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POST: Add option for external ethernet loopback test 

When CFG_POST_ETHER_EXT_LOOPBACK is defined, the ethernet POST
is not done using an internal loopback connection, but by assuming
that an external loopback connector is plugged into the board.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2007-08-14 14:41:55 +02:00
parent eb2b4010ae
commit c5a172a5fd
1 changed files with 8 additions and 1 deletions
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9
post/cpu/ppc4xx/ether.c
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@ -68,10 +68,10 @@ static char *rx_buf;
static void ether_post_init (int devnum, int hw_addr)
{
int i;
unsigned mode_reg;
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE)
unsigned mode_reg;
sys_info_t sysinfo;
#endif
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || defined(CONFIG_440SPE)
@ -185,10 +185,17 @@ static void ether_post_init (int devnum, int hw_addr)
mtdcr (malrxcasr, (MAL_TXRX_CASR >> devnum));
/* set internal loopback mode */
#ifdef CFG_POST_ETHER_EXT_LOOPBACK
out32 (EMAC_M1 + hw_addr, EMAC_M1_FDE | 0 |
EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K |
EMAC_M1_MF_100MBPS | EMAC_M1_IST |
in32 (EMAC_M1));
#else
out32 (EMAC_M1 + hw_addr, EMAC_M1_FDE | EMAC_M1_ILE |
EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K |
EMAC_M1_MF_100MBPS | EMAC_M1_IST |
in32 (EMAC_M1));
#endif
/* set transmit enable & receive enable */
out32 (EMAC_M0 + hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);