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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * linux/arch/arm/mach-omap2/devices.c
4 *
5 * OMAP2 platform device setup/initialization
6 */
7
8#include <linux/kernel.h>
9#include <linux/init.h>
10#include <linux/platform_device.h>
11#include <linux/io.h>
12#include <linux/clk.h>
13#include <linux/dma-mapping.h>
14#include <linux/err.h>
15#include <linux/slab.h>
16#include <linux/of.h>
17
18#include <asm/mach-types.h>
19#include <asm/mach/map.h>
20
21#include <linux/omap-dma.h>
22
23#include "iomap.h"
24#include "omap_hwmod.h"
25#include "omap_device.h"
26
27#include "soc.h"
28#include "common.h"
29#include "control.h"
30#include "display.h"
31
32#define L3_MODULES_MAX_LEN 12
33#define L3_MODULES 3
34
35/*-------------------------------------------------------------------------*/
36
37#if IS_ENABLED(CONFIG_VIDEO_OMAP2_VOUT)
38#if IS_ENABLED(CONFIG_FB_OMAP2)
39static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
40};
41#else
42static struct resource omap_vout_resource[2] = {
43};
44#endif
45
46static u64 omap_vout_dma_mask = DMA_BIT_MASK(32);
47
48static struct platform_device omap_vout_device = {
49 .name = "omap_vout",
50 .num_resources = ARRAY_SIZE(omap_vout_resource),
51 .resource = &omap_vout_resource[0],
52 .id = -1,
53 .dev = {
54 .dma_mask = &omap_vout_dma_mask,
55 .coherent_dma_mask = DMA_BIT_MASK(32),
56 },
57};
58
59int __init omap_init_vout(void)
60{
61 return platform_device_register(&omap_vout_device);
62}
63#else
64int __init omap_init_vout(void) { return 0; }
65#endif
1/*
2 * linux/arch/arm/mach-omap2/devices.c
3 *
4 * OMAP2 platform device setup/initialization
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#include <linux/gpio.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/platform_device.h>
15#include <linux/io.h>
16#include <linux/clk.h>
17#include <linux/err.h>
18#include <linux/slab.h>
19#include <linux/of.h>
20#include <linux/pinctrl/machine.h>
21
22#include <asm/mach-types.h>
23#include <asm/mach/map.h>
24
25#include <linux/omap-dma.h>
26
27#include "iomap.h"
28#include "omap_hwmod.h"
29#include "omap_device.h"
30
31#include "soc.h"
32#include "common.h"
33#include "mux.h"
34#include "control.h"
35#include "display.h"
36
37#define L3_MODULES_MAX_LEN 12
38#define L3_MODULES 3
39
40static int __init omap3_l3_init(void)
41{
42 struct omap_hwmod *oh;
43 struct platform_device *pdev;
44 char oh_name[L3_MODULES_MAX_LEN];
45
46 /*
47 * To avoid code running on other OMAPs in
48 * multi-omap builds
49 */
50 if (!(cpu_is_omap34xx()) || of_have_populated_dt())
51 return -ENODEV;
52
53 snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
54
55 oh = omap_hwmod_lookup(oh_name);
56
57 if (!oh)
58 pr_err("could not look up %s\n", oh_name);
59
60 pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
61
62 WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
63
64 return PTR_ERR_OR_ZERO(pdev);
65}
66omap_postcore_initcall(omap3_l3_init);
67
68static inline void omap_init_sti(void) {}
69
70#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
71
72#include <linux/platform_data/spi-omap2-mcspi.h>
73
74static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
75{
76 struct platform_device *pdev;
77 char *name = "omap2_mcspi";
78 struct omap2_mcspi_platform_config *pdata;
79 static int spi_num;
80 struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
81
82 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
83 if (!pdata) {
84 pr_err("Memory allocation for McSPI device failed\n");
85 return -ENOMEM;
86 }
87
88 pdata->num_cs = mcspi_attrib->num_chipselect;
89 switch (oh->class->rev) {
90 case OMAP2_MCSPI_REV:
91 case OMAP3_MCSPI_REV:
92 pdata->regs_offset = 0;
93 break;
94 case OMAP4_MCSPI_REV:
95 pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
96 break;
97 default:
98 pr_err("Invalid McSPI Revision value\n");
99 kfree(pdata);
100 return -EINVAL;
101 }
102
103 spi_num++;
104 pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
105 WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
106 name, oh->name);
107 kfree(pdata);
108 return 0;
109}
110
111static void omap_init_mcspi(void)
112{
113 omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
114}
115
116#else
117static inline void omap_init_mcspi(void) {}
118#endif
119
120/**
121 * omap_init_rng - bind the RNG hwmod to the RNG omap_device
122 *
123 * Bind the RNG hwmod to the RNG omap_device. No return value.
124 */
125static void omap_init_rng(void)
126{
127 struct omap_hwmod *oh;
128 struct platform_device *pdev;
129
130 oh = omap_hwmod_lookup("rng");
131 if (!oh)
132 return;
133
134 pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
135 WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
136}
137
138static void __init omap_init_sham(void)
139{
140 struct omap_hwmod *oh;
141 struct platform_device *pdev;
142
143 oh = omap_hwmod_lookup("sham");
144 if (!oh)
145 return;
146
147 pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
148 WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
149}
150
151static void __init omap_init_aes(void)
152{
153 struct omap_hwmod *oh;
154 struct platform_device *pdev;
155
156 oh = omap_hwmod_lookup("aes");
157 if (!oh)
158 return;
159
160 pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
161 WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
162}
163
164/*-------------------------------------------------------------------------*/
165
166#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
167 defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
168#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
169static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
170};
171#else
172static struct resource omap_vout_resource[2] = {
173};
174#endif
175
176static struct platform_device omap_vout_device = {
177 .name = "omap_vout",
178 .num_resources = ARRAY_SIZE(omap_vout_resource),
179 .resource = &omap_vout_resource[0],
180 .id = -1,
181};
182
183int __init omap_init_vout(void)
184{
185 return platform_device_register(&omap_vout_device);
186}
187#else
188int __init omap_init_vout(void) { return 0; }
189#endif
190
191/*-------------------------------------------------------------------------*/
192
193static int __init omap2_init_devices(void)
194{
195 /* Enable dummy states for those platforms without pinctrl support */
196 if (!of_have_populated_dt())
197 pinctrl_provide_dummies();
198
199 /* If dtb is there, the devices will be created dynamically */
200 if (!of_have_populated_dt()) {
201 /*
202 * please keep these calls, and their implementations above,
203 * in alphabetical order so they're easier to sort through.
204 */
205 omap_init_mcspi();
206 omap_init_sham();
207 omap_init_aes();
208 omap_init_rng();
209 }
210 omap_init_sti();
211
212 return 0;
213}
214omap_arch_initcall(omap2_init_devices);
215
216static int __init omap_gpmc_init(void)
217{
218 struct omap_hwmod *oh;
219 struct platform_device *pdev;
220 char *oh_name = "gpmc";
221
222 /*
223 * if the board boots up with a populated DT, do not
224 * manually add the device from this initcall
225 */
226 if (of_have_populated_dt())
227 return -ENODEV;
228
229 oh = omap_hwmod_lookup(oh_name);
230 if (!oh) {
231 pr_err("Could not look up %s\n", oh_name);
232 return -ENODEV;
233 }
234
235 pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
236 WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
237
238 return PTR_ERR_OR_ZERO(pdev);
239}
240omap_postcore_initcall(omap_gpmc_init);