Commit 2cd690ea authored by Vineet Gupta's avatar Vineet Gupta

ARC: timer: gfrc, rtc: deuglify big endian code

A standard "C" shift will be handled appropriately by the compiler
depending on the endian for the build. So we don't need the
explicit distinction in code
Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 6a8b2ca7
......@@ -86,26 +86,19 @@ static int noinline arc_get_timer_clk(struct device_node *node)
static cycle_t arc_read_gfrc(struct clocksource *cs)
{
unsigned long flags;
union {
#ifdef CONFIG_CPU_BIG_ENDIAN
struct { u32 h, l; };
#else
struct { u32 l, h; };
#endif
cycle_t full;
} stamp;
u32 l, h;
local_irq_save(flags);
__mcip_cmd(CMD_GFRC_READ_LO, 0);
stamp.l = read_aux_reg(ARC_REG_MCIP_READBACK);
l = read_aux_reg(ARC_REG_MCIP_READBACK);
__mcip_cmd(CMD_GFRC_READ_HI, 0);
stamp.h = read_aux_reg(ARC_REG_MCIP_READBACK);
h = read_aux_reg(ARC_REG_MCIP_READBACK);
local_irq_restore(flags);
return stamp.full;
return (((cycle_t)h) << 32) | l;
}
static struct clocksource arc_counter_gfrc = {
......@@ -143,14 +136,7 @@ CLOCKSOURCE_OF_DECLARE(arc_gfrc, "snps,archs-timer-gfrc", arc_cs_setup_gfrc);
static cycle_t arc_read_rtc(struct clocksource *cs)
{
unsigned long status;
union {
#ifdef CONFIG_CPU_BIG_ENDIAN
struct { u32 high, low; };
#else
struct { u32 low, high; };
#endif
cycle_t full;
} stamp;
u32 l, h;
/*
* hardware has an internal state machine which tracks readout of
......@@ -159,12 +145,12 @@ static cycle_t arc_read_rtc(struct clocksource *cs)
* - high increments after low has been read
*/
do {
stamp.low = read_aux_reg(AUX_RTC_LOW);
stamp.high = read_aux_reg(AUX_RTC_HIGH);
l = read_aux_reg(AUX_RTC_LOW);
h = read_aux_reg(AUX_RTC_HIGH);
status = read_aux_reg(AUX_RTC_CTRL);
} while (!(status & _BITUL(31)));
return stamp.full;
return (((cycle_t)h) << 32) | l;
}
static struct clocksource arc_counter_rtc = {
......
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