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Date: Mon, 5 Nov 2007 14:08:42 +0100
From: Robert Schwebel <r.schwebel@...gutronix.de>
To: netdev@...r.kernel.org
Subject: [PATCH] netX: update ethernet driver to firmware 1007
From: Sascha Hauer <s.hauer@...gutronix.de>
The ethernet firmware revision 1007 fixes several issues with the
network chip. This update makes the driver work with that firmware
revision.
Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
drivers/net/netx-eth.c | 91 +++++++++++++++++++++++++++++++++++++++----------
1 file changed, 73 insertions(+), 18 deletions(-)
Index: drivers/net/netx-eth.c
===================================================================
--- drivers/net/netx-eth.c.orig
+++ drivers/net/netx-eth.c
@@ -71,18 +71,29 @@
#define FIFO_PTR_ERROR_MASK (0xf << 28)
#define ISR_LINK_STATUS_CHANGE (1<<4)
-#define ISR_IND_LO (1<<3)
-#define ISR_CON_LO (1<<2)
-#define ISR_IND_HI (1<<1)
-#define ISR_CON_HI (1<<0)
+#define ISR_IND_LO (priv->xc_version >= 1007 ? (1<<1) : (1<<3))
+#define ISR_CON_LO (priv->xc_version >= 1007 ? (1<<3) : (1<<2))
+#define ISR_IND_HI (priv->xc_version >= 1007 ? (1<<0) : (1<<1))
+#define ISR_CON_HI (priv->xc_version >= 1007 ? (1<<2) : (1<<0))
#define ETH_MAC_LOCAL_CONFIG 0x1560
-#define ETH_MAC_4321 0x1564
-#define ETH_MAC_65 0x1568
+
+/* Firmware >= 1.007 */
+#define ETH_MAC_IRQ_ENABLE 0x1564
+#define IRQ_ENABLE_IND_HI (1<<0)
+#define IRQ_ENABLE_IND_LO (1<<1)
+#define IRQ_ENABLE_CON_HI (1<<2)
+#define IRQ_ENABLE_CON_LO (1<<3)
+#define IRQ_ENABLE_LINK_STATUS (1<<4)
+
+#define ETH_MAC_4321 (0x1564 + ((priv->xc_version >= 1007) ? 4 : 0))
+#define ETH_MAC_65 (0x1568 + ((priv->xc_version >= 1007) ? 4 : 0))
#define MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT 16
#define MAC_TRAFFIC_CLASS_ARRANGEMENT_MASK (0xf<<MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT)
#define MAC_TRAFFIC_CLASS_ARRANGEMENT(x) (((x)<<MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT) & MAC_TRAFFIC_CLASS_ARRANGEMENT_MASK)
+
+/* Firmware < 1.007 */
#define LOCAL_CONFIG_LINK_STATUS_IRQ_EN (1<<24)
#define LOCAL_CONFIG_CON_LO_IRQ_EN (1<<23)
#define LOCAL_CONFIG_CON_HI_IRQ_EN (1<<22)
@@ -101,6 +112,8 @@ struct netx_eth_priv {
u32 msg_enable;
struct xc *xc;
spinlock_t lock;
+
+ int xc_version;
};
static void netx_eth_set_multicast_list(struct net_device *ndev)
@@ -128,8 +141,8 @@ netx_eth_hard_start_xmit(struct sk_buff
FIFO_PTR_FRAMELEN(len));
ndev->trans_start = jiffies;
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
+ ndev->stats.tx_packets++;
+ ndev->stats.tx_bytes += skb->len;
netif_stop_queue(ndev);
spin_unlock_irq(&priv->lock);
@@ -155,7 +168,7 @@ static void netx_eth_receive(struct net_
if (unlikely(skb == NULL)) {
printk(KERN_NOTICE "%s: Low memory, packet dropped.\n",
ndev->name);
- dev->stats.rx_dropped++;
+ ndev->stats.rx_dropped++;
return;
}
@@ -169,8 +182,8 @@ static void netx_eth_receive(struct net_
ndev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, ndev);
netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += len;
+ ndev->stats.rx_packets++;
+ ndev->stats.rx_bytes += len;
}
static irqreturn_t
@@ -226,13 +239,23 @@ static int netx_eth_open(struct net_devi
ndev->dev_addr[5]<<8,
priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_65);
- writel(LOCAL_CONFIG_LINK_STATUS_IRQ_EN |
- LOCAL_CONFIG_CON_LO_IRQ_EN |
- LOCAL_CONFIG_CON_HI_IRQ_EN |
- LOCAL_CONFIG_IND_LO_IRQ_EN |
- LOCAL_CONFIG_IND_HI_IRQ_EN,
- priv->xpec_base + NETX_XPEC_RAM_START_OFS +
- ETH_MAC_LOCAL_CONFIG);
+ if (priv->xc_version >= 1007) {
+ writel(IRQ_ENABLE_LINK_STATUS |
+ IRQ_ENABLE_CON_LO |
+ IRQ_ENABLE_CON_HI |
+ IRQ_ENABLE_IND_LO |
+ IRQ_ENABLE_IND_HI,
+ priv->xpec_base + NETX_XPEC_RAM_START_OFS +
+ ETH_MAC_IRQ_ENABLE);
+ } else {
+ writel(LOCAL_CONFIG_LINK_STATUS_IRQ_EN |
+ LOCAL_CONFIG_CON_LO_IRQ_EN |
+ LOCAL_CONFIG_CON_HI_IRQ_EN |
+ LOCAL_CONFIG_IND_LO_IRQ_EN |
+ LOCAL_CONFIG_IND_HI_IRQ_EN,
+ priv->xpec_base + NETX_XPEC_RAM_START_OFS +
+ ETH_MAC_LOCAL_CONFIG);
+ }
mii_check_media(&priv->mii, netif_msg_link(priv), 1);
netif_start_queue(ndev);
@@ -249,6 +272,9 @@ static int netx_eth_close(struct net_dev
writel(0,
priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_LOCAL_CONFIG);
+ writel(0,
+ priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_IRQ_ENABLE);
+
free_irq(ndev->irq, ndev);
return 0;
@@ -303,6 +329,30 @@ netx_eth_phy_write(struct net_device *nd
while (readl(NETX_MIIMU) & MIIMU_SNRDY);
}
+static int netx_eth_get_xc_version(struct net_device *ndev)
+{
+ struct netx_eth_priv *priv = netdev_priv(ndev);
+ unsigned long val;
+
+ val = readl(priv->xc->xmac_base + 0x48);
+
+ switch (val) {
+ case 0x20c000c9:
+ priv->xc_version = 1006;
+ break;
+ case 0x0137fe41:
+ priv->xc_version = 1007;
+ break;
+ default:
+ printk(KERN_ERR "%s: could not determine firmware version: 0x%08lx\n", ndev->name, val);
+ return -1;
+ }
+
+ printk(KERN_INFO "%s: found firmware version %d\n", ndev->name, priv->xc_version);
+
+ return 0;
+}
+
static int netx_eth_enable(struct net_device *ndev)
{
struct netx_eth_priv *priv = netdev_priv(ndev);
@@ -335,6 +385,9 @@ static int netx_eth_enable(struct net_de
* loaded the firmware for us
*/
if (running) {
+ if (netx_eth_get_xc_version(ndev))
+ return -ENODEV;
+
/* get Node Address from hardware */
mac4321 = readl(priv->xpec_base +
NETX_XPEC_RAM_START_OFS + ETH_MAC_4321);
@@ -352,6 +405,8 @@ static int netx_eth_enable(struct net_de
printk(CARDNAME ": requesting firmware failed\n");
return -ENODEV;
}
+ if (netx_eth_get_xc_version(ndev))
+ return -ENODEV;
}
xc_reset(priv->xc);
-
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