[U-Boot] [PATCH v2 2/3] sunxi: nand: Add board configuration options

[Piotr Zierhoffer]

From: Piotr Zierhoffer <piotr.zierhoffer at cs.put.poznan.pl>

When SPL_NAND_SUNXI option is selected in config, set some configuration
options for sunxi NAND.

This commit also introduces the configurable options in Kconfig.

Signed-off-by: Peter Gielda <pgielda at antmicro.com>
Signed-off-by: Tomasz Gorochowik <tgorochowik at antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko at antmicro.com>
Signed-off-by: Piotr Zierhoffer <pzierhoffer at antmicro.com>
Signed-off-by: Karol Gugala <kgugala at antmicro.com>
---

Changes in v2:
- removed traces of non-SPL specific code
- renamed defines to be more relevant
- moved Kconfig entry for the driver to drivers/mtd/nand
- reworded Kconfig entry help

 drivers/mtd/nand/Kconfig       |  7 +++++++
 include/configs/sunxi-common.h | 11 +++++++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 3024357..2f8dbaf 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -85,6 +85,13 @@ config SPL_NAND_DENALI
 	  This is a small implementation of the Denali NAND controller
 	  for use on SPL.
 
+config SPL_NAND_SUNXI
+	bool "Support for NAND on Allwinner A20 in SPL"
+	depends on MACH_SUN7I
+	---help---
+	Enable support for internal NAND. This option allows SPL to read from
+	sunxi NAND using DMA transfers. Writing is not supported.
+
 endif
 
 endmenu
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 9576bc1..c230cff 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -139,6 +139,17 @@
 #define CONFIG_INITRD_TAG
 #define CONFIG_SERIAL_TAG
 
+#if defined(CONFIG_SPL_NAND_SUNXI)
+#define CONFIG_SPL_NAND_DRIVERS
+#define CONFIG_SPL_NAND_SUPPORT
+
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x280000
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x008000
+
+#define CONFIG_SYS_NAND_PAGE_SIZE 0x000400 /* 1kb */
+#define CONFIG_SYS_NAND_BLOCK_SIZE 0x002000 /* 8kb*/
+#endif
+
 /* mmc config */
 #if !defined(CONFIG_UART0_PORT_F)
 #define CONFIG_MMC
-- 
2.3.6