Re: [U-Boot] [PATCH 8/8] clk: zynq: Add optional ethernet emio clock source support

On 4.1.2017 13:27, stefan.herbrechtsmeier@weidmueller.com wrote:

From: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com

Add support for the optional ethernet emio clock source to the zynq clock framework driver.

Signed-off-by: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com

---

drivers/clk/clk_zynq.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk_zynq.c b/drivers/clk/clk_zynq.c index d276155..6f1448d 100644 --- a/drivers/clk/clk_zynq.c +++ b/drivers/clk/clk_zynq.c @@ -53,6 +53,9 @@ enum zynq_clk_rclk {mio_clk, emio_clk};

struct zynq_clk_priv { ulong ps_clk_freq; +#ifndef CONFIG_SPL_BUILD

• struct clk gem_emio_clk[2];

+#endif };

static void *zynq_clk_get_register(enum zynq_clk id) @@ -284,10 +287,16 @@ static ulong zynq_clk_get_peripheral_rate(struct zynq_clk_priv *priv, #ifndef CONFIG_SPL_BUILD static ulong zynq_clk_get_gem_rate(struct zynq_clk_priv *priv, enum zynq_clk id) {

• struct clk *parent;
• if (zynq_clk_get_gem_rclk(id) == mio_clk) return zynq_clk_get_peripheral_rate(priv, id, true);

• return 0;

• parent = &priv->gem_emio_clk[id - gem0_clk];
• if (parent)

• return clk_get_rate(parent);
  

• return -ENXIO;

}

static unsigned long zynq_clk_calc_peripheral_two_divs( @@ -354,10 +363,16 @@ static ulong zynq_clk_set_peripheral_rate(struct zynq_clk_priv *priv, static ulong zynq_clk_set_gem_rate(struct zynq_clk_priv *priv, enum zynq_clk id, ulong rate) {

• struct clk *parent;
• if (zynq_clk_get_gem_rclk(id) == mio_clk) return zynq_clk_set_peripheral_rate(priv, id, rate, true);

• return 0;

• parent = &priv->gem_emio_clk[id - gem0_clk];
• if (parent)

• return clk_set_rate(parent, rate);
  

• return -ENXIO;

} #endif

@@ -447,6 +462,20 @@ static struct clk_ops zynq_clk_ops = { static int zynq_clk_probe(struct udevice *dev) { struct zynq_clk_priv *priv = dev_get_priv(dev); +#ifndef CONFIG_SPL_BUILD

• unsigned int i;
• char name[16];
• int ret;
• for (i = 0; i < 2; i++) {

• sprintf(name, "gem%d_emio_clk", i);
  

• ret = clk_get_by_name(dev, name, &priv->gem_emio_clk[i]);
  

• if (ret < 0 && ret != -FDT_ERR_NOTFOUND) {
  

• 	dev_err(dev, "failed to get %s clock\n", name);
  

• 	return ret;
  

• }
  

• }

+#endif

priv->ps_clk_freq = fdtdec_get_uint(gd->fdt_blob, dev->of_offset, "ps-clk-frequency", 33333333UL);

Ah ok. Here it is emio stuff for ethernet.

Thanks, Michal