1 files changed, 28 insertions, 21 deletions

diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 83780f7c842..befbb760ab7 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -20,10 +20,12 @@
 
 /* clock control register */
 #define CGU_IFCCR       0x0018
+#define CGU_IFCCR_VR9   0x0024
 /* system clock register */
 #define CGU_SYS         0x0010
 /* pci control register */
 #define CGU_PCICR       0x0034
+#define CGU_PCICR_VR9   0x0038
 /* ephy configuration register */
 #define CGU_EPHY        0x10
 /* power control register */
@@ -80,6 +82,9 @@ static void __iomem *pmu_membase;
 void __iomem *ltq_cgu_membase;
 void __iomem *ltq_ebu_membase;
 
+static u32 ifccr = CGU_IFCCR;
+static u32 pcicr = CGU_PCICR;
+
 /* legacy function kept alive to ease clkdev transition */
 void ltq_pmu_enable(unsigned int module)
 {
@@ -103,14 +108,14 @@ EXPORT_SYMBOL(ltq_pmu_disable);
 /* enable a hw clock */
 static int cgu_enable(struct clk *clk)
 {
-        ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | clk->bits, CGU_IFCCR);
+        ltq_cgu_w32(ltq_cgu_r32(ifccr) | clk->bits, ifccr);
         return 0;
 }
 
 /* disable a hw clock */
 static void cgu_disable(struct clk *clk)
 {
-        ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~clk->bits, CGU_IFCCR);
+        ltq_cgu_w32(ltq_cgu_r32(ifccr) & ~clk->bits, ifccr);
 }
 
 /* enable a clock gate */
@@ -138,22 +143,22 @@ static void pmu_disable(struct clk *clk)
 /* the pci enable helper */
 static int pci_enable(struct clk *clk)
 {
-        unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR);
+        unsigned int val = ltq_cgu_r32(ifccr);
         /* set bus clock speed */
         if (of_machine_is_compatible("lantiq,ar9")) {
-                ifccr &= ~0x1f00000;
+                val &= ~0x1f00000;
                 if (clk->rate == CLOCK_33M)
-                        ifccr |= 0xe00000;
+                        val |= 0xe00000;
                 else
-                        ifccr |= 0x700000; /* 62.5M */
+                        val |= 0x700000; /* 62.5M */
         } else {
-                ifccr &= ~0xf00000;
+                val &= ~0xf00000;
                 if (clk->rate == CLOCK_33M)
-                        ifccr |= 0x800000;
+                        val |= 0x800000;
                 else
-                        ifccr |= 0x400000; /* 62.5M */
+                        val |= 0x400000; /* 62.5M */
         }
-        ltq_cgu_w32(ifccr, CGU_IFCCR);
+        ltq_cgu_w32(val, ifccr);
         pmu_enable(clk);
         return 0;
 }
@@ -161,18 +166,16 @@ static int pci_enable(struct clk *clk)
 /* enable the external clock as a source */
 static int pci_ext_enable(struct clk *clk)
 {
-        ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~(1 << 16),
-                CGU_IFCCR);
-        ltq_cgu_w32((1 << 30), CGU_PCICR);
+        ltq_cgu_w32(ltq_cgu_r32(ifccr) & ~(1 << 16), ifccr);
+        ltq_cgu_w32((1 << 30), pcicr);
         return 0;
 }
 
 /* disable the external clock as a source */
 static void pci_ext_disable(struct clk *clk)
 {
-        ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | (1 << 16),
-                CGU_IFCCR);
-        ltq_cgu_w32((1 << 31) | (1 << 30), CGU_PCICR);
+        ltq_cgu_w32(ltq_cgu_r32(ifccr) | (1 << 16), ifccr);
+        ltq_cgu_w32((1 << 31) | (1 << 30), pcicr);
 }
 
 /* enable a clockout source */
@@ -184,11 +187,11 @@ static int clkout_enable(struct clk *clk)
         for (i = 0; i < 4; i++) {
                 if (clk->rates[i] == clk->rate) {
                         int shift = 14 - (2 * clk->module);
-                        unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR);
+                        unsigned int val = ltq_cgu_r32(ifccr);
 
-                        ifccr &= ~(3 << shift);
-                        ifccr |= i << shift;
-                        ltq_cgu_w32(ifccr, CGU_IFCCR);
+                        val &= ~(3 << shift);
+                        val |= i << shift;
+                        ltq_cgu_w32(val, ifccr);
                         return 0;
                 }
         }
@@ -336,8 +339,12 @@ void __init ltq_soc_init(void)
         clkdev_add_clkout();
 
         /* add the soc dependent clocks */
-        if (!of_machine_is_compatible("lantiq,vr9"))
+        if (of_machine_is_compatible("lantiq,vr9")) {
+                ifccr = CGU_IFCCR_VR9;
+                pcicr = CGU_PCICR_VR9;
+        } else {
                 clkdev_add_pmu("1e180000.etop", NULL, 0, PMU_PPE);
+        }
 
         if (!of_machine_is_compatible("lantiq,ase")) {
                 clkdev_add_pmu("1e100c00.serial", NULL, 0, PMU_ASC1);