dm: cpu: bmips: add BCM6318 support

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

diff --git a/drivers/cpu/bmips_cpu.c b/drivers/cpu/bmips_cpu.c
index 2e3f1de74e4bd1cb8e825a9e105ab7cdf272073e..4ad291a56e2a93d9ed50facecd8e47fd05edec5d 100644 (file)
--- a/drivers/cpu/bmips_cpu.c
+++ b/drivers/cpu/bmips_cpu.c
@@ -26,6 +26,10 @@ DECLARE_GLOBAL_DATA_PTR;
 #define REG_BCM6328_OTP                        0x62c
 #define BCM6328_TP1_DISABLED           BIT(9)
 
+#define REG_BCM6318_STRAP_OVRDBUS      0x900
+#define OVRDBUS_6318_FREQ_SHIFT                23
+#define OVRDBUS_6318_FREQ_MASK         (0x3 << OVRDBUS_6318_FREQ_SHIFT)
+
 #define REG_BCM6328_MISC_STRAPBUS      0x1a40
 #define STRAPBUS_6328_FCVO_SHIFT       7
 #define STRAPBUS_6328_FCVO_MASK                (0x1f << STRAPBUS_6328_FCVO_SHIFT)
@@ -112,6 +116,28 @@ static ulong bcm3380_get_cpu_freq(struct bmips_cpu_priv *priv)
        return 333000000;
 }
 
+static ulong bcm6318_get_cpu_freq(struct bmips_cpu_priv *priv)
+{
+       unsigned int mips_pll_fcvo;
+
+       mips_pll_fcvo = readl_be(priv->regs + REG_BCM6318_STRAP_OVRDBUS);
+       mips_pll_fcvo = (mips_pll_fcvo & OVRDBUS_6318_FREQ_MASK)
+                       >> OVRDBUS_6318_FREQ_SHIFT;
+
+       switch (mips_pll_fcvo) {
+       case 0:
+               return 166000000;
+       case 1:
+               return 400000000;
+       case 2:
+               return 250000000;
+       case 3:
+               return 333000000;
+       default:
+               return 0;
+       }
+}
+
 static ulong bcm6328_get_cpu_freq(struct bmips_cpu_priv *priv)
 {
        unsigned int mips_pll_fcvo;
@@ -233,6 +259,12 @@ static const struct bmips_cpu_hw bmips_cpu_bcm3380 = {
        .get_cpu_count = bcm6358_get_cpu_count,
 };
 
+static const struct bmips_cpu_hw bmips_cpu_bcm6318 = {
+       .get_cpu_desc = bmips_short_cpu_desc,
+       .get_cpu_freq = bcm6318_get_cpu_freq,
+       .get_cpu_count = bcm6345_get_cpu_count,
+};
+
 static const struct bmips_cpu_hw bmips_cpu_bcm6328 = {
        .get_cpu_desc = bmips_long_cpu_desc,
        .get_cpu_freq = bcm6328_get_cpu_freq,
@@ -347,6 +379,9 @@ static const struct udevice_id bmips_cpu_ids[] = {
        {
                .compatible = "brcm,bcm3380-cpu",
                .data = (ulong)&bmips_cpu_bcm3380,
+       }, {
+               .compatible = "brcm,bcm6318-cpu",
+               .data = (ulong)&bmips_cpu_bcm6318,
        }, {
                .compatible = "brcm,bcm6328-cpu",
                .data = (ulong)&bmips_cpu_bcm6328,