Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 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> |
Tony Lindgren | 7190031 | 2013-12-06 10:53:04 -0800 | [diff] [blame] | 11 | #include <linux/davinci_emac.h> |
Tony Lindgren | 5f0a2c6 | 2013-09-25 15:44:40 -0700 | [diff] [blame] | 12 | #include <linux/gpio.h> |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 13 | #include <linux/init.h> |
| 14 | #include <linux/kernel.h> |
Tony Lindgren | 8651bd8 | 2013-10-10 15:45:12 -0700 | [diff] [blame] | 15 | #include <linux/of_platform.h> |
Tony Lindgren | 5f0a2c6 | 2013-09-25 15:44:40 -0700 | [diff] [blame] | 16 | #include <linux/wl12xx.h> |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 17 | |
Tony Lindgren | 30a69ef | 2013-10-10 15:45:13 -0700 | [diff] [blame] | 18 | #include <linux/platform_data/pinctrl-single.h> |
| 19 | |
Tony Lindgren | 7190031 | 2013-12-06 10:53:04 -0800 | [diff] [blame] | 20 | #include "am35xx.h" |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 21 | #include "common.h" |
| 22 | #include "common-board-devices.h" |
| 23 | #include "dss-common.h" |
Aaro Koskinen | faf4bd4 | 2013-09-24 22:28:15 +0300 | [diff] [blame] | 24 | #include "control.h" |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 25 | |
| 26 | struct pdata_init { |
| 27 | const char *compatible; |
| 28 | void (*fn)(void); |
| 29 | }; |
| 30 | |
Tony Lindgren | fa590c9 | 2013-11-25 15:17:10 -0800 | [diff] [blame] | 31 | struct of_dev_auxdata omap_auxdata_lookup[]; |
Tony Lindgren | dad12d1 | 2013-12-06 10:52:58 -0800 | [diff] [blame] | 32 | static struct twl4030_gpio_platform_data twl_gpio_auxdata; |
Tony Lindgren | fa590c9 | 2013-11-25 15:17:10 -0800 | [diff] [blame] | 33 | |
Tony Lindgren | 3e7a318 | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 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 | |
Tony Lindgren | 5f0a2c6 | 2013-09-25 15:44:40 -0700 | [diff] [blame] | 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 | |
Tony Lindgren | fa590c9 | 2013-11-25 15:17:10 -0800 | [diff] [blame] | 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 | |
Aaro Koskinen | faf4bd4 | 2013-09-24 22:28:15 +0300 | [diff] [blame] | 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 | } |
Javier Martinez Canillas | 15c9887 | 2013-10-09 11:19:18 +0200 | [diff] [blame] | 94 | |
Tony Lindgren | 0f0cfc6 | 2013-12-18 13:13:21 -0800 | [diff] [blame] | 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, |
| 102 | "wlan rst"); |
| 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 | |
Javier Martinez Canillas | 15c9887 | 2013-10-09 11:19:18 +0200 | [diff] [blame] | 122 | static void __init omap3_igep0020_legacy_init(void) |
| 123 | { |
| 124 | omap3_igep2_display_init_of(); |
| 125 | } |
Tony Lindgren | 79b39f7 | 2013-10-11 09:20:54 -0700 | [diff] [blame] | 126 | |
| 127 | static void __init omap3_evm_legacy_init(void) |
| 128 | { |
| 129 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149); |
| 130 | } |
| 131 | |
| 132 | static void __init omap3_zoom_legacy_init(void) |
| 133 | { |
| 134 | legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162); |
| 135 | } |
Tony Lindgren | 7190031 | 2013-12-06 10:53:04 -0800 | [diff] [blame] | 136 | |
| 137 | static void am35xx_enable_emac_int(void) |
| 138 | { |
| 139 | u32 v; |
| 140 | |
| 141 | v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); |
| 142 | v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | |
| 143 | AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); |
| 144 | omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); |
| 145 | omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ |
| 146 | } |
| 147 | |
| 148 | static void am35xx_disable_emac_int(void) |
| 149 | { |
| 150 | u32 v; |
| 151 | |
| 152 | v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); |
| 153 | v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); |
| 154 | omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); |
| 155 | omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ |
| 156 | } |
| 157 | |
| 158 | static struct emac_platform_data am35xx_emac_pdata = { |
| 159 | .interrupt_enable = am35xx_enable_emac_int, |
| 160 | .interrupt_disable = am35xx_disable_emac_int, |
| 161 | }; |
| 162 | |
| 163 | static void __init am3517_evm_legacy_init(void) |
| 164 | { |
| 165 | u32 v; |
| 166 | |
| 167 | v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); |
| 168 | v &= ~AM35XX_CPGMACSS_SW_RST; |
| 169 | omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); |
| 170 | omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ |
| 171 | } |
Aaro Koskinen | faf4bd4 | 2013-09-24 22:28:15 +0300 | [diff] [blame] | 172 | #endif /* CONFIG_ARCH_OMAP3 */ |
| 173 | |
Tony Lindgren | 3e7a318 | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 174 | #ifdef CONFIG_ARCH_OMAP4 |
| 175 | static void __init omap4_sdp_legacy_init(void) |
| 176 | { |
| 177 | omap_4430sdp_display_init_of(); |
Tony Lindgren | 5f0a2c6 | 2013-09-25 15:44:40 -0700 | [diff] [blame] | 178 | legacy_init_wl12xx(WL12XX_REFCLOCK_26, |
| 179 | WL12XX_TCXOCLOCK_26, 53); |
Tony Lindgren | 3e7a318 | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | static void __init omap4_panda_legacy_init(void) |
| 183 | { |
| 184 | omap4_panda_display_init_of(); |
| 185 | legacy_init_ehci_clk("auxclk3_ck"); |
Tony Lindgren | 5f0a2c6 | 2013-09-25 15:44:40 -0700 | [diff] [blame] | 186 | legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53); |
Tony Lindgren | 3e7a318 | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 187 | } |
| 188 | #endif |
| 189 | |
| 190 | #ifdef CONFIG_SOC_OMAP5 |
| 191 | static void __init omap5_uevm_legacy_init(void) |
| 192 | { |
| 193 | legacy_init_ehci_clk("auxclk1_ck"); |
| 194 | } |
| 195 | #endif |
| 196 | |
Tony Lindgren | 30a69ef | 2013-10-10 15:45:13 -0700 | [diff] [blame] | 197 | static struct pcs_pdata pcs_pdata; |
| 198 | |
| 199 | void omap_pcs_legacy_init(int irq, void (*rearm)(void)) |
| 200 | { |
| 201 | pcs_pdata.irq = irq; |
| 202 | pcs_pdata.rearm = rearm; |
| 203 | } |
| 204 | |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 205 | /* |
Tony Lindgren | dad12d1 | 2013-12-06 10:52:58 -0800 | [diff] [blame] | 206 | * GPIOs for TWL are initialized by the I2C bus and need custom |
| 207 | * handing until DSS has device tree bindings. |
| 208 | */ |
| 209 | void omap_auxdata_legacy_init(struct device *dev) |
| 210 | { |
| 211 | if (dev->platform_data) |
| 212 | return; |
| 213 | |
| 214 | if (strcmp("twl4030-gpio", dev_name(dev))) |
| 215 | return; |
| 216 | |
| 217 | dev->platform_data = &twl_gpio_auxdata; |
| 218 | } |
| 219 | |
| 220 | /* |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 221 | * Few boards still need auxdata populated before we populate |
| 222 | * the dev entries in of_platform_populate(). |
| 223 | */ |
| 224 | static struct pdata_init auxdata_quirks[] __initdata = { |
Tony Lindgren | fa590c9 | 2013-11-25 15:17:10 -0800 | [diff] [blame] | 225 | #ifdef CONFIG_SOC_OMAP2420 |
| 226 | { "nokia,n800", omap2420_n8x0_legacy_init, }, |
| 227 | { "nokia,n810", omap2420_n8x0_legacy_init, }, |
| 228 | { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, |
| 229 | #endif |
Tony Lindgren | 0f0cfc6 | 2013-12-18 13:13:21 -0800 | [diff] [blame] | 230 | #ifdef CONFIG_ARCH_OMAP3 |
| 231 | { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, |
| 232 | #endif |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 233 | { /* sentinel */ }, |
| 234 | }; |
| 235 | |
Tony Lindgren | 8651bd8 | 2013-10-10 15:45:12 -0700 | [diff] [blame] | 236 | struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 237 | #ifdef CONFIG_MACH_NOKIA_N8X0 |
| 238 | OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), |
| 239 | #endif |
Tony Lindgren | 30a69ef | 2013-10-10 15:45:13 -0700 | [diff] [blame] | 240 | #ifdef CONFIG_ARCH_OMAP3 |
| 241 | OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata), |
| 242 | OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata), |
Tony Lindgren | 7190031 | 2013-12-06 10:53:04 -0800 | [diff] [blame] | 243 | /* Only on am3517 */ |
| 244 | OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), |
| 245 | OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", |
| 246 | &am35xx_emac_pdata), |
Tony Lindgren | 30a69ef | 2013-10-10 15:45:13 -0700 | [diff] [blame] | 247 | #endif |
| 248 | #ifdef CONFIG_ARCH_OMAP4 |
| 249 | OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata), |
| 250 | OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata), |
| 251 | #endif |
Tony Lindgren | 8651bd8 | 2013-10-10 15:45:12 -0700 | [diff] [blame] | 252 | { /* sentinel */ }, |
| 253 | }; |
| 254 | |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 255 | /* |
| 256 | * Few boards still need to initialize some legacy devices with |
| 257 | * platform data until the drivers support device tree. |
| 258 | */ |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 259 | static struct pdata_init pdata_quirks[] __initdata = { |
Aaro Koskinen | faf4bd4 | 2013-09-24 22:28:15 +0300 | [diff] [blame] | 260 | #ifdef CONFIG_ARCH_OMAP3 |
Tony Lindgren | 0f0cfc6 | 2013-12-18 13:13:21 -0800 | [diff] [blame] | 261 | { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, |
Tony Lindgren | edd5eb4 | 2013-11-25 14:23:45 -0800 | [diff] [blame] | 262 | { "nokia,omap3-n900", hsmmc2_internal_input_clk, }, |
Aaro Koskinen | faf4bd4 | 2013-09-24 22:28:15 +0300 | [diff] [blame] | 263 | { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, |
| 264 | { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, |
Javier Martinez Canillas | 15c9887 | 2013-10-09 11:19:18 +0200 | [diff] [blame] | 265 | { "isee,omap3-igep0020", omap3_igep0020_legacy_init, }, |
Tony Lindgren | 79b39f7 | 2013-10-11 09:20:54 -0700 | [diff] [blame] | 266 | { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, |
| 267 | { "ti,omap3-zoom3", omap3_zoom_legacy_init, }, |
Tony Lindgren | 7190031 | 2013-12-06 10:53:04 -0800 | [diff] [blame] | 268 | { "ti,am3517-evm", am3517_evm_legacy_init, }, |
Aaro Koskinen | faf4bd4 | 2013-09-24 22:28:15 +0300 | [diff] [blame] | 269 | #endif |
Tony Lindgren | 3e7a318 | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 270 | #ifdef CONFIG_ARCH_OMAP4 |
| 271 | { "ti,omap4-sdp", omap4_sdp_legacy_init, }, |
| 272 | { "ti,omap4-panda", omap4_panda_legacy_init, }, |
| 273 | #endif |
| 274 | #ifdef CONFIG_SOC_OMAP5 |
| 275 | { "ti,omap5-uevm", omap5_uevm_legacy_init, }, |
| 276 | #endif |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 277 | { /* sentinel */ }, |
| 278 | }; |
| 279 | |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 280 | static void pdata_quirks_check(struct pdata_init *quirks) |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 281 | { |
Tony Lindgren | 6a08e1e | 2013-09-25 15:44:39 -0700 | [diff] [blame] | 282 | while (quirks->compatible) { |
| 283 | if (of_machine_is_compatible(quirks->compatible)) { |
| 284 | if (quirks->fn) |
| 285 | quirks->fn(); |
| 286 | break; |
| 287 | } |
| 288 | quirks++; |
| 289 | } |
| 290 | } |
Tony Lindgren | 036582f | 2013-11-25 15:17:09 -0800 | [diff] [blame] | 291 | |
| 292 | void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table) |
| 293 | { |
| 294 | omap_sdrc_init(NULL, NULL); |
| 295 | pdata_quirks_check(auxdata_quirks); |
| 296 | of_platform_populate(NULL, omap_dt_match_table, |
| 297 | omap_auxdata_lookup, NULL); |
| 298 | pdata_quirks_check(pdata_quirks); |
| 299 | } |