^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * driver for NXP USB Host devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Currently supported OHCI host devices:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * - NXP LPC32xx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Authors: Dmitry Chigirev <source@mvista.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Vitaly Wool <vitalywool@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * register initialization is based on code examples provided by Philips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Copyright (c) 2005 Koninklijke Philips Electronics N.V.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * NOTE: This driver does not have suspend/resume functionality
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * This driver is intended for engineering development purposes only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * 2005-2006 (c) MontaVista Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/usb/isp1301.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/usb/hcd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "ohci.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define USB_CONFIG_BASE 0x31020000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* USB_OTG_STAT_CONTROL bit defines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define TRANSPARENT_I2C_EN (1 << 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define HOST_EN (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* On LPC32xx, those are undefined */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #ifndef start_int_set_falling_edge
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define start_int_set_falling_edge(irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define start_int_set_rising_edge(irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define start_int_ack(irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define start_int_mask(irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define start_int_umask(irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define DRIVER_DESC "OHCI NXP driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static const char hcd_name[] = "ohci-nxp";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static struct hc_driver __read_mostly ohci_nxp_hc_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static struct i2c_client *isp1301_i2c_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static struct clk *usb_host_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static void isp1301_configure_lpc32xx(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* LPC32XX only supports DAT_SE0 USB mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) /* This sequence is important */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) /* Disable transparent UART mode first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) (ISP1301_I2C_MODE_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) MC1_UART_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) (ISP1301_I2C_MODE_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) ~MC1_SPEED_REG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) ISP1301_I2C_MODE_CONTROL_1, MC1_SPEED_REG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) (ISP1301_I2C_MODE_CONTROL_2 | ISP1301_I2C_REG_CLEAR_ADDR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ~0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) ISP1301_I2C_MODE_CONTROL_2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) (MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) (ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR), ~0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) ISP1301_I2C_MODE_CONTROL_1, MC1_DAT_SE0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) ISP1301_I2C_OTG_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) (OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) (ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) (OTG1_DM_PULLUP | OTG1_DP_PULLUP));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) ISP1301_I2C_INTERRUPT_LATCH | ISP1301_I2C_REG_CLEAR_ADDR, ~0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) ISP1301_I2C_INTERRUPT_FALLING | ISP1301_I2C_REG_CLEAR_ADDR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ~0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) ISP1301_I2C_INTERRUPT_RISING | ISP1301_I2C_REG_CLEAR_ADDR, ~0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) printk(KERN_INFO "ISP1301 Vendor ID : 0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) i2c_smbus_read_word_data(isp1301_i2c_client, 0x00));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) printk(KERN_INFO "ISP1301 Product ID : 0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) i2c_smbus_read_word_data(isp1301_i2c_client, 0x02));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) printk(KERN_INFO "ISP1301 Version ID : 0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) i2c_smbus_read_word_data(isp1301_i2c_client, 0x14));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static void isp1301_configure(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) isp1301_configure_lpc32xx();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static inline void isp1301_vbus_on(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) i2c_smbus_write_byte_data(isp1301_i2c_client, ISP1301_I2C_OTG_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) OTG1_VBUS_DRV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static inline void isp1301_vbus_off(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) i2c_smbus_write_byte_data(isp1301_i2c_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) OTG1_VBUS_DRV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static void ohci_nxp_start_hc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) void __iomem *usb_otg_stat_control = ioremap(USB_CONFIG_BASE + 0x110, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) unsigned long tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) if (WARN_ON(!usb_otg_stat_control))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) tmp = __raw_readl(usb_otg_stat_control) | HOST_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) __raw_writel(tmp, usb_otg_stat_control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) isp1301_vbus_on();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) iounmap(usb_otg_stat_control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static void ohci_nxp_stop_hc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) void __iomem *usb_otg_stat_control = ioremap(USB_CONFIG_BASE + 0x110, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) unsigned long tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (WARN_ON(!usb_otg_stat_control))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) isp1301_vbus_off();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) tmp = __raw_readl(usb_otg_stat_control) & ~HOST_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) __raw_writel(tmp, usb_otg_stat_control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) iounmap(usb_otg_stat_control);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static int ohci_hcd_nxp_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct usb_hcd *hcd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) const struct hc_driver *driver = &ohci_nxp_hc_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct resource *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) int ret = 0, irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct device_node *isp1301_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (pdev->dev.of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) isp1301_node = of_parse_phandle(pdev->dev.of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) "transceiver", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) isp1301_node = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) isp1301_i2c_client = isp1301_get_client(isp1301_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (!isp1301_i2c_client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return -EPROBE_DEFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) goto fail_disable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (usb_disabled()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) dev_err(&pdev->dev, "USB is disabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) ret = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) goto fail_disable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /* Enable USB host clock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) usb_host_clk = devm_clk_get(&pdev->dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) if (IS_ERR(usb_host_clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) dev_err(&pdev->dev, "failed to acquire USB OHCI clock\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ret = PTR_ERR(usb_host_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) goto fail_disable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) ret = clk_prepare_enable(usb_host_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) dev_err(&pdev->dev, "failed to start USB OHCI clock\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) goto fail_disable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) isp1301_configure();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (!hcd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) dev_err(&pdev->dev, "Failed to allocate HC buffer\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) goto fail_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) hcd->regs = devm_ioremap_resource(&pdev->dev, res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (IS_ERR(hcd->regs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ret = PTR_ERR(hcd->regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) goto fail_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) hcd->rsrc_start = res->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) hcd->rsrc_len = resource_size(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) irq = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (irq < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) ret = -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) goto fail_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) ohci_nxp_start_hc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) platform_set_drvdata(pdev, hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) ret = usb_add_hcd(hcd, irq, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) if (ret == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) device_wakeup_enable(hcd->self.controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) ohci_nxp_stop_hc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) fail_resource:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) fail_hcd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) clk_disable_unprepare(usb_host_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) fail_disable:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) isp1301_i2c_client = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static int ohci_hcd_nxp_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct usb_hcd *hcd = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) usb_remove_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) ohci_nxp_stop_hc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) clk_disable_unprepare(usb_host_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) isp1301_i2c_client = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* work with hotplug and coldplug */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) MODULE_ALIAS("platform:usb-ohci");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static const struct of_device_id ohci_hcd_nxp_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) { .compatible = "nxp,ohci-nxp" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) MODULE_DEVICE_TABLE(of, ohci_hcd_nxp_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static struct platform_driver ohci_hcd_nxp_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) .name = "usb-ohci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) .of_match_table = of_match_ptr(ohci_hcd_nxp_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) .probe = ohci_hcd_nxp_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) .remove = ohci_hcd_nxp_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static int __init ohci_nxp_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (usb_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) pr_info("%s: " DRIVER_DESC "\n", hcd_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) ohci_init_driver(&ohci_nxp_hc_driver, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return platform_driver_register(&ohci_hcd_nxp_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) module_init(ohci_nxp_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static void __exit ohci_nxp_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) platform_driver_unregister(&ohci_hcd_nxp_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) module_exit(ohci_nxp_cleanup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) MODULE_DESCRIPTION(DRIVER_DESC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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