diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2014-01-05 01:10:44 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-04 20:25:19 -0500 |
| commit | 56ceecde1f294ea022582723ea344994a452845f (patch) | |
| tree | 2ccc085f4a37d39d4a97a99d8ff1b3b83b2c5b5c /drivers/net/ethernet | |
| parent | b2395b8aeaa2f181ee87f5840c6268992b30ed95 (diff) | |
bgmac: initialize the DMA controller of core rev >= 4
The DMA controller used in the device supported by GMAC with core rev
>= 4 has some new options which are now set to the default values used
in the Broadcom SDK.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.c | 23 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.h | 50 |
2 files changed, 73 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 39efb864267..aa5e289df82 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -96,6 +96,19 @@ static void bgmac_dma_tx_enable(struct bgmac *bgmac, u32 ctl; ctl = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL); + if (bgmac->core->id.rev >= 4) { + ctl &= ~BGMAC_DMA_TX_BL_MASK; + ctl |= BGMAC_DMA_TX_BL_128 << BGMAC_DMA_TX_BL_SHIFT; + + ctl &= ~BGMAC_DMA_TX_MR_MASK; + ctl |= BGMAC_DMA_TX_MR_2 << BGMAC_DMA_TX_MR_SHIFT; + + ctl &= ~BGMAC_DMA_TX_PC_MASK; + ctl |= BGMAC_DMA_TX_PC_16 << BGMAC_DMA_TX_PC_SHIFT; + + ctl &= ~BGMAC_DMA_TX_PT_MASK; + ctl |= BGMAC_DMA_TX_PT_8 << BGMAC_DMA_TX_PT_SHIFT; + } ctl |= BGMAC_DMA_TX_ENABLE; ctl |= BGMAC_DMA_TX_PARITY_DISABLE; bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL, ctl); @@ -240,6 +253,16 @@ static void bgmac_dma_rx_enable(struct bgmac *bgmac, u32 ctl; ctl = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL); + if (bgmac->core->id.rev >= 4) { + ctl &= ~BGMAC_DMA_RX_BL_MASK; + ctl |= BGMAC_DMA_RX_BL_128 << BGMAC_DMA_RX_BL_SHIFT; + + ctl &= ~BGMAC_DMA_RX_PC_MASK; + ctl |= BGMAC_DMA_RX_PC_8 << BGMAC_DMA_RX_PC_SHIFT; + + ctl &= ~BGMAC_DMA_RX_PT_MASK; + ctl |= BGMAC_DMA_RX_PT_1 << BGMAC_DMA_RX_PT_SHIFT; + } ctl &= BGMAC_DMA_RX_ADDREXT_MASK; ctl |= BGMAC_DMA_RX_ENABLE; ctl |= BGMAC_DMA_RX_PARITY_DISABLE; diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h index 130b16b5d35..71adac9db21 100644 --- a/drivers/net/ethernet/broadcom/bgmac.h +++ b/drivers/net/ethernet/broadcom/bgmac.h @@ -237,9 +237,34 @@ #define BGMAC_DMA_TX_SUSPEND 0x00000002 #define BGMAC_DMA_TX_LOOPBACK 0x00000004 #define BGMAC_DMA_TX_FLUSH 0x00000010 +#define BGMAC_DMA_TX_MR_MASK 0x000000C0 /* Multiple outstanding reads */ +#define BGMAC_DMA_TX_MR_SHIFT 6 +#define BGMAC_DMA_TX_MR_1 0 +#define BGMAC_DMA_TX_MR_2 1 #define BGMAC_DMA_TX_PARITY_DISABLE 0x00000800 #define BGMAC_DMA_TX_ADDREXT_MASK 0x00030000 #define BGMAC_DMA_TX_ADDREXT_SHIFT 16 +#define BGMAC_DMA_TX_BL_MASK 0x001C0000 /* BurstLen bits */ +#define BGMAC_DMA_TX_BL_SHIFT 18 +#define BGMAC_DMA_TX_BL_16 0 +#define BGMAC_DMA_TX_BL_32 1 +#define BGMAC_DMA_TX_BL_64 2 +#define BGMAC_DMA_TX_BL_128 3 +#define BGMAC_DMA_TX_BL_256 4 +#define BGMAC_DMA_TX_BL_512 5 +#define BGMAC_DMA_TX_BL_1024 6 +#define BGMAC_DMA_TX_PC_MASK 0x00E00000 /* Prefetch control */ +#define BGMAC_DMA_TX_PC_SHIFT 21 +#define BGMAC_DMA_TX_PC_0 0 +#define BGMAC_DMA_TX_PC_4 1 +#define BGMAC_DMA_TX_PC_8 2 +#define BGMAC_DMA_TX_PC_16 3 +#define BGMAC_DMA_TX_PT_MASK 0x03000000 /* Prefetch threshold */ +#define BGMAC_DMA_TX_PT_SHIFT 24 +#define BGMAC_DMA_TX_PT_1 0 +#define BGMAC_DMA_TX_PT_2 1 +#define BGMAC_DMA_TX_PT_4 2 +#define BGMAC_DMA_TX_PT_8 3 #define BGMAC_DMA_TX_INDEX 0x04 #define BGMAC_DMA_TX_RINGLO 0x08 #define BGMAC_DMA_TX_RINGHI 0x0C @@ -267,8 +292,33 @@ #define BGMAC_DMA_RX_DIRECT_FIFO 0x00000100 #define BGMAC_DMA_RX_OVERFLOW_CONT 0x00000400 #define BGMAC_DMA_RX_PARITY_DISABLE 0x00000800 +#define BGMAC_DMA_RX_MR_MASK 0x000000C0 /* Multiple outstanding reads */ +#define BGMAC_DMA_RX_MR_SHIFT 6 +#define BGMAC_DMA_TX_MR_1 0 +#define BGMAC_DMA_TX_MR_2 1 #define BGMAC_DMA_RX_ADDREXT_MASK 0x00030000 #define BGMAC_DMA_RX_ADDREXT_SHIFT 16 +#define BGMAC_DMA_RX_BL_MASK 0x001C0000 /* BurstLen bits */ +#define BGMAC_DMA_RX_BL_SHIFT 18 +#define BGMAC_DMA_RX_BL_16 0 +#define BGMAC_DMA_RX_BL_32 1 +#define BGMAC_DMA_RX_BL_64 2 +#define BGMAC_DMA_RX_BL_128 3 +#define BGMAC_DMA_RX_BL_256 4 +#define BGMAC_DMA_RX_BL_512 5 +#define BGMAC_DMA_RX_BL_1024 6 +#define BGMAC_DMA_RX_PC_MASK 0x00E00000 /* Prefetch control */ +#define BGMAC_DMA_RX_PC_SHIFT 21 +#define BGMAC_DMA_RX_PC_0 0 +#define BGMAC_DMA_RX_PC_4 1 +#define BGMAC_DMA_RX_PC_8 2 +#define BGMAC_DMA_RX_PC_16 3 +#define BGMAC_DMA_RX_PT_MASK 0x03000000 /* Prefetch threshold */ +#define BGMAC_DMA_RX_PT_SHIFT 24 +#define BGMAC_DMA_RX_PT_1 0 +#define BGMAC_DMA_RX_PT_2 1 +#define BGMAC_DMA_RX_PT_4 2 +#define BGMAC_DMA_RX_PT_8 3 #define BGMAC_DMA_RX_INDEX 0x24 #define BGMAC_DMA_RX_RINGLO 0x28 #define BGMAC_DMA_RX_RINGHI 0x2C |