Root/target/linux/ar71xx/patches-3.3/002-USB-use-generic-platform-driver-on-ath79.patch

1From dbcbcdd001c5943adbb18db3b8f0dafc405559eb Mon Sep 17 00:00:00 2001
2From: Hauke Mehrtens <hauke@hauke-m.de>
3Date: Tue, 13 Mar 2012 01:04:53 +0100
4Subject: [PATCH 03/47] USB: use generic platform driver on ath79
5
6The ath79 usb driver doesn't do anything special and is now converted
7to the generic ehci and ohci driver.
8This was tested on a TP-Link TL-WR1043ND (AR9132)
9
10Acked-by: Gabor Juhos <juhosg@openwrt.org>
11CC: Imre Kaloz <kaloz@openwrt.org>
12CC: linux-mips@linux-mips.org
13CC: Ralf Baechle <ralf@linux-mips.org>
14Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
15Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16---
17 arch/mips/ath79/dev-usb.c | 31 +++++-
18 drivers/usb/host/Kconfig | 12 ++-
19 drivers/usb/host/ehci-ath79.c | 208 -----------------------------------------
20 drivers/usb/host/ehci-hcd.c | 5 -
21 drivers/usb/host/ohci-ath79.c | 151 -----------------------------
22 drivers/usb/host/ohci-hcd.c | 5 -
23 6 files changed, 35 insertions(+), 377 deletions(-)
24 delete mode 100644 drivers/usb/host/ehci-ath79.c
25 delete mode 100644 drivers/usb/host/ohci-ath79.c
26
27--- a/arch/mips/ath79/dev-usb.c
28+++ b/arch/mips/ath79/dev-usb.c
29@@ -17,6 +17,8 @@
30 #include <linux/irq.h>
31 #include <linux/dma-mapping.h>
32 #include <linux/platform_device.h>
33+#include <linux/usb/ehci_pdriver.h>
34+#include <linux/usb/ohci_pdriver.h>
35 
36 #include <asm/mach-ath79/ath79.h>
37 #include <asm/mach-ath79/ar71xx_regs.h>
38@@ -36,14 +38,19 @@ static struct resource ath79_ohci_resour
39 };
40 
41 static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32);
42+
43+static struct usb_ohci_pdata ath79_ohci_pdata = {
44+};
45+
46 static struct platform_device ath79_ohci_device = {
47- .name = "ath79-ohci",
48+ .name = "ohci-platform",
49     .id = -1,
50     .resource = ath79_ohci_resources,
51     .num_resources = ARRAY_SIZE(ath79_ohci_resources),
52     .dev = {
53         .dma_mask = &ath79_ohci_dmamask,
54         .coherent_dma_mask = DMA_BIT_MASK(32),
55+ .platform_data = &ath79_ohci_pdata,
56     },
57 };
58 
59@@ -60,8 +67,20 @@ static struct resource ath79_ehci_resour
60 };
61 
62 static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32);
63+
64+static struct usb_ehci_pdata ath79_ehci_pdata_v1 = {
65+ .has_synopsys_hc_bug = 1,
66+ .port_power_off = 1,
67+};
68+
69+static struct usb_ehci_pdata ath79_ehci_pdata_v2 = {
70+ .caps_offset = 0x100,
71+ .has_tt = 1,
72+ .port_power_off = 1,
73+};
74+
75 static struct platform_device ath79_ehci_device = {
76- .name = "ath79-ehci",
77+ .name = "ehci-platform",
78     .id = -1,
79     .resource = ath79_ehci_resources,
80     .num_resources = ARRAY_SIZE(ath79_ehci_resources),
81@@ -101,7 +120,7 @@ static void __init ath79_usb_setup(void)
82 
83     ath79_ehci_resources[0].start = AR71XX_EHCI_BASE;
84     ath79_ehci_resources[0].end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1;
85- ath79_ehci_device.name = "ar71xx-ehci";
86+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v1;
87     platform_device_register(&ath79_ehci_device);
88 }
89 
90@@ -142,7 +161,7 @@ static void __init ar724x_usb_setup(void
91 
92     ath79_ehci_resources[0].start = AR724X_EHCI_BASE;
93     ath79_ehci_resources[0].end = AR724X_EHCI_BASE + AR724X_EHCI_SIZE - 1;
94- ath79_ehci_device.name = "ar724x-ehci";
95+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
96     platform_device_register(&ath79_ehci_device);
97 }
98 
99@@ -159,7 +178,7 @@ static void __init ar913x_usb_setup(void
100 
101     ath79_ehci_resources[0].start = AR913X_EHCI_BASE;
102     ath79_ehci_resources[0].end = AR913X_EHCI_BASE + AR913X_EHCI_SIZE - 1;
103- ath79_ehci_device.name = "ar913x-ehci";
104+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
105     platform_device_register(&ath79_ehci_device);
106 }
107 
108@@ -176,7 +195,7 @@ static void __init ar933x_usb_setup(void
109 
110     ath79_ehci_resources[0].start = AR933X_EHCI_BASE;
111     ath79_ehci_resources[0].end = AR933X_EHCI_BASE + AR933X_EHCI_SIZE - 1;
112- ath79_ehci_device.name = "ar933x-ehci";
113+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
114     platform_device_register(&ath79_ehci_device);
115 }
116 
117--- a/drivers/usb/host/Kconfig
118+++ b/drivers/usb/host/Kconfig
119@@ -218,11 +218,15 @@ config USB_CNS3XXX_EHCI
120       support.
121 
122 config USB_EHCI_ATH79
123- bool "EHCI support for AR7XXX/AR9XXX SoCs"
124+ bool "EHCI support for AR7XXX/AR9XXX SoCs (DEPRECATED)"
125     depends on USB_EHCI_HCD && (SOC_AR71XX || SOC_AR724X || SOC_AR913X || SOC_AR933X)
126     select USB_EHCI_ROOT_HUB_TT
127+ select USB_EHCI_HCD_PLATFORM
128     default y
129     ---help---
130+ This option is deprecated now and the driver was removed, use
131+ USB_EHCI_HCD_PLATFORM instead.
132+
133       Enables support for the built-in EHCI controller present
134       on the Atheros AR7XXX/AR9XXX SoCs.
135 
136@@ -312,10 +316,14 @@ config USB_OHCI_HCD_OMAP3
137       OMAP3 and later chips.
138 
139 config USB_OHCI_ATH79
140- bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs"
141+ bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
142     depends on USB_OHCI_HCD && (SOC_AR71XX || SOC_AR724X)
143+ select USB_OHCI_HCD_PLATFORM
144     default y
145     help
146+ This option is deprecated now and the driver was removed, use
147+ USB_OHCI_HCD_PLATFORM instead.
148+
149       Enables support for the built-in OHCI controller present on the
150       Atheros AR71XX/AR7240 SoCs.
151 
152--- a/drivers/usb/host/ehci-ath79.c
153+++ /dev/null
154@@ -1,208 +0,0 @@
155-/*
156- * Bus Glue for Atheros AR7XXX/AR9XXX built-in EHCI controller.
157- *
158- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
159- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
160- *
161- * Parts of this file are based on Atheros' 2.6.15 BSP
162- * Copyright (C) 2007 Atheros Communications, Inc.
163- *
164- * This program is free software; you can redistribute it and/or modify it
165- * under the terms of the GNU General Public License version 2 as published
166- * by the Free Software Foundation.
167- */
168-
169-#include <linux/platform_device.h>
170-
171-enum {
172- EHCI_ATH79_IP_V1 = 0,
173- EHCI_ATH79_IP_V2,
174-};
175-
176-static const struct platform_device_id ehci_ath79_id_table[] = {
177- {
178- .name = "ar71xx-ehci",
179- .driver_data = EHCI_ATH79_IP_V1,
180- },
181- {
182- .name = "ar724x-ehci",
183- .driver_data = EHCI_ATH79_IP_V2,
184- },
185- {
186- .name = "ar913x-ehci",
187- .driver_data = EHCI_ATH79_IP_V2,
188- },
189- {
190- .name = "ar933x-ehci",
191- .driver_data = EHCI_ATH79_IP_V2,
192- },
193- {
194- /* terminating entry */
195- },
196-};
197-
198-MODULE_DEVICE_TABLE(platform, ehci_ath79_id_table);
199-
200-static int ehci_ath79_init(struct usb_hcd *hcd)
201-{
202- struct ehci_hcd *ehci = hcd_to_ehci(hcd);
203- struct platform_device *pdev = to_platform_device(hcd->self.controller);
204- const struct platform_device_id *id;
205- int ret;
206-
207- id = platform_get_device_id(pdev);
208- if (!id) {
209- dev_err(hcd->self.controller, "missing device id\n");
210- return -EINVAL;
211- }
212-
213- switch (id->driver_data) {
214- case EHCI_ATH79_IP_V1:
215- ehci->has_synopsys_hc_bug = 1;
216-
217- ehci->caps = hcd->regs;
218- ehci->regs = hcd->regs +
219- HC_LENGTH(ehci,
220- ehci_readl(ehci, &ehci->caps->hc_capbase));
221- break;
222-
223- case EHCI_ATH79_IP_V2:
224- hcd->has_tt = 1;
225-
226- ehci->caps = hcd->regs + 0x100;
227- ehci->regs = hcd->regs + 0x100 +
228- HC_LENGTH(ehci,
229- ehci_readl(ehci, &ehci->caps->hc_capbase));
230- break;
231-
232- default:
233- BUG();
234- }
235-
236- dbg_hcs_params(ehci, "reset");
237- dbg_hcc_params(ehci, "reset");
238- ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
239- ehci->sbrn = 0x20;
240-
241- ehci_reset(ehci);
242-
243- ret = ehci_init(hcd);
244- if (ret)
245- return ret;
246-
247- ehci_port_power(ehci, 0);
248-
249- return 0;
250-}
251-
252-static const struct hc_driver ehci_ath79_hc_driver = {
253- .description = hcd_name,
254- .product_desc = "Atheros built-in EHCI controller",
255- .hcd_priv_size = sizeof(struct ehci_hcd),
256- .irq = ehci_irq,
257- .flags = HCD_MEMORY | HCD_USB2,
258-
259- .reset = ehci_ath79_init,
260- .start = ehci_run,
261- .stop = ehci_stop,
262- .shutdown = ehci_shutdown,
263-
264- .urb_enqueue = ehci_urb_enqueue,
265- .urb_dequeue = ehci_urb_dequeue,
266- .endpoint_disable = ehci_endpoint_disable,
267- .endpoint_reset = ehci_endpoint_reset,
268-
269- .get_frame_number = ehci_get_frame,
270-
271- .hub_status_data = ehci_hub_status_data,
272- .hub_control = ehci_hub_control,
273-
274- .relinquish_port = ehci_relinquish_port,
275- .port_handed_over = ehci_port_handed_over,
276-
277- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
278-};
279-
280-static int ehci_ath79_probe(struct platform_device *pdev)
281-{
282- struct usb_hcd *hcd;
283- struct resource *res;
284- int irq;
285- int ret;
286-
287- if (usb_disabled())
288- return -ENODEV;
289-
290- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
291- if (!res) {
292- dev_dbg(&pdev->dev, "no IRQ specified\n");
293- return -ENODEV;
294- }
295- irq = res->start;
296-
297- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
298- if (!res) {
299- dev_dbg(&pdev->dev, "no base address specified\n");
300- return -ENODEV;
301- }
302-
303- hcd = usb_create_hcd(&ehci_ath79_hc_driver, &pdev->dev,
304- dev_name(&pdev->dev));
305- if (!hcd)
306- return -ENOMEM;
307-
308- hcd->rsrc_start = res->start;
309- hcd->rsrc_len = resource_size(res);
310-
311- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
312- dev_dbg(&pdev->dev, "controller already in use\n");
313- ret = -EBUSY;
314- goto err_put_hcd;
315- }
316-
317- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
318- if (!hcd->regs) {
319- dev_dbg(&pdev->dev, "error mapping memory\n");
320- ret = -EFAULT;
321- goto err_release_region;
322- }
323-
324- ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
325- if (ret)
326- goto err_iounmap;
327-
328- return 0;
329-
330-err_iounmap:
331- iounmap(hcd->regs);
332-
333-err_release_region:
334- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
335-err_put_hcd:
336- usb_put_hcd(hcd);
337- return ret;
338-}
339-
340-static int ehci_ath79_remove(struct platform_device *pdev)
341-{
342- struct usb_hcd *hcd = platform_get_drvdata(pdev);
343-
344- usb_remove_hcd(hcd);
345- iounmap(hcd->regs);
346- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
347- usb_put_hcd(hcd);
348-
349- return 0;
350-}
351-
352-static struct platform_driver ehci_ath79_driver = {
353- .probe = ehci_ath79_probe,
354- .remove = ehci_ath79_remove,
355- .id_table = ehci_ath79_id_table,
356- .driver = {
357- .owner = THIS_MODULE,
358- .name = "ath79-ehci",
359- }
360-};
361-
362-MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ath79-ehci");
363--- a/drivers/usb/host/ehci-hcd.c
364+++ b/drivers/usb/host/ehci-hcd.c
365@@ -1356,11 +1356,6 @@ MODULE_LICENSE ("GPL");
366 #define PLATFORM_DRIVER s5p_ehci_driver
367 #endif
368 
369-#ifdef CONFIG_USB_EHCI_ATH79
370-#include "ehci-ath79.c"
371-#define PLATFORM_DRIVER ehci_ath79_driver
372-#endif
373-
374 #ifdef CONFIG_SPARC_LEON
375 #include "ehci-grlib.c"
376 #define PLATFORM_DRIVER ehci_grlib_driver
377--- a/drivers/usb/host/ohci-ath79.c
378+++ /dev/null
379@@ -1,151 +0,0 @@
380-/*
381- * OHCI HCD (Host Controller Driver) for USB.
382- *
383- * Bus Glue for Atheros AR71XX/AR724X built-in OHCI controller.
384- *
385- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
386- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
387- *
388- * Parts of this file are based on Atheros' 2.6.15 BSP
389- * Copyright (C) 2007 Atheros Communications, Inc.
390- *
391- * This program is free software; you can redistribute it and/or modify it
392- * under the terms of the GNU General Public License version 2 as published
393- * by the Free Software Foundation.
394- */
395-
396-#include <linux/platform_device.h>
397-
398-static int __devinit ohci_ath79_start(struct usb_hcd *hcd)
399-{
400- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
401- int ret;
402-
403- ret = ohci_init(ohci);
404- if (ret < 0)
405- return ret;
406-
407- ret = ohci_run(ohci);
408- if (ret < 0)
409- goto err;
410-
411- return 0;
412-
413-err:
414- ohci_stop(hcd);
415- return ret;
416-}
417-
418-static const struct hc_driver ohci_ath79_hc_driver = {
419- .description = hcd_name,
420- .product_desc = "Atheros built-in OHCI controller",
421- .hcd_priv_size = sizeof(struct ohci_hcd),
422-
423- .irq = ohci_irq,
424- .flags = HCD_USB11 | HCD_MEMORY,
425-
426- .start = ohci_ath79_start,
427- .stop = ohci_stop,
428- .shutdown = ohci_shutdown,
429-
430- .urb_enqueue = ohci_urb_enqueue,
431- .urb_dequeue = ohci_urb_dequeue,
432- .endpoint_disable = ohci_endpoint_disable,
433-
434- /*
435- * scheduling support
436- */
437- .get_frame_number = ohci_get_frame,
438-
439- /*
440- * root hub support
441- */
442- .hub_status_data = ohci_hub_status_data,
443- .hub_control = ohci_hub_control,
444- .start_port_reset = ohci_start_port_reset,
445-};
446-
447-static int ohci_ath79_probe(struct platform_device *pdev)
448-{
449- struct usb_hcd *hcd;
450- struct resource *res;
451- int irq;
452- int ret;
453-
454- if (usb_disabled())
455- return -ENODEV;
456-
457- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
458- if (!res) {
459- dev_dbg(&pdev->dev, "no IRQ specified\n");
460- return -ENODEV;
461- }
462- irq = res->start;
463-
464- hcd = usb_create_hcd(&ohci_ath79_hc_driver, &pdev->dev,
465- dev_name(&pdev->dev));
466- if (!hcd)
467- return -ENOMEM;
468-
469- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
470- if (!res) {
471- dev_dbg(&pdev->dev, "no base address specified\n");
472- ret = -ENODEV;
473- goto err_put_hcd;
474- }
475- hcd->rsrc_start = res->start;
476- hcd->rsrc_len = resource_size(res);
477-
478- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
479- dev_dbg(&pdev->dev, "controller already in use\n");
480- ret = -EBUSY;
481- goto err_put_hcd;
482- }
483-
484- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
485- if (!hcd->regs) {
486- dev_dbg(&pdev->dev, "error mapping memory\n");
487- ret = -EFAULT;
488- goto err_release_region;
489- }
490-
491- ohci_hcd_init(hcd_to_ohci(hcd));
492-
493- ret = usb_add_hcd(hcd, irq, 0);
494- if (ret)
495- goto err_stop_hcd;
496-
497- return 0;
498-
499-err_stop_hcd:
500- iounmap(hcd->regs);
501-err_release_region:
502- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
503-err_put_hcd:
504- usb_put_hcd(hcd);
505- return ret;
506-}
507-
508-static int ohci_ath79_remove(struct platform_device *pdev)
509-{
510- struct usb_hcd *hcd = platform_get_drvdata(pdev);
511-
512- usb_remove_hcd(hcd);
513- iounmap(hcd->regs);
514- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
515- usb_put_hcd(hcd);
516-
517- return 0;
518-}
519-
520-static struct platform_driver ohci_hcd_ath79_driver = {
521- .probe = ohci_ath79_probe,
522- .remove = ohci_ath79_remove,
523- .shutdown = usb_hcd_platform_shutdown,
524- .driver = {
525- .name = "ath79-ohci",
526- .owner = THIS_MODULE,
527- },
528-};
529-
530-MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ath79-ohci");
531--- a/drivers/usb/host/ohci-hcd.c
532+++ b/drivers/usb/host/ohci-hcd.c
533@@ -1111,11 +1111,6 @@ MODULE_LICENSE ("GPL");
534 #define PLATFORM_DRIVER ohci_hcd_cns3xxx_driver
535 #endif
536 
537-#ifdef CONFIG_USB_OHCI_ATH79
538-#include "ohci-ath79.c"
539-#define PLATFORM_DRIVER ohci_hcd_ath79_driver
540-#endif
541-
542 #ifdef CONFIG_CPU_XLR
543 #include "ohci-xls.c"
544 #define PLATFORM_DRIVER ohci_xls_driver
545

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