diff options
Diffstat (limited to 'cpu/mpc8260/ether_scc.c')
| -rw-r--r-- | cpu/mpc8260/ether_scc.c | 50 |
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; +} |