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// 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/r9a07g043-cpg.h>
#include "rzg2l-cpg.h"
enum clk_ids {
/* Core Clock Outputs exported to DT */
LAST_DT_CORE_CLK = R9A07G043_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_PLL5_500,
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_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 tables */
static const char * const sel_pll6_2[] = { ".pll6_250", ".pll5_250" };
static const struct cpg_core_clk r9a07g043_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("extal", CLK_EXTAL),
/* Internal Core Clocks */
DEF_FIXED(".osc", R9A07G043_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(".pll5_500", CLK_PLL5_500, CLK_PLL5, 1, 6),
DEF_FIXED(".pll5_250", CLK_PLL5_250, CLK_PLL5_500, 1, 2),
DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6),
DEF_FIXED(".pll6_250", CLK_PLL6_250, CLK_PLL6, 1, 2),
/* Core output clk */
DEF_DIV("I", R9A07G043_CLK_I, CLK_PLL1, DIVPL1A, dtable_1_8,
CLK_DIVIDER_HIWORD_MASK),
DEF_DIV("P0", R9A07G043_CLK_P0, CLK_PLL2_DIV2_8, DIVPL2A,
dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
DEF_DIV("P1", R9A07G043_CLK_P1, CLK_PLL3_DIV2_4,
DIVPL3B, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A07G043_CLK_P1, 1, 2),
DEF_DIV("P2", R9A07G043_CLK_P2, CLK_PLL3_DIV2_4_2,
DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
DEF_FIXED("M0", R9A07G043_CLK_M0, CLK_PLL3_DIV2_4, 1, 1),
DEF_FIXED("ZT", R9A07G043_CLK_ZT, CLK_PLL3_DIV2_4_2, 1, 1),
DEF_MUX("HP", R9A07G043_CLK_HP, SEL_PLL6_2,
sel_pll6_2, ARRAY_SIZE(sel_pll6_2), 0, CLK_MUX_HIWORD_MASK),
};
static struct rzg2l_mod_clk r9a07g043_mod_clks[] = {
DEF_MOD("gic", R9A07G043_GIC600_GICCLK, R9A07G043_CLK_P1,
0x514, 0),
DEF_MOD("ia55_pclk", R9A07G043_IA55_PCLK, R9A07G043_CLK_P2,
0x518, 0),
DEF_MOD("ia55_clk", R9A07G043_IA55_CLK, R9A07G043_CLK_P1,
0x518, 1),
DEF_MOD("dmac_aclk", R9A07G043_DMAC_ACLK, R9A07G043_CLK_P1,
0x52c, 0),
DEF_MOD("dmac_pclk", R9A07G043_DMAC_PCLK, CLK_P1_DIV2,
0x52c, 1),
DEF_MOD("scif0", R9A07G043_SCIF0_CLK_PCK, R9A07G043_CLK_P0,
0x584, 0),
DEF_MOD("scif1", R9A07G043_SCIF1_CLK_PCK, R9A07G043_CLK_P0,
0x584, 1),
DEF_MOD("scif2", R9A07G043_SCIF2_CLK_PCK, R9A07G043_CLK_P0,
0x584, 2),
DEF_MOD("scif3", R9A07G043_SCIF3_CLK_PCK, R9A07G043_CLK_P0,
0x584, 3),
DEF_MOD("scif4", R9A07G043_SCIF4_CLK_PCK, R9A07G043_CLK_P0,
0x584, 4),
DEF_MOD("sci0", R9A07G043_SCI0_CLKP, R9A07G043_CLK_P0,
0x588, 0),
DEF_MOD("sci1", R9A07G043_SCI1_CLKP, R9A07G043_CLK_P0,
0x588, 1),
DEF_MOD("gpio", R9A07G043_GPIO_HCLK, R9A07G043_OSCCLK,
0x598, 0),
};
static struct rzg2l_reset r9a07g043_resets[] = {
DEF_RST(R9A07G043_GIC600_GICRESET_N, 0x814, 0),
DEF_RST(R9A07G043_GIC600_DBG_GICRESET_N, 0x814, 1),
DEF_RST(R9A07G043_IA55_RESETN, 0x818, 0),
DEF_RST(R9A07G043_DMAC_ARESETN, 0x82c, 0),
DEF_RST(R9A07G043_DMAC_RST_ASYNC, 0x82c, 1),
DEF_RST(R9A07G043_SCIF0_RST_SYSTEM_N, 0x884, 0),
DEF_RST(R9A07G043_SCIF1_RST_SYSTEM_N, 0x884, 1),
DEF_RST(R9A07G043_SCIF2_RST_SYSTEM_N, 0x884, 2),
DEF_RST(R9A07G043_SCIF3_RST_SYSTEM_N, 0x884, 3),
DEF_RST(R9A07G043_SCIF4_RST_SYSTEM_N, 0x884, 4),
DEF_RST(R9A07G043_SCI0_RST, 0x888, 0),
DEF_RST(R9A07G043_SCI1_RST, 0x888, 1),
DEF_RST(R9A07G043_GPIO_RSTN, 0x898, 0),
DEF_RST(R9A07G043_GPIO_PORT_RESETN, 0x898, 1),
DEF_RST(R9A07G043_GPIO_SPARE_RESETN, 0x898, 2),
};
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,
};
const struct rzg2l_cpg_info r9a07g043_cpg_info = {
/* Core Clocks */
.core_clks = r9a07g043_core_clks,
.num_core_clks = ARRAY_SIZE(r9a07g043_core_clks),
.last_dt_core_clk = LAST_DT_CORE_CLK,
.num_total_core_clks = MOD_CLK_BASE,
/* Critical Module Clocks */
.crit_mod_clks = r9a07g043_crit_mod_clks,
.num_crit_mod_clks = ARRAY_SIZE(r9a07g043_crit_mod_clks),
/* Module Clocks */
.mod_clks = r9a07g043_mod_clks,
.num_mod_clks = ARRAY_SIZE(r9a07g043_mod_clks),
.num_hw_mod_clks = R9A07G043_TSU_PCLK + 1,
/* Resets */
.resets = r9a07g043_resets,
.num_resets = R9A07G043_TSU_PRESETN + 1, /* Last reset ID + 1 */
};
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