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dm: cpu: bmips: add BCM6348 support

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Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
master
Álvaro Fernández Rojas 7 years ago committed by Daniel Schwierzeck
parent 6ffc18cd04
commit 33a9995908
1 changed files with 34 additions and 0 deletions
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  1. 34
      drivers/cpu/bmips_cpu.c

34
drivers/cpu/bmips_cpu.c
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@ -30,6 +30,14 @@ DECLARE_GLOBAL_DATA_PTR;
#define STRAPBUS_6328_FCVO_SHIFT 7
#define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT)
#define REG_BCM6348_PERF_MIPSPLLCFG 0x34
#define MIPSPLLCFG_6348_M1CPU_SHIFT 6
#define MIPSPLLCFG_6348_M1CPU_MASK (0x7 << MIPSPLLCFG_6348_M1CPU_SHIFT)
#define MIPSPLLCFG_6348_N2_SHIFT 15
#define MIPSPLLCFG_6348_N2_MASK (0x1F << MIPSPLLCFG_6348_N2_SHIFT)
#define MIPSPLLCFG_6348_N1_SHIFT 20
#define MIPSPLLCFG_6348_N1_MASK (0x7 << MIPSPLLCFG_6348_N1_SHIFT)
#define REG_BCM6358_DDR_DMIPSPLLCFG 0x12b8
#define DMIPSPLLCFG_6358_M1_SHIFT 0
#define DMIPSPLLCFG_6358_M1_MASK (0xff << DMIPSPLLCFG_6358_M1_SHIFT)
@ -115,6 +123,18 @@ static ulong bcm6328_get_cpu_freq(struct bmips_cpu_priv *priv)
}
}
static ulong bcm6348_get_cpu_freq(struct bmips_cpu_priv *priv)
{
unsigned int tmp, n1, n2, m1;
tmp = readl_be(priv->regs + REG_BCM6348_PERF_MIPSPLLCFG);
n1 = (tmp & MIPSPLLCFG_6348_N1_MASK) >> MIPSPLLCFG_6348_N1_SHIFT;
n2 = (tmp & MIPSPLLCFG_6348_N2_MASK) >> MIPSPLLCFG_6348_N2_SHIFT;
m1 = (tmp & MIPSPLLCFG_6348_M1CPU_MASK) >> MIPSPLLCFG_6348_M1CPU_SHIFT;
return (16 * 1000000 * (n1 + 1) * (n2 + 2)) / (m1 + 1);
}
static ulong bcm6358_get_cpu_freq(struct bmips_cpu_priv *priv)
{
unsigned int tmp, n1, n2, m1;
@ -160,6 +180,11 @@ static int bcm6328_get_cpu_count(struct bmips_cpu_priv *priv)
return 2;
}
static int bcm6345_get_cpu_count(struct bmips_cpu_priv *priv)
{
return 1;
}
static int bcm6358_get_cpu_count(struct bmips_cpu_priv *priv)
{
return 2;
@ -171,6 +196,12 @@ static const struct bmips_cpu_hw bmips_cpu_bcm6328 = {
.get_cpu_count = bcm6328_get_cpu_count,
};
static const struct bmips_cpu_hw bmips_cpu_bcm6348 = {
.get_cpu_desc = bmips_short_cpu_desc,
.get_cpu_freq = bcm6348_get_cpu_freq,
.get_cpu_count = bcm6345_get_cpu_count,
};
static const struct bmips_cpu_hw bmips_cpu_bcm6358 = {
.get_cpu_desc = bmips_short_cpu_desc,
.get_cpu_freq = bcm6358_get_cpu_freq,
@ -262,6 +293,9 @@ static const struct udevice_id bmips_cpu_ids[] = {
.compatible = "brcm,bcm6328-cpu",
.data = (ulong)&bmips_cpu_bcm6328,
}, {
.compatible = "brcm,bcm6348-cpu",
.data = (ulong)&bmips_cpu_bcm6348,
}, {
.compatible = "brcm,bcm6358-cpu",
.data = (ulong)&bmips_cpu_bcm6358,
}, {

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