Initial CPG support for R-Car V4H (r8a779g0).
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/clk/renesas/Kconfig | 5 +
drivers/clk/renesas/Makefile | 1 +
drivers/clk/renesas/r8a779g0-cpg-mssr.c | 215 ++++++++++++++++++++++++
drivers/clk/renesas/renesas-cpg-mssr.c | 6 +
drivers/clk/renesas/renesas-cpg-mssr.h | 1 +
5 files changed, 228 insertions(+)
create mode 100644 drivers/clk/renesas/r8a779g0-cpg-mssr.c
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index a95ed8f310da..7e9b9a5bb5b7 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_R8A779F0 if ARCH_R8A779F0
+ select CLK_R8A779G0 if ARCH_R8A779G0
select CLK_R9A06G032 if ARCH_R9A06G032
select CLK_R9A07G043 if ARCH_R9A07G043
select CLK_R9A07G044 if ARCH_R9A07G044
@@ -158,6 +159,10 @@ config CLK_R8A779F0
bool "R-Car S4-8 clock support" if COMPILE_TEST
select CLK_RCAR_GEN4_CPG
+config CLK_R8A779G0
+ bool "R-Car V4H clock support" if COMPILE_TEST
+ select CLK_RCAR_GEN4_CPG
+
config CLK_R9A06G032
bool "RZ/N1D clock support" if COMPILE_TEST
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index ca3a9bbcf27a..b83062af090c 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_R8A779F0) += r8a779f0-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A779G0) += r8a779g0-cpg-mssr.o
obj-$(CONFIG_CLK_R9A06G032) += r9a06g032-clocks.o
obj-$(CONFIG_CLK_R9A07G043) += r9a07g043-cpg.o
obj-$(CONFIG_CLK_R9A07G044) += r9a07g044-cpg.o
diff --git a/drivers/clk/renesas/r8a779g0-cpg-mssr.c b/drivers/clk/renesas/r8a779g0-cpg-mssr.c
new file mode 100644
index 000000000000..eaa89bbfd006
--- /dev/null
+++ b/drivers/clk/renesas/r8a779g0-cpg-mssr.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * r8a779g0 Clock Pulse Generator / Module Standby and Software Reset
+ *
+ * Copyright (C) 2022 Renesas Electronics Corp.
+ *
+ * Based on r8a779g0-cpg-mssr.c
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/soc/renesas/rcar-rst.h>
+
+#include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
+
+#include "renesas-cpg-mssr.h"
+#include "rcar-gen4-cpg.h"
+
+enum clk_ids {
+ /* Core Clock Outputs exported to DT */
+ LAST_DT_CORE_CLK = R8A779G0_CLK_R,
+
+ /* External Input Clocks */
+ CLK_EXTAL,
+ CLK_EXTALR,
+
+ /* Internal Core Clocks */
+ CLK_MAIN,
+ CLK_PLL1,
+ CLK_PLL2,
+ CLK_PLL3,
+ CLK_PLL4,
+ CLK_PLL5,
+ CLK_PLL6,
+ CLK_PLL1_DIV2,
+ CLK_PLL2_DIV2,
+ CLK_PLL3_DIV2,
+ CLK_PLL4_DIV2,
+ CLK_PLL5_DIV2,
+ CLK_PLL5_DIV4,
+ CLK_PLL6_DIV2,
+ CLK_S0,
+ CLK_S0_VIO,
+ CLK_S0_VC,
+ CLK_S0_HSC,
+ CLK_SV_VIP,
+ CLK_SV_IR,
+ CLK_SDSRC,
+ CLK_RPCSRC,
+ CLK_VIOBUS,
+ CLK_VCBUS,
+ CLK_OCO,
+
+ /* Module Clocks */
+ MOD_CLK_BASE
+};
+
+static const struct cpg_core_clk r8a779g0_core_clks[] __initconst = {
+ /* External Clock Inputs */
+ DEF_INPUT("extal", CLK_EXTAL),
+ DEF_INPUT("extalr", CLK_EXTALR),
+
+ /* Internal Core Clocks */
+ DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN4_MAIN, CLK_EXTAL),
+ DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN4_PLL1, CLK_MAIN),
+ DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN4_PLL2, CLK_MAIN),
+ DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN4_PLL3, CLK_MAIN),
+ DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN4_PLL4, CLK_MAIN),
+ DEF_BASE(".pll5", CLK_PLL5, CLK_TYPE_GEN4_PLL5, CLK_MAIN),
+ DEF_BASE(".pll6", CLK_PLL6, CLK_TYPE_GEN4_PLL6, CLK_MAIN),
+
+ DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
+ DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 2, 1),
+ DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 2, 1),
+ DEF_FIXED(".pll4_div2", CLK_PLL4_DIV2, CLK_PLL4, 2, 1),
+ DEF_FIXED(".pll5_div2", CLK_PLL5_DIV2, CLK_PLL5, 2, 1),
+ DEF_FIXED(".pll5_div4", CLK_PLL5_DIV4, CLK_PLL5_DIV2, 2, 1),
+ DEF_FIXED(".pll6_div2", CLK_PLL6_DIV2, CLK_PLL6, 2, 1),
+ DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1),
+ DEF_FIXED(".s0_vio", CLK_S0_VIO, CLK_PLL1_DIV2, 2, 1),
+ DEF_FIXED(".s0_vc", CLK_S0_VC, CLK_PLL1_DIV2, 2, 1),
+ DEF_FIXED(".s0_hsc", CLK_S0_HSC, CLK_PLL1_DIV2, 2, 1),
+ DEF_FIXED(".sv_vip", CLK_SV_VIP, CLK_PLL1_DIV2, 2, 1),
+ DEF_FIXED(".sv_ir", CLK_SV_IR, CLK_PLL1_DIV2, 2, 1),
+ DEF_BASE(".sdsrc", CLK_SDSRC, CLK_TYPE_GEN4_SDSRC, CLK_PLL5),
+ DEF_RATE(".oco", CLK_OCO, 32768),
+
+ DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_GEN4_RPCSRC, CLK_PLL5),
+ DEF_BASE(".rpc", R8A779G0_CLK_RPC, CLK_TYPE_GEN4_RPC, CLK_RPCSRC),
+ DEF_BASE("rpcd2", R8A779G0_CLK_RPCD2, CLK_TYPE_GEN4_RPCD2, R8A779G0_CLK_RPC),
+ DEF_FIXED(".vio", CLK_VIOBUS, CLK_PLL5_DIV2, 3, 1),
+ DEF_FIXED(".vc", CLK_VCBUS, CLK_PLL5_DIV2, 3, 1),
+
+ /* Core Clock Outputs */
+ DEF_FIXED("s0d2", R8A779G0_CLK_S0D2, CLK_S0, 2, 1),
+ DEF_FIXED("s0d3", R8A779G0_CLK_S0D3, CLK_S0, 3, 1),
+ DEF_FIXED("s0d4", R8A779G0_CLK_S0D4, CLK_S0, 4, 1),
+ DEF_FIXED("cl16m", R8A779G0_CLK_CL16M, CLK_S0, 48, 1),
+ DEF_FIXED("s0d1_vio", R8A779G0_CLK_S0D1_VIO, CLK_S0_VIO, 1, 1),
+ DEF_FIXED("s0d2_vio", R8A779G0_CLK_S0D2_VIO, CLK_S0_VIO, 2, 1),
+ DEF_FIXED("s0d4_vio", R8A779G0_CLK_S0D4_VIO, CLK_S0_VIO, 4, 1),
+ DEF_FIXED("s0d8_vio", R8A779G0_CLK_S0D8_VIO, CLK_S0_VIO, 8, 1),
+ DEF_FIXED("s0d1_vc", R8A779G0_CLK_S0D1_VC, CLK_S0_VC, 1, 1),
+ DEF_FIXED("s0d2_vc", R8A779G0_CLK_S0D2_VC, CLK_S0_VC, 2, 1),
+ DEF_FIXED("s0d4_vc", R8A779G0_CLK_S0D4_VC, CLK_S0_VC, 4, 1),
+ DEF_FIXED("s0d2_mm", R8A779G0_CLK_S0D2_MM, CLK_S0, 2, 1),
+ DEF_FIXED("s0d4_mm", R8A779G0_CLK_S0D4_MM, CLK_S0, 4, 1),
+ DEF_FIXED("cl16m_mm", R8A779G0_CLK_CL16M_MM, CLK_S0, 48, 1),
+ DEF_FIXED("s0d2_u3dg", R8A779G0_CLK_S0D2_U3DG, CLK_S0, 2, 1),
+ DEF_FIXED("s0d4_u3dg", R8A779G0_CLK_S0D4_U3DG, CLK_S0, 4, 1),
+ DEF_FIXED("s0d2_rt", R8A779G0_CLK_S0D2_RT, CLK_S0, 2, 1),
+ DEF_FIXED("s0d3_rt", R8A779G0_CLK_S0D3_RT, CLK_S0, 3, 1),
+ DEF_FIXED("s0d4_rt", R8A779G0_CLK_S0D4_RT, CLK_S0, 4, 1),
+ DEF_FIXED("s0d6_rt", R8A779G0_CLK_S0D6_RT, CLK_S0, 6, 1),
+ DEF_FIXED("s0d24_rt", R8A779G0_CLK_S0D24_RT, CLK_S0, 24, 1),
+ DEF_FIXED("cl16m_rt", R8A779G0_CLK_CL16M_RT, CLK_S0, 48, 1),
+ DEF_FIXED("s0d2_per", R8A779G0_CLK_S0D2_PER, CLK_S0, 2, 1),
+ DEF_FIXED("s0d3_per", R8A779G0_CLK_S0D3_PER, CLK_S0, 3, 1),
+ DEF_FIXED("s0d6_per", R8A779G0_CLK_S0D6_PER, CLK_S0, 6, 1),
+ DEF_FIXED("s0d12_per", R8A779G0_CLK_S0D12_PER, CLK_S0, 12, 1),
+ DEF_FIXED("s0d24_per", R8A779G0_CLK_S0D24_PER, CLK_S0, 24, 1),
+ DEF_FIXED("cl16m_per", R8A779G0_CLK_CL16M_PER, CLK_S0, 48, 1),
+ DEF_FIXED("s0d1_hsc", R8A779G0_CLK_S0D1_HSC, CLK_S0_HSC, 1, 1),
+ DEF_FIXED("s0d2_hsc", R8A779G0_CLK_S0D2_HSC, CLK_S0_HSC, 2, 1),
+ DEF_FIXED("s0d4_hsc", R8A779G0_CLK_S0D4_HSC, CLK_S0_HSC, 4, 1),
+ DEF_FIXED("cl16m_hsc", R8A779G0_CLK_CL16M_HSC, CLK_S0_HSC, 48, 1),
+ DEF_FIXED("s0d2_cc", R8A779G0_CLK_S0D2_CC, CLK_S0, 2, 1),
+ DEF_FIXED("svd1_ir", R8A779G0_CLK_SVD1_IR, CLK_SV_IR, 1, 1),
+ DEF_FIXED("svd2_ir", R8A779G0_CLK_SVD2_IR, CLK_SV_IR, 2, 1),
+ DEF_FIXED("svd1_vip", R8A779G0_CLK_SVD1_VIP, CLK_SV_VIP, 1, 1),
+ DEF_FIXED("svd2_vip", R8A779G0_CLK_SVD2_VIP, CLK_SV_VIP, 2, 1),
+ DEF_FIXED("s0d2_cc", R8A779G0_CLK_S0D2_CC, CLK_S0, 2, 1),
+ DEF_FIXED("cbfusa", R8A779G0_CLK_CBFUSA, CLK_EXTAL, 2, 1),
+ DEF_FIXED("cpex", R8A779G0_CLK_CPEX, CLK_EXTAL, 2, 1),
+ DEF_FIXED("viobusd2", R8A779G0_CLK_VIOBUSD2, CLK_VIOBUS, 2, 1),
+ DEF_FIXED("vcbusd2", R8A779G0_CLK_VCBUSD2, CLK_VCBUS, 2, 1),
+
+ DEF_GEN4_SD("sd0", R8A779G0_CLK_SD0, CLK_SDSRC, 0x870),
+ DEF_DIV6P1("mso", R8A779G0_CLK_MSO, CLK_PLL5_DIV4, 0x87c),
+
+ DEF_GEN4_OSC("osc", R8A779G0_CLK_OSC, CLK_EXTAL, 8),
+ DEF_GEN4_MDSEL("r", R8A779G0_CLK_R, 29, CLK_EXTALR, 1, CLK_OCO, 1),
+};
+
+static const struct mssr_mod_clk r8a779g0_mod_clks[] __initconst = {
+ DEF_MOD("hscif0", 514, R8A779G0_CLK_S0D3_PER),
+ DEF_MOD("hscif1", 515, R8A779G0_CLK_S0D3_PER),
+ DEF_MOD("hscif2", 516, R8A779G0_CLK_S0D3_PER),
+ DEF_MOD("hscif3", 517, R8A779G0_CLK_S0D3_PER),
+};
+
+/*
+ * CPG Clock Data
+ */
+/*
+ * MD EXTAL PLL1 PLL2 PLL3 PLL4 PLL5 PLL6 OSC
+ * 14 13 (MHz)
+ * ----------------------------------------------------------------
+ * 0 0 16.66 / 1 x192 x204 x192 x144 x192 x168 /8
+ * 0 1 20 / 1 x160 x170 x160 x120 x160 x140 /8
+ * 1 0 Prohibited setting
+ * 1 1 33.33 / 2 x192 x204 x192 x144 x192 x168 /8
+ */
+#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \
+ (((md) & BIT(13)) >> 13))
+
+static const struct rcar_gen4_cpg_pll_config cpg_pll_configs[4] = {
+ /* EXTAL div PLL1 mult/div PLL2 mult/div PLL3 mult/div PLL4 mult/div PLL5 mult/div PLL6 mult/div OSC prediv */
+ { 1, 192, 1, 204, 1, 192, 1, 144, 1, 192, 1, 168, 1, 8, },
+ { 1, 160, 1, 170, 1, 160, 1, 120, 1, 160, 1, 140, 1, 8, },
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
+ { 2, 192, 1, 204, 1, 192, 1, 144, 1, 192, 1, 168, 1, 8, },
+};
+
+static int __init r8a779g0_cpg_mssr_init(struct device *dev)
+{
+ const struct rcar_gen4_cpg_pll_config *cpg_pll_config;
+ u32 cpg_mode;
+ int error;
+
+ error = rcar_rst_read_mode_pins(&cpg_mode);
+ if (error)
+ return error;
+
+ cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
+ if (!cpg_pll_config->extal_div) {
+ dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
+ return -EINVAL;
+ }
+
+ return rcar_gen4_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode);
+}
+
+const struct cpg_mssr_info r8a779g0_cpg_mssr_info __initconst = {
+ /* Core Clocks */
+ .core_clks = r8a779g0_core_clks,
+ .num_core_clks = ARRAY_SIZE(r8a779g0_core_clks),
+ .last_dt_core_clk = LAST_DT_CORE_CLK,
+ .num_total_core_clks = MOD_CLK_BASE,
+
+ /* Module Clocks */
+ .mod_clks = r8a779g0_mod_clks,
+ .num_mod_clks = ARRAY_SIZE(r8a779g0_mod_clks),
+ .num_hw_mod_clks = 30 * 32,
+
+ /* Callbacks */
+ .init = r8a779g0_cpg_mssr_init,
+ .cpg_clk_register = rcar_gen4_cpg_clk_register,
+
+ .reg_layout = CLK_REG_LAYOUT_RCAR_GEN4,
+};
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index 5d2c3edbaa14..1a0cdf001b2f 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -853,6 +853,12 @@ static const struct of_device_id cpg_mssr_match[] = {
.compatible = "renesas,r8a779f0-cpg-mssr",
.data = &r8a779f0_cpg_mssr_info,
},
+#endif
+#ifdef CONFIG_CLK_R8A779G0
+ {
+ .compatible = "renesas,r8a779g0-cpg-mssr",
+ .data = &r8a779g0_cpg_mssr_info,
+ },
#endif
{ /* sentinel */ }
};
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h
index 16810dd4e6ac..1c3c057d17f5 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -179,6 +179,7 @@ extern const struct cpg_mssr_info r8a77990_cpg_mssr_info;
extern const struct cpg_mssr_info r8a77995_cpg_mssr_info;
extern const struct cpg_mssr_info r8a779a0_cpg_mssr_info;
extern const struct cpg_mssr_info r8a779f0_cpg_mssr_info;
+extern const struct cpg_mssr_info r8a779g0_cpg_mssr_info;
void __init cpg_mssr_early_init(struct device_node *np,
const struct cpg_mssr_info *info);
--
2.25.1
