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Fix DMA on RPi 2.

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BCM2836 has a different base address for peripherals.

Obtained from:	netbsd
This commit is contained in:
Luiz Otavio O Souza 2015-05-05 00:19:04 +00:00
parent 53b89be196
commit 2ae580711a
1 changed files with 9 additions and 3 deletions
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12
sys/arm/broadcom/bcm2835/bcm2835_vcbus.h
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@ -37,14 +37,20 @@
#define BCM2835_VCBUS_IO_BASE 0x7E000000
#define BCM2835_VCBUS_SDRAM_UNCACHED 0xC0000000
#ifdef SOC_BCM2836
#define BCM2835_ARM_IO_BASE 0x3f000000
#define BCM2835_VCBUS_SDRAM_BASE BCM2835_VCBUS_SDRAM_UNCACHED
#else
#define BCM2835_ARM_IO_BASE 0x20000000
#define BCM2835_ARM_IO_SIZE 0x02000000
#define BCM2835_VCBUS_SDRAM_BASE BCM2835_VCBUS_SDRAM_CACHED
#endif
#define BCM2835_ARM_IO_SIZE 0x01000000
/*
* 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)
#define PHYS_TO_VCBUS(pa) ((pa) + BCM2835_VCBUS_SDRAM_BASE)
/* Check whether pa bellong top IO window */
#define BCM2835_ARM_IS_IO(pa) (((pa) >= BCM2835_ARM_IO_BASE) && \
@ -61,6 +67,6 @@
* when address is returned by VC over mailbox interface. e.g.
* framebuffer base
*/
#define VCBUS_TO_PHYS(vca) ((vca) - BCM2835_VCBUS_SDRAM_CACHED)
#define VCBUS_TO_PHYS(vca) ((vca) - BCM2835_VCBUS_SDRAM_BASE)
#endif /* _BCM2835_VCBUS_H_ */