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| author | Jo-Philipp Wich <jow@openwrt.org> | 2009-04-26 14:54:05 +0000 |
|---|---|---|
| committer | Jo-Philipp Wich <jow@openwrt.org> | 2009-04-26 14:54:05 +0000 |
| commit | 9125dddd569d676dfd5e3a5a728bf26006896b65 (patch) | |
| tree | 12ea5b99fc26ab1ad455f6206324b4144ced66ea /package/unvram/src/sdinitvals.h | |
| parent | 51837a4e11a3ee9f0b7749e6ffe2335cb2ff7d72 (diff) | |
| download | upstream-9125dddd569d676dfd5e3a5a728bf26006896b65.tar.gz upstream-9125dddd569d676dfd5e3a5a728bf26006896b65.tar.bz2 upstream-9125dddd569d676dfd5e3a5a728bf26006896b65.zip | |
[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
Diffstat (limited to 'package/unvram/src/sdinitvals.h')
| -rw-r--r-- | package/unvram/src/sdinitvals.h | 30 |
1 files changed, 30 insertions, 0 deletions
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_ */ |