diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-pcidrv.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 85056c22d21e..3356f7ab9f79 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -56,6 +56,7 @@ enum dw_pci_ctl_id_t { medfield_5, baytrail, + haswell, }; struct dw_scl_sda_cfg { @@ -95,6 +96,15 @@ static struct dw_scl_sda_cfg byt_config = { .sda_hold = 0x6, }; +/* Haswell HCNT/LCNT/SDA hold time */ +static struct dw_scl_sda_cfg hsw_config = { + .ss_hcnt = 0x01b0, + .fs_hcnt = 0x48, + .ss_lcnt = 0x01fb, + .fs_lcnt = 0xa0, + .sda_hold = 0x9, +}; + static struct dw_pci_controller dw_pci_controllers[] = { [moorestown_0] = { .bus_num = 0, @@ -168,6 +178,15 @@ static struct dw_pci_controller dw_pci_controllers[] = { .functionality = I2C_FUNC_10BIT_ADDR, .scl_sda_cfg = &byt_config, }, + [haswell] = { + .bus_num = -1, + .bus_cfg = INTEL_MID_STD_CFG | DW_IC_CON_SPEED_FAST, + .tx_fifo_depth = 32, + .rx_fifo_depth = 32, + .clk_khz = 100000, + .functionality = I2C_FUNC_10BIT_ADDR, + .scl_sda_cfg = &hsw_config, + }, }; static struct i2c_algorithm i2c_dw_algo = { .master_xfer = i2c_dw_xfer, @@ -328,6 +347,9 @@ static const struct pci_device_id i2_designware_pci_ids[] = { { PCI_VDEVICE(INTEL, 0x0F45), baytrail }, { PCI_VDEVICE(INTEL, 0x0F46), baytrail }, { PCI_VDEVICE(INTEL, 0x0F47), baytrail }, + /* Haswell */ + { PCI_VDEVICE(INTEL, 0x9c61), haswell }, + { PCI_VDEVICE(INTEL, 0x9c62), haswell }, { 0,} }; MODULE_DEVICE_TABLE(pci, i2_designware_pci_ids); |