hello!
this is a trivial patch which enables the experimental power management on
au1x00. while it does not add anything substantial it makes it working again
by resolving some naming issues - resulting in about 50% less power
consumption on my machine.
regards,
bruno
--- linux-mips-2_4-cvs-clean/arch/mips/au1000/common/power.c Wed Dec 11 07:12:29 2002
+++ linux-mips-2_4/arch/mips/au1000/common/power.c Fri Feb 14 12:17:53 2003
@@ -52,10 +52,10 @@
extern void au1k_wait(void);
static void calibrate_delay(void);
-extern void set_au1000_speed(unsigned int new_freq);
-extern unsigned int get_au1000_speed(void);
-extern unsigned long get_au1000_uart_baud_base(void);
-extern void set_au1000_uart_baud_base(unsigned long new_baud_base);
+extern void set_au1x00_speed(unsigned int new_freq);
+extern unsigned int get_au1x00_speed(void);
+extern unsigned long get_au1x00_uart_baud_base(void);
+extern void set_au1x00_uart_baud_base(unsigned long new_baud_base);
extern unsigned long save_local_and_disable(int controller);
extern void restore_local_and_enable(int controller, unsigned long mask);
extern void local_enable_irq(unsigned int irq_nr);
@@ -188,13 +188,13 @@
return -EFAULT;
}
- old_baud_base = get_au1000_uart_baud_base();
- old_cpu_freq = get_au1000_speed();
-
+ old_baud_base = get_au1x00_uart_baud_base();
+ old_cpu_freq = get_au1x00_speed();
+
new_cpu_freq = pll * 12 * 1000000;
- new_baud_base = (new_cpu_freq / 4) / 16;
- set_au1000_speed(new_cpu_freq);
- set_au1000_uart_baud_base(new_baud_base);
+ new_baud_base = (new_cpu_freq / 4) / 16;
+ set_au1x00_speed(new_cpu_freq);
+ set_au1x00_uart_baud_base(new_baud_base);
old_refresh = au_readl(MEM_SDREFCFG) & 0x1ffffff;
new_refresh =
@@ -325,9 +325,11 @@
}
}
+/*
void au1k_wait(void)
{
__asm__("nop\n\t" "nop\n\t");
}
+*/
#endif /* CONFIG_PM */
--- linux-mips-2_4-cvs-clean/arch/mips/config-shared.in Fri Feb 14 12:12:25 2003
+++ linux-mips-2_4/arch/mips/config-shared.in Fri Feb 14 12:46:14 2003
@@ -823,7 +823,9 @@
tristate 'Kernel support for MISC binaries' CONFIG_BINFMT_MISC
-dep_bool 'Power Management support (EXPERIMENTAL)' CONFIG_PM $CONFIG_EXPERIMENTAL $CONFIG_MIPS_AU1000
+if [ "$CONFIG_CPU_AU1X00" = "y" ] ; then
+ dep_bool 'Power Management support (EXPERIMENTAL)' CONFIG_PM $CONFIG_EXPERIMENTAL
+fi
endmenu
source drivers/mtd/Config.in
