diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/sh_eth.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index c038929..6a78df0 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -26,13 +26,30 @@ # error "Please define CONFIG_SH_ETHER_PHY_ADDR" #endif -#ifdef CONFIG_SH_ETHER_CACHE_WRITEBACK -#define flush_cache_wback(addr, len) \ - flush_dcache_range((u32)addr, (u32)(addr + len - 1)) +#if defined(CONFIG_SH_ETHER_CACHE_WRITEBACK) && !defined(CONFIG_SYS_DCACHE_OFF) +#define flush_cache_wback(addr, len) \ + flush_dcache_range((u32)addr, (u32)(addr + len - 1)) #else #define flush_cache_wback(...) #endif +#if defined(CONFIG_SH_ETHER_CACHE_INVALIDATE) && defined(CONFIG_ARM) +#define invalidate_cache(addr, len) \ + { \ + u32 line_size = CONFIG_SH_ETHER_ALIGNE_SIZE; \ + u32 start, end; \ + \ + start = (u32)addr; \ + end = start + len; \ + start &= ~(line_size - 1); \ + end = ((end + line_size - 1) & ~(line_size - 1)); \ + \ + invalidate_dcache_range(start, end); \ + } +#else +#define invalidate_cache(...) +#endif + #define TIMEOUT_CNT 1000 int sh_eth_send(struct eth_device *dev, void *packet, int len) @@ -70,8 +87,11 @@ int sh_eth_send(struct eth_device *dev, void *packet, int len) /* Wait until packet is transmitted */ timeout = TIMEOUT_CNT; - while (port_info->tx_desc_cur->td0 & TD_TACT && timeout--) + do { + invalidate_cache(port_info->tx_desc_cur, + sizeof(struct tx_desc_s)); udelay(100); + } while (port_info->tx_desc_cur->td0 & TD_TACT && timeout--); if (timeout < 0) { printf(SHETHER_NAME ": transmit timeout\n"); @@ -95,12 +115,14 @@ int sh_eth_recv(struct eth_device *dev) uchar *packet; /* Check if the rx descriptor is ready */ + invalidate_cache(port_info->rx_desc_cur, sizeof(struct rx_desc_s)); if (!(port_info->rx_desc_cur->rd0 & RD_RACT)) { /* Check for errors */ if (!(port_info->rx_desc_cur->rd0 & RD_RFE)) { len = port_info->rx_desc_cur->rd1 & 0xffff; packet = (uchar *) ADDR_TO_P2(port_info->rx_desc_cur->rd2); + invalidate_cache(packet, len); NetReceive(packet, len); } @@ -109,7 +131,6 @@ int sh_eth_recv(struct eth_device *dev) port_info->rx_desc_cur->rd0 = RD_RACT | RD_RDLE; else port_info->rx_desc_cur->rd0 = RD_RACT; - /* Point to the next descriptor */ port_info->rx_desc_cur++; if (port_info->rx_desc_cur >= |