diff options
Diffstat (limited to 'drivers/clk/renesas/r9a07g044-cpg.c')
| -rw-r--r-- | drivers/clk/renesas/r9a07g044-cpg.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/drivers/clk/renesas/r9a07g044-cpg.c b/drivers/clk/renesas/r9a07g044-cpg.c new file mode 100644 index 000000000000..ae24e0397d3c --- /dev/null +++ b/drivers/clk/renesas/r9a07g044-cpg.c @@ -0,0 +1,142 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * RZ/G2L CPG driver + * + * Copyright (C) 2021 Renesas Electronics Corp. + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> + +#include <dt-bindings/clock/r9a07g044-cpg.h> + +#include "renesas-rzg2l-cpg.h" + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = R9A07G044_OSCCLK, + + /* External Input Clocks */ + CLK_EXTAL, + + /* Internal Core Clocks */ + CLK_OSC_DIV1000, + CLK_PLL1, + CLK_PLL2, + CLK_PLL2_DIV2, + CLK_PLL2_DIV16, + CLK_PLL2_DIV20, + CLK_PLL3, + CLK_PLL3_DIV2, + CLK_PLL3_DIV2_4, + CLK_PLL3_DIV2_4_2, + CLK_PLL3_DIV4, + CLK_PLL4, + CLK_PLL5, + CLK_PLL5_DIV2, + CLK_PLL6, + + /* Module Clocks */ + MOD_CLK_BASE, +}; + +/* Divider tables */ +static const struct clk_div_table dtable_1_32[] = { + {0, 1}, + {1, 2}, + {2, 4}, + {3, 8}, + {4, 32}, + {0, 0}, +}; + +static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + + /* Internal Core Clocks */ + DEF_FIXED(".osc", R9A07G044_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, 133, 2), + DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 133, 2), + + DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2), + DEF_FIXED(".pll2_div16", CLK_PLL2_DIV16, CLK_PLL2, 1, 16), + DEF_FIXED(".pll2_div20", CLK_PLL2_DIV20, CLK_PLL2, 1, 20), + + 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(".pll3_div4", CLK_PLL3_DIV4, CLK_PLL3, 1, 4), + + /* Core output clk */ + DEF_FIXED("I", R9A07G044_CLK_I, CLK_PLL1, 1, 1), + DEF_DIV("P0", R9A07G044_CLK_P0, CLK_PLL2_DIV16, DIVPL2A, + dtable_1_32, CLK_DIVIDER_HIWORD_MASK), + DEF_FIXED("TSU", R9A07G044_CLK_TSU, CLK_PLL2_DIV20, 1, 1), + DEF_DIV("P1", R9A07G044_CLK_P1, CLK_PLL3_DIV2_4, + DIVPL3B, dtable_1_32, CLK_DIVIDER_HIWORD_MASK), + DEF_DIV("P2", R9A07G044_CLK_P2, CLK_PLL3_DIV2_4_2, + DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK), +}; + +static struct rzg2l_mod_clk r9a07g044_mod_clks[] = { + DEF_MOD("gic", R9A07G044_GIC600_GICCLK, R9A07G044_CLK_P1, + 0x514, 0), + DEF_MOD("ia55_pclk", R9A07G044_IA55_PCLK, R9A07G044_CLK_P2, + 0x518, 0), + DEF_MOD("ia55_clk", R9A07G044_IA55_CLK, R9A07G044_CLK_P1, + 0x518, 1), + DEF_MOD("scif0", R9A07G044_SCIF0_CLK_PCK, R9A07G044_CLK_P0, + 0x584, 0), + DEF_MOD("scif1", R9A07G044_SCIF1_CLK_PCK, R9A07G044_CLK_P0, + 0x584, 1), + DEF_MOD("scif2", R9A07G044_SCIF2_CLK_PCK, R9A07G044_CLK_P0, + 0x584, 2), + DEF_MOD("scif3", R9A07G044_SCIF3_CLK_PCK, R9A07G044_CLK_P0, + 0x584, 3), + DEF_MOD("scif4", R9A07G044_SCIF4_CLK_PCK, R9A07G044_CLK_P0, + 0x584, 4), + DEF_MOD("sci0", R9A07G044_SCI0_CLKP, R9A07G044_CLK_P0, + 0x588, 0), +}; + +static struct rzg2l_reset r9a07g044_resets[] = { + DEF_RST(R9A07G044_GIC600_GICRESET_N, 0x814, 0), + DEF_RST(R9A07G044_GIC600_DBG_GICRESET_N, 0x814, 1), + DEF_RST(R9A07G044_IA55_RESETN, 0x818, 0), + DEF_RST(R9A07G044_SCIF0_RST_SYSTEM_N, 0x884, 0), + DEF_RST(R9A07G044_SCIF1_RST_SYSTEM_N, 0x884, 1), + DEF_RST(R9A07G044_SCIF2_RST_SYSTEM_N, 0x884, 2), + DEF_RST(R9A07G044_SCIF3_RST_SYSTEM_N, 0x884, 3), + DEF_RST(R9A07G044_SCIF4_RST_SYSTEM_N, 0x884, 4), + DEF_RST(R9A07G044_SCI0_RST, 0x888, 0), +}; + +static const unsigned int r9a07g044_crit_mod_clks[] __initconst = { + MOD_CLK_BASE + R9A07G044_GIC600_GICCLK, +}; + +const struct rzg2l_cpg_info r9a07g044_cpg_info = { + /* Core Clocks */ + .core_clks = r9a07g044_core_clks, + .num_core_clks = ARRAY_SIZE(r9a07g044_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Critical Module Clocks */ + .crit_mod_clks = r9a07g044_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r9a07g044_crit_mod_clks), + + /* Module Clocks */ + .mod_clks = r9a07g044_mod_clks, + .num_mod_clks = ARRAY_SIZE(r9a07g044_mod_clks), + .num_hw_mod_clks = R9A07G044_TSU_PCLK + 1, + + /* Resets */ + .resets = r9a07g044_resets, + .num_resets = ARRAY_SIZE(r9a07g044_resets), +}; |