On Wed, Apr 15, 2015 at 09:56:16AM +0200, Soeren Grunewald wrote:
> The Exar XR17V358 chip usually provides only 8 ports. But two chips can be
> combined to act as a single 16 port chip. Therefor one chip is configured
> as master the second as slave by connecting the mode pin to VCC (master)
> or GND (slave).
>
> Then the master chip is reporting a different device-id depending on
> whether a slave is detected or not. The UARTs 8-15 are addressed from
> 0x2000-0x3fff. So the offset of 0x400 from UART to UART can be used to
> address all 16 ports as before.
>
> Signed-off-by: Soeren Grunewald <soeren.grunewald@xxxxxxx>
> ---
> drivers/tty/serial/8250/8250_pci.c | 23 +++++++++++++++++++++--
> include/linux/pci_ids.h | 1 +
> 2 files changed, 22 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
> index 08da4d3..15ce922 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -2520,6 +2520,13 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
> .subdevice = PCI_ANY_ID,
> .setup = pci_xr17v35x_setup,
> },
> + {
> + .vendor = PCI_VENDOR_ID_EXAR,
> + .device = PCI_DEVICE_ID_EXAR_XR17V8358,
> + .subvendor = PCI_ANY_ID,
> + .subdevice = PCI_ANY_ID,
> + .setup = pci_xr17v35x_setup,
> + },
> /*
> * Xircom cards
> */
> @@ -2999,6 +3006,7 @@ enum pci_board_num_t {
> pbn_exar_XR17V352,
> pbn_exar_XR17V354,
> pbn_exar_XR17V358,
> + pbn_exar_XR17V8358,
> pbn_exar_ibm_saturn,
> pbn_pasemi_1682M,
> pbn_ni8430_2,
> @@ -3685,6 +3693,14 @@ static struct pciserial_board pci_boards[] = {
> .reg_shift = 0,
> .first_offset = 0,
> },
> + [pbn_exar_XR17V8358] = {
> + .flags = FL_BASE0,
> + .num_ports = 16,
> + .base_baud = 7812500,
> + .uart_offset = 0x400,
> + .reg_shift = 0,
> + .first_offset = 0,
> + },
> [pbn_exar_ibm_saturn] = {
> .flags = FL_BASE0,
> .num_ports = 1,
> @@ -5080,7 +5096,7 @@ static struct pci_device_id serial_pci_tbl[] = {
> 0,
> 0, pbn_exar_XR17C158 },
> /*
> - * Exar Corp. XR17V35[248] Dual/Quad/Octal PCIe UARTs
> + * Exar Corp. XR17V[48]35[248] Dual/Quad/Octal/Hexa PCIe UARTs
> */
> { PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V352,
> PCI_ANY_ID, PCI_ANY_ID,
> @@ -5094,7 +5110,10 @@ static struct pci_device_id serial_pci_tbl[] = {
> PCI_ANY_ID, PCI_ANY_ID,
> 0,
> 0, pbn_exar_XR17V358 },
> -
> + { PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V8358,
> + PCI_ANY_ID, PCI_ANY_ID,
> + 0,
> + 0, pbn_exar_XR17V8358 },
> /*
> * Topic TP560 Data/Fax/Voice 56k modem (reported by Evan Clarke)
> */
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index e63c02a..695605e 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -2020,6 +2020,7 @@
> #define PCI_DEVICE_ID_EXAR_XR17V352 0x0352
> #define PCI_DEVICE_ID_EXAR_XR17V354 0x0354
> #define PCI_DEVICE_ID_EXAR_XR17V358 0x0358
> +#define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358
Please read the top of this file, this line does not need to be added
here.
Please fix this up and resend.
thanks,
greg k-h
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