diff options
| author | Grzegorz Bernacki <gjb@semihalf.com> | 2007-09-10 17:39:08 +0200 |
|---|---|---|
| committer | Rafal Jaworowski <raj@semihalf.com> | 2007-09-10 17:39:08 +0200 |
| commit | 7a888d6b3c32a126dbb504ef146bb4c26574ca7b (patch) | |
| tree | 5232ab1b43f86b881151712cfd8d2d484719b3c6 /cpu/mpc512x | |
| parent | e251e00d0db4b36d1d2b7e38fec43a7296b529a2 (diff) | |
[MPC512x] Streamline frame handling in the FEC driver
- convert frame size settings to be derived from a single base
- set frame size to the recommended default value
Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Diffstat (limited to 'cpu/mpc512x')
| -rw-r--r-- | cpu/mpc512x/fec.c | 8 | ||||
| -rw-r--r-- | cpu/mpc512x/fec.h | 7 |
2 files changed, 9 insertions, 6 deletions
diff --git a/cpu/mpc512x/fec.c b/cpu/mpc512x/fec.c index 810457617..675b7a2e0 100644 --- a/cpu/mpc512x/fec.c +++ b/cpu/mpc512x/fec.c @@ -32,7 +32,7 @@ int fec512x_miiphy_read(char *devname, uint8 phyAddr, uint8 regAddr, uint16 * re int fec512x_miiphy_write(char *devname, uint8 phyAddr, uint8 regAddr, uint16 data); int mpc512x_fec_init_phy(struct eth_device *dev, bd_t * bis); -static uchar rx_buff[FEC_MAX_PKT_SIZE]; +static uchar rx_buff[FEC_BUFFER_SIZE]; static int rx_buff_idx = 0; /********************************************************************/ @@ -237,8 +237,8 @@ static int mpc512x_fec_init (struct eth_device *dev, bd_t * bis) /* Set Opcode/Pause Duration Register */ fec->eth->op_pause = 0x00010020; - /* Frame length=1518; MII mode */ - fec->eth->r_cntrl = 0x05ee0024; + /* Frame length=1522; MII mode */ + fec->eth->r_cntrl = (FEC_MAX_FRAME_LEN << 16) | 0x24; /* Half-duplex, heartbeat disabled */ fec->eth->x_cntrl = 0x00000000; @@ -248,7 +248,7 @@ static int mpc512x_fec_init (struct eth_device *dev, bd_t * bis) /* Setup recv fifo start and buff size */ fec->eth->r_fstart = 0x500; - fec->eth->r_buff_size = 0x5e0; + fec->eth->r_buff_size = FEC_BUFFER_SIZE; /* Setup BD base addresses */ fec->eth->r_des_start = (uint32)fec->bdBase->rbd; diff --git a/cpu/mpc512x/fec.h b/cpu/mpc512x/fec.h index d2d877aa5..9c3850287 100644 --- a/cpu/mpc512x/fec.h +++ b/cpu/mpc512x/fec.h @@ -164,10 +164,13 @@ typedef enum { #define FEC_RBD_NUM 32 /* The user can adjust this value */ /* packet size limit */ -#define FEC_MAX_PKT_SIZE 1536 +#define FEC_MAX_FRAME_LEN 1522 /* recommended default value */ + +/* Buffer size must be evenly divisible by 16 */ +#define FEC_BUFFER_SIZE ((FEC_MAX_FRAME_LEN + 0x10) & (~0xf)) typedef struct { - uint8 frame[FEC_MAX_PKT_SIZE]; + uint8 frame[FEC_BUFFER_SIZE]; } mpc512x_frame; typedef struct { |