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