nios2: use of_property_read_bool

Use of_property_read_bool instead of open-coding it as fpcu_has.
Convert the members of struct cpuinfo from u32 to bool accordingly as
they are only used as boolean anyhow.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

diff --git a/arch/nios2/include/asm/cpuinfo.h b/arch/nios2/include/asm/cpuinfo.h
index e88fcae..348bb22 100644 (file)
--- a/arch/nios2/include/asm/cpuinfo.h
+++ b/arch/nios2/include/asm/cpuinfo.h
@@ -25,10 +25,10 @@ struct cpuinfo {
        /* Core CPU configuration */
        char cpu_impl[12];
        u32 cpu_clock_freq;
-       u32 mmu;
-       u32 has_div;
-       u32 has_mul;
-       u32 has_mulx;
+       bool mmu;
+       bool has_div;
+       bool has_mul;
+       bool has_mulx;
 
        /* CPU caches */
        u32 icache_line_size;

diff --git a/arch/nios2/kernel/cpuinfo.c b/arch/nios2/kernel/cpuinfo.c
index 1d96de0..1cccc36 100644 (file)
--- a/arch/nios2/kernel/cpuinfo.c
+++ b/arch/nios2/kernel/cpuinfo.c
@@ -41,11 +41,6 @@ static inline u32 fcpu(struct device_node *cpu, const char *n)
        return val;
 }
 
-static inline u32 fcpu_has(struct device_node *cpu, const char *n)
-{
-       return of_get_property(cpu, n, NULL) ? 1 : 0;
-}
-
 void __init setup_cpuinfo(void)
 {
        struct device_node *cpu;
@@ -56,7 +51,7 @@ void __init setup_cpuinfo(void)
        if (!cpu)
                panic("%s: No CPU found in devicetree!\n", __func__);
 
-       if (!fcpu_has(cpu, "altr,has-initda"))
+       if (!of_property_read_bool(cpu, "altr,has-initda"))
                panic("initda instruction is unimplemented. Please update your "
                        "hardware system to have more than 4-byte line data "
                        "cache\n");
@@ -69,10 +64,10 @@ void __init setup_cpuinfo(void)
        else
                strcpy(cpuinfo.cpu_impl, "<unknown>");
 
-       cpuinfo.has_div = fcpu_has(cpu, "altr,has-div");
-       cpuinfo.has_mul = fcpu_has(cpu, "altr,has-mul");
-       cpuinfo.has_mulx = fcpu_has(cpu, "altr,has-mulx");
-       cpuinfo.mmu = fcpu_has(cpu, "altr,has-mmu");
+       cpuinfo.has_div = of_property_read_bool(cpu, "altr,has-div");
+       cpuinfo.has_mul = of_property_read_bool(cpu, "altr,has-mul");
+       cpuinfo.has_mulx = of_property_read_bool(cpu, "altr,has-mulx");
+       cpuinfo.mmu = of_property_read_bool(cpu, "altr,has-mmu");
 
        if (IS_ENABLED(CONFIG_NIOS2_HW_DIV_SUPPORT) && !cpuinfo.has_div)
                err_cpu("DIV");