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authorRoland Stigge <stigge@antcom.de>2012-03-12 21:54:49 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-13 21:27:27 (GMT)
commit32abd56a507e60e374dc7bb4912258225f9cf530 (patch)
tree523b0d7d009a0d48b4a980b5abf8073c8dddbf13 /drivers/usb/host/ohci-pnx4008.c
parentb55dd320f32c4cc31279d86ce0afb335c690b1fb (diff)
downloadlinux-32abd56a507e60e374dc7bb4912258225f9cf530.tar.xz
USB: OHCI-HCD: Rename ohci-pnx4008 to ohci-nxp
Since this driver is compatible with several NXP devices, the driver is renamed accordingly. Please combine with the following patch which also changes the respective symbol names. Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ohci-pnx4008.c')
-rw-r--r--drivers/usb/host/ohci-pnx4008.c453
1 files changed, 0 insertions, 453 deletions
diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c
deleted file mode 100644
index 0013db7..0000000
--- a/drivers/usb/host/ohci-pnx4008.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/*
- * drivers/usb/host/ohci-pnx4008.c
- *
- * driver for Philips PNX4008 USB Host
- *
- * Authors: Dmitry Chigirev <source@mvista.com>
- * Vitaly Wool <vitalywool@gmail.com>
- *
- * register initialization is based on code examples provided by Philips
- * Copyright (c) 2005 Koninklijke Philips Electronics N.V.
- *
- * NOTE: This driver does not have suspend/resume functionality
- * This driver is intended for engineering development purposes only
- *
- * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-
-#include <mach/hardware.h>
-#include <asm/io.h>
-
-#include <mach/platform.h>
-#include <mach/irqs.h>
-#include <asm/gpio.h>
-
-#define USB_CTRL IO_ADDRESS(PNX4008_PWRMAN_BASE + 0x64)
-
-/* USB_CTRL bit defines */
-#define USB_SLAVE_HCLK_EN (1 << 24)
-#define USB_HOST_NEED_CLK_EN (1 << 21)
-
-#define USB_OTG_CLK_CTRL IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0xFF4)
-#define USB_OTG_CLK_STAT IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0xFF8)
-
-/* USB_OTG_CLK_CTRL bit defines */
-#define AHB_M_CLOCK_ON (1 << 4)
-#define OTG_CLOCK_ON (1 << 3)
-#define I2C_CLOCK_ON (1 << 2)
-#define DEV_CLOCK_ON (1 << 1)
-#define HOST_CLOCK_ON (1 << 0)
-
-#define USB_OTG_STAT_CONTROL IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0x110)
-
-/* USB_OTG_STAT_CONTROL bit defines */
-#define TRANSPARENT_I2C_EN (1 << 7)
-#define HOST_EN (1 << 0)
-
-/* ISP1301 USB transceiver I2C registers */
-#define ISP1301_MODE_CONTROL_1 0x04 /* u8 read, set, +1 clear */
-
-#define MC1_SPEED_REG (1 << 0)
-#define MC1_SUSPEND_REG (1 << 1)
-#define MC1_DAT_SE0 (1 << 2)
-#define MC1_TRANSPARENT (1 << 3)
-#define MC1_BDIS_ACON_EN (1 << 4)
-#define MC1_OE_INT_EN (1 << 5)
-#define MC1_UART_EN (1 << 6)
-#define MC1_MASK 0x7f
-
-#define ISP1301_MODE_CONTROL_2 0x12 /* u8 read, set, +1 clear */
-
-#define MC2_GLOBAL_PWR_DN (1 << 0)
-#define MC2_SPD_SUSP_CTRL (1 << 1)
-#define MC2_BI_DI (1 << 2)
-#define MC2_TRANSP_BDIR0 (1 << 3)
-#define MC2_TRANSP_BDIR1 (1 << 4)
-#define MC2_AUDIO_EN (1 << 5)
-#define MC2_PSW_EN (1 << 6)
-#define MC2_EN2V7 (1 << 7)
-
-#define ISP1301_OTG_CONTROL_1 0x06 /* u8 read, set, +1 clear */
-# define OTG1_DP_PULLUP (1 << 0)
-# define OTG1_DM_PULLUP (1 << 1)
-# define OTG1_DP_PULLDOWN (1 << 2)
-# define OTG1_DM_PULLDOWN (1 << 3)
-# define OTG1_ID_PULLDOWN (1 << 4)
-# define OTG1_VBUS_DRV (1 << 5)
-# define OTG1_VBUS_DISCHRG (1 << 6)
-# define OTG1_VBUS_CHRG (1 << 7)
-#define ISP1301_OTG_STATUS 0x10 /* u8 readonly */
-# define OTG_B_SESS_END (1 << 6)
-# define OTG_B_SESS_VLD (1 << 7)
-
-#define ISP1301_I2C_ADDR 0x2C
-
-#define ISP1301_I2C_MODE_CONTROL_1 0x4
-#define ISP1301_I2C_MODE_CONTROL_2 0x12
-#define ISP1301_I2C_OTG_CONTROL_1 0x6
-#define ISP1301_I2C_OTG_CONTROL_2 0x10
-#define ISP1301_I2C_INTERRUPT_SOURCE 0x8
-#define ISP1301_I2C_INTERRUPT_LATCH 0xA
-#define ISP1301_I2C_INTERRUPT_FALLING 0xC
-#define ISP1301_I2C_INTERRUPT_RISING 0xE
-#define ISP1301_I2C_REG_CLEAR_ADDR 1
-
-static struct i2c_driver isp1301_driver;
-static struct i2c_client *isp1301_i2c_client;
-
-extern int usb_disabled(void);
-extern int ocpi_enable(void);
-
-static struct clk *usb_clk;
-
-static const unsigned short normal_i2c[] =
- { ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END };
-
-static int isp1301_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- return 0;
-}
-
-static int isp1301_remove(struct i2c_client *client)
-{
- return 0;
-}
-
-static const struct i2c_device_id isp1301_id[] = {
- { "isp1301_pnx", 0 },
- { }
-};
-
-static struct i2c_driver isp1301_driver = {
- .driver = {
- .name = "isp1301_pnx",
- },
- .probe = isp1301_probe,
- .remove = isp1301_remove,
- .id_table = isp1301_id,
-};
-
-static void i2c_write(u8 buf, u8 subaddr)
-{
- char tmpbuf[2];
-
- tmpbuf[0] = subaddr; /*register number */
- tmpbuf[1] = buf; /*register data */
- i2c_master_send(isp1301_i2c_client, &tmpbuf[0], 2);
-}
-
-static void isp1301_configure(void)
-{
- /* PNX4008 only supports DAT_SE0 USB mode */
- /* PNX4008 R2A requires setting the MAX603 to output 3.6V */
- /* Power up externel charge-pump */
-
- i2c_write(MC1_DAT_SE0 | MC1_SPEED_REG, ISP1301_I2C_MODE_CONTROL_1);
- i2c_write(~(MC1_DAT_SE0 | MC1_SPEED_REG),
- ISP1301_I2C_MODE_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR);
- i2c_write(MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL,
- ISP1301_I2C_MODE_CONTROL_2);
- i2c_write(~(MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL),
- ISP1301_I2C_MODE_CONTROL_2 | ISP1301_I2C_REG_CLEAR_ADDR);
- i2c_write(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN,
- ISP1301_I2C_OTG_CONTROL_1);
- i2c_write(~(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN),
- ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR);
- i2c_write(0xFF,
- ISP1301_I2C_INTERRUPT_LATCH | ISP1301_I2C_REG_CLEAR_ADDR);
- i2c_write(0xFF,
- ISP1301_I2C_INTERRUPT_FALLING | ISP1301_I2C_REG_CLEAR_ADDR);
- i2c_write(0xFF,
- ISP1301_I2C_INTERRUPT_RISING | ISP1301_I2C_REG_CLEAR_ADDR);
-
-}
-
-static inline void isp1301_vbus_on(void)
-{
- i2c_write(OTG1_VBUS_DRV, ISP1301_I2C_OTG_CONTROL_1);
-}
-
-static inline void isp1301_vbus_off(void)
-{
- i2c_write(OTG1_VBUS_DRV,
- ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR);
-}
-
-static void pnx4008_start_hc(void)
-{
- unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN;
- __raw_writel(tmp, USB_OTG_STAT_CONTROL);
- isp1301_vbus_on();
-}
-
-static void pnx4008_stop_hc(void)
-{
- unsigned long tmp;
- isp1301_vbus_off();
- tmp = __raw_readl(USB_OTG_STAT_CONTROL) & ~HOST_EN;
- __raw_writel(tmp, USB_OTG_STAT_CONTROL);
-}
-
-static int __devinit ohci_pnx4008_start(struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
- int ret;
-
- if ((ret = ohci_init(ohci)) < 0)
- return ret;
-
- if ((ret = ohci_run(ohci)) < 0) {
- dev_err(hcd->self.controller, "can't start\n");
- ohci_stop(hcd);
- return ret;
- }
- return 0;
-}
-
-static const struct hc_driver ohci_pnx4008_hc_driver = {
- .description = hcd_name,
- .product_desc = "pnx4008 OHCI",
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_USB11 | HCD_MEMORY,
-
- .hcd_priv_size = sizeof(struct ohci_hcd),
- /*
- * basic lifecycle operations
- */
- .start = ohci_pnx4008_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,
-#ifdef CONFIG_PM
- .bus_suspend = ohci_bus_suspend,
- .bus_resume = ohci_bus_resume,
-#endif
- .start_port_reset = ohci_start_port_reset,
-};
-
-#define USB_CLOCK_MASK (AHB_M_CLOCK_ON| OTG_CLOCK_ON | HOST_CLOCK_ON | I2C_CLOCK_ON)
-
-static void pnx4008_set_usb_bits(void)
-{
- start_int_set_falling_edge(SE_USB_OTG_ATX_INT_N);
- start_int_ack(SE_USB_OTG_ATX_INT_N);
- start_int_umask(SE_USB_OTG_ATX_INT_N);
-
- start_int_set_rising_edge(SE_USB_OTG_TIMER_INT);
- start_int_ack(SE_USB_OTG_TIMER_INT);
- start_int_umask(SE_USB_OTG_TIMER_INT);
-
- start_int_set_rising_edge(SE_USB_I2C_INT);
- start_int_ack(SE_USB_I2C_INT);
- start_int_umask(SE_USB_I2C_INT);
-
- start_int_set_rising_edge(SE_USB_INT);
- start_int_ack(SE_USB_INT);
- start_int_umask(SE_USB_INT);
-
- start_int_set_rising_edge(SE_USB_NEED_CLK_INT);
- start_int_ack(SE_USB_NEED_CLK_INT);
- start_int_umask(SE_USB_NEED_CLK_INT);
-
- start_int_set_rising_edge(SE_USB_AHB_NEED_CLK_INT);
- start_int_ack(SE_USB_AHB_NEED_CLK_INT);
- start_int_umask(SE_USB_AHB_NEED_CLK_INT);
-}
-
-static void pnx4008_unset_usb_bits(void)
-{
- start_int_mask(SE_USB_OTG_ATX_INT_N);
- start_int_mask(SE_USB_OTG_TIMER_INT);
- start_int_mask(SE_USB_I2C_INT);
- start_int_mask(SE_USB_INT);
- start_int_mask(SE_USB_NEED_CLK_INT);
- start_int_mask(SE_USB_AHB_NEED_CLK_INT);
-}
-
-static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = 0;
- struct ohci_hcd *ohci;
- const struct hc_driver *driver = &ohci_pnx4008_hc_driver;
- struct i2c_adapter *i2c_adap;
- struct i2c_board_info i2c_info;
-
- int ret = 0, irq;
-
- dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (pnx4008)\n", hcd_name);
- if (usb_disabled()) {
- err("USB is disabled");
- ret = -ENODEV;
- goto out;
- }
-
- if (pdev->num_resources != 2
- || pdev->resource[0].flags != IORESOURCE_MEM
- || pdev->resource[1].flags != IORESOURCE_IRQ) {
- err("Invalid resource configuration");
- ret = -ENODEV;
- goto out;
- }
-
- /* Enable AHB slave USB clock, needed for further USB clock control */
- __raw_writel(USB_SLAVE_HCLK_EN | (1 << 19), USB_CTRL);
-
- ret = i2c_add_driver(&isp1301_driver);
- if (ret < 0) {
- err("failed to add ISP1301 driver");
- goto out;
- }
- i2c_adap = i2c_get_adapter(2);
- memset(&i2c_info, 0, sizeof(struct i2c_board_info));
- strlcpy(i2c_info.type, "isp1301_pnx", I2C_NAME_SIZE);
- isp1301_i2c_client = i2c_new_probed_device(i2c_adap, &i2c_info,
- normal_i2c, NULL);
- i2c_put_adapter(i2c_adap);
- if (!isp1301_i2c_client) {
- err("failed to connect I2C to ISP1301 USB Transceiver");
- ret = -ENODEV;
- goto out_i2c_driver;
- }
-
- isp1301_configure();
-
- /* Enable USB PLL */
- usb_clk = clk_get(&pdev->dev, "ck_pll5");
- if (IS_ERR(usb_clk)) {
- err("failed to acquire USB PLL");
- ret = PTR_ERR(usb_clk);
- goto out1;
- }
-
- ret = clk_enable(usb_clk);
- if (ret < 0) {
- err("failed to start USB PLL");
- goto out2;
- }
-
- ret = clk_set_rate(usb_clk, 48000);
- if (ret < 0) {
- err("failed to set USB clock rate");
- goto out3;
- }
-
- __raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
-
- /* Set to enable all needed USB clocks */
- __raw_writel(USB_CLOCK_MASK, USB_OTG_CLK_CTRL);
-
- while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) !=
- USB_CLOCK_MASK) ;
-
- hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev));
- if (!hcd) {
- err("Failed to allocate HC buffer");
- ret = -ENOMEM;
- goto out3;
- }
-
- /* Set all USB bits in the Start Enable register */
- pnx4008_set_usb_bits();
-
- hcd->rsrc_start = pdev->resource[0].start;
- hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- dev_dbg(&pdev->dev, "request_mem_region failed\n");
- ret = -ENOMEM;
- goto out4;
- }
- hcd->regs = (void __iomem *)pdev->resource[0].start;
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- ret = -ENXIO;
- goto out4;
- }
-
- pnx4008_start_hc();
- platform_set_drvdata(pdev, hcd);
- ohci = hcd_to_ohci(hcd);
- ohci_hcd_init(ohci);
-
- dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq);
- ret = usb_add_hcd(hcd, irq, 0);
- if (ret == 0)
- return ret;
-
- pnx4008_stop_hc();
-out4:
- pnx4008_unset_usb_bits();
- usb_put_hcd(hcd);
-out3:
- clk_disable(usb_clk);
-out2:
- clk_put(usb_clk);
-out1:
- i2c_unregister_device(isp1301_i2c_client);
- isp1301_i2c_client = NULL;
-out_i2c_driver:
- i2c_del_driver(&isp1301_driver);
-out:
- return ret;
-}
-
-static int usb_hcd_pnx4008_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_remove_hcd(hcd);
- pnx4008_stop_hc();
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
- pnx4008_unset_usb_bits();
- clk_disable(usb_clk);
- clk_put(usb_clk);
- i2c_unregister_device(isp1301_i2c_client);
- isp1301_i2c_client = NULL;
- i2c_del_driver(&isp1301_driver);
-
- platform_set_drvdata(pdev, NULL);
-
- return 0;
-}
-
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:usb-ohci");
-
-static struct platform_driver usb_hcd_pnx4008_driver = {
- .driver = {
- .name = "usb-ohci",
- .owner = THIS_MODULE,
- },
- .probe = usb_hcd_pnx4008_probe,
- .remove = usb_hcd_pnx4008_remove,
-};
-