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Diffstat (limited to 'arch/powerpc/sysdev/fsl_soc.c')
-rw-r--r--arch/powerpc/sysdev/fsl_soc.c48
1 files changed, 13 insertions, 35 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index d93056eedcb0..19101f9cfcfc 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -77,13 +77,10 @@ phys_addr_t get_immrbase(void)
EXPORT_SYMBOL(get_immrbase);
-static u32 sysfreq = -1;
-
u32 fsl_get_sys_freq(void)
{
+ static u32 sysfreq = -1;
struct device_node *soc;
- const u32 *prop;
- int size;
if (sysfreq != -1)
return sysfreq;
@@ -92,12 +89,9 @@ u32 fsl_get_sys_freq(void)
if (!soc)
return -1;
- prop = of_get_property(soc, "clock-frequency", &size);
- if (!prop || size != sizeof(*prop) || *prop == 0)
- prop = of_get_property(soc, "bus-frequency", &size);
-
- if (prop && size == sizeof(*prop))
- sysfreq = *prop;
+ of_property_read_u32(soc, "clock-frequency", &sysfreq);
+ if (sysfreq == -1 || !sysfreq)
+ of_property_read_u32(soc, "bus-frequency", &sysfreq);
of_node_put(soc);
return sysfreq;
@@ -106,23 +100,17 @@ EXPORT_SYMBOL(fsl_get_sys_freq);
#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
-static u32 brgfreq = -1;
-
u32 get_brgfreq(void)
{
+ static u32 brgfreq = -1;
struct device_node *node;
- const unsigned int *prop;
- int size;
if (brgfreq != -1)
return brgfreq;
node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
if (node) {
- prop = of_get_property(node, "clock-frequency", &size);
- if (prop && size == 4)
- brgfreq = *prop;
-
+ of_property_read_u32(node, "clock-frequency", &brgfreq);
of_node_put(node);
return brgfreq;
}
@@ -135,15 +123,11 @@ u32 get_brgfreq(void)
node = of_find_node_by_type(NULL, "qe");
if (node) {
- prop = of_get_property(node, "brg-frequency", &size);
- if (prop && size == 4)
- brgfreq = *prop;
-
- if (brgfreq == -1 || brgfreq == 0) {
- prop = of_get_property(node, "bus-frequency", &size);
- if (prop && size == 4)
- brgfreq = *prop / 2;
- }
+ of_property_read_u32(node, "brg-frequency", &brgfreq);
+ if (brgfreq == -1 || !brgfreq)
+ if (!of_property_read_u32(node, "bus-frequency",
+ &brgfreq))
+ brgfreq /= 2;
of_node_put(node);
}
@@ -152,10 +136,9 @@ u32 get_brgfreq(void)
EXPORT_SYMBOL(get_brgfreq);
-static u32 fs_baudrate = -1;
-
u32 get_baudrate(void)
{
+ static u32 fs_baudrate = -1;
struct device_node *node;
if (fs_baudrate != -1)
@@ -163,12 +146,7 @@ u32 get_baudrate(void)
node = of_find_node_by_type(NULL, "serial");
if (node) {
- int size;
- const unsigned int *prop = of_get_property(node,
- "current-speed", &size);
-
- if (prop)
- fs_baudrate = *prop;
+ of_property_read_u32(node, "current-speed", &fs_baudrate);
of_node_put(node);
}