From 70d30d8684de09bfed3ecf4f23be9319aa699148 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
Date: Sat, 20 Jan 2018 19:16:02 +0100
Subject: [PATCH] dm: cpu: bmips: add BCM6318 support
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit
Signed-off-by: Ãlvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
---
drivers/cpu/bmips_cpu.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/drivers/cpu/bmips_cpu.c b/drivers/cpu/bmips_cpu.c
index 2e3f1de74e..4ad291a56e 100644
--- 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,
--
2.39.5