Date: Sat, 23 Feb 2013 22:46:27 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r247204 - head/sys/arm/broadcom/bcm2835 Message-ID: <201302232246.r1NMkRHX081969@svn.freebsd.org>
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Author: gonzo Date: Sat Feb 23 22:46:26 2013 New Revision: 247204 URL: http://svnweb.freebsd.org/changeset/base/247204 Log: Add macroses to properly map IO peripherals memory window from ARM physical memory address space to VideoCore address space Modified: head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h Modified: head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h ============================================================================== --- head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h Sat Feb 23 22:00:59 2013 (r247203) +++ head/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h Sat Feb 23 22:46:26 2013 (r247204) @@ -34,14 +34,28 @@ #define _BCM2835_VCBUS_H_ #define BCM2835_VCBUS_SDRAM_CACHED 0x40000000 +#define BCM2835_VCBUS_IO_BASE 0x7E000000 #define BCM2835_VCBUS_SDRAM_UNCACHED 0xC0000000 +#define BCM2835_ARM_IO_BASE 0x20000000 +#define BCM2835_ARM_IO_SIZE 0x02000000 + /* * Convert physical address to VC bus address. Should be used * when submitting address over mailbox interface */ #define PHYS_TO_VCBUS(pa) ((pa) + BCM2835_VCBUS_SDRAM_CACHED) +/* Check whether pa bellong top IO window */ +#define BCM2835_ARM_IS_IO(pa) (((pa) >= BCM2835_ARM_IO_BASE) && \ + ((pa) < BCM2835_ARM_IO_BASE + BCM2835_ARM_IO_SIZE)) + +/* + * Convert physical address in IO space to VC bus address. + */ +#define IO_TO_VCBUS(pa) ((pa - BCM2835_ARM_IO_BASE) + \ + BCM2835_VCBUS_IO_BASE) + /* * Convert address from VC bus space to physical. Should be used * when address is returned by VC over mailbox interface. e.g.
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