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drivers: hpet: use device_mmio

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Straightforward example on how to use the TOPLEVEL variants
of the DEVICE_MMIO macros.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-06-26 16:12:45 -07:00 committed by Carles Cufí
parent ee3c50ba6d
commit 7f7d05c262
1 changed files with 5 additions and 1 deletions
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6
drivers/timer/hpet.c
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@ -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 @@ int z_clock_driver_init(struct device *device)
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));