On Tue, Aug 06, 2019 at 12:43:22PM +0300, Andy Shevchenko wrote:
> Intel Elkhart Lake may use High Speed UART from OSE IP block.
> This is different to what we have in main LPSS, though compatible
> with older version of it, which is handled by this driver.
>
> Enable OSE HS UART on Intel Elkhart Lake by adding PCI IDs.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_lpss.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
> index cfe0ab443250..5f72ef3ea574 100644
> --- a/drivers/tty/serial/8250/8250_lpss.c
> +++ b/drivers/tty/serial/8250/8250_lpss.c
> @@ -24,6 +24,13 @@
> #define PCI_DEVICE_ID_INTEL_BSW_UART1 0x228a
> #define PCI_DEVICE_ID_INTEL_BSW_UART2 0x228c
>
> +#define PCI_DEVICE_ID_INTEL_EHL_UART0 0x4b96
> +#define PCI_DEVICE_ID_INTEL_EHL_UART1 0x4b97
> +#define PCI_DEVICE_ID_INTEL_EHL_UART2 0x4b98
> +#define PCI_DEVICE_ID_INTEL_EHL_UART3 0x4b99
> +#define PCI_DEVICE_ID_INTEL_EHL_UART4 0x4b9a
> +#define PCI_DEVICE_ID_INTEL_EHL_UART5 0x4b9b
> +
> #define PCI_DEVICE_ID_INTEL_BDW_UART1 0x9ce3
> #define PCI_DEVICE_ID_INTEL_BDW_UART2 0x9ce4
>
> @@ -349,6 +356,11 @@ static const struct lpss8250_board byt_board = {
> .setup = byt_serial_setup,
> };
>
> +static const struct lpss8250_board ehl_board = {
> + .freq = 200000000,
> + .base_baud = 12500000,
> +};
> +
> static const struct lpss8250_board qrk_board = {
> .freq = 44236800,
> .base_baud = 2764800,
> @@ -358,6 +370,12 @@ static const struct lpss8250_board qrk_board = {
>
> static const struct pci_device_id pci_ids[] = {
> { PCI_DEVICE_DATA(INTEL, QRK_UARTx, &qrk_board) },
> + { PCI_DEVICE_DATA(INTEL, EHL_UART0, &ehl_board) },
> + { PCI_DEVICE_DATA(INTEL, EHL_UART1, &ehl_board) },
> + { PCI_DEVICE_DATA(INTEL, EHL_UART2, &ehl_board) },
> + { PCI_DEVICE_DATA(INTEL, EHL_UART3, &ehl_board) },
> + { PCI_DEVICE_DATA(INTEL, EHL_UART4, &ehl_board) },
> + { PCI_DEVICE_DATA(INTEL, EHL_UART5, &ehl_board) },
> { PCI_DEVICE_DATA(INTEL, BYT_UART1, &byt_board) },
> { PCI_DEVICE_DATA(INTEL, BYT_UART2, &byt_board) },
> { PCI_DEVICE_DATA(INTEL, BSW_UART1, &byt_board) },
> --
> 2.20.1
--
heikki
