2 * Legacy platform_data quirks
4 * Copyright (C) 2013 Texas Instruments
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.
10 #include <linux/clk.h>
11 #include <linux/davinci_emac.h>
12 #include <linux/gpio.h>
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/of_platform.h>
16 #include <linux/ti_wilink_st.h>
18 #include <linux/platform_data/pinctrl-single.h>
19 #include <linux/platform_data/iommu-omap.h>
22 #include "common-board-devices.h"
23 #include "dss-common.h"
25 #include "omap_device.h"
26 #include "omap-secure.h"
30 const char *compatible;
34 struct of_dev_auxdata omap_auxdata_lookup[];
35 static struct twl4030_gpio_platform_data twl_gpio_auxdata;
37 #ifdef CONFIG_MACH_NOKIA_N8X0
38 static void __init omap2420_n8x0_legacy_init(void)
40 omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
43 #define omap2420_n8x0_legacy_init NULL
46 #ifdef CONFIG_ARCH_OMAP3
47 static void __init hsmmc2_internal_input_clk(void)
51 reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
52 reg |= OMAP2_MMCSDIO2ADPCLKISEL;
53 omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
56 static struct iommu_platform_data omap3_iommu_pdata = {
58 .assert_reset = omap_device_assert_hardreset,
59 .deassert_reset = omap_device_deassert_hardreset,
62 static int omap3_sbc_t3730_twl_callback(struct device *dev,
68 res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
78 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
80 int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
83 pr_err("SBC-T3x: %s reset gpio request failed: %d\n",
91 gpio_set_value(gpio, 1);
95 static void __init omap3_sbc_t3730_twl_init(void)
97 twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
100 static void __init omap3_sbc_t3730_legacy_init(void)
102 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
105 static void __init omap3_sbc_t3530_legacy_init(void)
107 omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
110 struct ti_st_plat_data wilink_pdata = {
111 .nshutdown_gpio = 137,
112 .dev_name = "/dev/ttyO1",
117 static struct platform_device wl18xx_device = {
121 .platform_data = &wilink_pdata,
125 static struct platform_device btwilink_device = {
130 static void __init omap3_igep0020_rev_f_legacy_init(void)
132 platform_device_register(&wl18xx_device);
133 platform_device_register(&btwilink_device);
136 static void __init omap3_igep0030_rev_g_legacy_init(void)
138 platform_device_register(&wl18xx_device);
139 platform_device_register(&btwilink_device);
142 static void __init omap3_evm_legacy_init(void)
144 hsmmc2_internal_input_clk();
147 static void am35xx_enable_emac_int(void)
151 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
152 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
153 AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
154 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
155 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
158 static void am35xx_disable_emac_int(void)
162 v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
163 v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
164 omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
165 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
168 static struct emac_platform_data am35xx_emac_pdata = {
169 .interrupt_enable = am35xx_enable_emac_int,
170 .interrupt_disable = am35xx_disable_emac_int,
173 static void __init am35xx_emac_reset(void)
177 v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
178 v &= ~AM35XX_CPGMACSS_SW_RST;
179 omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
180 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
183 static struct gpio cm_t3517_wlan_gpios[] __initdata = {
184 { 56, GPIOF_OUT_INIT_HIGH, "wlan pwr" },
185 { 4, GPIOF_OUT_INIT_HIGH, "xcvr noe" },
188 static void __init omap3_sbc_t3517_wifi_init(void)
190 int err = gpio_request_array(cm_t3517_wlan_gpios,
191 ARRAY_SIZE(cm_t3517_wlan_gpios));
193 pr_err("SBC-T3517: wl12xx gpios request failed: %d\n", err);
197 gpio_export(cm_t3517_wlan_gpios[0].gpio, 0);
198 gpio_export(cm_t3517_wlan_gpios[1].gpio, 0);
201 gpio_set_value(cm_t3517_wlan_gpios[1].gpio, 0);
204 static void __init omap3_sbc_t3517_legacy_init(void)
206 omap3_sbc_t3x_usb_hub_init(152, "cm-t3517 usb hub");
207 omap3_sbc_t3x_usb_hub_init(98, "sb-t35 usb hub");
209 hsmmc2_internal_input_clk();
210 omap3_sbc_t3517_wifi_init();
213 static void __init am3517_evm_legacy_init(void)
218 static struct platform_device omap3_rom_rng_device = {
219 .name = "omap3-rom-rng",
222 .platform_data = rx51_secure_rng_call,
226 static void __init nokia_n900_legacy_init(void)
228 hsmmc2_internal_input_clk();
230 if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
231 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) {
232 pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
234 rx51_secure_update_aux_cr(BIT(6), 0);
236 pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
237 pr_warn("Thumb binaries may crash randomly without this workaround\n");
240 pr_info("RX-51: Registring OMAP3 HWRNG device\n");
241 platform_device_register(&omap3_rom_rng_device);
246 static void __init omap3_tao3530_legacy_init(void)
248 hsmmc2_internal_input_clk();
250 #endif /* CONFIG_ARCH_OMAP3 */
252 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
253 static struct iommu_platform_data omap4_iommu_pdata = {
254 .reset_name = "mmu_cache",
255 .assert_reset = omap_device_assert_hardreset,
256 .deassert_reset = omap_device_deassert_hardreset,
260 #ifdef CONFIG_SOC_OMAP5
261 static void __init omap5_uevm_legacy_init(void)
266 static struct pcs_pdata pcs_pdata;
268 void omap_pcs_legacy_init(int irq, void (*rearm)(void))
271 pcs_pdata.rearm = rearm;
275 * GPIOs for TWL are initialized by the I2C bus and need custom
276 * handing until DSS has device tree bindings.
278 void omap_auxdata_legacy_init(struct device *dev)
280 if (dev->platform_data)
283 if (strcmp("twl4030-gpio", dev_name(dev)))
286 dev->platform_data = &twl_gpio_auxdata;
290 * Few boards still need auxdata populated before we populate
291 * the dev entries in of_platform_populate().
293 static struct pdata_init auxdata_quirks[] __initdata = {
294 #ifdef CONFIG_SOC_OMAP2420
295 { "nokia,n800", omap2420_n8x0_legacy_init, },
296 { "nokia,n810", omap2420_n8x0_legacy_init, },
297 { "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
299 #ifdef CONFIG_ARCH_OMAP3
300 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
305 struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
306 #ifdef CONFIG_MACH_NOKIA_N8X0
307 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
308 OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data),
309 OF_DEV_AUXDATA("tlv320aic3x", 0x18, "2-0018", &n810_aic33_data),
311 #ifdef CONFIG_ARCH_OMAP3
312 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
313 OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata),
314 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
315 OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
318 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
319 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
322 #ifdef CONFIG_ARCH_OMAP4
323 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
324 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
326 #ifdef CONFIG_SOC_OMAP5
327 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4a002840, "4a002840.pinmux", &pcs_pdata),
328 OF_DEV_AUXDATA("ti,omap5-padconf", 0x4ae0c840, "4ae0c840.pinmux", &pcs_pdata),
330 #ifdef CONFIG_SOC_DRA7XX
331 OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata),
333 #ifdef CONFIG_SOC_AM43XX
334 OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
336 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
337 OF_DEV_AUXDATA("ti,omap4-iommu", 0x4a066000, "4a066000.mmu",
339 OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
346 * Few boards still need to initialize some legacy devices with
347 * platform data until the drivers support device tree.
349 static struct pdata_init pdata_quirks[] __initdata = {
350 #ifdef CONFIG_ARCH_OMAP3
351 { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, },
352 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, },
353 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
354 { "nokia,omap3-n900", nokia_n900_legacy_init, },
355 { "nokia,omap3-n9", hsmmc2_internal_input_clk, },
356 { "nokia,omap3-n950", hsmmc2_internal_input_clk, },
357 { "isee,omap3-igep0020-rev-f", omap3_igep0020_rev_f_legacy_init, },
358 { "isee,omap3-igep0030-rev-g", omap3_igep0030_rev_g_legacy_init, },
359 { "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
360 { "ti,am3517-evm", am3517_evm_legacy_init, },
361 { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, },
363 #ifdef CONFIG_SOC_OMAP5
364 { "ti,omap5-uevm", omap5_uevm_legacy_init, },
369 static void pdata_quirks_check(struct pdata_init *quirks)
371 while (quirks->compatible) {
372 if (of_machine_is_compatible(quirks->compatible)) {
381 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
383 omap_sdrc_init(NULL, NULL);
384 pdata_quirks_check(auxdata_quirks);
385 of_platform_populate(NULL, omap_dt_match_table,
386 omap_auxdata_lookup, NULL);
387 pdata_quirks_check(pdata_quirks);