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-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/imx.c111
-rw-r--r--drivers/serial/mcfserial.c1
-rw-r--r--drivers/serial/of_serial.c4
-rw-r--r--drivers/serial/serial_core.c2
-rw-r--r--drivers/serial/sh-sci.c7
-rw-r--r--drivers/serial/sh-sci.h60
-rw-r--r--drivers/serial/ucc_uart.c16
11 files changed, 198 insertions, 91 deletions
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/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/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..8aacfb78dea 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -56,7 +56,9 @@ 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 c32c1ca75f6..a9ca03ead3e 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2422,7 +2422,7 @@ 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/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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-12 19:24:01 +0000