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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Legacy platform_data quirks
4 *
5 * Copyright (C) 2013 Texas Instruments
6 */
7#include <linux/clk.h>
8#include <linux/davinci_emac.h>
9#include <linux/gpio.h>
10#include <linux/init.h>
11#include <linux/kernel.h>
12#include <linux/of_platform.h>
13#include <linux/mmc/card.h>
14#include <linux/mmc/host.h>
15#include <linux/power/smartreflex.h>
16#include <linux/regulator/machine.h>
17#include <linux/regulator/fixed.h>
18
19#include <linux/platform_data/pinctrl-single.h>
20#include <linux/platform_data/hsmmc-omap.h>
21#include <linux/platform_data/iommu-omap.h>
22#include <linux/platform_data/ti-sysc.h>
23#include <linux/platform_data/wkup_m3.h>
24#include <linux/platform_data/asoc-ti-mcbsp.h>
25#include <linux/platform_data/ti-prm.h>
26
27#include "clockdomain.h"
28#include "common.h"
29#include "common-board-devices.h"
30#include "control.h"
31#include "omap_device.h"
32#include "omap-secure.h"
33#include "soc.h"
34
35static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2];
36
37struct pdata_init {
38 const char *compatible;
39 void (*fn)(void);
40};
41
42static struct of_dev_auxdata omap_auxdata_lookup[];
43static struct twl4030_gpio_platform_data twl_gpio_auxdata;
44
45#ifdef CONFIG_MACH_NOKIA_N8X0
46static void __init omap2420_n8x0_legacy_init(void)
47{
48 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
49}
50#else
51#define omap2420_n8x0_legacy_init NULL
52#endif
53
54#ifdef CONFIG_ARCH_OMAP3
55/*
56 * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V
57 * mode for MMC1 in case bootloader did not configure things.
58 * Note that if the pins are used for MMC1, pbias-regulator
59 * manages the IO voltage.
60 */
61static void __init omap3_gpio126_127_129(void)
62{
63 u32 reg;
64
65 reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE);
66 reg &= ~OMAP343X_PBIASLITEVMODE1;
67 reg |= OMAP343X_PBIASLITEPWRDNZ1;
68 omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE);
69 if (cpu_is_omap3630()) {
70 reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL);
71 reg |= OMAP36XX_GPIO_IO_PWRDNZ;
72 omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL);
73 }
74}
75
76static void __init hsmmc2_internal_input_clk(void)
77{
78 u32 reg;
79
80 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
81 reg |= OMAP2_MMCSDIO2ADPCLKISEL;
82 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
83}
84
85#ifdef CONFIG_OMAP_HWMOD
86static struct iommu_platform_data omap3_iommu_pdata = {
87 .reset_name = "mmu",
88 .assert_reset = omap_device_assert_hardreset,
89 .deassert_reset = omap_device_deassert_hardreset,
90 .device_enable = omap_device_enable,
91 .device_idle = omap_device_idle,
92};
93
94static struct iommu_platform_data omap3_iommu_isp_pdata = {
95 .device_enable = omap_device_enable,
96 .device_idle = omap_device_idle,
97};
98#endif
99
100static int omap3_sbc_t3730_twl_callback(struct device *dev,
101 unsigned gpio,
102 unsigned ngpio)
103{
104 int res;
105
106 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
107 "wlan pwr");
108 if (res)
109 return res;
110
111 gpio_export(gpio, 0);
112
113 return 0;
114}
115
116static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
117{
118 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
119
120 if (err) {
121 pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
122 hub_name, err);
123 return;
124 }
125
126 gpio_export(gpio, 0);
127
128 udelay(10);
129 gpio_set_value(gpio, 1);
130 msleep(1);
131}
132
133static void __init omap3_sbc_t3730_twl_init(void)
134{
135 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
136}
137
138static void __init omap3_sbc_t3730_legacy_init(void)
139{
140 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
141}
142
143static void __init omap3_sbc_t3530_legacy_init(void)
144{
145 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
146}
147
148static void __init omap3_evm_legacy_init(void)
149{
150 hsmmc2_internal_input_clk();
151}
152
153static void am35xx_enable_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 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
160 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
161 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
162}
163
164static void am35xx_disable_emac_int(void)
165{
166 u32 v;
167
168 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
169 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
170 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
171 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
172}
173
174static struct emac_platform_data am35xx_emac_pdata = {
175 .interrupt_enable = am35xx_enable_emac_int,
176 .interrupt_disable = am35xx_disable_emac_int,
177};
178
179static void __init am35xx_emac_reset(void)
180{
181 u32 v;
182
183 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
184 v &= ~AM35XX_CPGMACSS_SW_RST;
185 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
186 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
187}
188
189static struct gpio cm_t3517_wlan_gpios[] __initdata = {
190 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
191 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
192};
193
194static void __init omap3_sbc_t3517_wifi_init(void)
195{
196 int err = gpio_request_array(cm_t3517_wlan_gpios,
197 ARRAY_SIZE(cm_t3517_wlan_gpios));
198 if (err) {
199 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
200 return;
201 }
202
203 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
204 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
205
206 msleep(100);
207 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
208}
209
210static void __init omap3_sbc_t3517_legacy_init(void)
211{
212 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
213 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
214 am35xx_emac_reset();
215 hsmmc2_internal_input_clk();
216 omap3_sbc_t3517_wifi_init();
217}
218
219static void __init am3517_evm_legacy_init(void)
220{
221 am35xx_emac_reset();
222}
223
224static void __init nokia_n900_legacy_init(void)
225{
226 hsmmc2_internal_input_clk();
227 mmc_pdata[0].name = "external";
228 mmc_pdata[1].name = "internal";
229
230 if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
231 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
232 pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
233 /* set IBE to 1 */
234 rx51_secure_update_aux_cr(BIT(6), 0);
235 } else {
236 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
237 pr_warn("Thumb binaries may crash randomly without this workaround\n");
238 }
239 }
240}
241
242static void __init omap3_tao3530_legacy_init(void)
243{
244 hsmmc2_internal_input_clk();
245}
246
247static void __init omap3_logicpd_torpedo_init(void)
248{
249 omap3_gpio126_127_129();
250}
251
252/* omap3pandora legacy devices */
253
254static struct platform_device pandora_backlight = {
255 .name = "pandora-backlight",
256 .id = -1,
257};
258
259static void __init omap3_pandora_legacy_init(void)
260{
261 platform_device_register(&pandora_backlight);
262}
263#endif /* CONFIG_ARCH_OMAP3 */
264
265#ifdef CONFIG_SOC_DRA7XX
266static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = {
267 .set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint,
268};
269#endif
270
271static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk)
272{
273 struct clk_hw *hw = __clk_get_hw(clk);
274 struct clockdomain *clkdm = NULL;
275 struct clk_hw_omap *hwclk;
276
277 hwclk = to_clk_hw_omap(hw);
278 if (!omap2_clk_is_hw_omap(hw))
279 return NULL;
280
281 if (hwclk && hwclk->clkdm_name)
282 clkdm = clkdm_lookup(hwclk->clkdm_name);
283
284 return clkdm;
285}
286
287/**
288 * ti_sysc_clkdm_init - find clockdomain based on clock
289 * @fck: device functional clock
290 * @ick: device interface clock
291 * @dev: struct device
292 *
293 * Populate clockdomain based on clock. It is needed for
294 * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain
295 * clockdomain idle during reset, enable and idle.
296 *
297 * Note that we assume interconnect driver manages the clocks
298 * and do not need to populate oh->_clk for dynamically
299 * allocated modules.
300 */
301static int ti_sysc_clkdm_init(struct device *dev,
302 struct clk *fck, struct clk *ick,
303 struct ti_sysc_cookie *cookie)
304{
305 if (!IS_ERR(fck))
306 cookie->clkdm = ti_sysc_find_one_clockdomain(fck);
307 if (cookie->clkdm)
308 return 0;
309 if (!IS_ERR(ick))
310 cookie->clkdm = ti_sysc_find_one_clockdomain(ick);
311 if (cookie->clkdm)
312 return 0;
313
314 return -ENODEV;
315}
316
317static void ti_sysc_clkdm_deny_idle(struct device *dev,
318 const struct ti_sysc_cookie *cookie)
319{
320 if (cookie->clkdm)
321 clkdm_deny_idle(cookie->clkdm);
322}
323
324static void ti_sysc_clkdm_allow_idle(struct device *dev,
325 const struct ti_sysc_cookie *cookie)
326{
327 if (cookie->clkdm)
328 clkdm_allow_idle(cookie->clkdm);
329}
330
331#ifdef CONFIG_OMAP_HWMOD
332static int ti_sysc_enable_module(struct device *dev,
333 const struct ti_sysc_cookie *cookie)
334{
335 if (!cookie->data)
336 return -EINVAL;
337
338 return omap_hwmod_enable(cookie->data);
339}
340
341static int ti_sysc_idle_module(struct device *dev,
342 const struct ti_sysc_cookie *cookie)
343{
344 if (!cookie->data)
345 return -EINVAL;
346
347 return omap_hwmod_idle(cookie->data);
348}
349
350static int ti_sysc_shutdown_module(struct device *dev,
351 const struct ti_sysc_cookie *cookie)
352{
353 if (!cookie->data)
354 return -EINVAL;
355
356 return omap_hwmod_shutdown(cookie->data);
357}
358#endif /* CONFIG_OMAP_HWMOD */
359
360static bool ti_sysc_soc_type_gp(void)
361{
362 return omap_type() == OMAP2_DEVICE_TYPE_GP;
363}
364
365static struct of_dev_auxdata omap_auxdata_lookup[];
366
367static struct ti_sysc_platform_data ti_sysc_pdata = {
368 .auxdata = omap_auxdata_lookup,
369 .soc_type_gp = ti_sysc_soc_type_gp,
370 .init_clockdomain = ti_sysc_clkdm_init,
371 .clkdm_deny_idle = ti_sysc_clkdm_deny_idle,
372 .clkdm_allow_idle = ti_sysc_clkdm_allow_idle,
373#ifdef CONFIG_OMAP_HWMOD
374 .init_module = omap_hwmod_init_module,
375 .enable_module = ti_sysc_enable_module,
376 .idle_module = ti_sysc_idle_module,
377 .shutdown_module = ti_sysc_shutdown_module,
378#endif
379};
380
381static struct pcs_pdata pcs_pdata;
382
383void omap_pcs_legacy_init(int irq, void (*rearm)(void))
384{
385 pcs_pdata.irq = irq;
386 pcs_pdata.rearm = rearm;
387}
388
389static struct ti_prm_platform_data ti_prm_pdata = {
390 .clkdm_deny_idle = clkdm_deny_idle,
391 .clkdm_allow_idle = clkdm_allow_idle,
392 .clkdm_lookup = clkdm_lookup,
393};
394
395/*
396 * GPIOs for TWL are initialized by the I2C bus and need custom
397 * handing until DSS has device tree bindings.
398 */
399void omap_auxdata_legacy_init(struct device *dev)
400{
401 if (dev->platform_data)
402 return;
403
404 if (strcmp("twl4030-gpio", dev_name(dev)))
405 return;
406
407 dev->platform_data = &twl_gpio_auxdata;
408}
409
410#if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
411static struct omap_mcbsp_platform_data mcbsp_pdata;
412static void __init omap3_mcbsp_init(void)
413{
414 omap3_mcbsp_init_pdata_callback(&mcbsp_pdata);
415}
416#else
417static void __init omap3_mcbsp_init(void) {}
418#endif
419
420/*
421 * Few boards still need auxdata populated before we populate
422 * the dev entries in of_platform_populate().
423 */
424static struct pdata_init auxdata_quirks[] __initdata = {
425#ifdef CONFIG_SOC_OMAP2420
426 { "nokia,n800", omap2420_n8x0_legacy_init, },
427 { "nokia,n810", omap2420_n8x0_legacy_init, },
428 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
429#endif
430#ifdef CONFIG_ARCH_OMAP3
431 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
432#endif
433 { /* sentinel */ },
434};
435
436struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR];
437
438static struct of_dev_auxdata omap_auxdata_lookup[] = {
439#ifdef CONFIG_MACH_NOKIA_N8X0
440 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
441 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
442#endif
443#ifdef CONFIG_ARCH_OMAP3
444 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
445 &omap3_iommu_pdata),
446 OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu",
447 &omap3_iommu_isp_pdata),
448 OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000,
449 "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
450 OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000,
451 "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]),
452 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]),
453 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]),
454 /* Only on am3517 */
455 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
456 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
457 &am35xx_emac_pdata),
458 OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call),
459 /* McBSP modules with sidetone core */
460#if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
461 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata),
462 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata),
463#endif
464#endif
465#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
466 OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000,
467 "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]),
468 OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000,
469 "4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
470 OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000,
471 "4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]),
472#endif
473#ifdef CONFIG_SOC_DRA7XX
474 OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x40d01000, "40d01000.mmu",
475 &dra7_ipu1_dsp_iommu_pdata),
476 OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x41501000, "41501000.mmu",
477 &dra7_ipu1_dsp_iommu_pdata),
478 OF_DEV_AUXDATA("ti,dra7-iommu", 0x58882000, "58882000.mmu",
479 &dra7_ipu1_dsp_iommu_pdata),
480#endif
481 /* Common auxdata */
482 OF_DEV_AUXDATA("simple-pm-bus", 0, NULL, omap_auxdata_lookup),
483 OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata),
484 OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
485 OF_DEV_AUXDATA("ti,omap-prm-inst", 0, NULL, &ti_prm_pdata),
486 OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info),
487 { /* sentinel */ },
488};
489
490/*
491 * Few boards still need to initialize some legacy devices with
492 * platform data until the drivers support device tree.
493 */
494static struct pdata_init pdata_quirks[] __initdata = {
495#ifdef CONFIG_ARCH_OMAP3
496 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
497 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
498 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
499 { "nokia,omap3-n900", nokia_n900_legacy_init, },
500 { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
501 { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
502 { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, },
503 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
504 { "ti,am3517-evm", am3517_evm_legacy_init, },
505 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
506 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
507 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
508#endif
509 { /* sentinel */ },
510};
511
512static void pdata_quirks_check(struct pdata_init *quirks)
513{
514 while (quirks->compatible) {
515 if (of_machine_is_compatible(quirks->compatible)) {
516 if (quirks->fn)
517 quirks->fn();
518 }
519 quirks++;
520 }
521}
522
523static const char * const pdata_quirks_init_nodes[] = {
524 "prcm",
525 "prm",
526};
527
528static void __init
529pdata_quirks_init_clocks(const struct of_device_id *omap_dt_match_table)
530{
531 struct device_node *np;
532 int i;
533
534 for (i = 0; i < ARRAY_SIZE(pdata_quirks_init_nodes); i++) {
535 np = of_find_node_by_name(NULL, pdata_quirks_init_nodes[i]);
536 if (!np)
537 continue;
538
539 of_platform_populate(np, omap_dt_match_table,
540 omap_auxdata_lookup, NULL);
541
542 of_node_put(np);
543 }
544}
545
546void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
547{
548 /*
549 * We still need this for omap2420 and omap3 PM to work, others are
550 * using drivers/misc/sram.c already.
551 */
552 if (of_machine_is_compatible("ti,omap2420") ||
553 of_machine_is_compatible("ti,omap3"))
554 omap_sdrc_init(NULL, NULL);
555
556 if (of_machine_is_compatible("ti,omap3"))
557 omap3_mcbsp_init();
558 pdata_quirks_check(auxdata_quirks);
559
560 pdata_quirks_init_clocks(omap_dt_match_table);
561
562 of_platform_populate(NULL, omap_dt_match_table,
563 omap_auxdata_lookup, NULL);
564 pdata_quirks_check(pdata_quirks);
565}