From 9125dddd569d676dfd5e3a5a728bf26006896b65 Mon Sep 17 00:00:00 2001 From: Jo-Philipp Wich Date: Sun, 26 Apr 2009 14:54:05 +0000 Subject: [package] Add unvram, a nvram manipulation tool suitable for brcm-2.4 and bcm47xx platforms git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15426 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/unvram/src/sdinitvals.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 package/unvram/src/sdinitvals.h (limited to 'package/unvram/src/sdinitvals.h') diff --git a/package/unvram/src/sdinitvals.h b/package/unvram/src/sdinitvals.h new file mode 100644 index 0000000000..5a289adece --- /dev/null +++ b/package/unvram/src/sdinitvals.h @@ -0,0 +1,30 @@ +/* + * SDRAM init values + * + * Copyright 2007, Broadcom Corporation + * Copyright 2009, OpenWrt.org + * All Rights Reserved. + * + * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY + * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM + * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. + * + */ + +#ifndef _sdinitvals_h_ +#define _sdinitvals_h_ + +/* SDRAM refresh control (refresh) register bits */ +#define SDRAM_REF(p) (((p)&0xff) | SDRAM_REF_EN) /* Refresh period */ +#define SDRAM_REF_EN 0x8000 /* Writing 1 enables periodic refresh */ + +/* SDRAM Core default Init values (OCP ID 0x803) */ +#define MEM4MX16X2 0x419 /* 16 MB */ + +#define SDRAM_INIT MEM4MX16X2 +#define SDRAM_BURSTFULL 0x0000 /* Use full page bursts */ +#define SDRAM_CONFIG SDRAM_BURSTFULL +#define SDRAM_REFRESH SDRAM_REF(0x40) + +#endif /* _sdinitvals_h_ */ -- cgit v1.2.3