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authorJohn Crispin <john@openwrt.org>2009-10-24 20:58:41 +0000
committerJohn Crispin <john@openwrt.org>2009-10-24 20:58:41 +0000
commiteff75d868bc1271e5f34d214012efff7674d1da0 (patch)
treef6569a952869115b4759cf795840d58b7e83c6a9
parent5c399c6f20d521b9a7e604a3227b6d779581b806 (diff)
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make ethernet a platform device
SVN-Revision: 18135
-rw-r--r--target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h15
-rw-r--r--target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c28
-rw-r--r--target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h1
-rw-r--r--target/linux/ramips/files/drivers/net/ramips.c77
4 files changed, 92 insertions, 29 deletions
diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h
index d468967..27cf6df 100644
--- a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h
+++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/eth.h
@@ -21,6 +21,8 @@
#define RAMIPS_ETH_H
#include <linux/mii.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
#define NUM_RX_DESC 256
#define NUM_TX_DESC 256
@@ -35,7 +37,6 @@
#define RAMIPS_FE_RESET 0x34
#define RAMIPS_FE_RESET_BIT BIT(21)
-
/* interrupt bitd */
#define RAMIPS_CNT_PPE_AF BIT(31)
#define RAMIPS_CNT_GDM_AF BIT(29)
@@ -161,7 +162,6 @@
#define RAMIPS_US_CYC_CNT_SHIFT 0x8
#define RAMIPS_US_CYC_CNT_DIVISOR 1000000
-
#define RX_DMA_PLEN0(x) ((x >> 16) & 0x3fff)
#define RX_DMA_LSO BIT(30)
#define RX_DMA_DONE BIT(31)
@@ -187,6 +187,15 @@ struct ramips_tx_dma {
unsigned int txd4;
};
+struct ramips_eth_platform_data
+{
+ unsigned char mac[6];
+ unsigned int base_addr;
+ void (*reset_fe)(void);
+ int min_pkt_len;
+ int irq;
+};
+
struct raeth_priv
{
unsigned int phy_rx;
@@ -199,6 +208,8 @@ struct raeth_priv
unsigned int skb_free_idx;
struct net_device_stats stat;
+
+ struct ramips_eth_platform_data *plat;
};
#endif
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c
index 5dd1022..6155b9f 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c
@@ -19,6 +19,8 @@
#include <asm/mach-ralink/rt305x_regs.h>
#include "devices.h"
+#include <eth.h>
+
static struct resource rt305x_flash0_resources[] = {
{
.flags = IORESOURCE_MEM,
@@ -94,3 +96,29 @@ void __init rt305x_register_flash(unsigned int id,
platform_device_register(pdev);
rt305x_flash_instance++;
}
+
+static void rt305x_fe_reset(void)
+{
+ rt305x_sysc_wr(RAMIPS_FE_RESET_BIT, RAMIPS_FE_RESET);
+ rt305x_sysc_wr(0, RAMIPS_FE_RESET);
+}
+
+static struct ramips_eth_platform_data ramips_eth_data = {
+ .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
+ .base_addr = RT305X_FE_BASE,
+ .irq = RT305X_CPU_IRQ_FE,
+ .reset_fe = rt305x_fe_reset,
+ .min_pkt_len = 64
+};
+
+static struct platform_device rt305x_eth_device = {
+ .name = "ramips_eth",
+ .dev = {
+ .platform_data = (void *) &ramips_eth_data,
+ }
+};
+
+void __init rt305x_register_ethernet(void)
+{
+ platform_device_register(&rt305x_eth_device);
+}
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h
index 0a90b3a..3d6210e 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h
@@ -15,6 +15,7 @@ struct physmap_flash_data;
extern void rt305x_register_flash(unsigned int id,
struct physmap_flash_data *pdata) __init;
+extern void rt305x_register_ethernet(void);
#endif /* __RT305X_DEVICES_H */
diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index 46def40..42d38cc 100644
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -25,12 +25,11 @@
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/if_ether.h>
+#include <linux/platform_device.h>
#include <asm/uaccess.h>
#include <net/sock.h>
#include <asm/uaccess.h>
-#include <rt305x.h>
-#include <rt305x_regs.h>
#include <eth.h>
#define TX_TIMEOUT (20 * HZ / 100)
@@ -112,19 +111,19 @@ ramips_eth_hard_start_xmit(struct sk_buff* skb, struct net_device *dev)
unsigned long tx;
unsigned int tx_next;
-#ifdef CONFIG_RALINK_RT305X
-#define MIN_PKT_LEN 64
- if(skb->len < MIN_PKT_LEN)
- {
- if(skb_padto(skb, MIN_PKT_LEN))
+ if(priv->plat->min_pkt_len)
+ {
+ if(skb->len < priv->plat->min_pkt_len)
{
- printk(KERN_ERR "ramips_eth: skb_padto failed\n");
- kfree_skb(skb);
- return 0;
- }
- skb_put(skb, MIN_PKT_LEN - skb->len);
- }
-#endif
+ if(skb_padto(skb, priv->plat->min_pkt_len))
+ {
+ printk(KERN_ERR "ramips_eth: skb_padto failed\n");
+ kfree_skb(skb);
+ return 0;
+ }
+ skb_put(skb, priv->plat->min_pkt_len - skb->len);
+ }
+ }
dev->trans_start = jiffies;
dma_cache_wback_inv((unsigned long)skb->data, skb->len);
tx = ramips_fe_rr(RAMIPS_TX_CTX_IDX0);
@@ -321,16 +320,13 @@ ramips_eth_stop(struct net_device *dev)
int __init
ramips_eth_probe(struct net_device *dev)
{
+ struct raeth_priv *priv = (struct raeth_priv*)netdev_priv(dev);
struct sockaddr addr;
- unsigned char mac_addr01234[5] = {0x00, 0x0C, 0x43, 0x28, 0x80};
-
- /* reset frame engine */
- rt305x_sysc_wr(RAMIPS_FE_RESET_BIT, RAMIPS_FE_RESET);
- rt305x_sysc_wr(0, RAMIPS_FE_RESET);
+ BUG(!priv->plat->reset_fe);
+ priv->plat->reset_fe();
net_srandom(jiffies);
- memcpy(addr.sa_data, mac_addr01234, 5);
- addr.sa_data[5] = net_random()&0xFF;
+ memcpy(addr.sa_data, priv->plat->mac, 6);
ramips_eth_set_mac_addr(dev, &addr);
ether_setup(dev);
@@ -345,20 +341,24 @@ ramips_eth_probe(struct net_device *dev)
return 0;
}
-int __init
-ramips_eth_init(void)
+static int
+ramips_eth_plat_probe(struct platform_device *plat)
{
- ramips_fe_base = ioremap_nocache(RT305X_FE_BASE, PAGE_SIZE);
+ struct raeth_priv *priv;
+
+ ramips_fe_base = ioremap_nocache(plat->base_addr, PAGE_SIZE);
if(!ramips_fe_base)
return -ENOMEM;
ramips_dev = alloc_etherdev(sizeof(struct raeth_priv));
if(!ramips_dev)
return -ENOMEM;
strcpy(ramips_dev->name, "eth%d");
- ramips_dev->irq = RT305X_CPU_IRQ_FE;
+ ramips_dev->irq = plat->irq;
ramips_dev->addr_len = ETH_ALEN;
ramips_dev->base_addr = (unsigned long)ramips_fe_base;
ramips_dev->init = ramips_eth_probe;
+ priv = (struct raeth_priv*)netdev_priv(ramips_dev);
+ priv->plat = (struct ramips_eth_platform_data*)plat->dev.platform_data;
if(register_netdev(ramips_dev))
{
printk(KERN_ERR "ramips_eth: error bringing up device\n");
@@ -371,12 +371,35 @@ ramips_eth_init(void)
return 0;
}
-void
-ramips_eth_cleanup(void)
+static int
+ramips_eth_plat_remove(struct platform_device *plat)
{
unregister_netdev(ramips_dev);
free_netdev(ramips_dev);
printk(KERN_INFO "ramips_eth: unloaded");
+ return 0;
+}
+
+static struct platform_driver ramips_eth_driver = {
+ .probe = ramips_eth_plat_probe,
+ .remove = ramips_eth_plat_remove,
+ .driver = {
+ .name = "ramips_eth",
+ .owner = THIS_MODULE,
+ },
+};
+
+int __init ramips_eth_init(void)
+{
+ int ret = platform_driver_register(&ramips_eth_driver);
+ if (ret)
+ printk(KERN_INFO "ramips_eth: Error registering platfom driver!");
+ return ret;
+}
+
+static void __exit ramips_eth_cleanup(void)
+{
+ platform_driver_unregister(&ramips_eth_driver);
}
module_init(ramips_eth_init);