avr32: Move cpu_hz to arch_global_data

Move this field into arch_global_data and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/avr32/cpu/cpu.c

@@ -47,7 +47,7 @@ int cpu_init(void)
 {
 	extern void _evba(void);
 
-	gd->cpu_hz = CONFIG_SYS_OSC0_HZ;
+	gd->arch.cpu_hz = CONFIG_SYS_OSC0_HZ;
 
 	/* TODO: Move somewhere else, but needs to be run before we
 	 * increase the clock frequency. */
@@ -59,7 +59,7 @@ int cpu_init(void)
 	clk_init();
 
 	/* Update the CPU speed according to the PLL configuration */
-	gd->cpu_hz = get_cpu_clk_rate();
+	gd->arch.cpu_hz = get_cpu_clk_rate();
 
 	/* Set up the exception handler table and enable exceptions */
 	sysreg_write(EVBA, (unsigned long)&_evba);

arch/avr32/cpu/interrupts.c

@@ -46,7 +46,7 @@ static unsigned long tb_factor;
 
 unsigned long get_tbclk(void)
 {
-	return gd->cpu_hz;
+	return gd->arch.cpu_hz;
 }
 
 unsigned long long get_ticks(void)
@@ -115,8 +115,8 @@ int timer_init(void)
 	sysreg_write(COUNT, 0);
 
 	tmp = (u64)CONFIG_SYS_HZ << 32;
-	tmp += gd->cpu_hz / 2;
-	do_div(tmp, gd->cpu_hz);
+	tmp += gd->arch.cpu_hz / 2;
+	do_div(tmp, gd->arch.cpu_hz);
 	tb_factor = (u32)tmp;
 
 	if (set_interrupt_handler(0, &timer_interrupt_handler, 3))

arch/avr32/include/asm/global_data.h

@@ -25,6 +25,7 @@
 /* Architecture-specific global data */
 struct arch_global_data {
 	unsigned long stack_end;	/* highest stack address */
+	unsigned long cpu_hz;		/* cpu core clock frequency */
 };
 
 /*
@@ -46,7 +47,6 @@ typedef	struct	global_data {
 	unsigned long	reloc_off;	/* Relocation Offset */
 	unsigned long	env_addr;	/* Address of env struct */
 	unsigned long	env_valid;	/* Checksum of env valid? */
-	unsigned long	cpu_hz;		/* cpu core clock frequency */
 #if defined(CONFIG_LCD)
 	void		*fb_base;	/* framebuffer address */
 #endif

arch/avr32/lib/bootm.c

@@ -109,7 +109,7 @@ static struct tag *setup_clock_tags(struct tag *params)
 	params->hdr.size = tag_size(tag_clock);
 	params->u.clock.clock_id = ACLOCK_BOOTCPU;
 	params->u.clock.clock_flags = 0;
-	params->u.clock.clock_hz = gd->cpu_hz;
+	params->u.clock.clock_hz = gd->arch.cpu_hz;
 
 #ifdef CONFIG_AT32AP7000
 	/*