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r: 4438
b: refs/heads/master
c: 5e1c5ff
h: refs/heads/master
v: v3
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Tony Lindgren authored and Russell King committed Jul 10, 2005
1 parent f44b4c9 commit 36281ee
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: b91585560b59fd3ef4e20ca6f7d35aefda193774
refs/heads/master: 5e1c5ff4783e0ddd241580c9996390508722190e
99 changes: 99 additions & 0 deletions trunk/arch/arm/plat-omap/Kconfig
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if ARCH_OMAP

menu "TI OMAP Implementations"

config ARCH_OMAP_OTG
bool

choice
prompt "OMAP System Type"
default ARCH_OMAP1

config ARCH_OMAP1
bool "TI OMAP1"

config ARCH_OMAP2
bool "TI OMAP2"

endchoice

comment "OMAP Feature Selections"

config OMAP_MUX
bool "OMAP multiplexing support"
depends on ARCH_OMAP
default y
help
Pin multiplexing support for OMAP boards. If your bootloader
sets the multiplexing correctly, say N. Otherwise, or if unsure,
say Y.

config OMAP_MUX_DEBUG
bool "Multiplexing debug output"
depends on OMAP_MUX
default n
help
Makes the multiplexing functions print out a lot of debug info.
This is useful if you want to find out the correct values of the
multiplexing registers.

config OMAP_MUX_WARNINGS
bool "Warn about pins the bootloader didn't set up"
depends on OMAP_MUX
default y
help
Choose Y here to warn whenever driver initialization logic needs
to change the pin multiplexing setup. When there are no warnings
printed, it's safe to deselect OMAP_MUX for your product.

choice
prompt "System timer"
default OMAP_MPU_TIMER

config OMAP_MPU_TIMER
bool "Use mpu timer"
help
Select this option if you want to use the OMAP mpu timer. This
timer provides more intra-tick resolution than the 32KHz timer,
but consumes more power.

config OMAP_32K_TIMER
bool "Use 32KHz timer"
depends on ARCH_OMAP16XX
help
Select this option if you want to enable the OMAP 32KHz timer.
This timer saves power compared to the OMAP_MPU_TIMER, and has
support for no tick during idle. The 32KHz timer provides less
intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is
currently only available for OMAP-16xx.

endchoice

config OMAP_32K_TIMER_HZ
int "Kernel internal timer frequency for 32KHz timer"
range 32 1024
depends on OMAP_32K_TIMER
default "128"
help
Kernel internal timer frequency should be a divisor of 32768,
such as 64 or 128.

choice
prompt "Low-level debug console UART"
depends on ARCH_OMAP
default OMAP_LL_DEBUG_UART1

config OMAP_LL_DEBUG_UART1
bool "UART1"

config OMAP_LL_DEBUG_UART2
bool "UART2"

config OMAP_LL_DEBUG_UART3
bool "UART3"

endchoice

endmenu

endif
16 changes: 16 additions & 0 deletions trunk/arch/arm/plat-omap/Makefile
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#
# Makefile for the linux kernel.
#

# Common support
obj-y := common.o dma.o clock.o mux.o gpio.o mcbsp.o usb.o
obj-m :=
obj-n :=
obj- :=

# OCPI interconnect support for 1710, 1610 and 5912
obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o

# Power Management
obj-$(CONFIG_PM) += pm.o sleep.o

135 changes: 135 additions & 0 deletions trunk/arch/arm/plat-omap/common.c
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/*
* linux/arch/arm/plat-omap/common.c
*
* Code common to all OMAP machines.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/console.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>

#include <asm/hardware.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/mach/map.h>
#include <asm/hardware/clock.h>
#include <asm/io.h>
#include <asm/mach-types.h>

#include <asm/arch/board.h>
#include <asm/arch/mux.h>
#include <asm/arch/fpga.h>

#include "clock.h"

#define NO_LENGTH_CHECK 0xffffffff

extern int omap_bootloader_tag_len;
extern u8 omap_bootloader_tag[];

struct omap_board_config_kernel *omap_board_config;
int omap_board_config_size = 0;

static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out)
{
struct omap_board_config_kernel *kinfo = NULL;
int i;

#ifdef CONFIG_OMAP_BOOT_TAG
struct omap_board_config_entry *info = NULL;

if (omap_bootloader_tag_len > 4)
info = (struct omap_board_config_entry *) omap_bootloader_tag;
while (info != NULL) {
u8 *next;

if (info->tag == tag) {
if (skip == 0)
break;
skip--;
}

if ((info->len & 0x03) != 0) {
/* We bail out to avoid an alignment fault */
printk(KERN_ERR "OMAP peripheral config: Length (%d) not word-aligned (tag %04x)\n",
info->len, info->tag);
return NULL;
}
next = (u8 *) info + sizeof(*info) + info->len;
if (next >= omap_bootloader_tag + omap_bootloader_tag_len)
info = NULL;
else
info = (struct omap_board_config_entry *) next;
}
if (info != NULL) {
/* Check the length as a lame attempt to check for
* binary inconsistancy. */
if (len != NO_LENGTH_CHECK) {
/* Word-align len */
if (len & 0x03)
len = (len + 3) & ~0x03;
if (info->len != len) {
printk(KERN_ERR "OMAP peripheral config: Length mismatch with tag %x (want %d, got %d)\n",
tag, len, info->len);
return NULL;
}
}
if (len_out != NULL)
*len_out = info->len;
return info->data;
}
#endif
/* Try to find the config from the board-specific structures
* in the kernel. */
for (i = 0; i < omap_board_config_size; i++) {
if (omap_board_config[i].tag == tag) {
kinfo = &omap_board_config[i];
break;
}
}
if (kinfo == NULL)
return NULL;
return kinfo->data;
}

const void *__omap_get_config(u16 tag, size_t len, int nr)
{
return get_config(tag, len, nr, NULL);
}
EXPORT_SYMBOL(__omap_get_config);

const void *omap_get_var_config(u16 tag, size_t *len)
{
return get_config(tag, NO_LENGTH_CHECK, 0, len);
}
EXPORT_SYMBOL(omap_get_var_config);

static int __init omap_add_serial_console(void)
{
const struct omap_serial_console_config *info;

info = omap_get_config(OMAP_TAG_SERIAL_CONSOLE,
struct omap_serial_console_config);
if (info != NULL && info->console_uart) {
static char speed[11], *opt = NULL;

if (info->console_speed) {
snprintf(speed, sizeof(speed), "%u", info->console_speed);
opt = speed;
}
return add_preferred_console("ttyS", info->console_uart - 1, opt);
}
return 0;
}
console_initcall(omap_add_serial_console);
36 changes: 36 additions & 0 deletions trunk/arch/arm/plat-omap/common.h
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/*
* linux/arch/arm/plat-omap/common.h
*
* Header for code common to all OMAP machines.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef __ARCH_ARM_MACH_OMAP_COMMON_H
#define __ARCH_ARM_MACH_OMAP_COMMON_H

struct sys_timer;

extern void omap_map_common_io(void);
extern struct sys_timer omap_timer;
extern void omap_serial_init(int ports[]);

#endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */
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