clk: kirkwood: Add support for MV98DX1135

The 98DX1135 is a switch chip with an integrated CPU. This is similar to
the 98DX4122 except that the core clock speed is fixed to 166Mhz.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/mvebu/kirkwood.c b/drivers/clk/mvebu/kirkwood.c
index 35af3aa..4768023 100644 (file)
--- a/drivers/clk/mvebu/kirkwood.c
+++ b/drivers/clk/mvebu/kirkwood.c
@@ -185,6 +185,11 @@ static void __init mv88f6180_get_clk_ratio(
        }
 }
 
+static u32 __init mv98dx1135_get_tclk_freq(void __iomem *sar)
+{
+       return 166666667;
+}
+
 static const struct coreclk_soc_desc kirkwood_coreclks = {
        .get_tclk_freq = kirkwood_get_tclk_freq,
        .get_cpu_freq = kirkwood_get_cpu_freq,
@@ -201,6 +206,14 @@ static const struct coreclk_soc_desc mv88f6180_coreclks = {
        .num_ratios = ARRAY_SIZE(kirkwood_coreclk_ratios),
 };
 
+static const struct coreclk_soc_desc mv98dx1135_coreclks = {
+       .get_tclk_freq = mv98dx1135_get_tclk_freq,
+       .get_cpu_freq = kirkwood_get_cpu_freq,
+       .get_clk_ratio = kirkwood_get_clk_ratio,
+       .ratios = kirkwood_coreclk_ratios,
+       .num_ratios = ARRAY_SIZE(kirkwood_coreclk_ratios),
+};
+
 /*
  * Clock Gating Control
  */
@@ -325,6 +338,8 @@ static void __init kirkwood_clk_init(struct device_node *np)
 
        if (of_device_is_compatible(np, "marvell,mv88f6180-core-clock"))
                mvebu_coreclk_setup(np, &mv88f6180_coreclks);
+       else if (of_device_is_compatible(np, "marvell,mv98dx1135-core-clock"))
+               mvebu_coreclk_setup(np, &mv98dx1135_coreclks);
        else
                mvebu_coreclk_setup(np, &kirkwood_coreclks);
 
@@ -339,3 +354,5 @@ CLK_OF_DECLARE(kirkwood_clk, "marvell,kirkwood-core-clock",
               kirkwood_clk_init);
 CLK_OF_DECLARE(mv88f6180_clk, "marvell,mv88f6180-core-clock",
               kirkwood_clk_init);
+CLK_OF_DECLARE(98dx1135_clk, "marvell,mv98dx1135-core-clock",
+              kirkwood_clk_init);