From 02624a17896036c663fd5992c22919af8dad93ed Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 18 Feb 2010 17:58:19 +0900 Subject: ARM: mach-shmobile: ap4evb: Add tiny document Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/board-ap4evb.c | 42 +++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'arch/arm/mach-shmobile') diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index 4fd9ec8..41bc248 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -35,6 +35,48 @@ #include #include +/* + * Address Interface BusWidth note + * ------------------------------------------------------------------ + * 0x0000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = ON + * 0x0800_0000 user area - + * 0x1000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = OFF + * 0x1400_0000 Ether (LAN9220) 16bit + * 0x1600_0000 user area - cannot use with NAND + * 0x1800_0000 user area - + * 0x1A00_0000 - + * 0x4000_0000 LPDDR2-SDRAM (POP) 32bit + */ + +/* + * NOR Flash ROM + * + * SW1 | SW2 | SW7 | NOR Flash ROM + * bit1 | bit1 bit2 | bit1 | Memory allocation + * ------+------------+------+------------------ + * OFF | ON OFF | ON | Area 0 + * OFF | ON OFF | OFF | Area 4 + */ + +/* + * NAND Flash ROM + * + * SW1 | SW2 | SW7 | NAND Flash ROM + * bit1 | bit1 bit2 | bit2 | Memory allocation + * ------+------------+------+------------------ + * OFF | ON OFF | ON | FCE 0 + * OFF | ON OFF | OFF | FCE 1 + */ + +/* + * SMSC 9220 + * + * SW1 SMSC 9220 + * ----------------------- + * ON access disable + * OFF access enable + */ + /* MTD */ static struct mtd_partition nor_flash_partitions[] = { { -- cgit v1.1