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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2006-09-03 22:17:10 +0400
committerRalf Baechle <ralf@linux-mips.org>2006-10-30 21:41:26 +0000
commit53c1b192ece077e1c3892e6afb453ab6f009af81 (patch)
tree559e2bb25c676098a1d063a1da3a513449a99695 /arch
parentbe609f3546d3dd96afd7df8856a91fa2b8825fbc (diff)
downloadblackbird-op-linux-53c1b192ece077e1c3892e6afb453ab6f009af81.tar.gz
blackbird-op-linux-53c1b192ece077e1c3892e6afb453ab6f009af81.zip
[MIPS] Au1xx0 code sets incorrect mips_hpt_frequency
Alchemy CPU counter ticks at the full CPU clock speed. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/au1000/common/time.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index 94f09194d63d..7313ef234d8c 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -231,7 +231,6 @@ wakeup_counter0_set(int ticks)
*/
unsigned long cal_r4koff(void)
{
- unsigned long count;
unsigned long cpu_speed;
unsigned long flags;
unsigned long counter;
@@ -258,7 +257,7 @@ unsigned long cal_r4koff(void)
#if defined(CONFIG_AU1000_USE32K)
{
- unsigned long start, end;
+ unsigned long start, end, count;
start = au_readl(SYS_RTCREAD);
start += 2;
@@ -282,7 +281,6 @@ unsigned long cal_r4koff(void)
#else
cpu_speed = (au_readl(SYS_CPUPLL) & 0x0000003f) *
AU1000_SRC_CLK;
- count = cpu_speed / 2;
#endif
}
else {
@@ -291,10 +289,9 @@ unsigned long cal_r4koff(void)
* NOTE: some old silicon doesn't allow reading the PLL.
*/
cpu_speed = (au_readl(SYS_CPUPLL) & 0x0000003f) * AU1000_SRC_CLK;
- count = cpu_speed / 2;
no_au1xxx_32khz = 1;
}
- mips_hpt_frequency = count;
+ mips_hpt_frequency = cpu_speed;
// Equation: Baudrate = CPU / (SD * 2 * CLKDIV * 16)
set_au1x00_uart_baud_base(cpu_speed / (2 * ((int)(au_readl(SYS_POWERCTRL)&0x03) + 2) * 16));
spin_unlock_irqrestore(&time_lock, flags);
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