Add PCI id for WCH384_8S 8 port PCI-E serial card.
because this card has so many ports, you may have
to check these two options before use it:
CONFIG_SERIAL_8250_RUNTIME_UARTS
CONFIG_SERIAL_8250_NR_UARTS
Signed-off-by: Du Huanpeng <u74147@xxxxxxxxx>
---
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/8250/8250_pci.c
index 1a74d51..d8f43f2 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1776,6 +1776,39 @@ pci_wch_ch38x_setup(struct serial_private *priv,
return pci_default_setup(priv, board, port, idx);
}
+
+#define CH384_XINT_ENABLE_REG 0xEB
+#define CH384_XINT_ENABLE_BIT 0x02
+
+static int pci_wch_ch38x_init(struct pci_dev *dev)
+{
+ int max_port;
+ unsigned long iobase;
+
+
+ switch (dev->device) {
+ case 0x3853: /* 8 ports */
+ max_port = 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ iobase = pci_resource_start(dev, 0);
+ outb(CH384_XINT_ENABLE_BIT, iobase + CH384_XINT_ENABLE_REG);
+
+ return max_port;
+}
+
+static void pci_wch_ch38x_exit(struct pci_dev *dev)
+{
+ unsigned long iobase;
+
+ iobase = pci_resource_start(dev, 0);
+ outb(0x0, iobase + CH384_XINT_ENABLE_REG);
+}
+
+
static int
pci_sunix_setup(struct serial_private *priv,
const struct pciserial_board *board,
@@ -1867,6 +1900,7 @@ pci_moxa_setup(struct serial_private *priv,
#define PCIE_VENDOR_ID_WCH 0x1c00
#define PCIE_DEVICE_ID_WCH_CH382_2S1P 0x3250
#define PCIE_DEVICE_ID_WCH_CH384_4S 0x3470
+#define PCIE_DEVICE_ID_WCH_CH384_8S 0x3853
#define PCIE_DEVICE_ID_WCH_CH382_2S 0x3253
#define PCI_VENDOR_ID_ACCESIO 0x494f
@@ -2642,6 +2676,16 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subdevice = PCI_ANY_ID,
.setup = pci_wch_ch38x_setup,
},
+ /* WCH CH384 8S card (16850 clone) */
+ {
+ .vendor = PCIE_VENDOR_ID_WCH,
+ .device = PCIE_DEVICE_ID_WCH_CH384_8S,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .init = pci_wch_ch38x_init,
+ .exit = pci_wch_ch38x_exit,
+ .setup = pci_wch_ch38x_setup,
+ },
/*
* ASIX devices with FIFO bug
*/
@@ -2913,6 +2957,7 @@ enum pci_board_num_t {
pbn_fintek_F81512A,
pbn_wch382_2,
pbn_wch384_4,
+ pbn_wch384_8,
pbn_pericom_PI7C9X7951,
pbn_pericom_PI7C9X7952,
pbn_pericom_PI7C9X7954,
@@ -3650,6 +3695,13 @@ static struct pciserial_board pci_boards[] = {
.uart_offset = 8,
.first_offset = 0xC0,
},
+ [pbn_wch384_8] = {
+ .flags = FL_BASE0,
+ .num_ports = 8,
+ .base_baud = 115200,
+ .uart_offset = 8,
+ .first_offset = 0x00,
+ },
/*
* Pericom PI7C9X795[1248] Uno/Dual/Quad/Octal UART
*/
@@ -5566,6 +5618,10 @@ static const struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch384_4 },
+ { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_8S,
+ PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0, pbn_wch384_8 },
+
/* Fintek PCI serial cards */
{ PCI_DEVICE(0x1c29, 0x1104), .driver_data = pbn_fintek_4 },
{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },
--
2.7.4
