treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / arch / arm / mach-omap2 / pdata-quirks.c
blobe95c224ffc4d876d38f7b2ab5d07c2a1ed61ec59
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Legacy platform_data quirks
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/wl12xx.h>
14 #include <linux/mmc/card.h>
15 #include <linux/mmc/host.h>
16 #include <linux/power/smartreflex.h>
17 #include <linux/regulator/machine.h>
18 #include <linux/regulator/fixed.h>
20 #include <linux/platform_data/pinctrl-single.h>
21 #include <linux/platform_data/hsmmc-omap.h>
22 #include <linux/platform_data/iommu-omap.h>
23 #include <linux/platform_data/ti-sysc.h>
24 #include <linux/platform_data/wkup_m3.h>
25 #include <linux/platform_data/asoc-ti-mcbsp.h>
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"
35 static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2];
37 struct pdata_init {
38 const char *compatible;
39 void (*fn)(void);
42 static struct of_dev_auxdata omap_auxdata_lookup[];
43 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
45 #ifdef CONFIG_MACH_NOKIA_N8X0
46 static void __init omap2420_n8x0_legacy_init(void)
48 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
50 #else
51 #define omap2420_n8x0_legacy_init NULL
52 #endif
54 #ifdef CONFIG_ARCH_OMAP3
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.
61 static void __init omap3_gpio126_127_129(void)
63 u32 reg;
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);
76 static void __init hsmmc2_internal_input_clk(void)
78 u32 reg;
80 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
81 reg |= OMAP2_MMCSDIO2ADPCLKISEL;
82 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
85 static struct iommu_platform_data omap3_iommu_pdata = {
86 .reset_name = "mmu",
87 .assert_reset = omap_device_assert_hardreset,
88 .deassert_reset = omap_device_deassert_hardreset,
89 .device_enable = omap_device_enable,
90 .device_idle = omap_device_idle,
93 static struct iommu_platform_data omap3_iommu_isp_pdata = {
94 .device_enable = omap_device_enable,
95 .device_idle = omap_device_idle,
98 static int omap3_sbc_t3730_twl_callback(struct device *dev,
99 unsigned gpio,
100 unsigned ngpio)
102 int res;
104 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
105 "wlan pwr");
106 if (res)
107 return res;
109 gpio_export(gpio, 0);
111 return 0;
114 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
116 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
118 if (err) {
119 pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
120 hub_name, err);
121 return;
124 gpio_export(gpio, 0);
126 udelay(10);
127 gpio_set_value(gpio, 1);
128 msleep(1);
131 static void __init omap3_sbc_t3730_twl_init(void)
133 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
136 static void __init omap3_sbc_t3730_legacy_init(void)
138 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
141 static void __init omap3_sbc_t3530_legacy_init(void)
143 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
146 static void __init omap3_evm_legacy_init(void)
148 hsmmc2_internal_input_clk();
151 static void am35xx_enable_emac_int(void)
153 u32 v;
155 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
156 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
157 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
158 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
159 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
162 static void am35xx_disable_emac_int(void)
164 u32 v;
166 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
167 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
168 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
169 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
172 static struct emac_platform_data am35xx_emac_pdata = {
173 .interrupt_enable = am35xx_enable_emac_int,
174 .interrupt_disable = am35xx_disable_emac_int,
177 static void __init am35xx_emac_reset(void)
179 u32 v;
181 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
182 v &= ~AM35XX_CPGMACSS_SW_RST;
183 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
184 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
187 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
188 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
189 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
192 static void __init omap3_sbc_t3517_wifi_init(void)
194 int err = gpio_request_array(cm_t3517_wlan_gpios,
195 ARRAY_SIZE(cm_t3517_wlan_gpios));
196 if (err) {
197 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
198 return;
201 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
202 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
204 msleep(100);
205 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
208 static void __init omap3_sbc_t3517_legacy_init(void)
210 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
211 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
212 am35xx_emac_reset();
213 hsmmc2_internal_input_clk();
214 omap3_sbc_t3517_wifi_init();
217 static void __init am3517_evm_legacy_init(void)
219 am35xx_emac_reset();
222 static void __init nokia_n900_legacy_init(void)
224 hsmmc2_internal_input_clk();
225 mmc_pdata[0].name = "external";
226 mmc_pdata[1].name = "internal";
228 if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
229 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
230 pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
231 /* set IBE to 1 */
232 rx51_secure_update_aux_cr(BIT(6), 0);
233 } else {
234 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
235 pr_warn("Thumb binaries may crash randomly without this workaround\n");
240 static void __init omap3_tao3530_legacy_init(void)
242 hsmmc2_internal_input_clk();
245 static void __init omap3_logicpd_torpedo_init(void)
247 omap3_gpio126_127_129();
250 /* omap3pandora legacy devices */
252 static struct platform_device pandora_backlight = {
253 .name = "pandora-backlight",
254 .id = -1,
257 static void __init omap3_pandora_legacy_init(void)
259 platform_device_register(&pandora_backlight);
261 #endif /* CONFIG_ARCH_OMAP3 */
263 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
264 static struct iommu_platform_data omap4_iommu_pdata = {
265 .reset_name = "mmu_cache",
266 .assert_reset = omap_device_assert_hardreset,
267 .deassert_reset = omap_device_deassert_hardreset,
268 .device_enable = omap_device_enable,
269 .device_idle = omap_device_idle,
271 #endif
273 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
274 static struct wkup_m3_platform_data wkup_m3_data = {
275 .reset_name = "wkup_m3",
276 .assert_reset = omap_device_assert_hardreset,
277 .deassert_reset = omap_device_deassert_hardreset,
279 #endif
281 #ifdef CONFIG_SOC_OMAP5
282 static void __init omap5_uevm_legacy_init(void)
285 #endif
287 #ifdef CONFIG_SOC_DRA7XX
288 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc1;
289 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc2;
290 static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc3;
292 static void __init dra7x_evm_mmc_quirk(void)
294 if (omap_rev() == DRA752_REV_ES1_1 || omap_rev() == DRA752_REV_ES1_0) {
295 dra7_hsmmc_data_mmc1.version = "rev11";
296 dra7_hsmmc_data_mmc1.max_freq = 96000000;
298 dra7_hsmmc_data_mmc2.version = "rev11";
299 dra7_hsmmc_data_mmc2.max_freq = 48000000;
301 dra7_hsmmc_data_mmc3.version = "rev11";
302 dra7_hsmmc_data_mmc3.max_freq = 48000000;
305 #endif
307 static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk)
309 struct clk_hw *hw = __clk_get_hw(clk);
310 struct clockdomain *clkdm = NULL;
311 struct clk_hw_omap *hwclk;
313 hwclk = to_clk_hw_omap(hw);
314 if (!omap2_clk_is_hw_omap(hw))
315 return NULL;
317 if (hwclk && hwclk->clkdm_name)
318 clkdm = clkdm_lookup(hwclk->clkdm_name);
320 return clkdm;
324 * ti_sysc_clkdm_init - find clockdomain based on clock
325 * @fck: device functional clock
326 * @ick: device interface clock
327 * @dev: struct device
329 * Populate clockdomain based on clock. It is needed for
330 * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain
331 * clockdomain idle during reset, enable and idle.
333 * Note that we assume interconnect driver manages the clocks
334 * and do not need to populate oh->_clk for dynamically
335 * allocated modules.
337 static int ti_sysc_clkdm_init(struct device *dev,
338 struct clk *fck, struct clk *ick,
339 struct ti_sysc_cookie *cookie)
341 if (!IS_ERR(fck))
342 cookie->clkdm = ti_sysc_find_one_clockdomain(fck);
343 if (cookie->clkdm)
344 return 0;
345 if (!IS_ERR(ick))
346 cookie->clkdm = ti_sysc_find_one_clockdomain(ick);
347 if (cookie->clkdm)
348 return 0;
350 return -ENODEV;
353 static void ti_sysc_clkdm_deny_idle(struct device *dev,
354 const struct ti_sysc_cookie *cookie)
356 if (cookie->clkdm)
357 clkdm_deny_idle(cookie->clkdm);
360 static void ti_sysc_clkdm_allow_idle(struct device *dev,
361 const struct ti_sysc_cookie *cookie)
363 if (cookie->clkdm)
364 clkdm_allow_idle(cookie->clkdm);
367 static int ti_sysc_enable_module(struct device *dev,
368 const struct ti_sysc_cookie *cookie)
370 if (!cookie->data)
371 return -EINVAL;
373 return omap_hwmod_enable(cookie->data);
376 static int ti_sysc_idle_module(struct device *dev,
377 const struct ti_sysc_cookie *cookie)
379 if (!cookie->data)
380 return -EINVAL;
382 return omap_hwmod_idle(cookie->data);
385 static int ti_sysc_shutdown_module(struct device *dev,
386 const struct ti_sysc_cookie *cookie)
388 if (!cookie->data)
389 return -EINVAL;
391 return omap_hwmod_shutdown(cookie->data);
394 static struct of_dev_auxdata omap_auxdata_lookup[];
396 static struct ti_sysc_platform_data ti_sysc_pdata = {
397 .auxdata = omap_auxdata_lookup,
398 .init_clockdomain = ti_sysc_clkdm_init,
399 .clkdm_deny_idle = ti_sysc_clkdm_deny_idle,
400 .clkdm_allow_idle = ti_sysc_clkdm_allow_idle,
401 .init_module = omap_hwmod_init_module,
402 .enable_module = ti_sysc_enable_module,
403 .idle_module = ti_sysc_idle_module,
404 .shutdown_module = ti_sysc_shutdown_module,
407 static struct pcs_pdata pcs_pdata;
409 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
411 pcs_pdata.irq = irq;
412 pcs_pdata.rearm = rearm;
416 * GPIOs for TWL are initialized by the I2C bus and need custom
417 * handing until DSS has device tree bindings.
419 void omap_auxdata_legacy_init(struct device *dev)
421 if (dev->platform_data)
422 return;
424 if (strcmp("twl4030-gpio", dev_name(dev)))
425 return;
427 dev->platform_data = &twl_gpio_auxdata;
430 #if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
431 static struct omap_mcbsp_platform_data mcbsp_pdata;
432 static void __init omap3_mcbsp_init(void)
434 omap3_mcbsp_init_pdata_callback(&mcbsp_pdata);
436 #else
437 static void __init omap3_mcbsp_init(void) {}
438 #endif
441 * Few boards still need auxdata populated before we populate
442 * the dev entries in of_platform_populate().
444 static struct pdata_init auxdata_quirks[] __initdata = {
445 #ifdef CONFIG_SOC_OMAP2420
446 { "nokia,n800", omap2420_n8x0_legacy_init, },
447 { "nokia,n810", omap2420_n8x0_legacy_init, },
448 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
449 #endif
450 #ifdef CONFIG_ARCH_OMAP3
451 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
452 #endif
453 { /* sentinel */ },
456 struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR];
458 static struct of_dev_auxdata omap_auxdata_lookup[] = {
459 #ifdef CONFIG_MACH_NOKIA_N8X0
460 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
461 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
462 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
463 #endif
464 #ifdef CONFIG_ARCH_OMAP3
465 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
466 &omap3_iommu_pdata),
467 OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu",
468 &omap3_iommu_isp_pdata),
469 OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000,
470 "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
471 OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000,
472 "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]),
473 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]),
474 OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]),
475 /* Only on am3517 */
476 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
477 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
478 &am35xx_emac_pdata),
479 OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call),
480 /* McBSP modules with sidetone core */
481 #if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
482 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata),
483 OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata),
484 #endif
485 #endif
486 #ifdef CONFIG_SOC_AM33XX
487 OF_DEV_AUXDATA("ti,am3352-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
488 &wkup_m3_data),
489 #endif
490 #ifdef CONFIG_SOC_AM43XX
491 OF_DEV_AUXDATA("ti,am4372-wkup-m3", 0x44d00000, "44d00000.wkup_m3",
492 &wkup_m3_data),
493 #endif
494 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
495 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
496 &omap4_iommu_pdata),
497 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
498 &omap4_iommu_pdata),
499 OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000,
500 "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]),
501 OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000,
502 "4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
503 OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000,
504 "4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]),
505 #endif
506 #ifdef CONFIG_SOC_DRA7XX
507 OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x4809c000, "4809c000.mmc",
508 &dra7_hsmmc_data_mmc1),
509 OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480b4000, "480b4000.mmc",
510 &dra7_hsmmc_data_mmc2),
511 OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480ad000, "480ad000.mmc",
512 &dra7_hsmmc_data_mmc3),
513 #endif
514 /* Common auxdata */
515 OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata),
516 OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
517 { /* sentinel */ },
521 * Few boards still need to initialize some legacy devices with
522 * platform data until the drivers support device tree.
524 static struct pdata_init pdata_quirks[] __initdata = {
525 #ifdef CONFIG_ARCH_OMAP3
526 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
527 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
528 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
529 { "nokia,omap3-n900", nokia_n900_legacy_init, },
530 { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
531 { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
532 { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, },
533 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
534 { "ti,am3517-evm", am3517_evm_legacy_init, },
535 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
536 { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
537 { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
538 #endif
539 #ifdef CONFIG_SOC_OMAP5
540 { "ti,omap5-uevm", omap5_uevm_legacy_init, },
541 #endif
542 #ifdef CONFIG_SOC_DRA7XX
543 { "ti,dra7-evm", dra7x_evm_mmc_quirk, },
544 #endif
545 { /* sentinel */ },
548 static void pdata_quirks_check(struct pdata_init *quirks)
550 while (quirks->compatible) {
551 if (of_machine_is_compatible(quirks->compatible)) {
552 if (quirks->fn)
553 quirks->fn();
555 quirks++;
559 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
562 * We still need this for omap2420 and omap3 PM to work, others are
563 * using drivers/misc/sram.c already.
565 if (of_machine_is_compatible("ti,omap2420") ||
566 of_machine_is_compatible("ti,omap3"))
567 omap_sdrc_init(NULL, NULL);
569 if (of_machine_is_compatible("ti,omap3"))
570 omap3_mcbsp_init();
571 pdata_quirks_check(auxdata_quirks);
572 of_platform_populate(NULL, omap_dt_match_table,
573 omap_auxdata_lookup, NULL);
574 pdata_quirks_check(pdata_quirks);