[v2,2/3] clk: clk-axiclkgen: add ZynqMP PFD and VCO limits

Commit Message

Alexandru Ardelean Jan. 26, 2021, 11:08 a.m. UTC

For ZynqMP (Ultrascale) the PFD and VCO limits are different. In order to
support these, this change adds a compatible string (i.e.
'adi,zynqmp-axi-clkgen-2.00.a')  which will take into account for these
limits and apply them.

Signed-off-by: Dragos Bogdan <[e-mail]>
Signed-off-by: Mathias Tausen <[e-mail]>
Signed-off-by: Alexandru Ardelean <[e-mail]>
---
 drivers/clk/clk-axi-clkgen.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

Patch

diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c
index ad86e031ba3e..9d1b0fc56c73 100644
--- a/drivers/clk/clk-axi-clkgen.c
+++ b/drivers/clk/clk-axi-clkgen.c
@@ -108,6 +108,13 @@  static uint32_t axi_clkgen_lookup_lock(unsigned int m)
 	return 0x1f1f00fa;
 }
 
+static const struct axi_clkgen_limits axi_clkgen_zynqmp_default_limits = {
+	.fpfd_min = 10000,
+	.fpfd_max = 450000,
+	.fvco_min = 800000,
+	.fvco_max = 1600000,
+};
+
 static const struct axi_clkgen_limits axi_clkgen_zynq_default_limits = {
 	.fpfd_min = 10000,
 	.fpfd_max = 300000,
@@ -560,6 +567,10 @@  static int axi_clkgen_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id axi_clkgen_ids[] = {
+	{
+		.compatible = "adi,zynqmp-axi-clkgen-2.00.a",
+		.data = &axi_clkgen_zynqmp_default_limits,
+	},
 	{
 		.compatible = "adi,axi-clkgen-2.00.a",
 		.data = &axi_clkgen_zynq_default_limits,