1e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein/* 2e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * drivers/usb/host/ehci-orion.c 3e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * 4e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * Tzachi Perelstein <tzachi@marvell.com> 5e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * 6e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * This file is licensed under the terms of the GNU General Public 7e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * License version 2. This program is licensed "as is" without any 8e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * warranty of any kind, whether express or implied. 9e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 10e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 11e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#include <linux/kernel.h> 12e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#include <linux/module.h> 13e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#include <linux/platform_device.h> 1492aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek#include <linux/mbus.h> 156f088f1d215be5250582b974f83f0e3aa6ad3a28Lennert Buytenhek#include <plat/ehci-orion.h> 16e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 17e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define rdl(off) __raw_readl(hcd->regs + (off)) 18e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define wrl(off, val) __raw_writel((val), hcd->regs + (off)) 19e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 20e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_CMD 0x140 21e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_MODE 0x1a8 2292aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek#define USB_CAUSE 0x310 2392aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek#define USB_MASK 0x314 2492aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek#define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4)) 2592aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek#define USB_WINDOW_BASE(i) (0x324 + ((i) << 4)) 26e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_IPG 0x360 27e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_PHY_PWR_CTRL 0x400 28e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_PHY_TX_CTRL 0x420 29e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_PHY_RX_CTRL 0x430 30e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_PHY_IVREF_CTRL 0x440 31e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein#define USB_PHY_TST_GRP_CTRL 0x450 32e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 33e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein/* 34e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * Implement Orion USB controller specification guidelines 35e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 36fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitritstatic void orion_usb_phy_v1_setup(struct usb_hcd *hcd) 37e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein{ 38fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit /* The below GLs are according to the Orion Errata document */ 39e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 40e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * Clear interrupt cause and mask 41e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 42e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_CAUSE, 0); 43e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_MASK, 0); 44e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 45e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 46e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * Reset controller 47e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 48e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_CMD, rdl(USB_CMD) | 0x2); 49e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein while (rdl(USB_CMD) & 0x2); 50e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 51e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 52e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-10: Set IPG for non start of frame packets 53e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * Bits[14:8]=0xc 54e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 55e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_IPG, (rdl(USB_IPG) & ~0x7f00) | 0xc00); 56e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 57e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 58e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-9: USB 2.0 Power Control 59e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * BG_VSEL[7:6]=0x1 60e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 61e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_PHY_PWR_CTRL, (rdl(USB_PHY_PWR_CTRL) & ~0xc0)| 0x40); 62e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 63e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 64e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-1: USB PHY Tx Control - force calibration to '8' 65e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * TXDATA_BLOCK_EN[21]=0x1, EXT_RCAL_EN[13]=0x1, IMP_CAL[6:3]=0x8 66e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 67e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_PHY_TX_CTRL, (rdl(USB_PHY_TX_CTRL) & ~0x78) | 0x202040); 68e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 69e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 70e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-3 GL# USB-9: USB PHY Rx Control 71e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * RXDATA_BLOCK_LENGHT[31:30]=0x3, EDGE_DET_SEL[27:26]=0, 72e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * CDR_FASTLOCK_EN[21]=0, DISCON_THRESHOLD[9:8]=0, SQ_THRESH[7:4]=0x1 73e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 74e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_PHY_RX_CTRL, (rdl(USB_PHY_RX_CTRL) & ~0xc2003f0) | 0xc0000010); 75e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 76e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 77e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-3 GL# USB-9: USB PHY IVREF Control 78e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * PLLVDD12[1:0]=0x2, RXVDD[5:4]=0x3, Reserved[19]=0 79e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 80e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_PHY_IVREF_CTRL, (rdl(USB_PHY_IVREF_CTRL) & ~0x80003 ) | 0x32); 81e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 82e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 83e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-3 GL# USB-9: USB PHY Test Group Control 84e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * REG_FIFO_SQ_RST[15]=0 85e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 86e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_PHY_TST_GRP_CTRL, rdl(USB_PHY_TST_GRP_CTRL) & ~0x8000); 87e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 88e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 89e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * Stop and reset controller 90e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 91e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_CMD, rdl(USB_CMD) & ~0x1); 92e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_CMD, rdl(USB_CMD) | 0x2); 93e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein while (rdl(USB_CMD) & 0x2); 94e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 95e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 96e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-5 Streaming disable REG_USB_MODE[4]=1 97e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * TBD: This need to be done after each reset! 98e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * GL# USB-4 Setup USB Host mode 99e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 100e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein wrl(USB_MODE, 0x13); 101e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein} 102e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 103e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinstatic int ehci_orion_setup(struct usb_hcd *hcd) 104e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein{ 105e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein struct ehci_hcd *ehci = hcd_to_ehci(hcd); 106e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein int retval; 107e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 108bcf40815e0cda371cecc242398fe39b873bb1047Matthieu CASTET hcd->has_tt = 1; 109bcf40815e0cda371cecc242398fe39b873bb1047Matthieu CASTET 110e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein retval = ehci_halt(ehci); 111e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (retval) 112e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return retval; 113e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 114e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 115e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * data structure init 116e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 117e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein retval = ehci_init(hcd); 118e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (retval) 119e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return retval; 120e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 121bcf40815e0cda371cecc242398fe39b873bb1047Matthieu CASTET ehci_reset(ehci); 122129bd474a80726247e5b1c61fe66a413e63053bcLennert Buytenhek 123e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci_port_power(ehci, 0); 124e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 125e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return retval; 126e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein} 127e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 128e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinstatic const struct hc_driver ehci_orion_hc_driver = { 129e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .description = hcd_name, 130e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .product_desc = "Marvell Orion EHCI", 131e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .hcd_priv_size = sizeof(struct ehci_hcd), 132e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 133e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 134e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * generic hardware linkage 135e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 136e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .irq = ehci_irq, 137e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .flags = HCD_MEMORY | HCD_USB2, 138e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 139e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 140e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * basic lifecycle operations 141e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 142e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .reset = ehci_orion_setup, 143e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .start = ehci_run, 144e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .stop = ehci_stop, 145e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .shutdown = ehci_shutdown, 146e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 147e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 148e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * managing i/o requests and associated device resources 149e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 150e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .urb_enqueue = ehci_urb_enqueue, 151e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .urb_dequeue = ehci_urb_dequeue, 152e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .endpoint_disable = ehci_endpoint_disable, 153b18ffd49e86102a9ed0a1cc83fdafe3891e844e5Alan Stern .endpoint_reset = ehci_endpoint_reset, 154e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 155e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 156e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * scheduling support 157e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 158e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .get_frame_number = ehci_get_frame, 159e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 160e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 161e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein * root hub support 162e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 163e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .hub_status_data = ehci_hub_status_data, 164e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .hub_control = ehci_hub_control, 165e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .bus_suspend = ehci_bus_suspend, 166e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .bus_resume = ehci_bus_resume, 167a8e5177583e975fc1f7c621c93956f494df9b979Alan Stern .relinquish_port = ehci_relinquish_port, 1683a31155cfff0935e4b178f3dca733d2d60d2eb8dAlan Stern .port_handed_over = ehci_port_handed_over, 169914b701280a76f96890ad63eb0fa99bf204b961cAlan Stern 170914b701280a76f96890ad63eb0fa99bf204b961cAlan Stern .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, 171e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein}; 172e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 17392aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhekstatic void __init 17492aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhekehci_orion_conf_mbus_windows(struct usb_hcd *hcd, 17563a9332b232bdab0df6ef18a9f39e8d58a82bda4Andrew Lunn const struct mbus_dram_target_info *dram) 17692aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek{ 17792aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek int i; 17892aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek 17992aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek for (i = 0; i < 4; i++) { 18092aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek wrl(USB_WINDOW_CTRL(i), 0); 18192aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek wrl(USB_WINDOW_BASE(i), 0); 18292aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek } 18392aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek 18492aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek for (i = 0; i < dram->num_cs; i++) { 18563a9332b232bdab0df6ef18a9f39e8d58a82bda4Andrew Lunn const struct mbus_dram_window *cs = dram->cs + i; 18692aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek 18792aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek wrl(USB_WINDOW_CTRL(i), ((cs->size - 1) & 0xffff0000) | 18892aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek (cs->mbus_attr << 8) | 18992aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek (dram->mbus_dram_target_id << 4) | 1); 19092aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek wrl(USB_WINDOW_BASE(i), cs->base); 19192aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek } 19292aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek} 19392aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek 194dc2f2b7505c195a6963fc07b549e269eee417261Uwe Kleine-Königstatic int __devinit ehci_orion_drv_probe(struct platform_device *pdev) 195e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein{ 19692aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek struct orion_ehci_data *pd = pdev->dev.platform_data; 19763a9332b232bdab0df6ef18a9f39e8d58a82bda4Andrew Lunn const struct mbus_dram_target_info *dram; 198e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein struct resource *res; 199e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein struct usb_hcd *hcd; 200e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein struct ehci_hcd *ehci; 201e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein void __iomem *regs; 202e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein int irq, err; 203e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 204e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (usb_disabled()) 205e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return -ENODEV; 206e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 207e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein pr_debug("Initializing Orion-SoC USB Host Controller\n"); 208e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 209e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein irq = platform_get_irq(pdev, 0); 210e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (irq <= 0) { 211e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein dev_err(&pdev->dev, 212e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein "Found HC with no IRQ. Check %s setup!\n", 2137071a3ce0ca058ad2a9e3e8c33f30fb0bce62005Kay Sievers dev_name(&pdev->dev)); 214e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein err = -ENODEV; 215e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein goto err1; 216e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein } 217e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 218e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 219e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (!res) { 220e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein dev_err(&pdev->dev, 221e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein "Found HC with no register addr. Check %s setup!\n", 2227071a3ce0ca058ad2a9e3e8c33f30fb0bce62005Kay Sievers dev_name(&pdev->dev)); 223e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein err = -ENODEV; 224e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein goto err1; 225e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein } 226e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 2275672b7e6a99a91838c1b595a80d43006bcd9a178H Hartley Sweeten if (!request_mem_region(res->start, resource_size(res), 228e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci_orion_hc_driver.description)) { 229e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein dev_dbg(&pdev->dev, "controller already in use\n"); 230e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein err = -EBUSY; 231e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein goto err1; 232e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein } 233e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 2345672b7e6a99a91838c1b595a80d43006bcd9a178H Hartley Sweeten regs = ioremap(res->start, resource_size(res)); 235e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (regs == NULL) { 236e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein dev_dbg(&pdev->dev, "error mapping memory\n"); 237e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein err = -EFAULT; 238e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein goto err2; 239e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein } 240e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 241e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein hcd = usb_create_hcd(&ehci_orion_hc_driver, 2427071a3ce0ca058ad2a9e3e8c33f30fb0bce62005Kay Sievers &pdev->dev, dev_name(&pdev->dev)); 243e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (!hcd) { 244e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein err = -ENOMEM; 245e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein goto err3; 246e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein } 247e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 248e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein hcd->rsrc_start = res->start; 2495672b7e6a99a91838c1b595a80d43006bcd9a178H Hartley Sweeten hcd->rsrc_len = resource_size(res); 250e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein hcd->regs = regs; 251e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 252e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci = hcd_to_ehci(hcd); 253e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci->caps = hcd->regs + 0x100; 254e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci->regs = hcd->regs + 0x100 + 255c430131a02d677aa708f56342c1565edfdacb3c0Jan Andersson HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); 256e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); 257a8e5177583e975fc1f7c621c93956f494df9b979Alan Stern hcd->has_tt = 1; 258e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein ehci->sbrn = 0x20; 259e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 260e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein /* 26192aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek * (Re-)program MBUS remapping windows if we are asked to. 26292aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek */ 26363a9332b232bdab0df6ef18a9f39e8d58a82bda4Andrew Lunn dram = mv_mbus_dram_info(); 26463a9332b232bdab0df6ef18a9f39e8d58a82bda4Andrew Lunn if (dram) 26563a9332b232bdab0df6ef18a9f39e8d58a82bda4Andrew Lunn ehci_orion_conf_mbus_windows(hcd, dram); 26692aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek 26792aecfa95523384923b52c8ddaf948fc02a53e82Lennert Buytenhek /* 268fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit * setup Orion USB controller. 269e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein */ 270fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit switch (pd->phy_version) { 271fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit case EHCI_PHY_NA: /* dont change USB phy settings */ 272fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit break; 273fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit case EHCI_PHY_ORION: 274fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit orion_usb_phy_v1_setup(hcd); 275fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit break; 276fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit case EHCI_PHY_DD: 277fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit case EHCI_PHY_KW: 278fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit default: 279fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit printk(KERN_WARNING "Orion ehci -USB phy version isn't supported.\n"); 280fb6f552930e52699c8ac452c5a79ec3e97e6fc73Ronen Shitrit } 281e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 282b5dd18d8747010e3f3eb1cc76a49f94291938559Yong Zhang err = usb_add_hcd(hcd, irq, IRQF_SHARED); 283e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein if (err) 284e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein goto err4; 285e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 286e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return 0; 287e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 288e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinerr4: 289e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein usb_put_hcd(hcd); 290e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinerr3: 291e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein iounmap(regs); 292e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinerr2: 2935672b7e6a99a91838c1b595a80d43006bcd9a178H Hartley Sweeten release_mem_region(res->start, resource_size(res)); 294e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinerr1: 295e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein dev_err(&pdev->dev, "init %s fail, %d\n", 2967071a3ce0ca058ad2a9e3e8c33f30fb0bce62005Kay Sievers dev_name(&pdev->dev), err); 297e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 298e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return err; 299e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein} 300e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 301e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinstatic int __exit ehci_orion_drv_remove(struct platform_device *pdev) 302e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein{ 303e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein struct usb_hcd *hcd = platform_get_drvdata(pdev); 304e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 305e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein usb_remove_hcd(hcd); 306e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein iounmap(hcd->regs); 307e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein release_mem_region(hcd->rsrc_start, hcd->rsrc_len); 308e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein usb_put_hcd(hcd); 309e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 310e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein return 0; 311e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein} 312e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 313e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi PerelsteinMODULE_ALIAS("platform:orion-ehci"); 314e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein 315e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelsteinstatic struct platform_driver ehci_orion_driver = { 316e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .probe = ehci_orion_drv_probe, 317e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .remove = __exit_p(ehci_orion_drv_remove), 318e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .shutdown = usb_hcd_platform_shutdown, 319e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein .driver.name = "orion-ehci", 320e96ffe2f9debd5fdc53144259d9e5faa514736b9Tzachi Perelstein}; 321