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net: asix: fix operation without eeprom 

This patch fixes operation of our on-board AX88772B chip without EEPROM
but with a ethaddr coming from the regular U-Boot environment. This is
a forward port of some remaining parts initially implemented by
Antmicro.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marcel Ziswiler 2015-08-05 17:16:59 +02:00 committed by Marek Vasut
parent ab27f30b6e
commit 147271209a
1 changed files with 34 additions and 6 deletions
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40
drivers/usb/eth/asix.c
View File

@ -1,6 +1,8 @@
/*
* Copyright (c) 2011 The Chromium OS Authors.
*
* Patched for AX88772B by Antmicro Ltd <www.antmicro.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -64,8 +66,11 @@
AX_MEDIUM_AC | AX_MEDIUM_RE)
/* AX88772 & AX88178 RX_CTL values */
#define AX_RX_CTL_SO 0x0080
#define AX_RX_CTL_AB 0x0008
#define AX_RX_CTL_RH2M 0x0200 /* 32-bit aligned RX IP header */
#define AX_RX_CTL_RH1M 0x0100 /* Enable RX header format type 1 */
#define AX_RX_CTL_SO 0x0080
#define AX_RX_CTL_AB 0x0008
#define AX_RX_HEADER_DEFAULT (AX_RX_CTL_RH1M | AX_RX_CTL_RH2M)
#define AX_DEFAULT_RX_CTL \
(AX_RX_CTL_SO | AX_RX_CTL_AB)
@ -92,6 +97,8 @@
#define FLAG_TYPE_AX88772B (1U << 2)
#define FLAG_EEPROM_MAC (1U << 3) /* initial mac address in eeprom */
#define ASIX_USB_VENDOR_ID 0x0b95
#define AX88772B_USB_PRODUCT_ID 0x772b
/* driver private */
struct asix_private {
@ -418,15 +425,23 @@ static int asix_basic_reset(struct ueth_data *dev)
return 0;
}
static int asix_init_common(struct ueth_data *dev)
static int asix_init_common(struct ueth_data *dev, uint8_t *enetaddr)
{
int timeout = 0;
#define TIMEOUT_RESOLUTION 50 /* ms */
int link_detected;
u32 ctl = AX_DEFAULT_RX_CTL;
debug("** %s()\n", __func__);
if (asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL) < 0)
if ((dev->pusb_dev->descriptor.idVendor == ASIX_USB_VENDOR_ID) &&
(dev->pusb_dev->descriptor.idProduct == AX88772B_USB_PRODUCT_ID))
ctl |= AX_RX_HEADER_DEFAULT;
if (asix_write_rx_ctl(dev, ctl) < 0)
goto out_err;
if (asix_write_hwaddr_common(dev, enetaddr) < 0)
goto out_err;
do {
@ -447,6 +462,12 @@ static int asix_init_common(struct ueth_data *dev)
goto out_err;
}
/*
* Wait some more to avoid timeout on first transfer
* (e.g. EHCI timed out on TD - token=0x8008d80)
*/
mdelay(25);
return 0;
out_err:
return -1;
@ -488,7 +509,7 @@ static int asix_init(struct eth_device *eth, bd_t *bd)
{
struct ueth_data *dev = (struct ueth_data *)eth->priv;
return asix_init_common(dev);
return asix_init_common(dev, eth->enetaddr);
}
static int asix_send(struct eth_device *eth, void *packet, int length)
@ -550,6 +571,12 @@ static int asix_recv(struct eth_device *eth)
return -1;
}
if ((dev->pusb_dev->descriptor.idVendor ==
ASIX_USB_VENDOR_ID) &&
(dev->pusb_dev->descriptor.idProduct ==
AX88772B_USB_PRODUCT_ID))
buf_ptr += 2;
/* Notify net stack */
net_process_received_packet(buf_ptr + sizeof(packet_len),
packet_len);
@ -729,9 +756,10 @@ int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
#ifdef CONFIG_DM_ETH
static int asix_eth_start(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_platdata(dev);
struct asix_private *priv = dev_get_priv(dev);
return asix_init_common(&priv->ueth);
return asix_init_common(&priv->ueth, pdata->enetaddr);
}
void asix_eth_stop(struct udevice *dev)