diff mbox series

[10/16] clk: renesas: Add support for RZ/V2L SoC

Message ID 20211221094717.16187-11-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series Add new Renesas RZ/V2L SoC and Renesas RZ/V2L SMARC EVK support | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Prabhakar Dec. 21, 2021, 9:47 a.m. UTC 
From: Biju Das <biju.das.jz@bp.renesas.com>

The clock structure for RZ/V2L is almost identical to RZ/G2L SoC. The only
difference being RZ/V2L has an additional registers to control clock and
reset for the DRP-AI block.

This patch adds minimal clock and reset entries required to boot the
system on Renesas RZ/V2L SMARC EVK and binds it with the RZ/G2L CPG core
driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/clk/renesas/Kconfig         |   7 +-
 drivers/clk/renesas/Makefile        |   1 +
 drivers/clk/renesas/r9a07g054-cpg.c | 184 ++++++++++++++++++++++++++++
 drivers/clk/renesas/rzg2l-cpg.c     |   6 +
 drivers/clk/renesas/rzg2l-cpg.h     |   1 +
 5 files changed, 198 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/renesas/r9a07g054-cpg.c
diff mbox series

Patch

diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index 6d0280751bb1..dfb7f3d7ca65 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_R9A06G032 if ARCH_R9A06G032
 	select CLK_R9A07G044 if ARCH_R9A07G044
+	select CLK_R9A07G054 if ARCH_R9A07G054
 	select CLK_SH73A0 if ARCH_SH73A0
 
 if CLK_RENESAS
@@ -159,6 +160,10 @@  config CLK_R9A07G044
 	bool "RZ/G2L clock support" if COMPILE_TEST
 	select CLK_RZG2L
 
+config CLK_R9A07G054
+	bool "RZ/V2L 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
@@ -186,7 +191,7 @@  config CLK_RCAR_USB2_CLOCK_SEL
 	  This is a driver for R-Car USB2 clock selector
 
 config CLK_RZG2L
-	bool "Renesas RZ/G2L family clock support" if COMPILE_TEST
+	bool "Renesas RZ/{G2L,V2L} family clock support" if COMPILE_TEST
 	select RESET_CONTROLLER
 
 # Generic
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 7d018700d08b..b5649474eb27 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-$(CONFIG_CLK_R9A06G032)		+= r9a06g032-clocks.o
 obj-$(CONFIG_CLK_R9A07G044)		+= r9a07g044-cpg.o
+obj-$(CONFIG_CLK_R9A07G054)		+= r9a07g054-cpg.o
 obj-$(CONFIG_CLK_SH73A0)		+= clk-sh73a0.o
 
 # Family
diff --git a/drivers/clk/renesas/r9a07g054-cpg.c b/drivers/clk/renesas/r9a07g054-cpg.c
new file mode 100644
index 000000000000..a8682cfae550
--- /dev/null
+++ b/drivers/clk/renesas/r9a07g054-cpg.c
@@ -0,0 +1,184 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RZ/V2L 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/r9a07g054-cpg.h>
+
+#include "rzg2l-cpg.h"
+
+enum clk_ids {
+	/* Core Clock Outputs exported to DT */
+	LAST_DT_CORE_CLK = R9A07G054_CLK_P0_DIV2,
+
+	/* External Input Clocks */
+	CLK_EXTAL,
+
+	/* Internal Core Clocks */
+	CLK_OSC_DIV1000,
+	CLK_PLL1,
+	CLK_PLL2,
+	CLK_PLL2_DIV2,
+	CLK_PLL2_DIV16,
+	CLK_PLL3,
+	CLK_PLL3_DIV2,
+	CLK_PLL3_DIV2_4,
+	CLK_PLL3_DIV2_4_2,
+	CLK_PLL3_DIV4,
+	CLK_PLL5,
+	CLK_PLL5_FOUT3,
+	CLK_PLL5_250,
+	CLK_PLL6,
+	CLK_PLL6_250,
+	CLK_P1_DIV2,
+
+	/* Module Clocks */
+	MOD_CLK_BASE,
+};
+
+/* Divider tables */
+static const struct clk_div_table dtable_1_32[] = {
+	{0, 1},
+	{1, 2},
+	{2, 4},
+	{3, 8},
+	{4, 32},
+	{0, 0},
+};
+
+/* Mux clock tables */
+static const char * const sel_pll6_2[]	= { ".pll6_250", ".pll5_250" };
+
+static const struct cpg_core_clk r9a07g054_core_clks[] __initconst = {
+	/* External Clock Inputs */
+	DEF_INPUT("extal", CLK_EXTAL),
+
+	/* Internal Core Clocks */
+	DEF_FIXED(".osc", R9A07G054_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(".pll5", CLK_PLL5, CLK_EXTAL, 125, 1),
+	DEF_FIXED(".pll5_fout3", CLK_PLL5_FOUT3, CLK_PLL5, 1, 6),
+
+	DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6),
+
+	DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2),
+	DEF_FIXED(".pll2_div16", CLK_PLL2_DIV16, CLK_PLL2, 1, 16),
+
+	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(".pll3_div4", CLK_PLL3_DIV4, CLK_PLL3, 1, 4),
+
+	DEF_FIXED(".pll5_250", CLK_PLL5_250, CLK_PLL5_FOUT3, 1, 2),
+	DEF_FIXED(".pll6_250", CLK_PLL6_250, CLK_PLL6, 1, 2),
+
+	/* Core output clk */
+	DEF_FIXED("I", R9A07G054_CLK_I, CLK_PLL1, 1, 1),
+	DEF_DIV("P0", R9A07G054_CLK_P0, CLK_PLL2_DIV16, DIVPL2A,
+		dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+	DEF_FIXED("P0_DIV2", R9A07G054_CLK_P0_DIV2, R9A07G054_CLK_P0, 1, 2),
+	DEF_DIV("P1", R9A07G054_CLK_P1, CLK_PLL3_DIV2_4,
+		DIVPL3B, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+	DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A07G054_CLK_P1, 1, 2),
+	DEF_DIV("P2", R9A07G054_CLK_P2, CLK_PLL3_DIV2_4_2,
+		DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
+	DEF_FIXED("M0", R9A07G054_CLK_M0, CLK_PLL3_DIV2_4, 1, 1),
+	DEF_FIXED("ZT", R9A07G054_CLK_ZT, CLK_PLL3_DIV2_4_2, 1, 1),
+	DEF_MUX("HP", R9A07G054_CLK_HP, SEL_PLL6_2,
+		sel_pll6_2, ARRAY_SIZE(sel_pll6_2), 0, CLK_MUX_HIWORD_MASK),
+};
+
+static struct rzg2l_mod_clk r9a07g054_mod_clks[] = {
+	DEF_MOD("gic",		R9A07G054_GIC600_GICCLK, R9A07G054_CLK_P1,
+				0x514, 0),
+	DEF_MOD("ia55_pclk",	R9A07G054_IA55_PCLK, R9A07G054_CLK_P2,
+				0x518, 0),
+	DEF_MOD("ia55_clk",	R9A07G054_IA55_CLK, R9A07G054_CLK_P1,
+				0x518, 1),
+	DEF_MOD("dmac_aclk",	R9A07G054_DMAC_ACLK, R9A07G054_CLK_P1,
+				0x52c, 0),
+	DEF_MOD("dmac_pclk",	R9A07G054_DMAC_PCLK, CLK_P1_DIV2,
+				0x52c, 1),
+	DEF_COUPLED("eth0_axi",	R9A07G054_ETH0_CLK_AXI, R9A07G054_CLK_M0,
+				0x57c, 0),
+	DEF_COUPLED("eth0_chi",	R9A07G054_ETH0_CLK_CHI, R9A07G054_CLK_ZT,
+				0x57c, 0),
+	DEF_COUPLED("eth1_axi",	R9A07G054_ETH1_CLK_AXI, R9A07G054_CLK_M0,
+				0x57c, 1),
+	DEF_COUPLED("eth1_chi",	R9A07G054_ETH1_CLK_CHI, R9A07G054_CLK_ZT,
+				0x57c, 1),
+	DEF_MOD("scif0",	R9A07G054_SCIF0_CLK_PCK, R9A07G054_CLK_P0,
+				0x584, 0),
+	DEF_MOD("scif1",	R9A07G054_SCIF1_CLK_PCK, R9A07G054_CLK_P0,
+				0x584, 1),
+	DEF_MOD("scif2",	R9A07G054_SCIF2_CLK_PCK, R9A07G054_CLK_P0,
+				0x584, 2),
+	DEF_MOD("scif3",	R9A07G054_SCIF3_CLK_PCK, R9A07G054_CLK_P0,
+				0x584, 3),
+	DEF_MOD("scif4",	R9A07G054_SCIF4_CLK_PCK, R9A07G054_CLK_P0,
+				0x584, 4),
+	DEF_MOD("sci0",		R9A07G054_SCI0_CLKP, R9A07G054_CLK_P0,
+				0x588, 0),
+	DEF_MOD("sci1",		R9A07G054_SCI1_CLKP, R9A07G054_CLK_P0,
+				0x588, 1),
+	DEF_MOD("gpio",		R9A07G054_GPIO_HCLK, R9A07G054_OSCCLK,
+				0x598, 0),
+};
+
+static struct rzg2l_reset r9a07g054_resets[] = {
+	DEF_RST(R9A07G054_GIC600_GICRESET_N, 0x814, 0),
+	DEF_RST(R9A07G054_GIC600_DBG_GICRESET_N, 0x814, 1),
+	DEF_RST(R9A07G054_IA55_RESETN, 0x818, 0),
+	DEF_RST(R9A07G054_DMAC_ARESETN, 0x82c, 0),
+	DEF_RST(R9A07G054_DMAC_RST_ASYNC, 0x82c, 1),
+	DEF_RST(R9A07G054_ETH0_RST_HW_N, 0x87c, 0),
+	DEF_RST(R9A07G054_ETH1_RST_HW_N, 0x87c, 1),
+	DEF_RST(R9A07G054_SCIF0_RST_SYSTEM_N, 0x884, 0),
+	DEF_RST(R9A07G054_SCIF1_RST_SYSTEM_N, 0x884, 1),
+	DEF_RST(R9A07G054_SCIF2_RST_SYSTEM_N, 0x884, 2),
+	DEF_RST(R9A07G054_SCIF3_RST_SYSTEM_N, 0x884, 3),
+	DEF_RST(R9A07G054_SCIF4_RST_SYSTEM_N, 0x884, 4),
+	DEF_RST(R9A07G054_SCI0_RST, 0x888, 0),
+	DEF_RST(R9A07G054_SCI1_RST, 0x888, 1),
+	DEF_RST(R9A07G054_GPIO_RSTN, 0x898, 0),
+	DEF_RST(R9A07G054_GPIO_PORT_RESETN, 0x898, 1),
+	DEF_RST(R9A07G054_GPIO_SPARE_RESETN, 0x898, 2),
+};
+
+static const unsigned int r9a07g054_crit_mod_clks[] __initconst = {
+	MOD_CLK_BASE + R9A07G054_GIC600_GICCLK,
+	MOD_CLK_BASE + R9A07G054_IA55_CLK,
+	MOD_CLK_BASE + R9A07G054_DMAC_ACLK,
+};
+
+const struct rzg2l_cpg_info r9a07g054_cpg_info = {
+	/* Core Clocks */
+	.core_clks = r9a07g054_core_clks,
+	.num_core_clks = ARRAY_SIZE(r9a07g054_core_clks),
+	.last_dt_core_clk = LAST_DT_CORE_CLK,
+	.num_total_core_clks = MOD_CLK_BASE,
+
+	/* Critical Module Clocks */
+	.crit_mod_clks = r9a07g054_crit_mod_clks,
+	.num_crit_mod_clks = ARRAY_SIZE(r9a07g054_crit_mod_clks),
+
+	/* Module Clocks */
+	.mod_clks = r9a07g054_mod_clks,
+	.num_mod_clks = ARRAY_SIZE(r9a07g054_mod_clks),
+	.num_hw_mod_clks = R9A07G054_TSU_PCLK + 1,
+
+	/* Resets */
+	.resets = r9a07g054_resets,
+	.num_resets = ARRAY_SIZE(r9a07g054_resets),
+};
diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index 4021f6cabda4..396496ce0dce 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -940,6 +940,12 @@  static const struct of_device_id rzg2l_cpg_match[] = {
 		.compatible = "renesas,r9a07g044-cpg",
 		.data = &r9a07g044_cpg_info,
 	},
+#endif
+#ifdef CONFIG_CLK_R9A07G054
+	{
+		.compatible = "renesas,r9a07g054-cpg",
+		.data = &r9a07g054_cpg_info,
+	},
 #endif
 	{ /* sentinel */ }
 };
diff --git a/drivers/clk/renesas/rzg2l-cpg.h b/drivers/clk/renesas/rzg2l-cpg.h
index 7fb6b4030f72..43e828064704 100644
--- a/drivers/clk/renesas/rzg2l-cpg.h
+++ b/drivers/clk/renesas/rzg2l-cpg.h
@@ -194,5 +194,6 @@  struct rzg2l_cpg_info {
 };
 
 extern const struct rzg2l_cpg_info r9a07g044_cpg_info;
+extern const struct rzg2l_cpg_info r9a07g054_cpg_info;
 
 #endif