Commit 80192735 authored by Catalin Marinas's avatar Catalin Marinas
Browse files

RealView: Move the timer definitions into the EB specific files 



This patch moves the timer definitions from platform.h into board-eb.h
as they are different on PB11MPCore and PB1176. It also adds
timerX_va_base variables in core.c which are set by the
realview_eb_timer_init function before invoking realview_timer_init.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent a44ddfd5

arch/arm/mach-realview/core.c

+19 −19
Original line number Diff line number Diff line
@@ -444,10 +444,10 @@ void realview_leds_event(led_event_t ledevt) 
/*

 * Where is the timer (VA)?

 */

#define TIMER0_VA_BASE		 __io_address(REALVIEW_TIMER0_1_BASE)

#define TIMER1_VA_BASE		(__io_address(REALVIEW_TIMER0_1_BASE) + 0x20)

#define TIMER2_VA_BASE		 __io_address(REALVIEW_TIMER2_3_BASE)

#define TIMER3_VA_BASE		(__io_address(REALVIEW_TIMER2_3_BASE) + 0x20)

void __iomem *timer0_va_base;

void __iomem *timer1_va_base;

void __iomem *timer2_va_base;

void __iomem *timer3_va_base;



/*

 * How long is the timer interval?
@@ -474,7 +474,7 @@ static void timer_set_mode(enum clock_event_mode mode, 


	switch(mode) {

	case CLOCK_EVT_MODE_PERIODIC:

		writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD);

		writel(TIMER_RELOAD, timer0_va_base + TIMER_LOAD);



		ctrl = TIMER_CTRL_PERIODIC;

		ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE | TIMER_CTRL_ENABLE;
@@ -490,16 +490,16 @@ static void timer_set_mode(enum clock_event_mode mode, 
		ctrl = 0;

	}



	writel(ctrl, TIMER0_VA_BASE + TIMER_CTRL);

	writel(ctrl, timer0_va_base + TIMER_CTRL);

}



static int timer_set_next_event(unsigned long evt,

				struct clock_event_device *unused)

{

	unsigned long ctrl = readl(TIMER0_VA_BASE + TIMER_CTRL);

	unsigned long ctrl = readl(timer0_va_base + TIMER_CTRL);



	writel(evt, TIMER0_VA_BASE + TIMER_LOAD);

	writel(ctrl | TIMER_CTRL_ENABLE, TIMER0_VA_BASE + TIMER_CTRL);

	writel(evt, timer0_va_base + TIMER_LOAD);

	writel(ctrl | TIMER_CTRL_ENABLE, timer0_va_base + TIMER_CTRL);



	return 0;

}
@@ -535,7 +535,7 @@ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id) 
	struct clock_event_device *evt = &timer0_clockevent;



	/* clear the interrupt */

	writel(1, TIMER0_VA_BASE + TIMER_INTCLR);

	writel(1, timer0_va_base + TIMER_INTCLR);



	evt->event_handler(evt);
@@ -550,7 +550,7 @@ static struct irqaction realview_timer_irq = { 


static cycle_t realview_get_cycles(void)

{

	return ~readl(TIMER3_VA_BASE + TIMER_VALUE);

	return ~readl(timer3_va_base + TIMER_VALUE);

}



static struct clocksource clocksource_realview = {
@@ -565,11 +565,11 @@ static struct clocksource clocksource_realview = { 
static void __init realview_clocksource_init(void)

{

	/* setup timer 0 as free-running clocksource */

	writel(0, TIMER3_VA_BASE + TIMER_CTRL);

	writel(0xffffffff, TIMER3_VA_BASE + TIMER_LOAD);

	writel(0xffffffff, TIMER3_VA_BASE + TIMER_VALUE);

	writel(0, timer3_va_base + TIMER_CTRL);

	writel(0xffffffff, timer3_va_base + TIMER_LOAD);

	writel(0xffffffff, timer3_va_base + TIMER_VALUE);

	writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,

		TIMER3_VA_BASE + TIMER_CTRL);

		timer3_va_base + TIMER_CTRL);



	clocksource_realview.mult =

		clocksource_khz2mult(1000, clocksource_realview.shift);
@@ -606,10 +606,10 @@ void __init realview_timer_init(unsigned int timer_irq) 
	/*

	 * Initialise to a known state (all timers off)

	 */

	writel(0, TIMER0_VA_BASE + TIMER_CTRL);

	writel(0, TIMER1_VA_BASE + TIMER_CTRL);

	writel(0, TIMER2_VA_BASE + TIMER_CTRL);

	writel(0, TIMER3_VA_BASE + TIMER_CTRL);

	writel(0, timer0_va_base + TIMER_CTRL);

	writel(0, timer1_va_base + TIMER_CTRL);

	writel(0, timer2_va_base + TIMER_CTRL);

	writel(0, timer3_va_base + TIMER_CTRL);



	/* 

	 * Make irqs happen for the system timer

arch/arm/mach-realview/core.h

+4 −0
Original line number Diff line number Diff line
@@ -55,6 +55,10 @@ extern void __iomem *gic_cpu_base_addr; 
extern void __iomem *twd_base_addr;

extern unsigned int twd_size;

#endif

extern void __iomem *timer0_va_base;

extern void __iomem *timer1_va_base;

extern void __iomem *timer2_va_base;

extern void __iomem *timer3_va_base;



extern void realview_leds_event(led_event_t ledevt);

extern void realview_timer_init(unsigned int timer_irq);

arch/arm/mach-realview/realview_eb.c

+9 −4
Original line number Diff line number Diff line
@@ -66,13 +66,13 @@ static struct map_desc realview_eb_io_desc[] __initdata = { 
		.length		= SZ_4K,

		.type		= MT_DEVICE,

	}, {

		.virtual	= IO_ADDRESS(REALVIEW_TIMER0_1_BASE),

		.pfn		= __phys_to_pfn(REALVIEW_TIMER0_1_BASE),

		.virtual	= IO_ADDRESS(REALVIEW_EB_TIMER0_1_BASE),

		.pfn		= __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE),

		.length		= SZ_4K,

		.type		= MT_DEVICE,

	}, {

		.virtual	= IO_ADDRESS(REALVIEW_TIMER2_3_BASE),

		.pfn		= __phys_to_pfn(REALVIEW_TIMER2_3_BASE),

		.virtual	= IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE),

		.pfn		= __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE),

		.length		= SZ_4K,

		.type		= MT_DEVICE,

	},
@@ -337,6 +337,11 @@ static void __init realview_eb_timer_init(void) 
{

	unsigned int timer_irq;



	timer0_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE);

	timer1_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE) + 0x20;

	timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE);

	timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20;



	if (core_tile_eb11mp()) {

#ifdef CONFIG_LOCAL_TIMERS

		twd_base_addr = __io_address(REALVIEW_EB11MP_TWD_BASE);

include/asm-arm/arch-realview/board-eb.h

+2 −0
Original line number Diff line number Diff line
@@ -26,6 +26,8 @@ 
/*

 * RealView EB + ARM11MPCore peripheral addresses

 */

#define REALVIEW_EB_TIMER0_1_BASE	0x10011000	/* Timer 0 and 1 */

#define REALVIEW_EB_TIMER2_3_BASE	0x10012000	/* Timer 2 and 3 */

#define REALVIEW_EB_GIC_CPU_BASE	0x10040000	/* Generic interrupt controller CPU interface */

#define REALVIEW_EB_GIC_DIST_BASE	0x10041000	/* Generic interrupt controller distributor */

include/asm-arm/arch-realview/platform.h

+0 −2
Original line number Diff line number Diff line
@@ -190,8 +190,6 @@ 
#define REALVIEW_SCI_BASE             0x1000E000	/* Smart card controller */

	/* Reserved 0x1000F000 */

#define REALVIEW_WATCHDOG_BASE        0x10010000	/* watchdog interface */

#define REALVIEW_TIMER0_1_BASE        0x10011000	/* Timer 0 and 1 */

#define REALVIEW_TIMER2_3_BASE        0x10012000	/* Timer 2 and 3 */

#define REALVIEW_GPIO0_BASE           0x10013000	/* GPIO port 0 */

#define REALVIEW_GPIO1_BASE           0x10014000	/* GPIO port 1 */

#define REALVIEW_GPIO2_BASE           0x10015000	/* GPIO port 2 */

CRA Git | Maintained and supported by SUSTech CRA and CCSE