Linux 4.2-rc2
[linux-2.6-block.git] / arch / arm / mach-omap2 / pdata-quirks.c
CommitLineData
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>
d565b5f4 16#include <linux/ti_wilink_st.h>
6a08e1e6 17
30a69ef7 18#include <linux/platform_data/pinctrl-single.h>
910f1678 19#include <linux/platform_data/iommu-omap.h>
30a69ef7 20
6a08e1e6
TL
21#include "common.h"
22#include "common-board-devices.h"
23#include "dss-common.h"
faf4bd47 24#include "control.h"
910f1678 25#include "omap_device.h"
deff82e6
SR
26#include "omap-secure.h"
27#include "soc.h"
6a08e1e6
TL
28
29struct pdata_init {
30 const char *compatible;
31 void (*fn)(void);
32};
33
fa590c92 34struct of_dev_auxdata omap_auxdata_lookup[];
dad12d11 35static struct twl4030_gpio_platform_data twl_gpio_auxdata;
fa590c92 36
fa590c92
TL
37#ifdef CONFIG_MACH_NOKIA_N8X0
38static void __init omap2420_n8x0_legacy_init(void)
39{
40 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
41}
42#else
43#define omap2420_n8x0_legacy_init NULL
44#endif
45
faf4bd47 46#ifdef CONFIG_ARCH_OMAP3
b96b332f
TL
47/*
48 * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
49 * mode for MMC1 in case bootloader did not configure things.
50 * Note that if the pins are used for MMC1, pbias-regulator
51 * manages the IO voltage.
52 */
53static void __init omap3_gpio126_127_129(void)
54{
55 u32 reg;
56
57 reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
58 reg &= ~OMAP343X_PBIASLITEVMODE1;
59 reg |= OMAP343X_PBIASLITEPWRDNZ1;
60 omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
61 if (cpu_is_omap3630()) {
62 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
63 reg |= OMAP36XX_GPIO_IO_PWRDNZ;
64 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
65 }
66}
67
faf4bd47
AK
68static void __init hsmmc2_internal_input_clk(void)
69{
70 u32 reg;
71
72 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
73 reg |= OMAP2_MMCSDIO2ADPCLKISEL;
74 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
75}
15c9887e 76
910f1678
SA
77static struct iommu_platform_data omap3_iommu_pdata = {
78 .reset_name = "mmu",
79 .assert_reset = omap_device_assert_hardreset,
80 .deassert_reset = omap_device_deassert_hardreset,
81};
82
0f0cfc69
TL
83static int omap3_sbc_t3730_twl_callback(struct device *dev,
84 unsigned gpio,
85 unsigned ngpio)
86{
87 int res;
88
89 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
d234e423 90 "wlan pwr");
0f0cfc69
TL
91 if (res)
92 return res;
93
94 gpio_export(gpio, 0);
95
96 return 0;
97}
98
b62d91e5
DL
99static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
100{
101 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
102
103 if (err) {
104 pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
105 hub_name, err);
106 return;
107 }
108
109 gpio_export(gpio, 0);
110
111 udelay(10);
112 gpio_set_value(gpio, 1);
113 msleep(1);
114}
115
0f0cfc69
TL
116static void __init omap3_sbc_t3730_twl_init(void)
117{
118 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
119}
120
121static void __init omap3_sbc_t3730_legacy_init(void)
122{
b62d91e5 123 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
0f0cfc69
TL
124}
125
40ecc02e
DL
126static void __init omap3_sbc_t3530_legacy_init(void)
127{
b62d91e5 128 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
40ecc02e
DL
129}
130
d565b5f4
EBS
131struct ti_st_plat_data wilink_pdata = {
132 .nshutdown_gpio = 137,
133 .dev_name = "/dev/ttyO1",
134 .flow_cntrl = 1,
135 .baud_rate = 300000,
136};
137
138static struct platform_device wl18xx_device = {
139 .name = "kim",
140 .id = -1,
141 .dev = {
142 .platform_data = &wilink_pdata,
143 }
144};
145
146static struct platform_device btwilink_device = {
147 .name = "btwilink",
148 .id = -1,
149};
150
151static void __init omap3_igep0020_rev_f_legacy_init(void)
152{
d565b5f4
EBS
153 platform_device_register(&wl18xx_device);
154 platform_device_register(&btwilink_device);
155}
156
157static void __init omap3_igep0030_rev_g_legacy_init(void)
15c9887e 158{
d565b5f4
EBS
159 platform_device_register(&wl18xx_device);
160 platform_device_register(&btwilink_device);
15c9887e 161}
79b39f79
TL
162
163static void __init omap3_evm_legacy_init(void)
164{
5b7610f2 165 hsmmc2_internal_input_clk();
79b39f79 166}
71900314
TL
167
168static void am35xx_enable_emac_int(void)
169{
170 u32 v;
171
172 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
173 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
174 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
175 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
176 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
177}
178
179static void am35xx_disable_emac_int(void)
180{
181 u32 v;
182
183 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
184 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
185 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
186 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
187}
188
189static struct emac_platform_data am35xx_emac_pdata = {
190 .interrupt_enable = am35xx_enable_emac_int,
191 .interrupt_disable = am35xx_disable_emac_int,
192};
193
fb45105a 194static void __init am35xx_emac_reset(void)
71900314
TL
195{
196 u32 v;
197
198 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
199 v &= ~AM35XX_CPGMACSS_SW_RST;
200 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
201 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
202}
deff82e6 203
fb45105a
DL
204static struct gpio cm_t3517_wlan_gpios[] __initdata = {
205 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
206 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
207};
208
209static void __init omap3_sbc_t3517_wifi_init(void)
210{
211 int err = gpio_request_array(cm_t3517_wlan_gpios,
212 ARRAY_SIZE(cm_t3517_wlan_gpios));
213 if (err) {
214 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
215 return;
216 }
217
218 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
219 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
220
221 msleep(100);
222 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
223}
224
225static void __init omap3_sbc_t3517_legacy_init(void)
226{
b62d91e5
DL
227 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
228 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
fb45105a
DL
229 am35xx_emac_reset();
230 hsmmc2_internal_input_clk();
231 omap3_sbc_t3517_wifi_init();
fb45105a
DL
232}
233
234static void __init am3517_evm_legacy_init(void)
235{
236 am35xx_emac_reset();
237}
f83ccb93 238
14c0a5b4
SR
239static struct platform_device omap3_rom_rng_device = {
240 .name = "omap3-rom-rng",
241 .id = -1,
242 .dev = {
243 .platform_data = rx51_secure_rng_call,
244 },
245};
246
deff82e6
SR
247static void __init nokia_n900_legacy_init(void)
248{
249 hsmmc2_internal_input_clk();
250
251 if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
252 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
253 pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
254 /* set IBE to 1 */
255 rx51_secure_update_aux_cr(BIT(6), 0);
256 } else {
3d0cb73e
JP
257 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
258 pr_warn("Thumb binaries may crash randomly without this workaround\n");
deff82e6 259 }
14c0a5b4
SR
260
261 pr_info("RX-51: Registring OMAP3 HWRNG device\n");
262 platform_device_register(&omap3_rom_rng_device);
263
deff82e6
SR
264 }
265}
63dd5bc0
SR
266
267static void __init omap3_tao3530_legacy_init(void)
268{
269 hsmmc2_internal_input_clk();
deff82e6 270}
faf4bd47
AK
271#endif /* CONFIG_ARCH_OMAP3 */
272
67eb1e6e 273#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
910f1678
SA
274static struct iommu_platform_data omap4_iommu_pdata = {
275 .reset_name = "mmu_cache",
276 .assert_reset = omap_device_assert_hardreset,
277 .deassert_reset = omap_device_deassert_hardreset,
278};
3e7a3185
TL
279#endif
280
281#ifdef CONFIG_SOC_OMAP5
282static void __init omap5_uevm_legacy_init(void)
283{
3e7a3185
TL
284}
285#endif
286
30a69ef7
TL
287static struct pcs_pdata pcs_pdata;
288
289void omap_pcs_legacy_init(int irq, void (*rearm)(void))
290{
291 pcs_pdata.irq = irq;
292 pcs_pdata.rearm = rearm;
293}
294
dad12d11
TL
295/*
296 * GPIOs for TWL are initialized by the I2C bus and need custom
297 * handing until DSS has device tree bindings.
298 */
299void omap_auxdata_legacy_init(struct device *dev)
300{
301 if (dev->platform_data)
302 return;
303
304 if (strcmp("twl4030-gpio", dev_name(dev)))
305 return;
306
307 dev->platform_data = &twl_gpio_auxdata;
308}
309
036582f7
TL
310/*
311 * Few boards still need auxdata populated before we populate
312 * the dev entries in of_platform_populate().
313 */
314static struct pdata_init auxdata_quirks[] __initdata = {
fa590c92
TL
315#ifdef CONFIG_SOC_OMAP2420
316 { "nokia,n800", omap2420_n8x0_legacy_init, },
317 { "nokia,n810", omap2420_n8x0_legacy_init, },
318 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
0f0cfc69
TL
319#endif
320#ifdef CONFIG_ARCH_OMAP3
321 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
fa590c92 322#endif
036582f7
TL
323 { /* sentinel */ },
324};
325
8651bd8c 326struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
036582f7
TL
327#ifdef CONFIG_MACH_NOKIA_N8X0
328 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
e92ce89c
FB
329 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
330 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
036582f7 331#endif
30a69ef7
TL
332#ifdef CONFIG_ARCH_OMAP3
333 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
4b416368 334 OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
30a69ef7 335 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
910f1678
SA
336 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
337 &omap3_iommu_pdata),
71900314
TL
338 /* Only on am3517 */
339 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
340 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
341 &am35xx_emac_pdata),
30a69ef7
TL
342#endif
343#ifdef CONFIG_ARCH_OMAP4
344 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
345 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
67eb1e6e 346#endif
874fef7d
NM
347#ifdef CONFIG_SOC_OMAP5
348 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
349 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
350#endif
b0a3d0da
NM
351#ifdef CONFIG_SOC_DRA7XX
352 OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
353#endif
dbbe9770
K
354#ifdef CONFIG_SOC_AM43XX
355 OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
356#endif
67eb1e6e 357#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
910f1678
SA
358 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
359 &omap4_iommu_pdata),
360 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
361 &omap4_iommu_pdata),
30a69ef7 362#endif
8651bd8c
TL
363 { /* sentinel */ },
364};
365
036582f7
TL
366/*
367 * Few boards still need to initialize some legacy devices with
368 * platform data until the drivers support device tree.
369 */
6a08e1e6 370static struct pdata_init pdata_quirks[] __initdata = {
faf4bd47 371#ifdef CONFIG_ARCH_OMAP3
fb45105a 372 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
40ecc02e 373 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
0f0cfc69 374 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
deff82e6 375 { "nokia,omap3-n900", nokia_n900_legacy_init, },
faf4bd47
AK
376 { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
377 { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
d565b5f4
EBS
378 { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
379 { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
b96b332f 380 { "logicpd,dm3730-torpedo-devkit", omap3_gpio126_127_129, },
79b39f79 381 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
71900314 382 { "ti,am3517-evm", am3517_evm_legacy_init, },
63dd5bc0 383 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
faf4bd47 384#endif
3e7a3185
TL
385#ifdef CONFIG_SOC_OMAP5
386 { "ti,omap5-uevm", omap5_uevm_legacy_init, },
387#endif
6a08e1e6
TL
388 { /* sentinel */ },
389};
390
036582f7 391static void pdata_quirks_check(struct pdata_init *quirks)
6a08e1e6 392{
6a08e1e6
TL
393 while (quirks->compatible) {
394 if (of_machine_is_compatible(quirks->compatible)) {
395 if (quirks->fn)
396 quirks->fn();
397 break;
398 }
399 quirks++;
400 }
401}
036582f7 402
31957609 403void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
036582f7
TL
404{
405 omap_sdrc_init(NULL, NULL);
406 pdata_quirks_check(auxdata_quirks);
407 of_platform_populate(NULL, omap_dt_match_table,
408 omap_auxdata_lookup, NULL);
409 pdata_quirks_check(pdata_quirks);
410}