[PATCH v3 4/8] Add initialization information for PLLs and clock multiplexers

Arnaud Minier posted 8 patches 10 months ago
Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Arnaud Minier <arnaud.minier@telecom-paris.fr>, "Inès Varhol" <ines.varhol@telecom-paris.fr>, Alistair Francis <alistair@alistair23.me>, Thomas Huth <thuth@redhat.com>, Laurent Vivier <lvivier@redhat.com>
There is a newer version of this series
[PATCH v3 4/8] Add initialization information for PLLs and clock multiplexers
Posted by Arnaud Minier 10 months ago
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
---
 hw/misc/stm32l4x5_rcc.c                   |  69 ++-
 include/hw/misc/stm32l4x5_rcc_internals.h | 707 ++++++++++++++++++++++
 2 files changed, 774 insertions(+), 2 deletions(-)

diff --git a/hw/misc/stm32l4x5_rcc.c b/hw/misc/stm32l4x5_rcc.c
index 771b566c88..c2df70ab37 100644
--- a/hw/misc/stm32l4x5_rcc.c
+++ b/hw/misc/stm32l4x5_rcc.c
@@ -608,21 +608,79 @@ static void stm32l4x5_rcc_init(Object *obj)
     qdev_init_clocks(DEVICE(s), stm32l4x5_rcc_clocks);
 
     for (i = 0; i < RCC_NUM_PLL; i++) {
-        object_initialize_child(obj, "pll[*]",
+        object_initialize_child(obj, PLL_INIT_INFO[i].name,
                                 &s->plls[i], TYPE_RCC_PLL);
+        set_pll_init_info(s, &s->plls[i], i);
     }
 
     for (i = 0; i < RCC_NUM_CLOCK_MUX; i++) {
+        char *alias;
 
-        object_initialize_child(obj, "clock[*]",
+        object_initialize_child(obj, CLOCK_MUX_INIT_INFO[i].name,
                                 &s->clock_muxes[i],
                                 TYPE_RCC_CLOCK_MUX);
+        set_clock_mux_init_info(s, &s->clock_muxes[i], i);
 
+        if (!CLOCK_MUX_INIT_INFO[i].hidden) {
+            /* Expose muxes output as RCC outputs */
+            alias = g_strdup_printf("%s-out", CLOCK_MUX_INIT_INFO[i].name);
+            qdev_alias_clock(DEVICE(&s->clock_muxes[i]), "out", DEVICE(obj), alias);
+            g_free(alias);
+        }
     }
 
     s->gnd = clock_new(obj, "gnd");
 }
 
+static void connect_mux_sources(Stm32l4x5RccState *s,
+                                RccClockMuxState *mux,
+                                const RccClockMuxSource *clk_mapping)
+{
+    size_t i;
+
+    Clock * const CLK_SRC_MAPPING[] = {
+        [RCC_CLOCK_MUX_SRC_GND] = s->gnd,
+        [RCC_CLOCK_MUX_SRC_HSI] = s->hsi16_rc,
+        [RCC_CLOCK_MUX_SRC_HSE] = s->hse,
+        [RCC_CLOCK_MUX_SRC_MSI] = s->msi_rc,
+        [RCC_CLOCK_MUX_SRC_LSI] = s->lsi_rc,
+        [RCC_CLOCK_MUX_SRC_LSE] = s->lse_crystal,
+        [RCC_CLOCK_MUX_SRC_SAI1_EXTCLK] = s->sai1_extclk,
+        [RCC_CLOCK_MUX_SRC_SAI2_EXTCLK] = s->sai2_extclk,
+        [RCC_CLOCK_MUX_SRC_PLL] =
+            s->plls[RCC_PLL_PLL].channels[RCC_PLL_CHANNEL_PLLCLK],
+        [RCC_CLOCK_MUX_SRC_PLLSAI1] =
+            s->plls[RCC_PLL_PLLSAI1].channels[RCC_PLLSAI1_CHANNEL_PLLSAI1CLK],
+        [RCC_CLOCK_MUX_SRC_PLLSAI2] =
+            s->plls[RCC_PLL_PLLSAI2].channels[RCC_PLLSAI2_CHANNEL_PLLSAI2CLK],
+        [RCC_CLOCK_MUX_SRC_PLLSAI3] =
+            s->plls[RCC_PLL_PLL].channels[RCC_PLL_CHANNEL_PLLSAI3CLK],
+        [RCC_CLOCK_MUX_SRC_PLL48M1] =
+            s->plls[RCC_PLL_PLL].channels[RCC_PLL_CHANNEL_PLL48M1CLK],
+        [RCC_CLOCK_MUX_SRC_PLL48M2] =
+            s->plls[RCC_PLL_PLLSAI1].channels[RCC_PLLSAI1_CHANNEL_PLL48M2CLK],
+        [RCC_CLOCK_MUX_SRC_PLLADC1] =
+            s->plls[RCC_PLL_PLLSAI1].channels[RCC_PLLSAI1_CHANNEL_PLLADC1CLK],
+        [RCC_CLOCK_MUX_SRC_PLLADC2] =
+            s->plls[RCC_PLL_PLLSAI2] .channels[RCC_PLLSAI2_CHANNEL_PLLADC2CLK],
+        [RCC_CLOCK_MUX_SRC_SYSCLK] = s->clock_muxes[RCC_CLOCK_MUX_SYSCLK].out,
+        [RCC_CLOCK_MUX_SRC_HCLK] = s->clock_muxes[RCC_CLOCK_MUX_HCLK].out,
+        [RCC_CLOCK_MUX_SRC_PCLK1] = s->clock_muxes[RCC_CLOCK_MUX_PCLK1].out,
+        [RCC_CLOCK_MUX_SRC_PCLK2] = s->clock_muxes[RCC_CLOCK_MUX_PCLK2].out,
+        [RCC_CLOCK_MUX_SRC_HSE_OVER_32] = s->clock_muxes[RCC_CLOCK_MUX_HSE_OVER_32].out,
+        [RCC_CLOCK_MUX_SRC_LCD_AND_RTC_COMMON] =
+            s->clock_muxes[RCC_CLOCK_MUX_LCD_AND_RTC_COMMON].out,
+    };
+
+    assert(ARRAY_SIZE(CLK_SRC_MAPPING) == RCC_CLOCK_MUX_SRC_NUMBER);
+
+    for (i = 0; i < RCC_NUM_CLOCK_MUX_SRC; i++) {
+        RccClockMuxSource mapping = clk_mapping[i];
+        clock_set_source(mux->srcs[i], CLK_SRC_MAPPING[mapping]);
+    }
+}
+
+
 static const VMStateDescription vmstate_stm32l4x5_rcc = {
     .name = TYPE_STM32L4X5_RCC,
     .version_id = 1,
@@ -688,11 +746,17 @@ static void stm32l4x5_rcc_realize(DeviceState *dev, Error **errp)
     for (i = 0; i < RCC_NUM_CLOCK_MUX; i++) {
         RccClockMuxState *clock_mux = &s->clock_muxes[i];
 
+        connect_mux_sources(s, clock_mux, CLOCK_MUX_INIT_INFO[i].src_mapping);
+
         if (!qdev_realize(DEVICE(clock_mux), NULL, errp)) {
             return;
         }
     }
 
+    /*
+     * Start clocks after everything is connected
+     * to propagate the frequencies along the tree.
+     */
     clock_update_hz(s->msi_rc, MSI_DEFAULT_FRQ);
     clock_update_hz(s->sai1_extclk, s->sai1_extclk_frequency);
     clock_update_hz(s->sai2_extclk, s->sai2_extclk_frequency);
@@ -726,6 +790,7 @@ static void stm32l4x5_rcc_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     ResettableClass *rc = RESETTABLE_CLASS(klass);
 
+    assert(ARRAY_SIZE(CLOCK_MUX_INIT_INFO) == RCC_NUM_CLOCK_MUX);
 
     rc->phases.hold = stm32l4x5_rcc_reset_hold;
     device_class_set_props(dc, stm32l4x5_rcc_properties);
diff --git a/include/hw/misc/stm32l4x5_rcc_internals.h b/include/hw/misc/stm32l4x5_rcc_internals.h
index a9da5e3be7..c73e20ae01 100644
--- a/include/hw/misc/stm32l4x5_rcc_internals.h
+++ b/include/hw/misc/stm32l4x5_rcc_internals.h
@@ -334,4 +334,711 @@ typedef enum RccClockMuxSource {
     RCC_CLOCK_MUX_SRC_NUMBER,
 } RccClockMuxSource;
 
+/* PLL init info */
+typedef struct PllInitInfo {
+    const char *name;
+
+    const char *channel_name[RCC_NUM_CHANNEL_PLL_OUT];
+    bool channel_exists[RCC_NUM_CHANNEL_PLL_OUT];
+    uint32_t default_channel_divider[RCC_NUM_CHANNEL_PLL_OUT];
+
+    RccClockMuxSource src_mapping[RCC_NUM_CLOCK_MUX_SRC];
+} PllInitInfo;
+
+static const PllInitInfo PLL_INIT_INFO[] = {
+    [RCC_PLL_PLL] = {
+        .name = "pll",
+        .channel_name = {
+            "pllsai3clk",
+            "pll48m1clk",
+            "pllclk"
+        },
+        .channel_exists = {
+            true, true, true
+        },
+        /* From PLLCFGR register documentation */
+        .default_channel_divider = {
+            7, 2, 2
+        }
+    },
+    [RCC_PLL_PLLSAI1] = {
+        .name = "pllsai1",
+        .channel_name = {
+            "pllsai1clk",
+            "pll48m2clk",
+            "plladc1clk"
+        },
+        .channel_exists = {
+            true, true, true
+        },
+        /* From PLLSAI1CFGR register documentation */
+        .default_channel_divider = {
+            7, 2, 2
+        }
+    },
+    [RCC_PLL_PLLSAI2] = {
+        .name = "pllsai2",
+        .channel_name = {
+            "pllsai2clk",
+            NULL,
+            "plladc2clk"
+        },
+        .channel_exists = {
+            true, false, true
+        },
+        /* From PLLSAI2CFGR register documentation */
+        .default_channel_divider = {
+            7, 0, 2
+        }
+    }
+};
+
+static inline void set_pll_init_info(Stm32l4x5RccState *s,
+                                     RccPllState *pll,
+                                     RccPll id)
+{
+    int i;
+
+    pll->id = id;
+    pll->vco_multiplier = 1;
+    for (i = 0; i < RCC_NUM_CHANNEL_PLL_OUT; i++) {
+        pll->channel_enabled[i] = false;
+        pll->channel_exists[i] = PLL_INIT_INFO[id].channel_exists[i];
+        pll->channel_divider[i] = PLL_INIT_INFO[id].default_channel_divider[i];
+    }
+}
+
+/* Clock mux init info */
+typedef struct ClockMuxInitInfo {
+    const char *name;
+
+    uint32_t multiplier;
+    uint32_t divider;
+    bool enabled;
+    /* If this is true, the clock will not be exposed outside of the device */
+    bool hidden;
+
+    RccClockMuxSource src_mapping[RCC_NUM_CLOCK_MUX_SRC];
+} ClockMuxInitInfo;
+
+#define FILL_DEFAULT_FACTOR \
+    .multiplier = 1, \
+    .divider =  1
+
+#define FILL_DEFAULT_INIT_ENABLED \
+    FILL_DEFAULT_FACTOR, \
+    .enabled = true
+
+#define FILL_DEFAULT_INIT_DISABLED \
+    FILL_DEFAULT_FACTOR, \
+    .enabled = false
+
+
+static const ClockMuxInitInfo CLOCK_MUX_INIT_INFO[] = {
+    [RCC_CLOCK_MUX_SYSCLK] = {
+        .name = "sysclk",
+        /* Same mapping as: CFGR_SW */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_MSI,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_HSE,
+            RCC_CLOCK_MUX_SRC_PLL,
+        },
+        .hidden = true,
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+    [RCC_CLOCK_MUX_PLL_INPUT] = {
+        .name = "pll-input",
+        /* Same mapping as: PLLCFGR_PLLSRC */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_MSI,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_HSE,
+        },
+        .hidden = true,
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+    [RCC_CLOCK_MUX_HCLK] = {
+        .name = "hclk",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        .hidden = true,
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+    [RCC_CLOCK_MUX_PCLK1] = {
+        .name = "pclk1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_HCLK,
+        },
+        .hidden = true,
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+    [RCC_CLOCK_MUX_PCLK2] = {
+        .name = "pclk2",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_HCLK,
+        },
+        .hidden = true,
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+    [RCC_CLOCK_MUX_HSE_OVER_32] = {
+        .name = "hse-divided-by-32",
+        .multiplier = 1,
+        .divider = 32,
+        .enabled = true,
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_HSE,
+        },
+        .hidden = true,
+    },
+    [RCC_CLOCK_MUX_LCD_AND_RTC_COMMON] = {
+        .name = "lcd-and-rtc-common-mux",
+        /* Same mapping as: BDCR_RTCSEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_GND,
+            RCC_CLOCK_MUX_SRC_LSE,
+            RCC_CLOCK_MUX_SRC_LSI,
+            RCC_CLOCK_MUX_SRC_HSE_OVER_32,
+        },
+        .hidden = true,
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+    /* From now on, muxes with a publicly available output */
+    [RCC_CLOCK_MUX_CORTEX_REFCLK] = {
+        .name = "cortex-refclk",
+        .multiplier = 1,
+        /* REFCLK is always HCLK/8 */
+        .divider = 8,
+        .enabled = true,
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_HCLK,
+        }
+    },
+    [RCC_CLOCK_MUX_USART1] = {
+        .name = "usart1",
+        /* Same mapping as: CCIPR_USART1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_USART2] = {
+        .name = "usart2",
+        /* Same mapping as: CCIPR_USART2SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_USART3] = {
+        .name = "usart3",
+        /* Same mapping as: CCIPR_USART3SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_UART4] = {
+        .name = "uart4",
+        /* Same mapping as: CCIPR_UART4SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_UART5] = {
+        .name = "uart5",
+        /* Same mapping as: CCIPR_UART5SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_LPUART1] = {
+        .name = "lpuart1",
+        /* Same mapping as: CCIPR_LPUART1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_I2C1] = {
+        .name = "i2c1",
+        /* Same mapping as: CCIPR_I2C1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_I2C2] = {
+        .name = "i2c2",
+        /* Same mapping as: CCIPR_I2C2SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_I2C3] = {
+        .name = "i2c3",
+        /* Same mapping as: CCIPR_I2C3SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_HSI,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_LPTIM1] = {
+        .name = "lptim1",
+        /* Same mapping as: CCIPR_LPTIM1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_LSI,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_LPTIM2] = {
+        .name = "lptim2",
+        /* Same mapping as: CCIPR_LPTIM2SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_LSI,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SWPMI1] = {
+        .name = "swpmi1",
+        /* Same mapping as: CCIPR_SWPMI1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+            RCC_CLOCK_MUX_SRC_HSI,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_MCO] = {
+        .name = "mco",
+        /* Same mapping as: CFGR_MCOSEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+            RCC_CLOCK_MUX_SRC_MSI,
+            RCC_CLOCK_MUX_SRC_HSI,
+            RCC_CLOCK_MUX_SRC_HSE,
+            RCC_CLOCK_MUX_SRC_PLL,
+            RCC_CLOCK_MUX_SRC_LSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_LSCO] = {
+        .name = "lsco",
+        /* Same mapping as: BDCR_LSCOSEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_LSI,
+            RCC_CLOCK_MUX_SRC_LSE,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_DFSDM1] = {
+        .name = "dfsdm1",
+        /* Same mapping as: CCIPR_DFSDM1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_ADC] = {
+        .name = "adc",
+        /* Same mapping as: CCIPR_ADCSEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_GND,
+            RCC_CLOCK_MUX_SRC_PLLADC1,
+            RCC_CLOCK_MUX_SRC_PLLADC2,
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_CLK48] = {
+        .name = "clk48",
+        /* Same mapping as: CCIPR_CLK48SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_GND,
+            RCC_CLOCK_MUX_SRC_PLL48M2,
+            RCC_CLOCK_MUX_SRC_PLL48M1,
+            RCC_CLOCK_MUX_SRC_MSI,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SAI2] = {
+        .name = "sai2",
+        /* Same mapping as: CCIPR_SAI2SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PLLSAI1,
+            RCC_CLOCK_MUX_SRC_PLLSAI2,
+            RCC_CLOCK_MUX_SRC_PLLSAI3,
+            RCC_CLOCK_MUX_SRC_SAI2_EXTCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SAI1] = {
+        .name = "sai1",
+        /* Same mapping as: CCIPR_SAI1SEL */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PLLSAI1,
+            RCC_CLOCK_MUX_SRC_PLLSAI2,
+            RCC_CLOCK_MUX_SRC_PLLSAI3,
+            RCC_CLOCK_MUX_SRC_SAI1_EXTCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    /* From now on, these muxes only have one valid source */
+    [RCC_CLOCK_MUX_TSC] = {
+        .name = "tsc",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_CRC] = {
+        .name = "crc",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_FLASH] = {
+        .name = "flash",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_DMA2] = {
+        .name = "dma2",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_DMA1] = {
+        .name = "dma1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_RNG] = {
+        .name = "rng",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_AES] = {
+        .name = "aes",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_OTGFS] = {
+        .name = "otgfs",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOA] = {
+        .name = "gpioa",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOB] = {
+        .name = "gpiob",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOC] = {
+        .name = "gpioc",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOD] = {
+        .name = "gpiod",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOE] = {
+        .name = "gpioe",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOF] = {
+        .name = "gpiof",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOG] = {
+        .name = "gpiog",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_GPIOH] = {
+        .name = "gpioh",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_QSPI] = {
+        .name = "qspi",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_FMC] = {
+        .name = "fmc",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_OPAMP] = {
+        .name = "opamp",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_DAC1] = {
+        .name = "dac1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_PWR] = {
+        .name = "pwr",
+        /*
+         * PWREN is in the APB1ENR1 register,
+         * but PWR uses SYSCLK according to the clock tree.
+         */
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_SYSCLK,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_CAN1] = {
+        .name = "can1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SPI3] = {
+        .name = "spi3",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SPI2] = {
+        .name = "spi2",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_WWDG] = {
+        .name = "wwdg",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_LCD] = {
+        .name = "lcd",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_LCD_AND_RTC_COMMON,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM7] = {
+        .name = "tim7",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM6] = {
+        .name = "tim6",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM5] = {
+        .name = "tim5",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM4] = {
+        .name = "tim4",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM3] = {
+        .name = "tim3",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM2] = {
+        .name = "tim2",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK1,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM17] = {
+        .name = "tim17",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM16] = {
+        .name = "tim16",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM15] = {
+        .name = "tim15",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM8] = {
+        .name = "tim8",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SPI1] = {
+        .name = "spi1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_TIM1] = {
+        .name = "tim1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SDMMC1] = {
+        .name = "sdmmc1",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_FW] = {
+        .name = "fw",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_SYSCFG] = {
+        .name = "syscfg",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_PCLK2,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_RTC] = {
+        .name = "rtc",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_LCD_AND_RTC_COMMON,
+        },
+        FILL_DEFAULT_INIT_DISABLED,
+    },
+    [RCC_CLOCK_MUX_CORTEX_FCLK] = {
+        .name = "cortex-fclk",
+        .src_mapping = {
+            RCC_CLOCK_MUX_SRC_HCLK,
+        },
+        FILL_DEFAULT_INIT_ENABLED,
+    },
+};
+
+static inline void set_clock_mux_init_info(Stm32l4x5RccState *s,
+                                           RccClockMuxState *mux,
+                                           RccClockMux id)
+{
+    mux->id = id;
+    mux->multiplier = CLOCK_MUX_INIT_INFO[id].multiplier;
+    mux->divider = CLOCK_MUX_INIT_INFO[id].divider;
+    mux->enabled = CLOCK_MUX_INIT_INFO[id].enabled;
+    /*
+     * Every peripheral has the first source of their source list as
+     * as their default source.
+     */
+    mux->src = 0;
+}
+
 #endif /* HW_STM32L4X5_RCC_INTERNALS_H */
-- 
2.34.1