diff options
| -rw-r--r-- | drivers/net/can/c_can/Kconfig | 13 | ||||
| -rw-r--r-- | drivers/net/can/c_can/c_can.h | 45 | ||||
| -rw-r--r-- | drivers/net/can/c_can/c_can_platform.c | 55 |
3 files changed, 94 insertions, 19 deletions
diff --git a/drivers/net/can/c_can/Kconfig b/drivers/net/can/c_can/Kconfig index ffb9773d102..25d371cf98d 100644 --- a/drivers/net/can/c_can/Kconfig +++ b/drivers/net/can/c_can/Kconfig @@ -1,15 +1,16 @@ menuconfig CAN_C_CAN - tristate "Bosch C_CAN devices" + tristate "Bosch C_CAN/D_CAN devices" depends on CAN_DEV && HAS_IOMEM if CAN_C_CAN config CAN_C_CAN_PLATFORM - tristate "Generic Platform Bus based C_CAN driver" + tristate "Generic Platform Bus based C_CAN/D_CAN driver" ---help--- - This driver adds support for the C_CAN chips connected to - the "platform bus" (Linux abstraction for directly to the + This driver adds support for the C_CAN/D_CAN chips connected + to the "platform bus" (Linux abstraction for directly to the processor attached devices) which can be found on various - boards from ST Microelectronics (http://www.st.com) - like the SPEAr1310 and SPEAr320 evaluation boards. + boards from ST Microelectronics (http://www.st.com) like the + SPEAr1310 and SPEAr320 evaluation boards & TI (www.ti.com) + boards like am335x, dm814x, dm813x and dm811x. endif diff --git a/drivers/net/can/c_can/c_can.h b/drivers/net/can/c_can/c_can.h index d1e141e3b99..01a7049ab99 100644 --- a/drivers/net/can/c_can/c_can.h +++ b/drivers/net/can/c_can/c_can.h @@ -102,6 +102,51 @@ static const u16 reg_map_c_can[] = { [C_CAN_MSGVAL2_REG] = 0xB2, }; +static const u16 reg_map_d_can[] = { + [C_CAN_CTRL_REG] = 0x00, + [C_CAN_STS_REG] = 0x04, + [C_CAN_ERR_CNT_REG] = 0x08, + [C_CAN_BTR_REG] = 0x0C, + [C_CAN_BRPEXT_REG] = 0x0E, + [C_CAN_INT_REG] = 0x10, + [C_CAN_TEST_REG] = 0x14, + [C_CAN_TXRQST1_REG] = 0x88, + [C_CAN_TXRQST2_REG] = 0x8A, + [C_CAN_NEWDAT1_REG] = 0x9C, + [C_CAN_NEWDAT2_REG] = 0x9E, + [C_CAN_INTPND1_REG] = 0xB0, + [C_CAN_INTPND2_REG] = 0xB2, + [C_CAN_MSGVAL1_REG] = 0xC4, + [C_CAN_MSGVAL2_REG] = 0xC6, + [C_CAN_IF1_COMREQ_REG] = 0x100, + [C_CAN_IF1_COMMSK_REG] = 0x102, + [C_CAN_IF1_MASK1_REG] = 0x104, + [C_CAN_IF1_MASK2_REG] = 0x106, + [C_CAN_IF1_ARB1_REG] = 0x108, + [C_CAN_IF1_ARB2_REG] = 0x10A, + [C_CAN_IF1_MSGCTRL_REG] = 0x10C, + [C_CAN_IF1_DATA1_REG] = 0x110, + [C_CAN_IF1_DATA2_REG] = 0x112, + [C_CAN_IF1_DATA3_REG] = 0x114, + [C_CAN_IF1_DATA4_REG] = 0x116, + [C_CAN_IF2_COMREQ_REG] = 0x120, + [C_CAN_IF2_COMMSK_REG] = 0x122, + [C_CAN_IF2_MASK1_REG] = 0x124, + [C_CAN_IF2_MASK2_REG] = 0x126, + [C_CAN_IF2_ARB1_REG] = 0x128, + [C_CAN_IF2_ARB2_REG] = 0x12A, + [C_CAN_IF2_MSGCTRL_REG] = 0x12C, + [C_CAN_IF2_DATA1_REG] = 0x130, + [C_CAN_IF2_DATA2_REG] = 0x132, + [C_CAN_IF2_DATA3_REG] = 0x134, + [C_CAN_IF2_DATA4_REG] = 0x136, +}; + +enum c_can_dev_id { + C_CAN_DEVTYPE, + D_CAN_DEVTYPE, +}; + /* c_can private data structure */ struct c_can_priv { struct can_priv can; /* must be the first member */ diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c index a6e9b937683..f0921d16f0a 100644 --- a/drivers/net/can/c_can/c_can_platform.c +++ b/drivers/net/can/c_can/c_can_platform.c @@ -71,6 +71,7 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev) void __iomem *addr; struct net_device *dev; struct c_can_priv *priv; + const struct platform_device_id *id; struct resource *mem; int irq; #ifdef CONFIG_HAVE_CLK @@ -115,7 +116,32 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev) } priv = netdev_priv(dev); - priv->regs = reg_map_c_can; + id = platform_get_device_id(pdev); + switch (id->driver_data) { + case C_CAN_DEVTYPE: + priv->regs = reg_map_c_can; + switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) { + case IORESOURCE_MEM_32BIT: + priv->read_reg = c_can_plat_read_reg_aligned_to_32bit; + priv->write_reg = c_can_plat_write_reg_aligned_to_32bit; + break; + case IORESOURCE_MEM_16BIT: + default: + priv->read_reg = c_can_plat_read_reg_aligned_to_16bit; + priv->write_reg = c_can_plat_write_reg_aligned_to_16bit; + break; + } + break; + case D_CAN_DEVTYPE: + priv->regs = reg_map_d_can; + priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; + priv->read_reg = c_can_plat_read_reg_aligned_to_16bit; + priv->write_reg = c_can_plat_write_reg_aligned_to_16bit; + break; + default: + ret = -EINVAL; + goto exit_free_device; + } dev->irq = irq; priv->base = addr; @@ -124,18 +150,6 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev) priv->priv = clk; #endif - switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) { - case IORESOURCE_MEM_32BIT: - priv->read_reg = c_can_plat_read_reg_aligned_to_32bit; - priv->write_reg = c_can_plat_write_reg_aligned_to_32bit; - break; - case IORESOURCE_MEM_16BIT: - default: - priv->read_reg = c_can_plat_read_reg_aligned_to_16bit; - priv->write_reg = c_can_plat_write_reg_aligned_to_16bit; - break; - } - platform_set_drvdata(pdev, dev); SET_NETDEV_DEV(dev, &pdev->dev); @@ -189,6 +203,20 @@ static int __devexit c_can_plat_remove(struct platform_device *pdev) return 0; } +static const struct platform_device_id c_can_id_table[] = { + { + .name = KBUILD_MODNAME, + .driver_data = C_CAN_DEVTYPE, + }, { + .name = "c_can", + .driver_data = C_CAN_DEVTYPE, + }, { + .name = "d_can", + .driver_data = D_CAN_DEVTYPE, + }, { + } +}; + static struct platform_driver c_can_plat_driver = { .driver = { .name = KBUILD_MODNAME, @@ -196,6 +224,7 @@ static struct platform_driver c_can_plat_driver = { }, .probe = c_can_plat_probe, .remove = __devexit_p(c_can_plat_remove), + .id_table = c_can_id_table, }; module_platform_driver(c_can_plat_driver); |