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Diffstat (limited to 'arch/mips/au1000/common/setup.c')
-rw-r--r--arch/mips/au1000/common/setup.c60
1 files changed, 28 insertions, 32 deletions
diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
index 0e86f7a6b4a..1ac6b06f42a 100644
--- a/arch/mips/au1000/common/setup.c
+++ b/arch/mips/au1000/common/setup.c
@@ -1,7 +1,6 @@
/*
- * Copyright 2000 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
+ * Copyright 2000, 2007-2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com
*
* Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc.
*
@@ -48,7 +47,7 @@ void __init plat_mem_setup(void)
{
struct cpu_spec *sp;
char *argptr;
- unsigned long prid, cpufreq, bclk = 1;
+ unsigned long prid, cpufreq, bclk;
set_cpuspec();
sp = cur_cpu_spec[0];
@@ -66,42 +65,39 @@ void __init plat_mem_setup(void)
cpufreq = (au_readl(SYS_CPUPLL) & 0x3F) * 12;
printk(KERN_INFO "(PRID %08lx) @ %ld MHz\n", prid, cpufreq);
- bclk = sp->cpu_bclk;
- if (bclk)
- {
+ if (sp->cpu_bclk) {
/* Enable BCLK switching */
- bclk = au_readl(0xB190003C);
- au_writel(bclk | 0x60, 0xB190003C);
- printk("BCLK switching enabled!\n");
+ bclk = au_readl(SYS_POWERCTRL);
+ au_writel(bclk | 0x60, SYS_POWERCTRL);
+ printk(KERN_INFO "BCLK switching enabled!\n");
}
- if (sp->cpu_od) {
- /* Various early Au1000 Errata corrected by this */
- set_c0_config(1<<19); /* Set Config[OD] */
- }
- else {
+ 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] */
- }
+ clear_c0_config(1 << 19); /* Clear Config[OD] */
argptr = prom_getcmdline();
#ifdef CONFIG_SERIAL_8250_CONSOLE
- if ((argptr = strstr(argptr, "console=")) == NULL) {
+ argptr = strstr(argptr, "console=");
+ if (argptr == NULL) {
argptr = prom_getcmdline();
strcat(argptr, " console=ttyS0,115200");
}
#endif
#ifdef CONFIG_FB_AU1100
- if ((argptr = strstr(argptr, "video=")) == NULL) {
- argptr = prom_getcmdline();
- /* default panel */
- /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
- }
+ 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");
@@ -129,7 +125,7 @@ void __init plat_mem_setup(void)
/* 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 */
+ /* Don't fixup 36-bit addresses */
if ((phys_addr >> 32) != 0)
return phys_addr;
@@ -145,17 +141,17 @@ phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
}
#endif
- /* All Au1x 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
+ /*
+ * 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 Au1x socket 0 phys attribute address is 0xF 4000 0000.
+ * 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.
+ * 0xF400 0000 is a PCMCIA pseudo address.
*/
- if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF)) {
+ if ((phys_addr >= 0xF4000000) && (phys_addr < 0xFFFFFFFF))
return (phys_t)(phys_addr << 4);
- }
/* default nop */
return phys_addr;