/*-
* Copyright (c) 2007-2008, Juniper Networks, Inc.
* Copyright (c) 2008, Excito Elektronik i Skåne AB
+ * Copyright (c) 2008, Michael Trimarchi <trimarchimichael@yahoo.it>
+ *
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
-#define DEBUG
#include <common.h>
#include <asm/byteorder.h>
#include <usb.h>
},
};
+#if defined(CONFIG_EHCI_IS_TDI)
+#define ehci_is_TDI() (1)
+#else
+#define ehci_is_TDI() (0)
+#endif
+
static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int msec)
{
uint32_t result;
cmd = ehci_readl(&hcor->or_usbcmd);
cmd |= CMD_RESET;
ehci_writel(&hcor->or_usbcmd, cmd);
- ret = handshake(&hcor->or_usbcmd, CMD_RESET, 0, 250);
+ ret = handshake((uint32_t *)&hcor->or_usbcmd, CMD_RESET, 0, 250);
if (ret < 0) {
printf("EHCI fail to reset\n");
goto out;
}
-#if defined CONFIG_EHCI_IS_TDI
+#if defined(CONFIG_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
+#if defined(CONFIG_EHCI_MMIO_BIG_ENDIAN)
tmp |= USBMODE_BE;
#endif
ehci_writel(reg_ptr, tmp);
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;
debug("req=%u (%#x), type=%u (%#x), value=%u, index=%u\n",
break;
case USB_REQ_GET_STATUS | ((USB_RT_PORT | USB_DIR_IN) << 8):
memset(tmpbuf, 0, 4);
- reg = ehci_readl(&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)
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);
+ 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;
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 USB_REQ_SET_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
- reg = ehci_readl(&hcor->or_portsc[le16_to_cpu(req->index) - 1]);
+ 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:
- debug("USB FEAT RESET\n");
- 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;
- ehci_writel(&hcor->or_portsc[
- le16_to_cpu(req->index) - 1], reg);
- /* Wait for reset to complete. */
- wait_ms(500);
- /* 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;
- ehci_writel(&hcor->or_portsc[
- le16_to_cpu(req->index) - 1], reg);
- /* Wait for HC to complete reset. */
- wait_ms(10);
- reg =
- ehci_readl(&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\n", le16_to_cpu(req->value));
goto unknown;
}
- ehci_writel(&hcor->or_portsc[le16_to_cpu(req->index) - 1], reg);
+ /* unblock posted writes */
+ ehci_readl(&hcor->or_usbcmd);
break;
case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
- reg = ehci_readl(&hcor->or_portsc[le16_to_cpu(req->index) - 1]);
- reg &= ~EHCI_PS_CLEAR;
+ 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 |= EHCI_PS_OCC;
+ reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_OCC;
break;
case USB_PORT_FEAT_C_RESET:
portreset &= ~(1 << le16_to_cpu(req->index));
debug("unknown feature %x\n", le16_to_cpu(req->value));
goto unknown;
}
- ehci_writel(&hcor->or_portsc[le16_to_cpu(req->index) - 1], reg);
+ ehci_writel(status_reg, reg);
+ /* unblock posted write */
+ ehci_readl(&hcor->or_usbcmd);
break;
default:
debug("Unknown request\n");
reg = ehci_readl(&hccr->cr_hcsparams);
descriptor.hub.bNbrPorts = HCS_N_PORTS(reg);
printf("Register %x NbrPorts %d\n", reg, descriptor.hub.bNbrPorts);
- if (reg & 0x10000) /* Port Indicators */
+ /* Port Indicators */
+ if (HCS_INDICATOR(reg))
descriptor.hub.wHubCharacteristics |= 0x80;
- if (reg & 0x10) /* Port Power Control */
+ /* Port Power Control */
+ if (HCS_PPC(reg))
descriptor.hub.wHubCharacteristics |= 0x01;
/* Start the host controller. */
cmd = ehci_readl(&hcor->or_configflag);
cmd |= FLAG_CF;
ehci_writel(&hcor->or_configflag, cmd);
- /* unblock posted writes */
+ /* 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;
projects / karo-tx-uboot.git / blobdiff