* Make Ethernet autonegotiation on INCA-IP work for all clock rates;
allow selection of clock frequency as "make" target
* Implement memory autosizing code for IceCube boards
* Configure network port on INCA-IP for autonegotiation
* Fix overflow problem in network timeout code
* Patch by Richard Woodruff, 8 Aug 2003:
Allow crc32 to be used at address 0x000 (crc32_no_comp, too).
diff --git a/drivers/inca-ip_sw.c b/drivers/inca-ip_sw.c
index 07e86fc..f5009d4 100644
--- a/drivers/inca-ip_sw.c
+++ b/drivers/inca-ip_sw.c
@@ -70,10 +70,8 @@
typedef struct
{
- union
- {
- struct
- {
+ union {
+ struct {
volatile u32 HOLD :1;
volatile u32 ICpt :1;
volatile u32 IEop :1;
@@ -89,10 +87,8 @@
volatile u32 RxDataPtr;
- union
- {
- struct
- {
+ union {
+ struct {
volatile u32 C :1;
volatile u32 Sop :1;
volatile u32 Eop :1;
@@ -108,10 +104,8 @@
typedef struct
{
- union
- {
- struct
- {
+ union {
+ struct {
volatile u32 HOLD :1;
volatile u32 Eop :1;
volatile u32 Sop :1;
@@ -159,8 +153,7 @@
printf("Entered inca_switch_initialize()\n");
#endif
- if (!(dev = (struct eth_device *) malloc (sizeof *dev)))
- {
+ if (!(dev = (struct eth_device *) malloc (sizeof *dev))) {
printf("Failed to allocate memory\n");
return 0;
}
@@ -196,8 +189,8 @@
printf("Entering inca_switch_init()\n");
#endif
- /* Set MAC address.
- */
+ /* Set MAC address.
+ */
wTmp = (u16)dev->enetaddr[0];
regValue = (wTmp << 8) | dev->enetaddr[1];
@@ -211,35 +204,32 @@
SW_WRITE_REG(INCA_IP_Switch_PMAC_SA2, regValue);
- /* Initialize the descriptor rings.
- */
+ /* Initialize the descriptor rings.
+ */
for (i = 0; i < NUM_RX_DESC; i++)
{
inca_rx_descriptor_t * rx_desc = KSEG1ADDR(&rx_ring[i]);
memset(rx_desc, 0, sizeof(rx_ring[i]));
- /* Set maximum size of receive buffer.
- */
+ /* Set maximum size of receive buffer.
+ */
rx_desc->params.field.NFB = PKTSIZE_ALIGN;
- /* Set the offset of the receive buffer. Zero means
- * that the offset mechanism is not used.
- */
+ /* Set the offset of the receive buffer. Zero means
+ * that the offset mechanism is not used.
+ */
rx_desc->params.field.offset = 0;
/* Check if it is the last descriptor.
*/
- if (i == (NUM_RX_DESC - 1))
- {
- /* Let the last descriptor point to the first
- * one.
- */
+ if (i == (NUM_RX_DESC - 1)) {
+ /* Let the last descriptor point to the first
+ * one.
+ */
rx_desc->nextRxDescPtr = KSEG1ADDR((u32)rx_ring);
- }
- else
- {
- /* Set the address of the next descriptor.
- */
+ } else {
+ /* Set the address of the next descriptor.
+ */
rx_desc->nextRxDescPtr = (u32)KSEG1ADDR(&rx_ring[i+1]);
}
@@ -251,8 +241,7 @@
printf("tx_ring = 0x%08X 0x%08X\n", (u32)tx_ring, (u32)&tx_ring[0]);
#endif
- for (i = 0; i < NUM_TX_DESC; i++)
- {
+ for (i = 0; i < NUM_TX_DESC; i++) {
inca_tx_descriptor_t * tx_desc = KSEG1ADDR(&tx_ring[i]);
memset(tx_desc, 0, sizeof(tx_ring[i]));
@@ -263,46 +252,43 @@
/* Check if it is the last descriptor.
*/
- if (i == (NUM_TX_DESC - 1))
- {
+ if (i == (NUM_TX_DESC - 1)) {
/* Let the last descriptor point to the
* first one.
*/
tx_desc->nextTxDescPtr = KSEG1ADDR((u32)tx_ring);
- }
- else
- {
+ } else {
/* Set the address of the next descriptor.
*/
tx_desc->nextTxDescPtr = (u32)KSEG1ADDR(&tx_ring[i+1]);
}
}
- /* Initialize RxDMA.
- */
+ /* Initialize RxDMA.
+ */
DMA_READ_REG(INCA_IP_DMA_DMA_RXISR, v);
#if 0
printf("RX status = 0x%08X\n", v);
#endif
- /* Writing to the FRDA of CHANNEL.
- */
+ /* Writing to the FRDA of CHANNEL.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXFRDA0, (u32)rx_ring);
- /* Writing to the COMMAND REG.
- */
+ /* Writing to the COMMAND REG.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXCCR0,
INCA_IP_DMA_DMA_RXCCR0_INIT);
- /* Initialize TxDMA.
- */
+ /* Initialize TxDMA.
+ */
DMA_READ_REG(INCA_IP_DMA_DMA_TXISR, v);
#if 0
printf("TX status = 0x%08X\n", v);
#endif
- /* Writing to the FRDA of CHANNEL.
- */
+ /* Writing to the FRDA of CHANNEL.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXFRDA0, (u32)tx_ring);
tx_new = rx_new = 0;
@@ -313,12 +299,12 @@
#if 0
rx_ring[rx_hold].params.field.HOLD = 1;
#endif
- /* enable spanning tree forwarding, enable the CPU port */
- /* ST_PT:
- CPS (CPU port status) 0x3 (forwarding)
- LPS (LAN port status) 0x3 (forwarding)
- PPS (PC port status) 0x3 (forwarding)
- */
+ /* enable spanning tree forwarding, enable the CPU port */
+ /* ST_PT:
+ * CPS (CPU port status) 0x3 (forwarding)
+ * LPS (LAN port status) 0x3 (forwarding)
+ * PPS (PC port status) 0x3 (forwarding)
+ */
SW_WRITE_REG(INCA_IP_Switch_ST_PT,0x3f);
#if 0
@@ -342,23 +328,19 @@
printf("Entered inca_switch_send()\n");
#endif
- if (length <= 0)
- {
+ if (length <= 0) {
printf ("%s: bad packet size: %d\n", dev->name, length);
goto Done;
}
- for(i = 0; tx_desc->C == 0; i++)
- {
- if (i >= TOUT_LOOP)
- {
+ for(i = 0; tx_desc->C == 0; i++) {
+ if (i >= TOUT_LOOP) {
printf("%s: tx error buffer not ready\n", dev->name);
goto Done;
}
}
- if (tx_old_hold >= 0)
- {
+ if (tx_old_hold >= 0) {
KSEG1ADDR(&tx_ring[tx_old_hold])->params.field.HOLD = 1;
}
tx_old_hold = tx_hold;
@@ -376,13 +358,10 @@
tx_new = (tx_new + 1) % NUM_TX_DESC;
- if (! initialized)
- {
+ if (! initialized) {
command = INCA_IP_DMA_DMA_TXCCR0_INIT;
initialized = 1;
- }
- else
- {
+ } else {
command = INCA_IP_DMA_DMA_TXCCR0_HR;
}
@@ -394,10 +373,8 @@
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXCCR0, regValue);
#if 1
- for(i = 0; KSEG1ADDR(&tx_ring[tx_hold])->C == 0; i++)
- {
- if (i >= TOUT_LOOP)
- {
+ for(i = 0; KSEG1ADDR(&tx_ring[tx_hold])->C == 0; i++) {
+ if (i >= TOUT_LOOP) {
printf("%s: tx buffer not ready\n", dev->name);
goto Done;
}
@@ -421,12 +398,10 @@
printf("Entered inca_switch_recv()\n");
#endif
- for (;;)
- {
+ for (;;) {
rx_desc = KSEG1ADDR(&rx_ring[rx_new]);
- if (rx_desc->status.field.C == 0)
- {
+ if (rx_desc->status.field.C == 0) {
break;
}
@@ -434,8 +409,7 @@
rx_ring[rx_new].params.field.HOLD = 1;
#endif
- if (! rx_desc->status.field.Eop)
- {
+ if (! rx_desc->status.field.Eop) {
printf("Partly received packet!!!\n");
break;
}
@@ -454,16 +428,13 @@
}
#endif
- if (length)
- {
+ if (length) {
#if 0
printf("Received %d bytes\n", length);
#endif
NetReceive((void*)KSEG1ADDR(NetRxPackets[rx_new]),
length - 4);
- }
- else
- {
+ } else {
#if 1
printf("Zero length!!!\n");
#endif
@@ -495,16 +466,16 @@
initialized = 0;
#endif
#if 1
- /* Disable forwarding to the CPU port.
- */
+ /* Disable forwarding to the CPU port.
+ */
SW_WRITE_REG(INCA_IP_Switch_ST_PT,0xf);
- /* Close RxDMA channel.
- */
+ /* Close RxDMA channel.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXCCR0, INCA_IP_DMA_DMA_RXCCR0_OFF);
- /* Close TxDMA channel.
- */
+ /* Close TxDMA channel.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXCCR0, INCA_IP_DMA_DMA_TXCCR0_OFF);
@@ -519,88 +490,89 @@
{
u32 regValue;
- /* To workaround a problem with collision counter
- * (see Errata sheet).
- */
+ /* To workaround a problem with collision counter
+ * (see Errata sheet).
+ */
SW_WRITE_REG(INCA_IP_Switch_PC_TX_CTL, 0x00000001);
SW_WRITE_REG(INCA_IP_Switch_LAN_TX_CTL, 0x00000001);
#if 1
- /* init MDIO configuration:
- MDS (Poll speed): 0x01 (4ms)
- PHY_LAN_ADDR: 0x06
- PHY_PC_ADDR: 0x05
- UEP (Use External PHY): 0x00 (Internal PHY is used)
- PS (Port Select): 0x00 (PT/UMM for LAN)
- PT (PHY Test): 0x00 (no test mode)
- UMM (Use MDIO Mode): 0x00 (state machine is disabled)
- */
+ /* init MDIO configuration:
+ * MDS (Poll speed): 0x01 (4ms)
+ * PHY_LAN_ADDR: 0x06
+ * PHY_PC_ADDR: 0x05
+ * UEP (Use External PHY): 0x00 (Internal PHY is used)
+ * PS (Port Select): 0x00 (PT/UMM for LAN)
+ * PT (PHY Test): 0x00 (no test mode)
+ * UMM (Use MDIO Mode): 0x00 (state machine is disabled)
+ */
SW_WRITE_REG(INCA_IP_Switch_MDIO_CFG, 0x4c50);
- /* init PHY:
- SL (Auto Neg. Speed for LAN)
- SP (Auto Neg. Speed for PC)
- LL (Link Status for LAN)
- LP (Link Status for PC)
- DL (Duplex Status for LAN)
- DP (Duplex Status for PC)
- PL (Auto Neg. Pause Status for LAN)
- PP (Auto Neg. Pause Status for PC)
- */
+ /* init PHY:
+ * SL (Auto Neg. Speed for LAN)
+ * SP (Auto Neg. Speed for PC)
+ * LL (Link Status for LAN)
+ * LP (Link Status for PC)
+ * DL (Duplex Status for LAN)
+ * DP (Duplex Status for PC)
+ * PL (Auto Neg. Pause Status for LAN)
+ * PP (Auto Neg. Pause Status for PC)
+ */
SW_WRITE_REG (INCA_IP_Switch_EPHY, 0xff);
- /* MDIO_ACC:
- RA (Request/Ack) 0x01 (Request)
- RW (Read/Write) 0x01 (Write)
- PHY_ADDR 0x05 (PC)
- REG_ADDR 0x00 (PHY_BCR: basic control register)
- PHY_DATA 0x8000
- Reset - software reset
- LB (loop back) - normal
- SS (speed select) - 10 Mbit/s
- ANE (auto neg. enable) - disable
- PD (power down) - normal
- ISO (isolate) - normal
- RAN (restart auto neg.) - normal
- DM (duplex mode) - half duplex
- CT (collision test) - enable
- */
- SW_WRITE_REG(INCA_IP_Switch_MDIO_ACC, 0xc0a08000);
+ /* MDIO_ACC:
+ * RA (Request/Ack) 0x01 (Request)
+ * RW (Read/Write) 0x01 (Write)
+ * PHY_ADDR 0x05 (PC)
+ * REG_ADDR 0x00 (PHY_BCR: basic control register)
+ * PHY_DATA 0x8000
+ * Reset - software reset
+ * LB (loop back) - normal
+ * SS (speed select) - 10 Mbit/s
+ * ANE (auto neg. enable) - enable
+ * PD (power down) - normal
+ * ISO (isolate) - normal
+ * RAN (restart auto neg.) - normal
+ * DM (duplex mode) - half duplex
+ * CT (collision test) - enable
+ */
+ SW_WRITE_REG(INCA_IP_Switch_MDIO_ACC, 0xc0a09000);
- /* MDIO_ACC:
- RA (Request/Ack) 0x01 (Request)
- RW (Read/Write) 0x01 (Write)
- PHY_ADDR 0x06 (LAN)
- REG_ADDR 0x00 (PHY_BCR: basic control register)
- PHY_DATA 0x8000
- Reset - software reset
- LB (loop back) - normal
- SS (speed select) - 10 Mbit/s
- ANE (auto neg. enable) - disable
- PD (power down) - normal
- ISO (isolate) - normal
- RAN (restart auto neg.) - normal
- DM (duplex mode) - half duplex
- CT (collision test) - enable
- */
- SW_WRITE_REG(INCA_IP_Switch_MDIO_ACC, 0xc0c08000);
+ /* MDIO_ACC:
+ * RA (Request/Ack) 0x01 (Request)
+ * RW (Read/Write) 0x01 (Write)
+ * PHY_ADDR 0x06 (LAN)
+ * REG_ADDR 0x00 (PHY_BCR: basic control register)
+ * PHY_DATA 0x8000
+ * Reset - software reset
+ * LB (loop back) - normal
+ * SS (speed select) - 10 Mbit/s
+ * ANE (auto neg. enable) - enable
+ * PD (power down) - normal
+ * ISO (isolate) - normal
+ * RAN (restart auto neg.) - normal
+ * DM (duplex mode) - half duplex
+ * CT (collision test) - enable
+ */
+ SW_WRITE_REG(INCA_IP_Switch_MDIO_ACC, 0xc0c09000);
+
#endif
- /* Make sure the CPU port is disabled for now. We
- * don't want packets to get stacked for us until
- * we enable DMA and are prepared to receive them.
- */
+ /* Make sure the CPU port is disabled for now. We
+ * don't want packets to get stacked for us until
+ * we enable DMA and are prepared to receive them.
+ */
SW_WRITE_REG(INCA_IP_Switch_ST_PT,0xf);
SW_READ_REG(INCA_IP_Switch_ARL_CTL, regValue);
- /* CRC GEN is enabled.
- */
+ /* CRC GEN is enabled.
+ */
regValue |= 0x00000200;
SW_WRITE_REG(INCA_IP_Switch_ARL_CTL, regValue);
- /* ADD TAG is disabled.
- */
+ /* ADD TAG is disabled.
+ */
SW_READ_REG(INCA_IP_Switch_PMAC_HD_CTL, regValue);
regValue &= ~0x00000002;
SW_WRITE_REG(INCA_IP_Switch_PMAC_HD_CTL, regValue);
@@ -609,8 +581,8 @@
static void inca_dma_init(void)
{
- /* Switch off all DMA channels.
- */
+ /* Switch off all DMA channels.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXCCR0, INCA_IP_DMA_DMA_RXCCR0_OFF);
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXCCR1, INCA_IP_DMA_DMA_RXCCR1_OFF);
@@ -618,20 +590,20 @@
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXCCR1, INCA_IP_DMA_DMA_TXCCR1_OFF);
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXCCR2, INCA_IP_DMA_DMA_TXCCR2_OFF);
- /* Setup TX channel polling time.
- */
+ /* Setup TX channel polling time.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXPOLL, INCA_DMA_TX_POLLING_TIME);
- /* Setup RX channel polling time.
- */
+ /* Setup RX channel polling time.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXPOLL, INCA_DMA_RX_POLLING_TIME);
- /* ERRATA: write reset value into the DMA RX IMR register.
- */
+ /* ERRATA: write reset value into the DMA RX IMR register.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_RXIMR, 0xFFFFFFFF);
- /* Just in case: disable all transmit interrupts also.
- */
+ /* Just in case: disable all transmit interrupts also.
+ */
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXIMR, 0xFFFFFFFF);
DMA_WRITE_REG(INCA_IP_DMA_DMA_TXISR, 0xFFFFFFFF);