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-rw-r--r--drivers/serial/68360serial.c3
-rw-r--r--drivers/serial/8250.c67
-rw-r--r--drivers/serial/8250_au1x00.c100
-rw-r--r--drivers/serial/8250_pci.c2
-rw-r--r--drivers/serial/Kconfig11
-rw-r--r--drivers/serial/Makefile2
-rw-r--r--drivers/serial/amba-pl011.c30
-rw-r--r--drivers/serial/atmel_serial.c1
-rw-r--r--drivers/serial/bfin_5xx.c56
-rw-r--r--drivers/serial/cpm_uart/cpm_uart.h3
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_core.c19
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm1.c14
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm2.c52
-rw-r--r--drivers/serial/crisv10.c7
-rw-r--r--drivers/serial/dz.c2
-rw-r--r--drivers/serial/imx.c111
-rw-r--r--drivers/serial/kgdboc.c168
-rw-r--r--drivers/serial/mcfserial.c1
-rw-r--r--drivers/serial/of_serial.c18
-rw-r--r--drivers/serial/serial_core.c91
-rw-r--r--drivers/serial/sh-sci.c7
-rw-r--r--drivers/serial/sh-sci.h60
-rw-r--r--drivers/serial/sunzilog.c34
-rw-r--r--drivers/serial/ucc_uart.c16
-rw-r--r--drivers/serial/vr41xx_siu.c15
25 files changed, 643 insertions, 247 deletions
diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c
index 2aa6bfe8fdb..f5946360187 100644
--- a/drivers/serial/68360serial.c
+++ b/drivers/serial/68360serial.c
@@ -51,6 +51,7 @@ extern int kgdb_output_string (const char* s, unsigned int count);
/* #ifdef CONFIG_SERIAL_CONSOLE */ /* This seems to be a post 2.0 thing - mles */
#include <linux/console.h>
+#include <linux/jiffies.h>
/* this defines the index into rs_table for the port to use
*/
@@ -1729,7 +1730,7 @@ static void rs_360_wait_until_sent(struct tty_struct *tty, int timeout)
msleep_interruptible(jiffies_to_msecs(char_time));
if (signal_pending(current))
break;
- if (timeout && ((orig_jiffies + timeout) < jiffies))
+ if (timeout && (time_after(jiffies, orig_jiffies + timeout)))
break;
/* The 'tx_cur' is really the next buffer to send. We
* have to back up to the previous BD and wait for it
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 77f7a7f0646..ea41f262645 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1740,6 +1740,60 @@ static inline void wait_for_xmitr(struct uart_8250_port *up, int bits)
}
}
+#ifdef CONFIG_CONSOLE_POLL
+/*
+ * Console polling routines for writing and reading from the uart while
+ * in an interrupt or debug context.
+ */
+
+static int serial8250_get_poll_char(struct uart_port *port)
+{
+ struct uart_8250_port *up = (struct uart_8250_port *)port;
+ unsigned char lsr = serial_inp(up, UART_LSR);
+
+ while (!(lsr & UART_LSR_DR))
+ lsr = serial_inp(up, UART_LSR);
+
+ return serial_inp(up, UART_RX);
+}
+
+
+static void serial8250_put_poll_char(struct uart_port *port,
+ unsigned char c)
+{
+ unsigned int ier;
+ struct uart_8250_port *up = (struct uart_8250_port *)port;
+
+ /*
+ * First save the IER then disable the interrupts
+ */
+ ier = serial_in(up, UART_IER);
+ if (up->capabilities & UART_CAP_UUE)
+ serial_out(up, UART_IER, UART_IER_UUE);
+ else
+ serial_out(up, UART_IER, 0);
+
+ wait_for_xmitr(up, BOTH_EMPTY);
+ /*
+ * Send the character out.
+ * If a LF, also do CR...
+ */
+ serial_out(up, UART_TX, c);
+ if (c == 10) {
+ wait_for_xmitr(up, BOTH_EMPTY);
+ serial_out(up, UART_TX, 13);
+ }
+
+ /*
+ * Finally, wait for transmitter to become empty
+ * and restore the IER
+ */
+ wait_for_xmitr(up, BOTH_EMPTY);
+ serial_out(up, UART_IER, ier);
+}
+
+#endif /* CONFIG_CONSOLE_POLL */
+
static int serial8250_startup(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
@@ -1814,6 +1868,7 @@ static int serial8250_startup(struct uart_port *port)
}
if (is_real_interrupt(up->port.irq)) {
+ unsigned char iir1;
/*
* Test for UARTs that do not reassert THRE when the
* transmitter is idle and the interrupt has already
@@ -1827,7 +1882,7 @@ static int serial8250_startup(struct uart_port *port)
wait_for_xmitr(up, UART_LSR_THRE);
serial_out_sync(up, UART_IER, UART_IER_THRI);
udelay(1); /* allow THRE to set */
- serial_in(up, UART_IIR);
+ iir1 = serial_in(up, UART_IIR);
serial_out(up, UART_IER, 0);
serial_out_sync(up, UART_IER, UART_IER_THRI);
udelay(1); /* allow a working UART time to re-assert THRE */
@@ -1840,7 +1895,7 @@ static int serial8250_startup(struct uart_port *port)
* If the interrupt is not reasserted, setup a timer to
* kick the UART on a regular basis.
*/
- if (iir & UART_IIR_NO_INT) {
+ if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) {
pr_debug("ttyS%d - using backup timer\n", port->line);
up->timer.function = serial8250_backup_timeout;
up->timer.data = (unsigned long)up;
@@ -2174,7 +2229,9 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
}
serial8250_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
- tty_termios_encode_baud_rate(termios, baud, baud);
+ /* Don't rewrite B0 */
+ if (tty_termios_baud_rate(termios))
+ tty_termios_encode_baud_rate(termios, baud, baud);
}
static void
@@ -2386,6 +2443,10 @@ static struct uart_ops serial8250_pops = {
.request_port = serial8250_request_port,
.config_port = serial8250_config_port,
.verify_port = serial8250_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_get_char = serial8250_get_poll_char,
+ .poll_put_char = serial8250_put_poll_char,
+#endif
};
static struct uart_8250_port serial8250_ports[UART_NR];
diff --git a/drivers/serial/8250_au1x00.c b/drivers/serial/8250_au1x00.c
deleted file mode 100644
index 58015fd14be..00000000000
--- a/drivers/serial/8250_au1x00.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Serial Device Initialisation for Au1x00
- *
- * (C) Copyright Embedded Alley Solutions, Inc 2005
- * Author: Pantelis Antoniou <pantelis@embeddedalley.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/module.h>
-#include <linux/serial_core.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-
-#include <linux/serial_8250.h>
-
-#include <asm/mach-au1x00/au1000.h>
-
-#include "8250.h"
-
-#define PORT(_base, _irq) \
- { \
- .iobase = _base, \
- .membase = (void __iomem *)_base,\
- .mapbase = CPHYSADDR(_base), \
- .irq = _irq, \
- .uartclk = 0, /* filled */ \
- .regshift = 2, \
- .iotype = UPIO_AU, \
- .flags = UPF_SKIP_TEST \
- }
-
-static struct plat_serial8250_port au1x00_data[] = {
-#if defined(CONFIG_SOC_AU1000)
- PORT(UART0_ADDR, AU1000_UART0_INT),
- PORT(UART1_ADDR, AU1000_UART1_INT),
- PORT(UART2_ADDR, AU1000_UART2_INT),
- PORT(UART3_ADDR, AU1000_UART3_INT),
-#elif defined(CONFIG_SOC_AU1500)
- PORT(UART0_ADDR, AU1500_UART0_INT),
- PORT(UART3_ADDR, AU1500_UART3_INT),
-#elif defined(CONFIG_SOC_AU1100)
- PORT(UART0_ADDR, AU1100_UART0_INT),
- PORT(UART1_ADDR, AU1100_UART1_INT),
- /* The internal UART2 does not exist on the AU1100 processor. */
- PORT(UART3_ADDR, AU1100_UART3_INT),
-#elif defined(CONFIG_SOC_AU1550)
- PORT(UART0_ADDR, AU1550_UART0_INT),
- PORT(UART1_ADDR, AU1550_UART1_INT),
- PORT(UART3_ADDR, AU1550_UART3_INT),
-#elif defined(CONFIG_SOC_AU1200)
- PORT(UART0_ADDR, AU1200_UART0_INT),
- PORT(UART1_ADDR, AU1200_UART1_INT),
-#endif
- { },
-};
-
-static struct platform_device au1x00_device = {
- .name = "serial8250",
- .id = PLAT8250_DEV_AU1X00,
- .dev = {
- .platform_data = au1x00_data,
- },
-};
-
-static int __init au1x00_init(void)
-{
- int i;
- unsigned int uartclk;
-
- /* get uart clock */
- uartclk = get_au1x00_uart_baud_base() * 16;
-
- /* fill up uartclk */
- for (i = 0; au1x00_data[i].flags ; i++)
- au1x00_data[i].uartclk = uartclk;
-
- return platform_device_register(&au1x00_device);
-}
-
-/* XXX: Yes, I know this doesn't yet work. */
-static void __exit au1x00_exit(void)
-{
- platform_device_unregister(&au1x00_device);
-}
-
-module_init(au1x00_init);
-module_exit(au1x00_exit);
-
-MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>");
-MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index f97224ce59d..6e57382b913 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -775,7 +775,7 @@ pci_default_setup(struct serial_private *priv, struct pciserial_board *board,
* This list is ordered alphabetically by vendor then device.
* Specific entries must come before more generic entries.
*/
-static struct pci_serial_quirk pci_serial_quirks[] = {
+static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
/*
* ADDI-DATA GmbH communication cards <info@addi-data.com>
*/
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index cf627cd1b4c..34b809e3b59 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -262,12 +262,12 @@ config SERIAL_8250_ACORN
cards. If unsure, say N.
config SERIAL_8250_AU1X00
- bool "AU1X00 serial port support"
+ bool "Au1x00 serial port support"
depends on SERIAL_8250 != n && SOC_AU1X00
help
- If you have an Au1x00 board and want to use the serial port, say Y
- to this option. The driver can handle 1 or 2 serial ports.
- If unsure, say N.
+ If you have an Au1x00 SOC based board and want to use the serial port,
+ say Y to this option. The driver can handle up to 4 serial ports,
+ depending on the SOC. If unsure, say N.
config SERIAL_8250_RM9K
bool "Support for MIPS RM9xxx integrated serial port"
@@ -961,6 +961,9 @@ config SERIAL_CORE
config SERIAL_CORE_CONSOLE
bool
+config CONSOLE_POLL
+ bool
+
config SERIAL_68328
bool "68328 serial support"
depends on M68328 || M68EZ328 || M68VZ328
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 640cfe44a56..f02ff9fad01 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -20,7 +20,6 @@ obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o
obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o
obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o
obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o
-obj-$(CONFIG_SERIAL_8250_AU1X00) += 8250_au1x00.o
obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o
@@ -66,4 +65,5 @@ obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
+obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index 40604a09292..08adc1de4a7 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -314,6 +314,32 @@ static void pl011_break_ctl(struct uart_port *port, int break_state)
spin_unlock_irqrestore(&uap->port.lock, flags);
}
+#ifdef CONFIG_CONSOLE_POLL
+static int pl010_get_poll_char(struct uart_port *port)
+{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
+ unsigned int status;
+
+ do {
+ status = readw(uap->port.membase + UART01x_FR);
+ } while (status & UART01x_FR_RXFE);
+
+ return readw(uap->port.membase + UART01x_DR);
+}
+
+static void pl010_put_poll_char(struct uart_port *port,
+ unsigned char ch)
+{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
+
+ while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF)
+ barrier();
+
+ writew(ch, uap->port.membase + UART01x_DR);
+}
+
+#endif /* CONFIG_CONSOLE_POLL */
+
static int pl011_startup(struct uart_port *port)
{
struct uart_amba_port *uap = (struct uart_amba_port *)port;
@@ -572,6 +598,10 @@ static struct uart_ops amba_pl011_pops = {
.request_port = pl010_request_port,
.config_port = pl010_config_port,
.verify_port = pl010_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_get_char = pl010_get_poll_char,
+ .poll_put_char = pl010_put_poll_char,
+#endif
};
static struct uart_amba_port *amba_ports[UART_NR];
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 55492fa095a..c065a704a93 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -96,7 +96,6 @@
/* PDC registers */
#define UART_PUT_PTCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_PTCR)
-#define UART_GET_TCR(port) __raw_readl((port)->membase + ATMEL_PDC_TCR)
#define UART_GET_PTSR(port) __raw_readl((port)->membase + ATMEL_PDC_PTSR)
#define UART_PUT_RPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RPR)
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 46bb47f37b9..5f55534a290 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -151,7 +151,8 @@ void kgdb_put_debug_char(int chr)
{
struct bfin_serial_port *uart;
- if (CONFIG_KGDB_UART_PORT<0 || CONFIG_KGDB_UART_PORT>=NR_PORTS)
+ if (CONFIG_KGDB_UART_PORT < 0
+ || CONFIG_KGDB_UART_PORT >= BFIN_UART_NR_PORTS)
uart = &bfin_serial_ports[0];
else
uart = &bfin_serial_ports[CONFIG_KGDB_UART_PORT];
@@ -173,7 +174,8 @@ int kgdb_get_debug_char(void)
struct bfin_serial_port *uart;
unsigned char chr;
- if (CONFIG_KGDB_UART_PORT<0 || CONFIG_KGDB_UART_PORT>=NR_PORTS)
+ if (CONFIG_KGDB_UART_PORT < 0
+ || CONFIG_KGDB_UART_PORT >= BFIN_UART_NR_PORTS)
uart = &bfin_serial_ports[0];
else
uart = &bfin_serial_ports[CONFIG_KGDB_UART_PORT];
@@ -192,7 +194,7 @@ int kgdb_get_debug_char(void)
}
#endif
-#if ANOMALY_05000230 && defined(CONFIG_SERIAL_BFIN_PIO)
+#if ANOMALY_05000363 && defined(CONFIG_SERIAL_BFIN_PIO)
# define UART_GET_ANOMALY_THRESHOLD(uart) ((uart)->anomaly_threshold)
# define UART_SET_ANOMALY_THRESHOLD(uart, v) ((uart)->anomaly_threshold = (v))
#else
@@ -237,7 +239,7 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
}
#endif
- if (ANOMALY_05000230) {
+ if (ANOMALY_05000363) {
/* The BF533 (and BF561) family of processors have a nice anomaly
* where they continuously generate characters for a "single" break.
* We have to basically ignore this flood until the "next" valid
@@ -249,9 +251,6 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
* timeout was picked as it must absolutely be larger than 1
* character time +/- some percent. So 1.5 sounds good. All other
* Blackfin families operate properly. Woo.
- * Note: While Anomaly 05000230 does not directly address this,
- * the changes that went in for it also fixed this issue.
- * That anomaly was fixed in 0.5+ silicon. I like bunnies.
*/
if (anomaly_start.tv_sec) {
struct timeval curr;
@@ -285,7 +284,7 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
}
if (status & BI) {
- if (ANOMALY_05000230)
+ if (ANOMALY_05000363)
if (bfin_revid() < 5)
do_gettimeofday(&anomaly_start);
uart->port.icount.brk++;
@@ -507,8 +506,7 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart)
uart->rx_dma_buf.tail = uart->rx_dma_buf.head;
}
- uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES;
- add_timer(&(uart->rx_dma_timer));
+ mod_timer(&(uart->rx_dma_timer), jiffies + DMA_RX_FLUSH_JIFFIES);
}
static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id)
@@ -551,9 +549,7 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id)
clear_dma_irqstat(uart->rx_dma_channel);
spin_unlock(&uart->port.lock);
- del_timer(&(uart->rx_dma_timer));
- uart->rx_dma_timer.expires = jiffies;
- add_timer(&(uart->rx_dma_timer));
+ mod_timer(&(uart->rx_dma_timer), jiffies);
return IRQ_HANDLED;
}
@@ -749,7 +745,7 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
struct bfin_serial_port *uart = (struct bfin_serial_port *)port;
unsigned long flags;
unsigned int baud, quot;
- unsigned short val, ier, lsr, lcr = 0;
+ unsigned short val, ier, lcr = 0;
switch (termios->c_cflag & CSIZE) {
case CS8:
@@ -806,10 +802,6 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15);
- do {
- lsr = UART_GET_LSR(uart);
- } while (!(lsr & TEMT));
-
/* Disable UART */
ier = UART_GET_IER(uart);
#ifdef CONFIG_BF54x
@@ -900,6 +892,31 @@ bfin_serial_verify_port(struct uart_port *port, struct serial_struct *ser)
return 0;
}
+/*
+ * Enable the IrDA function if tty->ldisc.num is N_IRDA.
+ * In other cases, disable IrDA function.
+ */
+static void bfin_set_ldisc(struct tty_struct *tty)
+{
+ int line = tty->index;
+ unsigned short val;
+
+ if (line >= tty->driver->num)
+ return;
+
+ switch (tty->ldisc.num) {
+ case N_IRDA:
+ val = UART_GET_GCTL(&bfin_serial_ports[line]);
+ val |= (IREN | RPOLC);
+ UART_PUT_GCTL(&bfin_serial_ports[line], val);
+ break;
+ default:
+ val = UART_GET_GCTL(&bfin_serial_ports[line]);
+ val &= ~(IREN | RPOLC);
+ UART_PUT_GCTL(&bfin_serial_ports[line], val);
+ }
+}
+
static struct uart_ops bfin_serial_pops = {
.tx_empty = bfin_serial_tx_empty,
.set_mctrl = bfin_serial_set_mctrl,
@@ -1172,7 +1189,7 @@ static struct uart_driver bfin_serial_reg = {
.dev_name = BFIN_SERIAL_NAME,
.major = BFIN_SERIAL_MAJOR,
.minor = BFIN_SERIAL_MINOR,
- .nr = NR_PORTS,
+ .nr = BFIN_UART_NR_PORTS,
.cons = BFIN_SERIAL_CONSOLE,
};
@@ -1261,6 +1278,7 @@ static int __init bfin_serial_init(void)
ret = uart_register_driver(&bfin_serial_reg);
if (ret == 0) {
+ bfin_serial_reg.tty_driver->set_ldisc = bfin_set_ldisc;
ret = platform_driver_register(&bfin_serial_driver);
if (ret) {
pr_debug("uart register failed\n");
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index 32b9737759c..0cc39f82d7c 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -92,6 +92,9 @@ extern struct uart_cpm_port cpm_uart_ports[UART_NR];
/* these are located in their respective files */
void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd);
+void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port,
+ struct device_node *np);
+void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram);
int cpm_uart_init_portdesc(void);
int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 236af9d3385..a638ba0679a 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -966,24 +966,23 @@ static int cpm_uart_init_port(struct device_node *np,
if (!mem)
return -ENOMEM;
- pram = of_iomap(np, 1);
- if (!pram) {
- ret = -ENOMEM;
- goto out_mem;
- }
-
if (of_device_is_compatible(np, "fsl,cpm1-scc-uart") ||
of_device_is_compatible(np, "fsl,cpm2-scc-uart")) {
pinfo->sccp = mem;
- pinfo->sccup = pram;
+ pinfo->sccup = pram = cpm_uart_map_pram(pinfo, np);
} else if (of_device_is_compatible(np, "fsl,cpm1-smc-uart") ||
of_device_is_compatible(np, "fsl,cpm2-smc-uart")) {
pinfo->flags |= FLAG_SMC;
pinfo->smcp = mem;
- pinfo->smcup = pram;
+ pinfo->smcup = pram = cpm_uart_map_pram(pinfo, np);
} else {
ret = -ENODEV;
- goto out_pram;
+ goto out_mem;
+ }
+
+ if (!pram) {
+ ret = -ENOMEM;
+ goto out_mem;
}
pinfo->tx_nrfifos = TX_NUM_FIFO;
@@ -1007,7 +1006,7 @@ static int cpm_uart_init_port(struct device_node *np,
return cpm_uart_request_port(&pinfo->port);
out_pram:
- iounmap(pram);
+ cpm_uart_unmap_pram(pinfo, pram);
out_mem:
iounmap(mem);
return ret;
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index 6ea0366e26a..74f1432bb24 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -45,6 +45,8 @@
#include <linux/serial_core.h>
#include <linux/kernel.h>
+#include <linux/of.h>
+
#include "cpm_uart.h"
/**************************************************************/
@@ -54,6 +56,18 @@ void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
{
cpm_command(port->command, cmd);
}
+
+void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port,
+ struct device_node *np)
+{
+ return of_iomap(np, 1);
+}
+
+void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram)
+{
+ iounmap(pram);
+}
+
#else
void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
{
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index d9af06a791b..bb862e2f54c 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -41,6 +41,9 @@
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/fs_pd.h>
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <asm/prom.h>
+#endif
#include <linux/serial_core.h>
#include <linux/kernel.h>
@@ -54,6 +57,55 @@ void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
{
cpm_command(port->command, cmd);
}
+
+void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port,
+ struct device_node *np)
+{
+ void __iomem *pram;
+ unsigned long offset;
+ struct resource res;
+ unsigned long len;
+
+ /* Don't remap parameter RAM if it has already been initialized
+ * during console setup.
+ */
+ if (IS_SMC(port) && port->smcup)
+ return port->smcup;
+ else if (!IS_SMC(port) && port->sccup)
+ return port->sccup;
+
+ if (of_address_to_resource(np, 1, &res))
+ return NULL;
+
+ len = 1 + res.end - res.start;
+ pram = ioremap(res.start, len);
+ if (!pram)
+ return NULL;
+
+ if (!IS_SMC(port))
+ return pram;
+
+ if (len != 2) {
+ printk(KERN_WARNING "cpm_uart[%d]: device tree references "
+ "SMC pram, using boot loader/wrapper pram mapping. "
+ "Please fix your device tree to reference the pram "
+ "base register instead.\n",
+ port->port.line);
+ return pram;
+ }
+
+ offset = cpm_dpalloc(PROFF_SMC_SIZE, 64);
+ out_be16(pram, offset);
+ iounmap(pram);
+ return cpm_muram_addr(offset);
+}
+
+void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram)
+{
+ if (!IS_SMC(port))
+ iounmap(pram);
+}
+
#else
void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
{
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 383c4e660cd..88e7c1d5b91 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -3582,6 +3582,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file,
{
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+ lock_kernel();
+
if (clear & TIOCM_RTS)
e100_rts(info, 0);
if (clear & TIOCM_DTR)
@@ -3601,6 +3603,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file,
e100_ri_out(info, 1);
if (set & TIOCM_CD)
e100_cd_out(info, 1);
+
+ unlock_kernel();
return 0;
}
@@ -3610,6 +3614,7 @@ rs_tiocmget(struct tty_struct *tty, struct file *file)
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
unsigned int result;
+ lock_kernel();
result =
(!E100_RTS_GET(info) ? TIOCM_RTS : 0)
| (!E100_DTR_GET(info) ? TIOCM_DTR : 0)
@@ -3618,6 +3623,8 @@ rs_tiocmget(struct tty_struct *tty, struct file *file)
| (!E100_CD_GET(info) ? TIOCM_CAR : 0)
| (!E100_CTS_GET(info) ? TIOCM_CTS : 0);
+ unlock_kernel();
+
#ifdef SERIAL_DEBUG_IO
printk(KERN_DEBUG "ser%i: modem state: %i 0x%08X\n",
info->line, result, result);
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index 116211fcd36..0dddd68b20d 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -819,7 +819,7 @@ static void dz_console_putchar(struct uart_port *uport, int ch)
dz_out(dport, DZ_TCR, mask);
iob();
udelay(2);
- } while (loops--);
+ } while (--loops);
if (loops) /* Cannot send otherwise. */
dz_out(dport, DZ_TDR, ch);
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 16ba9ac7a56..5a375bf0ebf 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -166,15 +166,6 @@
#define SERIAL_IMX_MAJOR 204
#define MINOR_START 41
-#define NR_PORTS 2
-
-#define IMX_ISR_PASS_LIMIT 256
-
-/*
- * This is the size of our serial port register set.
- */
-#define UART_PORT_SIZE 0x100
-
/*
* This determines how often we check the modem status signals
* for any change. They generally aren't connected to an IRQ
@@ -358,66 +349,60 @@ static irqreturn_t imx_rxint(int irq, void *dev_id)
struct tty_struct *tty = sport->port.info->tty;
unsigned long flags, temp;
- rx = readl(sport->port.membase + URXD0);
spin_lock_irqsave(&sport->port.lock,flags);
- do {
+ while (readl(sport->port.membase + USR2) & USR2_RDR) {
flg = TTY_NORMAL;
sport->port.icount.rx++;
+ rx = readl(sport->port.membase + URXD0);
+
temp = readl(sport->port.membase + USR2);
- if( temp & USR2_BRCD ) {
+ if (temp & USR2_BRCD) {
writel(temp | USR2_BRCD, sport->port.membase + USR2);
- if(uart_handle_break(&sport->port))
- goto ignore_char;
+ if (uart_handle_break(&sport->port))
+ continue;
}
if (uart_handle_sysrq_char
(&sport->port, (unsigned char)rx))
- goto ignore_char;
+ continue;
+
+ if (rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) ) {
+ if (rx & URXD_PRERR)
+ sport->port.icount.parity++;
+ else if (rx & URXD_FRMERR)
+ sport->port.icount.frame++;
+ if (rx & URXD_OVRRUN)
+ sport->port.icount.overrun++;
+
+ if (rx & sport->port.ignore_status_mask) {
+ if (++ignored > 100)
+ goto out;
+ continue;
+ }
+
+ rx &= sport->port.read_status_mask;
+
+ if (rx & URXD_PRERR)
+ flg = TTY_PARITY;
+ else if (rx & URXD_FRMERR)
+ flg = TTY_FRAME;
+ if (rx & URXD_OVRRUN)
+ flg = TTY_OVERRUN;
- if( rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) )
- goto handle_error;
+#ifdef SUPPORT_SYSRQ
+ sport->port.sysrq = 0;
+#endif
+ }
- error_return:
tty_insert_flip_char(tty, rx, flg);
-
- ignore_char:
- rx = readl(sport->port.membase + URXD0);
- } while(rx & URXD_CHARRDY);
+ }
out:
spin_unlock_irqrestore(&sport->port.lock,flags);
tty_flip_buffer_push(tty);
return IRQ_HANDLED;
-
-handle_error:
- if (rx & URXD_PRERR)
- sport->port.icount.parity++;
- else if (rx & URXD_FRMERR)
- sport->port.icount.frame++;
- if (rx & URXD_OVRRUN)
- sport->port.icount.overrun++;
-
- if (rx & sport->port.ignore_status_mask) {
- if (++ignored > 100)
- goto out;
- goto ignore_char;
- }
-
- rx &= sport->port.read_status_mask;
-
- if (rx & URXD_PRERR)
- flg = TTY_PARITY;
- else if (rx & URXD_FRMERR)
- flg = TTY_FRAME;
- if (rx & URXD_OVRRUN)
- flg = TTY_OVERRUN;
-
-#ifdef SUPPORT_SYSRQ
- sport->port.sysrq = 0;
-#endif
- goto error_return;
}
/*
@@ -546,7 +531,7 @@ static int imx_startup(struct uart_port *port)
writel(USR1_RTSD, sport->port.membase + USR1);
temp = readl(sport->port.membase + UCR1);
- temp |= (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
+ temp |= UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN;
writel(temp, sport->port.membase + UCR1);
temp = readl(sport->port.membase + UCR2);
@@ -731,9 +716,11 @@ static const char *imx_type(struct uart_port *port)
*/
static void imx_release_port(struct uart_port *port)
{
- struct imx_port *sport = (struct imx_port *)port;
+ struct platform_device *pdev = to_platform_device(port->dev);
+ struct resource *mmres;
- release_mem_region(sport->port.mapbase, UART_PORT_SIZE);
+ mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(mmres->start, mmres->end - mmres->start + 1);
}
/*
@@ -741,10 +728,18 @@ static void imx_release_port(struct uart_port *port)
*/
static int imx_request_port(struct uart_port *port)
{
- struct imx_port *sport = (struct imx_port *)port;
+ struct platform_device *pdev = to_platform_device(port->dev);
+ struct resource *mmres;
+ void *ret;
+
+ mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mmres)
+ return -ENODEV;
+
+ ret = request_mem_region(mmres->start, mmres->end - mmres->start + 1,
+ "imx-uart");
- return request_mem_region(sport->port.mapbase, UART_PORT_SIZE,
- "imx-uart") != NULL ? 0 : -EBUSY;
+ return ret ? 0 : -EBUSY;
}
/*
@@ -815,7 +810,7 @@ static struct imx_port imx_ports[] = {
.type = PORT_IMX,
.iotype = UPIO_MEM,
.membase = (void *)IMX_UART1_BASE,
- .mapbase = IMX_UART1_BASE, /* FIXME */
+ .mapbase = 0x00206000,
.irq = UART1_MINT_RX,
.uartclk = 16000000,
.fifosize = 32,
@@ -831,7 +826,7 @@ static struct imx_port imx_ports[] = {
.type = PORT_IMX,
.iotype = UPIO_MEM,
.membase = (void *)IMX_UART2_BASE,
- .mapbase = IMX_UART2_BASE, /* FIXME */
+ .mapbase = 0x00207000,
.irq = UART2_MINT_RX,
.uartclk = 16000000,
.fifosize = 32,
diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c
new file mode 100644
index 00000000000..9cf03327386
--- /dev/null
+++ b/drivers/serial/kgdboc.c
@@ -0,0 +1,168 @@
+/*
+ * Based on the same principle as kgdboe using the NETPOLL api, this
+ * driver uses a console polling api to implement a gdb serial inteface
+ * which is multiplexed on a console port.
+ *
+ * Maintainer: Jason Wessel <jason.wessel@windriver.com>
+ *
+ * 2007-2008 (c) Jason Wessel - Wind River Systems, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <linux/kgdb.h>
+#include <linux/tty.h>
+
+#define MAX_CONFIG_LEN 40
+
+static struct kgdb_io kgdboc_io_ops;
+
+/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
+static int configured = -1;
+
+static char config[MAX_CONFIG_LEN];
+static struct kparam_string kps = {
+ .string = config,
+ .maxlen = MAX_CONFIG_LEN,
+};
+
+static struct tty_driver *kgdb_tty_driver;
+static int kgdb_tty_line;
+
+static int kgdboc_option_setup(char *opt)
+{
+ if (strlen(opt) > MAX_CONFIG_LEN) {
+ printk(KERN_ERR "kgdboc: config string too long\n");
+ return -ENOSPC;
+ }
+ strcpy(config, opt);
+
+ return 0;
+}
+
+__setup("kgdboc=", kgdboc_option_setup);
+
+static int configure_kgdboc(void)
+{
+ struct tty_driver *p;
+ int tty_line = 0;
+ int err;
+
+ err = kgdboc_option_setup(config);
+ if (err || !strlen(config) || isspace(config[0]))
+ goto noconfig;
+
+ err = -ENODEV;
+
+ p = tty_find_polling_driver(config, &tty_line);
+ if (!p)
+ goto noconfig;
+
+ kgdb_tty_driver = p;
+ kgdb_tty_line = tty_line;
+
+ err = kgdb_register_io_module(&kgdboc_io_ops);
+ if (err)
+ goto noconfig;
+
+ configured = 1;
+
+ return 0;
+
+noconfig:
+ config[0] = 0;
+ configured = 0;
+
+ return err;
+}
+
+static int __init init_kgdboc(void)
+{
+ /* Already configured? */
+ if (configured == 1)
+ return 0;
+
+ return configure_kgdboc();
+}
+
+static void cleanup_kgdboc(void)
+{
+ if (configured == 1)
+ kgdb_unregister_io_module(&kgdboc_io_ops);
+}
+
+static int kgdboc_get_char(void)
+{
+ return kgdb_tty_driver->poll_get_char(kgdb_tty_driver, kgdb_tty_line);
+}
+
+static void kgdboc_put_char(u8 chr)
+{
+ kgdb_tty_driver->poll_put_char(kgdb_tty_driver, kgdb_tty_line, chr);
+}
+
+static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
+{
+ int len = strlen(kmessage);
+
+ if (len >= MAX_CONFIG_LEN) {
+ printk(KERN_ERR "kgdboc: config string too long\n");
+ return -ENOSPC;
+ }
+
+ /* Only copy in the string if the init function has not run yet */
+ if (configured < 0) {
+ strcpy(config, kmessage);
+ return 0;
+ }
+
+ if (kgdb_connected) {
+ printk(KERN_ERR
+ "kgdboc: Cannot reconfigure while KGDB is connected.\n");
+
+ return -EBUSY;
+ }
+
+ strcpy(config, kmessage);
+ /* Chop out \n char as a result of echo */
+ if (config[len - 1] == '\n')
+ config[len - 1] = '\0';
+
+ if (configured == 1)
+ cleanup_kgdboc();
+
+ /* Go and configure with the new params. */
+ return configure_kgdboc();
+}
+
+static void kgdboc_pre_exp_handler(void)
+{
+ /* Increment the module count when the debugger is active */
+ if (!kgdb_connected)
+ try_module_get(THIS_MODULE);
+}
+
+static void kgdboc_post_exp_handler(void)
+{
+ /* decrement the module count when the debugger detaches */
+ if (!kgdb_connected)
+ module_put(THIS_MODULE);
+}
+
+static struct kgdb_io kgdboc_io_ops = {
+ .name = "kgdboc",
+ .read_char = kgdboc_get_char,
+ .write_char = kgdboc_put_char,
+ .pre_exception = kgdboc_pre_exp_handler,
+ .post_exception = kgdboc_post_exp_handler,
+};
+
+module_init(init_kgdboc);
+module_exit(cleanup_kgdboc);
+module_param_call(kgdboc, param_set_kgdboc_var, param_get_string, &kps, 0644);
+MODULE_PARM_DESC(kgdboc, "<serial_device>[,baud]");
+MODULE_DESCRIPTION("KGDB Console TTY Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index 99af084c7ce..ddd3aa50d4a 100644
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -40,7 +40,6 @@
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
-#include <asm/semaphore.h>
#include <asm/delay.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
index c0e50a46105..25029c7570b 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -31,7 +31,8 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
struct resource resource;
struct device_node *np = ofdev->node;
const unsigned int *clk, *spd;
- int ret;
+ const u32 *prop;
+ int ret, prop_size;
memset(port, 0, sizeof *port);
spd = of_get_property(np, "current-speed", NULL);
@@ -49,6 +50,17 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
spin_lock_init(&port->lock);
port->mapbase = resource.start;
+
+ /* Check for shifted address mapping */
+ prop = of_get_property(np, "reg-offset", &prop_size);
+ if (prop && (prop_size == sizeof(u32)))
+ port->mapbase += *prop;
+
+ /* Check for registers offset within the devices address range */
+ prop = of_get_property(np, "reg-shift", &prop_size);
+ if (prop && (prop_size == sizeof(u32)))
+ port->regshift = *prop;
+
port->irq = irq_of_parse_and_map(np, 0);
port->iotype = UPIO_MEM;
port->type = type;
@@ -56,7 +68,9 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP
| UPF_FIXED_PORT;
port->dev = &ofdev->dev;
- port->custom_divisor = *clk / (16 * (*spd));
+ /* If current-speed was set, then try not to change it. */
+ if (spd)
+ port->custom_divisor = *clk / (16 * (*spd));
return 0;
}
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 0f5a17987cc..977ce820ce3 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -329,13 +329,15 @@ EXPORT_SYMBOL(uart_update_timeout);
* If it's still invalid, we try 9600 baud.
*
* Update the @termios structure to reflect the baud rate
- * we're actually going to be using.
+ * we're actually going to be using. Don't do this for the case
+ * where B0 is requested ("hang up").
*/
unsigned int
uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
struct ktermios *old, unsigned int min, unsigned int max)
{
unsigned int try, baud, altbaud = 38400;
+ int hung_up = 0;
upf_t flags = port->flags & UPF_SPD_MASK;
if (flags == UPF_SPD_HI)
@@ -360,8 +362,10 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
/*
* Special case: B0 rate.
*/
- if (baud == 0)
+ if (baud == 0) {
+ hung_up = 1;
baud = 9600;
+ }
if (baud >= min && baud <= max)
return baud;
@@ -373,7 +377,9 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
termios->c_cflag &= ~CBAUD;
if (old) {
baud = tty_termios_baud_rate(old);
- tty_termios_encode_baud_rate(termios, baud, baud);
+ if (!hung_up)
+ tty_termios_encode_baud_rate(termios,
+ baud, baud);
old = NULL;
continue;
}
@@ -382,7 +388,8 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
* As a last resort, if the quotient is zero,
* default to 9600 bps
*/
- tty_termios_encode_baud_rate(termios, 9600, 9600);
+ if (!hung_up)
+ tty_termios_encode_baud_rate(termios, 9600, 9600);
}
return 0;
@@ -1771,7 +1778,7 @@ static int uart_read_proc(char *page, char **start, off_t off,
}
#endif
-#ifdef CONFIG_SERIAL_CORE_CONSOLE
+#if defined(CONFIG_SERIAL_CORE_CONSOLE) || defined(CONFIG_CONSOLE_POLL)
/*
* uart_console_write - write a console message to a serial port
* @port: the port to write the message
@@ -1827,7 +1834,7 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
* options. The format of the string is <baud><parity><bits><flow>,
* eg: 115200n8r
*/
-void __init
+void
uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow)
{
char *s = options;
@@ -1842,6 +1849,7 @@ uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow)
if (*s)
*flow = *s;
}
+EXPORT_SYMBOL_GPL(uart_parse_options);
struct baud_rates {
unsigned int rate;
@@ -1872,7 +1880,7 @@ static const struct baud_rates baud_rates[] = {
* @bits: number of data bits
* @flow: flow control character - 'r' (rts)
*/
-int __init
+int
uart_set_options(struct uart_port *port, struct console *co,
int baud, int parity, int bits, int flow)
{
@@ -1924,10 +1932,16 @@ uart_set_options(struct uart_port *port, struct console *co,
port->mctrl |= TIOCM_DTR;
port->ops->set_termios(port, &termios, &dummy);
- co->cflag = termios.c_cflag;
+ /*
+ * Allow the setting of the UART parameters with a NULL console
+ * too:
+ */
+ if (co)
+ co->cflag = termios.c_cflag;
return 0;
}
+EXPORT_SYMBOL_GPL(uart_set_options);
#endif /* CONFIG_SERIAL_CORE_CONSOLE */
static void uart_change_pm(struct uart_state *state, int pm_state)
@@ -2182,6 +2196,60 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state,
}
}
+#ifdef CONFIG_CONSOLE_POLL
+
+static int uart_poll_init(struct tty_driver *driver, int line, char *options)
+{
+ struct uart_driver *drv = driver->driver_state;
+ struct uart_state *state = drv->state + line;
+ struct uart_port *port;
+ int baud = 9600;
+ int bits = 8;
+ int parity = 'n';
+ int flow = 'n';
+
+ if (!state || !state->port)
+ return -1;
+
+ port = state->port;
+ if (!(port->ops->poll_get_char && port->ops->poll_put_char))
+ return -1;
+
+ if (options) {
+ uart_parse_options(options, &baud, &parity, &bits, &flow);
+ return uart_set_options(port, NULL, baud, parity, bits, flow);
+ }
+
+ return 0;
+}
+
+static int uart_poll_get_char(struct tty_driver *driver, int line)
+{
+ struct uart_driver *drv = driver->driver_state;
+ struct uart_state *state = drv->state + line;
+ struct uart_port *port;
+
+ if (!state || !state->port)
+ return -1;
+
+ port = state->port;
+ return port->ops->poll_get_char(port);
+}
+
+static void uart_poll_put_char(struct tty_driver *driver, int line, char ch)
+{
+ struct uart_driver *drv = driver->driver_state;
+ struct uart_state *state = drv->state + line;
+ struct uart_port *port;
+
+ if (!state || !state->port)
+ return;
+
+ port = state->port;
+ port->ops->poll_put_char(port, ch);
+}
+#endif
+
static const struct tty_operations uart_ops = {
.open = uart_open,
.close = uart_close,
@@ -2206,6 +2274,11 @@ static const struct tty_operations uart_ops = {
#endif
.tiocmget = uart_tiocmget,
.tiocmset = uart_tiocmset,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_init = uart_poll_init,
+ .poll_get_char = uart_poll_get_char,
+ .poll_put_char = uart_poll_put_char,
+#endif
};
/**
@@ -2356,7 +2429,7 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port)
*/
tty_dev = tty_register_device(drv->tty_driver, port->line, port->dev);
if (likely(!IS_ERR(tty_dev))) {
- device_can_wakeup(tty_dev) = 1;
+ device_init_wakeup(tty_dev, 1);
device_set_wakeup_enable(tty_dev, 0);
} else
printk(KERN_ERR "Cannot register tty device on line %d\n",
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index eff593080d4..c2ea5d4df44 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -333,7 +333,6 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
}
sci_out(port, SCFCR, fcr_val);
}
-
#elif defined(CONFIG_CPU_SH3)
/* For SH7705, SH7706, SH7707, SH7709, SH7709A, SH7729 */
static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
@@ -384,6 +383,12 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
sci_out(port, SCFCR, fcr_val);
}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
+{
+ /* Nothing to do here.. */
+ sci_out(port, SCFCR, 0);
+}
#else
/* For SH7750 */
static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 01a9dd715f5..fa8700a968f 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -1,20 +1,5 @@
-/* $Id: sh-sci.h,v 1.4 2004/02/19 16:43:56 lethal Exp $
- *
- * linux/drivers/serial/sh-sci.h
- *
- * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
- * Copyright (C) 1999, 2000 Niibe Yutaka
- * Copyright (C) 2000 Greg Banks
- * Copyright (C) 2002, 2003 Paul Mundt
- * Modified to support multiple serial ports. Stuart Menefy (May 2000).
- * Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003).
- * Modified to support H8/300 Series Yoshinori Sato (Feb 2004).
- * Removed SH7300 support (Jul 2007).
- * Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Aug 2007).
- */
#include <linux/serial_core.h>
#include <asm/io.h>
-
#include <asm/gpio.h>
#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
@@ -102,6 +87,15 @@
# define SCSPTR0 SCPDR0
# define SCIF_ORER 0x0001 /* overrun error bit */
# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+# define SCSPTR0 0xa4050160
+# define SCSPTR1 0xa405013e
+# define SCSPTR2 0xa4050160
+# define SCSPTR3 0xa405013e
+# define SCSPTR4 0xa4050128
+# define SCSPTR5 0xa4050128
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
# define SCIF_ONLY
#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
@@ -395,6 +389,11 @@
h8_sci_offset, h8_sci_size) \
CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+ #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) \
+ CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size)
+ #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \
+ CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
#else
#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
@@ -419,6 +418,18 @@ SCIF_FNS(SCFDR, 0x1c, 16)
SCIF_FNS(SCxTDR, 0x20, 8)
SCIF_FNS(SCxRDR, 0x24, 8)
SCIF_FNS(SCLSR, 0x24, 16)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16)
+SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8)
+SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16)
+SCIx_FNS(SCxTDR, 0x20, 8, 0x0c, 8)
+SCIx_FNS(SCxSR, 0x14, 16, 0x10, 16)
+SCIx_FNS(SCxRDR, 0x24, 8, 0x14, 8)
+SCIF_FNS(SCTDSR, 0x0c, 8)
+SCIF_FNS(SCFER, 0x10, 16)
+SCIF_FNS(SCFCR, 0x18, 16)
+SCIF_FNS(SCFDR, 0x1c, 16)
+SCIF_FNS(SCLSR, 0x24, 16)
#else
/* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/
/* name off sz off sz off sz off sz off sz*/
@@ -589,6 +600,23 @@ static inline int sci_rxd_in(struct uart_port *port)
return ctrl_inb(SCPDR0) & 0x0001 ? 1 : 0; /* SCIF0 */
return 1;
}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xffe00000)
+ return ctrl_inb(SCSPTR0) & 0x0008 ? 1 : 0; /* SCIF0 */
+ if (port->mapbase == 0xffe10000)
+ return ctrl_inb(SCSPTR1) & 0x0020 ? 1 : 0; /* SCIF1 */
+ if (port->mapbase == 0xffe20000)
+ return ctrl_inb(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF2 */
+ if (port->mapbase == 0xa4e30000)
+ return ctrl_inb(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF3 */
+ if (port->mapbase == 0xa4e40000)
+ return ctrl_inb(SCSPTR4) & 0x0001 ? 1 : 0; /* SCIF4 */
+ if (port->mapbase == 0xa4e50000)
+ return ctrl_inb(SCSPTR5) & 0x0008 ? 1 : 0; /* SCIF5 */
+ return 1;
+}
#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
static inline int sci_rxd_in(struct uart_port *port)
{
@@ -727,6 +755,8 @@ static inline int sci_rxd_in(struct uart_port *port)
defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721)
#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
+#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(16*bps)-1)
#elif defined(__H8300H__) || defined(__H8300S__)
#define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1)
#elif defined(CONFIG_SUPERH64)
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index cb2e4050637..90a20a152eb 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1015,6 +1015,7 @@ static struct uart_ops sunzilog_pops = {
.verify_port = sunzilog_verify_port,
};
+static int uart_chip_count;
static struct uart_sunzilog_port *sunzilog_port_table;
static struct zilog_layout __iomem **sunzilog_chip_regs;
@@ -1230,7 +1231,7 @@ static inline struct console *SUNZILOG_CONSOLE(void)
#define SUNZILOG_CONSOLE() (NULL)
#endif
-static void __devinit sunzilog_init_kbdms(struct uart_sunzilog_port *up, int channel)
+static void __devinit sunzilog_init_kbdms(struct uart_sunzilog_port *up)
{
int baud, brg;
@@ -1304,7 +1305,7 @@ static void __devinit sunzilog_init_hw(struct uart_sunzilog_port *up)
up->curregs[R7] = 0x7E; /* SDLC Flag */
up->curregs[R9] = NV;
up->curregs[R7p] = 0x00;
- sunzilog_init_kbdms(up, up->port.line);
+ sunzilog_init_kbdms(up);
/* Only enable interrupts if an ISR handler available */
if (up->flags & SUNZILOG_FLAG_ISR_HANDLER)
up->curregs[R9] |= MIE;
@@ -1350,16 +1351,22 @@ static int zilog_irq = -1;
static int __devinit zs_probe(struct of_device *op, const struct of_device_id *match)
{
- static int inst;
+ static int kbm_inst, uart_inst;
+ int inst;
struct uart_sunzilog_port *up;
struct zilog_layout __iomem *rp;
- int keyboard_mouse;
+ int keyboard_mouse = 0;
int err;
- keyboard_mouse = 0;
if (of_find_property(op->node, "keyboard", NULL))
keyboard_mouse = 1;
+ /* uarts must come before keyboards/mice */
+ if (keyboard_mouse)
+ inst = uart_chip_count + kbm_inst;
+ else
+ inst = uart_inst;
+
sunzilog_chip_regs[inst] = of_ioremap(&op->resource[0], 0,
sizeof(struct zilog_layout),
"zs");
@@ -1427,6 +1434,7 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
rp, sizeof(struct zilog_layout));
return err;
}
+ uart_inst++;
} else {
printk(KERN_INFO "%s: Keyboard at MMIO 0x%llx (irq = %d) "
"is a %s\n",
@@ -1438,12 +1446,11 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
op->dev.bus_id,
(unsigned long long) up[1].port.mapbase,
op->irqs[0], sunzilog_type(&up[1].port));
+ kbm_inst++;
}
dev_set_drvdata(&op->dev, &up[0]);
- inst++;
-
return 0;
}
@@ -1491,28 +1498,25 @@ static struct of_platform_driver zs_driver = {
static int __init sunzilog_init(void)
{
struct device_node *dp;
- int err, uart_count;
- int num_keybms;
+ int err;
+ int num_keybms = 0;
int num_sunzilog = 0;
- num_keybms = 0;
for_each_node_by_name(dp, "zs") {
num_sunzilog++;
if (of_find_property(dp, "keyboard", NULL))
num_keybms++;
}
- uart_count = 0;
if (num_sunzilog) {
- int uart_count;
-
err = sunzilog_alloc_tables(num_sunzilog);
if (err)
goto out;
- uart_count = (num_sunzilog * 2) - (2 * num_keybms);
+ uart_chip_count = num_sunzilog - num_keybms;
- err = sunserial_register_minors(&sunzilog_reg, uart_count);
+ err = sunserial_register_minors(&sunzilog_reg,
+ uart_chip_count * 2);
if (err)
goto out_free_tables;
}
diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c
index e0994f06100..5e4310ccd59 100644
--- a/drivers/serial/ucc_uart.c
+++ b/drivers/serial/ucc_uart.c
@@ -1270,10 +1270,18 @@ static int ucc_uart_probe(struct of_device *ofdev,
/* Get the UCC number (device ID) */
/* UCCs are numbered 1-7 */
- iprop = of_get_property(np, "device-id", NULL);
- if (!iprop || (*iprop < 1) || (*iprop > UCC_MAX_NUM)) {
- dev_err(&ofdev->dev,
- "missing or invalid UCC specified in device tree\n");
+ iprop = of_get_property(np, "cell-index", NULL);
+ if (!iprop) {
+ iprop = of_get_property(np, "device-id", NULL);
+ if (!iprop) {
+ dev_err(&ofdev->dev, "UCC is unspecified in "
+ "device tree\n");
+ return -EINVAL;
+ }
+ }
+
+ if ((*iprop < 1) || (*iprop > UCC_MAX_NUM)) {
+ dev_err(&ofdev->dev, "no support for UCC%u\n", *iprop);
kfree(qe_port);
return -ENODEV;
}
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index 98ab649c1ff..bb6ce6bba32 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -1,7 +1,7 @@
/*
* Driver for NEC VR4100 series Serial Interface Unit.
*
- * Copyright (C) 2004-2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright (C) 2004-2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* Based on drivers/serial/8250.c, by Russell King.
*
@@ -840,6 +840,19 @@ static int __devinit siu_console_init(void)
console_initcall(siu_console_init);
+void __init vr41xx_siu_early_setup(struct uart_port *port)
+{
+ if (port->type == PORT_UNKNOWN)
+ return;
+
+ siu_uart_ports[port->line].line = port->line;
+ siu_uart_ports[port->line].type = port->type;
+ siu_uart_ports[port->line].uartclk = SIU_BAUD_BASE * 16;
+ siu_uart_ports[port->line].mapbase = port->mapbase;
+ siu_uart_ports[port->line].mapbase = port->mapbase;
+ siu_uart_ports[port->line].ops = &siu_uart_ops;
+}
+
#define SERIAL_VR41XX_CONSOLE &siu_console
#else
#define SERIAL_VR41XX_CONSOLE NULL
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-03 13:33:29 +0000