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Commit 54a1668c authored by Mike Frysinger's avatar Mike Frysinger Committed by Bryan Wu
Browse files

[Blackfin] arch: scrub dead alive/idle LED code 



if it does get re-added, it needs to be in the boards directory,
not common code ... or it needs a re-implementation

Signed-off-by: default avatarMike Frysinger <michael.frysinger@analog.com>
Signed-off-by: default avatarBryan Wu <bryan.wu@analog.com>
parent 3ca32c1d

arch/blackfin/Kconfig

+0 −69
Original line number Diff line number Diff line
@@ -463,40 +463,6 @@ config BOOT_LOAD 
	  memory region is used to capture NULL pointer references as well

	  as some core kernel functions.



comment "LED Status Indicators"

	depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)



config BFIN_ALIVE_LED

	bool "Enable Board Alive"

	depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)

	default n

	help

	  Blink the LEDs you select when the kernel is running.  Helps detect

	  a hung kernel.



config BFIN_ALIVE_LED_NUM

	int "LED"

	depends on BFIN_ALIVE_LED

	range 1 3 if BFIN533_STAMP

	default "3" if BFIN533_STAMP

	help

	  Select the LED (marked on the board) for you to blink.



config BFIN_IDLE_LED

	bool "Enable System Load/Idle LED"

	depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM)

	default n

	help

	  Blinks the LED you select when to determine kernel load.



config BFIN_IDLE_LED_NUM

	int "LED"

	depends on BFIN_IDLE_LED

	range 1 3 if BFIN533_STAMP

	default "2" if BFIN533_STAMP

	help

	  Select the LED (marked on the board) for you to blink.



choice

	prompt "Blackfin Exception Scratch Register"

	default BFIN_SCRATCH_REG_RETN
@@ -543,41 +509,6 @@ config BFIN_SCRATCH_REG_CYCLES 


endchoice



#

# Sorry - but you need to put the hex address here -

#



# Flag Data register

config BFIN_ALIVE_LED_PORT

	hex

	default 0xFFC00700 if (BFIN533_STAMP)



# Peripheral Flag Direction Register

config BFIN_ALIVE_LED_DPORT

	hex

	default 0xFFC00730 if (BFIN533_STAMP)



config BFIN_ALIVE_LED_PIN

	hex

	default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1)

	default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2)

	default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3)



config BFIN_IDLE_LED_PORT

	hex

	default 0xFFC00700 if (BFIN533_STAMP)



# Peripheral Flag Direction Register

config BFIN_IDLE_LED_DPORT

	hex

	default 0xFFC00730 if (BFIN533_STAMP)



config BFIN_IDLE_LED_PIN

	hex

	default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1)

	default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2)

	default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3)



endmenu

arch/blackfin/kernel/process.c

+0 −31
Original line number Diff line number Diff line
@@ -39,9 +39,6 @@ 
#include <asm/blackfin.h>

#include <asm/fixed_code.h>



#define	LED_ON	0

#define	LED_OFF	1



asmlinkage void ret_from_fork(void);



/* Points to the SDRAM backup memory for the stack that is currently in
@@ -69,32 +66,6 @@ EXPORT_SYMBOL(pm_idle); 
void (*pm_power_off)(void) = NULL;

EXPORT_SYMBOL(pm_power_off);



/*

 * We are using a different LED from the one used to indicate timer interrupt.

 */

#if defined(CONFIG_BFIN_IDLE_LED)

static inline void leds_switch(int flag)

{

	unsigned short tmp = 0;



	tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT();

	SSYNC();



	if (flag == LED_ON)

		tmp &= ~CONFIG_BFIN_IDLE_LED_PIN;	/* light on */

	else

		tmp |= CONFIG_BFIN_IDLE_LED_PIN;	/* light off */



	bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp);

	SSYNC();



}

#else

static inline void leds_switch(int flag)

{

}

#endif



/*

 * The idle loop on BFIN

 */
@@ -106,12 +77,10 @@ void cpu_idle(void)__attribute__((l1_text)); 
void default_idle(void)

{

	while (!need_resched()) {

		leds_switch(LED_OFF);

		local_irq_disable();

		if (likely(!need_resched()))

			idle_with_irq_disabled();

		local_irq_enable();

		leds_switch(LED_ON);

	}

}

arch/blackfin/kernel/setup.c

+0 −2
Original line number Diff line number Diff line
@@ -315,8 +315,6 @@ void __init setup_arch(char **cmdline_p) 
	init_mm.end_data = (unsigned long)_edata;

	init_mm.brk = (unsigned long)0;



	init_leds();



	_bfin_swrst = bfin_read_SWRST();



	if (_bfin_swrst & RESET_DOUBLE)

arch/blackfin/kernel/time.c

+0 −70
Original line number Diff line number Diff line
@@ -42,75 +42,6 @@ 
static void time_sched_init(irqreturn_t(*timer_routine)

			(int, void *));

static unsigned long gettimeoffset(void);

static inline void do_leds(void);



#if (defined(CONFIG_BFIN_ALIVE_LED) || defined(CONFIG_BFIN_IDLE_LED))

void __init init_leds(void)

{

	unsigned int tmp = 0;



#if defined(CONFIG_BFIN_ALIVE_LED)

	/* config pins as output. */

	tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_DPORT();

	SSYNC();

	bfin_write_CONFIG_BFIN_ALIVE_LED_DPORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN);

	SSYNC();



	/*      First set led be off */

	tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT();

	SSYNC();

	bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN);	/* light off */

	SSYNC();

#endif



#if defined(CONFIG_BFIN_IDLE_LED)

	/* config pins as output. */

	tmp = bfin_read_CONFIG_BFIN_IDLE_LED_DPORT();

	SSYNC();

	bfin_write_CONFIG_BFIN_IDLE_LED_DPORT(tmp | CONFIG_BFIN_IDLE_LED_PIN);

	SSYNC();



	/*      First set led be off */

	tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT();

	SSYNC();

	bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp | CONFIG_BFIN_IDLE_LED_PIN);	/* light off */

	SSYNC();

#endif

}

#else

void __init init_leds(void)

{

}

#endif



#if defined(CONFIG_BFIN_ALIVE_LED)

static inline void do_leds(void)

{

	static unsigned int count = 50;

	static int flag;

	unsigned short tmp = 0;



	if (--count == 0) {

		count = 50;

		flag = ~flag;

	}

	tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT();

	SSYNC();



	if (flag)

		tmp &= ~CONFIG_BFIN_ALIVE_LED_PIN;	/* light on */

	else

		tmp |= CONFIG_BFIN_ALIVE_LED_PIN;	/* light off */



	bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp);

	SSYNC();



}

#else

static inline void do_leds(void)

{

}

#endif



static struct irqaction bfin_timer_irq = {

	.name = "BFIN Timer Tick",
@@ -205,7 +136,6 @@ irqreturn_t timer_interrupt(int irq, void *dummy) 
	write_seqlock(&xtime_lock);



	do_timer(1);

	do_leds();



#ifndef CONFIG_SMP

	update_process_times(user_mode(get_irq_regs()));