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80130204b4
Detect CPU type at runtime and setup uarts accordingly; also clean up the uart base address mess in the process as far as possible. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Cc: Florian Fainelli <florian@openwrt.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Patchwork: https://patchwork.linux-mips.org/patch/2352/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
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* Copyright 2010 Wolfgang Grandegger <wg@denx.de>
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*
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* Copyright 2003, 2008 MontaVista Software Inc.
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* Author: MontaVista Software, Inc. <source@mvista.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <asm/bootinfo.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <prom.h>
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const char *get_system_type(void)
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{
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return "GPR";
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}
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void __init prom_init(void)
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{
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unsigned char *memsize_str;
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unsigned long memsize;
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prom_argc = fw_arg0;
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prom_argv = (char **)fw_arg1;
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prom_envp = (char **)fw_arg2;
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prom_init_cmdline();
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memsize_str = prom_getenv("memsize");
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if (!memsize_str)
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memsize = 0x04000000;
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else
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strict_strtoul(memsize_str, 0, &memsize);
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add_memory_region(0, memsize, BOOT_MEM_RAM);
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}
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void prom_putchar(unsigned char c)
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{
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alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
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}
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