Commit b3251b8f authored by Fu Wei's avatar Fu Wei Committed by Mark Rutland

clocksource: arm_arch_timer: add structs to describe MMIO timer

In preparation for ACPI GTDT support, this patch adds structs to
describe the MMIO timers indepedent of the firmware interface.

Subsequent patches will use these to split the FW/HW probing logic, so
that the HW probing logic can be shared by ACPI and DT.
Signed-off-by: default avatarFu Wei <fu.wei@linaro.org>
Reviewed-by: default avatarHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
parent ca0e1b52
...@@ -57,6 +57,8 @@ enum arch_timer_spi_nr { ...@@ -57,6 +57,8 @@ enum arch_timer_spi_nr {
#define ARCH_TIMER_MEM_PHYS_ACCESS 2 #define ARCH_TIMER_MEM_PHYS_ACCESS 2
#define ARCH_TIMER_MEM_VIRT_ACCESS 3 #define ARCH_TIMER_MEM_VIRT_ACCESS 3
#define ARCH_TIMER_MEM_MAX_FRAMES 8
#define ARCH_TIMER_USR_PCT_ACCESS_EN (1 << 0) /* physical counter */ #define ARCH_TIMER_USR_PCT_ACCESS_EN (1 << 0) /* physical counter */
#define ARCH_TIMER_USR_VCT_ACCESS_EN (1 << 1) /* virtual counter */ #define ARCH_TIMER_USR_VCT_ACCESS_EN (1 << 1) /* virtual counter */
#define ARCH_TIMER_VIRT_EVT_EN (1 << 2) #define ARCH_TIMER_VIRT_EVT_EN (1 << 2)
...@@ -72,6 +74,20 @@ struct arch_timer_kvm_info { ...@@ -72,6 +74,20 @@ struct arch_timer_kvm_info {
int virtual_irq; int virtual_irq;
}; };
struct arch_timer_mem_frame {
bool valid;
phys_addr_t cntbase;
size_t size;
int phys_irq;
int virt_irq;
};
struct arch_timer_mem {
phys_addr_t cntctlbase;
size_t size;
struct arch_timer_mem_frame frame[ARCH_TIMER_MEM_MAX_FRAMES];
};
#ifdef CONFIG_ARM_ARCH_TIMER #ifdef CONFIG_ARM_ARCH_TIMER
extern u32 arch_timer_get_rate(void); extern u32 arch_timer_get_rate(void);
......
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