ARC: [plat-axs103] refactor the quad core DT quirk code

Refactor the quad core DT quirk code:
get rid of waste division and multiplication by 1000000 constant.

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c
index ac1a712f6f1fc80235d7a3ede7bbd8c3bbed815c..46544e88492d5273de4c6a121538fd4a6418ec65 100644 (file)
--- a/arch/arc/plat-axs10x/axs10x.c
+++ b/arch/arc/plat-axs10x/axs10x.c
@@ -317,19 +317,21 @@ static void __init axs103_early_init(void)
         * Instead of duplicating defconfig/DT for SMP/QUAD, add a small hack
         * of fudging the freq in DT
         */
+#define AXS103_QUAD_CORE_CPU_FREQ_HZ   50000000
+
        unsigned int num_cores = (read_aux_reg(ARC_REG_MCIP_BCR) >> 16) & 0x3F;
        if (num_cores > 2) {
-               u32 freq = 50, orig;
+               u32 freq;
                int off = fdt_path_offset(initial_boot_params, "/cpu_card/core_clk");
                const struct fdt_property *prop;
 
                prop = fdt_get_property(initial_boot_params, off,
                                        "assigned-clock-rates", NULL);
-               orig = be32_to_cpu(*(u32*)(prop->data)) / 1000000;
+               freq = be32_to_cpu(*(u32 *)(prop->data));
 
                /* Patching .dtb in-place with new core clock value */
-               if (freq != orig ) {
-                       freq = cpu_to_be32(freq * 1000000);
+               if (freq != AXS103_QUAD_CORE_CPU_FREQ_HZ) {
+                       freq = cpu_to_be32(AXS103_QUAD_CORE_CPU_FREQ_HZ);
                        fdt_setprop_inplace(initial_boot_params, off,
                                            "assigned-clock-rates", &freq, sizeof(freq));
                }