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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> | |
71900314 | 11 | #include <linux/davinci_emac.h> |
5f0a2c69 | 12 | #include <linux/gpio.h> |
6a08e1e6 TL |
13 | #include <linux/init.h> |
14 | #include <linux/kernel.h> | |
8651bd8c | 15 | #include <linux/of_platform.h> |
5f0a2c69 | 16 | #include <linux/wl12xx.h> |
6a08e1e6 | 17 | |
30a69ef7 TL |
18 | #include <linux/platform_data/pinctrl-single.h> |
19 | ||
71900314 | 20 | #include "am35xx.h" |
6a08e1e6 TL |
21 | #include "common.h" |
22 | #include "common-board-devices.h" | |
23 | #include "dss-common.h" | |
faf4bd47 | 24 | #include "control.h" |
6a08e1e6 TL |
25 | |
26 | struct pdata_init { | |
27 | const char *compatible; | |
28 | void (*fn)(void); | |
29 | }; | |
30 | ||
fa590c92 | 31 | struct of_dev_auxdata omap_auxdata_lookup[]; |
dad12d11 | 32 | static struct twl4030_gpio_platform_data twl_gpio_auxdata; |
fa590c92 | 33 | |
3e7a3185 TL |
34 | /* |
35 | * Create alias for USB host PHY clock. | |
36 | * Remove this when clock phandle can be provided via DT | |
37 | */ | |
38 | static void __init __used legacy_init_ehci_clk(char *clkname) | |
39 | { | |
40 | int ret; | |
41 | ||
42 | ret = clk_add_alias("main_clk", NULL, clkname, NULL); | |
43 | if (ret) | |
44 | pr_err("%s:Failed to add main_clk alias to %s :%d\n", | |
45 | __func__, clkname, ret); | |
46 | } | |
47 | ||
5f0a2c69 TL |
48 | #if IS_ENABLED(CONFIG_WL12XX) |
49 | ||
50 | static struct wl12xx_platform_data wl12xx __initdata; | |
51 | ||
52 | static void __init __used legacy_init_wl12xx(unsigned ref_clock, | |
53 | unsigned tcxo_clock, | |
54 | int gpio) | |
55 | { | |
56 | int res; | |
57 | ||
58 | wl12xx.board_ref_clock = ref_clock; | |
59 | wl12xx.board_tcxo_clock = tcxo_clock; | |
60 | wl12xx.irq = gpio_to_irq(gpio); | |
61 | ||
62 | res = wl12xx_set_platform_data(&wl12xx); | |
63 | if (res) { | |
64 | pr_err("error setting wl12xx data: %d\n", res); | |
65 | return; | |
66 | } | |
67 | } | |
68 | #else | |
69 | static inline void legacy_init_wl12xx(unsigned ref_clock, | |
70 | unsigned tcxo_clock, | |
71 | int gpio) | |
72 | { | |
73 | } | |
74 | #endif | |
75 | ||
fa590c92 TL |
76 | #ifdef CONFIG_MACH_NOKIA_N8X0 |
77 | static void __init omap2420_n8x0_legacy_init(void) | |
78 | { | |
79 | omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); | |
80 | } | |
81 | #else | |
82 | #define omap2420_n8x0_legacy_init NULL | |
83 | #endif | |
84 | ||
faf4bd47 AK |
85 | #ifdef CONFIG_ARCH_OMAP3 |
86 | static void __init hsmmc2_internal_input_clk(void) | |
87 | { | |
88 | u32 reg; | |
89 | ||
90 | reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); | |
91 | reg |= OMAP2_MMCSDIO2ADPCLKISEL; | |
92 | omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); | |
93 | } | |
15c9887e | 94 | |
0f0cfc69 TL |
95 | static int omap3_sbc_t3730_twl_callback(struct device *dev, |
96 | unsigned gpio, | |
97 | unsigned ngpio) | |
98 | { | |
99 | int res; | |
100 | ||
101 | res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, | |
d234e423 | 102 | "wlan pwr"); |
0f0cfc69 TL |
103 | if (res) |
104 | return res; | |
105 | ||
106 | gpio_export(gpio, 0); | |
107 | ||
108 | return 0; | |
109 | } | |
110 | ||
111 | static void __init omap3_sbc_t3730_twl_init(void) | |
112 | { | |
113 | twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback; | |
114 | } | |
115 | ||
116 | static void __init omap3_sbc_t3730_legacy_init(void) | |
117 | { | |
118 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 136); | |
119 | omap_ads7846_init(1, 57, 0, NULL); | |
120 | } | |
121 | ||
40ecc02e DL |
122 | static void __init omap3_sbc_t3530_legacy_init(void) |
123 | { | |
124 | omap_ads7846_init(1, 57, 0, NULL); | |
125 | } | |
126 | ||
15c9887e JMC |
127 | static void __init omap3_igep0020_legacy_init(void) |
128 | { | |
129 | omap3_igep2_display_init_of(); | |
130 | } | |
79b39f79 TL |
131 | |
132 | static void __init omap3_evm_legacy_init(void) | |
133 | { | |
134 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149); | |
135 | } | |
136 | ||
137 | static void __init omap3_zoom_legacy_init(void) | |
138 | { | |
139 | legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162); | |
140 | } | |
71900314 TL |
141 | |
142 | static void am35xx_enable_emac_int(void) | |
143 | { | |
144 | u32 v; | |
145 | ||
146 | v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); | |
147 | v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | | |
148 | AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); | |
149 | omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); | |
150 | omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ | |
151 | } | |
152 | ||
153 | static void am35xx_disable_emac_int(void) | |
154 | { | |
155 | u32 v; | |
156 | ||
157 | v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); | |
158 | v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); | |
159 | omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); | |
160 | omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ | |
161 | } | |
162 | ||
163 | static struct emac_platform_data am35xx_emac_pdata = { | |
164 | .interrupt_enable = am35xx_enable_emac_int, | |
165 | .interrupt_disable = am35xx_disable_emac_int, | |
166 | }; | |
167 | ||
168 | static void __init am3517_evm_legacy_init(void) | |
169 | { | |
170 | u32 v; | |
171 | ||
172 | v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); | |
173 | v &= ~AM35XX_CPGMACSS_SW_RST; | |
174 | omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); | |
175 | omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ | |
176 | } | |
faf4bd47 AK |
177 | #endif /* CONFIG_ARCH_OMAP3 */ |
178 | ||
3e7a3185 TL |
179 | #ifdef CONFIG_ARCH_OMAP4 |
180 | static void __init omap4_sdp_legacy_init(void) | |
181 | { | |
182 | omap_4430sdp_display_init_of(); | |
5f0a2c69 TL |
183 | legacy_init_wl12xx(WL12XX_REFCLOCK_26, |
184 | WL12XX_TCXOCLOCK_26, 53); | |
3e7a3185 TL |
185 | } |
186 | ||
187 | static void __init omap4_panda_legacy_init(void) | |
188 | { | |
189 | omap4_panda_display_init_of(); | |
190 | legacy_init_ehci_clk("auxclk3_ck"); | |
5f0a2c69 | 191 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53); |
3e7a3185 TL |
192 | } |
193 | #endif | |
194 | ||
195 | #ifdef CONFIG_SOC_OMAP5 | |
196 | static void __init omap5_uevm_legacy_init(void) | |
197 | { | |
198 | legacy_init_ehci_clk("auxclk1_ck"); | |
199 | } | |
200 | #endif | |
201 | ||
30a69ef7 TL |
202 | static struct pcs_pdata pcs_pdata; |
203 | ||
204 | void omap_pcs_legacy_init(int irq, void (*rearm)(void)) | |
205 | { | |
206 | pcs_pdata.irq = irq; | |
207 | pcs_pdata.rearm = rearm; | |
208 | } | |
209 | ||
dad12d11 TL |
210 | /* |
211 | * GPIOs for TWL are initialized by the I2C bus and need custom | |
212 | * handing until DSS has device tree bindings. | |
213 | */ | |
214 | void omap_auxdata_legacy_init(struct device *dev) | |
215 | { | |
216 | if (dev->platform_data) | |
217 | return; | |
218 | ||
219 | if (strcmp("twl4030-gpio", dev_name(dev))) | |
220 | return; | |
221 | ||
222 | dev->platform_data = &twl_gpio_auxdata; | |
223 | } | |
224 | ||
036582f7 TL |
225 | /* |
226 | * Few boards still need auxdata populated before we populate | |
227 | * the dev entries in of_platform_populate(). | |
228 | */ | |
229 | static struct pdata_init auxdata_quirks[] __initdata = { | |
fa590c92 TL |
230 | #ifdef CONFIG_SOC_OMAP2420 |
231 | { "nokia,n800", omap2420_n8x0_legacy_init, }, | |
232 | { "nokia,n810", omap2420_n8x0_legacy_init, }, | |
233 | { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, | |
0f0cfc69 TL |
234 | #endif |
235 | #ifdef CONFIG_ARCH_OMAP3 | |
236 | { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, | |
fa590c92 | 237 | #endif |
036582f7 TL |
238 | { /* sentinel */ }, |
239 | }; | |
240 | ||
8651bd8c | 241 | struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { |
036582f7 TL |
242 | #ifdef CONFIG_MACH_NOKIA_N8X0 |
243 | OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), | |
244 | #endif | |
30a69ef7 TL |
245 | #ifdef CONFIG_ARCH_OMAP3 |
246 | OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata), | |
247 | OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata), | |
71900314 TL |
248 | /* Only on am3517 */ |
249 | OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), | |
250 | OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", | |
251 | &am35xx_emac_pdata), | |
30a69ef7 TL |
252 | #endif |
253 | #ifdef CONFIG_ARCH_OMAP4 | |
254 | OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata), | |
255 | OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata), | |
256 | #endif | |
8651bd8c TL |
257 | { /* sentinel */ }, |
258 | }; | |
259 | ||
036582f7 TL |
260 | /* |
261 | * Few boards still need to initialize some legacy devices with | |
262 | * platform data until the drivers support device tree. | |
263 | */ | |
6a08e1e6 | 264 | static struct pdata_init pdata_quirks[] __initdata = { |
faf4bd47 | 265 | #ifdef CONFIG_ARCH_OMAP3 |
40ecc02e | 266 | { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, |
0f0cfc69 | 267 | { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, |
edd5eb4e | 268 | { "nokia,omap3-n900", hsmmc2_internal_input_clk, }, |
faf4bd47 AK |
269 | { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, |
270 | { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, | |
15c9887e | 271 | { "isee,omap3-igep0020", omap3_igep0020_legacy_init, }, |
79b39f79 TL |
272 | { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, |
273 | { "ti,omap3-zoom3", omap3_zoom_legacy_init, }, | |
71900314 | 274 | { "ti,am3517-evm", am3517_evm_legacy_init, }, |
faf4bd47 | 275 | #endif |
3e7a3185 TL |
276 | #ifdef CONFIG_ARCH_OMAP4 |
277 | { "ti,omap4-sdp", omap4_sdp_legacy_init, }, | |
278 | { "ti,omap4-panda", omap4_panda_legacy_init, }, | |
279 | #endif | |
280 | #ifdef CONFIG_SOC_OMAP5 | |
281 | { "ti,omap5-uevm", omap5_uevm_legacy_init, }, | |
282 | #endif | |
6a08e1e6 TL |
283 | { /* sentinel */ }, |
284 | }; | |
285 | ||
036582f7 | 286 | static void pdata_quirks_check(struct pdata_init *quirks) |
6a08e1e6 | 287 | { |
6a08e1e6 TL |
288 | while (quirks->compatible) { |
289 | if (of_machine_is_compatible(quirks->compatible)) { | |
290 | if (quirks->fn) | |
291 | quirks->fn(); | |
292 | break; | |
293 | } | |
294 | quirks++; | |
295 | } | |
296 | } | |
036582f7 TL |
297 | |
298 | void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table) | |
299 | { | |
300 | omap_sdrc_init(NULL, NULL); | |
301 | pdata_quirks_check(auxdata_quirks); | |
302 | of_platform_populate(NULL, omap_dt_match_table, | |
303 | omap_auxdata_lookup, NULL); | |
304 | pdata_quirks_check(pdata_quirks); | |
305 | } |