[PATCH linux dev-4.7] arm: aspped: romulus: Set PNOR SPI address mapping

[Lei YU]

The PNOR SPI address mapping is the same as Witherspoon.

Signed-off-by: Lei YU <mine260309 at gmail.com>
---
 arch/arm/mach-aspeed/aspeed.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/mach-aspeed/aspeed.c b/arch/arm/mach-aspeed/aspeed.c
index 726b8fa..ec9eecf 100644
--- a/arch/arm/mach-aspeed/aspeed.c
+++ b/arch/arm/mach-aspeed/aspeed.c
@@ -221,6 +221,24 @@ static void __init do_witherspoon_setup(void)
 static void __init do_romulus_setup(void)
 {
 	do_common_setup();
+
+	/* Setup PNOR address mapping for 64M flash
+	 *
+	 *   ADRBASE: 0x3000 (0x30000000)
+	 *   HWMBASE: 0x0C00 (0x0C000000)
+	 *  ADDRMASK: 0xFC00 (0xFC000000)
+	 *   HWNCARE: 0x03FF (0x03FF0000)
+	 *
+	 * Mapping appears at 0x60300fc000000 on the host
+	 */
+	writel(0x30000C00, AST_IO(AST_BASE_LPC | 0x88));
+	writel(0xFC0003FF, AST_IO(AST_BASE_LPC | 0x8C));
+
+	/* Set SPI1 CE1 decoding window to 0x34000000 */
+	writel(0x70680000, AST_IO(AST_BASE_SPI | 0x34));
+
+	/* Set SPI1 CE0 decoding window to 0x30000000 */
+	writel(0x68600000, AST_IO(AST_BASE_SPI | 0x30));
 }
 
 #define SCU_PASSWORD	0x1688A8A8
-- 
1.9.1