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add back support for BCM6345 Ethernet DMA engine 

SVN-Revision: 33889
lede-17.01
Florian Fainelli 2012-10-22 12:57:22 +00:00
parent eeed82c04e
commit 61686a1514
1 changed files with 509 additions and 0 deletions
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509
target/linux/brcm63xx/patches-3.3/443-MIPS-BCM63XX-enable-enet-for-BCM6345.patch Normal file
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@ -0,0 +1,509 @@
[PATCH] MIPS: BCM63XX: enable ethernet for BCM6345
BCM6345 has a slightly older DMA engine which is not supported by default by
the bcm63xx_enet driver. This patch adds the missing Ethernet DMA definitions
as well as patches all the places in the ethernet driver were the DMA
reading/writing is different.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -172,7 +172,7 @@ int __init bcm63xx_enet_register(int uni
if (unit > 1)
return -ENODEV;
- if (unit == 1 && BCMCPU_IS_6338())
+ if (unit == 1 && (BCMCPU_IS_6338() || BCMCPU_IS_6345()))
return -ENODEV;
ret = register_shared();
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -764,6 +764,37 @@
/* State Ram Word 4 */
#define ENETDMA_SRAM4_REG(x) (0x20c + (x) * 0x10)
+/* Broadcom 6345 ENET DMA definitions */
+#define ENETDMA_6345_CHANCFG_REG(x) (0x00 + (x) * 0x40)
+#define ENETDMA_6345_CHANCFG_EN_SHIFT 0
+#define ENETDMA_6345_CHANCFG_EN_MASK (1 << ENETDMA_6345_CHANCFG_EN_SHIFT)
+#define ENETDMA_6345_PKTHALT_SHIFT 1
+#define ENETDMA_6345_PKTHALT_MASK (1 << ENETDMA_6345_PKTHALT_SHIFT)
+#define ENETDMA_6345_CHAINING_SHIFT 2
+#define ENETDMA_6345_CHAINING_MASK (1 << ENETDMA_6345_CHAINING_SHIFT)
+#define ENETDMA_6345_WRAP_EN_SHIFT 3
+#define ENETDMA_6345_WRAP_EN_MASK (1 << ENETDMA_6345_WRAP_EN_SHIFT)
+#define ENETDMA_6345_FLOWC_EN_SHIFT 4
+#define ENETDMA_6345_FLOWC_EN_MASK (1 << ENETDMA_6345_FLOWC_EN_SHIFT)
+
+#define ENETDMA_6345_MAXBURST_REG(x) (0x04 + (x) * 0x40)
+
+#define ENETDMA_6345_RSTART_REG(x) (0x08 + (x) * 0x40)
+
+#define ENETDMA_6345_LEN_REG(x) (0x0C + (x) * 0x40)
+
+#define ENETDMA_6345_BSTAT_REG(x) (0x10 + (x) * 0x40)
+
+#define ENETDMA_6345_IR_REG(x) (0x14 + (x) * 0x40)
+#define ENETDMA_6345_IR_BUFDONE_MASK (1 << 0)
+#define ENETDMA_6345_IR_PKTDONE_MASK (1 << 1)
+#define ENETDMA_6345_IR_NOTOWNER_MASK (1 << 2)
+
+#define ENETDMA_6345_IRMASK_REG(x) (0x18 + (x) * 0x40)
+
+#define ENETDMA_6345_FC_REG(x) (0x1C + (x) * 0x40)
+
+#define ENETDMA_6345_BUFALLOC_REG(x) (0x20 + (x) * 0x40)
/*************************************************************************
* _REG relative to RSET_ENETDMAC
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -32,6 +32,7 @@
#include <linux/if_vlan.h>
#include <bcm63xx_dev_enet.h>
+#include <bcm63xx_cpu.h>
#include "bcm63xx_enet.h"
static char bcm_enet_driver_name[] = "bcm63xx_enet";
@@ -243,6 +244,7 @@ static void bcm_enet_mdio_write_mii(stru
static int bcm_enet_refill_rx(struct net_device *dev)
{
struct bcm_enet_priv *priv;
+ unsigned int desc_shift = BCMCPU_IS_6345() ? DMADESC_6345_SHIFT : 0;
priv = netdev_priv(dev);
@@ -270,7 +272,7 @@ static int bcm_enet_refill_rx(struct net
len_stat = priv->rx_skb_size << DMADESC_LENGTH_SHIFT;
len_stat |= DMADESC_OWNER_MASK;
if (priv->rx_dirty_desc == priv->rx_ring_size - 1) {
- len_stat |= DMADESC_WRAP_MASK;
+ len_stat |= (DMADESC_WRAP_MASK >> desc_shift);
priv->rx_dirty_desc = 0;
} else {
priv->rx_dirty_desc++;
@@ -281,7 +283,10 @@ static int bcm_enet_refill_rx(struct net
priv->rx_desc_count++;
/* tell dma engine we allocated one buffer */
- enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan));
+ if (!BCMCPU_IS_6345())
+ enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan));
+ else
+ enet_dma_writel(priv, 1, ENETDMA_6345_BUFALLOC_REG(priv->rx_chan));
}
/* If rx ring is still empty, set a timer to try allocating
@@ -319,6 +324,7 @@ static int bcm_enet_receive_queue(struct
struct bcm_enet_priv *priv;
struct device *kdev;
int processed;
+ unsigned int desc_shift = BCMCPU_IS_6345() ? DMADESC_6345_SHIFT : 0;
priv = netdev_priv(dev);
kdev = &priv->pdev->dev;
@@ -357,7 +363,7 @@ static int bcm_enet_receive_queue(struct
/* if the packet does not have start of packet _and_
* end of packet flag set, then just recycle it */
- if ((len_stat & DMADESC_ESOP_MASK) != DMADESC_ESOP_MASK) {
+ if ((len_stat & (DMADESC_ESOP_MASK >> desc_shift)) != (DMADESC_ESOP_MASK >> desc_shift)) {
dev->stats.rx_dropped++;
continue;
}
@@ -418,8 +424,15 @@ static int bcm_enet_receive_queue(struct
bcm_enet_refill_rx(dev);
/* kick rx dma */
- enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
- ENETDMAC_CHANCFG_REG(priv->rx_chan));
+ if (!BCMCPU_IS_6345())
+ enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+ ENETDMAC_CHANCFG_REG(priv->rx_chan));
+ else
+ enet_dma_writel(priv, ENETDMA_6345_CHANCFG_EN_MASK |
+ ENETDMA_6345_CHAINING_MASK |
+ ENETDMA_6345_WRAP_EN_MASK |
+ ENETDMA_6345_FLOWC_EN_MASK,
+ ENETDMA_6345_CHANCFG_REG(priv->rx_chan));
}
return processed;
@@ -494,10 +507,21 @@ static int bcm_enet_poll(struct napi_str
dev = priv->net_dev;
/* ack interrupts */
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IR_REG(priv->rx_chan));
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IR_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IR_REG(priv->rx_chan));
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IR_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IR_REG(priv->rx_chan));
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IR_REG(priv->tx_chan));
+ }
/* reclaim sent skb */
tx_work_done = bcm_enet_tx_reclaim(dev, 0);
@@ -516,10 +540,21 @@ static int bcm_enet_poll(struct napi_str
napi_complete(napi);
/* restore rx/tx interrupt */
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IRMASK_REG(priv->rx_chan));
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IRMASK_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IRMASK_REG(priv->rx_chan));
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IRMASK_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IRMASK_REG(priv->rx_chan));
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IRMASK_REG(priv->tx_chan));
+ }
return rx_work_done;
}
@@ -562,8 +597,13 @@ static irqreturn_t bcm_enet_isr_dma(int
priv = netdev_priv(dev);
/* mask rx/tx interrupts */
- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, 0, ENETDMA_6345_IRMASK_REG(priv->rx_chan));
+ enet_dma_writel(priv, 0, ENETDMA_6345_IRMASK_REG(priv->tx_chan));
+ }
napi_schedule(&priv->napi);
@@ -579,6 +619,7 @@ static int bcm_enet_start_xmit(struct sk
struct bcm_enet_desc *desc;
u32 len_stat;
int ret;
+ unsigned int desc_shift = BCMCPU_IS_6345() ? DMADESC_6345_SHIFT : 0;
priv = netdev_priv(dev);
@@ -624,14 +665,14 @@ static int bcm_enet_start_xmit(struct sk
DMA_TO_DEVICE);
len_stat = (skb->len << DMADESC_LENGTH_SHIFT) & DMADESC_LENGTH_MASK;
- len_stat |= DMADESC_ESOP_MASK |
+ len_stat |= (DMADESC_ESOP_MASK >> desc_shift) |
DMADESC_APPEND_CRC |
DMADESC_OWNER_MASK;
priv->tx_curr_desc++;
if (priv->tx_curr_desc == priv->tx_ring_size) {
priv->tx_curr_desc = 0;
- len_stat |= DMADESC_WRAP_MASK;
+ len_stat |= (DMADESC_WRAP_MASK >> desc_shift);
}
priv->tx_desc_count--;
@@ -642,8 +683,15 @@ static int bcm_enet_start_xmit(struct sk
wmb();
/* kick tx dma */
- enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
- ENETDMAC_CHANCFG_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345())
+ enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+ ENETDMAC_CHANCFG_REG(priv->tx_chan));
+ else
+ enet_dma_writel(priv, ENETDMA_6345_CHANCFG_EN_MASK |
+ ENETDMA_6345_CHAINING_MASK |
+ ENETDMA_6345_WRAP_EN_MASK |
+ ENETDMA_6345_FLOWC_EN_MASK,
+ ENETDMA_6345_CHANCFG_REG(priv->tx_chan));
/* stop queue if no more desc available */
if (!priv->tx_desc_count)
@@ -771,6 +819,9 @@ static void bcm_enet_set_flow(struct bcm
val &= ~ENET_RXCFG_ENFLOW_MASK;
enet_writel(priv, val, ENET_RXCFG_REG);
+ if (BCMCPU_IS_6345())
+ return;
+
/* tx flow control (pause frame generation) */
val = enet_dma_readl(priv, ENETDMA_CFG_REG);
if (tx_en)
@@ -886,8 +937,13 @@ static int bcm_enet_open(struct net_devi
/* mask all interrupts and request them */
enet_writel(priv, 0, ENET_IRMASK_REG);
- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, 0, ENETDMA_6345_IRMASK_REG(priv->rx_chan));
+ enet_dma_writel(priv, 0, ENETDMA_6345_IRMASK_REG(priv->tx_chan));
+ }
ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev);
if (ret)
@@ -966,8 +1022,12 @@ static int bcm_enet_open(struct net_devi
priv->rx_curr_desc = 0;
/* initialize flow control buffer allocation */
- enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
- ENETDMA_BUFALLOC_REG(priv->rx_chan));
+ if (!BCMCPU_IS_6345())
+ enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
+ ENETDMA_BUFALLOC_REG(priv->rx_chan));
+ else
+ enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
+ ENETDMA_6345_BUFALLOC_REG(priv->rx_chan));
if (bcm_enet_refill_rx(dev)) {
dev_err(kdev, "cannot allocate rx skb queue\n");
@@ -976,37 +1036,62 @@ static int bcm_enet_open(struct net_devi
}
/* write rx & tx ring addresses */
- enet_dmas_writel(priv, priv->rx_desc_dma,
- ENETDMAS_RSTART_REG(priv->rx_chan));
- enet_dmas_writel(priv, priv->tx_desc_dma,
+ if (!BCMCPU_IS_6345()) {
+ enet_dmas_writel(priv, priv->rx_desc_dma,
+ ENETDMAS_RSTART_REG(priv->rx_chan));
+ enet_dmas_writel(priv, priv->tx_desc_dma,
ENETDMAS_RSTART_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, priv->rx_desc_dma,
+ ENETDMA_6345_RSTART_REG(priv->rx_chan));
+ enet_dma_writel(priv, priv->tx_desc_dma,
+ ENETDMA_6345_RSTART_REG(priv->tx_chan));
+ }
/* clear remaining state ram for rx & tx channel */
- enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->rx_chan));
- enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->tx_chan));
- enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->rx_chan));
- enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->tx_chan));
- enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->rx_chan));
- enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->rx_chan));
+ enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->tx_chan));
+ enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->rx_chan));
+ enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->tx_chan));
+ enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->rx_chan));
+ enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, 0, ENETDMA_6345_FC_REG(priv->rx_chan));
+ enet_dma_writel(priv, 0, ENETDMA_6345_FC_REG(priv->tx_chan));
+ }
/* set max rx/tx length */
enet_writel(priv, priv->hw_mtu, ENET_RXMAXLEN_REG);
enet_writel(priv, priv->hw_mtu, ENET_TXMAXLEN_REG);
/* set dma maximum burst len */
- enet_dmac_writel(priv, priv->dma_maxburst,
- ENETDMAC_MAXBURST_REG(priv->rx_chan));
- enet_dmac_writel(priv, priv->dma_maxburst,
- ENETDMAC_MAXBURST_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, priv->dma_maxburst,
+ ENETDMAC_MAXBURST_REG(priv->rx_chan));
+ enet_dmac_writel(priv, priv->dma_maxburst,
+ ENETDMAC_MAXBURST_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, BCMENET_DMA_MAXBURST,
+ ENETDMA_6345_MAXBURST_REG(priv->rx_chan));
+ enet_dma_writel(priv, BCMENET_DMA_MAXBURST,
+ ENETDMA_6345_MAXBURST_REG(priv->tx_chan));
+ }
/* set correct transmit fifo watermark */
enet_writel(priv, BCMENET_TX_FIFO_TRESH, ENET_TXWMARK_REG);
/* set flow control low/high threshold to 1/3 / 2/3 */
- val = priv->rx_ring_size / 3;
- enet_dma_writel(priv, val, ENETDMA_FLOWCL_REG(priv->rx_chan));
- val = (priv->rx_ring_size * 2) / 3;
- enet_dma_writel(priv, val, ENETDMA_FLOWCH_REG(priv->rx_chan));
+ if (!BCMCPU_IS_6345()) {
+ val = priv->rx_ring_size / 3;
+ enet_dma_writel(priv, val, ENETDMA_FLOWCL_REG(priv->rx_chan));
+ val = (priv->rx_ring_size * 2) / 3;
+ enet_dma_writel(priv, val, ENETDMA_FLOWCH_REG(priv->rx_chan));
+ } else {
+ enet_dma_writel(priv, 5, ENETDMA_6345_FC_REG(priv->rx_chan));
+ enet_dma_writel(priv, priv->rx_ring_size, ENETDMA_6345_LEN_REG(priv->rx_chan));
+ enet_dma_writel(priv, priv->tx_ring_size, ENETDMA_6345_LEN_REG(priv->tx_chan));
+ }
/* all set, enable mac and interrupts, start dma engine and
* kick rx dma channel */
@@ -1014,27 +1099,57 @@ static int bcm_enet_open(struct net_devi
val = enet_readl(priv, ENET_CTL_REG);
val |= ENET_CTL_ENABLE_MASK;
enet_writel(priv, val, ENET_CTL_REG);
- enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
- enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
- ENETDMAC_CHANCFG_REG(priv->rx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
+ enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+ ENETDMAC_CHANCFG_REG(priv->rx_chan));
+ } else {
+ enet_dma_writel(priv, ENETDMA_6345_CHANCFG_EN_MASK |
+ ENETDMA_6345_CHAINING_MASK |
+ ENETDMA_6345_WRAP_EN_MASK |
+ ENETDMA_6345_FLOWC_EN_MASK,
+ ENETDMA_6345_CHANCFG_REG(priv->rx_chan));
+ }
/* watch "mib counters about to overflow" interrupt */
enet_writel(priv, ENET_IR_MIB, ENET_IR_REG);
enet_writel(priv, ENET_IR_MIB, ENET_IRMASK_REG);
/* watch "packet transferred" interrupt in rx and tx */
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IR_REG(priv->rx_chan));
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IR_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IR_REG(priv->rx_chan));
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IR_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IR_REG(priv->rx_chan));
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IR_REG(priv->tx_chan));
+ }
/* make sure we enable napi before rx interrupt */
napi_enable(&priv->napi);
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IRMASK_REG(priv->rx_chan));
- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
- ENETDMAC_IRMASK_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IRMASK_REG(priv->rx_chan));
+ enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+ ENETDMAC_IRMASK_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IRMASK_REG(priv->rx_chan));
+ enet_dma_writel(priv, ENETDMA_IR_BUFDONE_MASK |
+ ENETDMA_IR_PKTDONE_MASK |
+ ENETDMA_IR_NOTOWNER_MASK,
+ ENETDMA_6345_IRMASK_REG(priv->tx_chan));
+ }
if (priv->has_phy)
phy_start(priv->phydev);
@@ -1111,13 +1226,19 @@ static void bcm_enet_disable_dma(struct
{
int limit;
- enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG_REG(chan));
+ if (!BCMCPU_IS_6345())
+ enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG_REG(chan));
+ else
+ enet_dma_writel(priv, 0, ENETDMA_6345_CHANCFG_REG(chan));
limit = 1000;
do {
u32 val;
- val = enet_dmac_readl(priv, ENETDMAC_CHANCFG_REG(chan));
+ if (!BCMCPU_IS_6345())
+ val = enet_dmac_readl(priv, ENETDMAC_CHANCFG_REG(chan));
+ else
+ val = enet_dma_readl(priv, ENETDMA_6345_CHANCFG_REG(chan));
if (!(val & ENETDMAC_CHANCFG_EN_MASK))
break;
udelay(1);
@@ -1144,8 +1265,13 @@ static int bcm_enet_stop(struct net_devi
/* mask all interrupts */
enet_writel(priv, 0, ENET_IRMASK_REG);
- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+ if (!BCMCPU_IS_6345()) {
+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+ } else {
+ enet_dma_writel(priv, 0, ENETDMA_6345_IRMASK_REG(priv->rx_chan));
+ enet_dma_writel(priv, 0, ENETDMA_6345_IRMASK_REG(priv->tx_chan));
+ }
/* make sure no mib update is scheduled */
cancel_work_sync(&priv->mib_update_task);
@@ -1680,6 +1806,7 @@ static int __devinit bcm_enet_probe(stru
struct mii_bus *bus;
const char *clk_name;
int i, ret;
+ unsigned int chan_offset = 0;
/* stop if shared driver failed, assume driver->probe will be
* called in the same order we register devices (correct ?) */
@@ -1722,10 +1849,13 @@ static int __devinit bcm_enet_probe(stru
priv->irq_tx = res_irq_tx->start;
priv->mac_id = pdev->id;
+ if (BCMCPU_IS_6345())
+ chan_offset = 1;
+
/* get rx & tx dma channel id for this mac */
if (priv->mac_id == 0) {
- priv->rx_chan = 0;
- priv->tx_chan = 1;
+ priv->rx_chan = 0 + chan_offset;
+ priv->tx_chan = 1 + chan_offset;
clk_name = "enet0";
} else {
priv->rx_chan = 2;
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
@@ -47,6 +47,9 @@ struct bcm_enet_desc {
#define DMADESC_ESOP_MASK (DMADESC_EOP_MASK | DMADESC_SOP_MASK)
#define DMADESC_WRAP_MASK (1 << 12)
+/* Shift down for EOP, SOP and WRAP bits */
+#define DMADESC_6345_SHIFT (3)
+
#define DMADESC_UNDER_MASK (1 << 9)
#define DMADESC_APPEND_CRC (1 << 8)
#define DMADESC_OVSIZE_MASK (1 << 4)