[PATCH] iot_dk: Save CPU clock value to gd->cpu_clk

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[PATCH] iot_dk: Save CPU clock value to gd->cpu_clk

Alexey Brodkin
Since gd->cpu_clk is a global item we may once populate it from .dtb
ans use it then in other places like for printing CPU info etc.

Signed-off-by: Alexey Brodkin <[hidden email]>
---
 board/synopsys/iot_devkit/iot_devkit.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/board/synopsys/iot_devkit/iot_devkit.c b/board/synopsys/iot_devkit/iot_devkit.c
index 04e003c..40c29e7 100644
--- a/board/synopsys/iot_devkit/iot_devkit.c
+++ b/board/synopsys/iot_devkit/iot_devkit.c
@@ -108,7 +108,7 @@ extern u8 __ram_end[];
  */
 int mach_cpu_init(void)
 {
- int offset, freq;
+ int offset;
 
  /* Don't relocate U-Boot */
  gd->flags |= GD_FLG_SKIP_RELOC;
@@ -129,12 +129,12 @@ int mach_cpu_init(void)
  if (offset < 0)
  return offset;
 
- freq = fdtdec_get_int(gd->fdt_blob, offset, "clock-frequency", 0);
- if (!freq)
+ gd->cpu_clk = fdtdec_get_int(gd->fdt_blob, offset, "clock-frequency", 0);
+ if (!gd->cpu_clk)
  return -EINVAL;
 
  /* If CPU freq > 100 MHz, divide eFLASH clock by 2 */
- if (freq > 100000000) {
+ if (gd->cpu_clk > 100000000) {
  u32 reg = readl(AHBCKDIV);
 
  reg &= ~(0xF << 8);
@@ -142,7 +142,7 @@ int mach_cpu_init(void)
  writel(reg, AHBCKDIV);
  }
 
- return set_cpu_freq(freq);
+ return set_cpu_freq(gd->cpu_clk);
 }
 
 #define ARC_PERIPHERAL_BASE 0xF0000000
@@ -186,7 +186,9 @@ int checkboard(void)
 #ifdef CONFIG_DISPLAY_CPUINFO
 int print_cpuinfo(void)
 {
- printf("CPU:   ARC EM9D\n");
+ char mhz[8];
+
+ printf("CPU:   ARC EM9D at %s MHz\n", strmhz(mhz, gd->cpu_clk));
  return 0;
 }
 #endif /* CONFIG_DISPLAY_CPUINFO */
--
2.7.4


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