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796 lines
27 KiB
Diff
796 lines
27 KiB
Diff
[PATCH] MIPS: BCM63XX: enable ethernet for BCM6345
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BCM6345 has a slightly older DMA engine which is not supported by default by
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the bcm63xx_enet driver. This patch adds the missing Ethernet DMA definitions
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as well as patches all the places in the ethernet driver were the DMA
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reading/writing is different.
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Signed-off-by: Florian Fainelli <florian@openwrt.org>
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---
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--- a/arch/mips/bcm63xx/dev-enet.c
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+++ b/arch/mips/bcm63xx/dev-enet.c
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@@ -9,10 +9,44 @@
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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+#include <linux/export.h>
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#include <bcm63xx_dev_enet.h>
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#include <bcm63xx_io.h>
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#include <bcm63xx_regs.h>
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+#ifdef BCMCPU_RUNTIME_DETECT
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+static const unsigned long bcm6xxx_regs_enetdmac[] = {
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+ [ENETDMAC_CHANCFG] = ENETDMAC_CHANCFG_REG,
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+ [ENETDMAC_IR] = ENETDMAC_IR_REG,
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+ [ENETDMAC_IRMASK] = ENETDMAC_IRMASK_REG,
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+ [ENETDMAC_MAXBURST] = ENETDMAC_MAXBURST_REG,
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+};
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+
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+static const unsigned long bcm6345_regs_enetdmac[] = {
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+ [ENETDMAC_CHANCFG] = ENETDMA_6345_CHANCFG_REG,
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+ [ENETDMAC_IR] = ENETDMA_6345_IR_REG,
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+ [ENETDMAC_IRMASK] = ENETDMA_6345_IRMASK_REG,
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+ [ENETDMAC_MAXBURST] = ENETDMA_6345_MAXBURST_REG,
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+ [ENETDMAC_BUFALLOC] = ENETDMA_6345_BUFALLOC_REG,
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+ [ENETDMAC_RSTART] = ENETDMA_6345_RSTART_REG,
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+ [ENETDMAC_FC] = ENETDMA_6345_FC_REG,
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+ [ENETDMAC_LEN] = ENETDMA_6345_LEN_REG,
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+};
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+
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+const unsigned long *bcm63xx_regs_enetdmac;
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+EXPORT_SYMBOL(bcm63xx_regs_enetdmac);
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+
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+static __init void bcm63xx_enetdmac_regs_init(void)
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+{
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+ if (BCMCPU_IS_6345())
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+ bcm63xx_regs_enetdmac = bcm6345_regs_enetdmac;
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+ else
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+ bcm63xx_regs_enetdmac = bcm6xxx_regs_enetdmac;
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+}
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+#else
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+static __init void bcm63xx_enetdmac_regs_init(void) { }
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+#endif
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+
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static struct resource shared_res[] = {
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{
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.start = -1, /* filled at runtime */
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@@ -137,12 +171,19 @@ static int __init register_shared(void)
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if (shared_device_registered)
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return 0;
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+ bcm63xx_enetdmac_regs_init();
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+
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shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
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shared_res[0].end = shared_res[0].start;
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- shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
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+ if (BCMCPU_IS_6345())
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+ shared_res[0].end += (RSET_6345_ENETDMA_SIZE) - 1;
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+ else
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+ shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
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if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368())
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chan_count = 32;
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+ else if (BCMCPU_IS_6345())
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+ chan_count = 8;
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else
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chan_count = 16;
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@@ -172,7 +213,7 @@ int __init bcm63xx_enet_register(int uni
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if (unit > 1)
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return -ENODEV;
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- if (unit == 1 && BCMCPU_IS_6338())
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+ if (unit == 1 && (BCMCPU_IS_6338() || BCMCPU_IS_6345()))
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return -ENODEV;
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ret = register_shared();
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@@ -213,6 +254,20 @@ int __init bcm63xx_enet_register(int uni
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dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
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}
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+ dpd->dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
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+ dpd->dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
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+ if (BCMCPU_IS_6345()) {
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+ dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_CHAINING_MASK;
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+ dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_WRAP_EN_MASK;
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+ dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_FLOWC_EN_MASK;
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+ dpd->dma_chan_int_mask |= ENETDMA_IR_BUFDONE_MASK;
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+ dpd->dma_chan_int_mask |= ENETDMA_IR_NOTOWNER_MASK;
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+ dpd->dma_chan_width = ENETDMA_6345_CHAN_WIDTH;
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+ dpd->dma_no_sram = 1;
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+ dpd->dma_desc_shift = ENETDMA_6345_DESC_SHIFT;
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+ } else
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+ dpd->dma_chan_width = ENETDMA_CHAN_WIDTH;
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+
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ret = platform_device_register(pdev);
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if (ret)
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return ret;
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@@ -248,6 +303,10 @@ bcm63xx_enetsw_register(const struct bcm
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else if (BCMCPU_IS_6368())
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enetsw_pd.num_ports = ENETSW_PORTS_6368;
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+ enetsw_pd.dma_chan_width = ENETDMA_CHAN_WIDTH;
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+ enetsw_pd.dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
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+ enetsw_pd.dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
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+
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ret = platform_device_register(&bcm63xx_enetsw_device);
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if (ret)
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return ret;
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--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
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+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
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@@ -715,6 +715,8 @@
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/*************************************************************************
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* _REG relative to RSET_ENETDMA
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*************************************************************************/
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+#define ENETDMA_CHAN_WIDTH 0x10
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+#define ENETDMA_6345_CHAN_WIDTH 0x40
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/* Controller Configuration Register */
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#define ENETDMA_CFG_REG (0x0)
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@@ -764,29 +766,54 @@
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/* State Ram Word 4 */
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#define ENETDMA_SRAM4_REG(x) (0x20c + (x) * 0x10)
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+/* Broadcom 6345 ENET DMA definitions */
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+#define ENETDMA_6345_CHANCFG_REG (0x00)
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+
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+#define ENETDMA_6345_MAXBURST_REG (0x04)
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+
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+#define ENETDMA_6345_RSTART_REG (0x08)
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+
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+#define ENETDMA_6345_LEN_REG (0x0C)
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+
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+#define ENETDMA_6345_IR_REG (0x14)
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+
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+#define ENETDMA_6345_IRMASK_REG (0x18)
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+
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+#define ENETDMA_6345_FC_REG (0x1C)
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+
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+#define ENETDMA_6345_BUFALLOC_REG (0x20)
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+
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+/* Shift down for EOP, SOP and WRAP bits */
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+#define ENETDMA_6345_DESC_SHIFT (3)
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/*************************************************************************
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* _REG relative to RSET_ENETDMAC
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*************************************************************************/
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/* Channel Configuration register */
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-#define ENETDMAC_CHANCFG_REG(x) ((x) * 0x10)
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+#define ENETDMAC_CHANCFG_REG (0x0)
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#define ENETDMAC_CHANCFG_EN_SHIFT 0
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#define ENETDMAC_CHANCFG_EN_MASK (1 << ENETDMA_CHANCFG_EN_SHIFT)
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#define ENETDMAC_CHANCFG_PKTHALT_SHIFT 1
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#define ENETDMAC_CHANCFG_PKTHALT_MASK (1 << ENETDMA_CHANCFG_PKTHALT_SHIFT)
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+#define ENETDMAC_CHANCFG_CHAINING_SHIFT 2
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+#define ENETDMAC_CHANCFG_CHAINING_MASK (1 << ENETDMAC_CHANCFG_CHAINING_SHIFT)
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+#define ENETDMAC_CHANCFG_WRAP_EN_SHIFT 3
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+#define ENETDMAC_CHANCFG_WRAP_EN_MASK (1 << ENETDMAC_CHANCFG_WRAP_EN_SHIFT)
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+#define ENETDMAC_CHANCFG_FLOWC_EN_SHIFT 4
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+#define ENETDMAC_CHANCFG_FLOWC_EN_MASK (1 << ENETDMAC_CHANCFG_FLOWC_EN_SHIFT)
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/* Interrupt Control/Status register */
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-#define ENETDMAC_IR_REG(x) (0x4 + (x) * 0x10)
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+#define ENETDMAC_IR_REG (0x4)
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#define ENETDMAC_IR_BUFDONE_MASK (1 << 0)
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#define ENETDMAC_IR_PKTDONE_MASK (1 << 1)
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#define ENETDMAC_IR_NOTOWNER_MASK (1 << 2)
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/* Interrupt Mask register */
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-#define ENETDMAC_IRMASK_REG(x) (0x8 + (x) * 0x10)
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+#define ENETDMAC_IRMASK_REG (0x8)
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/* Maximum Burst Length */
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-#define ENETDMAC_MAXBURST_REG(x) (0xc + (x) * 0x10)
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+#define ENETDMAC_MAXBURST_REG (0xc)
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/*************************************************************************
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@@ -794,16 +821,16 @@
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*************************************************************************/
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/* Ring Start Address register */
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-#define ENETDMAS_RSTART_REG(x) ((x) * 0x10)
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+#define ENETDMAS_RSTART_REG (0x0)
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/* State Ram Word 2 */
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-#define ENETDMAS_SRAM2_REG(x) (0x4 + (x) * 0x10)
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+#define ENETDMAS_SRAM2_REG (0x4)
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/* State Ram Word 3 */
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-#define ENETDMAS_SRAM3_REG(x) (0x8 + (x) * 0x10)
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+#define ENETDMAS_SRAM3_REG (0x8)
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/* State Ram Word 4 */
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-#define ENETDMAS_SRAM4_REG(x) (0xc + (x) * 0x10)
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+#define ENETDMAS_SRAM4_REG (0xc)
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/*************************************************************************
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--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
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+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
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@@ -115,26 +115,28 @@ static inline void enet_dma_writel(struc
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bcm_writel(val, bcm_enet_shared_base[0] + off);
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}
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-static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off)
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+static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off, int chan)
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{
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- return bcm_readl(bcm_enet_shared_base[1] + off);
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+ return bcm_readl(bcm_enet_shared_base[1] +
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+ (bcm63xx_enetdmacreg(off) + (chan * priv->dma_chan_width)));
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}
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static inline void enet_dmac_writel(struct bcm_enet_priv *priv,
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- u32 val, u32 off)
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+ u32 val, u32 off, int chan)
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{
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- bcm_writel(val, bcm_enet_shared_base[1] + off);
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+ bcm_writel(val, bcm_enet_shared_base[1] +
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+ (bcm63xx_enetdmacreg(off) + (chan * priv->dma_chan_width)));
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}
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-static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off)
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+static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off, int chan)
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{
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- return bcm_readl(bcm_enet_shared_base[2] + off);
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+ return bcm_readl(bcm_enet_shared_base[2] + (off + (chan * priv->dma_chan_width)));
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}
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static inline void enet_dmas_writel(struct bcm_enet_priv *priv,
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- u32 val, u32 off)
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+ u32 val, u32 off, int chan)
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{
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- bcm_writel(val, bcm_enet_shared_base[2] + off);
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+ bcm_writel(val, bcm_enet_shared_base[2] + (off + (chan * priv->dma_chan_width)));
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}
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/*
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@@ -270,7 +272,7 @@ static int bcm_enet_refill_rx(struct net
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len_stat = priv->rx_skb_size << DMADESC_LENGTH_SHIFT;
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len_stat |= DMADESC_OWNER_MASK;
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if (priv->rx_dirty_desc == priv->rx_ring_size - 1) {
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- len_stat |= DMADESC_WRAP_MASK;
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+ len_stat |= (DMADESC_WRAP_MASK >> priv->dma_desc_shift);
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priv->rx_dirty_desc = 0;
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} else {
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priv->rx_dirty_desc++;
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@@ -281,7 +283,10 @@ static int bcm_enet_refill_rx(struct net
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priv->rx_desc_count++;
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/* tell dma engine we allocated one buffer */
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- enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan));
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+ if (!priv->dma_no_sram)
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+ enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan));
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+ else
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+ enet_dmac_writel(priv, 1, ENETDMAC_BUFALLOC, priv->rx_chan);
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}
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/* If rx ring is still empty, set a timer to try allocating
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@@ -357,7 +362,8 @@ static int bcm_enet_receive_queue(struct
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/* if the packet does not have start of packet _and_
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* end of packet flag set, then just recycle it */
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- if ((len_stat & DMADESC_ESOP_MASK) != DMADESC_ESOP_MASK) {
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+ if ((len_stat & (DMADESC_ESOP_MASK >> priv->dma_desc_shift)) !=
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+ (DMADESC_ESOP_MASK >> priv->dma_desc_shift)) {
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dev->stats.rx_dropped++;
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continue;
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}
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@@ -418,8 +424,8 @@ static int bcm_enet_receive_queue(struct
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bcm_enet_refill_rx(dev);
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/* kick rx dma */
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- enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
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- ENETDMAC_CHANCFG_REG(priv->rx_chan));
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+ enet_dmac_writel(priv, priv->dma_chan_en_mask,
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+ ENETDMAC_CHANCFG, priv->rx_chan);
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}
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return processed;
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@@ -494,10 +500,10 @@ static int bcm_enet_poll(struct napi_str
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dev = priv->net_dev;
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/* ack interrupts */
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- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
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- ENETDMAC_IR_REG(priv->rx_chan));
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- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
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- ENETDMAC_IR_REG(priv->tx_chan));
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+ enet_dmac_writel(priv, priv->dma_chan_int_mask,
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+ ENETDMAC_IR, priv->rx_chan);
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+ enet_dmac_writel(priv, priv->dma_chan_int_mask,
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+ ENETDMAC_IR, priv->tx_chan);
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/* reclaim sent skb */
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tx_work_done = bcm_enet_tx_reclaim(dev, 0);
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@@ -516,10 +522,10 @@ static int bcm_enet_poll(struct napi_str
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napi_complete(napi);
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/* restore rx/tx interrupt */
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- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
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- ENETDMAC_IRMASK_REG(priv->rx_chan));
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- enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
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- ENETDMAC_IRMASK_REG(priv->tx_chan));
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+ enet_dmac_writel(priv, priv->dma_chan_int_mask,
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+ ENETDMAC_IRMASK, priv->rx_chan);
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+ enet_dmac_writel(priv, priv->dma_chan_int_mask,
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+ ENETDMAC_IRMASK, priv->tx_chan);
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return rx_work_done;
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}
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@@ -562,8 +568,8 @@ static irqreturn_t bcm_enet_isr_dma(int
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priv = netdev_priv(dev);
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/* mask rx/tx interrupts */
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- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
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- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
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+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
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+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
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napi_schedule(&priv->napi);
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@@ -624,14 +630,14 @@ static int bcm_enet_start_xmit(struct sk
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DMA_TO_DEVICE);
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len_stat = (skb->len << DMADESC_LENGTH_SHIFT) & DMADESC_LENGTH_MASK;
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- len_stat |= DMADESC_ESOP_MASK |
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+ len_stat |= (DMADESC_ESOP_MASK >> priv->dma_desc_shift) |
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DMADESC_APPEND_CRC |
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DMADESC_OWNER_MASK;
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priv->tx_curr_desc++;
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if (priv->tx_curr_desc == priv->tx_ring_size) {
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priv->tx_curr_desc = 0;
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- len_stat |= DMADESC_WRAP_MASK;
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+ len_stat |= (DMADESC_WRAP_MASK >> priv->dma_desc_shift);
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}
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priv->tx_desc_count--;
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@@ -642,8 +648,8 @@ static int bcm_enet_start_xmit(struct sk
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wmb();
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/* kick tx dma */
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- enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
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- ENETDMAC_CHANCFG_REG(priv->tx_chan));
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+ enet_dmac_writel(priv, priv->dma_chan_en_mask,
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+ ENETDMAC_CHANCFG, priv->tx_chan);
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/* stop queue if no more desc available */
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if (!priv->tx_desc_count)
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@@ -771,6 +777,9 @@ static void bcm_enet_set_flow(struct bcm
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val &= ~ENET_RXCFG_ENFLOW_MASK;
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enet_writel(priv, val, ENET_RXCFG_REG);
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+ if (priv->dma_no_sram)
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+ return;
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+
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/* tx flow control (pause frame generation) */
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val = enet_dma_readl(priv, ENETDMA_CFG_REG);
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if (tx_en)
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@@ -886,8 +895,8 @@ static int bcm_enet_open(struct net_devi
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/* mask all interrupts and request them */
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enet_writel(priv, 0, ENET_IRMASK_REG);
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- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
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- enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
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+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
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+ enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
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ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev);
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if (ret)
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@@ -966,8 +975,12 @@ static int bcm_enet_open(struct net_devi
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priv->rx_curr_desc = 0;
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/* initialize flow control buffer allocation */
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- enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
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- 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);
|
|
@@ -1757,6 +1788,11 @@ static int __devinit bcm_enet_probe(stru
|
|
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) {
|
|
@@ -2144,8 +2180,8 @@ 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);
|
|
@@ -2269,23 +2305,23 @@ 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;
|
|
@@ -2298,21 +2334,21 @@ 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);
|
|
@@ -2419,8 +2455,8 @@ 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);
|
|
@@ -2757,6 +2793,9 @@ static int __devinit bcm_enetsw_probe(st
|
|
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
|
|
@@ -367,6 +367,21 @@ 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)
|
|
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
|
|
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
|
|
@@ -173,6 +173,7 @@ 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
|
|
@@ -299,7 +300,7 @@ 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;
|
|
};
|
|
|
|
/*
|
|
@@ -64,6 +81,15 @@ 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,
|
|
@@ -72,4 +98,66 @@ int __init bcm63xx_enet_register(int uni
|
|
int __init
|
|
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_BCM6XX_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_ */
|