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linux/arch/mips/au1000/common/setup.c
Sergei Shtylyov c1dcb14ec2 [MIPS] Alchemy common code style cleanup 
Fix many errors and warnings given by checkpatch.pl:

- use of C99 // comments;

- missing space between the type and asterisk in a variable declaration;

- space between the asterisk and function/variable name;

- leading spaces instead of tabs;

- space after opening and before closing parentheses;

- initialization of a 'static' variable to 0;

- missing spaces around assignement/comparison operator;

- brace not on the same line with condition (or 'else') in the 'if'/'switch'
  statement;

- missing space between 'if'/'for'/'while' and opening parenthesis;

- use of assignement in 'if' statement's condition;

- printk() without KERN_* facility level;

- EXPORT_SYMBOL() not following its function immediately;

- unnecessary braces for single-statement block;

- adding new 'typedef' (where including <linux/types.h> will do);

- use of 'extern' in the .c file (where it can be avoided by including header);

- line over 80 characters.

In addition to these changes, also do the following:

- insert missing space after opening brace and/or before closing brace in the
  structure initializers;

- insert spaces between operator and its operands;

- put the function's result type and name/parameters on the same line;

- properly indent multi-line expressions;

- remove commented out code;

- remove useless initializers and code;

- remove needless parentheses;

- fix broken/excess indentation;

- add missing spaces between operator and its operands;

- insert missing and remove excess new lines;

- group 'else' and 'if' together where possible;

- make au1xxx_platform_init() 'static';

- regroup variable declarations in pm_do_freq() for prettier look;

- replace numeric literals with the matching macros;

- fix printk() format specifiers mismatching the argument types;

- make the multi-line comment style consistent with the kernel style elsewhere
  by adding empty first line and/or adding space on their left side;

- make two-line comments that only have one line of text one-line;

- fix typos/errors, capitalize acronyms, etc. in the comments;

- fix/remove obsolete references in the comments;

- reformat some comments;

- add comment about the CPU:counter clock ratio to calc_clock();

- update MontaVista copyright;

- remove Pete Popov's and Steve Longerbeam's old email addresses...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-05-12 16:46:52 +01:00

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/*
* Copyright 2000, 2007-2008 MontaVista Software Inc.
* Author: MontaVista Software, Inc. <source@mvista.com
*
* Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/mipsregs.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <au1000.h>
#include <prom.h>
extern void __init board_setup(void);
extern void au1000_restart(char *);
extern void au1000_halt(void);
extern void au1000_power_off(void);
extern void set_cpuspec(void);
void __init plat_mem_setup(void)
{
struct cpu_spec *sp;
char *argptr;
unsigned long prid, cpufreq, bclk;
set_cpuspec();
sp = cur_cpu_spec[0];
board_setup(); /* board specific setup */
prid = read_c0_prid();
if (sp->cpu_pll_wo)
#ifdef CONFIG_SOC_AU1000_FREQUENCY
cpufreq = CONFIG_SOC_AU1000_FREQUENCY / 1000000;
#else
cpufreq = 396;
#endif
else
cpufreq = (au_readl(SYS_CPUPLL) & 0x3F) * 12;
printk(KERN_INFO "(PRID %08lx) @ %ld MHz\n", prid, cpufreq);
if (sp->cpu_bclk) {
/* Enable BCLK switching */
bclk = au_readl(SYS_POWERCTRL);
au_writel(bclk | 0x60, SYS_POWERCTRL);
printk(KERN_INFO "BCLK switching enabled!\n");
}
if (sp->cpu_od)
/* Various early Au1xx0 errata corrected by this */
set_c0_config(1 << 19); /* Set Config[OD] */
else
/* Clear to obtain best system bus performance */
clear_c0_config(1 << 19); /* Clear Config[OD] */
argptr = prom_getcmdline();
#ifdef CONFIG_SERIAL_8250_CONSOLE
argptr = strstr(argptr, "console=");
if (argptr == NULL) {
argptr = prom_getcmdline();
strcat(argptr, " console=ttyS0,115200");
}
#endif
#ifdef CONFIG_FB_AU1100
argptr = strstr(argptr, "video=");
if (argptr == NULL) {
argptr = prom_getcmdline();
/* default panel */
/*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
}
#endif
#if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000)
/* au1000 does not support vra, au1500 and au1100 do */
strcat(argptr, " au1000_audio=vra");
argptr = prom_getcmdline();
#endif
_machine_restart = au1000_restart;
_machine_halt = au1000_halt;
pm_power_off = au1000_power_off;
/* IO/MEM resources. */
set_io_port_base(0);
ioport_resource.start = IOPORT_RESOURCE_START;
ioport_resource.end = IOPORT_RESOURCE_END;
iomem_resource.start = IOMEM_RESOURCE_START;
iomem_resource.end = IOMEM_RESOURCE_END;
while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S);
au_writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL);
au_sync();
while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S);
au_writel(0, SYS_TOYTRIM);
}
#if defined(CONFIG_64BIT_PHYS_ADDR)
/* This routine should be valid for all Au1x based boards */
phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
{
/* Don't fixup 36-bit addresses */
if ((phys_addr >> 32) != 0)
return phys_addr;
#ifdef CONFIG_PCI
{
u32 start = (u32)Au1500_PCI_MEM_START;
u32 end = (u32)Au1500_PCI_MEM_END;
/* Check for PCI memory window */
if (phys_addr >= start && (phys_addr + size - 1) <= end)
return (phys_t)
((phys_addr - start) + Au1500_PCI_MEM_START);
}
#endif
/*
* All Au1xx0 SOCs have a PCMCIA controller.
* We setup our 32-bit pseudo addresses to be equal to the
* 36-bit addr >> 4, to make it easier to check the address
* and fix it.
* The PCMCIA socket 0 physical attribute address is 0xF 4000 0000.
* The pseudo address we use is 0xF400 0000. Any address over
* 0xF400 0000 is a PCMCIA pseudo address.
*/
if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF))
return (phys_t)(phys_addr << 4);
/* default nop */
return phys_addr;
}
EXPORT_SYMBOL(__fixup_bigphys_addr);
#endif
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