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ARC: Don't try to use value of top level clock-frequency in DT
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We no longer use it and instead a real clk device such as fixed-clk
instance is fed to timers etc.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
[vgupta: broken out of a bigger patch, rewrote changelog]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Alexey Brodkin authored and Vineet Gupta committed May 9, 2016
1 parent 0e6e9b6 commit 20c7dbb
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Showing 2 changed files with 7 additions and 7 deletions.
12 changes: 7 additions & 5 deletions arch/arc/kernel/setup.c
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@
#include <asm/page.h>
#include <asm/irq.h>
#include <asm/unwind.h>
#include <asm/clk.h>
#include <asm/mach_desc.h>
#include <asm/smp.h>

Expand Down Expand Up @@ -219,10 +218,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
if (tbl->info.id == 0)
n += scnprintf(buf + n, len - n, "UNKNOWN ARC Processor\n");

n += scnprintf(buf + n, len - n, "CPU speed\t: %u.%02u Mhz\n",
(unsigned int)(arc_get_core_freq() / 1000000),
(unsigned int)(arc_get_core_freq() / 10000) % 100);

n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s\nISA Extn\t: ",
IS_AVAIL1(cpu->extn.timer0, "Timer0 "),
IS_AVAIL1(cpu->extn.timer1, "Timer1 "),
Expand Down Expand Up @@ -472,6 +467,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
{
char *str;
int cpu_id = ptr_to_cpu(v);
struct device_node *core_clk = of_find_node_by_name(NULL, "core_clk");
u32 freq = 0;

if (!cpu_online(cpu_id)) {
seq_printf(m, "processor [%d]\t: Offline\n", cpu_id);
Expand All @@ -484,6 +481,11 @@ static int show_cpuinfo(struct seq_file *m, void *v)

seq_printf(m, arc_cpu_mumbojumbo(cpu_id, str, PAGE_SIZE));

of_property_read_u32(core_clk, "clock-frequency", &freq);
if (freq)
seq_printf(m, "CPU speed\t: %u.%02u Mhz\n",
freq / 1000000, (freq / 10000) % 100);

seq_printf(m, "Bogo MIPS\t: %lu.%02lu\n",
loops_per_jiffy / (500000 / HZ),
(loops_per_jiffy / (5000 / HZ)) % 100);
Expand Down
2 changes: 0 additions & 2 deletions arch/arc/plat-axs10x/axs10x.c
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,6 @@
#include <linux/libfdt.h>

#include <asm/asm-offsets.h>
#include <asm/clk.h>
#include <asm/io.h>
#include <asm/mach_desc.h>
#include <asm/mcip.h>
Expand Down Expand Up @@ -448,7 +447,6 @@ static void __init axs103_early_init(void)

/* Patching .dtb in-place with new core clock value */
if (freq != orig ) {
arc_set_core_freq(freq * 1000000);
freq = cpu_to_be32(freq * 1000000);
fdt_setprop_inplace(initial_boot_params, offset,
"clock-frequency", &freq, sizeof(freq));
Expand Down

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