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Diffstat (limited to '')
| -rw-r--r-- | drivers/clk/renesas/r9a07g043-cpg.c | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/drivers/clk/renesas/r9a07g043-cpg.c b/drivers/clk/renesas/r9a07g043-cpg.c new file mode 100644 index 000000000..374754651 --- /dev/null +++ b/drivers/clk/renesas/r9a07g043-cpg.c @@ -0,0 +1,352 @@ +// 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_PLL2_DIV2_10, + CLK_PLL3, + CLK_PLL3_400, + CLK_PLL3_533, + CLK_PLL3_DIV2, + CLK_PLL3_DIV2_4, + CLK_PLL3_DIV2_4_2, + CLK_SEL_PLL3_3, + CLK_DIV_PLL3_C, +#ifdef CONFIG_ARM64 + CLK_PLL5, + CLK_PLL5_500, + CLK_PLL5_250, +#endif + CLK_PLL6, + CLK_PLL6_250, + CLK_P1_DIV2, + CLK_PLL2_800, + CLK_PLL2_SDHI_533, + CLK_PLL2_SDHI_400, + CLK_PLL2_SDHI_266, + CLK_SD0_DIV4, + CLK_SD1_DIV4, + + /* 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_pll3_3[] = { ".pll3_533", ".pll3_400" }; +static const char * const sel_pll6_2[] = { ".pll6_250", ".pll5_250" }; +static const char * const sel_shdi[] = { ".clk_533", ".clk_400", ".clk_266" }; + +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(".clk_800", CLK_PLL2_800, CLK_PLL2, 1, 2), + DEF_FIXED(".clk_533", CLK_PLL2_SDHI_533, CLK_PLL2, 1, 3), + DEF_FIXED(".clk_400", CLK_PLL2_SDHI_400, CLK_PLL2_800, 1, 2), + DEF_FIXED(".clk_266", CLK_PLL2_SDHI_266, CLK_PLL2_SDHI_533, 1, 2), + DEF_FIXED(".pll2_div2_8", CLK_PLL2_DIV2_8, CLK_PLL2_DIV2, 1, 8), + DEF_FIXED(".pll2_div2_10", CLK_PLL2_DIV2_10, CLK_PLL2_DIV2, 1, 10), + 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(".pll3_400", CLK_PLL3_400, CLK_PLL3, 1, 4), + DEF_FIXED(".pll3_533", CLK_PLL3_533, CLK_PLL3, 1, 3), + DEF_MUX_RO(".sel_pll3_3", CLK_SEL_PLL3_3, SEL_PLL3_3, sel_pll3_3), + DEF_DIV("divpl3c", CLK_DIV_PLL3_C, CLK_SEL_PLL3_3, DIVPL3C, dtable_1_32), +#ifdef CONFIG_ARM64 + 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), +#endif + 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), + DEF_DIV("P0", R9A07G043_CLK_P0, CLK_PLL2_DIV2_8, DIVPL2A, dtable_1_32), + DEF_FIXED("P0_DIV2", R9A07G043_CLK_P0_DIV2, R9A07G043_CLK_P0, 1, 2), + DEF_FIXED("TSU", R9A07G043_CLK_TSU, CLK_PLL2_DIV2_10, 1, 1), + DEF_DIV("P1", R9A07G043_CLK_P1, CLK_PLL3_DIV2_4, DIVPL3B, dtable_1_32), + 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), + 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), + DEF_FIXED("SPI0", R9A07G043_CLK_SPI0, CLK_DIV_PLL3_C, 1, 2), + DEF_FIXED("SPI1", R9A07G043_CLK_SPI1, CLK_DIV_PLL3_C, 1, 4), + DEF_SD_MUX("SD0", R9A07G043_CLK_SD0, SEL_SDHI0, sel_shdi), + DEF_SD_MUX("SD1", R9A07G043_CLK_SD1, SEL_SDHI1, sel_shdi), + DEF_FIXED("SD0_DIV4", CLK_SD0_DIV4, R9A07G043_CLK_SD0, 1, 4), + DEF_FIXED("SD1_DIV4", CLK_SD1_DIV4, R9A07G043_CLK_SD1, 1, 4), +}; + +static struct rzg2l_mod_clk r9a07g043_mod_clks[] = { +#ifdef CONFIG_ARM64 + 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), +#endif +#ifdef CONFIG_RISCV + DEF_MOD("iax45_pclk", R9A07G043_IAX45_PCLK, R9A07G043_CLK_P2, + 0x518, 0), + DEF_MOD("iax45_clk", R9A07G043_IAX45_CLK, R9A07G043_CLK_P1, + 0x518, 1), +#endif + 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("ostm0_pclk", R9A07G043_OSTM0_PCLK, R9A07G043_CLK_P0, + 0x534, 0), + DEF_MOD("ostm1_pclk", R9A07G043_OSTM1_PCLK, R9A07G043_CLK_P0, + 0x534, 1), + DEF_MOD("ostm2_pclk", R9A07G043_OSTM2_PCLK, R9A07G043_CLK_P0, + 0x534, 2), + DEF_MOD("wdt0_pclk", R9A07G043_WDT0_PCLK, R9A07G043_CLK_P0, + 0x548, 0), + DEF_MOD("wdt0_clk", R9A07G043_WDT0_CLK, R9A07G043_OSCCLK, + 0x548, 1), + DEF_MOD("wdt2_pclk", R9A07G043_WDT2_PCLK, R9A07G043_CLK_P0, + 0x548, 4), + DEF_MOD("wdt2_clk", R9A07G043_WDT2_CLK, R9A07G043_OSCCLK, + 0x548, 5), + DEF_MOD("spi_clk2", R9A07G043_SPI_CLK2, R9A07G043_CLK_SPI1, + 0x550, 0), + DEF_MOD("spi_clk", R9A07G043_SPI_CLK, R9A07G043_CLK_SPI0, + 0x550, 1), + DEF_MOD("sdhi0_imclk", R9A07G043_SDHI0_IMCLK, CLK_SD0_DIV4, + 0x554, 0), + DEF_MOD("sdhi0_imclk2", R9A07G043_SDHI0_IMCLK2, CLK_SD0_DIV4, + 0x554, 1), + DEF_MOD("sdhi0_clk_hs", R9A07G043_SDHI0_CLK_HS, R9A07G043_CLK_SD0, + 0x554, 2), + DEF_MOD("sdhi0_aclk", R9A07G043_SDHI0_ACLK, R9A07G043_CLK_P1, + 0x554, 3), + DEF_MOD("sdhi1_imclk", R9A07G043_SDHI1_IMCLK, CLK_SD1_DIV4, + 0x554, 4), + DEF_MOD("sdhi1_imclk2", R9A07G043_SDHI1_IMCLK2, CLK_SD1_DIV4, + 0x554, 5), + DEF_MOD("sdhi1_clk_hs", R9A07G043_SDHI1_CLK_HS, R9A07G043_CLK_SD1, + 0x554, 6), + DEF_MOD("sdhi1_aclk", R9A07G043_SDHI1_ACLK, R9A07G043_CLK_P1, + 0x554, 7), + DEF_MOD("ssi0_pclk", R9A07G043_SSI0_PCLK2, R9A07G043_CLK_P0, + 0x570, 0), + DEF_MOD("ssi0_sfr", R9A07G043_SSI0_PCLK_SFR, R9A07G043_CLK_P0, + 0x570, 1), + DEF_MOD("ssi1_pclk", R9A07G043_SSI1_PCLK2, R9A07G043_CLK_P0, + 0x570, 2), + DEF_MOD("ssi1_sfr", R9A07G043_SSI1_PCLK_SFR, R9A07G043_CLK_P0, + 0x570, 3), + DEF_MOD("ssi2_pclk", R9A07G043_SSI2_PCLK2, R9A07G043_CLK_P0, + 0x570, 4), + DEF_MOD("ssi2_sfr", R9A07G043_SSI2_PCLK_SFR, R9A07G043_CLK_P0, + 0x570, 5), + DEF_MOD("ssi3_pclk", R9A07G043_SSI3_PCLK2, R9A07G043_CLK_P0, + 0x570, 6), + DEF_MOD("ssi3_sfr", R9A07G043_SSI3_PCLK_SFR, R9A07G043_CLK_P0, + 0x570, 7), + DEF_MOD("usb0_host", R9A07G043_USB_U2H0_HCLK, R9A07G043_CLK_P1, + 0x578, 0), + DEF_MOD("usb1_host", R9A07G043_USB_U2H1_HCLK, R9A07G043_CLK_P1, + 0x578, 1), + DEF_MOD("usb0_func", R9A07G043_USB_U2P_EXR_CPUCLK, R9A07G043_CLK_P1, + 0x578, 2), + DEF_MOD("usb_pclk", R9A07G043_USB_PCLK, R9A07G043_CLK_P1, + 0x578, 3), + DEF_COUPLED("eth0_axi", R9A07G043_ETH0_CLK_AXI, R9A07G043_CLK_M0, + 0x57c, 0), + DEF_COUPLED("eth0_chi", R9A07G043_ETH0_CLK_CHI, R9A07G043_CLK_ZT, + 0x57c, 0), + DEF_COUPLED("eth1_axi", R9A07G043_ETH1_CLK_AXI, R9A07G043_CLK_M0, + 0x57c, 1), + DEF_COUPLED("eth1_chi", R9A07G043_ETH1_CLK_CHI, R9A07G043_CLK_ZT, + 0x57c, 1), + DEF_MOD("i2c0", R9A07G043_I2C0_PCLK, R9A07G043_CLK_P0, + 0x580, 0), + DEF_MOD("i2c1", R9A07G043_I2C1_PCLK, R9A07G043_CLK_P0, + 0x580, 1), + DEF_MOD("i2c2", R9A07G043_I2C2_PCLK, R9A07G043_CLK_P0, + 0x580, 2), + DEF_MOD("i2c3", R9A07G043_I2C3_PCLK, R9A07G043_CLK_P0, + 0x580, 3), + 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("rspi0", R9A07G043_RSPI0_CLKB, R9A07G043_CLK_P0, + 0x590, 0), + DEF_MOD("rspi1", R9A07G043_RSPI1_CLKB, R9A07G043_CLK_P0, + 0x590, 1), + DEF_MOD("rspi2", R9A07G043_RSPI2_CLKB, R9A07G043_CLK_P0, + 0x590, 2), + DEF_MOD("canfd", R9A07G043_CANFD_PCLK, R9A07G043_CLK_P0, + 0x594, 0), + DEF_MOD("gpio", R9A07G043_GPIO_HCLK, R9A07G043_OSCCLK, + 0x598, 0), + DEF_MOD("adc_adclk", R9A07G043_ADC_ADCLK, R9A07G043_CLK_TSU, + 0x5a8, 0), + DEF_MOD("adc_pclk", R9A07G043_ADC_PCLK, R9A07G043_CLK_P0, + 0x5a8, 1), + DEF_MOD("tsu_pclk", R9A07G043_TSU_PCLK, R9A07G043_CLK_TSU, + 0x5ac, 0), +}; + +static struct rzg2l_reset r9a07g043_resets[] = { +#ifdef CONFIG_ARM64 + DEF_RST(R9A07G043_GIC600_GICRESET_N, 0x814, 0), + DEF_RST(R9A07G043_GIC600_DBG_GICRESET_N, 0x814, 1), + DEF_RST(R9A07G043_IA55_RESETN, 0x818, 0), +#endif +#ifdef CONFIG_RISCV + DEF_RST(R9A07G043_IAX45_RESETN, 0x818, 0), +#endif + DEF_RST(R9A07G043_DMAC_ARESETN, 0x82c, 0), + DEF_RST(R9A07G043_DMAC_RST_ASYNC, 0x82c, 1), + DEF_RST(R9A07G043_OSTM0_PRESETZ, 0x834, 0), + DEF_RST(R9A07G043_OSTM1_PRESETZ, 0x834, 1), + DEF_RST(R9A07G043_OSTM2_PRESETZ, 0x834, 2), + DEF_RST(R9A07G043_WDT0_PRESETN, 0x848, 0), + DEF_RST(R9A07G043_WDT2_PRESETN, 0x848, 2), + DEF_RST(R9A07G043_SPI_RST, 0x850, 0), + DEF_RST(R9A07G043_SDHI0_IXRST, 0x854, 0), + DEF_RST(R9A07G043_SDHI1_IXRST, 0x854, 1), + DEF_RST(R9A07G043_SSI0_RST_M2_REG, 0x870, 0), + DEF_RST(R9A07G043_SSI1_RST_M2_REG, 0x870, 1), + DEF_RST(R9A07G043_SSI2_RST_M2_REG, 0x870, 2), + DEF_RST(R9A07G043_SSI3_RST_M2_REG, 0x870, 3), + DEF_RST(R9A07G043_USB_U2H0_HRESETN, 0x878, 0), + DEF_RST(R9A07G043_USB_U2H1_HRESETN, 0x878, 1), + DEF_RST(R9A07G043_USB_U2P_EXL_SYSRST, 0x878, 2), + DEF_RST(R9A07G043_USB_PRESETN, 0x878, 3), + DEF_RST(R9A07G043_ETH0_RST_HW_N, 0x87c, 0), + DEF_RST(R9A07G043_ETH1_RST_HW_N, 0x87c, 1), + DEF_RST(R9A07G043_I2C0_MRST, 0x880, 0), + DEF_RST(R9A07G043_I2C1_MRST, 0x880, 1), + DEF_RST(R9A07G043_I2C2_MRST, 0x880, 2), + DEF_RST(R9A07G043_I2C3_MRST, 0x880, 3), + 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_RSPI0_RST, 0x890, 0), + DEF_RST(R9A07G043_RSPI1_RST, 0x890, 1), + DEF_RST(R9A07G043_RSPI2_RST, 0x890, 2), + DEF_RST(R9A07G043_CANFD_RSTP_N, 0x894, 0), + DEF_RST(R9A07G043_CANFD_RSTC_N, 0x894, 1), + DEF_RST(R9A07G043_GPIO_RSTN, 0x898, 0), + DEF_RST(R9A07G043_GPIO_PORT_RESETN, 0x898, 1), + DEF_RST(R9A07G043_GPIO_SPARE_RESETN, 0x898, 2), + DEF_RST(R9A07G043_ADC_PRESETN, 0x8a8, 0), + DEF_RST(R9A07G043_ADC_ADRST_N, 0x8a8, 1), + DEF_RST(R9A07G043_TSU_PRESETN, 0x8ac, 0), +}; + +static const unsigned int r9a07g043_crit_mod_clks[] __initconst = { +#ifdef CONFIG_ARM64 + MOD_CLK_BASE + R9A07G043_GIC600_GICCLK, + MOD_CLK_BASE + R9A07G043_IA55_CLK, +#endif +#ifdef CONFIG_RISCV + MOD_CLK_BASE + R9A07G043_IAX45_CLK, +#endif + 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), +#ifdef CONFIG_ARM64 + .num_hw_mod_clks = R9A07G043_TSU_PCLK + 1, +#endif +#ifdef CONFIG_RISCV + .num_hw_mod_clks = R9A07G043_IAX45_PCLK + 1, +#endif + + /* Resets */ + .resets = r9a07g043_resets, +#ifdef CONFIG_ARM64 + .num_resets = R9A07G043_TSU_PRESETN + 1, /* Last reset ID + 1 */ +#endif +#ifdef CONFIG_RISCV + .num_resets = R9A07G043_IAX45_RESETN + 1, /* Last reset ID + 1 */ +#endif + + .has_clk_mon_regs = true, +}; 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