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Diffstat (limited to 'cpu/mpc8260/ether_scc.c')
-rw-r--r--cpu/mpc8260/ether_scc.c142
1 files changed, 70 insertions, 72 deletions
diff --git a/cpu/mpc8260/ether_scc.c b/cpu/mpc8260/ether_scc.c
index 8b6af31..10133fa 100644
--- a/cpu/mpc8260/ether_scc.c
+++ b/cpu/mpc8260/ether_scc.c
@@ -43,31 +43,31 @@
# define CPM_CR_ENET_PAGE CPM_CR_SCC1_PAGE
# define CPM_CR_ENET_SBLOCK CPM_CR_SCC1_SBLOCK
# define CMXSCR_MASK (CMXSCR_SC1 |\
- CMXSCR_RS1CS_MSK |\
- CMXSCR_TS1CS_MSK)
+ CMXSCR_RS1CS_MSK |\
+ CMXSCR_TS1CS_MSK)
#elif (CONFIG_ETHER_INDEX == 2)
# define PROFF_ENET PROFF_SCC2
# define CPM_CR_ENET_PAGE CPM_CR_SCC2_PAGE
# define CPM_CR_ENET_SBLOCK CPM_CR_SCC2_SBLOCK
# define CMXSCR_MASK (CMXSCR_SC2 |\
- CMXSCR_RS2CS_MSK |\
- CMXSCR_TS2CS_MSK)
+ CMXSCR_RS2CS_MSK |\
+ CMXSCR_TS2CS_MSK)
#elif (CONFIG_ETHER_INDEX == 3)
# define PROFF_ENET PROFF_SCC3
# define CPM_CR_ENET_PAGE CPM_CR_SCC3_PAGE
# define CPM_CR_ENET_SBLOCK CPM_CR_SCC3_SBLOCK
# define CMXSCR_MASK (CMXSCR_SC3 |\
- CMXSCR_RS3CS_MSK |\
- CMXSCR_TS3CS_MSK)
+ CMXSCR_RS3CS_MSK |\
+ CMXSCR_TS3CS_MSK)
#elif (CONFIG_ETHER_INDEX == 4)
# define PROFF_ENET PROFF_SCC4
# define CPM_CR_ENET_PAGE CPM_CR_SCC4_PAGE
# define CPM_CR_ENET_SBLOCK CPM_CR_SCC4_SBLOCK
# define CMXSCR_MASK (CMXSCR_SC4 |\
- CMXSCR_RS4CS_MSK |\
- CMXSCR_TS4CS_MSK)
+ CMXSCR_RS4CS_MSK |\
+ CMXSCR_TS4CS_MSK)
#endif
@@ -104,27 +104,27 @@ int eth_send(volatile void *packet, int length)
int result = 0;
if (length <= 0) {
- printf("scc: bad packet size: %d\n", length);
- goto out;
+ printf("scc: bad packet size: %d\n", length);
+ goto out;
}
for(i=0; rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) {
- if (i >= TOUT_LOOP) {
- printf("scc: tx buffer not ready\n");
- goto out;
- }
+ if (i >= TOUT_LOOP) {
+ printf("scc: tx buffer not ready\n");
+ goto out;
+ }
}
rtx->txbd[txIdx].cbd_bufaddr = (uint)packet;
rtx->txbd[txIdx].cbd_datlen = length;
rtx->txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST |
- BD_ENET_TX_WRAP);
+ BD_ENET_TX_WRAP);
for(i=0; rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) {
- if (i >= TOUT_LOOP) {
- printf("scc: tx error\n");
- goto out;
- }
+ if (i >= TOUT_LOOP) {
+ printf("scc: tx error\n");
+ goto out;
+ }
}
/* return only status bits */
@@ -141,37 +141,37 @@ int eth_rx(void)
for (;;)
{
- if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
- length = -1;
- break; /* nothing received - leave for() loop */
- }
-
- length = rtx->rxbd[rxIdx].cbd_datlen;
-
- if (rtx->rxbd[rxIdx].cbd_sc & 0x003f)
- {
- printf("err: %x\n", rtx->rxbd[rxIdx].cbd_sc);
- }
- else
- {
- /* Pass the packet up to the protocol layers. */
- NetReceive(NetRxPackets[rxIdx], length - 4);
- }
-
-
- /* Give the buffer back to the SCC. */
- rtx->rxbd[rxIdx].cbd_datlen = 0;
-
- /* wrap around buffer index when necessary */
- if ((rxIdx + 1) >= PKTBUFSRX) {
- rtx->rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP |
- BD_ENET_RX_EMPTY);
- rxIdx = 0;
- }
- else {
- rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
- rxIdx++;
- }
+ if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
+ length = -1;
+ break; /* nothing received - leave for() loop */
+ }
+
+ length = rtx->rxbd[rxIdx].cbd_datlen;
+
+ if (rtx->rxbd[rxIdx].cbd_sc & 0x003f)
+ {
+ printf("err: %x\n", rtx->rxbd[rxIdx].cbd_sc);
+ }
+ else
+ {
+ /* Pass the packet up to the protocol layers. */
+ NetReceive(NetRxPackets[rxIdx], length - 4);
+ }
+
+
+ /* Give the buffer back to the SCC. */
+ rtx->rxbd[rxIdx].cbd_datlen = 0;
+
+ /* wrap around buffer index when necessary */
+ if ((rxIdx + 1) >= PKTBUFSRX) {
+ rtx->rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP |
+ BD_ENET_RX_EMPTY);
+ rxIdx = 0;
+ }
+ else {
+ rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
+ rxIdx++;
+ }
}
return length;
}
@@ -201,7 +201,7 @@ int eth_init(bd_t *bis)
/* 24.21 - (4,5): connect SCC's tx and rx clocks, use NMSI for SCC */
immr->im_cpmux.cmx_uar = 0;
immr->im_cpmux.cmx_scr = ( (immr->im_cpmux.cmx_scr & ~CMXSCR_MASK) |
- CFG_CMXSCR_VALUE);
+ CFG_CMXSCR_VALUE);
/* 24.21 (6) write RBASE and TBASE to parameter RAM */
@@ -221,9 +221,9 @@ int eth_init(bd_t *bis)
/* 24.21 - (7): Write INIT RX AND TX PARAMETERS to CPCR */
while(immr->im_cpm.cp_cpcr & CPM_CR_FLG);
immr->im_cpm.cp_cpcr = mk_cr_cmd(CPM_CR_ENET_PAGE,
- CPM_CR_ENET_SBLOCK,
- 0x0c,
- CPM_CR_INIT_TRX) | CPM_CR_FLG;
+ CPM_CR_ENET_SBLOCK,
+ 0x0c,
+ CPM_CR_INIT_TRX) | CPM_CR_FLG;
/* 24.21 - (8-18): Set up parameter RAM */
pram_ptr->sen_crcec = 0x0; /* Error Counter CRC (unused) */
@@ -266,9 +266,9 @@ int eth_init(bd_t *bis)
/* 24.21 - (19): Initialize RxBD */
for (i = 0; i < PKTBUFSRX; i++)
{
- rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
- rtx->rxbd[i].cbd_datlen = 0; /* Reset */
- rtx->rxbd[i].cbd_bufaddr = (uint)NetRxPackets[i];
+ rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
+ rtx->rxbd[i].cbd_datlen = 0; /* Reset */
+ rtx->rxbd[i].cbd_bufaddr = (uint)NetRxPackets[i];
}
rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
@@ -276,11 +276,11 @@ int eth_init(bd_t *bis)
/* 24.21 - (20): Initialize TxBD */
for (i = 0; i < TX_BUF_CNT; i++)
{
- rtx->txbd[i].cbd_sc = (BD_ENET_TX_PAD |
- BD_ENET_TX_LAST |
- BD_ENET_TX_TC);
- rtx->txbd[i].cbd_datlen = 0; /* Reset */
- rtx->txbd[i].cbd_bufaddr = (uint)&txbuf[i][0];
+ rtx->txbd[i].cbd_sc = (BD_ENET_TX_PAD |
+ BD_ENET_TX_LAST |
+ BD_ENET_TX_TC);
+ rtx->txbd[i].cbd_datlen = 0; /* Reset */
+ rtx->txbd[i].cbd_bufaddr = (uint)&txbuf[i][0];
}
rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
@@ -290,8 +290,8 @@ int eth_init(bd_t *bis)
/* 24.21 - (22): Write to SCCM to enable TXE, RXF, TXB events */
immr->im_scc[CONFIG_ETHER_INDEX-1].scc_sccm = (SCCE_ENET_TXE |
- SCCE_ENET_RXF |
- SCCE_ENET_TXB);
+ SCCE_ENET_RXF |
+ SCCE_ENET_TXB);
/* 24.21 - (23): we don't use ethernet interrupts */
@@ -300,9 +300,9 @@ int eth_init(bd_t *bis)
/* 24.21 - (25): Clear GSMR_L to enable normal operations */
immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl = (SCC_GSMRL_TCI |
- SCC_GSMRL_TPL_48 |
- SCC_GSMRL_TPP_10 |
- SCC_GSMRL_MODE_ENET);
+ SCC_GSMRL_TPL_48 |
+ SCC_GSMRL_TPP_10 |
+ SCC_GSMRL_MODE_ENET);
/* 24.21 - (26): Initialize DSR */
immr->im_scc[CONFIG_ETHER_INDEX-1].scc_dsr = 0xd555;
@@ -331,18 +331,17 @@ int eth_init(bd_t *bis)
/* 24.21 - (28): Write to GSMR_L to enable SCC */
immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR |
- SCC_GSMRL_ENT);
+ SCC_GSMRL_ENT);
return 0;
}
-
void eth_halt(void)
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl &= ~(SCC_GSMRL_ENR |
- SCC_GSMRL_ENT);
+ SCC_GSMRL_ENT);
}
#if 0
@@ -350,9 +349,8 @@ void restart(void)
{
volatile immap_t *immr = (immap_t *)CFG_IMMR;
immr->im_cpm.cp_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR |
- SCC_GSMRL_ENT);
+ SCC_GSMRL_ENT);
}
#endif
#endif /* CONFIG_ETHER_ON_SCC && CFG_CMD_NET */
-
generated by cgit v1.1 at 2024-11-16 09:22:24 +0000