linux-kernel - [RFC PATCH 4/4] clk: renesas: r9a07g043: Add support for RZ/Five SoC

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Date:   Thu,  5 May 2022 20:31:43 +0100
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Prabhakar <prabhakar.csengg@...il.com>,
        Biju Das <biju.das.jz@...renesas.com>,
        Phil Edworthy <phil.edworthy@...esas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [RFC PATCH 4/4] clk: renesas: r9a07g043: Add support for RZ/Five SoC

Add minimal clock and resets entries required to boot RZ/Five SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 drivers/clk/renesas/r9a07g043-cpg.c | 30 +++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/renesas/r9a07g043-cpg.c b/drivers/clk/renesas/r9a07g043-cpg.c
index 27b47ecfe4d8..95ea639490ef 100644
--- a/drivers/clk/renesas/r9a07g043-cpg.c
+++ b/drivers/clk/renesas/r9a07g043-cpg.c
@@ -151,7 +151,7 @@ static const struct {
 static const struct {
 	struct rzg2l_mod_clk common[54];
 #ifdef CONFIG_RISCV
-	struct rzg2l_mod_clk rzfive[0];
+	struct rzg2l_mod_clk rzfive[2];
 #else
 	struct rzg2l_mod_clk rzg2ul[3];
 #endif
@@ -268,6 +268,10 @@ static const struct {
 	},
 #ifdef CONFIG_RISCV
 	.rzfive = {
+		DEF_MOD("iax45_pclk",	R9A07G043_IAX45_PCLK, R9A07G043_CLK_P2,
+					0x518, 0),
+		DEF_MOD("iax45_clk",	R9A07G043_IAX45_CLK, R9A07G043_CLK_P1,
+					0x518, 1),
 	},
 #else
 	.rzg2ul = {
@@ -284,7 +288,7 @@ static const struct {
 static const struct {
 	struct rzg2l_reset common[42];
 #ifdef CONFIG_RISCV
-	struct rzg2l_reset rzfive[0];
+	struct rzg2l_reset rzfive[1];
 #else
 	struct rzg2l_reset rzg2ul[3];
 #endif
@@ -335,6 +339,7 @@ static const struct {
 	},
 #ifdef CONFIG_RISCV
 	.rzfive = {
+		DEF_RST(R9A07G043_IAX45_RESETN, 0x818, 0),
 	},
 #else
 	.rzg2ul = {
@@ -345,16 +350,27 @@ static const struct {
 #endif
 };
 
+#ifdef CONFIG_RISCV
+static const unsigned int r9a07g043_crit_mod_clks[] __initconst = {
+	MOD_CLK_BASE + R9A07G043_IAX45_CLK,
+	MOD_CLK_BASE + R9A07G043_DMAC_ACLK,
+};
+#else
 static const unsigned int r9a07g043_crit_mod_clks[] __initconst = {
 	MOD_CLK_BASE + R9A07G043_GIC600_GICCLK,
 	MOD_CLK_BASE + R9A07G043_IA55_CLK,
 	MOD_CLK_BASE + R9A07G043_DMAC_ACLK,
 };
+#endif
 
 const struct rzg2l_cpg_info r9a07g043_cpg_info = {
 	/* Core Clocks */
 	.core_clks = core_clks.common,
+#ifdef CONFIG_RISCV
+	.num_core_clks = ARRAY_SIZE(core_clks.common),
+#else
 	.num_core_clks = ARRAY_SIZE(core_clks.common) + ARRAY_SIZE(core_clks.rzg2ul),
+#endif
 	.last_dt_core_clk = LAST_DT_CORE_CLK,
 	.num_total_core_clks = MOD_CLK_BASE,
 
@@ -364,10 +380,20 @@ const struct rzg2l_cpg_info r9a07g043_cpg_info = {
 
 	/* Module Clocks */
 	.mod_clks = mod_clks.common,
+#ifdef CONFIG_RISCV
+	.num_mod_clks = ARRAY_SIZE(mod_clks.common) + ARRAY_SIZE(mod_clks.rzfive),
+	.num_hw_mod_clks = R9A07G043_IAX45_PCLK + 1,
+#else
+
 	.num_mod_clks = ARRAY_SIZE(mod_clks.common) + ARRAY_SIZE(mod_clks.rzg2ul),
 	.num_hw_mod_clks = R9A07G043_TSU_PCLK + 1,
+#endif
 
 	/* Resets */
 	.resets = resets.common,
+#ifdef CONFIG_RISCV
+	.num_resets = ARRAY_SIZE(resets.common) + ARRAY_SIZE(resets.rzfive),
+#else
 	ARRAY_SIZE(resets.common) + ARRAY_SIZE(resets.rzg2ul),
+#endif
 };
-- 
2.25.1