diff options
Diffstat (limited to 'cpu/arm920t/at91rm9200/ether.c')
| -rw-r--r-- | cpu/arm920t/at91rm9200/ether.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/cpu/arm920t/at91rm9200/ether.c b/cpu/arm920t/at91rm9200/ether.c index bff95b6..d88517f 100644 --- a/cpu/arm920t/at91rm9200/ether.c +++ b/cpu/arm920t/at91rm9200/ether.c @@ -44,21 +44,19 @@ typedef struct { #define RBF_LOCAL2 (1<<24) #define RBF_LOCAL1 (1<<23) -/* Emac Buffers in last 512KBytes of SDRAM*/ -/* Be careful, buffer size is limited to 512KBytes !!! */ -#define RBF_FRAMEMAX 100 -/*#define RBF_FRAMEMEM 0x200000 */ -#define RBF_FRAMEMEM 0x21F80000 +#define RBF_FRAMEMAX 64 #define RBF_FRAMELEN 0x600 -#define RBF_FRAMEBTD RBF_FRAMEMEM -#define RBF_FRAMEBUF (RBF_FRAMEMEM + RBF_FRAMEMAX*sizeof(rbf_t)) - - #ifdef CONFIG_DRIVER_ETHER #if (CONFIG_COMMANDS & CFG_CMD_NET) +/* alignment as per Errata #11 (64 bytes) is insufficient! */ +rbf_t rbfdt[RBF_FRAMEMAX] __attribute((aligned(512))); +rbf_t *rbfp; + +unsigned char rbf_framebuf[RBF_FRAMEMAX][RBF_FRAMELEN] __attribute((aligned(4))); + /* structure to interface the PHY */ AT91S_PhyOps PhyOps; @@ -153,9 +151,6 @@ UCHAR at91rm9200_EmacWritePhy (AT91PS_EMAC p_mac, } -rbf_t *rbfdt; -rbf_t *rbfp; - int eth_init (bd_t * bd) { int ret; @@ -188,9 +183,8 @@ int eth_init (bd_t * bd) p_mac->EMAC_CFG |= AT91C_EMAC_CSR; /* Clear statistics */ /* Init Ehternet buffers */ - rbfdt = (rbf_t *) RBF_FRAMEBTD; for (i = 0; i < RBF_FRAMEMAX; i++) { - rbfdt[i].addr = RBF_FRAMEBUF + RBF_FRAMELEN * i; + rbfdt[i].addr = rbf_framebuf[i]; rbfdt[i].size = 0; } rbfdt[RBF_FRAMEMAX - 1].addr |= RBF_WRAP; |