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| author | TsiChung Liew <Tsi-Chung.Liew@freescale.com> | 2008-04-30 12:11:19 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-04-30 22:38:49 +0200 |
| commit | f32f7fe7bd3a5bda3a476520f00e1aca7c2103a9 (patch) | |
| tree | e7961e1d3aa084360df1d6c8268ccec3dccf3462 /drivers/net/fsl_mcdmafec.c | |
| parent | 886d90176fc257e0ab4d0db05d11d0749bbed3ca (diff) | |
| download | blackbird-obmc-uboot-f32f7fe7bd3a5bda3a476520f00e1aca7c2103a9.tar.gz blackbird-obmc-uboot-f32f7fe7bd3a5bda3a476520f00e1aca7c2103a9.zip | |
ColdFire: Fix ethernet hang issue for mcf547x_8x
The ethernet hang is caused by receiving buffer in DRAM is not
yet ready due to access cycles require longer time in DRAM.
Relocate DMA buffer descriptors from DRAM to internal SRAM.
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Diffstat (limited to 'drivers/net/fsl_mcdmafec.c')
| -rw-r--r-- | drivers/net/fsl_mcdmafec.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/net/fsl_mcdmafec.c b/drivers/net/fsl_mcdmafec.c index 0c876f33bd..2ef91f2d22 100644 --- a/drivers/net/fsl_mcdmafec.c +++ b/drivers/net/fsl_mcdmafec.c @@ -95,7 +95,11 @@ struct fec_info_dma fec_info[] = { 0, /* duplex and speed */ 0, /* phy name */ 0, /* phy name init */ +#ifdef CFG_DMA_USE_INTSRAM + DBUF_LENGTH, /* RX BD */ +#else 0, /* RX BD */ +#endif 0, /* TX BD */ 0, /* rx Index */ 0, /* tx Index */ @@ -164,7 +168,8 @@ static void dbg_fec_regs(struct eth_device *dev) } #endif -static void set_fec_duplex_speed(volatile fecdma_t * fecp, bd_t * bd, int dup_spd) +static void set_fec_duplex_speed(volatile fecdma_t * fecp, bd_t * bd, + int dup_spd) { if ((dup_spd >> 16) == FULL) { /* Set maximum frame length */ @@ -513,6 +518,9 @@ int mcdmafec_initialize(bd_t * bis) { struct eth_device *dev; int i; +#ifdef CFG_DMA_USE_INTSRAM + u32 tmp = CFG_INTSRAM + 0x2000; +#endif for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) { @@ -533,6 +541,17 @@ int mcdmafec_initialize(bd_t * bis) dev->recv = fec_recv; /* setup Receive and Transmit buffer descriptor */ +#ifdef CFG_DMA_USE_INTSRAM + fec_info[i].rxbd = (int)fec_info[i].rxbd + tmp; + tmp = fec_info[i].rxbd; + fec_info[i].txbd = + (int)fec_info[i].txbd + tmp + (PKTBUFSRX * sizeof(cbd_t)); + tmp = fec_info[i].txbd; + fec_info[i].txbuf = + (int)fec_info[i].txbuf + tmp + + (CFG_TX_ETH_BUFFER * sizeof(cbd_t)); + tmp = fec_info[i].txbuf; +#else fec_info[i].rxbd = (cbd_t *) memalign(CFG_CACHELINE_SIZE, (PKTBUFSRX * sizeof(cbd_t))); @@ -541,6 +560,7 @@ int mcdmafec_initialize(bd_t * bis) (CFG_TX_ETH_BUFFER * sizeof(cbd_t))); fec_info[i].txbuf = (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH); +#endif #ifdef ET_DEBUG printf("rxbd %x txbd %x\n", |
