arm: pxa: Drop pxa_wait_ticks()

This function has a similar name to the common wait_ticks(). It is only
used in one place and seems small enough to drop.

Inline it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NTom Rini <trini@konsulko.com>

arch/arm/cpu/pxa/pxa2xx.c

@@ -39,13 +39,6 @@ int cleanup_before_linux(void)
 	return 0;
 }
 
-void pxa_wait_ticks(int ticks)
-{
-	writel(0, OSCR);
-	while (readl(OSCR) < ticks)
-		asm volatile("" : : : "memory");
-}
-
 inline void writelrb(uint32_t val, uint32_t addr)
 {
 	writel(val, addr);
@@ -136,8 +129,11 @@ void pxa2xx_dram_init(void)
 
 	writelrb(CONFIG_SYS_MDCNFG_VAL &
 		~(MDCNFG_DE0 | MDCNFG_DE1 | MDCNFG_DE2 | MDCNFG_DE3), MDCNFG);
+
 	/* Wait for the clock to the SDRAMs to stabilize, 100..200 usec. */
-	pxa_wait_ticks(0x300);
+	writel(0, OSCR);
+	while (readl(OSCR) < 0x300)
+		asm volatile("" : : : "memory");
 
 	/*
 	 * 8) Trigger a number (usually 8) refresh cycles by attempting