Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 1 | /* |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 2 | * arch/arm/plat-omap/usb.c -- platform level USB initialization |
| 3 | * |
| 4 | * Copyright (C) 2004 Texas Instruments, Inc. |
| 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 as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #undef DEBUG |
| 22 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 23 | #include <linux/module.h> |
| 24 | #include <linux/kernel.h> |
| 25 | #include <linux/types.h> |
| 26 | #include <linux/errno.h> |
| 27 | #include <linux/init.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 28 | #include <linux/platform_device.h> |
David Brownell | 3a16f7b | 2006-06-29 12:27:23 -0700 | [diff] [blame] | 29 | #include <linux/usb/otg.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 30 | #include <linux/io.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 31 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 32 | #include <asm/irq.h> |
| 33 | #include <asm/system.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 34 | #include <mach/hardware.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 35 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 36 | #include <mach/control.h> |
| 37 | #include <mach/mux.h> |
| 38 | #include <mach/usb.h> |
| 39 | #include <mach/board.h> |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 40 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 41 | #ifdef CONFIG_ARCH_OMAP1 |
| 42 | |
| 43 | #define INT_USB_IRQ_GEN IH2_BASE + 20 |
| 44 | #define INT_USB_IRQ_NISO IH2_BASE + 30 |
| 45 | #define INT_USB_IRQ_ISO IH2_BASE + 29 |
| 46 | #define INT_USB_IRQ_HGEN INT_USB_HHC_1 |
| 47 | #define INT_USB_IRQ_OTG IH2_BASE + 8 |
| 48 | |
| 49 | #else |
| 50 | |
| 51 | #define INT_USB_IRQ_GEN INT_24XX_USB_IRQ_GEN |
| 52 | #define INT_USB_IRQ_NISO INT_24XX_USB_IRQ_NISO |
| 53 | #define INT_USB_IRQ_ISO INT_24XX_USB_IRQ_ISO |
| 54 | #define INT_USB_IRQ_HGEN INT_24XX_USB_IRQ_HGEN |
| 55 | #define INT_USB_IRQ_OTG INT_24XX_USB_IRQ_OTG |
| 56 | |
| 57 | #endif |
| 58 | |
| 59 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 60 | /* These routines should handle the standard chip-specific modes |
| 61 | * for usb0/1/2 ports, covering basic mux and transceiver setup. |
| 62 | * |
| 63 | * Some board-*.c files will need to set up additional mux options, |
| 64 | * like for suspend handling, vbus sensing, GPIOs, and the D+ pullup. |
| 65 | */ |
| 66 | |
| 67 | /* TESTED ON: |
| 68 | * - 1611B H2 (with usb1 mini-AB) using standard Mini-B or OTG cables |
| 69 | * - 5912 OSK OHCI (with usb0 standard-A), standard A-to-B cables |
| 70 | * - 5912 OSK UDC, with *nonstandard* A-to-A cable |
| 71 | * - 1510 Innovator UDC with bundled usb0 cable |
| 72 | * - 1510 Innovator OHCI with bundled usb1/usb2 cable |
| 73 | * - 1510 Innovator OHCI with custom usb0 cable, feeding 5V VBUS |
| 74 | * - 1710 custom development board using alternate pin group |
| 75 | * - 1710 H3 (with usb1 mini-AB) using standard Mini-B or OTG cables |
| 76 | */ |
| 77 | |
| 78 | /*-------------------------------------------------------------------------*/ |
| 79 | |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 80 | #if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_USB_MUSB_OTG) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 81 | |
| 82 | static struct otg_transceiver *xceiv; |
| 83 | |
| 84 | /** |
| 85 | * otg_get_transceiver - find the (single) OTG transceiver driver |
| 86 | * |
| 87 | * Returns the transceiver driver, after getting a refcount to it; or |
| 88 | * null if there is no such transceiver. The caller is responsible for |
| 89 | * releasing that count. |
| 90 | */ |
| 91 | struct otg_transceiver *otg_get_transceiver(void) |
| 92 | { |
| 93 | if (xceiv) |
| 94 | get_device(xceiv->dev); |
| 95 | return xceiv; |
| 96 | } |
| 97 | EXPORT_SYMBOL(otg_get_transceiver); |
| 98 | |
| 99 | int otg_set_transceiver(struct otg_transceiver *x) |
| 100 | { |
| 101 | if (xceiv && x) |
| 102 | return -EBUSY; |
| 103 | xceiv = x; |
| 104 | return 0; |
| 105 | } |
| 106 | EXPORT_SYMBOL(otg_set_transceiver); |
| 107 | |
| 108 | #endif |
| 109 | |
| 110 | /*-------------------------------------------------------------------------*/ |
| 111 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 112 | #if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX) |
| 113 | |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 114 | static void omap2_usb_devconf_clear(u8 port, u32 mask) |
| 115 | { |
| 116 | u32 r; |
| 117 | |
| 118 | r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
| 119 | r &= ~USBTXWRMODEI(port, mask); |
| 120 | omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); |
| 121 | } |
| 122 | |
| 123 | static void omap2_usb_devconf_set(u8 port, u32 mask) |
| 124 | { |
| 125 | u32 r; |
| 126 | |
| 127 | r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
| 128 | r |= USBTXWRMODEI(port, mask); |
| 129 | omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); |
| 130 | } |
| 131 | |
| 132 | static void omap2_usb2_disable_5pinbitll(void) |
| 133 | { |
| 134 | u32 r; |
| 135 | |
| 136 | r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
| 137 | r &= ~(USBTXWRMODEI(2, USB_BIDIR_TLL) | USBT2TLL5PI); |
| 138 | omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); |
| 139 | } |
| 140 | |
| 141 | static void omap2_usb2_enable_5pinunitll(void) |
| 142 | { |
| 143 | u32 r; |
| 144 | |
| 145 | r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
| 146 | r |= USBTXWRMODEI(2, USB_UNIDIR_TLL) | USBT2TLL5PI; |
| 147 | omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); |
| 148 | } |
| 149 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 150 | static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device) |
| 151 | { |
| 152 | u32 syscon1 = 0; |
| 153 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 154 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 155 | omap2_usb_devconf_clear(0, USB_BIDIR_TLL); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 156 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 157 | if (nwires == 0) { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 158 | if (cpu_class_is_omap1() && !cpu_is_omap15xx()) { |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 159 | u32 l; |
| 160 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 161 | /* pulldown D+/D- */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 162 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 163 | l &= ~(3 << 1); |
| 164 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 165 | } |
| 166 | return 0; |
| 167 | } |
| 168 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 169 | if (is_device) { |
| 170 | if (cpu_is_omap24xx()) |
| 171 | omap_cfg_reg(J20_24XX_USB0_PUEN); |
| 172 | else |
| 173 | omap_cfg_reg(W4_USB_PUEN); |
| 174 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 175 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 176 | /* internal transceiver (unavailable on 17xx, 24xx) */ |
| 177 | if (!cpu_class_is_omap2() && nwires == 2) { |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 178 | u32 l; |
| 179 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 180 | // omap_cfg_reg(P9_USB_DP); |
| 181 | // omap_cfg_reg(R8_USB_DM); |
| 182 | |
| 183 | if (cpu_is_omap15xx()) { |
| 184 | /* This works on 1510-Innovator */ |
| 185 | return 0; |
| 186 | } |
| 187 | |
| 188 | /* NOTES: |
| 189 | * - peripheral should configure VBUS detection! |
| 190 | * - only peripherals may use the internal D+/D- pulldowns |
| 191 | * - OTG support on this port not yet written |
| 192 | */ |
| 193 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 194 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 195 | l &= ~(7 << 4); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 196 | if (!is_device) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 197 | l |= (3 << 1); |
| 198 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 199 | |
| 200 | return 3 << 16; |
| 201 | } |
| 202 | |
| 203 | /* alternate pin config, external transceiver */ |
| 204 | if (cpu_is_omap15xx()) { |
| 205 | printk(KERN_ERR "no usb0 alt pin config on 15xx\n"); |
| 206 | return 0; |
| 207 | } |
| 208 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 209 | if (cpu_is_omap24xx()) { |
| 210 | omap_cfg_reg(K18_24XX_USB0_DAT); |
| 211 | omap_cfg_reg(K19_24XX_USB0_TXEN); |
| 212 | omap_cfg_reg(J14_24XX_USB0_SE0); |
| 213 | if (nwires != 3) |
| 214 | omap_cfg_reg(J18_24XX_USB0_RCV); |
| 215 | } else { |
| 216 | omap_cfg_reg(V6_USB0_TXD); |
| 217 | omap_cfg_reg(W9_USB0_TXEN); |
| 218 | omap_cfg_reg(W5_USB0_SE0); |
| 219 | if (nwires != 3) |
| 220 | omap_cfg_reg(Y5_USB0_RCV); |
| 221 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 222 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 223 | /* NOTE: SPEED and SUSP aren't configured here. OTG hosts |
| 224 | * may be able to use I2C requests to set those bits along |
Simon Arlott | 6cbdc8c | 2007-05-11 20:40:30 +0100 | [diff] [blame] | 225 | * with VBUS switching and overcurrent detection. |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 226 | */ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 227 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 228 | if (cpu_class_is_omap1() && nwires != 6) { |
| 229 | u32 l; |
| 230 | |
| 231 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 232 | l &= ~CONF_USB2_UNI_R; |
| 233 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
| 234 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 235 | |
| 236 | switch (nwires) { |
| 237 | case 3: |
| 238 | syscon1 = 2; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 239 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 240 | omap2_usb_devconf_set(0, USB_BIDIR); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 241 | break; |
| 242 | case 4: |
| 243 | syscon1 = 1; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 244 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 245 | omap2_usb_devconf_set(0, USB_BIDIR); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 246 | break; |
| 247 | case 6: |
| 248 | syscon1 = 3; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 249 | if (cpu_is_omap24xx()) { |
| 250 | omap_cfg_reg(J19_24XX_USB0_VP); |
| 251 | omap_cfg_reg(K20_24XX_USB0_VM); |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 252 | omap2_usb_devconf_set(0, USB_UNIDIR); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 253 | } else { |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 254 | u32 l; |
| 255 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 256 | omap_cfg_reg(AA9_USB0_VP); |
| 257 | omap_cfg_reg(R9_USB0_VM); |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 258 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 259 | l |= CONF_USB2_UNI_R; |
| 260 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 261 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 262 | break; |
| 263 | default: |
| 264 | printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", |
| 265 | 0, nwires); |
| 266 | } |
| 267 | return syscon1 << 16; |
| 268 | } |
| 269 | |
| 270 | static u32 __init omap_usb1_init(unsigned nwires) |
| 271 | { |
| 272 | u32 syscon1 = 0; |
| 273 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 274 | if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6) { |
| 275 | u32 l; |
| 276 | |
| 277 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 278 | l &= ~CONF_USB1_UNI_R; |
| 279 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
| 280 | } |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 281 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 282 | omap2_usb_devconf_clear(1, USB_BIDIR_TLL); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 283 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 284 | if (nwires == 0) |
| 285 | return 0; |
| 286 | |
| 287 | /* external transceiver */ |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 288 | if (cpu_class_is_omap1()) { |
| 289 | omap_cfg_reg(USB1_TXD); |
| 290 | omap_cfg_reg(USB1_TXEN); |
| 291 | if (nwires != 3) |
| 292 | omap_cfg_reg(USB1_RCV); |
| 293 | } |
| 294 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 295 | if (cpu_is_omap15xx()) { |
| 296 | omap_cfg_reg(USB1_SEO); |
| 297 | omap_cfg_reg(USB1_SPEED); |
| 298 | // SUSP |
| 299 | } else if (cpu_is_omap1610() || cpu_is_omap5912()) { |
| 300 | omap_cfg_reg(W13_1610_USB1_SE0); |
| 301 | omap_cfg_reg(R13_1610_USB1_SPEED); |
| 302 | // SUSP |
| 303 | } else if (cpu_is_omap1710()) { |
| 304 | omap_cfg_reg(R13_1710_USB1_SE0); |
| 305 | // SUSP |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 306 | } else if (cpu_is_omap24xx()) { |
| 307 | /* NOTE: board-specific code must set up pin muxing for usb1, |
| 308 | * since each signal could come out on either of two balls. |
| 309 | */ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 310 | } else { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 311 | pr_debug("usb%d cpu unrecognized\n", 1); |
| 312 | return 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 313 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 314 | |
| 315 | switch (nwires) { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 316 | case 2: |
| 317 | if (!cpu_is_omap24xx()) |
| 318 | goto bad; |
| 319 | /* NOTE: board-specific code must override this setting if |
| 320 | * this TLL link is not using DP/DM |
| 321 | */ |
| 322 | syscon1 = 1; |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 323 | omap2_usb_devconf_set(1, USB_BIDIR_TLL); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 324 | break; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 325 | case 3: |
| 326 | syscon1 = 2; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 327 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 328 | omap2_usb_devconf_set(1, USB_BIDIR); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 329 | break; |
| 330 | case 4: |
| 331 | syscon1 = 1; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 332 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 333 | omap2_usb_devconf_set(1, USB_BIDIR); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 334 | break; |
| 335 | case 6: |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 336 | if (cpu_is_omap24xx()) |
| 337 | goto bad; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 338 | syscon1 = 3; |
| 339 | omap_cfg_reg(USB1_VP); |
| 340 | omap_cfg_reg(USB1_VM); |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 341 | if (!cpu_is_omap15xx()) { |
| 342 | u32 l; |
| 343 | |
| 344 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 345 | l |= CONF_USB1_UNI_R; |
| 346 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
| 347 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 348 | break; |
| 349 | default: |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 350 | bad: |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 351 | printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", |
| 352 | 1, nwires); |
| 353 | } |
| 354 | return syscon1 << 20; |
| 355 | } |
| 356 | |
| 357 | static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup) |
| 358 | { |
| 359 | u32 syscon1 = 0; |
| 360 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 361 | if (cpu_is_omap24xx()) { |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 362 | omap2_usb2_disable_5pinbitll(); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 363 | alt_pingroup = 0; |
| 364 | } |
| 365 | |
| 366 | /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 367 | if (alt_pingroup || nwires == 0) |
| 368 | return 0; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 369 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 370 | if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6) { |
| 371 | u32 l; |
| 372 | |
| 373 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 374 | l &= ~CONF_USB2_UNI_R; |
| 375 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
| 376 | } |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 377 | |
| 378 | /* external transceiver */ |
| 379 | if (cpu_is_omap15xx()) { |
| 380 | omap_cfg_reg(USB2_TXD); |
| 381 | omap_cfg_reg(USB2_TXEN); |
| 382 | omap_cfg_reg(USB2_SEO); |
| 383 | if (nwires != 3) |
| 384 | omap_cfg_reg(USB2_RCV); |
| 385 | /* there is no USB2_SPEED */ |
| 386 | } else if (cpu_is_omap16xx()) { |
| 387 | omap_cfg_reg(V6_USB2_TXD); |
| 388 | omap_cfg_reg(W9_USB2_TXEN); |
| 389 | omap_cfg_reg(W5_USB2_SE0); |
| 390 | if (nwires != 3) |
| 391 | omap_cfg_reg(Y5_USB2_RCV); |
| 392 | // FIXME omap_cfg_reg(USB2_SPEED); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 393 | } else if (cpu_is_omap24xx()) { |
| 394 | omap_cfg_reg(Y11_24XX_USB2_DAT); |
| 395 | omap_cfg_reg(AA10_24XX_USB2_SE0); |
| 396 | if (nwires > 2) |
| 397 | omap_cfg_reg(AA12_24XX_USB2_TXEN); |
| 398 | if (nwires > 3) |
| 399 | omap_cfg_reg(AA6_24XX_USB2_RCV); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 400 | } else { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 401 | pr_debug("usb%d cpu unrecognized\n", 1); |
| 402 | return 0; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 403 | } |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 404 | // if (cpu_class_is_omap1()) omap_cfg_reg(USB2_SUSP); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 405 | |
| 406 | switch (nwires) { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 407 | case 2: |
| 408 | if (!cpu_is_omap24xx()) |
| 409 | goto bad; |
| 410 | /* NOTE: board-specific code must override this setting if |
| 411 | * this TLL link is not using DP/DM |
| 412 | */ |
| 413 | syscon1 = 1; |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 414 | omap2_usb_devconf_set(2, USB_BIDIR_TLL); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 415 | break; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 416 | case 3: |
| 417 | syscon1 = 2; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 418 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 419 | omap2_usb_devconf_set(2, USB_BIDIR); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 420 | break; |
| 421 | case 4: |
| 422 | syscon1 = 1; |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 423 | if (cpu_is_omap24xx()) |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 424 | omap2_usb_devconf_set(2, USB_BIDIR); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 425 | break; |
| 426 | case 5: |
| 427 | if (!cpu_is_omap24xx()) |
| 428 | goto bad; |
| 429 | omap_cfg_reg(AA4_24XX_USB2_TLLSE0); |
| 430 | /* NOTE: board-specific code must override this setting if |
| 431 | * this TLL link is not using DP/DM. Something must also |
| 432 | * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED} |
| 433 | */ |
| 434 | syscon1 = 3; |
Paul Walmsley | 69d88a0 | 2008-03-18 10:02:50 +0200 | [diff] [blame] | 435 | omap2_usb2_enable_5pinunitll(); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 436 | break; |
| 437 | case 6: |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 438 | if (cpu_is_omap24xx()) |
| 439 | goto bad; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 440 | syscon1 = 3; |
| 441 | if (cpu_is_omap15xx()) { |
| 442 | omap_cfg_reg(USB2_VP); |
| 443 | omap_cfg_reg(USB2_VM); |
| 444 | } else { |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 445 | u32 l; |
| 446 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 447 | omap_cfg_reg(AA9_USB2_VP); |
| 448 | omap_cfg_reg(R9_USB2_VM); |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 449 | l = omap_readl(USB_TRANSCEIVER_CTRL); |
| 450 | l |= CONF_USB2_UNI_R; |
| 451 | omap_writel(l, USB_TRANSCEIVER_CTRL); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 452 | } |
| 453 | break; |
| 454 | default: |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 455 | bad: |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 456 | printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", |
| 457 | 2, nwires); |
| 458 | } |
| 459 | return syscon1 << 24; |
| 460 | } |
| 461 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 462 | #endif |
| 463 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 464 | /*-------------------------------------------------------------------------*/ |
| 465 | |
| 466 | #if defined(CONFIG_USB_GADGET_OMAP) || \ |
| 467 | defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) || \ |
| 468 | (defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG)) |
| 469 | static void usb_release(struct device *dev) |
| 470 | { |
| 471 | /* normally not freed */ |
| 472 | } |
| 473 | #endif |
| 474 | |
| 475 | #ifdef CONFIG_USB_GADGET_OMAP |
| 476 | |
| 477 | static struct resource udc_resources[] = { |
| 478 | /* order is significant! */ |
| 479 | { /* registers */ |
| 480 | .start = UDC_BASE, |
| 481 | .end = UDC_BASE + 0xff, |
| 482 | .flags = IORESOURCE_MEM, |
| 483 | }, { /* general IRQ */ |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 484 | .start = INT_USB_IRQ_GEN, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 485 | .flags = IORESOURCE_IRQ, |
| 486 | }, { /* PIO IRQ */ |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 487 | .start = INT_USB_IRQ_NISO, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 488 | .flags = IORESOURCE_IRQ, |
| 489 | }, { /* SOF IRQ */ |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 490 | .start = INT_USB_IRQ_ISO, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 491 | .flags = IORESOURCE_IRQ, |
| 492 | }, |
| 493 | }; |
| 494 | |
| 495 | static u64 udc_dmamask = ~(u32)0; |
| 496 | |
| 497 | static struct platform_device udc_device = { |
| 498 | .name = "omap_udc", |
| 499 | .id = -1, |
| 500 | .dev = { |
| 501 | .release = usb_release, |
| 502 | .dma_mask = &udc_dmamask, |
| 503 | .coherent_dma_mask = 0xffffffff, |
| 504 | }, |
| 505 | .num_resources = ARRAY_SIZE(udc_resources), |
| 506 | .resource = udc_resources, |
| 507 | }; |
| 508 | |
| 509 | #endif |
| 510 | |
| 511 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
| 512 | |
| 513 | /* The dmamask must be set for OHCI to work */ |
| 514 | static u64 ohci_dmamask = ~(u32)0; |
| 515 | |
| 516 | static struct resource ohci_resources[] = { |
| 517 | { |
| 518 | .start = OMAP_OHCI_BASE, |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 519 | .end = OMAP_OHCI_BASE + 0xff, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 520 | .flags = IORESOURCE_MEM, |
| 521 | }, |
| 522 | { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 523 | .start = INT_USB_IRQ_HGEN, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 524 | .flags = IORESOURCE_IRQ, |
| 525 | }, |
| 526 | }; |
| 527 | |
| 528 | static struct platform_device ohci_device = { |
| 529 | .name = "ohci", |
| 530 | .id = -1, |
| 531 | .dev = { |
| 532 | .release = usb_release, |
| 533 | .dma_mask = &ohci_dmamask, |
| 534 | .coherent_dma_mask = 0xffffffff, |
| 535 | }, |
| 536 | .num_resources = ARRAY_SIZE(ohci_resources), |
| 537 | .resource = ohci_resources, |
| 538 | }; |
| 539 | |
| 540 | #endif |
| 541 | |
| 542 | #if defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG) |
| 543 | |
| 544 | static struct resource otg_resources[] = { |
| 545 | /* order is significant! */ |
| 546 | { |
| 547 | .start = OTG_BASE, |
| 548 | .end = OTG_BASE + 0xff, |
| 549 | .flags = IORESOURCE_MEM, |
| 550 | }, { |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 551 | .start = INT_USB_IRQ_OTG, |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 552 | .flags = IORESOURCE_IRQ, |
| 553 | }, |
| 554 | }; |
| 555 | |
| 556 | static struct platform_device otg_device = { |
| 557 | .name = "omap_otg", |
| 558 | .id = -1, |
| 559 | .dev = { |
| 560 | .release = usb_release, |
| 561 | }, |
| 562 | .num_resources = ARRAY_SIZE(otg_resources), |
| 563 | .resource = otg_resources, |
| 564 | }; |
| 565 | |
| 566 | #endif |
| 567 | |
| 568 | /*-------------------------------------------------------------------------*/ |
| 569 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 570 | // FIXME correct answer depends on hmc_mode, |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 571 | // as does (on omap1) any nonzero value for config->otg port number |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 572 | #ifdef CONFIG_USB_GADGET_OMAP |
| 573 | #define is_usb0_device(config) 1 |
| 574 | #else |
| 575 | #define is_usb0_device(config) 0 |
| 576 | #endif |
| 577 | |
| 578 | /*-------------------------------------------------------------------------*/ |
| 579 | |
| 580 | #ifdef CONFIG_ARCH_OMAP_OTG |
| 581 | |
| 582 | void __init |
| 583 | omap_otg_init(struct omap_usb_config *config) |
| 584 | { |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 585 | u32 syscon; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 586 | int status; |
| 587 | int alt_pingroup = 0; |
| 588 | |
| 589 | /* NOTE: no bus or clock setup (yet?) */ |
| 590 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 591 | syscon = omap_readl(OTG_SYSCON_1) & 0xffff; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 592 | if (!(syscon & OTG_RESET_DONE)) |
| 593 | pr_debug("USB resets not complete?\n"); |
| 594 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 595 | //omap_writew(0, OTG_IRQ_EN); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 596 | |
| 597 | /* pin muxing and transceiver pinouts */ |
| 598 | if (config->pins[0] > 2) /* alt pingroup 2 */ |
| 599 | alt_pingroup = 1; |
| 600 | syscon |= omap_usb0_init(config->pins[0], is_usb0_device(config)); |
| 601 | syscon |= omap_usb1_init(config->pins[1]); |
| 602 | syscon |= omap_usb2_init(config->pins[2], alt_pingroup); |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 603 | pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1)); |
| 604 | omap_writel(syscon, OTG_SYSCON_1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 605 | |
| 606 | syscon = config->hmc_mode; |
| 607 | syscon |= USBX_SYNCHRO | (4 << 16) /* B_ASE0_BRST */; |
| 608 | #ifdef CONFIG_USB_OTG |
| 609 | if (config->otg) |
| 610 | syscon |= OTG_EN; |
| 611 | #endif |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 612 | if (cpu_class_is_omap1()) |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 613 | pr_debug("USB_TRANSCEIVER_CTRL = %03x\n", |
| 614 | omap_readl(USB_TRANSCEIVER_CTRL)); |
| 615 | pr_debug("OTG_SYSCON_2 = %08x\n", omap_readl(OTG_SYSCON_2)); |
| 616 | omap_writel(syscon, OTG_SYSCON_2); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 617 | |
| 618 | printk("USB: hmc %d", config->hmc_mode); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 619 | if (!alt_pingroup) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 620 | printk(", usb2 alt %d wires", config->pins[2]); |
| 621 | else if (config->pins[0]) |
| 622 | printk(", usb0 %d wires%s", config->pins[0], |
| 623 | is_usb0_device(config) ? " (dev)" : ""); |
| 624 | if (config->pins[1]) |
| 625 | printk(", usb1 %d wires", config->pins[1]); |
| 626 | if (!alt_pingroup && config->pins[2]) |
| 627 | printk(", usb2 %d wires", config->pins[2]); |
| 628 | if (config->otg) |
| 629 | printk(", Mini-AB on usb%d", config->otg - 1); |
| 630 | printk("\n"); |
| 631 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 632 | if (cpu_class_is_omap1()) { |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 633 | u16 w; |
| 634 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 635 | /* leave USB clocks/controllers off until needed */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 636 | w = omap_readw(ULPD_SOFT_REQ); |
| 637 | w &= ~SOFT_USB_CLK_REQ; |
| 638 | omap_writew(w, ULPD_SOFT_REQ); |
| 639 | |
| 640 | w = omap_readw(ULPD_CLOCK_CTRL); |
| 641 | w &= ~USB_MCLK_EN; |
| 642 | w |= DIS_USB_PVCI_CLK; |
| 643 | omap_writew(w, ULPD_CLOCK_CTRL); |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 644 | } |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 645 | syscon = omap_readl(OTG_SYSCON_1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 646 | syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN; |
| 647 | |
| 648 | #ifdef CONFIG_USB_GADGET_OMAP |
| 649 | if (config->otg || config->register_dev) { |
| 650 | syscon &= ~DEV_IDLE_EN; |
| 651 | udc_device.dev.platform_data = config; |
| 652 | /* FIXME patch IRQ numbers for omap730 */ |
| 653 | status = platform_device_register(&udc_device); |
| 654 | if (status) |
| 655 | pr_debug("can't register UDC device, %d\n", status); |
| 656 | } |
| 657 | #endif |
| 658 | |
| 659 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
| 660 | if (config->otg || config->register_host) { |
| 661 | syscon &= ~HST_IDLE_EN; |
| 662 | ohci_device.dev.platform_data = config; |
| 663 | if (cpu_is_omap730()) |
| 664 | ohci_resources[1].start = INT_730_USB_HHC_1; |
| 665 | status = platform_device_register(&ohci_device); |
| 666 | if (status) |
| 667 | pr_debug("can't register OHCI device, %d\n", status); |
| 668 | } |
| 669 | #endif |
| 670 | |
| 671 | #ifdef CONFIG_USB_OTG |
| 672 | if (config->otg) { |
| 673 | syscon &= ~OTG_IDLE_EN; |
| 674 | otg_device.dev.platform_data = config; |
| 675 | if (cpu_is_omap730()) |
| 676 | otg_resources[1].start = INT_730_USB_OTG; |
| 677 | status = platform_device_register(&otg_device); |
| 678 | if (status) |
| 679 | pr_debug("can't register OTG device, %d\n", status); |
| 680 | } |
| 681 | #endif |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 682 | pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1)); |
| 683 | omap_writel(syscon, OTG_SYSCON_1); |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 684 | |
| 685 | status = 0; |
| 686 | } |
| 687 | |
| 688 | #else |
| 689 | static inline void omap_otg_init(struct omap_usb_config *config) {} |
| 690 | #endif |
| 691 | |
| 692 | /*-------------------------------------------------------------------------*/ |
| 693 | |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 694 | #ifdef CONFIG_ARCH_OMAP15XX |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 695 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 696 | /* ULPD_DPLL_CTRL */ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 697 | #define DPLL_IOB (1 << 13) |
| 698 | #define DPLL_PLL_ENABLE (1 << 4) |
| 699 | #define DPLL_LOCK (1 << 0) |
| 700 | |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 701 | /* ULPD_APLL_CTRL */ |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 702 | #define APLL_NDPLL_SWITCH (1 << 0) |
| 703 | |
| 704 | |
| 705 | static void __init omap_1510_usb_init(struct omap_usb_config *config) |
| 706 | { |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 707 | unsigned int val; |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 708 | u16 w; |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 709 | |
| 710 | omap_usb0_init(config->pins[0], is_usb0_device(config)); |
| 711 | omap_usb1_init(config->pins[1]); |
| 712 | omap_usb2_init(config->pins[2], 0); |
| 713 | |
| 714 | val = omap_readl(MOD_CONF_CTRL_0) & ~(0x3f << 1); |
| 715 | val |= (config->hmc_mode << 1); |
| 716 | omap_writel(val, MOD_CONF_CTRL_0); |
| 717 | |
| 718 | printk("USB: hmc %d", config->hmc_mode); |
| 719 | if (config->pins[0]) |
| 720 | printk(", usb0 %d wires%s", config->pins[0], |
| 721 | is_usb0_device(config) ? " (dev)" : ""); |
| 722 | if (config->pins[1]) |
| 723 | printk(", usb1 %d wires", config->pins[1]); |
| 724 | if (config->pins[2]) |
| 725 | printk(", usb2 %d wires", config->pins[2]); |
| 726 | printk("\n"); |
| 727 | |
| 728 | /* use DPLL for 48 MHz function clock */ |
Tony Lindgren | f35ae63 | 2008-07-03 12:24:43 +0300 | [diff] [blame] | 729 | pr_debug("APLL %04x DPLL %04x REQ %04x\n", omap_readw(ULPD_APLL_CTRL), |
| 730 | omap_readw(ULPD_DPLL_CTRL), omap_readw(ULPD_SOFT_REQ)); |
| 731 | |
| 732 | w = omap_readw(ULPD_APLL_CTRL); |
| 733 | w &= ~APLL_NDPLL_SWITCH; |
| 734 | omap_writew(w, ULPD_APLL_CTRL); |
| 735 | |
| 736 | w = omap_readw(ULPD_DPLL_CTRL); |
| 737 | w |= DPLL_IOB | DPLL_PLL_ENABLE; |
| 738 | omap_writew(w, ULPD_DPLL_CTRL); |
| 739 | |
| 740 | w = omap_readw(ULPD_SOFT_REQ); |
| 741 | w |= SOFT_UDC_REQ | SOFT_DPLL_REQ; |
| 742 | omap_writew(w, ULPD_SOFT_REQ); |
| 743 | |
| 744 | while (!(omap_readw(ULPD_DPLL_CTRL) & DPLL_LOCK)) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 745 | cpu_relax(); |
| 746 | |
| 747 | #ifdef CONFIG_USB_GADGET_OMAP |
| 748 | if (config->register_dev) { |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 749 | int status; |
| 750 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 751 | udc_device.dev.platform_data = config; |
| 752 | status = platform_device_register(&udc_device); |
| 753 | if (status) |
| 754 | pr_debug("can't register UDC device, %d\n", status); |
| 755 | /* udc driver gates 48MHz by D+ pullup */ |
| 756 | } |
| 757 | #endif |
| 758 | |
| 759 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
| 760 | if (config->register_host) { |
Tony Lindgren | 1a8bfa1 | 2005-11-10 14:26:50 +0000 | [diff] [blame] | 761 | int status; |
| 762 | |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 763 | ohci_device.dev.platform_data = config; |
| 764 | status = platform_device_register(&ohci_device); |
| 765 | if (status) |
| 766 | pr_debug("can't register OHCI device, %d\n", status); |
| 767 | /* hcd explicitly gates 48MHz */ |
| 768 | } |
| 769 | #endif |
| 770 | } |
| 771 | |
| 772 | #else |
| 773 | static inline void omap_1510_usb_init(struct omap_usb_config *config) {} |
| 774 | #endif |
| 775 | |
| 776 | /*-------------------------------------------------------------------------*/ |
| 777 | |
| 778 | static struct omap_usb_config platform_data; |
| 779 | |
| 780 | static int __init |
| 781 | omap_usb_init(void) |
| 782 | { |
| 783 | const struct omap_usb_config *config; |
| 784 | |
| 785 | config = omap_get_config(OMAP_TAG_USB, struct omap_usb_config); |
| 786 | if (config == NULL) { |
| 787 | printk(KERN_ERR "USB: No board-specific " |
| 788 | "platform config found\n"); |
| 789 | return -ENODEV; |
| 790 | } |
| 791 | platform_data = *config; |
| 792 | |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 793 | if (cpu_is_omap730() || cpu_is_omap16xx() || cpu_is_omap24xx()) |
Tony Lindgren | 5e1c5ff | 2005-07-10 19:58:15 +0100 | [diff] [blame] | 794 | omap_otg_init(&platform_data); |
| 795 | else if (cpu_is_omap15xx()) |
| 796 | omap_1510_usb_init(&platform_data); |
| 797 | else { |
| 798 | printk(KERN_ERR "USB: No init for your chip yet\n"); |
| 799 | return -ENODEV; |
| 800 | } |
| 801 | return 0; |
| 802 | } |
| 803 | |
| 804 | subsys_initcall(omap_usb_init); |