diff options
Diffstat (limited to 'drivers/clk/renesas/r9a09g011-cpg.c')
| -rw-r--r-- | drivers/clk/renesas/r9a09g011-cpg.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/clk/renesas/r9a09g011-cpg.c b/drivers/clk/renesas/r9a09g011-cpg.c new file mode 100644 index 000000000000..40693bb85b80 --- /dev/null +++ b/drivers/clk/renesas/r9a09g011-cpg.c @@ -0,0 +1,172 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * RZ/V2M Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2022 Renesas Electronics Corp. + * + * Based on r9a07g044-cpg.c + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> + +#include <dt-bindings/clock/r9a09g011-cpg.h> + +#include "rzg2l-cpg.h" + +#define RZV2M_SAMPLL4_CLK1 0x104 +#define RZV2M_SAMPLL4_CLK2 0x108 + +#define PLL4_CONF (RZV2M_SAMPLL4_CLK1 << 22 | RZV2M_SAMPLL4_CLK2 << 12) + +#define DIV_A DDIV_PACK(0x200, 0, 3) +#define DIV_B DDIV_PACK(0x204, 0, 2) +#define DIV_E DDIV_PACK(0x204, 8, 1) +#define DIV_W DDIV_PACK(0x328, 0, 3) + +#define SEL_B SEL_PLL_PACK(0x214, 0, 1) +#define SEL_E SEL_PLL_PACK(0x214, 2, 1) +#define SEL_W0 SEL_PLL_PACK(0x32C, 0, 1) + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = 0, + + /* External Input Clocks */ + CLK_EXTAL, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_MAIN_24, + CLK_MAIN_2, + CLK_PLL1, + CLK_PLL2, + CLK_PLL2_800, + CLK_PLL2_400, + CLK_PLL2_200, + CLK_PLL2_100, + CLK_PLL4, + CLK_DIV_A, + CLK_DIV_B, + CLK_DIV_E, + CLK_DIV_W, + CLK_SEL_B, + CLK_SEL_B_D2, + CLK_SEL_E, + CLK_SEL_W0, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +/* Divider tables */ +static const struct clk_div_table dtable_diva[] = { + {0, 1}, + {1, 2}, + {2, 3}, + {3, 4}, + {4, 6}, + {5, 12}, + {6, 24}, + {0, 0}, +}; + +static const struct clk_div_table dtable_divb[] = { + {0, 1}, + {1, 2}, + {2, 4}, + {3, 8}, + {0, 0}, +}; + +static const struct clk_div_table dtable_divw[] = { + {0, 6}, + {1, 7}, + {2, 8}, + {3, 9}, + {4, 10}, + {5, 11}, + {6, 12}, + {0, 0}, +}; + +/* Mux clock tables */ +static const char * const sel_b[] = { ".main", ".divb" }; +static const char * const sel_e[] = { ".main", ".dive" }; +static const char * const sel_w[] = { ".main", ".divw" }; + +static const struct cpg_core_clk r9a09g011_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + + /* Internal Core Clocks */ + DEF_FIXED(".main", CLK_MAIN, CLK_EXTAL, 1, 1), + DEF_FIXED(".main_24", CLK_MAIN_24, CLK_MAIN, 1, 2), + DEF_FIXED(".main_2", CLK_MAIN_2, CLK_MAIN, 1, 24), + DEF_FIXED(".pll1", CLK_PLL1, CLK_MAIN_2, 498, 1), + DEF_FIXED(".pll2", CLK_PLL2, CLK_MAIN_2, 800, 1), + DEF_FIXED(".pll2_800", CLK_PLL2_800, CLK_PLL2, 1, 2), + DEF_FIXED(".pll2_400", CLK_PLL2_400, CLK_PLL2_800, 1, 2), + DEF_FIXED(".pll2_200", CLK_PLL2_200, CLK_PLL2_800, 1, 4), + DEF_FIXED(".pll2_100", CLK_PLL2_100, CLK_PLL2_800, 1, 8), + DEF_SAMPLL(".pll4", CLK_PLL4, CLK_MAIN_2, PLL4_CONF), + + DEF_DIV_RO(".diva", CLK_DIV_A, CLK_PLL1, DIV_A, dtable_diva), + DEF_DIV_RO(".divb", CLK_DIV_B, CLK_PLL2_400, DIV_B, dtable_divb), + DEF_DIV_RO(".dive", CLK_DIV_E, CLK_PLL2_100, DIV_E, NULL), + DEF_DIV_RO(".divw", CLK_DIV_W, CLK_PLL4, DIV_W, dtable_divw), + + DEF_MUX_RO(".selb", CLK_SEL_B, SEL_B, sel_b), + DEF_MUX_RO(".sele", CLK_SEL_E, SEL_E, sel_e), + DEF_MUX(".selw0", CLK_SEL_W0, SEL_W0, sel_w), + + DEF_FIXED(".selb_d2", CLK_SEL_B_D2, CLK_SEL_B, 1, 2), +}; + +static const struct rzg2l_mod_clk r9a09g011_mod_clks[] __initconst = { + DEF_MOD("gic", R9A09G011_GIC_CLK, CLK_SEL_B_D2, 0x400, 5), + DEF_COUPLED("eth_axi", R9A09G011_ETH0_CLK_AXI, CLK_PLL2_200, 0x40c, 8), + DEF_COUPLED("eth_chi", R9A09G011_ETH0_CLK_CHI, CLK_PLL2_100, 0x40c, 8), + DEF_MOD("eth_clk_gptp", R9A09G011_ETH0_GPTP_EXT, CLK_PLL2_100, 0x40c, 9), + DEF_MOD("syc_cnt_clk", R9A09G011_SYC_CNT_CLK, CLK_MAIN_24, 0x41c, 12), + DEF_MOD("urt_pclk", R9A09G011_URT_PCLK, CLK_SEL_E, 0x438, 4), + DEF_MOD("urt0_clk", R9A09G011_URT0_CLK, CLK_SEL_W0, 0x438, 5), + DEF_MOD("ca53", R9A09G011_CA53_CLK, CLK_DIV_A, 0x448, 0), +}; + +static const struct rzg2l_reset r9a09g011_resets[] = { + DEF_RST_MON(R9A09G011_ETH0_RST_HW_N, 0x608, 11, 11), + DEF_RST_MON(R9A09G011_SYC_RST_N, 0x610, 9, 13), +}; + +static const unsigned int r9a09g011_crit_mod_clks[] __initconst = { + MOD_CLK_BASE + R9A09G011_CA53_CLK, + MOD_CLK_BASE + R9A09G011_GIC_CLK, + MOD_CLK_BASE + R9A09G011_SYC_CNT_CLK, + MOD_CLK_BASE + R9A09G011_URT_PCLK, +}; + +const struct rzg2l_cpg_info r9a09g011_cpg_info = { + /* Core Clocks */ + .core_clks = r9a09g011_core_clks, + .num_core_clks = ARRAY_SIZE(r9a09g011_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Critical Module Clocks */ + .crit_mod_clks = r9a09g011_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r9a09g011_crit_mod_clks), + + /* Module Clocks */ + .mod_clks = r9a09g011_mod_clks, + .num_mod_clks = ARRAY_SIZE(r9a09g011_mod_clks), + .num_hw_mod_clks = R9A09G011_CA53_CLK + 1, + + /* Resets */ + .resets = r9a09g011_resets, + .num_resets = ARRAY_SIZE(r9a09g011_resets), + + .has_clk_mon_regs = false, +}; |