The clock structure for RZ/G2UL is almost identical to RZ/G2L SoC with
fewer IP blocks. The IP blocks such as WDT1, GPT, H264, GPU and POEG are
not present on RZ/G2UL.
This patch adds minimal clock and reset entries required to boot the
system on Renesas RZ/G2UL SMARC EVK and binds it with the RZ/G2L CPG core
driver.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
drivers/clk/renesas/Kconfig | 7 +-
drivers/clk/renesas/Makefile | 1 +
drivers/clk/renesas/r9a07g043-cpg.c | 157 ++++++++++++++++++++++++++++
drivers/clk/renesas/rzg2l-cpg.c | 6 ++
drivers/clk/renesas/rzg2l-cpg.h | 1 +
5 files changed, 171 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/renesas/r9a07g043-cpg.c
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index c281f3af5716..63c78f2518e6 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -33,6 +33,7 @@ config CLK_RENESAS
select CLK_R8A779A0 if ARCH_R8A779A0
select CLK_R8A779F0 if ARCH_R8A779F0
select CLK_R9A06G032 if ARCH_R9A06G032
+ select CLK_R9A07G043U if ARCH_R9A07G043U
select CLK_R9A07G044 if ARCH_R9A07G044
select CLK_R9A07G054 if ARCH_R9A07G054
select CLK_SH73A0 if ARCH_SH73A0
@@ -160,6 +161,10 @@ config CLK_R8A779F0
config CLK_R9A06G032
bool "RZ/N1D clock support" if COMPILE_TEST
+config CLK_R9A07G043U
+ bool "RZ/G2UL clock support" if COMPILE_TEST
+ select CLK_RZG2L
+
config CLK_R9A07G044
bool "RZ/G2L clock support" if COMPILE_TEST
select CLK_RZG2L
@@ -200,7 +205,7 @@ config CLK_RCAR_USB2_CLOCK_SEL
This is a driver for R-Car USB2 clock selector
config CLK_RZG2L
- bool "Renesas RZ/{G2L,V2L} family clock support" if COMPILE_TEST
+ bool "Renesas RZ/{G2L,G2UL,V2L} family clock support" if COMPILE_TEST
select RESET_CONTROLLER
# Generic
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index d5e571699a30..814bbdd195dc 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o
obj-$(CONFIG_CLK_R8A779A0) += r8a779a0-cpg-mssr.o
obj-$(CONFIG_CLK_R8A779F0) += r8a779f0-cpg-mssr.o
obj-$(CONFIG_CLK_R9A06G032) += r9a06g032-clocks.o
+obj-$(CONFIG_CLK_R9A07G043U) += r9a07g043-cpg.o
obj-$(CONFIG_CLK_R9A07G044) += r9a07g044-cpg.o
obj-$(CONFIG_CLK_R9A07G054) += r9a07g044-cpg.o
obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o
diff --git a/drivers/clk/renesas/r9a07g043-cpg.c b/drivers/clk/renesas/r9a07g043-cpg.c
new file mode 100644
index 000000000000..2f731e0d5be3
--- /dev/null
+++ b/drivers/clk/renesas/r9a07g043-cpg.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RZ/G2UL CPG driver
+ *
+ * Copyright (C) 2022 Renesas Electronics Corp.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/clock/r9a07g043u-cpg.h>
+
+#include "rzg2l-cpg.h"
+
+enum clk_ids {
+ /* Core Clock Outputs exported to DT */
+ LAST_DT_CORE_CLK = R9A07G043U_CLK_P0_DIV2,
+
+ /* External Input Clocks */
+ CLK_EXTAL,
+
+ /* Internal Core Clocks */
+ CLK_OSC_DIV1000,
+ CLK_PLL1,
+ CLK_PLL2,
+ CLK_PLL2_DIV2,
+ CLK_PLL2_DIV2_8,
+ CLK_PLL3,
+ CLK_PLL3_DIV2,
+ CLK_PLL3_DIV2_4,
+ CLK_PLL3_DIV2_4_2,
+ CLK_PLL5,
+ CLK_PLL6,
+ CLK_P1_DIV2,
+
+ /* Module Clocks */
+ MOD_CLK_BASE,
+};
+
+/* Divider tables */
+static const struct clk_div_table dtable_1_8[] = {
+ {0, 1},
+ {1, 2},
+ {2, 4},
+ {3, 8},
+ {0, 0},
+};
+
+static const struct clk_div_table dtable_1_32[] = {
+ {0, 1},
+ {1, 2},
+ {2, 4},
+ {3, 8},
+ {4, 32},
+ {0, 0},
+};
+
+static const struct cpg_core_clk r9a07g043u_core_clks[] __initconst = {
+ /* External Clock Inputs */
+ DEF_INPUT("extal", CLK_EXTAL),
+
+ /* Internal Core Clocks */
+ DEF_FIXED(".osc", R9A07G043U_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, 200, 3),
+ DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2),
+ DEF_FIXED(".pll2_div2_8", CLK_PLL2_DIV2_8, CLK_PLL2_DIV2, 1, 8),
+ DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 200, 3),
+ DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 1, 2),
+ 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(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6),
+
+ /* Core output clk */
+ DEF_DIV("I", R9A07G043U_CLK_I, CLK_PLL1, DIVPL1A, dtable_1_8,
+ CLK_DIVIDER_HIWORD_MASK),
+ DEF_DIV("P0", R9A07G043U_CLK_P0, CLK_PLL2_DIV2_8, DIVPL2A,
+ dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+ DEF_DIV("P1", R9A07G043U_CLK_P1, CLK_PLL3_DIV2_4,
+ DIVPL3B, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+ DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A07G043U_CLK_P1, 1, 2),
+ DEF_DIV("P2", R9A07G043U_CLK_P2, CLK_PLL3_DIV2_4_2,
+ DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+};
+
+static struct rzg2l_mod_clk r9a07g043u_mod_clks[] = {
+ DEF_MOD("gic", R9A07G043U_GIC600_GICCLK, R9A07G043U_CLK_P1,
+ 0x514, 0),
+ DEF_MOD("ia55_pclk", R9A07G043U_IA55_PCLK, R9A07G043U_CLK_P2,
+ 0x518, 0),
+ DEF_MOD("ia55_clk", R9A07G043U_IA55_CLK, R9A07G043U_CLK_P1,
+ 0x518, 1),
+ DEF_MOD("dmac_aclk", R9A07G043U_DMAC_ACLK, R9A07G043U_CLK_P1,
+ 0x52c, 0),
+ DEF_MOD("dmac_pclk", R9A07G043U_DMAC_PCLK, CLK_P1_DIV2,
+ 0x52c, 1),
+ DEF_MOD("scif0", R9A07G043U_SCIF0_CLK_PCK, R9A07G043U_CLK_P0,
+ 0x584, 0),
+ DEF_MOD("scif1", R9A07G043U_SCIF1_CLK_PCK, R9A07G043U_CLK_P0,
+ 0x584, 1),
+ DEF_MOD("scif2", R9A07G043U_SCIF2_CLK_PCK, R9A07G043U_CLK_P0,
+ 0x584, 2),
+ DEF_MOD("scif3", R9A07G043U_SCIF3_CLK_PCK, R9A07G043U_CLK_P0,
+ 0x584, 3),
+ DEF_MOD("scif4", R9A07G043U_SCIF4_CLK_PCK, R9A07G043U_CLK_P0,
+ 0x584, 4),
+ DEF_MOD("sci0", R9A07G043U_SCI0_CLKP, R9A07G043U_CLK_P0,
+ 0x588, 0),
+ DEF_MOD("sci1", R9A07G043U_SCI1_CLKP, R9A07G043U_CLK_P0,
+ 0x588, 1),
+};
+
+static struct rzg2l_reset r9a07g043u_resets[] = {
+ DEF_RST(R9A07G043U_GIC600_GICRESET_N, 0x814, 0),
+ DEF_RST(R9A07G043U_GIC600_DBG_GICRESET_N, 0x814, 1),
+ DEF_RST(R9A07G043U_IA55_RESETN, 0x818, 0),
+ DEF_RST(R9A07G043U_DMAC_ARESETN, 0x82c, 0),
+ DEF_RST(R9A07G043U_DMAC_RST_ASYNC, 0x82c, 1),
+ DEF_RST(R9A07G043U_SCIF0_RST_SYSTEM_N, 0x884, 0),
+ DEF_RST(R9A07G043U_SCIF1_RST_SYSTEM_N, 0x884, 1),
+ DEF_RST(R9A07G043U_SCIF2_RST_SYSTEM_N, 0x884, 2),
+ DEF_RST(R9A07G043U_SCIF3_RST_SYSTEM_N, 0x884, 3),
+ DEF_RST(R9A07G043U_SCIF4_RST_SYSTEM_N, 0x884, 4),
+ DEF_RST(R9A07G043U_SCI0_RST, 0x888, 0),
+ DEF_RST(R9A07G043U_SCI1_RST, 0x888, 1),
+};
+
+static const unsigned int r9a07g043u_crit_mod_clks[] __initconst = {
+ MOD_CLK_BASE + R9A07G043U_GIC600_GICCLK,
+ MOD_CLK_BASE + R9A07G043U_IA55_CLK,
+ MOD_CLK_BASE + R9A07G043U_DMAC_ACLK,
+};
+
+const struct rzg2l_cpg_info r9a07g043u_cpg_info = {
+ /* Core Clocks */
+ .core_clks = r9a07g043u_core_clks,
+ .num_core_clks = ARRAY_SIZE(r9a07g043u_core_clks),
+ .last_dt_core_clk = LAST_DT_CORE_CLK,
+ .num_total_core_clks = MOD_CLK_BASE,
+
+ /* Critical Module Clocks */
+ .crit_mod_clks = r9a07g043u_crit_mod_clks,
+ .num_crit_mod_clks = ARRAY_SIZE(r9a07g043u_crit_mod_clks),
+
+ /* Module Clocks */
+ .mod_clks = r9a07g043u_mod_clks,
+ .num_mod_clks = ARRAY_SIZE(r9a07g043u_mod_clks),
+ .num_hw_mod_clks = R9A07G043U_TSU_PCLK + 1,
+
+ /* Resets */
+ .resets = r9a07g043u_resets,
+ .num_resets = R9A07G043U_LCDC_RESET_N + 1, /* Last reset ID + 1 */
+};
diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index 486d0656c58a..648eb670e6db 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -947,6 +947,12 @@ static int __init rzg2l_cpg_probe(struct platform_device *pdev)
}
static const struct of_device_id rzg2l_cpg_match[] = {
+#ifdef CONFIG_CLK_R9A07G043U
+ {
+ .compatible = "renesas,r9a07g043u-cpg",
+ .data = &r9a07g043u_cpg_info,
+ },
+#endif
#ifdef CONFIG_CLK_R9A07G044
{
.compatible = "renesas,r9a07g044-cpg",
diff --git a/drivers/clk/renesas/rzg2l-cpg.h b/drivers/clk/renesas/rzg2l-cpg.h
index ce657beaf160..c7f9a37c4156 100644
--- a/drivers/clk/renesas/rzg2l-cpg.h
+++ b/drivers/clk/renesas/rzg2l-cpg.h
@@ -202,6 +202,7 @@ struct rzg2l_cpg_info {
unsigned int num_crit_mod_clks;
};
+extern const struct rzg2l_cpg_info r9a07g043u_cpg_info;
extern const struct rzg2l_cpg_info r9a07g044_cpg_info;
extern const struct rzg2l_cpg_info r9a07g054_cpg_info;
--
2.17.1
