPIO3_BASE_ADDR, SZ_16K, MX25_INT_GPIO3, 0);
81 mxc_register_gpio("imx35-gpio", 3, MX25_GPIO4_BASE_ADDR, SZ_16K, MX25_INT_GPIO4, 0);
82
83 pinctrl_provide_dummies();
84 /* i.mx25 has the i.mx35 type sdma */
85 imx_add_imx_sdma("imx35-sdma", MX25_SDMA_BASE_ADDR, MX25_INT_SDMA, &imx25_sdma_pdata);
86 /* i.mx25 has the i.mx31 type audmux */
87 platform_device_register_simple("imx31-audmux", 0, imx25_audmux_res,
88 ARRAY_SIZE(imx25_audmux_res));
89 }
90