diff options
| author | Stephen Warren <swarren@wwwdotorg.org> | 2012-08-05 16:07:21 (GMT) |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-09-01 12:58:21 (GMT) |
| commit | efad6cf8818620b0d85405df2b810760b62acbb8 (patch) | |
| tree | 45fa8ee97e49c985752e31cc7dfe84db4f6cf18d /arch/arm/include/asm/arch-bcm2835/timer.h | |
| parent | 86c632651d317fbb9de92489b7a5febece3c4436 (diff) | |
| download | u-boot-efad6cf8818620b0d85405df2b810760b62acbb8.tar.xz | |
ARM: add basic support for the Broadcom BCM2835 SoC
This SoC is used in the Raspberry Pi, for example.
For more details, see:
http://www.broadcom.com/products/BCM2835
http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf.
Initial support is enough to boot to a serial console, execute a minimal
set of U-Boot commands, download data over a serial port, and boot a
Linux kernel. No storage or network drivers are implemented.
GPIO driver originally by Vikram Narayanan <vikram186@gmail.com>
with many fixes from myself.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Diffstat (limited to 'arch/arm/include/asm/arch-bcm2835/timer.h')
| -rw-r--r-- | arch/arm/include/asm/arch-bcm2835/timer.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-bcm2835/timer.h b/arch/arm/include/asm/arch-bcm2835/timer.h new file mode 100644 index 0000000..30c70e0 --- /dev/null +++ b/arch/arm/include/asm/arch-bcm2835/timer.h @@ -0,0 +1,37 @@ +/* + * (C) Copyright 2012 Stephen Warren + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _BCM2835_TIMER_H +#define _BCM2835_TIMER_H + +#define BCM2835_TIMER_PHYSADDR 0x20003000 + +struct bcm2835_timer_regs { + u32 cs; + u32 clo; + u32 chi; + u32 c0; + u32 c1; + u32 c2; + u32 c3; +}; + +#define BCM2835_TIMER_CS_M3 (1 << 3) +#define BCM2835_TIMER_CS_M2 (1 << 2) +#define BCM2835_TIMER_CS_M1 (1 << 1) +#define BCM2835_TIMER_CS_M0 (1 << 0) + +#endif |