forked from Minki/linux
USB: build fixes: ohci-omap
The ohci-omap code has diverged from the working version in the linux-omap tree; this syncs up the versions: - Another clock is needed in various cases - The omap-1510 iommu code needs to be #ifdeffed out on newer parts - Saner use of the HCD framework - Various other changes, e.g. a Nokia 770 quirk And some minor dead-whitespace removal. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell
Greg Kroah-Hartman
parent
eb6d8c2d14
commit
bd35078f47
@ -4,7 +4,7 @@
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* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
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* (C) Copyright 2000-2005 David Brownell
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* (C) Copyright 2002 Hewlett-Packard Company
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*
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*
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* OMAP Bus Glue
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*
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* Modified for OMAP by Tony Lindgren <tony@atomide.com>
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@ -66,15 +66,20 @@ extern int usb_disabled(void);
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extern int ocpi_enable(void);
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static struct clk *usb_host_ck;
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static struct clk *usb_dc_ck;
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static int host_enabled;
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static int host_initialized;
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static void omap_ohci_clock_power(int on)
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{
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if (on) {
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clk_enable(usb_dc_ck);
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clk_enable(usb_host_ck);
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/* guesstimate for T5 == 1x 32K clock + APLL lock time */
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udelay(100);
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} else {
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clk_disable(usb_host_ck);
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clk_disable(usb_dc_ck);
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}
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}
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@ -87,14 +92,14 @@ static int omap_ohci_transceiver_power(int on)
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if (on) {
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if (machine_is_omap_innovator() && cpu_is_omap1510())
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fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL)
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| ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
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| ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
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INNOVATOR_FPGA_CAM_USB_CONTROL);
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else if (machine_is_omap_osk())
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tps65010_set_gpio_out_value(GPIO1, LOW);
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} else {
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if (machine_is_omap_innovator() && cpu_is_omap1510())
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fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL)
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& ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
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& ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
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INNOVATOR_FPGA_CAM_USB_CONTROL);
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else if (machine_is_omap_osk())
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tps65010_set_gpio_out_value(GPIO1, HIGH);
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@ -103,6 +108,7 @@ static int omap_ohci_transceiver_power(int on)
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return 0;
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}
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#ifdef CONFIG_ARCH_OMAP15XX
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/*
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* OMAP-1510 specific Local Bus clock on/off
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*/
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@ -121,8 +127,8 @@ static int omap_1510_local_bus_power(int on)
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/*
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* OMAP-1510 specific Local Bus initialization
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* NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE.
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* See also arch/mach-omap/memory.h for __virt_to_dma() and
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* __dma_to_virt() which need to match with the physical
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* See also arch/mach-omap/memory.h for __virt_to_dma() and
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* __dma_to_virt() which need to match with the physical
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* Local Bus address below.
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*/
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static int omap_1510_local_bus_init(void)
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@ -130,7 +136,7 @@ static int omap_1510_local_bus_init(void)
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unsigned int tlb;
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unsigned long lbaddr, physaddr;
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omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4,
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omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4,
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OMAP1510_LB_CLOCK_DIV);
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/* Configure the Local Bus MMU table */
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@ -138,7 +144,7 @@ static int omap_1510_local_bus_init(void)
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lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET;
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physaddr = tlb * 0x00100000 + PHYS_OFFSET;
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omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H);
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omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc,
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omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc,
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OMAP1510_LB_MMU_CAM_L);
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omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H);
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omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L);
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@ -152,6 +158,10 @@ static int omap_1510_local_bus_init(void)
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return 0;
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}
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#else
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#define omap_1510_local_bus_power(x) {}
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#define omap_1510_local_bus_init() {}
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#endif
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#ifdef CONFIG_USB_OTG
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@ -173,13 +183,14 @@ static void start_hnp(struct ohci_hcd *ohci)
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/*-------------------------------------------------------------------------*/
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static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev)
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static int ohci_omap_init(struct usb_hcd *hcd)
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{
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struct omap_usb_config *config = pdev->dev.platform_data;
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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struct omap_usb_config *config = hcd->self.controller->platform_data;
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int need_transceiver = (config->otg != 0);
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int ret;
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dev_dbg(&pdev->dev, "starting USB Controller\n");
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dev_dbg(hcd->self.controller, "starting USB Controller\n");
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if (config->otg) {
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ohci_to_hcd(ohci)->self.otg_port = config->otg;
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@ -200,7 +211,7 @@ static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev)
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if (ohci->transceiver) {
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int status = otg_set_host(ohci->transceiver,
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&ohci_to_hcd(ohci)->self);
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dev_dbg(&pdev->dev, "init %s transceiver, status %d\n",
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dev_dbg(hcd->self.controller, "init %s transceiver, status %d\n",
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ohci->transceiver->label, status);
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if (status) {
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if (ohci->transceiver)
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@ -208,7 +219,7 @@ static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev)
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return status;
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}
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} else {
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dev_err(&pdev->dev, "can't find transceiver\n");
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dev_err(hcd->self.controller, "can't find transceiver\n");
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return -ENODEV;
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}
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}
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@ -247,6 +258,10 @@ static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev)
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}
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ohci_writel(ohci, rh, &ohci->regs->roothub.a);
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distrust_firmware = 0;
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} else if (machine_is_nokia770()) {
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/* We require a self-powered hub, which should have
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* plenty of power. */
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ohci_to_hcd(ohci)->power_budget = 0;
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}
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/* FIXME khubd hub requests should manage power switching */
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@ -260,21 +275,15 @@ static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev)
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return 0;
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}
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static void omap_stop_hc(struct platform_device *pdev)
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static void ohci_omap_stop(struct usb_hcd *hcd)
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{
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dev_dbg(&pdev->dev, "stopping USB Controller\n");
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dev_dbg(hcd->self.controller, "stopping USB Controller\n");
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omap_ohci_clock_power(0);
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}
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/*-------------------------------------------------------------------------*/
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void usb_hcd_omap_remove (struct usb_hcd *, struct platform_device *);
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/* configure so an HC device and id are always provided */
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/* always called with process context; sleeping is OK */
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/**
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* usb_hcd_omap_probe - initialize OMAP-based HCDs
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* Context: !in_interrupt()
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@ -283,7 +292,7 @@ void usb_hcd_omap_remove (struct usb_hcd *, struct platform_device *);
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* then invokes the start() method for the HCD associated with it
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* through the hotplug entry's driver_data.
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*/
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int usb_hcd_omap_probe (const struct hc_driver *driver,
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static int usb_hcd_omap_probe (const struct hc_driver *driver,
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struct platform_device *pdev)
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{
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int retval, irq;
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@ -291,12 +300,12 @@ int usb_hcd_omap_probe (const struct hc_driver *driver,
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struct ohci_hcd *ohci;
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if (pdev->num_resources != 2) {
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printk(KERN_ERR "hcd probe: invalid num_resources: %i\n",
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printk(KERN_ERR "hcd probe: invalid num_resources: %i\n",
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pdev->num_resources);
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return -ENODEV;
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}
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if (pdev->resource[0].flags != IORESOURCE_MEM
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if (pdev->resource[0].flags != IORESOURCE_MEM
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|| pdev->resource[1].flags != IORESOURCE_IRQ) {
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printk(KERN_ERR "hcd probe: invalid resource type\n");
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return -ENODEV;
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@ -306,6 +315,17 @@ int usb_hcd_omap_probe (const struct hc_driver *driver,
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if (IS_ERR(usb_host_ck))
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return PTR_ERR(usb_host_ck);
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if (!cpu_is_omap1510())
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usb_dc_ck = clk_get(0, "usb_dc_ck");
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else
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usb_dc_ck = clk_get(0, "lb_ck");
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if (IS_ERR(usb_dc_ck)) {
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clk_put(usb_host_ck);
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return PTR_ERR(usb_dc_ck);
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}
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hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id);
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if (!hcd) {
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retval = -ENOMEM;
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@ -325,9 +345,8 @@ int usb_hcd_omap_probe (const struct hc_driver *driver,
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ohci = hcd_to_ohci(hcd);
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ohci_hcd_init(ohci);
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retval = omap_start_hc(ohci, pdev);
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if (retval < 0)
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goto err2;
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host_initialized = 0;
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host_enabled = 1;
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irq = platform_get_irq(pdev, 0);
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if (irq < 0) {
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@ -335,15 +354,21 @@ int usb_hcd_omap_probe (const struct hc_driver *driver,
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goto err2;
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}
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retval = usb_add_hcd(hcd, irq, IRQF_DISABLED);
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if (retval == 0)
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return retval;
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if (retval)
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goto err2;
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omap_stop_hc(pdev);
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host_initialized = 1;
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if (!host_enabled)
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omap_ohci_clock_power(0);
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return 0;
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err2:
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release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
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err1:
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usb_put_hcd(hcd);
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err0:
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clk_put(usb_dc_ck);
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clk_put(usb_host_ck);
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return retval;
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}
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@ -359,28 +384,36 @@ err0:
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* Reverses the effect of usb_hcd_omap_probe(), first invoking
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* the HCD's stop() method. It is always called from a thread
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* context, normally "rmmod", "apmd", or something similar.
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*
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*/
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void usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
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static inline void
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usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
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{
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struct ohci_hcd *ohci = hcd_to_ohci (hcd);
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usb_remove_hcd(hcd);
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if (ohci->transceiver) {
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(void) otg_set_host(ohci->transceiver, 0);
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put_device(ohci->transceiver->dev);
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}
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if (machine_is_omap_osk())
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omap_free_gpio(9);
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omap_stop_hc(pdev);
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release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
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usb_put_hcd(hcd);
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clk_put(usb_dc_ck);
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clk_put(usb_host_ck);
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}
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/*-------------------------------------------------------------------------*/
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static int __devinit
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static int
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ohci_omap_start (struct usb_hcd *hcd)
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{
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struct omap_usb_config *config;
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struct ohci_hcd *ohci = hcd_to_ohci (hcd);
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int ret;
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if (!host_enabled)
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return 0;
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config = hcd->self.controller->platform_data;
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if (config->otg || config->rwc) {
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ohci->hc_control = OHCI_CTRL_RWC;
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@ -411,8 +444,9 @@ static const struct hc_driver ohci_omap_hc_driver = {
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/*
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* basic lifecycle operations
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*/
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.reset = ohci_omap_init,
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.start = ohci_omap_start,
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.stop = ohci_stop,
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.stop = ohci_omap_stop,
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/*
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* managing i/o requests and associated device resources
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@ -449,13 +483,8 @@ static int ohci_hcd_omap_drv_probe(struct platform_device *dev)
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static int ohci_hcd_omap_drv_remove(struct platform_device *dev)
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{
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struct usb_hcd *hcd = platform_get_drvdata(dev);
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struct ohci_hcd *ohci = hcd_to_ohci (hcd);
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usb_hcd_omap_remove(hcd, dev);
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if (ohci->transceiver) {
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(void) otg_set_host(ohci->transceiver, 0);
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put_device(ohci->transceiver->dev);
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}
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platform_set_drvdata(dev, NULL);
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return 0;
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@ -475,7 +504,7 @@ static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message)
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omap_ohci_clock_power(0);
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ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
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dev->power.power_state = PMSG_SUSPEND;
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dev->dev.power.power_state = PMSG_SUSPEND;
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return 0;
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}
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@ -488,8 +517,8 @@ static int ohci_omap_resume(struct platform_device *dev)
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ohci->next_statechange = jiffies;
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omap_ohci_clock_power(1);
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dev->power.power_state = PMSG_ON;
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usb_hcd_resume_root_hub(dev_get_drvdata(dev));
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dev->dev.power.power_state = PMSG_ON;
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usb_hcd_resume_root_hub(platform_get_drvdata(dev));
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return 0;
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}
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