* Patch by André Schwarz, 8 Dec 2003:
fixes for Davicom DM9102A Ethernet Chip (#define CONFIG_TULIP_FIX_DAVICOM):
- TX and RX deskriptors must be quad-word aligned
- does not work with only one TX deskriptor
- standard reset method does not work
* Patch by Masami Komiya, 08 Dec 2003:
add RTL8139 ethernet driver
* Patches by Ed Okerson, 07 Dec 2003:
- fix ethernet for the AU1x00 processors in little-endian mode.
- extend memsetup.S for the AU1x00 processors in BE and LE modes
diff --git a/drivers/dc2114x.c b/drivers/dc2114x.c
index 75bc618..9c7b5e9 100644
--- a/drivers/dc2114x.c
+++ b/drivers/dc2114x.c
@@ -98,6 +98,15 @@
#define POLL_DEMAND 1
+#ifdef CONFIG_TULIP_FIX_DAVICOM
+#define RESET_DM9102(dev) {\
+ unsigned long i;\
+ i=INL(dev, 0x0);\
+ udelay(1000);\
+ OUTL(dev, i | BMR_SWR, DE4X5_BMR);\
+ udelay(1000);\
+}
+#else
#define RESET_DE4X5(dev) {\
int i;\
i=INL(dev, DE4X5_BMR);\
@@ -109,6 +118,7 @@
for (i=0;i<5;i++) {INL(dev, DE4X5_BMR); udelay(10000);}\
udelay(1000);\
}
+#endif
#define START_DE4X5(dev) {\
s32 omr; \
@@ -125,7 +135,11 @@
}
#define NUM_RX_DESC PKTBUFSRX
-#define NUM_TX_DESC 1 /* Number of TX descriptors */
+#ifndef CONFIG_TULIP_FIX_DAVICOM
+ #define NUM_TX_DESC 1 /* Number of TX descriptors */
+#else
+ #define NUM_TX_DESC 4
+#endif
#define RX_BUFF_SZ PKTSIZE_ALIGN
#define TOUT_LOOP 1000000
@@ -133,7 +147,6 @@
#define SETUP_FRAME_LEN 192
#define ETH_ALEN 6
-
struct de4x5_desc {
volatile s32 status;
u32 des1;
@@ -141,8 +154,8 @@
u32 next;
};
-static struct de4x5_desc rx_ring[NUM_RX_DESC]; /* RX descriptor ring */
-static struct de4x5_desc tx_ring[NUM_TX_DESC]; /* TX descriptor ring */
+static struct de4x5_desc rx_ring[NUM_RX_DESC] __attribute__ ((aligned(32))); /* RX descriptor ring */
+static struct de4x5_desc tx_ring[NUM_TX_DESC] __attribute__ ((aligned(32))); /* TX descriptor ring */
static int rx_new; /* RX descriptor ring pointer */
static int tx_new; /* TX descriptor ring pointer */
@@ -188,6 +201,9 @@
static struct pci_device_id supported[] = {
{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST },
{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142 },
+#ifdef CONFIG_TULIP_FIX_DAVICOM
+ { PCI_VENDOR_ID_DAVICOM, PCI_DEVICE_ID_DAVICOM_DM9102A },
+#endif
{ }
};
@@ -211,10 +227,12 @@
/* Get the chip configuration revision register. */
pci_read_config_dword(devbusfn, PCI_REVISION_ID, &cfrv);
+#ifndef CONFIG_TULIP_FIX_DAVICOM
if ((cfrv & CFRV_RN) < DC2114x_BRK ) {
printf("Error: The chip is not DC21143.\n");
continue;
}
+#endif
pci_read_config_word(devbusfn, PCI_COMMAND, &status);
status |=
@@ -265,7 +283,12 @@
dev = (struct eth_device*) malloc(sizeof *dev);
- sprintf(dev->name, "dc21x4x#%d", card_number);
+#ifdef CONFIG_TULIP_FIX_DAVICOM
+ sprintf(dev->name, "Davicom#%d", card_number);
+#else
+ sprintf(dev->name, "dc21x4x#%d", card_number);
+#endif
+
#ifdef CONFIG_TULIP_USE_IO
dev->iobase = pci_io_to_phys(devbusfn, iobase);
#else
@@ -282,8 +305,9 @@
udelay(10 * 1000);
- read_hw_addr(dev, bis);
-
+#ifndef CONFIG_TULIP_FIX_DAVICOM
+ read_hw_addr(dev, bis);
+#endif
eth_register(dev);
card_number++;
@@ -300,7 +324,11 @@
/* Ensure we're not sleeping. */
pci_write_config_byte(devbusfn, PCI_CFDA_PSM, WAKEUP);
+#ifdef CONFIG_TULIP_FIX_DAVICOM
+ RESET_DM9102(dev);
+#else
RESET_DE4X5(dev);
+#endif
if ((INL(dev, DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
printf("Error: Cannot reset ethernet controller.\n");
@@ -317,14 +345,23 @@
rx_ring[i].status = cpu_to_le32(R_OWN);
rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
rx_ring[i].buf = cpu_to_le32(phys_to_bus((u32) NetRxPackets[i]));
+#ifdef CONFIG_TULIP_FIX_DAVICOM
+ rx_ring[i].next = cpu_to_le32(phys_to_bus((u32) &rx_ring[(i+1) % NUM_RX_DESC]));
+#else
rx_ring[i].next = 0;
+#endif
}
for (i=0; i < NUM_TX_DESC; i++) {
tx_ring[i].status = 0;
tx_ring[i].des1 = 0;
tx_ring[i].buf = 0;
+
+#ifdef CONFIG_TULIP_FIX_DAVICOM
+ tx_ring[i].next = cpu_to_le32(phys_to_bus((u32) &tx_ring[(i+1) % NUM_TX_DESC]));
+#else
tx_ring[i].next = 0;
+#endif
}
rxRingSize = NUM_RX_DESC;
@@ -383,12 +420,14 @@
printf("TX error status = 0x%08X\n",
le32_to_cpu(tx_ring[tx_new].status));
#endif
+ tx_ring[tx_new].status = 0x0;
goto Done;
}
status = length;
Done:
+ tx_new = (tx_new+1) % NUM_TX_DESC;
return status;
}
@@ -485,6 +524,8 @@
if (le32_to_cpu(tx_ring[tx_new].status) != 0x7FFFFFFF) {
printf("TX error status2 = 0x%08X\n", le32_to_cpu(tx_ring[tx_new].status));
}
+ tx_new = (tx_new+1) % NUM_TX_DESC;
+
Done:
return;
}