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6a08e1e6 TL |
1 | /* |
2 | * Legacy platform_data quirks | |
3 | * | |
4 | * Copyright (C) 2013 Texas Instruments | |
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 version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | #include <linux/clk.h> | |
5f0a2c69 | 11 | #include <linux/gpio.h> |
6a08e1e6 TL |
12 | #include <linux/init.h> |
13 | #include <linux/kernel.h> | |
8651bd8c | 14 | #include <linux/of_platform.h> |
5f0a2c69 | 15 | #include <linux/wl12xx.h> |
6a08e1e6 | 16 | |
30a69ef7 TL |
17 | #include <linux/platform_data/pinctrl-single.h> |
18 | ||
6a08e1e6 TL |
19 | #include "common.h" |
20 | #include "common-board-devices.h" | |
21 | #include "dss-common.h" | |
faf4bd47 | 22 | #include "control.h" |
6a08e1e6 TL |
23 | |
24 | struct pdata_init { | |
25 | const char *compatible; | |
26 | void (*fn)(void); | |
27 | }; | |
28 | ||
fa590c92 | 29 | struct of_dev_auxdata omap_auxdata_lookup[]; |
dad12d11 | 30 | static struct twl4030_gpio_platform_data twl_gpio_auxdata; |
fa590c92 | 31 | |
3e7a3185 TL |
32 | /* |
33 | * Create alias for USB host PHY clock. | |
34 | * Remove this when clock phandle can be provided via DT | |
35 | */ | |
36 | static void __init __used legacy_init_ehci_clk(char *clkname) | |
37 | { | |
38 | int ret; | |
39 | ||
40 | ret = clk_add_alias("main_clk", NULL, clkname, NULL); | |
41 | if (ret) | |
42 | pr_err("%s:Failed to add main_clk alias to %s :%d\n", | |
43 | __func__, clkname, ret); | |
44 | } | |
45 | ||
5f0a2c69 TL |
46 | #if IS_ENABLED(CONFIG_WL12XX) |
47 | ||
48 | static struct wl12xx_platform_data wl12xx __initdata; | |
49 | ||
50 | static void __init __used legacy_init_wl12xx(unsigned ref_clock, | |
51 | unsigned tcxo_clock, | |
52 | int gpio) | |
53 | { | |
54 | int res; | |
55 | ||
56 | wl12xx.board_ref_clock = ref_clock; | |
57 | wl12xx.board_tcxo_clock = tcxo_clock; | |
58 | wl12xx.irq = gpio_to_irq(gpio); | |
59 | ||
60 | res = wl12xx_set_platform_data(&wl12xx); | |
61 | if (res) { | |
62 | pr_err("error setting wl12xx data: %d\n", res); | |
63 | return; | |
64 | } | |
65 | } | |
66 | #else | |
67 | static inline void legacy_init_wl12xx(unsigned ref_clock, | |
68 | unsigned tcxo_clock, | |
69 | int gpio) | |
70 | { | |
71 | } | |
72 | #endif | |
73 | ||
fa590c92 TL |
74 | #ifdef CONFIG_MACH_NOKIA_N8X0 |
75 | static void __init omap2420_n8x0_legacy_init(void) | |
76 | { | |
77 | omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); | |
78 | } | |
79 | #else | |
80 | #define omap2420_n8x0_legacy_init NULL | |
81 | #endif | |
82 | ||
faf4bd47 AK |
83 | #ifdef CONFIG_ARCH_OMAP3 |
84 | static void __init hsmmc2_internal_input_clk(void) | |
85 | { | |
86 | u32 reg; | |
87 | ||
88 | reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); | |
89 | reg |= OMAP2_MMCSDIO2ADPCLKISEL; | |
90 | omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); | |
91 | } | |
15c9887e JMC |
92 | |
93 | static void __init omap3_igep0020_legacy_init(void) | |
94 | { | |
95 | omap3_igep2_display_init_of(); | |
96 | } | |
79b39f79 TL |
97 | |
98 | static void __init omap3_evm_legacy_init(void) | |
99 | { | |
100 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149); | |
101 | } | |
102 | ||
103 | static void __init omap3_zoom_legacy_init(void) | |
104 | { | |
105 | legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162); | |
106 | } | |
faf4bd47 AK |
107 | #endif /* CONFIG_ARCH_OMAP3 */ |
108 | ||
3e7a3185 TL |
109 | #ifdef CONFIG_ARCH_OMAP4 |
110 | static void __init omap4_sdp_legacy_init(void) | |
111 | { | |
112 | omap_4430sdp_display_init_of(); | |
5f0a2c69 TL |
113 | legacy_init_wl12xx(WL12XX_REFCLOCK_26, |
114 | WL12XX_TCXOCLOCK_26, 53); | |
3e7a3185 TL |
115 | } |
116 | ||
117 | static void __init omap4_panda_legacy_init(void) | |
118 | { | |
119 | omap4_panda_display_init_of(); | |
120 | legacy_init_ehci_clk("auxclk3_ck"); | |
5f0a2c69 | 121 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53); |
3e7a3185 TL |
122 | } |
123 | #endif | |
124 | ||
125 | #ifdef CONFIG_SOC_OMAP5 | |
126 | static void __init omap5_uevm_legacy_init(void) | |
127 | { | |
128 | legacy_init_ehci_clk("auxclk1_ck"); | |
129 | } | |
130 | #endif | |
131 | ||
30a69ef7 TL |
132 | static struct pcs_pdata pcs_pdata; |
133 | ||
134 | void omap_pcs_legacy_init(int irq, void (*rearm)(void)) | |
135 | { | |
136 | pcs_pdata.irq = irq; | |
137 | pcs_pdata.rearm = rearm; | |
138 | } | |
139 | ||
dad12d11 TL |
140 | /* |
141 | * GPIOs for TWL are initialized by the I2C bus and need custom | |
142 | * handing until DSS has device tree bindings. | |
143 | */ | |
144 | void omap_auxdata_legacy_init(struct device *dev) | |
145 | { | |
146 | if (dev->platform_data) | |
147 | return; | |
148 | ||
149 | if (strcmp("twl4030-gpio", dev_name(dev))) | |
150 | return; | |
151 | ||
152 | dev->platform_data = &twl_gpio_auxdata; | |
153 | } | |
154 | ||
036582f7 TL |
155 | /* |
156 | * Few boards still need auxdata populated before we populate | |
157 | * the dev entries in of_platform_populate(). | |
158 | */ | |
159 | static struct pdata_init auxdata_quirks[] __initdata = { | |
fa590c92 TL |
160 | #ifdef CONFIG_SOC_OMAP2420 |
161 | { "nokia,n800", omap2420_n8x0_legacy_init, }, | |
162 | { "nokia,n810", omap2420_n8x0_legacy_init, }, | |
163 | { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, | |
164 | #endif | |
036582f7 TL |
165 | { /* sentinel */ }, |
166 | }; | |
167 | ||
8651bd8c | 168 | struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { |
036582f7 TL |
169 | #ifdef CONFIG_MACH_NOKIA_N8X0 |
170 | OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), | |
171 | #endif | |
30a69ef7 TL |
172 | #ifdef CONFIG_ARCH_OMAP3 |
173 | OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata), | |
174 | OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata), | |
175 | #endif | |
176 | #ifdef CONFIG_ARCH_OMAP4 | |
177 | OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata), | |
178 | OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata), | |
179 | #endif | |
8651bd8c TL |
180 | { /* sentinel */ }, |
181 | }; | |
182 | ||
036582f7 TL |
183 | /* |
184 | * Few boards still need to initialize some legacy devices with | |
185 | * platform data until the drivers support device tree. | |
186 | */ | |
6a08e1e6 | 187 | static struct pdata_init pdata_quirks[] __initdata = { |
faf4bd47 | 188 | #ifdef CONFIG_ARCH_OMAP3 |
edd5eb4e | 189 | { "nokia,omap3-n900", hsmmc2_internal_input_clk, }, |
faf4bd47 AK |
190 | { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, |
191 | { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, | |
15c9887e | 192 | { "isee,omap3-igep0020", omap3_igep0020_legacy_init, }, |
79b39f79 TL |
193 | { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, |
194 | { "ti,omap3-zoom3", omap3_zoom_legacy_init, }, | |
faf4bd47 | 195 | #endif |
3e7a3185 TL |
196 | #ifdef CONFIG_ARCH_OMAP4 |
197 | { "ti,omap4-sdp", omap4_sdp_legacy_init, }, | |
198 | { "ti,omap4-panda", omap4_panda_legacy_init, }, | |
199 | #endif | |
200 | #ifdef CONFIG_SOC_OMAP5 | |
201 | { "ti,omap5-uevm", omap5_uevm_legacy_init, }, | |
202 | #endif | |
6a08e1e6 TL |
203 | { /* sentinel */ }, |
204 | }; | |
205 | ||
036582f7 | 206 | static void pdata_quirks_check(struct pdata_init *quirks) |
6a08e1e6 | 207 | { |
6a08e1e6 TL |
208 | while (quirks->compatible) { |
209 | if (of_machine_is_compatible(quirks->compatible)) { | |
210 | if (quirks->fn) | |
211 | quirks->fn(); | |
212 | break; | |
213 | } | |
214 | quirks++; | |
215 | } | |
216 | } | |
036582f7 TL |
217 | |
218 | void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table) | |
219 | { | |
220 | omap_sdrc_init(NULL, NULL); | |
221 | pdata_quirks_check(auxdata_quirks); | |
222 | of_platform_populate(NULL, omap_dt_match_table, | |
223 | omap_auxdata_lookup, NULL); | |
224 | pdata_quirks_check(pdata_quirks); | |
225 | } |