diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.8/419-MIPS-BCM63XX-enable-enet-for-BCM6345.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.8/419-MIPS-BCM63XX-enable-enet-for-BCM6345.patch | 805 |
1 files changed, 0 insertions, 805 deletions
diff --git a/target/linux/brcm63xx/patches-3.8/419-MIPS-BCM63XX-enable-enet-for-BCM6345.patch b/target/linux/brcm63xx/patches-3.8/419-MIPS-BCM63XX-enable-enet-for-BCM6345.patch deleted file mode 100644 index c0a319b7ef..0000000000 --- a/target/linux/brcm63xx/patches-3.8/419-MIPS-BCM63XX-enable-enet-for-BCM6345.patch +++ /dev/null @@ -1,805 +0,0 @@ -From 1b0b5d325d0cc50cade62afd6a9416fb3cd1e658 Mon Sep 17 00:00:00 2001 -From: Jonas Gorski <jogo@openwrt.org> -Date: Mon, 7 Jan 2013 17:42:45 +0100 -Subject: [PATCH 69/72] 443-MIPS-BCM63XX-enable-enet-for-BCM6345.patch - ---- - arch/mips/bcm63xx/dev-enet.c | 63 ++++++- - arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 3 +- - .../include/asm/mach-bcm63xx/bcm63xx_dev_enet.h | 88 +++++++++ - arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 43 ++++- - drivers/net/ethernet/broadcom/bcm63xx_enet.c | 199 ++++++++++++-------- - drivers/net/ethernet/broadcom/bcm63xx_enet.h | 15 ++ - 6 files changed, 320 insertions(+), 91 deletions(-) - ---- a/arch/mips/bcm63xx/dev-enet.c -+++ b/arch/mips/bcm63xx/dev-enet.c -@@ -9,10 +9,44 @@ - #include <linux/init.h> - #include <linux/kernel.h> - #include <linux/platform_device.h> -+#include <linux/export.h> - #include <bcm63xx_dev_enet.h> - #include <bcm63xx_io.h> - #include <bcm63xx_regs.h> - -+#ifdef BCMCPU_RUNTIME_DETECT -+static const unsigned long bcm6xxx_regs_enetdmac[] = { -+ [ENETDMAC_CHANCFG] = ENETDMAC_CHANCFG_REG, -+ [ENETDMAC_IR] = ENETDMAC_IR_REG, -+ [ENETDMAC_IRMASK] = ENETDMAC_IRMASK_REG, -+ [ENETDMAC_MAXBURST] = ENETDMAC_MAXBURST_REG, -+}; -+ -+static const unsigned long bcm6345_regs_enetdmac[] = { -+ [ENETDMAC_CHANCFG] = ENETDMA_6345_CHANCFG_REG, -+ [ENETDMAC_IR] = ENETDMA_6345_IR_REG, -+ [ENETDMAC_IRMASK] = ENETDMA_6345_IRMASK_REG, -+ [ENETDMAC_MAXBURST] = ENETDMA_6345_MAXBURST_REG, -+ [ENETDMAC_BUFALLOC] = ENETDMA_6345_BUFALLOC_REG, -+ [ENETDMAC_RSTART] = ENETDMA_6345_RSTART_REG, -+ [ENETDMAC_FC] = ENETDMA_6345_FC_REG, -+ [ENETDMAC_LEN] = ENETDMA_6345_LEN_REG, -+}; -+ -+const unsigned long *bcm63xx_regs_enetdmac; -+EXPORT_SYMBOL(bcm63xx_regs_enetdmac); -+ -+static __init void bcm63xx_enetdmac_regs_init(void) -+{ -+ if (BCMCPU_IS_6345()) -+ bcm63xx_regs_enetdmac = bcm6345_regs_enetdmac; -+ else -+ bcm63xx_regs_enetdmac = bcm6xxx_regs_enetdmac; -+} -+#else -+static __init void bcm63xx_enetdmac_regs_init(void) { } -+#endif -+ - static struct resource shared_res[] = { - { - .start = -1, /* filled at runtime */ -@@ -137,12 +171,19 @@ static int __init register_shared(void) - if (shared_device_registered) - return 0; - -+ bcm63xx_enetdmac_regs_init(); -+ - shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA); - shared_res[0].end = shared_res[0].start; -- shared_res[0].end += (RSET_ENETDMA_SIZE) - 1; -+ if (BCMCPU_IS_6345()) -+ shared_res[0].end += (RSET_6345_ENETDMA_SIZE) - 1; -+ else -+ shared_res[0].end += (RSET_ENETDMA_SIZE) - 1; - - if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368()) - chan_count = 32; -+ else if (BCMCPU_IS_6345()) -+ chan_count = 8; - else - chan_count = 16; - -@@ -172,7 +213,7 @@ 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(); -@@ -213,6 +254,20 @@ int __init bcm63xx_enet_register(int uni - dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY); - } - -+ dpd->dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK; -+ dpd->dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK; -+ if (BCMCPU_IS_6345()) { -+ dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_CHAINING_MASK; -+ dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_WRAP_EN_MASK; -+ dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_FLOWC_EN_MASK; -+ dpd->dma_chan_int_mask |= ENETDMA_IR_BUFDONE_MASK; -+ dpd->dma_chan_int_mask |= ENETDMA_IR_NOTOWNER_MASK; -+ dpd->dma_chan_width = ENETDMA_6345_CHAN_WIDTH; -+ dpd->dma_no_sram = 1; -+ dpd->dma_desc_shift = ENETDMA_6345_DESC_SHIFT; -+ } else -+ dpd->dma_chan_width = ENETDMA_CHAN_WIDTH; -+ - ret = platform_device_register(pdev); - if (ret) - return ret; -@@ -246,6 +301,10 @@ bcm63xx_enetsw_register(const struct bcm - else if (BCMCPU_IS_6362() || BCMCPU_IS_6368()) - enetsw_pd.num_ports = ENETSW_PORTS_6368; - -+ enetsw_pd.dma_chan_width = ENETDMA_CHAN_WIDTH; -+ enetsw_pd.dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK; -+ enetsw_pd.dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK; -+ - ret = platform_device_register(&bcm63xx_enetsw_device); - if (ret) - return ret; ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h -@@ -175,6 +175,7 @@ enum bcm63xx_regs_set { - #define BCM_6368_RSET_SPI_SIZE 1804 - #define RSET_ENET_SIZE 2048 - #define RSET_ENETDMA_SIZE 256 -+#define RSET_6345_ENETDMA_SIZE 64 - #define RSET_ENETDMAC_SIZE(chans) (16 * (chans)) - #define RSET_ENETDMAS_SIZE(chans) (16 * (chans)) - #define RSET_ENETSW_SIZE 65536 -@@ -305,7 +306,7 @@ enum bcm63xx_regs_set { - #define BCM_6345_USBDMA_BASE (0xfffe2800) - #define BCM_6345_ENET0_BASE (0xfffe1800) - #define BCM_6345_ENETDMA_BASE (0xfffe2800) --#define BCM_6345_ENETDMAC_BASE (0xfffe2900) -+#define BCM_6345_ENETDMAC_BASE (0xfffe2840) - #define BCM_6345_ENETDMAS_BASE (0xfffe2a00) - #define BCM_6345_ENETSW_BASE (0xdeadbeef) - #define BCM_6345_PCMCIA_BASE (0xfffe2028) ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h -@@ -4,6 +4,8 @@ - #include <linux/if_ether.h> - #include <linux/init.h> - -+#include <bcm63xx_regs.h> -+ - /* - * on board ethernet platform data - */ -@@ -37,6 +39,21 @@ struct bcm63xx_enet_platform_data { - int phy_id, int reg), - void (*mii_write)(struct net_device *dev, - int phy_id, int reg, int val)); -+ -+ /* DMA channel enable mask */ -+ u32 dma_chan_en_mask; -+ -+ /* DMA channel interrupt mask */ -+ u32 dma_chan_int_mask; -+ -+ /* Set to one if DMA engine has *no* SRAM */ -+ unsigned int dma_no_sram; -+ -+ /* DMA channel register width */ -+ unsigned int dma_chan_width; -+ -+ /* DMA descriptor shift */ -+ unsigned int dma_desc_shift; - }; - - /* -@@ -63,6 +80,15 @@ struct bcm63xx_enetsw_platform_data { - char mac_addr[ETH_ALEN]; - int num_ports; - struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT]; -+ -+ /* DMA channel enable mask */ -+ u32 dma_chan_en_mask; -+ -+ /* DMA channel interrupt mask */ -+ u32 dma_chan_int_mask; -+ -+ /* DMA channel register width */ -+ unsigned int dma_chan_width; - }; - - int __init bcm63xx_enet_register(int unit, -@@ -70,4 +96,69 @@ int __init bcm63xx_enet_register(int uni - - int bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd); - -+enum bcm63xx_regs_enetdmac { -+ ENETDMAC_CHANCFG, -+ ENETDMAC_IR, -+ ENETDMAC_IRMASK, -+ ENETDMAC_MAXBURST, -+ ENETDMAC_BUFALLOC, -+ ENETDMAC_RSTART, -+ ENETDMAC_FC, -+ ENETDMAC_LEN, -+}; -+ -+static inline unsigned long bcm63xx_enetdmacreg(enum bcm63xx_regs_enetdmac reg) -+{ -+#ifdef BCMCPU_RUNTIME_DETECT -+ extern const unsigned long *bcm63xx_regs_enetdmac; -+ -+ return bcm63xx_regs_enetdmac[reg]; -+#else -+#ifdef CONFIG_BCM63XX_CPU_6345 -+ switch (reg) { -+ case ENETDMAC_CHANCFG: -+ return ENETDMA_6345_CHANCFG_REG; -+ case ENETDMAC_IR: -+ return ENETDMA_6345_IR_REG; -+ case ENETDMAC_IRMASK: -+ return ENETDMA_6345_IRMASK_REG; -+ case ENETDMAC_MAXBURST: -+ return ENETDMA_6345_MAXBURST_REG; -+ case ENETDMAC_BUFALLOC: -+ return ENETDMA_6345_BUFALLOC_REG; -+ case ENETDMAC_RSTART: -+ return ENETDMA_6345_RSTART_REG; -+ case ENETDMAC_FC: -+ return ENETDMA_6345_FC_REG; -+ case ENETDMAC_LEN: -+ return ENETDMA_6345_LEN_REG; -+ } -+#endif -+#if defined(CONFIG_BCM63XX_CPU_6328) || \ -+ defined(CONFIG_BCM63XX_CPU_6338) || \ -+ defined(CONFIG_BCM63XX_CPU_6348) || \ -+ defined(CONFIG_BCM63XX_CPU_6358) || \ -+ defined(CONFIG_BCM63XX_CPU_6362) || \ -+ defined(CONFIG_BCM63XX_CPU_6368) -+ switch (reg) { -+ case ENETDMAC_CHANCFG: -+ return ENETDMAC_CHANCFG_REG; -+ case ENETDMAC_IR: -+ return ENETDMAC_IR_REG; -+ case ENETDMAC_IRMASK: -+ return ENETDMAC_IRMASK_REG; -+ case ENETDMAC_MAXBURST: -+ return ENETDMAC_MAXBURST_REG; -+ case ENETDMAC_BUFALLOC: -+ case ENETDMAC_RSTART: -+ case ENETDMAC_FC: -+ case ENETDMAC_LEN: -+ return 0; -+ } -+#endif -+#endif -+ return 0; -+} -+ -+ - #endif /* ! BCM63XX_DEV_ENET_H_ */ ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -@@ -730,6 +730,8 @@ - /************************************************************************* - * _REG relative to RSET_ENETDMA - *************************************************************************/ -+#define ENETDMA_CHAN_WIDTH 0x10 -+#define ENETDMA_6345_CHAN_WIDTH 0x40 - - /* Controller Configuration Register */ - #define ENETDMA_CFG_REG (0x0) -@@ -785,31 +787,56 @@ - /* State Ram Word 4 */ - #define ENETDMA_SRAM4_REG(x) (0x20c + (x) * 0x10) - -+/* Broadcom 6345 ENET DMA definitions */ -+#define ENETDMA_6345_CHANCFG_REG (0x00) -+ -+#define ENETDMA_6345_MAXBURST_REG (0x40) -+ -+#define ENETDMA_6345_RSTART_REG (0x08) -+ -+#define ENETDMA_6345_LEN_REG (0x0C) -+ -+#define ENETDMA_6345_IR_REG (0x14) -+ -+#define ENETDMA_6345_IRMASK_REG (0x18) -+ -+#define ENETDMA_6345_FC_REG (0x1C) -+ -+#define ENETDMA_6345_BUFALLOC_REG (0x20) -+ -+/* Shift down for EOP, SOP and WRAP bits */ -+#define ENETDMA_6345_DESC_SHIFT (3) - - /************************************************************************* - * _REG relative to RSET_ENETDMAC - *************************************************************************/ - - /* Channel Configuration register */ --#define ENETDMAC_CHANCFG_REG(x) ((x) * 0x10) -+#define ENETDMAC_CHANCFG_REG (0x0) - #define ENETDMAC_CHANCFG_EN_SHIFT 0 - #define ENETDMAC_CHANCFG_EN_MASK (1 << ENETDMAC_CHANCFG_EN_SHIFT) - #define ENETDMAC_CHANCFG_PKTHALT_SHIFT 1 - #define ENETDMAC_CHANCFG_PKTHALT_MASK (1 << ENETDMAC_CHANCFG_PKTHALT_SHIFT) - #define ENETDMAC_CHANCFG_BUFHALT_SHIFT 2 - #define ENETDMAC_CHANCFG_BUFHALT_MASK (1 << ENETDMAC_CHANCFG_BUFHALT_SHIFT) -+#define ENETDMAC_CHANCFG_CHAINING_SHIFT 2 -+#define ENETDMAC_CHANCFG_CHAINING_MASK (1 << ENETDMAC_CHANCFG_CHAINING_SHIFT) -+#define ENETDMAC_CHANCFG_WRAP_EN_SHIFT 3 -+#define ENETDMAC_CHANCFG_WRAP_EN_MASK (1 << ENETDMAC_CHANCFG_WRAP_EN_SHIFT) -+#define ENETDMAC_CHANCFG_FLOWC_EN_SHIFT 4 -+#define ENETDMAC_CHANCFG_FLOWC_EN_MASK (1 << ENETDMAC_CHANCFG_FLOWC_EN_SHIFT) - - /* Interrupt Control/Status register */ --#define ENETDMAC_IR_REG(x) (0x4 + (x) * 0x10) -+#define ENETDMAC_IR_REG (0x4) - #define ENETDMAC_IR_BUFDONE_MASK (1 << 0) - #define ENETDMAC_IR_PKTDONE_MASK (1 << 1) - #define ENETDMAC_IR_NOTOWNER_MASK (1 << 2) - - /* Interrupt Mask register */ --#define ENETDMAC_IRMASK_REG(x) (0x8 + (x) * 0x10) -+#define ENETDMAC_IRMASK_REG (0x8) - - /* Maximum Burst Length */ --#define ENETDMAC_MAXBURST_REG(x) (0xc + (x) * 0x10) -+#define ENETDMAC_MAXBURST_REG (0xc) - - - /************************************************************************* -@@ -817,16 +844,16 @@ - *************************************************************************/ - - /* Ring Start Address register */ --#define ENETDMAS_RSTART_REG(x) ((x) * 0x10) -+#define ENETDMAS_RSTART_REG (0x0) - - /* State Ram Word 2 */ --#define ENETDMAS_SRAM2_REG(x) (0x4 + (x) * 0x10) -+#define ENETDMAS_SRAM2_REG (0x4) - - /* State Ram Word 3 */ --#define ENETDMAS_SRAM3_REG(x) (0x8 + (x) * 0x10) -+#define ENETDMAS_SRAM3_REG (0x8) - - /* State Ram Word 4 */ --#define ENETDMAS_SRAM4_REG(x) (0xc + (x) * 0x10) -+#define ENETDMAS_SRAM4_REG (0xc) - - - /************************************************************************* ---- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c -+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c -@@ -115,26 +115,28 @@ static inline void enet_dma_writel(struc - bcm_writel(val, bcm_enet_shared_base[0] + off); - } - --static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off) -+static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off, int chan) - { -- return bcm_readl(bcm_enet_shared_base[1] + off); -+ return bcm_readl(bcm_enet_shared_base[1] + -+ (bcm63xx_enetdmacreg(off) + (chan * priv->dma_chan_width))); - } - - static inline void enet_dmac_writel(struct bcm_enet_priv *priv, -- u32 val, u32 off) -+ u32 val, u32 off, int chan) - { -- bcm_writel(val, bcm_enet_shared_base[1] + off); -+ bcm_writel(val, bcm_enet_shared_base[1] + -+ (bcm63xx_enetdmacreg(off) + (chan * priv->dma_chan_width))); - } - --static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off) -+static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off, int chan) - { -- return bcm_readl(bcm_enet_shared_base[2] + off); -+ return bcm_readl(bcm_enet_shared_base[2] + (off + (chan * priv->dma_chan_width))); - } - - static inline void enet_dmas_writel(struct bcm_enet_priv *priv, -- u32 val, u32 off) -+ u32 val, u32 off, int chan) - { -- bcm_writel(val, bcm_enet_shared_base[2] + off); -+ bcm_writel(val, bcm_enet_shared_base[2] + (off + (chan * priv->dma_chan_width))); - } - - /* -@@ -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 >> priv->dma_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 (!priv->dma_no_sram) -+ enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan)); -+ else -+ enet_dmac_writel(priv, 1, ENETDMAC_BUFALLOC, priv->rx_chan); - } - - /* If rx ring is still empty, set a timer to try allocating -@@ -357,7 +362,8 @@ 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 >> priv->dma_desc_shift)) != -+ (DMADESC_ESOP_MASK >> priv->dma_desc_shift)) { - dev->stats.rx_dropped++; - continue; - } -@@ -418,8 +424,8 @@ 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)); -+ enet_dmac_writel(priv, priv->dma_chan_en_mask, -+ ENETDMAC_CHANCFG, priv->rx_chan); - } - - return processed; -@@ -494,10 +500,10 @@ 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)); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IR, priv->rx_chan); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IR, priv->tx_chan); - - /* reclaim sent skb */ - tx_work_done = bcm_enet_tx_reclaim(dev, 0); -@@ -516,10 +522,10 @@ 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)); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IRMASK, priv->tx_chan); - - return rx_work_done; - } -@@ -562,8 +568,8 @@ 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)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan); - - napi_schedule(&priv->napi); - -@@ -624,14 +630,14 @@ 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 >> priv->dma_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 >> priv->dma_desc_shift); - } - priv->tx_desc_count--; - -@@ -642,8 +648,8 @@ 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)); -+ enet_dmac_writel(priv, priv->dma_chan_en_mask, -+ ENETDMAC_CHANCFG, priv->tx_chan); - - /* stop queue if no more desc available */ - if (!priv->tx_desc_count) -@@ -771,6 +777,9 @@ static void bcm_enet_set_flow(struct bcm - val &= ~ENET_RXCFG_ENFLOW_MASK; - enet_writel(priv, val, ENET_RXCFG_REG); - -+ if (priv->dma_no_sram) -+ return; -+ - /* tx flow control (pause frame generation) */ - val = enet_dma_readl(priv, ENETDMA_CFG_REG); - if (tx_en) -@@ -886,8 +895,8 @@ 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)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan); - - ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev); - if (ret) -@@ -966,8 +975,12 @@ 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 (!priv->dma_no_sram) -+ enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0, -+ ENETDMA_BUFALLOC_REG(priv->rx_chan)); -+ else -+ enet_dmac_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0, -+ ENETDMAC_BUFALLOC, priv->rx_chan); - - if (bcm_enet_refill_rx(dev)) { - dev_err(kdev, "cannot allocate rx skb queue\n"); -@@ -976,18 +989,30 @@ 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, -- ENETDMAS_RSTART_REG(priv->tx_chan)); -+ if (!priv->dma_no_sram) { -+ 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_dmac_writel(priv, priv->rx_desc_dma, -+ ENETDMAC_RSTART, priv->rx_chan); -+ enet_dmac_writel(priv, priv->tx_desc_dma, -+ ENETDMAC_RSTART, 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 (!priv->dma_no_sram) { -+ 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_dmac_writel(priv, 0, ENETDMAC_FC, priv->rx_chan); -+ enet_dmac_writel(priv, 0, ENETDMAC_FC, priv->tx_chan); -+ } - - /* set max rx/tx length */ - enet_writel(priv, priv->hw_mtu, ENET_RXMAXLEN_REG); -@@ -995,18 +1020,24 @@ static int bcm_enet_open(struct net_devi - - /* set dma maximum burst len */ - enet_dmac_writel(priv, priv->dma_maxburst, -- ENETDMAC_MAXBURST_REG(priv->rx_chan)); -+ ENETDMAC_MAXBURST, priv->rx_chan); - enet_dmac_writel(priv, priv->dma_maxburst, -- ENETDMAC_MAXBURST_REG(priv->tx_chan)); -+ ENETDMAC_MAXBURST, 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 (!priv->dma_no_sram) { -+ 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_dmac_writel(priv, 5, ENETDMAC_FC, priv->rx_chan); -+ enet_dmac_writel(priv, priv->rx_ring_size, ENETDMAC_LEN, priv->rx_chan); -+ enet_dmac_writel(priv, priv->tx_ring_size, ENETDMAC_LEN, priv->tx_chan); -+ } - - /* all set, enable mac and interrupts, start dma engine and - * kick rx dma channel */ -@@ -1015,26 +1046,26 @@ static int bcm_enet_open(struct net_devi - 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)); -+ enet_dmac_writel(priv, priv->dma_chan_en_mask, -+ ENETDMAC_CHANCFG, 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)); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IR, priv->rx_chan); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IR, 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)); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, priv->dma_chan_int_mask, -+ ENETDMAC_IRMASK, priv->tx_chan); - - if (priv->has_phy) - phy_start(priv->phydev); -@@ -1111,13 +1142,13 @@ static void bcm_enet_disable_dma(struct - { - int limit; - -- enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG_REG(chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG, chan); - - limit = 1000; - do { - u32 val; - -- val = enet_dmac_readl(priv, ENETDMAC_CHANCFG_REG(chan)); -+ val = enet_dmac_readl(priv, ENETDMAC_CHANCFG, chan); - if (!(val & ENETDMAC_CHANCFG_EN_MASK)) - break; - udelay(1); -@@ -1144,8 +1175,8 @@ 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)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan); - - /* make sure no mib update is scheduled */ - cancel_work_sync(&priv->mib_update_task); -@@ -1752,6 +1783,11 @@ static int bcm_enet_probe(struct platfor - priv->pause_tx = pd->pause_tx; - priv->force_duplex_full = pd->force_duplex_full; - priv->force_speed_100 = pd->force_speed_100; -+ priv->dma_chan_en_mask = pd->dma_chan_en_mask; -+ priv->dma_chan_int_mask = pd->dma_chan_int_mask; -+ priv->dma_chan_width = pd->dma_chan_width; -+ priv->dma_no_sram = pd->dma_no_sram; -+ priv->dma_desc_shift = pd->dma_desc_shift; - } - - if (priv->mac_id == 0 && priv->has_phy && !priv->use_external_mii) { -@@ -2123,8 +2159,8 @@ static int bcm_enetsw_open(struct net_de - kdev = &priv->pdev->dev; - - /* mask all interrupts and request them */ -- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan)); -- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan); - - ret = request_irq(priv->irq_rx, bcm_enet_isr_dma, - IRQF_DISABLED, dev->name, dev); -@@ -2248,23 +2284,23 @@ static int bcm_enetsw_open(struct net_de - - /* write rx & tx ring addresses */ - enet_dmas_writel(priv, priv->rx_desc_dma, -- ENETDMAS_RSTART_REG(priv->rx_chan)); -+ ENETDMAS_RSTART_REG, priv->rx_chan); - enet_dmas_writel(priv, priv->tx_desc_dma, -- ENETDMAS_RSTART_REG(priv->tx_chan)); -+ ENETDMAS_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)); -+ 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); - - /* set dma maximum burst len */ - enet_dmac_writel(priv, priv->dma_maxburst, -- ENETDMAC_MAXBURST_REG(priv->rx_chan)); -+ ENETDMAC_MAXBURST, priv->rx_chan); - enet_dmac_writel(priv, priv->dma_maxburst, -- ENETDMAC_MAXBURST_REG(priv->tx_chan)); -+ ENETDMAC_MAXBURST, priv->tx_chan); - - /* set flow control low/high threshold to 1/3 / 2/3 */ - val = priv->rx_ring_size / 3; -@@ -2277,21 +2313,21 @@ static int bcm_enetsw_open(struct net_de - wmb(); - 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)); -+ ENETDMAC_CHANCFG, priv->rx_chan); - - /* watch "packet transferred" interrupt in rx and tx */ - enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK, -- ENETDMAC_IR_REG(priv->rx_chan)); -+ ENETDMAC_IR, priv->rx_chan); - enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK, -- ENETDMAC_IR_REG(priv->tx_chan)); -+ ENETDMAC_IR, 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)); -+ ENETDMAC_IRMASK, priv->rx_chan); - enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK, -- ENETDMAC_IRMASK_REG(priv->tx_chan)); -+ ENETDMAC_IRMASK, priv->tx_chan); - - netif_carrier_on(dev); - netif_start_queue(dev); -@@ -2397,8 +2433,8 @@ static int bcm_enetsw_stop(struct net_de - del_timer_sync(&priv->rx_timeout); - - /* mask all interrupts */ -- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan)); -- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan); - - /* disable dma & mac */ - bcm_enet_disable_dma(priv, priv->tx_chan); -@@ -2736,6 +2772,9 @@ static int bcm_enetsw_probe(struct platf - memcpy(priv->used_ports, pd->used_ports, - sizeof (pd->used_ports)); - priv->num_ports = pd->num_ports; -+ priv->dma_chan_en_mask = pd->dma_chan_en_mask; -+ priv->dma_chan_int_mask = pd->dma_chan_int_mask; -+ priv->dma_chan_width = pd->dma_chan_width; - } - - ret = compute_hw_mtu(priv, dev->mtu); ---- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h -+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h -@@ -339,6 +339,21 @@ struct bcm_enet_priv { - /* used to poll switch port state */ - struct timer_list swphy_poll; - spinlock_t enetsw_mdio_lock; -+ -+ /* dma channel enable mask */ -+ u32 dma_chan_en_mask; -+ -+ /* dma channel interrupt mask */ -+ u32 dma_chan_int_mask; -+ -+ /* dma engine has *no* internal SRAM */ -+ unsigned int dma_no_sram; -+ -+ /* dma channel width */ -+ unsigned int dma_chan_width; -+ -+ /* dma descriptor shift value */ -+ unsigned int dma_desc_shift; - }; - - static inline int bcm_enet_port_is_rgmii(int portid) |