X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fusb%2Fusb_ehci_core.c;h=813f64abd30c381645b6dd8b7f25b397ac1f4f57;hb=b81b773ead0687114dc8a800f99ea6e504447739;hp=765b5ddf75ee49da945bf3c02f23d8a7a1147274;hpb=aaf098cfeed04595d4c5100ffd39095d79edbf90;p=oweals%2Fu-boot.git diff --git a/drivers/usb/usb_ehci_core.c b/drivers/usb/usb_ehci_core.c index 765b5ddf75..813f64abd3 100644 --- a/drivers/usb/usb_ehci_core.c +++ b/drivers/usb/usb_ehci_core.c @@ -1,6 +1,8 @@ /*- * Copyright (c) 2007-2008, Juniper Networks, Inc. - * Copyright (c) 2008, Excito Elektronik i Skåne AB + * Copyright (c) 2008, Excito Elektronik i SkÃ¥ne AB + * Copyright (c) 2008, Michael Trimarchi + * * All rights reserved. * * This program is free software; you can redistribute it and/or @@ -18,80 +20,234 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ - #include +#include #include #include +#include #include "usb_ehci.h" int rootdev; -struct ehci_hccr *hccr; /* R/O registers, not need for volatile */ +struct ehci_hccr *hccr; /* R/O registers, not need for volatile */ volatile struct ehci_hcor *hcor; static uint16_t portreset; static struct QH qh_list __attribute__((aligned(32))); -struct usb_device_descriptor device = { - sizeof(struct usb_device_descriptor), /* bLength */ - 1, /* bDescriptorType: UDESC_DEVICE */ - 0x0002, /* bcdUSB: v2.0 */ - 9, /* bDeviceClass: UDCLASS_HUB */ - 0, /* bDeviceSubClass: UDSUBCLASS_HUB */ - 1, /* bDeviceProtocol: UDPROTO_HSHUBSTT */ - 64, /* bMaxPacketSize: 64 bytes */ - 0x0000, /* idVendor */ - 0x0000, /* idProduct */ - 0x0001, /* bcdDevice */ - 1, /* iManufacturer */ - 2, /* iProduct */ - 0, /* iSerialNumber */ - 1 /* bNumConfigurations: 1 */ +static struct descriptor { + struct usb_hub_descriptor hub; + struct usb_device_descriptor device; + struct usb_linux_config_descriptor config; + struct usb_linux_interface_descriptor interface; + struct usb_endpoint_descriptor endpoint; +} __attribute__ ((packed)) descriptor = { + { + 0x8, /* bDescLength */ + 0x29, /* bDescriptorType: hub descriptor */ + 2, /* bNrPorts -- runtime modified */ + 0, /* wHubCharacteristics */ + 0xff, /* bPwrOn2PwrGood */ + 0, /* bHubCntrCurrent */ + {}, /* Device removable */ + {} /* at most 7 ports! XXX */ + }, + { + 0x12, /* bLength */ + 1, /* bDescriptorType: UDESC_DEVICE */ + 0x0002, /* bcdUSB: v2.0 */ + 9, /* bDeviceClass: UDCLASS_HUB */ + 0, /* bDeviceSubClass: UDSUBCLASS_HUB */ + 1, /* bDeviceProtocol: UDPROTO_HSHUBSTT */ + 64, /* bMaxPacketSize: 64 bytes */ + 0x0000, /* idVendor */ + 0x0000, /* idProduct */ + 0x0001, /* bcdDevice */ + 1, /* iManufacturer */ + 2, /* iProduct */ + 0, /* iSerialNumber */ + 1 /* bNumConfigurations: 1 */ + }, + { + 0x9, + 2, /* bDescriptorType: UDESC_CONFIG */ + cpu_to_le16(0x19), + 1, /* bNumInterface */ + 1, /* bConfigurationValue */ + 0, /* iConfiguration */ + 0x40, /* bmAttributes: UC_SELF_POWER */ + 0 /* bMaxPower */ + }, + { + 0x9, /* bLength */ + 4, /* bDescriptorType: UDESC_INTERFACE */ + 0, /* bInterfaceNumber */ + 0, /* bAlternateSetting */ + 1, /* bNumEndpoints */ + 9, /* bInterfaceClass: UICLASS_HUB */ + 0, /* bInterfaceSubClass: UISUBCLASS_HUB */ + 0, /* bInterfaceProtocol: UIPROTO_HSHUBSTT */ + 0 /* iInterface */ + }, + { + 0x7, /* bLength */ + 5, /* bDescriptorType: UDESC_ENDPOINT */ + 0x81, /* bEndpointAddress: + * UE_DIR_IN | EHCI_INTR_ENDPT + */ + 3, /* bmAttributes: UE_INTERRUPT */ + 8, 0, /* wMaxPacketSize */ + 255 /* bInterval */ + }, }; -struct usb_config_descriptor config = { - sizeof(struct usb_config_descriptor), - 2, /* bDescriptorType: UDESC_CONFIG */ - sizeof(struct usb_config_descriptor) + - sizeof(struct usb_interface_descriptor) + - sizeof(struct usb_endpoint_descriptor), - 0, - 1, /* bNumInterface */ - 1, /* bConfigurationValue */ - 0, /* iConfiguration */ - 0x40, /* bmAttributes: UC_SELF_POWER */ - 0 /* bMaxPower */ -}; +#if defined(CONFIG_EHCI_IS_TDI) +#define ehci_is_TDI() (1) +#else +#define ehci_is_TDI() (0) +#endif + +#if defined(CONFIG_EHCI_DCACHE) +/* + * Routines to handle (flush/invalidate) the dcache for the QH and qTD + * structures and data buffers. This is needed on platforms using this + * EHCI support with dcache enabled. + */ +static void flush_invalidate(u32 addr, int size, int flush) +{ + if (flush) + flush_dcache_range(addr, addr + size); + else + invalidate_dcache_range(addr, addr + size); +} -struct usb_interface_descriptor interface = { - sizeof(struct usb_interface_descriptor), /* bLength */ - 4, /* bDescriptorType: UDESC_INTERFACE */ - 0, /* bInterfaceNumber */ - 0, /* bAlternateSetting */ - 1, /* bNumEndpoints */ - 9, /* bInterfaceClass: UICLASS_HUB */ - 0, /* bInterfaceSubClass: UISUBCLASS_HUB */ - 0, /* bInterfaceProtocol: UIPROTO_HSHUBSTT */ - 0 /* iInterface */ -}; +static void cache_qtd(struct qTD *qtd, int flush) +{ + u32 *ptr = (u32 *)qtd->qt_buffer[0]; + int len = (qtd->qt_token & 0x7fff0000) >> 16; -struct usb_endpoint_descriptor endpoint = { -sizeof(struct usb_endpoint_descriptor), /* bLength */ - 5, /* bDescriptorType: UDESC_ENDPOINT */ - 0x81, /* bEndpointAddress: UE_DIR_IN | EHCI_INTR_ENDPT */ - 3, /* bmAttributes: UE_INTERRUPT */ - 8, 0, /* wMaxPacketSize */ - 255 /* bInterval */ -}; + flush_invalidate((u32)qtd, sizeof(struct qTD), flush); + if (ptr && len) + flush_invalidate((u32)ptr, len, flush); +} -struct usb_hub_descriptor hub = { - sizeof(struct usb_hub_descriptor), /* bDescLength */ - 0x29, /* bDescriptorType: hub descriptor */ - 2, /* bNrPorts -- runtime modified */ - 0, 0, /* wHubCharacteristics */ - 0xff, /* bPwrOn2PwrGood */ - {}, /* bHubCntrCurrent */ - {} /* at most 7 ports! XXX */ -}; + +static inline struct QH *qh_addr(struct QH *qh) +{ + return (struct QH *)((u32)qh & 0xffffffe0); +} + +static void cache_qh(struct QH *qh, int flush) +{ + struct qTD *qtd; + struct qTD *next; + static struct qTD *first_qtd; + + /* + * Walk the QH list and flush/invalidate all entries + */ + while (1) { + flush_invalidate((u32)qh_addr(qh), sizeof(struct QH), flush); + if ((u32)qh & QH_LINK_TYPE_QH) + break; + qh = qh_addr(qh); + qh = (struct QH *)qh->qh_link; + } + qh = qh_addr(qh); + + /* + * Save first qTD pointer, needed for invalidating pass on this QH + */ + if (flush) + first_qtd = qtd = (struct qTD *)(*(u32 *)&qh->qh_overlay & + 0xffffffe0); + else + qtd = first_qtd; + + /* + * Walk the qTD list and flush/invalidate all entries + */ + while (1) { + if (qtd == NULL) + break; + cache_qtd(qtd, flush); + next = (struct qTD *)((u32)qtd->qt_next & 0xffffffe0); + if (next == qtd) + break; + qtd = next; + } +} + +static inline void ehci_flush_dcache(struct QH *qh) +{ + cache_qh(qh, 1); +} + +static inline void ehci_invalidate_dcache(struct QH *qh) +{ + cache_qh(qh, 0); +} +#else /* CONFIG_EHCI_DCACHE */ +/* + * + */ +static inline void ehci_flush_dcache(struct QH *qh) +{ +} + +static inline void ehci_invalidate_dcache(struct QH *qh) +{ +} +#endif /* CONFIG_EHCI_DCACHE */ + +static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec) +{ + uint32_t result; + do { + result = ehci_readl(ptr); + if (result == ~(uint32_t)0) + return -1; + result &= mask; + if (result == done) + return 0; + udelay(1); + usec--; + } while (usec > 0); + return -1; +} + +static void ehci_free(void *p, size_t sz) +{ + +} + +static int ehci_reset(void) +{ + uint32_t cmd; + uint32_t tmp; + uint32_t *reg_ptr; + int ret = 0; + + cmd = ehci_readl(&hcor->or_usbcmd); + cmd |= CMD_RESET; + ehci_writel(&hcor->or_usbcmd, cmd); + ret = handshake((uint32_t *)&hcor->or_usbcmd, CMD_RESET, 0, 250 * 1000); + if (ret < 0) { + printf("EHCI fail to reset\n"); + goto out; + } + + if (ehci_is_TDI()) { + reg_ptr = (uint32_t *)((u8 *)hcor + USBMODE); + tmp = ehci_readl(reg_ptr); + tmp |= USBMODE_CM_HC; +#if defined(CONFIG_EHCI_MMIO_BIG_ENDIAN) + tmp |= USBMODE_BE; +#endif + ehci_writel(reg_ptr, tmp); + } +out: + return ret; +} static void *ehci_alloc(size_t sz, size_t align) { @@ -107,14 +263,14 @@ static void *ehci_alloc(size_t sz, size_t align) break; case sizeof(struct qTD): if (ntds == 3) { - debug("out of TDs"); + debug("out of TDs\n"); return NULL; } p = &td[ntds]; ntds++; break; default: - debug("unknown allocation size"); + debug("unknown allocation size\n"); return NULL; } @@ -122,10 +278,6 @@ static void *ehci_alloc(size_t sz, size_t align) return p; } -static void ehci_free(void *p, size_t sz) -{ -} - static int ehci_td_buffer(struct qTD *td, void *buf, size_t sz) { uint32_t addr, delta, next; @@ -134,7 +286,7 @@ static int ehci_td_buffer(struct qTD *td, void *buf, size_t sz) addr = (uint32_t) buf; idx = 0; while (idx < 5) { - td->qt_buffer[idx] = cpu_to_le32(addr); + td->qt_buffer[idx] = cpu_to_hc32(addr); next = (addr + 4096) & ~4095; delta = next - addr; if (delta >= sz) @@ -145,7 +297,7 @@ static int ehci_td_buffer(struct qTD *td, void *buf, size_t sz) } if (idx == 5) { - debug("out of buffer pointers (%u bytes left)", sz); + debug("out of buffer pointers (%u bytes left)\n", sz); return -1; } @@ -163,22 +315,24 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, uint32_t *tdp; uint32_t endpt, token, usbsts; uint32_t c, toggle; + uint32_t cmd; + int ret = 0; - debug("dev=%p, pipe=%lx, buffer=%p, length=%d, req=%p", dev, pipe, + debug("dev=%p, pipe=%lx, buffer=%p, length=%d, req=%p\n", dev, pipe, buffer, length, req); if (req != NULL) - debug("req=%u (%#x), type=%u (%#x), value=%u (%#x), index=%u", + debug("req=%u (%#x), type=%u (%#x), value=%u (%#x), index=%u\n", req->request, req->request, req->requesttype, req->requesttype, le16_to_cpu(req->value), le16_to_cpu(req->value), - le16_to_cpu(req->index), le16_to_cpu(req->index)); + le16_to_cpu(req->index)); qh = ehci_alloc(sizeof(struct QH), 32); if (qh == NULL) { - debug("unable to allocate QH"); + debug("unable to allocate QH\n"); return -1; } - qh->qh_link = cpu_to_le32((uint32_t)&qh_list | QH_LINK_TYPE_QH); + qh->qh_link = cpu_to_hc32((uint32_t)&qh_list | QH_LINK_TYPE_QH); c = (usb_pipespeed(pipe) != USB_SPEED_HIGH && usb_pipeendpoint(pipe) == 0) ? 1 : 0; endpt = (8 << 28) | @@ -189,13 +343,13 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, (usb_pipespeed(pipe) << 12) | (usb_pipeendpoint(pipe) << 8) | (0 << 7) | (usb_pipedevice(pipe) << 0); - qh->qh_endpt1 = cpu_to_le32(endpt); + qh->qh_endpt1 = cpu_to_hc32(endpt); endpt = (1 << 30) | (dev->portnr << 23) | (dev->parent->devnum << 16) | (0 << 8) | (0 << 0); - qh->qh_endpt2 = cpu_to_le32(endpt); - qh->qh_overlay.qt_next = cpu_to_le32(QT_NEXT_TERMINATE); - qh->qh_overlay.qt_altnext = cpu_to_le32(QT_NEXT_TERMINATE); + qh->qh_endpt2 = cpu_to_hc32(endpt); + qh->qh_overlay.qt_next = cpu_to_hc32(QT_NEXT_TERMINATE); + qh->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); td = NULL; tdp = &qh->qh_overlay.qt_next; @@ -206,21 +360,21 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, if (req != NULL) { td = ehci_alloc(sizeof(struct qTD), 32); if (td == NULL) { - debug("unable to allocate SETUP td"); + debug("unable to allocate SETUP td\n"); goto fail; } - td->qt_next = cpu_to_le32(QT_NEXT_TERMINATE); - td->qt_altnext = cpu_to_le32(QT_NEXT_TERMINATE); + td->qt_next = cpu_to_hc32(QT_NEXT_TERMINATE); + td->qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); token = (0 << 31) | (sizeof(*req) << 16) | (0 << 15) | (0 << 12) | (3 << 10) | (2 << 8) | (0x80 << 0); - td->qt_token = cpu_to_le32(token); + td->qt_token = cpu_to_hc32(token); if (ehci_td_buffer(td, req, sizeof(*req)) != 0) { - debug("unable construct SETUP td"); + debug("unable construct SETUP td\n"); ehci_free(td, sizeof(*td)); goto fail; } - *tdp = cpu_to_le32((uint32_t) td); + *tdp = cpu_to_hc32((uint32_t) td); tdp = &td->qt_next; toggle = 1; } @@ -228,75 +382,94 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, if (length > 0 || req == NULL) { td = ehci_alloc(sizeof(struct qTD), 32); if (td == NULL) { - debug("unable to allocate DATA td"); + debug("unable to allocate DATA td\n"); goto fail; } - td->qt_next = cpu_to_le32(QT_NEXT_TERMINATE); - td->qt_altnext = cpu_to_le32(QT_NEXT_TERMINATE); + td->qt_next = cpu_to_hc32(QT_NEXT_TERMINATE); + td->qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); token = (toggle << 31) | (length << 16) | ((req == NULL ? 1 : 0) << 15) | (0 << 12) | (3 << 10) | ((usb_pipein(pipe) ? 1 : 0) << 8) | (0x80 << 0); - td->qt_token = cpu_to_le32(token); + td->qt_token = cpu_to_hc32(token); if (ehci_td_buffer(td, buffer, length) != 0) { - debug("unable construct DATA td"); + debug("unable construct DATA td\n"); ehci_free(td, sizeof(*td)); goto fail; } - *tdp = cpu_to_le32((uint32_t) td); + *tdp = cpu_to_hc32((uint32_t) td); tdp = &td->qt_next; } if (req != NULL) { td = ehci_alloc(sizeof(struct qTD), 32); if (td == NULL) { - debug("unable to allocate ACK td"); + debug("unable to allocate ACK td\n"); goto fail; } - td->qt_next = cpu_to_le32(QT_NEXT_TERMINATE); - td->qt_altnext = cpu_to_le32(QT_NEXT_TERMINATE); + td->qt_next = cpu_to_hc32(QT_NEXT_TERMINATE); + td->qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); token = (toggle << 31) | (0 << 16) | (1 << 15) | (0 << 12) | (3 << 10) | ((usb_pipein(pipe) ? 0 : 1) << 8) | (0x80 << 0); - td->qt_token = cpu_to_le32(token); - *tdp = cpu_to_le32((uint32_t) td); + td->qt_token = cpu_to_hc32(token); + *tdp = cpu_to_hc32((uint32_t) td); tdp = &td->qt_next; } - qh_list.qh_link = cpu_to_le32((uint32_t) qh | QH_LINK_TYPE_QH); + qh_list.qh_link = cpu_to_hc32((uint32_t) qh | QH_LINK_TYPE_QH); + + /* Flush dcache */ + ehci_flush_dcache(&qh_list); - usbsts = le32_to_cpu(hcor->or_usbsts); - hcor->or_usbsts = cpu_to_le32(usbsts & 0x3f); + usbsts = ehci_readl(&hcor->or_usbsts); + ehci_writel(&hcor->or_usbsts, (usbsts & 0x3f)); /* Enable async. schedule. */ - hcor->or_usbcmd |= cpu_to_le32(0x20); - while ((hcor->or_usbsts & cpu_to_le32(0x8000)) == 0) - udelay(1); + cmd = ehci_readl(&hcor->or_usbcmd); + cmd |= CMD_ASE; + ehci_writel(&hcor->or_usbcmd, cmd); + + ret = handshake((uint32_t *)&hcor->or_usbsts, STD_ASS, STD_ASS, + 100 * 1000); + if (ret < 0) { + printf("EHCI fail timeout STD_ASS set\n"); + goto fail; + } /* Wait for TDs to be processed. */ ts = get_timer(0); vtd = td; do { - token = le32_to_cpu(vtd->qt_token); + /* Invalidate dcache */ + ehci_invalidate_dcache(&qh_list); + token = hc32_to_cpu(vtd->qt_token); if (!(token & 0x80)) break; } while (get_timer(ts) < CONFIG_SYS_HZ); /* Disable async schedule. */ - hcor->or_usbcmd &= ~cpu_to_le32(0x20); - while ((hcor->or_usbsts & cpu_to_le32(0x8000)) != 0) - udelay(1); + cmd = ehci_readl(&hcor->or_usbcmd); + cmd &= ~CMD_ASE; + ehci_writel(&hcor->or_usbcmd, cmd); + + ret = handshake((uint32_t *)&hcor->or_usbsts, STD_ASS, 0, + 100 * 1000); + if (ret < 0) { + printf("EHCI fail timeout STD_ASS reset\n"); + goto fail; + } - qh_list.qh_link = cpu_to_le32((uint32_t)&qh_list | QH_LINK_TYPE_QH); + qh_list.qh_link = cpu_to_hc32((uint32_t)&qh_list | QH_LINK_TYPE_QH); - token = le32_to_cpu(qh->qh_overlay.qt_token); + token = hc32_to_cpu(qh->qh_overlay.qt_token); if (!(token & 0x80)) { - debug("TOKEN=%#x", token); + debug("TOKEN=%#x\n", token); switch (token & 0xfc) { case 0: toggle = token >> 31; @@ -322,20 +495,20 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, dev->act_len = length - ((token >> 16) & 0x7fff); } else { dev->act_len = 0; - debug("dev=%u, usbsts=%#x, p[1]=%#x, p[2]=%#x", - dev->devnum, le32_to_cpu(hcor->or_usbsts), - le32_to_cpu(hcor->or_portsc[0]), - le32_to_cpu(hcor->or_portsc[1])); + debug("dev=%u, usbsts=%#x, p[1]=%#x, p[2]=%#x\n", + dev->devnum, ehci_readl(&hcor->or_usbsts), + ehci_readl(&hcor->or_portsc[0]), + ehci_readl(&hcor->or_portsc[1])); } return (dev->status != USB_ST_NOT_PROC) ? 0 : -1; fail: - td = (void *)le32_to_cpu(qh->qh_overlay.qt_next); + td = (void *)hc32_to_cpu(qh->qh_overlay.qt_next); while (td != (void *)QT_NEXT_TERMINATE) { qh->qh_overlay.qt_next = td->qt_next; ehci_free(td, sizeof(*td)); - td = (void *)le32_to_cpu(qh->qh_overlay.qt_next); + td = (void *)hc32_to_cpu(qh->qh_overlay.qt_next); } ehci_free(qh, sizeof(*qh)); return -1; @@ -351,39 +524,48 @@ static inline int min3(int a, int b, int c) return a; } +int ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, int length, struct devrequest *req) { uint8_t tmpbuf[4]; u16 typeReq; - void *srcptr; + void *srcptr = NULL; int len, srclen; uint32_t reg; + uint32_t *status_reg; + if (le16_to_cpu(req->index) >= CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) { + printf("The request port(%d) is not configured\n", + le16_to_cpu(req->index) - 1); + return -1; + } + status_reg = (uint32_t *)&hcor->or_portsc[ + le16_to_cpu(req->index) - 1]; srclen = 0; - srcptr = NULL; - debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u", + debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u\n", req->request, req->request, req->requesttype, req->requesttype, le16_to_cpu(req->value), le16_to_cpu(req->index)); typeReq = req->request << 8 | req->requesttype; - switch (typeReq) { + switch (le16_to_cpu(typeReq)) { case DeviceRequest | USB_REQ_GET_DESCRIPTOR: switch (le16_to_cpu(req->value) >> 8) { case USB_DT_DEVICE: - srcptr = &device; - srclen = sizeof(struct usb_device_descriptor); + debug("USB_DT_DEVICE request\n"); + srcptr = &descriptor.device; + srclen = 0x12; break; case USB_DT_CONFIG: - srcptr = &config; - srclen = sizeof(config) + - sizeof(struct usb_interface_descriptor) + - sizeof(struct usb_hub_descriptor); + debug("USB_DT_CONFIG config\n"); + srcptr = &descriptor.config; + srclen = 0x19; break; case USB_DT_STRING: + debug("USB_DT_STRING config\n"); switch (le16_to_cpu(req->value) & 0xff) { case 0: /* Language */ srcptr = "\4\3\1\0"; @@ -400,29 +582,34 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, srclen = 42; break; default: + debug("unknown value DT_STRING %x\n", + le16_to_cpu(req->value)); goto unknown; } break; default: - debug("unknown value %x", le16_to_cpu(req->value)); + debug("unknown value %x\n", le16_to_cpu(req->value)); goto unknown; } break; case USB_REQ_GET_DESCRIPTOR | ((USB_DIR_IN | USB_RT_HUB) << 8): switch (le16_to_cpu(req->value) >> 8) { case USB_DT_HUB: - srcptr = &hub; - srclen = sizeof(hub); + debug("USB_DT_HUB config\n"); + srcptr = &descriptor.hub; + srclen = 0x8; break; default: - debug("unknown value %x", le16_to_cpu(req->value)); + debug("unknown value %x\n", le16_to_cpu(req->value)); goto unknown; } break; case USB_REQ_SET_ADDRESS | (USB_RECIP_DEVICE << 8): + debug("USB_REQ_SET_ADDRESS\n"); rootdev = le16_to_cpu(req->value); break; case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: + debug("USB_REQ_SET_CONFIGURATION\n"); /* Nothing to do */ break; case USB_REQ_GET_STATUS | ((USB_DIR_IN | USB_RT_HUB) << 8): @@ -431,10 +618,9 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, srcptr = tmpbuf; srclen = 2; break; - case DeviceRequest | USB_REQ_GET_STATUS: + case USB_REQ_GET_STATUS | ((USB_RT_PORT | USB_DIR_IN) << 8): memset(tmpbuf, 0, 4); - reg = le32_to_cpu(hcor->or_portsc[le16_to_cpu(req->index) - - 1]); + reg = ehci_readl(status_reg); if (reg & EHCI_PS_CS) tmpbuf[0] |= USB_PORT_STAT_CONNECTION; if (reg & EHCI_PS_PE) @@ -443,11 +629,37 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, tmpbuf[0] |= USB_PORT_STAT_SUSPEND; if (reg & EHCI_PS_OCA) tmpbuf[0] |= USB_PORT_STAT_OVERCURRENT; - if (reg & EHCI_PS_PR) - tmpbuf[0] |= USB_PORT_STAT_RESET; + if (reg & EHCI_PS_PR && + (portreset & (1 << le16_to_cpu(req->index)))) { + int ret; + /* force reset to complete */ + reg = reg & ~(EHCI_PS_PR | EHCI_PS_CLEAR); + ehci_writel(status_reg, reg); + ret = handshake(status_reg, EHCI_PS_PR, 0, 2 * 1000); + if (!ret) + tmpbuf[0] |= USB_PORT_STAT_RESET; + else + printf("port(%d) reset error\n", + le16_to_cpu(req->index) - 1); + } if (reg & EHCI_PS_PP) tmpbuf[1] |= USB_PORT_STAT_POWER >> 8; - tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8; + + if (ehci_is_TDI()) { + switch ((reg >> 26) & 3) { + case 0: + break; + case 1: + tmpbuf[1] |= USB_PORT_STAT_LOW_SPEED >> 8; + break; + case 2: + default: + tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8; + break; + } + } else { + tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8; + } if (reg & EHCI_PS_CSC) tmpbuf[2] |= USB_PORT_STAT_C_CONNECTION; @@ -457,92 +669,101 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, tmpbuf[2] |= USB_PORT_STAT_C_OVERCURRENT; if (portreset & (1 << le16_to_cpu(req->index))) tmpbuf[2] |= USB_PORT_STAT_C_RESET; + srcptr = tmpbuf; srclen = 4; break; - case DeviceOutRequest | USB_REQ_SET_FEATURE: - reg = le32_to_cpu(hcor->or_portsc[le16_to_cpu(req->index) - 1]); + case USB_REQ_SET_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8): + reg = ehci_readl(status_reg); reg &= ~EHCI_PS_CLEAR; switch (le16_to_cpu(req->value)) { + case USB_PORT_FEAT_ENABLE: + reg |= EHCI_PS_PE; + ehci_writel(status_reg, reg); + break; case USB_PORT_FEAT_POWER: - reg |= EHCI_PS_PP; + if (HCS_PPC(ehci_readl(&hccr->cr_hcsparams))) { + reg |= EHCI_PS_PP; + ehci_writel(status_reg, reg); + } break; case USB_PORT_FEAT_RESET: - if (EHCI_PS_IS_LOWSPEED(reg)) { + if ((reg & (EHCI_PS_PE | EHCI_PS_CS)) == EHCI_PS_CS && + !ehci_is_TDI() && + EHCI_PS_IS_LOWSPEED(reg)) { /* Low speed device, give up ownership. */ + debug("port %d low speed --> companion\n", + req->index - 1); reg |= EHCI_PS_PO; + ehci_writel(status_reg, reg); break; + } else { + reg |= EHCI_PS_PR; + reg &= ~EHCI_PS_PE; + ehci_writel(status_reg, reg); + /* + * caller must wait, then call GetPortStatus + * usb 2.0 specification say 50 ms resets on + * root + */ + wait_ms(50); + portreset |= 1 << le16_to_cpu(req->index); } - /* Start reset sequence. */ - reg &= ~EHCI_PS_PE; - reg |= EHCI_PS_PR; - hcor->or_portsc[le16_to_cpu(req->index) - 1] = - cpu_to_le32(reg); - /* Wait for reset to complete. */ - udelay(500000); - /* Terminate reset sequence. */ - reg &= ~EHCI_PS_PR; - /* TODO: is it only fsl chip that requires this - * manual setting of port enable? - */ - reg |= EHCI_PS_PE; - hcor->or_portsc[le16_to_cpu(req->index) - 1] = - cpu_to_le32(reg); - /* Wait for HC to complete reset. */ - udelay(2000); - reg = - le32_to_cpu(hcor->or_portsc[le16_to_cpu(req->index) - - 1]); - reg &= ~EHCI_PS_CLEAR; - if ((reg & EHCI_PS_PE) == 0) { - /* Not a high speed device, give up - * ownership. */ - reg |= EHCI_PS_PO; - break; - } - portreset |= 1 << le16_to_cpu(req->index); break; default: - debug("unknown feature %x", le16_to_cpu(req->value)); + debug("unknown feature %x\n", le16_to_cpu(req->value)); goto unknown; } - hcor->or_portsc[le16_to_cpu(req->index) - 1] = - cpu_to_le32(reg); + /* unblock posted writes */ + ehci_readl(&hcor->or_usbcmd); break; - case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: - reg = le32_to_cpu(hcor->or_portsc[le16_to_cpu(req->index) - 1]); - reg &= ~EHCI_PS_CLEAR; + case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8): + reg = ehci_readl(status_reg); switch (le16_to_cpu(req->value)) { case USB_PORT_FEAT_ENABLE: reg &= ~EHCI_PS_PE; break; + case USB_PORT_FEAT_C_ENABLE: + reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_PE; + break; + case USB_PORT_FEAT_POWER: + if (HCS_PPC(ehci_readl(&hccr->cr_hcsparams))) + reg = reg & ~(EHCI_PS_CLEAR | EHCI_PS_PP); case USB_PORT_FEAT_C_CONNECTION: - reg |= EHCI_PS_CSC; + reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_CSC; + break; + case USB_PORT_FEAT_OVER_CURRENT: + reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_OCC; break; case USB_PORT_FEAT_C_RESET: portreset &= ~(1 << le16_to_cpu(req->index)); break; default: - debug("unknown feature %x", le16_to_cpu(req->value)); + debug("unknown feature %x\n", le16_to_cpu(req->value)); goto unknown; } - hcor->or_portsc[le16_to_cpu(req->index) - 1] = - cpu_to_le32(reg); + ehci_writel(status_reg, reg); + /* unblock posted write */ + ehci_readl(&hcor->or_usbcmd); break; default: - debug("Unknown request"); + debug("Unknown request\n"); goto unknown; } + wait_ms(1); len = min3(srclen, le16_to_cpu(req->length), length); if (srcptr != NULL && len > 0) memcpy(buffer, srcptr, len); + else + debug("Len is 0\n"); + dev->act_len = len; dev->status = 0; return 0; unknown: - debug("requesttype=%x, request=%x, value=%x, index=%x, length=%x", + debug("requesttype=%x, request=%x, value=%x, index=%x, length=%x\n", req->requesttype, req->request, le16_to_cpu(req->value), le16_to_cpu(req->index), le16_to_cpu(req->length)); @@ -559,34 +780,59 @@ int usb_lowlevel_stop(void) int usb_lowlevel_init(void) { uint32_t reg; + uint32_t cmd; if (ehci_hcd_init() != 0) return -1; + /* EHCI spec section 4.1 */ + if (ehci_reset() != 0) + return -1; + +#if defined(CONFIG_EHCI_HCD_INIT_AFTER_RESET) + if (ehci_hcd_init() != 0) + return -1; +#endif + /* Set head of reclaim list */ memset(&qh_list, 0, sizeof(qh_list)); - qh_list.qh_link = cpu_to_le32((uint32_t)&qh_list | QH_LINK_TYPE_QH); - qh_list.qh_endpt1 = cpu_to_le32((1 << 15) | (USB_SPEED_HIGH << 12)); - qh_list.qh_curtd = cpu_to_le32(QT_NEXT_TERMINATE); - qh_list.qh_overlay.qt_next = cpu_to_le32(QT_NEXT_TERMINATE); - qh_list.qh_overlay.qt_altnext = cpu_to_le32(QT_NEXT_TERMINATE); - qh_list.qh_overlay.qt_token = cpu_to_le32(0x40); + qh_list.qh_link = cpu_to_hc32((uint32_t)&qh_list | QH_LINK_TYPE_QH); + qh_list.qh_endpt1 = cpu_to_hc32((1 << 15) | (USB_SPEED_HIGH << 12)); + qh_list.qh_curtd = cpu_to_hc32(QT_NEXT_TERMINATE); + qh_list.qh_overlay.qt_next = cpu_to_hc32(QT_NEXT_TERMINATE); + qh_list.qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); + qh_list.qh_overlay.qt_token = cpu_to_hc32(0x40); /* Set async. queue head pointer. */ - hcor->or_asynclistaddr = cpu_to_le32((uint32_t)&qh_list); + ehci_writel(&hcor->or_asynclistaddr, (uint32_t)&qh_list); + + reg = ehci_readl(&hccr->cr_hcsparams); + descriptor.hub.bNbrPorts = HCS_N_PORTS(reg); + printf("Register %x NbrPorts %d\n", reg, descriptor.hub.bNbrPorts); + /* Port Indicators */ + if (HCS_INDICATOR(reg)) + descriptor.hub.wHubCharacteristics |= 0x80; + /* Port Power Control */ + if (HCS_PPC(reg)) + descriptor.hub.wHubCharacteristics |= 0x01; - reg = le32_to_cpu(hccr->cr_hcsparams); - hub.bNbrPorts = reg & 0xf; - if (reg & 0x10000) /* Port Indicators */ - hub.wHubCharacteristics |= 0x80; - if (reg & 0x10) /* Port Power Control */ - hub.wHubCharacteristics |= 0x01; + /* Start the host controller. */ + cmd = ehci_readl(&hcor->or_usbcmd); + /* Philips, Intel, and maybe others need CMD_RUN before the + * root hub will detect new devices (why?); NEC doesn't */ + cmd &= ~(CMD_LRESET|CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET); + cmd |= CMD_RUN; + ehci_writel(&hcor->or_usbcmd, cmd); /* take control over the ports */ - hcor->or_configflag |= cpu_to_le32(1); - - /* Start the host controller. */ - hcor->or_usbcmd |= cpu_to_le32(1); + cmd = ehci_readl(&hcor->or_configflag); + cmd |= FLAG_CF; + ehci_writel(&hcor->or_configflag, cmd); + /* unblock posted write */ + cmd = ehci_readl(&hcor->or_usbcmd); + wait_ms(5); + reg = HC_VERSION(ehci_readl(&hccr->cr_capbase)); + printf("USB EHCI %x.%02x\n", reg >> 8, reg & 0xff); rootdev = 0;