diff options
Diffstat (limited to 'packages/linux/linux-rp-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch')
-rw-r--r-- | packages/linux/linux-rp-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/packages/linux/linux-rp-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch b/packages/linux/linux-rp-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch new file mode 100644 index 0000000000..f358c069d0 --- /dev/null +++ b/packages/linux/linux-rp-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch @@ -0,0 +1,431 @@ +From e5f06830bc8d3ef4792c9c0569825d0347b39852 Mon Sep 17 00:00:00 2001 +From: Ian Molton <spyro@f2s.com> +Date: Fri, 4 Jan 2008 18:43:31 +0000 +Subject: [PATCH 10/64] OHCI driver for TMIO devices + +--- + drivers/usb/Kconfig | 1 + + drivers/usb/host/Kconfig | 1 + + drivers/usb/host/ohci-hcd.c | 5 + + drivers/usb/host/ohci-tmio.c | 369 ++++++++++++++++++++++++++++++++++++++++++ + 4 files changed, 376 insertions(+), 0 deletions(-) + create mode 100644 drivers/usb/host/ohci-tmio.c + +diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig +index 7580aa5..8912042 100644 +--- a/drivers/usb/Kconfig ++++ b/drivers/usb/Kconfig +@@ -36,6 +36,7 @@ config USB_ARCH_HAS_OHCI + default y if ARCH_EP93XX + default y if ARCH_AT91 + default y if ARCH_PNX4008 ++ default y if MFD_TC6393XB + # PPC: + default y if STB03xxx + default y if PPC_MPC52xx +diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig +index 49a91c5..5ae3589 100644 +--- a/drivers/usb/host/Kconfig ++++ b/drivers/usb/host/Kconfig +@@ -101,6 +101,7 @@ config USB_OHCI_HCD + depends on USB && USB_ARCH_HAS_OHCI + select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 + select I2C if ARCH_PNX4008 ++ select DMABOUNCE if MFD_TC6393XB + ---help--- + The Open Host Controller Interface (OHCI) is a standard for accessing + USB 1.1 host controller hardware. It does more in hardware than Intel's +diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c +index ecfe800..77abf3e 100644 +--- a/drivers/usb/host/ohci-hcd.c ++++ b/drivers/usb/host/ohci-hcd.c +@@ -1043,6 +1043,11 @@ MODULE_LICENSE ("GPL"); + #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver + #endif + ++#ifdef CONFIG_MFD_TC6393XB ++#include "ohci-tmio.c" ++#define PLATFORM_DRIVER ohci_hcd_tmio_driver ++#endif ++ + #ifdef CONFIG_USB_OHCI_HCD_SSB + #include "ohci-ssb.c" + #define SSB_OHCI_DRIVER ssb_ohci_driver +diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c +new file mode 100644 +index 0000000..be609f3 +--- /dev/null ++++ b/drivers/usb/host/ohci-tmio.c +@@ -0,0 +1,369 @@ ++/* ++ * OHCI HCD(Host Controller Driver) for USB. ++ * ++ *(C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> ++ *(C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> ++ *(C) Copyright 2002 Hewlett-Packard Company ++ * ++ * Bus glue for Toshiba Mobile IO(TMIO) Controller's OHCI core ++ *(C) Copyright 2005 Chris Humbert <mahadri-usb@drigon.com> ++ * ++ * This is known to work with the following variants: ++ * TC6393XB revision 3 (32kB SRAM) ++ * ++ * The TMIO's OHCI core DMAs through a small internal buffer that ++ * is directly addressable by the CPU. dma_declare_coherent_memory ++ * and DMA bounce buffers allow the higher-level OHCI host driver to ++ * work. However, the dma API doesn't handle dma mapping failures ++ * well(dma_sg_map() is a prime example), so it is unusable. ++ * ++ * This HC pretends be a PIO-ish controller and uses the kernel's ++ * generic allocator for the entire SRAM. Using the USB core's ++ * usb_operations, we provide hcd_buffer_alloc/free. Using the OHCI's ++ * ohci_ops, we provide memory management for OHCI's TDs and EDs. We ++ * internally queue a URB's TDs until enough dma memory is available ++ * to enqueue them with the HC. ++ * ++ * Written from sparse documentation from Toshiba and Sharp's driver ++ * for the 2.4 kernel, ++ * usb-ohci-tc6393.c(C) Copyright 2004 Lineo Solutions, Inc. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/*#include <linux/fs.h> ++#include <linux/mount.h> ++#include <linux/pagemap.h> ++#include <linux/init.h> ++#include <linux/namei.h> ++#include <linux/sched.h>*/ ++#include <linux/platform_device.h> ++#include <linux/mfd-core.h> ++#include <linux/mfd/tmio.h> ++#include <linux/dma-mapping.h> ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* ++ * USB Host Controller Configuration Register ++ */ ++struct tmio_uhccr { ++ u8 x00[8]; ++ u8 revid; /* 0x08 Revision ID */ ++ u8 x01[7]; ++ u16 basel; /* 0x10 USB Control Register Base Address Low */ ++ u16 baseh; /* 0x12 USB Control Register Base Address High */ ++ u8 x02[0x2c]; ++ u8 ilme; /* 0x40 Internal Local Memory Enable */ ++ u8 x03[0x0b]; ++ u16 pm; /* 0x4c Power Management */ ++ u8 x04[2]; ++ u8 intc; /* 0x50 INT Control */ ++ u8 x05[3]; ++ u16 lmw1l; /* 0x54 Local Memory Window 1 LMADRS Low */ ++ u16 lmw1h; /* 0x56 Local Memory Window 1 LMADRS High */ ++ u16 lmw1bl; /* 0x58 Local Memory Window 1 Base Address Low */ ++ u16 lmw1bh; /* 0x5A Local Memory Window 1 Base Address High */ ++ u16 lmw2l; /* 0x5C Local Memory Window 2 LMADRS Low */ ++ u16 lmw2h; /* 0x5E Local Memory Window 2 LMADRS High */ ++ u16 lmw2bl; /* 0x60 Local Memory Window 2 Base Address Low */ ++ u16 lmw2bh; /* 0x62 Local Memory Window 2 Base Address High */ ++ u8 x06[0x98]; ++ u8 misc; /* 0xFC MISC */ ++ u8 x07[3]; ++} __attribute__((packed)); ++ ++#define UHCCR_PM_GKEN 0x0001 ++#define UHCCR_PM_CKRNEN 0x0002 ++#define UHCCR_PM_USBPW1 0x0004 ++#define UHCCR_PM_USBPW2 0x0008 ++#define UHCCR_PM_PMEE 0x0100 ++#define UHCCR_PM_PMES 0x8000 ++ ++/*-------------------------------------------------------------------------*/ ++ ++struct tmio_hcd { ++ struct tmio_uhccr __iomem *ccr; ++}; ++ ++#define hcd_to_tmio(hcd) ((struct tmio_hcd *)(hcd_to_ohci(hcd) + 1)) ++#define ohci_to_tmio(ohci) ((struct tmio_hcd *)(ohci + 1)) ++ ++/*-------------------------------------------------------------------------*/ ++ ++static void tmio_stop_hc(struct platform_device *dev) ++{ ++ struct mfd_cell *cell = mfd_get_cell(dev); ++ struct usb_hcd *hcd = platform_get_drvdata(dev); ++ struct tmio_hcd *tmio = hcd_to_tmio(hcd); ++ struct tmio_uhccr __iomem *ccr = tmio->ccr; ++ u16 pm; ++ ++ pm = UHCCR_PM_GKEN | UHCCR_PM_CKRNEN | UHCCR_PM_USBPW1 | UHCCR_PM_USBPW2; ++ iowrite8(0, &ccr->intc); ++ iowrite8(0, &ccr->ilme); ++ iowrite16(0, &ccr->basel); ++ iowrite16(0, &ccr->baseh); ++ iowrite16(pm, &ccr->pm); ++ ++ cell->disable(dev); ++} ++ ++static void tmio_start_hc(struct platform_device *dev) ++{ ++ struct mfd_cell *cell = mfd_get_cell(dev); ++ struct usb_hcd *hcd = platform_get_drvdata(dev); ++ struct tmio_hcd *tmio = hcd_to_tmio(hcd); ++ struct tmio_uhccr __iomem *ccr = tmio->ccr; ++ u16 pm; ++ unsigned long base = hcd->rsrc_start; ++ ++ pm = UHCCR_PM_CKRNEN | UHCCR_PM_GKEN | UHCCR_PM_PMEE | UHCCR_PM_PMES; ++ cell->enable(dev); ++ ++ iowrite16(pm, &ccr->pm); ++ iowrite16(base, &ccr->basel); ++ iowrite16(base >> 16, &ccr->baseh); ++ iowrite8(1, &ccr->ilme); ++ iowrite8(2, &ccr->intc); ++ ++ dev_info(&dev->dev, "revision %d @ 0x%08llx, irq %d\n", ++ ioread8(&ccr->revid), hcd->rsrc_start, hcd->irq); ++} ++ ++static int usb_hcd_tmio_probe(const struct hc_driver *driver, ++ struct platform_device *dev) ++{ ++ struct resource *config = platform_get_resource_byname(dev, IORESOURCE_MEM, TMIO_OHCI_CONFIG); ++ struct resource *regs = platform_get_resource_byname(dev, IORESOURCE_MEM, TMIO_OHCI_CONTROL); ++ struct resource *sram = platform_get_resource_byname(dev, IORESOURCE_MEM, TMIO_OHCI_SRAM); ++ int irq = platform_get_irq(dev, 0); ++ struct tmio_hcd *tmio; ++ struct ohci_hcd *ohci; ++ struct usb_hcd *hcd; ++ int retval; ++ ++ if (usb_disabled()) ++ return -ENODEV; ++ ++ hcd = usb_create_hcd(driver, &dev->dev, dev->dev.bus_id); ++ if (!hcd) { ++ retval = -ENOMEM; ++ goto err_usb_create_hcd; ++ } ++ ++ hcd->rsrc_start = regs->start; ++ hcd->rsrc_len = regs->end - regs->start + 1; ++ ++ tmio = hcd_to_tmio(hcd); ++ ++ tmio->ccr = ioremap(config->start, config->end - config->start + 1); ++ if (!tmio->ccr) { ++ retval = -ENOMEM; ++ goto err_ioremap_ccr; ++ } ++ ++ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); ++ if (!hcd->regs) { ++ retval = -ENOMEM; ++ goto err_ioremap_regs; ++ } ++ ++ if (dma_declare_coherent_memory(&dev->dev, sram->start, ++ sram->start, ++ sram->end - sram->start + 1, ++ DMA_MEMORY_MAP) != DMA_MEMORY_MAP) { ++ retval = -EBUSY; ++ goto err_dma_declare; ++ } ++ ++ retval = dmabounce_register_dev(&dev->dev, 512, 4096); ++ if (retval) ++ goto err_dmabounce_register_dev; ++ ++ tmio_start_hc(dev); ++ ohci = hcd_to_ohci(hcd); ++ ohci_hcd_init(ohci); ++ ++ retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); ++ ++ if (retval == 0) ++ return retval; ++ ++ tmio_stop_hc(dev); ++ ++ dmabounce_unregister_dev(&dev->dev); ++err_dmabounce_register_dev: ++ dma_release_declared_memory(&dev->dev); ++err_dma_declare: ++ iounmap(hcd->regs); ++err_ioremap_regs: ++ iounmap(tmio->ccr); ++err_ioremap_ccr: ++ usb_put_hcd(hcd); ++err_usb_create_hcd: ++ ++ return retval; ++} ++ ++static void usb_hcd_tmio_remove(struct usb_hcd *hcd, struct platform_device *dev) ++{ ++ struct tmio_hcd *tmio = hcd_to_tmio(hcd); ++ ++ usb_remove_hcd(hcd); ++ tmio_stop_hc(dev); ++ dmabounce_unregister_dev(&dev->dev); ++ dma_release_declared_memory(&dev->dev); ++ iounmap(hcd->regs); ++ iounmap(tmio->ccr); ++ usb_put_hcd(hcd); ++} ++ ++static int __devinit ++ohci_tmio_start(struct usb_hcd *hcd) ++{ ++ struct ohci_hcd *ohci = hcd_to_ohci(hcd); ++ int retval; ++ ++ if ((retval = ohci_init(ohci)) < 0) ++ return retval; ++ ++ if ((retval = ohci_run(ohci)) < 0) { ++ err("can't start %s", hcd->self.bus_name); ++ ohci_stop(hcd); ++ return retval; ++ } ++ ++ return 0; ++} ++ ++static const struct hc_driver ohci_tmio_hc_driver = { ++ .description = hcd_name, ++ .product_desc = "TMIO OHCI USB Host Controller", ++ .hcd_priv_size = sizeof(struct ohci_hcd) + sizeof (struct tmio_hcd), ++ ++ /* generic hardware linkage */ ++ .irq = ohci_irq, ++ .flags = HCD_USB11 | HCD_MEMORY, ++ ++ /* basic lifecycle operations */ ++ .start = ohci_tmio_start, ++ .stop = ohci_stop, ++ .shutdown = ohci_shutdown, ++ ++ /* managing i/o requests and associated device resources */ ++ .urb_enqueue = ohci_urb_enqueue, ++ .urb_dequeue = ohci_urb_dequeue, ++ .endpoint_disable = ohci_endpoint_disable, ++ ++ /* scheduling support */ ++ .get_frame_number = ohci_get_frame, ++ ++ /* root hub support */ ++ .hub_status_data = ohci_hub_status_data, ++ .hub_control = ohci_hub_control, ++ .hub_irq_enable = ohci_rhsc_enable, ++#ifdef CONFIG_PM ++ .bus_suspend = ohci_bus_suspend, ++ .bus_resume = ohci_bus_resume, ++#endif ++ .start_port_reset = ohci_start_port_reset, ++}; ++ ++/*-------------------------------------------------------------------------*/ ++static struct platform_driver ohci_hcd_tmio_driver; ++ ++static int ++tmio_dmabounce_check(struct device *dev, dma_addr_t dma, size_t size, void *data) ++{ ++ struct resource *sram = data; ++#ifdef DEBUG ++ printk(KERN_ERR "tmio_dmabounce_check: %08x %d\n", dma, size); ++#endif ++ ++ if (dev->driver != &ohci_hcd_tmio_driver.driver) ++ return 0; ++ ++ if (sram->start <= dma && dma + size <= sram->end) ++ return 0; ++ ++ return 1; ++} ++ ++static u64 dma_mask = DMA_32BIT_MASK; ++ ++static int ohci_hcd_tmio_drv_probe(struct platform_device *dev) ++{ ++ struct resource *sram = platform_get_resource_byname(dev, IORESOURCE_MEM, TMIO_OHCI_SRAM); ++ ++ dev->dev.dma_mask = &dma_mask; ++ dev->dev.coherent_dma_mask = DMA_32BIT_MASK; ++ ++ dmabounce_register_checker(tmio_dmabounce_check, sram); ++ ++ return usb_hcd_tmio_probe(&ohci_tmio_hc_driver, dev); ++} ++ ++static int ohci_hcd_tmio_drv_remove(struct platform_device *dev) ++{ ++ struct usb_hcd *hcd = platform_get_drvdata(dev); ++ struct resource *sram = platform_get_resource_byname(dev, IORESOURCE_MEM, TMIO_OHCI_SRAM); ++ ++ usb_hcd_tmio_remove(hcd, dev); ++ ++ platform_set_drvdata(dev, NULL); ++ ++ dmabounce_remove_checker(tmio_dmabounce_check, sram); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t state) ++{ ++ struct usb_hcd *hcd = platform_get_drvdata(dev); ++ struct ohci_hcd *ohci = hcd_to_ohci(hcd); ++ ++ if (time_before(jiffies, ohci->next_statechange)) ++ msleep(5); ++ ohci->next_statechange = jiffies; ++ ++ tmio_stop_hc(dev); ++ hcd->state = HC_STATE_SUSPENDED; ++ dev->dev.power.power_state = PMSG_SUSPEND; ++ ++ return 0; ++} ++ ++static int ohci_hcd_tmio_drv_resume(struct platform_device *dev) ++{ ++ struct usb_hcd *hcd = platform_get_drvdata(dev); ++ struct ohci_hcd *ohci = hcd_to_ohci(hcd); ++ ++ if (time_before(jiffies, ohci->next_statechange)) ++ msleep(5); ++ ohci->next_statechange = jiffies; ++ ++ tmio_start_hc(dev); ++ ++ dev->dev.power.power_state = PMSG_ON; ++ usb_hcd_resume_root_hub(hcd); ++ ++ return 0; ++} ++#endif ++ ++static struct platform_driver ohci_hcd_tmio_driver = { ++ .probe = ohci_hcd_tmio_drv_probe, ++ .remove = ohci_hcd_tmio_drv_remove, ++ .shutdown = usb_hcd_platform_shutdown, ++#ifdef CONFIG_PM ++ .suspend = ohci_hcd_tmio_drv_suspend, ++ .resume = ohci_hcd_tmio_drv_resume, ++#endif ++ .driver = { ++ .name = "tmio-ohci", ++ }, ++}; +-- +1.5.3.8 + |