clk: renesas: r9a07g043: Add ethernet clock sources

Ethernet reference clock can be sourced from PLL5_500 or PLL6. Add
support for ethernet source clock selection using SEL_PLL_6_2 mux.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220402074626.25624-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/drivers/clk/renesas/r9a07g043-cpg.c b/drivers/clk/renesas/r9a07g043-cpg.c
index 0c574e1..b9011bc 100644 (file)
--- a/drivers/clk/renesas/r9a07g043-cpg.c
+++ b/drivers/clk/renesas/r9a07g043-cpg.c
@@ -32,7 +32,10 @@ enum clk_ids {
        CLK_PLL3_DIV2_4,
        CLK_PLL3_DIV2_4_2,
        CLK_PLL5,
+       CLK_PLL5_500,
+       CLK_PLL5_250,
        CLK_PLL6,
+       CLK_PLL6_250,
        CLK_P1_DIV2,
 
        /* Module Clocks */
@@ -57,6 +60,9 @@ static const struct clk_div_table dtable_1_32[] = {
        {0, 0},
 };
 
+/* Mux clock tables */
+static const char * const sel_pll6_2[] = { ".pll6_250", ".pll5_250" };
+
 static const struct cpg_core_clk r9a07g043_core_clks[] __initconst = {
        /* External Clock Inputs */
        DEF_INPUT("extal", CLK_EXTAL),
@@ -73,7 +79,10 @@ static const struct cpg_core_clk r9a07g043_core_clks[] __initconst = {
        DEF_FIXED(".pll3_div2_4", CLK_PLL3_DIV2_4, CLK_PLL3_DIV2, 1, 4),
        DEF_FIXED(".pll3_div2_4_2", CLK_PLL3_DIV2_4_2, CLK_PLL3_DIV2_4, 1, 2),
        DEF_FIXED(".pll5", CLK_PLL5, CLK_EXTAL, 125, 1),
+       DEF_FIXED(".pll5_500", CLK_PLL5_500, CLK_PLL5, 1, 6),
+       DEF_FIXED(".pll5_250", CLK_PLL5_250, CLK_PLL5_500, 1, 2),
        DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6),
+       DEF_FIXED(".pll6_250", CLK_PLL6_250, CLK_PLL6, 1, 2),
 
        /* Core output clk */
        DEF_DIV("I", R9A07G043_CLK_I, CLK_PLL1, DIVPL1A, dtable_1_8,
@@ -85,6 +94,10 @@ static const struct cpg_core_clk r9a07g043_core_clks[] __initconst = {
        DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A07G043_CLK_P1, 1, 2),
        DEF_DIV("P2", R9A07G043_CLK_P2, CLK_PLL3_DIV2_4_2,
                DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+       DEF_FIXED("M0", R9A07G043_CLK_M0, CLK_PLL3_DIV2_4, 1, 1),
+       DEF_FIXED("ZT", R9A07G043_CLK_ZT, CLK_PLL3_DIV2_4_2, 1, 1),
+       DEF_MUX("HP", R9A07G043_CLK_HP, SEL_PLL6_2,
+               sel_pll6_2, ARRAY_SIZE(sel_pll6_2), 0, CLK_MUX_HIWORD_MASK),
 };
 
 static struct rzg2l_mod_clk r9a07g043_mod_clks[] = {