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author | Anton Vorontsov <avorontsov@mvista.com> | 2010-03-25 17:12:41 +0300 |
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committer | Anton Vorontsov <avorontsov@mvista.com> | 2010-05-02 21:55:46 +0400 |
commit | d94f944e108da21badabd99f527b25e03b677b96 (patch) | |
tree | 3c150c38dcf4c6749eff881bacad872347ab3edd /arch/arm/mach-cns3xxx/include/mach/uncompress.h | |
parent | ea5ce655b90f5debb7b9768284eaafcca218ddef (diff) | |
download | op-kernel-dev-d94f944e108da21badabd99f527b25e03b677b96.zip op-kernel-dev-d94f944e108da21badabd99f527b25e03b677b96.tar.gz |
ARM: cns3xxx: Add basic support for Cavium Networks CNS3xxx processors
This patch adds very basic support for ECONA CNS3xxx ARM11 MPcore
(ARMv6) dual-core processors.
Note that SMP is not yet supported, as well as many peripheral
devices. Support for these features will be added later.
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Diffstat (limited to 'arch/arm/mach-cns3xxx/include/mach/uncompress.h')
-rw-r--r-- | arch/arm/mach-cns3xxx/include/mach/uncompress.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/mach-cns3xxx/include/mach/uncompress.h b/arch/arm/mach-cns3xxx/include/mach/uncompress.h new file mode 100644 index 0000000..de8ead9 --- /dev/null +++ b/arch/arm/mach-cns3xxx/include/mach/uncompress.h @@ -0,0 +1,55 @@ +/* + * Copyright 2003 ARM Limited + * Copyright 2008 Cavium Networks + * + * This file 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. + */ + +#include <asm/mach-types.h> +#include <mach/hardware.h> +#include <mach/cns3xxx.h> + +#define AMBA_UART_DR(base) (*(volatile unsigned char *)((base) + 0x00)) +#define AMBA_UART_LCRH(base) (*(volatile unsigned char *)((base) + 0x2c)) +#define AMBA_UART_CR(base) (*(volatile unsigned char *)((base) + 0x30)) +#define AMBA_UART_FR(base) (*(volatile unsigned char *)((base) + 0x18)) + +/* + * Return the UART base address + */ +static inline unsigned long get_uart_base(void) +{ + if (machine_is_cns3420vb()) + return CNS3XXX_UART0_BASE; + else + return 0; +} + +/* + * This does not append a newline + */ +static inline void putc(int c) +{ + unsigned long base = get_uart_base(); + + while (AMBA_UART_FR(base) & (1 << 5)) + barrier(); + + AMBA_UART_DR(base) = c; +} + +static inline void flush(void) +{ + unsigned long base = get_uart_base(); + + while (AMBA_UART_FR(base) & (1 << 3)) + barrier(); +} + +/* + * nothing to do + */ +#define arch_decomp_setup() +#define arch_decomp_wdog() |