AVR32: Resource management rewrite
Rewrite the resource management code (i.e. I/O memory, clock gating,
gpio) so it doesn't depend on any global state. This is necessary
because this code is heavily used before relocation to RAM, so we
can't write to any global variables.
As an added bonus, this makes u-boot's memory footprint a bit smaller,
although some functionality has been left out; all clocks are enabled
all the time, and there's no checking for gpio line conflicts.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/cpu/at32ap/interrupts.c b/cpu/at32ap/interrupts.c
index d720cfa..85420a4 100644
--- a/cpu/at32ap/interrupts.c
+++ b/cpu/at32ap/interrupts.c
@@ -27,7 +27,7 @@
#include <asm/processor.h>
#include <asm/sysreg.h>
-#include <asm/arch/platform.h>
+#include <asm/arch/memory-map.h>
#define HANDLER_MASK 0x00ffffff
#define INTLEV_SHIFT 30
@@ -44,8 +44,6 @@
*/
static unsigned long tb_factor;
-static const struct device *intc_dev;
-
unsigned long get_tbclk(void)
{
return gd->cpu_hz;
@@ -126,7 +124,7 @@
intpr = (handler_addr & HANDLER_MASK);
intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT;
- writel(intpr, intc_dev->regs + 4 * nr);
+ writel(intpr, (void *)INTC_BASE + 4 * nr);
return 0;
}
@@ -143,10 +141,7 @@
do_div(tmp, gd->cpu_hz);
tb_factor = (u32)tmp;
- intc_dev = get_device(DEVICE_INTC);
-
- if (!intc_dev
- || set_interrupt_handler(0, &timer_interrupt_handler, 3))
+ if (set_interrupt_handler(0, &timer_interrupt_handler, 3))
return;
/* For all practical purposes, this gives us an overflow interrupt */