Define the clock outputs supported by RZ/G2L (R9A07G044) SoC
and bind it with RZ/G2L CPG core.
Based on a patch in the BSP by Binh Nguyen
<binh.nguyen.jz@xxxxxxxxxxx>.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Reviewed-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
drivers/clk/renesas/Kconfig | 5 +
drivers/clk/renesas/Makefile | 1 +
drivers/clk/renesas/r9a07g044-cpg.c | 127 ++++++++++++++++++++++++
drivers/clk/renesas/renesas-rzg2l-cpg.c | 6 ++
drivers/clk/renesas/renesas-rzg2l-cpg.h | 2 +
5 files changed, 141 insertions(+)
create mode 100644 drivers/clk/renesas/r9a07g044-cpg.c
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index a067428cb7af..916c7d227e25 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -32,6 +32,7 @@ config CLK_RENESAS
select CLK_R8A77995 if ARCH_R8A77995
select CLK_R8A779A0 if ARCH_R8A779A0
select CLK_R9A06G032 if ARCH_R9A06G032
+ select CLK_R9A07G044 if ARCH_R9A07G044
select CLK_SH73A0 if ARCH_SH73A0
if CLK_RENESAS
@@ -156,6 +157,10 @@ config CLK_R9A06G032
help
This is a driver for R9A06G032 clocks
+config CLK_R9A07G044
+ bool "RZ/G2L clock support" if COMPILE_TEST
+ select CLK_RZG2L
+
config CLK_SH73A0
bool "SH-Mobile AG5 clock support" if COMPILE_TEST
select CLK_RENESAS_CPG_MSTP
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index a9c299686b4a..5c6c5c721d98 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_CLK_R8A77990) += r8a77990-cpg-mssr.o
obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o
obj-$(CONFIG_CLK_R8A779A0) += r8a779a0-cpg-mssr.o
obj-$(CONFIG_CLK_R9A06G032) += r9a06g032-clocks.o
+obj-$(CONFIG_CLK_R9A07G044) += r9a07g044-cpg.o
obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o
# Family
diff --git a/drivers/clk/renesas/r9a07g044-cpg.c b/drivers/clk/renesas/r9a07g044-cpg.c
new file mode 100644
index 000000000000..50b5269586a4
--- /dev/null
+++ b/drivers/clk/renesas/r9a07g044-cpg.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RZ/G2L CPG driver
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/clock/r9a07g044-cpg.h>
+
+#include "renesas-rzg2l-cpg.h"
+
+enum clk_ids {
+ /* Core Clock Outputs exported to DT */
+ LAST_DT_CORE_CLK = R9A07G044_OSCCLK,
+
+ /* External Input Clocks */
+ CLK_EXTAL,
+
+ /* Internal Core Clocks */
+ CLK_OSC_DIV1000,
+ CLK_PLL1,
+ CLK_PLL2,
+ CLK_PLL2_DIV2,
+ CLK_PLL2_DIV16,
+ CLK_PLL2_DIV20,
+ CLK_PLL3,
+ CLK_PLL3_DIV2,
+ CLK_PLL3_DIV4,
+ CLK_PLL3_DIV8,
+ CLK_PLL4,
+ CLK_PLL5,
+ CLK_PLL5_DIV2,
+ CLK_PLL6,
+
+ /* Module Clocks */
+ MOD_CLK_BASE,
+};
+
+/* Divider tables */
+static const struct clk_div_table dtable_3b[] = {
+ {0, 1},
+ {1, 2},
+ {2, 4},
+ {3, 8},
+ {4, 32},
+};
+
+static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
+ /* External Clock Inputs */
+ DEF_INPUT("extal", CLK_EXTAL),
+
+ /* Internal Core Clocks */
+ DEF_FIXED(".osc", R9A07G044_OSCCLK, CLK_EXTAL, 1, 1),
+ DEF_FIXED(".osc_div1000", CLK_OSC_DIV1000, CLK_EXTAL, 1, 1000),
+ DEF_SAMPLL(".pll1", CLK_PLL1, CLK_EXTAL, PLL146_CONF(0)),
+ DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 133, 2),
+ DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 133, 2),
+
+ DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2),
+ DEF_FIXED(".pll2_div16", CLK_PLL2_DIV16, CLK_PLL2, 1, 16),
+ DEF_FIXED(".pll2_div20", CLK_PLL2_DIV20, CLK_PLL2, 1, 20),
+
+ DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 1, 2),
+ DEF_FIXED(".pll3_div4", CLK_PLL3_DIV4, CLK_PLL3, 1, 4),
+ DEF_FIXED(".pll3_div8", CLK_PLL3_DIV8, CLK_PLL3, 1, 8),
+
+ /* Core output clk */
+ DEF_FIXED("I", R9A07G044_CLK_I, CLK_PLL1, 1, 1),
+ DEF_DIV("P0", R9A07G044_CLK_P0, CLK_PLL2_DIV16, DIVPL2A,
+ dtable_3b, CLK_DIVIDER_HIWORD_MASK),
+ DEF_FIXED("TSU", R9A07G044_CLK_TSU, CLK_PLL2_DIV20, 1, 1),
+ DEF_DIV("P1", R9A07G044_CLK_P1, CLK_PLL3_DIV8,
+ DIVPL3B, dtable_3b, CLK_DIVIDER_HIWORD_MASK),
+};
+
+static struct rzg2l_mod_clk r9a07g044_mod_clks[] = {
+ DEF_MOD("gic", R9A07G044_CLK_GIC600,
+ R9A07G044_CLK_P1,
+ 0x514, BIT(0), (BIT(0) | BIT(1))),
+ DEF_MOD("ia55", R9A07G044_CLK_IA55,
+ R9A07G044_CLK_P1,
+ 0x518, (BIT(0) | BIT(1)), BIT(0)),
+ DEF_MOD("scif0", R9A07G044_CLK_SCIF0,
+ R9A07G044_CLK_P0,
+ 0x584, BIT(0), BIT(0)),
+ DEF_MOD("scif1", R9A07G044_CLK_SCIF1,
+ R9A07G044_CLK_P0,
+ 0x584, BIT(1), BIT(1)),
+ DEF_MOD("scif2", R9A07G044_CLK_SCIF2,
+ R9A07G044_CLK_P0,
+ 0x584, BIT(2), BIT(2)),
+ DEF_MOD("scif3", R9A07G044_CLK_SCIF3,
+ R9A07G044_CLK_P0,
+ 0x584, BIT(3), BIT(3)),
+ DEF_MOD("scif4", R9A07G044_CLK_SCIF4,
+ R9A07G044_CLK_P0,
+ 0x584, BIT(4), BIT(4)),
+ DEF_MOD("sci0", R9A07G044_CLK_SCI0,
+ R9A07G044_CLK_P0,
+ 0x588, BIT(0), BIT(0)),
+};
+
+static const unsigned int r9a07g044_crit_mod_clks[] __initconst = {
+ MOD_CLK_BASE + R9A07G044_CLK_GIC600,
+};
+
+const struct rzg2l_cpg_info r9a07g044_cpg_info = {
+ /* Core Clocks */
+ .core_clks = r9a07g044_core_clks,
+ .num_core_clks = ARRAY_SIZE(r9a07g044_core_clks),
+ .last_dt_core_clk = LAST_DT_CORE_CLK,
+ .num_total_core_clks = MOD_CLK_BASE,
+
+ /* Critical Module Clocks */
+ .crit_mod_clks = r9a07g044_crit_mod_clks,
+ .num_crit_mod_clks = ARRAY_SIZE(r9a07g044_crit_mod_clks),
+
+ /* Module Clocks */
+ .mod_clks = r9a07g044_mod_clks,
+ .num_mod_clks = ARRAY_SIZE(r9a07g044_mod_clks),
+ .num_hw_mod_clks = R9A07G044_CLK_MIPI_DSI_PIN + 1,
+};
diff --git a/drivers/clk/renesas/renesas-rzg2l-cpg.c b/drivers/clk/renesas/renesas-rzg2l-cpg.c
index 9e860d55c916..ef308cb2368f 100644
--- a/drivers/clk/renesas/renesas-rzg2l-cpg.c
+++ b/drivers/clk/renesas/renesas-rzg2l-cpg.c
@@ -723,6 +723,12 @@ static int __init rzg2l_cpg_probe(struct platform_device *pdev)
}
static const struct of_device_id rzg2l_cpg_match[] = {
+#ifdef CONFIG_CLK_R9A07G044
+ {
+ .compatible = "renesas,r9a07g044-cpg",
+ .data = &r9a07g044_cpg_info,
+ },
+#endif
{ /* sentinel */ }
};
diff --git a/drivers/clk/renesas/renesas-rzg2l-cpg.h b/drivers/clk/renesas/renesas-rzg2l-cpg.h
index 8ff0047ffeb9..3948bdd8afc9 100644
--- a/drivers/clk/renesas/renesas-rzg2l-cpg.h
+++ b/drivers/clk/renesas/renesas-rzg2l-cpg.h
@@ -131,4 +131,6 @@ struct rzg2l_cpg_info {
unsigned int num_crit_mod_clks;
};
+extern const struct rzg2l_cpg_info r9a07g044_cpg_info;
+
#endif
--
2.17.1
