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-rw-r--r--drivers/serial/8250.c17
-rw-r--r--drivers/serial/8250_gsc.c2
-rw-r--r--drivers/serial/8250_pci.c17
-rw-r--r--drivers/serial/Kconfig16
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_core.c21
-rw-r--r--drivers/serial/dz.c24
-rw-r--r--drivers/serial/zs.c21
7 files changed, 90 insertions, 28 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 27f34a9f9cb..a97f1ae11f7 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1293,7 +1293,18 @@ receive_chars(struct uart_8250_port *up, unsigned int *status)
char flag;
do {
- ch = serial_inp(up, UART_RX);
+ if (likely(lsr & UART_LSR_DR))
+ ch = serial_inp(up, UART_RX);
+ else
+ /*
+ * Intel 82571 has a Serial Over Lan device that will
+ * set UART_LSR_BI without setting UART_LSR_DR when
+ * it receives a break. To avoid reading from the
+ * receive buffer without UART_LSR_DR bit set, we
+ * just force the read character to be 0
+ */
+ ch = 0;
+
flag = TTY_NORMAL;
up->port.icount.rx++;
@@ -1342,7 +1353,7 @@ receive_chars(struct uart_8250_port *up, unsigned int *status)
ignore_char:
lsr = serial_inp(up, UART_LSR);
- } while ((lsr & UART_LSR_DR) && (max_count-- > 0));
+ } while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (max_count-- > 0));
spin_unlock(&up->port.lock);
tty_flip_buffer_push(tty);
spin_lock(&up->port.lock);
@@ -1425,7 +1436,7 @@ serial8250_handle_port(struct uart_8250_port *up)
DEBUG_INTR("status = %x...", status);
- if (status & UART_LSR_DR)
+ if (status & (UART_LSR_DR | UART_LSR_BI))
receive_chars(up, &status);
check_modem_status(up);
if (status & UART_LSR_THRE)
diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index 4eb7437a404..0416ad3bc12 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -119,3 +119,5 @@ int __init probe_serial_gsc(void)
}
module_init(probe_serial_gsc);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index 1b36087665a..c2f23933155 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -767,6 +767,9 @@ pci_default_setup(struct serial_private *priv, struct pciserial_board *board,
#define PCI_SUBDEVICE_ID_POCTAL232 0x0308
#define PCI_SUBDEVICE_ID_POCTAL422 0x0408
+/* Unknown vendors/cards - this should not be in linux/pci_ids.h */
+#define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584
+
/*
* Master list of serial port init/setup/exit quirks.
* This does not describe the general nature of the port.
@@ -882,6 +885,15 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
},
{
.vendor = PCI_VENDOR_ID_PLX,
+ .device = PCI_DEVICE_ID_PLX_9050,
+ .subvendor = PCI_VENDOR_ID_PLX,
+ .subdevice = PCI_SUBDEVICE_ID_UNKNOWN_0x1584,
+ .init = pci_plx9050_init,
+ .setup = pci_default_setup,
+ .exit = __devexit_p(pci_plx9050_exit),
+ },
+ {
+ .vendor = PCI_VENDOR_ID_PLX,
.device = PCI_DEVICE_ID_PLX_ROMULUS,
.subvendor = PCI_VENDOR_ID_PLX,
.subdevice = PCI_DEVICE_ID_PLX_ROMULUS,
@@ -2197,6 +2209,11 @@ static struct pci_device_id serial_pci_tbl[] = {
{ PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_1077,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
pbn_b2_4_921600 },
+ /* Unknown card - subdevice 0x1584 */
+ { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+ PCI_VENDOR_ID_PLX,
+ PCI_SUBDEVICE_ID_UNKNOWN_0x1584, 0, 0,
+ pbn_b0_4_115200 },
{ PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
PCI_SUBVENDOR_ID_KEYSPAN,
PCI_SUBDEVICE_ID_KEYSPAN_SX2, 0, 0,
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 8fc7451c004..3b4a14e355c 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -942,22 +942,6 @@ config SERIAL_IP22_ZILOG_CONSOLE
depends on SERIAL_IP22_ZILOG=y
select SERIAL_CORE_CONSOLE
-config V850E_UART
- bool "NEC V850E on-chip UART support"
- depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
- select SERIAL_CORE
- default y
-
-config V850E_UARTB
- bool
- depends on V850E_UART && V850E_ME2
- default y
-
-config V850E_UART_CONSOLE
- bool "Use NEC V850E on-chip UART for console"
- depends on V850E_UART
- select SERIAL_CORE_CONSOLE
-
config SERIAL_SH_SCI
tristate "SuperH SCI(F) serial port support"
depends on SUPERH || H8300
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 1ff80de177d..a4f86927a74 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -435,10 +435,13 @@ static void cpm_uart_shutdown(struct uart_port *port)
}
/* Shut them really down and reinit buffer descriptors */
- if (IS_SMC(pinfo))
+ if (IS_SMC(pinfo)) {
+ out_be16(&pinfo->smcup->smc_brkcr, 0);
cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
- else
+ } else {
+ out_be16(&pinfo->sccup->scc_brkcr, 0);
cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX);
+ }
cpm_uart_initbd(pinfo);
}
@@ -554,9 +557,11 @@ static void cpm_uart_set_termios(struct uart_port *port,
* enables, because we want to put them back if they were
* present.
*/
- prev_mode = in_be16(&smcp->smc_smcmr);
- out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval | SMCMR_SM_UART);
- setbits16(&smcp->smc_smcmr, (prev_mode & (SMCMR_REN | SMCMR_TEN)));
+ prev_mode = in_be16(&smcp->smc_smcmr) & (SMCMR_REN | SMCMR_TEN);
+ /* Output in *one* operation, so we don't interrupt RX/TX if they
+ * were already enabled. */
+ out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval |
+ SMCMR_SM_UART | prev_mode);
} else {
out_be16(&sccp->scc_psmr, (sbits << 12) | scval);
}
@@ -1198,12 +1203,14 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
udbg_putc = NULL;
#endif
- cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
-
if (IS_SMC(pinfo)) {
+ out_be16(&pinfo->smcup->smc_brkcr, 0);
+ cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
clrbits8(&pinfo->smcp->smc_smcm, SMCM_RX | SMCM_TX);
clrbits16(&pinfo->smcp->smc_smcmr, SMCMR_REN | SMCMR_TEN);
} else {
+ out_be16(&pinfo->sccup->scc_brkcr, 0);
+ cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX);
clrbits16(&pinfo->sccp->scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
clrbits32(&pinfo->sccp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
}
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index a81d2c2ff8a..6042b87797a 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -642,6 +642,26 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios,
spin_unlock_irqrestore(&dport->port.lock, flags);
}
+/*
+ * Hack alert!
+ * Required solely so that the initial PROM-based console
+ * works undisturbed in parallel with this one.
+ */
+static void dz_pm(struct uart_port *uport, unsigned int state,
+ unsigned int oldstate)
+{
+ struct dz_port *dport = to_dport(uport);
+ unsigned long flags;
+
+ spin_lock_irqsave(&dport->port.lock, flags);
+ if (state < 3)
+ dz_start_tx(&dport->port);
+ else
+ dz_stop_tx(&dport->port);
+ spin_unlock_irqrestore(&dport->port.lock, flags);
+}
+
+
static const char *dz_type(struct uart_port *uport)
{
return "DZ";
@@ -738,6 +758,7 @@ static struct uart_ops dz_ops = {
.startup = dz_startup,
.shutdown = dz_shutdown,
.set_termios = dz_set_termios,
+ .pm = dz_pm,
.type = dz_type,
.release_port = dz_release_port,
.request_port = dz_request_port,
@@ -861,7 +882,10 @@ static int __init dz_console_setup(struct console *co, char *options)
if (ret)
return ret;
+ spin_lock_init(&dport->port.lock); /* For dz_pm(). */
+
dz_reset(dport);
+ dz_pm(uport, 0, -1);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
diff --git a/drivers/serial/zs.c b/drivers/serial/zs.c
index bd45b6230fd..9e6a873f820 100644
--- a/drivers/serial/zs.c
+++ b/drivers/serial/zs.c
@@ -787,7 +787,6 @@ static int zs_startup(struct uart_port *uport)
zport->regs[1] &= ~RxINT_MASK;
zport->regs[1] |= RxINT_ALL | TxINT_ENAB | EXT_INT_ENAB;
zport->regs[3] |= RxENABLE;
- zport->regs[5] |= TxENAB;
zport->regs[15] |= BRKIE;
write_zsreg(zport, R1, zport->regs[1]);
write_zsreg(zport, R3, zport->regs[3]);
@@ -814,7 +813,6 @@ static void zs_shutdown(struct uart_port *uport)
spin_lock_irqsave(&scc->zlock, flags);
- zport->regs[5] &= ~TxENAB;
zport->regs[3] &= ~RxENABLE;
write_zsreg(zport, R5, zport->regs[5]);
write_zsreg(zport, R3, zport->regs[3]);
@@ -959,6 +957,23 @@ static void zs_set_termios(struct uart_port *uport, struct ktermios *termios,
spin_unlock_irqrestore(&scc->zlock, flags);
}
+/*
+ * Hack alert!
+ * Required solely so that the initial PROM-based console
+ * works undisturbed in parallel with this one.
+ */
+static void zs_pm(struct uart_port *uport, unsigned int state,
+ unsigned int oldstate)
+{
+ struct zs_port *zport = to_zport(uport);
+
+ if (state < 3)
+ zport->regs[5] |= TxENAB;
+ else
+ zport->regs[5] &= ~TxENAB;
+ write_zsreg(zport, R5, zport->regs[5]);
+}
+
static const char *zs_type(struct uart_port *uport)
{
@@ -1041,6 +1056,7 @@ static struct uart_ops zs_ops = {
.startup = zs_startup,
.shutdown = zs_shutdown,
.set_termios = zs_set_termios,
+ .pm = zs_pm,
.type = zs_type,
.release_port = zs_release_port,
.request_port = zs_request_port,
@@ -1190,6 +1206,7 @@ static int __init zs_console_setup(struct console *co, char *options)
return ret;
zs_reset(zport);
+ zs_pm(uport, 0, -1);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-26 18:05:38 +0000