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Commit feb47225 authored by Greg Ungerer's avatar Greg Ungerer Committed by Russell King
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[ARM] 4428/1: modify at91 includes to handle non-MMU at91x40 family 



Modify the common at91 hardware support to deal with the non-MMU
at91x40 family. The base RAM (which is most likely not DRAM) is
set to the configured value. Virtual IO device mapping is set
to be 1 to 1 with the physical addresses.

Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
Acked-by: default avatarAndrew Victor <andrew@sanpeople.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 70672224

include/asm-arm/arch-at91/hardware.h

+16 −1
Original line number Diff line number Diff line
@@ -26,18 +26,29 @@ 
#include <asm/arch/at91sam9263.h>

#elif defined(CONFIG_ARCH_AT91SAM9RL)

#include <asm/arch/at91sam9rl.h>

#elif defined(CONFIG_ARCH_AT91X40)

#include <asm/arch/at91x40.h>

#else

#error "Unsupported AT91 processor"

#endif





#ifdef CONFIG_MMU

/*

 * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF

 * to 0xFEF78000 .. 0xFF000000.  (544Kb)

 */

#define AT91_IO_PHYS_BASE	0xFFF78000

#define AT91_IO_SIZE		(0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)

#define AT91_IO_VIRT_BASE	(0xFF000000 - AT91_IO_SIZE)

#else

/*

 * Identity mapping for the non MMU case.

 */

#define AT91_IO_PHYS_BASE	AT91_BASE_SYS

#define AT91_IO_VIRT_BASE	AT91_IO_PHYS_BASE

#endif



#define AT91_IO_SIZE		(0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)



 /* Convert a physical IO address to virtual IO address */

#define AT91_IO_P2V(x)		((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE)
@@ -66,7 +77,11 @@ 
#define AT91_CHIPSELECT_7	0x80000000



/* SDRAM */

#ifdef CONFIG_DRAM_BASE

#define AT91_SDRAM_BASE		CONFIG_DRAM_BASE

#else

#define AT91_SDRAM_BASE		AT91_CHIPSELECT_1

#endif



/* Clocks */

#define AT91_SLOW_CLOCK		32768		/* slow clock */