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Merge remote-tracking branch 'armsoc/depends/rmk/for-armsoc' into at9…
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…1-3.4-base

Conflicts:
	arch/arm/mach-at91/at91cap9.c
	arch/arm/mach-at91/at91sam9g45.c
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Nicolas Ferre committed Feb 3, 2012
2 parents 62aa2b5 + dcf81c1 commit 57225b7
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Showing 138 changed files with 893 additions and 2,303 deletions.
156 changes: 78 additions & 78 deletions arch/arm/Kconfig.debug
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Original file line number Diff line number Diff line change
Expand Up @@ -81,25 +81,6 @@ choice
prompt "Kernel low-level debugging port"
depends on DEBUG_LL

config DEBUG_LL_UART_NONE
bool "No low-level debugging UART"
help
Say Y here if your platform doesn't provide a UART option
below. This relies on your platform choosing the right UART
definition internally in order for low-level debugging to
work.

config DEBUG_ICEDCC
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
help
Say Y here if you want the debug print routines to direct
their output to the EmbeddedICE macrocell's DCC channel using
co-processor 14. This is known to work on the ARM9 style ICE
channel and on the XScale with the PEEDI.

Note that the system will appear to hang during boot if there
is nothing connected to read from the DCC.

config AT91_DEBUG_LL_DBGU0
bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
depends on HAVE_AT91_DBGU0
Expand All @@ -108,20 +89,6 @@ choice
bool "Kernel low-level debugging on 9263, 9g45 and cap9"
depends on HAVE_AT91_DBGU1

config DEBUG_FOOTBRIDGE_COM1
bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
depends on FOOTBRIDGE
help
Say Y here if you want the debug print routines to direct
their output to the 8250 at PCI COM1.

config DEBUG_DC21285_PORT
bool "Kernel low-level debugging messages via footbridge serial port"
depends on FOOTBRIDGE
help
Say Y here if you want the debug print routines to direct
their output to the serial port in the DC21285 (Footbridge).

config DEBUG_CLPS711X_UART1
bool "Kernel low-level debugging messages via UART1"
depends on ARCH_CLPS711X
Expand All @@ -136,6 +103,20 @@ choice
Say Y here if you want the debug print routines to direct
their output to the second serial port on these devices.

config DEBUG_DC21285_PORT
bool "Kernel low-level debugging messages via footbridge serial port"
depends on FOOTBRIDGE
help
Say Y here if you want the debug print routines to direct
their output to the serial port in the DC21285 (Footbridge).

config DEBUG_FOOTBRIDGE_COM1
bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
depends on FOOTBRIDGE
help
Say Y here if you want the debug print routines to direct
their output to the 8250 at PCI COM1.

config DEBUG_HIGHBANK_UART
bool "Kernel low-level debugging messages via Highbank UART"
depends on ARCH_HIGHBANK
Expand Down Expand Up @@ -206,38 +187,42 @@ choice
Say Y here if you want kernel low-level debugging support
on i.MX6Q.

config DEBUG_S3C_UART0
depends on PLAT_SAMSUNG
bool "Use S3C UART 0 for low-level debug"
config DEBUG_MSM_UART1
bool "Kernel low-level debugging messages via MSM UART1"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
help
Say Y here if you want the debug print routines to direct
their output to UART 0. The port must have been initialised
by the boot-loader before use.

The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.
their output to the first serial port on MSM devices.

config DEBUG_S3C_UART1
depends on PLAT_SAMSUNG
bool "Use S3C UART 1 for low-level debug"
config DEBUG_MSM_UART2
bool "Kernel low-level debugging messages via MSM UART2"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
help
Say Y here if you want the debug print routines to direct
their output to UART 1. The port must have been initialised
by the boot-loader before use.
their output to the second serial port on MSM devices.

The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.
config DEBUG_MSM_UART3
bool "Kernel low-level debugging messages via MSM UART3"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
help
Say Y here if you want the debug print routines to direct
their output to the third serial port on MSM devices.

config DEBUG_S3C_UART2
depends on PLAT_SAMSUNG
bool "Use S3C UART 2 for low-level debug"
config DEBUG_MSM8660_UART
bool "Kernel low-level debugging messages via MSM 8660 UART"
depends on ARCH_MSM8X60
select MSM_HAS_DEBUG_UART_HS
help
Say Y here if you want the debug print routines to direct
their output to UART 2. The port must have been initialised
by the boot-loader before use.
their output to the serial port on MSM 8660 devices.

The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.
config DEBUG_MSM8960_UART
bool "Kernel low-level debugging messages via MSM 8960 UART"
depends on ARCH_MSM8960
select MSM_HAS_DEBUG_UART_HS
help
Say Y here if you want the debug print routines to direct
their output to the serial port on MSM 8960 devices.

config DEBUG_REALVIEW_STD_PORT
bool "RealView Default UART"
Expand All @@ -255,42 +240,57 @@ choice
their output to the standard serial port on the RealView
PB1176 platform.

config DEBUG_MSM_UART1
bool "Kernel low-level debugging messages via MSM UART1"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
config DEBUG_S3C_UART0
depends on PLAT_SAMSUNG
bool "Use S3C UART 0 for low-level debug"
help
Say Y here if you want the debug print routines to direct
their output to the first serial port on MSM devices.
their output to UART 0. The port must have been initialised
by the boot-loader before use.

config DEBUG_MSM_UART2
bool "Kernel low-level debugging messages via MSM UART2"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.

config DEBUG_S3C_UART1
depends on PLAT_SAMSUNG
bool "Use S3C UART 1 for low-level debug"
help
Say Y here if you want the debug print routines to direct
their output to the second serial port on MSM devices.
their output to UART 1. The port must have been initialised
by the boot-loader before use.

config DEBUG_MSM_UART3
bool "Kernel low-level debugging messages via MSM UART3"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.

config DEBUG_S3C_UART2
depends on PLAT_SAMSUNG
bool "Use S3C UART 2 for low-level debug"
help
Say Y here if you want the debug print routines to direct
their output to the third serial port on MSM devices.
their output to UART 2. The port must have been initialised
by the boot-loader before use.

config DEBUG_MSM8660_UART
bool "Kernel low-level debugging messages via MSM 8660 UART"
depends on ARCH_MSM8X60
select MSM_HAS_DEBUG_UART_HS
The uncompressor code port configuration is now handled
by CONFIG_S3C_LOWLEVEL_UART_PORT.

config DEBUG_LL_UART_NONE
bool "No low-level debugging UART"
help
Say Y here if you want the debug print routines to direct
their output to the serial port on MSM 8660 devices.
Say Y here if your platform doesn't provide a UART option
below. This relies on your platform choosing the right UART
definition internally in order for low-level debugging to
work.

config DEBUG_MSM8960_UART
bool "Kernel low-level debugging messages via MSM 8960 UART"
depends on ARCH_MSM8960
select MSM_HAS_DEBUG_UART_HS
config DEBUG_ICEDCC
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
help
Say Y here if you want the debug print routines to direct
their output to the serial port on MSM 8960 devices.
their output to the EmbeddedICE macrocell's DCC channel using
co-processor 14. This is known to work on the ARM9 style ICE
channel and on the XScale with the PEEDI.

Note that the system will appear to hang during boot if there
is nothing connected to read from the DCC.

endchoice

Expand Down
1 change: 1 addition & 0 deletions arch/arm/include/asm/system.h
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Original file line number Diff line number Diff line change
Expand Up @@ -110,6 +110,7 @@ extern void cpu_init(void);

void soft_restart(unsigned long);
extern void (*arm_pm_restart)(char str, const char *cmd);
extern void (*arm_pm_idle)(void);

#define UDBG_UNDEFINED (1 << 0)
#define UDBG_SYSCALL (1 << 1)
Expand Down
27 changes: 16 additions & 11 deletions arch/arm/kernel/process.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -61,8 +61,6 @@ extern void setup_mm_for_reboot(void);

static volatile int hlt_counter;

#include <mach/system.h>

void disable_hlt(void)
{
hlt_counter++;
Expand Down Expand Up @@ -181,13 +179,17 @@ void cpu_idle_wait(void)
EXPORT_SYMBOL_GPL(cpu_idle_wait);

/*
* This is our default idle handler. We need to disable
* interrupts here to ensure we don't miss a wakeup call.
* This is our default idle handler.
*/

void (*arm_pm_idle)(void);

static void default_idle(void)
{
if (!need_resched())
arch_idle();
if (arm_pm_idle)
arm_pm_idle();
else
cpu_do_idle();
local_irq_enable();
}

Expand Down Expand Up @@ -215,26 +217,29 @@ void cpu_idle(void)
cpu_die();
#endif

/*
* We need to disable interrupts here
* to ensure we don't miss a wakeup call.
*/
local_irq_disable();
#ifdef CONFIG_PL310_ERRATA_769419
wmb();
#endif
if (hlt_counter) {
local_irq_enable();
cpu_relax();
} else {
} else if (!need_resched()) {
stop_critical_timings();
if (cpuidle_idle_call())
pm_idle();
start_critical_timings();
/*
* This will eventually be removed - pm_idle
* functions should always return with IRQs
* enabled.
* pm_idle functions must always
* return with IRQs enabled.
*/
WARN_ON(irqs_disabled());
} else
local_irq_enable();
}
}
leds_event(led_idle_end);
rcu_idle_exit();
Expand Down
8 changes: 8 additions & 0 deletions arch/arm/mach-at91/at91cap9.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@

#include <linux/module.h>

#include <asm/proc-fns.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
Expand Down Expand Up @@ -313,6 +314,12 @@ static struct at91_gpio_bank at91cap9_gpio[] __initdata = {
}
};

static void at91cap9_idle(void)
{
at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
cpu_do_idle();
}

/* --------------------------------------------------------------------
* AT91CAP9 processor initialization
* -------------------------------------------------------------------- */
Expand All @@ -332,6 +339,7 @@ static void __init at91cap9_ioremap_registers(void)

static void __init at91cap9_initialize(void)
{
arm_pm_idle = at91cap9_idle;
arm_pm_restart = at91sam9g45_restart;
at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);

Expand Down
10 changes: 10 additions & 0 deletions arch/arm/mach-at91/at91rm9200.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -289,6 +289,15 @@ static struct at91_gpio_bank at91rm9200_gpio[] __initdata = {
}
};

static void at91rm9200_idle(void)
{
/*
* Disable the processor clock. The processor will be automatically
* re-enabled by an interrupt or by a reset.
*/
at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
}

static void at91rm9200_restart(char mode, const char *cmd)
{
/*
Expand All @@ -314,6 +323,7 @@ static void __init at91rm9200_ioremap_registers(void)

static void __init at91rm9200_initialize(void)
{
arm_pm_idle = at91rm9200_idle;
arm_pm_restart = at91rm9200_restart;
at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1)
| (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3)
Expand Down
8 changes: 8 additions & 0 deletions arch/arm/mach-at91/at91sam9260.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@

#include <linux/module.h>

#include <asm/proc-fns.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
Expand Down Expand Up @@ -328,8 +329,15 @@ static void __init at91sam9260_ioremap_registers(void)
at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
}

static void at91sam9260_idle(void)
{
at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
cpu_do_idle();
}

static void __init at91sam9260_initialize(void)
{
arm_pm_idle = at91sam9260_idle;
arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
| (1 << AT91SAM9260_ID_IRQ2);
Expand Down
8 changes: 8 additions & 0 deletions arch/arm/mach-at91/at91sam9261.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@

#include <linux/module.h>

#include <asm/proc-fns.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
Expand Down Expand Up @@ -286,8 +287,15 @@ static void __init at91sam9261_ioremap_registers(void)
at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC);
}

static void at91sam9261_idle(void)
{
at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
cpu_do_idle();
}

static void __init at91sam9261_initialize(void)
{
arm_pm_idle = at91sam9261_idle;
arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1)
| (1 << AT91SAM9261_ID_IRQ2);
Expand Down
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