Davinci: pinmux - use ioremap()

This patch modifies the pinmux implementation so as to ioremap() the pinmux
register area on first use.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

arch/arm/mach-davinci/da830.c

@@ -1191,6 +1191,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
 	.cpu_clks		= da830_clks,
 	.psc_bases		= da830_psc_bases,
 	.psc_bases_num		= ARRAY_SIZE(da830_psc_bases),
+	.pinmux_base		= DA8XX_SYSCFG0_BASE + 0x120,
 	.pinmux_pins		= da830_pins,
 	.pinmux_pins_num	= ARRAY_SIZE(da830_pins),
 	.intc_base		= DA8XX_CP_INTC_BASE,
@@ -1213,7 +1214,5 @@ void __init da830_init(void)
 	if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
 		return;
 
-	davinci_soc_info_da830.pinmux_base = DA8XX_SYSCFG0_VIRT(0x120);
-
 	davinci_common_init(&davinci_soc_info_da830);
 }