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| author | Ryan Mallon <rmallon@gmail.com> | 2012-01-11 02:06:08 +0400 |
|---|---|---|
| committer | Ryan Mallon <rmallon@gmail.com> | 2012-03-14 04:41:02 +0400 |
| commit | 258249ec0eaea479eead856ee49e336415f4b1df (patch) | |
| tree | a5e8b16a308696e7d98fcdffa719887b4a08adc2 /arch/arm/mach-ep93xx/soc.h | |
| parent | fde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff) | |
| download | linux-258249ec0eaea479eead856ee49e336415f4b1df.tar.xz | |
ep93xx: Move PHYS_BASE defines to local SoC header file
The PHYS_BASE defines in arch/arm/mach-ep93xx/include/mach-ep93xx-regs.h are
only used in the SoC code. Move the defines to a local header file.
Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
Diffstat (limited to 'arch/arm/mach-ep93xx/soc.h')
| -rw-r--r-- | arch/arm/mach-ep93xx/soc.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/soc.h b/arch/arm/mach-ep93xx/soc.h new file mode 100644 index 000000000000..2f6641e57692 --- /dev/null +++ b/arch/arm/mach-ep93xx/soc.h @@ -0,0 +1,50 @@ +/* + * arch/arm/mach-ep93xx/soc.h + * + * Copyright (C) 2012 Open Kernel Labs <www.ok-labs.com> + * Copyright (C) 2012 Ryan Mallon <rmallon@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#ifndef _EP93XX_SOC_H +#define _EP93XX_SOC_H + +/* + * EP93xx Physical Memory Map: + * + * The ASDO pin is sampled at system reset to select a synchronous or + * asynchronous boot configuration. When ASDO is "1" (i.e. pulled-up) + * the synchronous boot mode is selected. When ASDO is "0" (i.e + * pulled-down) the asynchronous boot mode is selected. + * + * In synchronous boot mode nSDCE3 is decoded starting at physical address + * 0x00000000 and nCS0 is decoded starting at 0xf0000000. For asynchronous + * boot mode they are swapped with nCS0 decoded at 0x00000000 ann nSDCE3 + * decoded at 0xf0000000. + * + * There is known errata for the EP93xx dealing with External Memory + * Configurations. Please refer to "AN273: EP93xx Silicon Rev E Design + * Guidelines" for more information. This document can be found at: + * + * http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf + */ + +#define EP93XX_CS0_PHYS_BASE_ASYNC 0x00000000 /* ASDO Pin = 0 */ +#define EP93XX_SDCE3_PHYS_BASE_SYNC 0x00000000 /* ASDO Pin = 1 */ +#define EP93XX_CS1_PHYS_BASE 0x10000000 +#define EP93XX_CS2_PHYS_BASE 0x20000000 +#define EP93XX_CS3_PHYS_BASE 0x30000000 +#define EP93XX_PCMCIA_PHYS_BASE 0x40000000 +#define EP93XX_CS6_PHYS_BASE 0x60000000 +#define EP93XX_CS7_PHYS_BASE 0x70000000 +#define EP93XX_SDCE0_PHYS_BASE 0xc0000000 +#define EP93XX_SDCE1_PHYS_BASE 0xd0000000 +#define EP93XX_SDCE2_PHYS_BASE 0xe0000000 +#define EP93XX_SDCE3_PHYS_BASE_ASYNC 0xf0000000 /* ASDO Pin = 0 */ +#define EP93XX_CS0_PHYS_BASE_SYNC 0xf0000000 /* ASDO Pin = 1 */ + +#endif /* _EP93XX_SOC_H */ |