MIPS: Netlogic: Use PRID_IMP_MASK macro

Use PRID_IMP_MASK macro instead of 0xff00 to extract the processor
type.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6868/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

6 files changed, 10 insertions, 9 deletions

diff --git a/arch/mips/include/asm/netlogic/mips-extns.h b/arch/mips/include/asm/netlogic/mips-extns.h
index de9aada6f4c1..38af905bf07e 100644
--- a/arch/mips/include/asm/netlogic/mips-extns.h
+++ b/arch/mips/include/asm/netlogic/mips-extns.h
@@ -146,9 +146,9 @@ static inline int hard_smp_processor_id(void)
 
 static inline int nlm_nodeid(void)
 {
-        uint32_t prid = read_c0_prid();
+        uint32_t prid = read_c0_prid() & PRID_IMP_MASK;
 
-        if ((prid & 0xff00) == PRID_IMP_NETLOGIC_XLP9XX)
+        if (prid == PRID_IMP_NETLOGIC_XLP9XX)
                 return (__read_32bit_c0_register($15, 1) >> 7) & 0x7;
         else
                 return (__read_32bit_c0_register($15, 1) >> 5) & 0x3;
diff --git a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
index bd7dda096506..a11b289956e6 100644
--- a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
+++ b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
@@ -99,7 +99,7 @@ void *xlp_dt_init(void *fdtp);
 
 static inline int cpu_is_xlpii(void)
 {
-        int chip = read_c0_prid() & 0xff00;
+        int chip = read_c0_prid() & PRID_IMP_MASK;
 
         return chip == PRID_IMP_NETLOGIC_XLP2XX ||
                 chip == PRID_IMP_NETLOGIC_XLP9XX;
@@ -107,7 +107,7 @@ static inline int cpu_is_xlpii(void)
 
 static inline int cpu_is_xlp9xx(void)
 {
-        int chip = read_c0_prid() & 0xff00;
+        int chip = read_c0_prid() & PRID_IMP_MASK;
 
         return chip == PRID_IMP_NETLOGIC_XLP9XX;
 }
diff --git a/arch/mips/netlogic/common/reset.S b/arch/mips/netlogic/common/reset.S
index 13c1bc5b5988..5b60b469da15 100644
--- a/arch/mips/netlogic/common/reset.S
+++ b/arch/mips/netlogic/common/reset.S
@@ -35,6 +35,7 @@
 
 #include <asm/asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/cpu.h>
 #include <asm/cacheops.h>
 #include <asm/regdef.h>
 #include <asm/mipsregs.h>
@@ -92,7 +93,7 @@
  */
 .macro  xlp_flush_l1_dcache
         mfc0    t0, CP0_EBASE, 0
-        andi    t0, t0, 0xff00
+        andi    t0, t0, PRID_IMP_MASK
         slt     t1, t0, 0x1200
         beqz    t1, 15f
         nop
@@ -171,7 +172,7 @@ FEXPORT(nlm_reset_entry)
 
 1:      /* Entry point on core wakeup */
         mfc0    t0, CP0_EBASE, 0        /* processor ID */
-        andi    t0, 0xff00
+        andi    t0, PRID_IMP_MASK
         li      t1, 0x1500              /* XLP 9xx */
         beq     t0, t1, 2f              /* does not need to set coherent */
         nop
diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c
index 5754097b9cde..0b36ac80a232 100644
--- a/arch/mips/netlogic/xlp/dt.c
+++ b/arch/mips/netlogic/xlp/dt.c
@@ -48,7 +48,7 @@ static void *xlp_fdt_blob;
 void __init *xlp_dt_init(void *fdtp)
 {
         if (!fdtp) {
-                switch (current_cpu_data.processor_id & 0xff00) {
+                switch (current_cpu_data.processor_id & PRID_IMP_MASK) {
 #ifdef CONFIG_DT_XLP_GVP
                 case PRID_IMP_NETLOGIC_XLP9XX:
                         fdtp = __dtb_xlp_gvp_begin;
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 8c60a2dd9ef6..1ddb62bd354b 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -121,7 +121,7 @@ void __init plat_mem_setup(void)
 
 const char *get_system_type(void)
 {
-        switch (read_c0_prid() & 0xff00) {
+        switch (read_c0_prid() & PRID_IMP_MASK) {
         case PRID_IMP_NETLOGIC_XLP9XX:
         case PRID_IMP_NETLOGIC_XLP2XX:
                 return "Broadcom XLPII Series";
diff --git a/arch/mips/netlogic/xlp/wakeup.c b/arch/mips/netlogic/xlp/wakeup.c
index 758923865886..f4823ad6145f 100644
--- a/arch/mips/netlogic/xlp/wakeup.c
+++ b/arch/mips/netlogic/xlp/wakeup.c
@@ -139,7 +139,7 @@ static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask)
                 } else {
                         fusemask = nlm_read_sys_reg(nodep->sysbase,
                                                 SYS_EFUSE_DEVICE_CFG_STATUS0);
-                        switch (read_c0_prid() & 0xff00) {
+                        switch (read_c0_prid() & PRID_IMP_MASK) {
                         case PRID_IMP_NETLOGIC_XLP3XX:
                                 mask = 0xf;
                                 break;