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 abrodkin@synopsys.com --- 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 */