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>
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 6f5ea2a..74d4e49 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -1076,6 +1076,7 @@
 	.cpu_clks		= da850_clks,
 	.psc_bases		= da850_psc_bases,
 	.psc_bases_num		= ARRAY_SIZE(da850_psc_bases),
+	.pinmux_base		= DA8XX_SYSCFG0_BASE + 0x120,
 	.pinmux_pins		= da850_pins,
 	.pinmux_pins_num	= ARRAY_SIZE(da850_pins),
 	.intc_base		= DA8XX_CP_INTC_BASE,
@@ -1106,8 +1107,6 @@
 	if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
 		return;
 
-	davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG0_VIRT(0x120);
-
 	davinci_common_init(&davinci_soc_info_da850);
 
 	/*