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Diffstat (limited to 'arch/arm/plat-omap/usb.c')
-rw-r--r--arch/arm/plat-omap/usb.c67
1 files changed, 51 insertions, 16 deletions
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c
index a5aedf964b88..a619475c4b76 100644
--- a/arch/arm/plat-omap/usb.c
+++ b/arch/arm/plat-omap/usb.c
@@ -33,6 +33,7 @@
33#include <asm/system.h> 33#include <asm/system.h>
34#include <asm/hardware.h> 34#include <asm/hardware.h>
35 35
36#include <asm/arch/control.h>
36#include <asm/arch/mux.h> 37#include <asm/arch/mux.h>
37#include <asm/arch/usb.h> 38#include <asm/arch/usb.h>
38#include <asm/arch/board.h> 39#include <asm/arch/board.h>
@@ -76,7 +77,7 @@
76 77
77/*-------------------------------------------------------------------------*/ 78/*-------------------------------------------------------------------------*/
78 79
79#ifdef CONFIG_ARCH_OMAP_OTG 80#if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_USB_MUSB_OTG)
80 81
81static struct otg_transceiver *xceiv; 82static struct otg_transceiver *xceiv;
82 83
@@ -110,12 +111,48 @@ EXPORT_SYMBOL(otg_set_transceiver);
110 111
111#if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX) 112#if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX)
112 113
114static 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
123static 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
132static 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
141static 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
113static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device) 150static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
114{ 151{
115 u32 syscon1 = 0; 152 u32 syscon1 = 0;
116 153
117 if (cpu_is_omap24xx()) 154 if (cpu_is_omap24xx())
118 CONTROL_DEVCONF_REG &= ~USBT0WRMODEI(USB_BIDIR_TLL); 155 omap2_usb_devconf_clear(0, USB_BIDIR_TLL);
119 156
120 if (nwires == 0) { 157 if (nwires == 0) {
121 if (cpu_class_is_omap1() && !cpu_is_omap15xx()) { 158 if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
@@ -187,19 +224,19 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
187 case 3: 224 case 3:
188 syscon1 = 2; 225 syscon1 = 2;
189 if (cpu_is_omap24xx()) 226 if (cpu_is_omap24xx())
190 CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR); 227 omap2_usb_devconf_set(0, USB_BIDIR);
191 break; 228 break;
192 case 4: 229 case 4:
193 syscon1 = 1; 230 syscon1 = 1;
194 if (cpu_is_omap24xx()) 231 if (cpu_is_omap24xx())
195 CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR); 232 omap2_usb_devconf_set(0, USB_BIDIR);
196 break; 233 break;
197 case 6: 234 case 6:
198 syscon1 = 3; 235 syscon1 = 3;
199 if (cpu_is_omap24xx()) { 236 if (cpu_is_omap24xx()) {
200 omap_cfg_reg(J19_24XX_USB0_VP); 237 omap_cfg_reg(J19_24XX_USB0_VP);
201 omap_cfg_reg(K20_24XX_USB0_VM); 238 omap_cfg_reg(K20_24XX_USB0_VM);
202 CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_UNIDIR); 239 omap2_usb_devconf_set(0, USB_UNIDIR);
203 } else { 240 } else {
204 omap_cfg_reg(AA9_USB0_VP); 241 omap_cfg_reg(AA9_USB0_VP);
205 omap_cfg_reg(R9_USB0_VM); 242 omap_cfg_reg(R9_USB0_VM);
@@ -220,7 +257,7 @@ static u32 __init omap_usb1_init(unsigned nwires)
220 if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6) 257 if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
221 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R; 258 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R;
222 if (cpu_is_omap24xx()) 259 if (cpu_is_omap24xx())
223 CONTROL_DEVCONF_REG &= ~USBT1WRMODEI(USB_BIDIR_TLL); 260 omap2_usb_devconf_clear(1, USB_BIDIR_TLL);
224 261
225 if (nwires == 0) 262 if (nwires == 0)
226 return 0; 263 return 0;
@@ -261,17 +298,17 @@ static u32 __init omap_usb1_init(unsigned nwires)
261 * this TLL link is not using DP/DM 298 * this TLL link is not using DP/DM
262 */ 299 */
263 syscon1 = 1; 300 syscon1 = 1;
264 CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR_TLL); 301 omap2_usb_devconf_set(1, USB_BIDIR_TLL);
265 break; 302 break;
266 case 3: 303 case 3:
267 syscon1 = 2; 304 syscon1 = 2;
268 if (cpu_is_omap24xx()) 305 if (cpu_is_omap24xx())
269 CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR); 306 omap2_usb_devconf_set(1, USB_BIDIR);
270 break; 307 break;
271 case 4: 308 case 4:
272 syscon1 = 1; 309 syscon1 = 1;
273 if (cpu_is_omap24xx()) 310 if (cpu_is_omap24xx())
274 CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR); 311 omap2_usb_devconf_set(1, USB_BIDIR);
275 break; 312 break;
276 case 6: 313 case 6:
277 if (cpu_is_omap24xx()) 314 if (cpu_is_omap24xx())
@@ -295,8 +332,7 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
295 u32 syscon1 = 0; 332 u32 syscon1 = 0;
296 333
297 if (cpu_is_omap24xx()) { 334 if (cpu_is_omap24xx()) {
298 CONTROL_DEVCONF_REG &= ~(USBT2WRMODEI(USB_BIDIR_TLL) 335 omap2_usb2_disable_5pinbitll();
299 | USBT2TLL5PI);
300 alt_pingroup = 0; 336 alt_pingroup = 0;
301 } 337 }
302 338
@@ -343,17 +379,17 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
343 * this TLL link is not using DP/DM 379 * this TLL link is not using DP/DM
344 */ 380 */
345 syscon1 = 1; 381 syscon1 = 1;
346 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR_TLL); 382 omap2_usb_devconf_set(2, USB_BIDIR_TLL);
347 break; 383 break;
348 case 3: 384 case 3:
349 syscon1 = 2; 385 syscon1 = 2;
350 if (cpu_is_omap24xx()) 386 if (cpu_is_omap24xx())
351 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR); 387 omap2_usb_devconf_set(2, USB_BIDIR);
352 break; 388 break;
353 case 4: 389 case 4:
354 syscon1 = 1; 390 syscon1 = 1;
355 if (cpu_is_omap24xx()) 391 if (cpu_is_omap24xx())
356 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR); 392 omap2_usb_devconf_set(2, USB_BIDIR);
357 break; 393 break;
358 case 5: 394 case 5:
359 if (!cpu_is_omap24xx()) 395 if (!cpu_is_omap24xx())
@@ -364,8 +400,7 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
364 * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED} 400 * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
365 */ 401 */
366 syscon1 = 3; 402 syscon1 = 3;
367 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_UNIDIR_TLL) 403 omap2_usb2_enable_5pinunitll();
368 | USBT2TLL5PI;
369 break; 404 break;
370 case 6: 405 case 6:
371 if (cpu_is_omap24xx()) 406 if (cpu_is_omap24xx())