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Merge master.kernel.org:/home/rmk/linux-2.6-serial

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* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Provide Cirrus EP93xx AMBA PL010 serial support.
  [SERIAL] amba-pl010: allow platforms to specify modem control method
  [SERIAL] Remove obsoleted au1x00_uart driver
  [SERIAL] Small time UART configuration fix for AU1100 processor
This commit is contained in:
Linus Torvalds
2006-03-28 13:52:37 -08:00
vanhempi 9561b03dc3 aee85fe8e8
commit d4965b3e2f
10 muutettua tiedostoa jossa 190 lisäystä ja 1483 poistoa
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46
arch/arm/mach-integrator/core.c
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@@ -15,7 +15,9 @@
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/termios.h>
#include <linux/amba/bus.h>
#include <linux/amba/serial.h>
#include <asm/hardware.h>
#include <asm/irq.h>
@@ -28,6 +30,8 @@
#include "common.h"
static struct amba_pl010_data integrator_uart_data;
static struct amba_device rtc_device = {
.dev = {
.bus_id = "mb:15",
@@ -44,6 +48,7 @@ static struct amba_device rtc_device = {
static struct amba_device uart0_device = {
.dev = {
.bus_id = "mb:16",
.platform_data = &integrator_uart_data,
},
.res = {
.start = INTEGRATOR_UART0_BASE,
@@ -57,6 +62,7 @@ static struct amba_device uart0_device = {
static struct amba_device uart1_device = {
.dev = {
.bus_id = "mb:17",
.platform_data = &integrator_uart_data,
},
.res = {
.start = INTEGRATOR_UART1_BASE,
@@ -115,6 +121,46 @@ static int __init integrator_init(void)
arch_initcall(integrator_init);
/*
* On the Integrator platform, the port RTS and DTR are provided by
* bits in the following SC_CTRLS register bits:
* RTS DTR
* UART0 7 6
* UART1 5 4
*/
#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET)
#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET)
static void integrator_uart_set_mctrl(struct amba_device *dev, void __iomem *base, unsigned int mctrl)
{
unsigned int ctrls = 0, ctrlc = 0, rts_mask, dtr_mask;
if (dev == &uart0_device) {
rts_mask = 1 << 4;
dtr_mask = 1 << 5;
} else {
rts_mask = 1 << 6;
dtr_mask = 1 << 7;
}
if (mctrl & TIOCM_RTS)
ctrlc |= rts_mask;
else
ctrls |= rts_mask;
if (mctrl & TIOCM_DTR)
ctrlc |= dtr_mask;
else
ctrls |= dtr_mask;
__raw_writel(ctrls, SC_CTRLS);
__raw_writel(ctrlc, SC_CTRLC);
}
static struct amba_pl010_data integrator_uart_data = {
.set_mctrl = integrator_uart_set_mctrl,
};
#define CM_CTRL IO_ADDRESS(INTEGRATOR_HDR_BASE) + INTEGRATOR_HDR_CTRL_OFFSET
static DEFINE_SPINLOCK(cm_lock);