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Diffstat (limited to 'cpu/mpc8260/ether_scc.c')
-rw-r--r--cpu/mpc8260/ether_scc.c50
1 files changed, 40 insertions, 10 deletions
diff --git a/cpu/mpc8260/ether_scc.c b/cpu/mpc8260/ether_scc.c
index c65f0e0..3671ef1 100644
--- a/cpu/mpc8260/ether_scc.c
+++ b/cpu/mpc8260/ether_scc.c
@@ -10,6 +10,12 @@
* Advent Networks, Inc. <http://www.adventnetworks.com>
* Jay Monkman <jtm@smoothsmoothie.com>
*
+ * Modified so that it plays nicely when more than one ETHERNET interface
+ * is in use a la ether_fcc.c.
+ * (C) Copyright 2008
+ * DENX Software Engineerin GmbH
+ * Gary Jennejohn <garyj@denx.de>
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -32,11 +38,14 @@
#include <common.h>
#include <asm/cpm_8260.h>
#include <mpc8260.h>
+#include <malloc.h>
#include <net.h>
#include <command.h>
#include <config.h>
-#if defined(CONFIG_ETHER_ON_SCC) && defined(CONFIG_CMD_NET)
+#ifndef CONFIG_NET_MULTI
+#error "CONFIG_NET_MULTI must be defined."
+#endif
#if (CONFIG_ETHER_INDEX == 1)
# define PROFF_ENET PROFF_SCC1
@@ -100,7 +109,7 @@ typedef volatile struct CommonBufferDescriptor {
static RTXBD *rtx;
-int eth_send(volatile void *packet, int length)
+static int sec_send(struct eth_device *dev, volatile void *packet, int length)
{
int i;
int result = 0;
@@ -137,7 +146,7 @@ int eth_send(volatile void *packet, int length)
}
-int eth_rx(void)
+static int sec_rx(struct eth_device *dev)
{
int length;
@@ -184,7 +193,7 @@ int eth_rx(void)
*
*************************************************************/
-int eth_init(bd_t *bis)
+static int sec_init(struct eth_device *dev, bd_t *bis)
{
int i;
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
@@ -194,9 +203,14 @@ int eth_init(bd_t *bis)
rxIdx = 0;
txIdx = 0;
- /* assign static pointer to BD area */
- dpaddr = m8260_cpm_dpalloc(sizeof(RTXBD) + 2, 16);
- rtx = (RTXBD *)&immr->im_dprambase[dpaddr];
+ /*
+ * Assign static pointer to BD area.
+ * Avoid exhausting DPRAM, which would cause a panic.
+ */
+ if (rtx == NULL) {
+ dpaddr = m8260_cpm_dpalloc(sizeof(RTXBD) + 2, 16);
+ rtx = (RTXBD *)&immr->im_dprambase[dpaddr];
+ }
/* 24.21 - (1-3): ioports have been set up already */
@@ -338,7 +352,7 @@ int eth_init(bd_t *bis)
}
-void eth_halt(void)
+static void sec_halt(struct eth_device *dev)
{
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl &= ~(SCC_GSMRL_ENR |
@@ -346,7 +360,7 @@ void eth_halt(void)
}
#if 0
-void restart(void)
+static void sec_restart(void)
{
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
immr->im_cpm.cp_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR |
@@ -354,4 +368,20 @@ void restart(void)
}
#endif
-#endif
+int mpc82xx_scc_enet_initialize(bd_t *bis)
+{
+ struct eth_device *dev;
+
+ dev = (struct eth_device *) malloc(sizeof *dev);
+ memset(dev, 0, sizeof *dev);
+
+ sprintf(dev->name, "SCC ETHERNET");
+ dev->init = sec_init;
+ dev->halt = sec_halt;
+ dev->send = sec_send;
+ dev->recv = sec_rx;
+
+ eth_register(dev);
+
+ return 1;
+}