ARM: mach-imx: convert boot_params to atag_offset

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/mach-imx/mach-mx27ads.c b/arch/arm/mach-imx/mach-mx27ads.c
index fc26ed7..efe6109 100644
--- a/arch/arm/mach-imx/mach-mx27ads.c
+++ b/arch/arm/mach-imx/mach-mx27ads.c
@@ -345,7 +345,7 @@
 
 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
 	/* maintainer: Freescale Semiconductor, Inc. */
-	.boot_params = MX27_PHYS_OFFSET + 0x100,
+	.atag_offset = 0x100,
 	.map_io = mx27ads_map_io,
 	.init_early = imx27_init_early,
 	.init_irq = mx27_init_irq,