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// SPDX-License-Identifier: GPL-2.0
/*
* RZ/G3S CPG driver
*
* Copyright (C) 2023 Renesas Electronics Corp.
*/
#include <linux/clk-provider.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <dt-bindings/clock/r9a08g045-cpg.h>
#include "rzg2l-cpg.h"
/* RZ/G3S Specific registers. */
#define G3S_CPG_PL2_DDIV (0x204)
#define G3S_CPG_SDHI_DDIV (0x218)
#define G3S_CPG_PLL_DSEL (0x240)
#define G3S_CPG_SDHI_DSEL (0x244)
#define G3S_CLKDIVSTATUS (0x280)
#define G3S_CLKSELSTATUS (0x284)
/* RZ/G3S Specific division configuration. */
#define G3S_DIVPL2B DDIV_PACK(G3S_CPG_PL2_DDIV, 4, 3)
#define G3S_DIV_SDHI0 DDIV_PACK(G3S_CPG_SDHI_DDIV, 0, 1)
#define G3S_DIV_SDHI1 DDIV_PACK(G3S_CPG_SDHI_DDIV, 4, 1)
#define G3S_DIV_SDHI2 DDIV_PACK(G3S_CPG_SDHI_DDIV, 8, 1)
/* RZ/G3S Clock status configuration. */
#define G3S_DIVPL1A_STS DDIV_PACK(G3S_CLKDIVSTATUS, 0, 1)
#define G3S_DIVPL2B_STS DDIV_PACK(G3S_CLKDIVSTATUS, 5, 1)
#define G3S_DIVPL3A_STS DDIV_PACK(G3S_CLKDIVSTATUS, 8, 1)
#define G3S_DIVPL3B_STS DDIV_PACK(G3S_CLKDIVSTATUS, 9, 1)
#define G3S_DIVPL3C_STS DDIV_PACK(G3S_CLKDIVSTATUS, 10, 1)
#define G3S_DIV_SDHI0_STS DDIV_PACK(G3S_CLKDIVSTATUS, 24, 1)
#define G3S_DIV_SDHI1_STS DDIV_PACK(G3S_CLKDIVSTATUS, 25, 1)
#define G3S_DIV_SDHI2_STS DDIV_PACK(G3S_CLKDIVSTATUS, 26, 1)
#define G3S_SEL_PLL4_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 6, 1)
#define G3S_SEL_SDHI0_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 16, 1)
#define G3S_SEL_SDHI1_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 17, 1)
#define G3S_SEL_SDHI2_STS SEL_PLL_PACK(G3S_CLKSELSTATUS, 18, 1)
/* RZ/G3S Specific clocks select. */
#define G3S_SEL_PLL4 SEL_PLL_PACK(G3S_CPG_PLL_DSEL, 6, 1)
#define G3S_SEL_SDHI0 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 0, 2)
#define G3S_SEL_SDHI1 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 4, 2)
#define G3S_SEL_SDHI2 SEL_PLL_PACK(G3S_CPG_SDHI_DSEL, 8, 2)
/* PLL 1/4/6 configuration registers macro. */
#define G3S_PLL146_CONF(clk1, clk2) ((clk1) << 22 | (clk2) << 12)
#define DEF_G3S_MUX(_name, _id, _conf, _parent_names, _mux_flags, _clk_flags) \
DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = (_conf), \
.parent_names = (_parent_names), \
.num_parents = ARRAY_SIZE((_parent_names)), \
.mux_flags = CLK_MUX_HIWORD_MASK | (_mux_flags), \
.flag = (_clk_flags))
enum clk_ids {
/* Core Clock Outputs exported to DT */
LAST_DT_CORE_CLK = R9A08G045_SWD,
/* External Input Clocks */
CLK_EXTAL,
/* Internal Core Clocks */
CLK_OSC_DIV1000,
CLK_PLL1,
CLK_PLL2,
CLK_PLL2_DIV2,
CLK_PLL2_DIV2_8,
CLK_PLL2_DIV6,
CLK_PLL3,
CLK_PLL3_DIV2,
CLK_PLL3_DIV2_4,
CLK_PLL3_DIV2_8,
CLK_PLL3_DIV6,
CLK_PLL4,
CLK_PLL6,
CLK_PLL6_DIV2,
CLK_SEL_SDHI0,
CLK_SEL_SDHI1,
CLK_SEL_SDHI2,
CLK_SEL_PLL4,
CLK_P1_DIV2,
CLK_P3_DIV2,
CLK_SD0_DIV4,
CLK_SD1_DIV4,
CLK_SD2_DIV4,
/* Module Clocks */
MOD_CLK_BASE,
};
/* Divider tables */
static const struct clk_div_table dtable_1_2[] = {
{ 0, 1 },
{ 1, 2 },
{ 0, 0 },
};
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 },
};
/* Mux clock names tables. */
static const char * const sel_sdhi[] = { ".pll2_div2", ".pll6", ".pll2_div6" };
static const char * const sel_pll4[] = { ".osc_div1000", ".pll4" };
/* Mux clock indices tables. */
static const u32 mtable_sd[] = { 0, 2, 3 };
static const u32 mtable_pll4[] = { 0, 1 };
static const struct cpg_core_clk r9a08g045_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("extal", CLK_EXTAL),
/* Internal Core Clocks */
DEF_FIXED(".osc_div1000", CLK_OSC_DIV1000, CLK_EXTAL, 1, 1000),
DEF_G3S_PLL(".pll1", CLK_PLL1, CLK_EXTAL, G3S_PLL146_CONF(0x4, 0x8)),
DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 200, 3),
DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 200, 3),
DEF_FIXED(".pll4", CLK_PLL4, CLK_EXTAL, 100, 3),
DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6),
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(".pll2_div6", CLK_PLL2_DIV6, CLK_PLL2, 1, 6),
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_8", CLK_PLL3_DIV2_8, CLK_PLL3_DIV2, 1, 8),
DEF_FIXED(".pll3_div6", CLK_PLL3_DIV6, CLK_PLL3, 1, 6),
DEF_FIXED(".pll6_div2", CLK_PLL6_DIV2, CLK_PLL6, 1, 2),
DEF_SD_MUX(".sel_sd0", CLK_SEL_SDHI0, G3S_SEL_SDHI0, G3S_SEL_SDHI0_STS, sel_sdhi,
mtable_sd, 0, NULL),
DEF_SD_MUX(".sel_sd1", CLK_SEL_SDHI1, G3S_SEL_SDHI1, G3S_SEL_SDHI1_STS, sel_sdhi,
mtable_sd, 0, NULL),
DEF_SD_MUX(".sel_sd2", CLK_SEL_SDHI2, G3S_SEL_SDHI2, G3S_SEL_SDHI2_STS, sel_sdhi,
mtable_sd, 0, NULL),
DEF_SD_MUX(".sel_pll4", CLK_SEL_PLL4, G3S_SEL_PLL4, G3S_SEL_PLL4_STS, sel_pll4,
mtable_pll4, CLK_SET_PARENT_GATE, NULL),
/* Core output clk */
DEF_G3S_DIV("I", R9A08G045_CLK_I, CLK_PLL1, DIVPL1A, G3S_DIVPL1A_STS, dtable_1_8,
0, 0, 0, NULL),
DEF_G3S_DIV("P0", R9A08G045_CLK_P0, CLK_PLL2_DIV2_8, G3S_DIVPL2B, G3S_DIVPL2B_STS,
dtable_1_32, 0, 0, 0, NULL),
DEF_G3S_DIV("SD0", R9A08G045_CLK_SD0, CLK_SEL_SDHI0, G3S_DIV_SDHI0, G3S_DIV_SDHI0_STS,
dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT,
rzg3s_cpg_div_clk_notifier),
DEF_G3S_DIV("SD1", R9A08G045_CLK_SD1, CLK_SEL_SDHI1, G3S_DIV_SDHI1, G3S_DIV_SDHI1_STS,
dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT,
rzg3s_cpg_div_clk_notifier),
DEF_G3S_DIV("SD2", R9A08G045_CLK_SD2, CLK_SEL_SDHI2, G3S_DIV_SDHI2, G3S_DIV_SDHI2_STS,
dtable_1_2, 800000000UL, 500000000UL, CLK_SET_RATE_PARENT,
rzg3s_cpg_div_clk_notifier),
DEF_FIXED(".sd0_div4", CLK_SD0_DIV4, R9A08G045_CLK_SD0, 1, 4),
DEF_FIXED(".sd1_div4", CLK_SD1_DIV4, R9A08G045_CLK_SD1, 1, 4),
DEF_FIXED(".sd2_div4", CLK_SD2_DIV4, R9A08G045_CLK_SD2, 1, 4),
DEF_FIXED("M0", R9A08G045_CLK_M0, CLK_PLL3_DIV2_4, 1, 1),
DEF_G3S_DIV("P1", R9A08G045_CLK_P1, CLK_PLL3_DIV2_4, DIVPL3A, G3S_DIVPL3A_STS,
dtable_1_32, 0, 0, 0, NULL),
DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A08G045_CLK_P1, 1, 2),
DEF_G3S_DIV("P2", R9A08G045_CLK_P2, CLK_PLL3_DIV2_8, DIVPL3B, G3S_DIVPL3B_STS,
dtable_1_32, 0, 0, 0, NULL),
DEF_G3S_DIV("P3", R9A08G045_CLK_P3, CLK_PLL3_DIV2_4, DIVPL3C, G3S_DIVPL3C_STS,
dtable_1_32, 0, 0, 0, NULL),
DEF_FIXED("P3_DIV2", CLK_P3_DIV2, R9A08G045_CLK_P3, 1, 2),
DEF_FIXED("S0", R9A08G045_CLK_S0, CLK_SEL_PLL4, 1, 2),
DEF_FIXED("OSC", R9A08G045_OSCCLK, CLK_EXTAL, 1, 1),
DEF_FIXED("OSC2", R9A08G045_OSCCLK2, CLK_EXTAL, 1, 3),
};
static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = {
DEF_MOD("gic_gicclk", R9A08G045_GIC600_GICCLK, R9A08G045_CLK_P1, 0x514, 0),
DEF_MOD("ia55_clk", R9A08G045_IA55_CLK, R9A08G045_CLK_P1, 0x518, 1),
DEF_MOD("dmac_aclk", R9A08G045_DMAC_ACLK, R9A08G045_CLK_P3, 0x52c, 0),
DEF_MOD("sdhi0_imclk", R9A08G045_SDHI0_IMCLK, CLK_SD0_DIV4, 0x554, 0),
DEF_MOD("sdhi0_imclk2", R9A08G045_SDHI0_IMCLK2, CLK_SD0_DIV4, 0x554, 1),
DEF_MOD("sdhi0_clk_hs", R9A08G045_SDHI0_CLK_HS, R9A08G045_CLK_SD0, 0x554, 2),
DEF_MOD("sdhi0_aclk", R9A08G045_SDHI0_ACLK, R9A08G045_CLK_P1, 0x554, 3),
DEF_MOD("sdhi1_imclk", R9A08G045_SDHI1_IMCLK, CLK_SD1_DIV4, 0x554, 4),
DEF_MOD("sdhi1_imclk2", R9A08G045_SDHI1_IMCLK2, CLK_SD1_DIV4, 0x554, 5),
DEF_MOD("sdhi1_clk_hs", R9A08G045_SDHI1_CLK_HS, R9A08G045_CLK_SD1, 0x554, 6),
DEF_MOD("sdhi1_aclk", R9A08G045_SDHI1_ACLK, R9A08G045_CLK_P1, 0x554, 7),
DEF_MOD("sdhi2_imclk", R9A08G045_SDHI2_IMCLK, CLK_SD2_DIV4, 0x554, 8),
DEF_MOD("sdhi2_imclk2", R9A08G045_SDHI2_IMCLK2, CLK_SD2_DIV4, 0x554, 9),
DEF_MOD("sdhi2_clk_hs", R9A08G045_SDHI2_CLK_HS, R9A08G045_CLK_SD2, 0x554, 10),
DEF_MOD("sdhi2_aclk", R9A08G045_SDHI2_ACLK, R9A08G045_CLK_P1, 0x554, 11),
DEF_MOD("scif0_clk_pck", R9A08G045_SCIF0_CLK_PCK, R9A08G045_CLK_P0, 0x584, 0),
DEF_MOD("gpio_hclk", R9A08G045_GPIO_HCLK, R9A08G045_OSCCLK, 0x598, 0),
};
static const struct rzg2l_reset r9a08g045_resets[] = {
DEF_RST(R9A08G045_GIC600_GICRESET_N, 0x814, 0),
DEF_RST(R9A08G045_GIC600_DBG_GICRESET_N, 0x814, 1),
DEF_RST(R9A08G045_SDHI0_IXRST, 0x854, 0),
DEF_RST(R9A08G045_SDHI1_IXRST, 0x854, 1),
DEF_RST(R9A08G045_SDHI2_IXRST, 0x854, 2),
DEF_RST(R9A08G045_SCIF0_RST_SYSTEM_N, 0x884, 0),
DEF_RST(R9A08G045_GPIO_RSTN, 0x898, 0),
DEF_RST(R9A08G045_GPIO_PORT_RESETN, 0x898, 1),
DEF_RST(R9A08G045_GPIO_SPARE_RESETN, 0x898, 2),
};
static const unsigned int r9a08g045_crit_mod_clks[] __initconst = {
MOD_CLK_BASE + R9A08G045_GIC600_GICCLK,
MOD_CLK_BASE + R9A08G045_IA55_CLK,
MOD_CLK_BASE + R9A08G045_DMAC_ACLK,
};
const struct rzg2l_cpg_info r9a08g045_cpg_info = {
/* Core Clocks */
.core_clks = r9a08g045_core_clks,
.num_core_clks = ARRAY_SIZE(r9a08g045_core_clks),
.last_dt_core_clk = LAST_DT_CORE_CLK,
.num_total_core_clks = MOD_CLK_BASE,
/* Critical Module Clocks */
.crit_mod_clks = r9a08g045_crit_mod_clks,
.num_crit_mod_clks = ARRAY_SIZE(r9a08g045_crit_mod_clks),
/* Module Clocks */
.mod_clks = r9a08g045_mod_clks,
.num_mod_clks = ARRAY_SIZE(r9a08g045_mod_clks),
.num_hw_mod_clks = R9A08G045_VBAT_BCLK + 1,
/* Resets */
.resets = r9a08g045_resets,
.num_resets = R9A08G045_VBAT_BRESETN + 1, /* Last reset ID + 1 */
.has_clk_mon_regs = true,
};
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