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charset="utf-8" Add support for MOXA Mini PCIe serial boards: - CP102N: 2 ports | RS232 - CP104N: 4 ports | RS232 - CP112N: 2 ports | RS232/RS422/RS485 - CP114N: 4 ports | RS232/RS422/RS485 - CP132N: 2 ports | RS422/RS485 - CP134N: 4 ports | RS422/RS485 Signed-off-by: Crescent CY Hsieh Reviewed-by: Jiri Slaby --- drivers/tty/serial/8250/8250_pci.c | 56 ++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8= 250_pci.c index dd48b910bb05..d22f727491b5 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -83,14 +83,20 @@ =20 #define PCI_DEVICE_ID_MOXA_CP102E 0x1024 #define PCI_DEVICE_ID_MOXA_CP102EL 0x1025 +#define PCI_DEVICE_ID_MOXA_CP102N 0x1027 #define PCI_DEVICE_ID_MOXA_CP104EL_A 0x1045 +#define PCI_DEVICE_ID_MOXA_CP104N 0x1046 +#define PCI_DEVICE_ID_MOXA_CP112N 0x1121 #define PCI_DEVICE_ID_MOXA_CP114EL 0x1144 +#define PCI_DEVICE_ID_MOXA_CP114N 0x1145 #define PCI_DEVICE_ID_MOXA_CP116E_A_A 0x1160 #define PCI_DEVICE_ID_MOXA_CP116E_A_B 0x1161 #define PCI_DEVICE_ID_MOXA_CP118EL_A 0x1182 #define PCI_DEVICE_ID_MOXA_CP118E_A_I 0x1183 #define PCI_DEVICE_ID_MOXA_CP132EL 0x1322 +#define PCI_DEVICE_ID_MOXA_CP132N 0x1323 #define PCI_DEVICE_ID_MOXA_CP134EL_A 0x1342 +#define PCI_DEVICE_ID_MOXA_CP134N 0x1343 #define PCI_DEVICE_ID_MOXA_CP138E_A 0x1381 #define PCI_DEVICE_ID_MOXA_CP168EL_A 0x1683 =20 @@ -1959,6 +1965,49 @@ pci_sunix_setup(struct serial_private *priv, return setup_port(priv, port, bar, offset, 0); } =20 +#define MOXA_PUART_GPIO_EN 0x09 +#define MOXA_PUART_GPIO_OUT 0x0A + +#define MOXA_GPIO_PIN2 BIT(2) + +static bool pci_moxa_is_mini_pcie(unsigned short device) +{ + if (device =3D=3D PCI_DEVICE_ID_MOXA_CP102N || + device =3D=3D PCI_DEVICE_ID_MOXA_CP104N || + device =3D=3D PCI_DEVICE_ID_MOXA_CP112N || + device =3D=3D PCI_DEVICE_ID_MOXA_CP114N || + device =3D=3D PCI_DEVICE_ID_MOXA_CP132N || + device =3D=3D PCI_DEVICE_ID_MOXA_CP134N) + return true; + + return false; +} + +static int pci_moxa_init(struct pci_dev *dev) +{ + unsigned short device =3D dev->device; + resource_size_t iobar_addr =3D pci_resource_start(dev, 2); + unsigned int num_ports =3D (device & 0x00F0) >> 4; + u8 val; + + /* + * Enable hardware buffer to prevent break signal output when system boot= s up. + * This hardware buffer is only supported on Mini PCIe series. + */ + if (pci_moxa_is_mini_pcie(device)) { + /* Set GPIO direction */ + val =3D inb(iobar_addr + MOXA_PUART_GPIO_EN); + val |=3D MOXA_GPIO_PIN2; + outb(val, iobar_addr + MOXA_PUART_GPIO_EN); + /* Enable low GPIO */ + val =3D inb(iobar_addr + MOXA_PUART_GPIO_OUT); + val &=3D ~MOXA_GPIO_PIN2; + outb(val, iobar_addr + MOXA_PUART_GPIO_OUT); + } + + return num_ports; +} + static int pci_moxa_setup(struct serial_private *priv, const struct pciserial_board *board, @@ -2635,6 +2684,7 @@ static struct pci_serial_quirk pci_serial_quirks[] = =3D { .device =3D PCI_ANY_ID, .subvendor =3D PCI_ANY_ID, .subdevice =3D PCI_ANY_ID, + .init =3D pci_moxa_init, .setup =3D pci_moxa_setup, }, { @@ -5351,14 +5401,20 @@ static const struct pci_device_id serial_pci_tbl[] = =3D { */ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102E), pbn_moxa_2 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102EL), pbn_moxa_2 }, + { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102N), pbn_moxa_2 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104EL_A), pbn_moxa_4 }, + { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104N), pbn_moxa_4 }, + { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP112N), pbn_moxa_2 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP114EL), pbn_moxa_4 }, + { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP114N), pbn_moxa_4 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP116E_A_A), pbn_moxa_8 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP116E_A_B), pbn_moxa_8 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118EL_A), pbn_moxa_8 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118E_A_I), pbn_moxa_8 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132EL), pbn_moxa_2 }, + { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132N), pbn_moxa_2 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP134EL_A), pbn_moxa_4 }, + { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP134N), pbn_moxa_4 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP138E_A), pbn_moxa_8 }, { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168EL_A), pbn_moxa_8 }, =20 --=20 2.34.1