drivers: hpet: use device_mmio
Straightforward example on how to use the TOPLEVEL variants
of the DEVICE_MMIO macros.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
diff --git a/drivers/timer/hpet.c b/drivers/timer/hpet.c
index 590c7f3..bee8366 100644
--- a/drivers/timer/hpet.c
+++ b/drivers/timer/hpet.c
@@ -12,8 +12,10 @@
#include <dt-bindings/interrupt-controller/intel-ioapic.h>
+DEVICE_MMIO_TOPLEVEL_STATIC(hpet_regs, 0);
+
#define HPET_REG32(off) (*(volatile uint32_t *)(long) \
- (DT_INST_REG_ADDR(0) + (off)))
+ (DEVICE_MMIO_TOPLEVEL_GET(hpet_regs) + (off)))
#define CLK_PERIOD_REG HPET_REG32(0x04) /* High dword of caps reg */
#define GENERAL_CONF_REG HPET_REG32(0x10)
@@ -119,6 +121,8 @@
extern int z_clock_hw_cycles_per_sec;
uint32_t hz;
+ DEVICE_MMIO_TOPLEVEL_MAP(hpet_regs, K_MEM_CACHE_NONE);
+
IRQ_CONNECT(DT_INST_IRQN(0),
DT_INST_IRQ(0, priority),
hpet_isr, 0, DT_INST_IRQ(0, sense));
