aboutsummaryrefslogtreecommitdiffstats
path: root/packages/kexecboot/linux-kexecboot-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch
diff options
context:
space:
mode:
Diffstat (limited to 'packages/kexecboot/linux-kexecboot-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch')
-rw-r--r--packages/kexecboot/linux-kexecboot-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch431
1 files changed, 431 insertions, 0 deletions
diff --git a/packages/kexecboot/linux-kexecboot-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch b/packages/kexecboot/linux-kexecboot-2.6.24/tosa/0010-OHCI-driver-for-TMIO-devices.patch
new file mode 100644
index 0000000000..f358c069d0
--- /dev/null
+++ b/packages/kexecboot/linux-kexecboot-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
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-25 04:33:53 +0000