diff options
Diffstat (limited to 'drivers/net/can/kvaser_pciefd.c')
| -rw-r--r-- | drivers/net/can/kvaser_pciefd.c | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index a57005faa..7b5028b67 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -27,7 +27,7 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices"); #define KVASER_PCIEFD_BEC_POLL_FREQ (jiffies + msecs_to_jiffies(200)) #define KVASER_PCIEFD_MAX_ERR_REP 256U #define KVASER_PCIEFD_CAN_TX_MAX_COUNT 17U -#define KVASER_PCIEFD_MAX_CAN_CHANNELS 4UL +#define KVASER_PCIEFD_MAX_CAN_CHANNELS 8UL #define KVASER_PCIEFD_DMA_COUNT 2U #define KVASER_PCIEFD_DMA_SIZE (4U * 1024U) @@ -47,12 +47,19 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices"); #define KVASER_PCIEFD_MINIPCIE_2CAN_V3_DEVICE_ID 0x0015 #define KVASER_PCIEFD_MINIPCIE_1CAN_V3_DEVICE_ID 0x0016 +/* Xilinx based devices */ +#define KVASER_PCIEFD_M2_4CAN_DEVICE_ID 0x0017 +#define KVASER_PCIEFD_8CAN_DEVICE_ID 0x0019 + /* Altera SerDes Enable 64-bit DMA address translation */ #define KVASER_PCIEFD_ALTERA_DMA_64BIT BIT(0) /* SmartFusion2 SerDes LSB address translation mask */ #define KVASER_PCIEFD_SF2_DMA_LSB_MASK GENMASK(31, 12) +/* Xilinx SerDes LSB address translation mask */ +#define KVASER_PCIEFD_XILINX_DMA_LSB_MASK GENMASK(31, 12) + /* Kvaser KCAN CAN controller registers */ #define KVASER_PCIEFD_KCAN_FIFO_REG 0x100 #define KVASER_PCIEFD_KCAN_FIFO_LAST_REG 0x180 @@ -281,6 +288,8 @@ static void kvaser_pciefd_write_dma_map_altera(struct kvaser_pciefd *pcie, dma_addr_t addr, int index); static void kvaser_pciefd_write_dma_map_sf2(struct kvaser_pciefd *pcie, dma_addr_t addr, int index); +static void kvaser_pciefd_write_dma_map_xilinx(struct kvaser_pciefd *pcie, + dma_addr_t addr, int index); struct kvaser_pciefd_address_offset { u32 serdes; @@ -335,6 +344,18 @@ static const struct kvaser_pciefd_address_offset kvaser_pciefd_sf2_address_offse .kcan_ch1 = 0x142000, }; +static const struct kvaser_pciefd_address_offset kvaser_pciefd_xilinx_address_offset = { + .serdes = 0x00208, + .pci_ien = 0x102004, + .pci_irq = 0x102008, + .sysid = 0x100000, + .loopback = 0x103000, + .kcan_srb_fifo = 0x120000, + .kcan_srb = 0x121000, + .kcan_ch0 = 0x140000, + .kcan_ch1 = 0x142000, +}; + static const struct kvaser_pciefd_irq_mask kvaser_pciefd_altera_irq_mask = { .kcan_rx0 = BIT(4), .kcan_tx = { BIT(0), BIT(1), BIT(2), BIT(3) }, @@ -347,6 +368,12 @@ static const struct kvaser_pciefd_irq_mask kvaser_pciefd_sf2_irq_mask = { .all = GENMASK(19, 16) | BIT(4), }; +static const struct kvaser_pciefd_irq_mask kvaser_pciefd_xilinx_irq_mask = { + .kcan_rx0 = BIT(4), + .kcan_tx = { BIT(16), BIT(17), BIT(18), BIT(19), BIT(20), BIT(21), BIT(22), BIT(23) }, + .all = GENMASK(23, 16) | BIT(4), +}; + static const struct kvaser_pciefd_dev_ops kvaser_pciefd_altera_dev_ops = { .kvaser_pciefd_write_dma_map = kvaser_pciefd_write_dma_map_altera, }; @@ -355,6 +382,10 @@ static const struct kvaser_pciefd_dev_ops kvaser_pciefd_sf2_dev_ops = { .kvaser_pciefd_write_dma_map = kvaser_pciefd_write_dma_map_sf2, }; +static const struct kvaser_pciefd_dev_ops kvaser_pciefd_xilinx_dev_ops = { + .kvaser_pciefd_write_dma_map = kvaser_pciefd_write_dma_map_xilinx, +}; + static const struct kvaser_pciefd_driver_data kvaser_pciefd_altera_driver_data = { .address_offset = &kvaser_pciefd_altera_address_offset, .irq_mask = &kvaser_pciefd_altera_irq_mask, @@ -367,6 +398,12 @@ static const struct kvaser_pciefd_driver_data kvaser_pciefd_sf2_driver_data = { .ops = &kvaser_pciefd_sf2_dev_ops, }; +static const struct kvaser_pciefd_driver_data kvaser_pciefd_xilinx_driver_data = { + .address_offset = &kvaser_pciefd_xilinx_address_offset, + .irq_mask = &kvaser_pciefd_xilinx_irq_mask, + .ops = &kvaser_pciefd_xilinx_dev_ops, +}; + struct kvaser_pciefd_can { struct can_priv can; struct kvaser_pciefd *kv_pcie; @@ -457,6 +494,14 @@ static struct pci_device_id kvaser_pciefd_id_table[] = { .driver_data = (kernel_ulong_t)&kvaser_pciefd_sf2_driver_data, }, { + PCI_DEVICE(KVASER_PCIEFD_VENDOR, KVASER_PCIEFD_M2_4CAN_DEVICE_ID), + .driver_data = (kernel_ulong_t)&kvaser_pciefd_xilinx_driver_data, + }, + { + PCI_DEVICE(KVASER_PCIEFD_VENDOR, KVASER_PCIEFD_8CAN_DEVICE_ID), + .driver_data = (kernel_ulong_t)&kvaser_pciefd_xilinx_driver_data, + }, + { 0, }, }; @@ -1035,6 +1080,21 @@ static void kvaser_pciefd_write_dma_map_sf2(struct kvaser_pciefd *pcie, iowrite32(msb, serdes_base + 0x4); } +static void kvaser_pciefd_write_dma_map_xilinx(struct kvaser_pciefd *pcie, + dma_addr_t addr, int index) +{ + void __iomem *serdes_base; + u32 lsb = addr & KVASER_PCIEFD_XILINX_DMA_LSB_MASK; + u32 msb = 0x0; + +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + msb = addr >> 32; +#endif + serdes_base = KVASER_PCIEFD_SERDES_ADDR(pcie) + 0x8 * index; + iowrite32(msb, serdes_base); + iowrite32(lsb, serdes_base + 0x4); +} + static int kvaser_pciefd_setup_dma(struct kvaser_pciefd *pcie) { int i; |