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https://github.com/torvalds/linux
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d94f944e10
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>
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/*
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* Copyright 2003 ARM Limited
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* Copyright 2008 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*/
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <mach/cns3xxx.h>
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#define AMBA_UART_DR(base) (*(volatile unsigned char *)((base) + 0x00))
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#define AMBA_UART_LCRH(base) (*(volatile unsigned char *)((base) + 0x2c))
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#define AMBA_UART_CR(base) (*(volatile unsigned char *)((base) + 0x30))
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#define AMBA_UART_FR(base) (*(volatile unsigned char *)((base) + 0x18))
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/*
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* Return the UART base address
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*/
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static inline unsigned long get_uart_base(void)
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{
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if (machine_is_cns3420vb())
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return CNS3XXX_UART0_BASE;
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else
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return 0;
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}
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/*
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* This does not append a newline
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*/
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static inline void putc(int c)
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{
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unsigned long base = get_uart_base();
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while (AMBA_UART_FR(base) & (1 << 5))
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barrier();
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AMBA_UART_DR(base) = c;
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}
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static inline void flush(void)
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{
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unsigned long base = get_uart_base();
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while (AMBA_UART_FR(base) & (1 << 3))
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barrier();
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}
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/*
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* nothing to do
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*/
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#define arch_decomp_setup()
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#define arch_decomp_wdog()
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