diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.8/414-bcm63xx_enet-split-dma-registers-access.patch')
-rw-r--r-- | target/linux/brcm63xx/patches-3.8/414-bcm63xx_enet-split-dma-registers-access.patch | 381 |
1 files changed, 0 insertions, 381 deletions
diff --git a/target/linux/brcm63xx/patches-3.8/414-bcm63xx_enet-split-dma-registers-access.patch b/target/linux/brcm63xx/patches-3.8/414-bcm63xx_enet-split-dma-registers-access.patch deleted file mode 100644 index a194685e2..000000000 --- a/target/linux/brcm63xx/patches-3.8/414-bcm63xx_enet-split-dma-registers-access.patch +++ /dev/null @@ -1,381 +0,0 @@ -From 305579c1f946ed1aa6c125252ace21c53d47c11d Mon Sep 17 00:00:00 2001 -From: Maxime Bizon <mbizon@freebox.fr> -Date: Thu, 21 Jan 2010 17:50:54 +0100 -Subject: [PATCH 30/63] bcm63xx_enet: split dma registers access. - ---- - arch/mips/bcm63xx/dev-enet.c | 23 +++- - arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 4 +- - drivers/net/ethernet/broadcom/bcm63xx_enet.c | 179 ++++++++++++++-------- - 3 files changed, 138 insertions(+), 68 deletions(-) - ---- a/arch/mips/bcm63xx/dev-enet.c -+++ b/arch/mips/bcm63xx/dev-enet.c -@@ -19,6 +19,16 @@ static struct resource shared_res[] = { - .end = -1, /* filled at runtime */ - .flags = IORESOURCE_MEM, - }, -+ { -+ .start = -1, /* filled at runtime */ -+ .end = -1, /* filled at runtime */ -+ .flags = IORESOURCE_MEM, -+ }, -+ { -+ .start = -1, /* filled at runtime */ -+ .end = -1, /* filled at runtime */ -+ .flags = IORESOURCE_MEM, -+ }, - }; - - static struct platform_device bcm63xx_enet_shared_device = { -@@ -110,10 +120,15 @@ int __init bcm63xx_enet_register(int uni - if (!shared_device_registered) { - shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA); - shared_res[0].end = shared_res[0].start; -- if (BCMCPU_IS_6338()) -- shared_res[0].end += (RSET_ENETDMA_SIZE / 2) - 1; -- else -- shared_res[0].end += (RSET_ENETDMA_SIZE) - 1; -+ shared_res[0].end += (RSET_ENETDMA_SIZE) - 1; -+ -+ shared_res[1].start = bcm63xx_regset_address(RSET_ENETDMAC); -+ shared_res[1].end = shared_res[1].start; -+ shared_res[1].end += RSET_ENETDMAC_SIZE(16) - 1; -+ -+ shared_res[2].start = bcm63xx_regset_address(RSET_ENETDMAS); -+ shared_res[2].end = shared_res[2].start; -+ shared_res[2].end += RSET_ENETDMAS_SIZE(16) - 1; - - ret = platform_device_register(&bcm63xx_enet_shared_device); - if (ret) ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h -@@ -174,7 +174,9 @@ enum bcm63xx_regs_set { - #define BCM_6358_RSET_SPI_SIZE 1804 - #define BCM_6368_RSET_SPI_SIZE 1804 - #define RSET_ENET_SIZE 2048 --#define RSET_ENETDMA_SIZE 2048 -+#define RSET_ENETDMA_SIZE 256 -+#define RSET_ENETDMAC_SIZE(chans) (16 * (chans)) -+#define RSET_ENETDMAS_SIZE(chans) (16 * (chans)) - #define RSET_ENETSW_SIZE 65536 - #define RSET_UART_SIZE 24 - #define RSET_HSSPI_SIZE 1536 ---- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c -+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c -@@ -41,8 +41,8 @@ static int copybreak __read_mostly = 128 - module_param(copybreak, int, 0); - MODULE_PARM_DESC(copybreak, "Receive copy threshold"); - --/* io memory shared between all devices */ --static void __iomem *bcm_enet_shared_base; -+/* io registers memory shared between all devices */ -+static void __iomem *bcm_enet_shared_base[3]; - - /* - * io helpers to access mac registers -@@ -63,13 +63,35 @@ static inline void enet_writel(struct bc - */ - static inline u32 enet_dma_readl(struct bcm_enet_priv *priv, u32 off) - { -- return bcm_readl(bcm_enet_shared_base + off); -+ return bcm_readl(bcm_enet_shared_base[0] + off); - } - - static inline void enet_dma_writel(struct bcm_enet_priv *priv, - u32 val, u32 off) - { -- bcm_writel(val, bcm_enet_shared_base + off); -+ bcm_writel(val, bcm_enet_shared_base[0] + off); -+} -+ -+static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off) -+{ -+ return bcm_readl(bcm_enet_shared_base[1] + off); -+} -+ -+static inline void enet_dmac_writel(struct bcm_enet_priv *priv, -+ u32 val, u32 off) -+{ -+ bcm_writel(val, bcm_enet_shared_base[1] + off); -+} -+ -+static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off) -+{ -+ return bcm_readl(bcm_enet_shared_base[2] + off); -+} -+ -+static inline void enet_dmas_writel(struct bcm_enet_priv *priv, -+ u32 val, u32 off) -+{ -+ bcm_writel(val, bcm_enet_shared_base[2] + off); - } - - /* -@@ -353,8 +375,8 @@ static int bcm_enet_receive_queue(struct - bcm_enet_refill_rx(dev); - - /* kick rx dma */ -- enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK, -- ENETDMA_CHANCFG_REG(priv->rx_chan)); -+ enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK, -+ ENETDMAC_CHANCFG_REG(priv->rx_chan)); - } - - return processed; -@@ -429,10 +451,10 @@ static int bcm_enet_poll(struct napi_str - dev = priv->net_dev; - - /* ack interrupts */ -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IR_REG(priv->rx_chan)); -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IR_REG(priv->tx_chan)); -+ 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)); - - /* reclaim sent skb */ - tx_work_done = bcm_enet_tx_reclaim(dev, 0); -@@ -451,10 +473,10 @@ static int bcm_enet_poll(struct napi_str - napi_complete(napi); - - /* restore rx/tx interrupt */ -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IRMASK_REG(priv->rx_chan)); -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IRMASK_REG(priv->tx_chan)); -+ 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)); - - return rx_work_done; - } -@@ -497,8 +519,8 @@ static irqreturn_t bcm_enet_isr_dma(int - priv = netdev_priv(dev); - - /* mask rx/tx interrupts */ -- enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan)); - - napi_schedule(&priv->napi); - -@@ -557,8 +579,8 @@ static int bcm_enet_start_xmit(struct sk - wmb(); - - /* kick tx dma */ -- enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK, -- ENETDMA_CHANCFG_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK, -+ ENETDMAC_CHANCFG_REG(priv->tx_chan)); - - /* stop queue if no more desc available */ - if (!priv->tx_desc_count) -@@ -801,8 +823,8 @@ static int bcm_enet_open(struct net_devi - - /* mask all interrupts and request them */ - enet_writel(priv, 0, ENET_IRMASK_REG); -- enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan)); - - ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev); - if (ret) -@@ -891,28 +913,28 @@ static int bcm_enet_open(struct net_devi - } - - /* write rx & tx ring addresses */ -- enet_dma_writel(priv, priv->rx_desc_dma, -- ENETDMA_RSTART_REG(priv->rx_chan)); -- enet_dma_writel(priv, priv->tx_desc_dma, -- ENETDMA_RSTART_REG(priv->tx_chan)); -+ 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)); - - /* clear remaining state ram for rx & tx channel */ -- enet_dma_writel(priv, 0, ENETDMA_SRAM2_REG(priv->rx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_SRAM2_REG(priv->tx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_SRAM3_REG(priv->rx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_SRAM3_REG(priv->tx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_SRAM4_REG(priv->rx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_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 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_dma_writel(priv, BCMENET_DMA_MAXBURST, -- ENETDMA_MAXBURST_REG(priv->rx_chan)); -- enet_dma_writel(priv, BCMENET_DMA_MAXBURST, -- ENETDMA_MAXBURST_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, BCMENET_DMA_MAXBURST, -+ ENETDMAC_MAXBURST_REG(priv->rx_chan)); -+ enet_dmac_writel(priv, BCMENET_DMA_MAXBURST, -+ ENETDMAC_MAXBURST_REG(priv->tx_chan)); - - /* set correct transmit fifo watermark */ - enet_writel(priv, BCMENET_TX_FIFO_TRESH, ENET_TXWMARK_REG); -@@ -930,26 +952,26 @@ 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_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK, -- ENETDMA_CHANCFG_REG(priv->rx_chan)); -+ enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK, -+ ENETDMAC_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_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IR_REG(priv->rx_chan)); -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IR_REG(priv->tx_chan)); -+ 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)); - - /* make sure we enable napi before rx interrupt */ - napi_enable(&priv->napi); - -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IRMASK_REG(priv->rx_chan)); -- enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, -- ENETDMA_IRMASK_REG(priv->tx_chan)); -+ 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 (priv->has_phy) - phy_start(priv->phydev); -@@ -1026,14 +1048,14 @@ static void bcm_enet_disable_dma(struct - { - int limit; - -- enet_dma_writel(priv, 0, ENETDMA_CHANCFG_REG(chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG_REG(chan)); - - limit = 1000; - do { - u32 val; - -- val = enet_dma_readl(priv, ENETDMA_CHANCFG_REG(chan)); -- if (!(val & ENETDMA_CHANCFG_EN_MASK)) -+ val = enet_dmac_readl(priv, ENETDMAC_CHANCFG_REG(chan)); -+ if (!(val & ENETDMAC_CHANCFG_EN_MASK)) - break; - udelay(1); - } while (limit--); -@@ -1059,8 +1081,8 @@ static int bcm_enet_stop(struct net_devi - - /* mask all interrupts */ - enet_writel(priv, 0, ENET_IRMASK_REG); -- enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan)); -- enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan)); -+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan)); - - /* make sure no mib update is scheduled */ - cancel_work_sync(&priv->mib_update_task); -@@ -1598,7 +1620,7 @@ static int bcm_enet_probe(struct platfor - - /* stop if shared driver failed, assume driver->probe will be - * called in the same order we register devices (correct ?) */ -- if (!bcm_enet_shared_base) -+ if (!bcm_enet_shared_base[0]) - return -ENODEV; - - res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); -@@ -1904,30 +1926,61 @@ struct platform_driver bcm63xx_enet_driv - static int bcm_enet_shared_probe(struct platform_device *pdev) - { - struct resource *res; -+ int ret, i, requested[3]; - -- res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- if (!res) -- return -ENODEV; -+ memset(bcm_enet_shared_base, 0, sizeof (bcm_enet_shared_base)); -+ memset(requested, 0, sizeof (requested)); - -- if (!request_mem_region(res->start, resource_size(res), -- "bcm63xx_enet_dma")) -- return -EBUSY; -+ for (i = 0; i < 3; i++) { -+ void __iomem *p; - -- bcm_enet_shared_base = ioremap(res->start, resource_size(res)); -- if (!bcm_enet_shared_base) { -- release_mem_region(res->start, resource_size(res)); -- return -ENOMEM; -+ res = platform_get_resource(pdev, IORESOURCE_MEM, i); -+ if (!res) { -+ ret = -EINVAL; -+ goto fail; -+ } -+ -+ if (!request_mem_region(res->start, resource_size(res), -+ "bcm63xx_enet_dma")) { -+ ret = -EBUSY; -+ goto fail; -+ } -+ requested[i] = 0; -+ -+ p = ioremap(res->start, resource_size(res)); -+ if (!p) { -+ ret = -ENOMEM; -+ goto fail; -+ } -+ -+ bcm_enet_shared_base[i] = p; - } -+ - return 0; -+ -+fail: -+ for (i = 0; i < 3; i++) { -+ res = platform_get_resource(pdev, IORESOURCE_MEM, i); -+ if (!res) -+ continue; -+ if (bcm_enet_shared_base[i]) -+ iounmap(bcm_enet_shared_base[i]); -+ if (requested[i]) -+ release_mem_region(res->start, resource_size(res)); -+ } -+ return ret; - } - - static int bcm_enet_shared_remove(struct platform_device *pdev) - { - struct resource *res; -+ int i; - -- iounmap(bcm_enet_shared_base); -- res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- release_mem_region(res->start, resource_size(res)); -+ for (i = 0; i < 3; i++) { -+ iounmap(bcm_enet_shared_base[i]); -+ res = platform_get_resource(pdev, IORESOURCE_MEM, i); -+ release_mem_region(res->start, resource_size(res)); -+ } - return 0; - } - |