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Date: Tue, 7 Feb 2017 17:10:01 +0100
From: Jan Kiszka <jan.kiszka@...mens.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-serial@...r.kernel.org,
Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>,
Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH 4/7] serial: exar: Move Commtech adapters to 8250_exar as well
Those are exar-based, too.
With the required refactoring of the code to fit into 8250_exar, we
automatically fix the same issue pci_xr17v35x_setup had before: 8XMODE,
FCTL, TXTRG and RXTRG were always only set for port 0. Now they are
initialized for the correct target port by using port.membase.
Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
drivers/tty/serial/8250/8250_exar.c | 83 ++++++++++++++++++++++--
drivers/tty/serial/8250/8250_pci.c | 125 ------------------------------------
2 files changed, 78 insertions(+), 130 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index d3e3a7d..623b9d0 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -24,11 +24,15 @@
#include "8250.h"
-#define PCI_DEVICE_ID_COMMTECH_4224PCIE 0x0020
-#define PCI_DEVICE_ID_COMMTECH_4228PCIE 0x0021
-#define PCI_DEVICE_ID_COMMTECH_4222PCIE 0x0022
-#define PCI_DEVICE_ID_EXAR_XR17V4358 0x4358
-#define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358
+#define PCI_DEVICE_ID_COMMTECH_4222PCI335 0x0004
+#define PCI_DEVICE_ID_COMMTECH_4224PCI335 0x0002
+#define PCI_DEVICE_ID_COMMTECH_2324PCI335 0x000a
+#define PCI_DEVICE_ID_COMMTECH_2328PCI335 0x000b
+#define PCI_DEVICE_ID_COMMTECH_4224PCIE 0x0020
+#define PCI_DEVICE_ID_COMMTECH_4228PCIE 0x0021
+#define PCI_DEVICE_ID_COMMTECH_4222PCIE 0x0022
+#define PCI_DEVICE_ID_EXAR_XR17V4358 0x4358
+#define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358
#define UART_EXAR_MPIOINT_7_0 0x8f /* MPIOINT[7:0] */
#define UART_EXAR_MPIOLVL_7_0 0x90 /* MPIOLVL[7:0] */
@@ -84,6 +88,55 @@ static int default_setup(struct exar8250 *priv, struct pci_dev *pcidev,
}
static int
+pci_fastcom335_setup(struct exar8250 *priv, struct pci_dev *pcidev,
+ struct uart_8250_port *port, int idx)
+{
+ unsigned int offset = idx * 0x200;
+ unsigned int baud = 1843200;
+ u8 __iomem *p;
+ int err;
+
+ port->port.flags |= UPF_EXAR_EFR;
+ port->port.uartclk = baud * 16;
+
+ err = default_setup(priv, pcidev, idx, offset, port);
+ if (err)
+ return err;
+
+ p = port->port.membase;
+
+ writeb(0x00, p + UART_EXAR_8XMODE);
+ writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR);
+ writeb(32, p + UART_EXAR_TXTRG);
+ writeb(32, p + UART_EXAR_RXTRG);
+
+ /*
+ * Setup Multipurpose Input/Output pins.
+ */
+ if (idx == 0) {
+ switch (pcidev->device) {
+ case PCI_DEVICE_ID_COMMTECH_4222PCI335:
+ case PCI_DEVICE_ID_COMMTECH_4224PCI335:
+ writeb(0x78, p + UART_EXAR_MPIOLVL_7_0);
+ writeb(0x00, p + UART_EXAR_MPIOINV_7_0);
+ writeb(0x00, p + UART_EXAR_MPIOSEL_7_0);
+ break;
+ case PCI_DEVICE_ID_COMMTECH_2324PCI335:
+ case PCI_DEVICE_ID_COMMTECH_2328PCI335:
+ writeb(0x00, p + UART_EXAR_MPIOLVL_7_0);
+ writeb(0xc0, p + UART_EXAR_MPIOINV_7_0);
+ writeb(0xc0, p + UART_EXAR_MPIOSEL_7_0);
+ break;
+ }
+ writeb(0x00, p + UART_EXAR_MPIOINT_7_0);
+ writeb(0x00, p + UART_EXAR_MPIO3T_7_0);
+ writeb(0x00, p + UART_EXAR_MPIOOD_7_0);
+ }
+
+ return 0;
+}
+
+static int
pci_connect_tech_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port, int idx)
{
@@ -292,6 +345,21 @@ static int __maybe_unused exar_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(exar_pci_pm, exar_suspend, exar_resume);
+static const struct exar8250_board pbn_fastcom335_2 = {
+ .num_ports = 2,
+ .setup = pci_fastcom335_setup,
+};
+
+static const struct exar8250_board pbn_fastcom335_4 = {
+ .num_ports = 4,
+ .setup = pci_fastcom335_setup,
+};
+
+static const struct exar8250_board pbn_fastcom335_8 = {
+ .num_ports = 8,
+ .setup = pci_fastcom335_setup,
+};
+
static const struct exar8250_board pbn_connect = {
.setup = pci_connect_tech_setup,
};
@@ -376,6 +444,11 @@ static struct pci_device_id exar_pci_tbl[] = {
EXAR_DEVICE(COMMTECH, COMMTECH_4222PCIE, pbn_exar_XR17V35x),
EXAR_DEVICE(COMMTECH, COMMTECH_4224PCIE, pbn_exar_XR17V35x),
EXAR_DEVICE(COMMTECH, COMMTECH_4228PCIE, pbn_exar_XR17V35x),
+
+ EXAR_DEVICE(COMMTECH, COMMTECH_4222PCI335, pbn_fastcom335_2),
+ EXAR_DEVICE(COMMTECH, COMMTECH_4224PCI335, pbn_fastcom335_4),
+ EXAR_DEVICE(COMMTECH, COMMTECH_2324PCI335, pbn_fastcom335_4),
+ EXAR_DEVICE(COMMTECH, COMMTECH_2328PCI335, pbn_fastcom335_8),
{ 0, }
};
MODULE_DEVICE_TABLE(pci, exar_pci_tbl);
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 0b63109..50cd1cf 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1622,54 +1622,6 @@ static int pci_eg20t_init(struct pci_dev *dev)
#define UART_EXAR_MPIOINV_15_8 0x98 /* MPIOINV[15:8] */
#define UART_EXAR_MPIOSEL_15_8 0x99 /* MPIOSEL[15:8] */
#define UART_EXAR_MPIOOD_15_8 0x9a /* MPIOOD[15:8] */
-#define PCI_DEVICE_ID_COMMTECH_4222PCI335 0x0004
-#define PCI_DEVICE_ID_COMMTECH_4224PCI335 0x0002
-#define PCI_DEVICE_ID_COMMTECH_2324PCI335 0x000a
-#define PCI_DEVICE_ID_COMMTECH_2328PCI335 0x000b
-
-static int
-pci_fastcom335_setup(struct serial_private *priv,
- const struct pciserial_board *board,
- struct uart_8250_port *port, int idx)
-{
- u8 __iomem *p;
-
- p = pci_ioremap_bar(priv->dev, 0);
- if (p == NULL)
- return -ENOMEM;
-
- port->port.flags |= UPF_EXAR_EFR;
-
- /*
- * Setup Multipurpose Input/Output pins.
- */
- if (idx == 0) {
- switch (priv->dev->device) {
- case PCI_DEVICE_ID_COMMTECH_4222PCI335:
- case PCI_DEVICE_ID_COMMTECH_4224PCI335:
- writeb(0x78, p + UART_EXAR_MPIOLVL_7_0);
- writeb(0x00, p + UART_EXAR_MPIOINV_7_0);
- writeb(0x00, p + UART_EXAR_MPIOSEL_7_0);
- break;
- case PCI_DEVICE_ID_COMMTECH_2324PCI335:
- case PCI_DEVICE_ID_COMMTECH_2328PCI335:
- writeb(0x00, p + UART_EXAR_MPIOLVL_7_0);
- writeb(0xc0, p + UART_EXAR_MPIOINV_7_0);
- writeb(0xc0, p + UART_EXAR_MPIOSEL_7_0);
- break;
- }
- writeb(0x00, p + UART_EXAR_MPIOINT_7_0);
- writeb(0x00, p + UART_EXAR_MPIO3T_7_0);
- writeb(0x00, p + UART_EXAR_MPIOOD_7_0);
- }
- writeb(0x00, p + UART_EXAR_8XMODE);
- writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR);
- writeb(32, p + UART_EXAR_TXTRG);
- writeb(32, p + UART_EXAR_RXTRG);
- iounmap(p);
-
- return pci_default_setup(priv, board, port, idx);
-}
static int
pci_wch_ch353_setup(struct serial_private *priv,
@@ -2431,38 +2383,6 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.setup = pci_asix_setup,
},
/*
- * Commtech, Inc. Fastcom adapters
- *
- */
- {
- .vendor = PCI_VENDOR_ID_COMMTECH,
- .device = PCI_DEVICE_ID_COMMTECH_4222PCI335,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .setup = pci_fastcom335_setup,
- },
- {
- .vendor = PCI_VENDOR_ID_COMMTECH,
- .device = PCI_DEVICE_ID_COMMTECH_4224PCI335,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .setup = pci_fastcom335_setup,
- },
- {
- .vendor = PCI_VENDOR_ID_COMMTECH,
- .device = PCI_DEVICE_ID_COMMTECH_2324PCI335,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .setup = pci_fastcom335_setup,
- },
- {
- .vendor = PCI_VENDOR_ID_COMMTECH,
- .device = PCI_DEVICE_ID_COMMTECH_2328PCI335,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- .setup = pci_fastcom335_setup,
- },
- /*
* Broadcom TruManage (NetXtreme)
*/
{
@@ -2573,10 +2493,6 @@ enum pci_board_num_t {
pbn_b0_4_1152000,
- pbn_b0_2_1152000_200,
- pbn_b0_4_1152000_200,
- pbn_b0_8_1152000_200,
-
pbn_b0_4_1250000,
pbn_b0_2_1843200,
@@ -2780,27 +2696,6 @@ static struct pciserial_board pci_boards[] = {
.uart_offset = 8,
},
- [pbn_b0_2_1152000_200] = {
- .flags = FL_BASE0,
- .num_ports = 2,
- .base_baud = 1152000,
- .uart_offset = 0x200,
- },
-
- [pbn_b0_4_1152000_200] = {
- .flags = FL_BASE0,
- .num_ports = 4,
- .base_baud = 1152000,
- .uart_offset = 0x200,
- },
-
- [pbn_b0_8_1152000_200] = {
- .flags = FL_BASE0,
- .num_ports = 8,
- .base_baud = 1152000,
- .uart_offset = 0x200,
- },
-
[pbn_b0_4_1250000] = {
.flags = FL_BASE0,
.num_ports = 4,
@@ -5248,26 +5143,6 @@ static struct pci_device_id serial_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID,
0, 0, pbn_wch384_4 },
- /*
- * Commtech, Inc. Fastcom adapters
- */
- { PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4222PCI335,
- PCI_ANY_ID, PCI_ANY_ID,
- 0,
- 0, pbn_b0_2_1152000_200 },
- { PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4224PCI335,
- PCI_ANY_ID, PCI_ANY_ID,
- 0,
- 0, pbn_b0_4_1152000_200 },
- { PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_2324PCI335,
- PCI_ANY_ID, PCI_ANY_ID,
- 0,
- 0, pbn_b0_4_1152000_200 },
- { PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_2328PCI335,
- PCI_ANY_ID, PCI_ANY_ID,
- 0,
- 0, pbn_b0_8_1152000_200 },
-
/* Fintek PCI serial cards */
{ PCI_DEVICE(0x1c29, 0x1104), .driver_data = pbn_fintek_4 },
{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },
--
2.1.4
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