1 files changed, 210 insertions, 0 deletions
diff --git a/include/hw/misc/bcm2835_cprman.h b/include/hw/misc/bcm2835_cprman.h
new file mode 100644
index 0000000000..3df4ceedd2
--- /dev/null
+++ b/include/hw/misc/bcm2835_cprman.h
@@ -0,0 +1,210 @@
+/*
+ * BCM2835 CPRMAN clock manager
+ *
+ * Copyright (c) 2020 Luc Michel <luc@lmichel.fr>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef HW_MISC_CPRMAN_H
+#define HW_MISC_CPRMAN_H
+
+#include "hw/sysbus.h"
+#include "hw/qdev-clock.h"
+
+#define TYPE_BCM2835_CPRMAN "bcm2835-cprman"
+
+typedef struct BCM2835CprmanState BCM2835CprmanState;
+
+DECLARE_INSTANCE_CHECKER(BCM2835CprmanState, CPRMAN,
+                         TYPE_BCM2835_CPRMAN)
+
+#define CPRMAN_NUM_REGS (0x2000 / sizeof(uint32_t))
+
+typedef enum CprmanPll {
+    CPRMAN_PLLA = 0,
+    CPRMAN_PLLC,
+    CPRMAN_PLLD,
+    CPRMAN_PLLH,
+    CPRMAN_PLLB,
+
+    CPRMAN_NUM_PLL
+} CprmanPll;
+
+typedef enum CprmanPllChannel {
+    CPRMAN_PLLA_CHANNEL_DSI0 = 0,
+    CPRMAN_PLLA_CHANNEL_CORE,
+    CPRMAN_PLLA_CHANNEL_PER,
+    CPRMAN_PLLA_CHANNEL_CCP2,
+
+    CPRMAN_PLLC_CHANNEL_CORE2,
+    CPRMAN_PLLC_CHANNEL_CORE1,
+    CPRMAN_PLLC_CHANNEL_PER,
+    CPRMAN_PLLC_CHANNEL_CORE0,
+
+    CPRMAN_PLLD_CHANNEL_DSI0,
+    CPRMAN_PLLD_CHANNEL_CORE,
+    CPRMAN_PLLD_CHANNEL_PER,
+    CPRMAN_PLLD_CHANNEL_DSI1,
+
+    CPRMAN_PLLH_CHANNEL_AUX,
+    CPRMAN_PLLH_CHANNEL_RCAL,
+    CPRMAN_PLLH_CHANNEL_PIX,
+
+    CPRMAN_PLLB_CHANNEL_ARM,
+
+    CPRMAN_NUM_PLL_CHANNEL,
+
+    /* Special values used when connecting clock sources to clocks */
+    CPRMAN_CLOCK_SRC_NORMAL = -1,
+    CPRMAN_CLOCK_SRC_FORCE_GROUND = -2,
+    CPRMAN_CLOCK_SRC_DSI0HSCK = -3,
+} CprmanPllChannel;
+
+typedef enum CprmanClockMux {
+    CPRMAN_CLOCK_GNRIC,
+    CPRMAN_CLOCK_VPU,
+    CPRMAN_CLOCK_SYS,
+    CPRMAN_CLOCK_PERIA,
+    CPRMAN_CLOCK_PERII,
+    CPRMAN_CLOCK_H264,
+    CPRMAN_CLOCK_ISP,
+    CPRMAN_CLOCK_V3D,
+    CPRMAN_CLOCK_CAM0,
+    CPRMAN_CLOCK_CAM1,
+    CPRMAN_CLOCK_CCP2,
+    CPRMAN_CLOCK_DSI0E,
+    CPRMAN_CLOCK_DSI0P,
+    CPRMAN_CLOCK_DPI,
+    CPRMAN_CLOCK_GP0,
+    CPRMAN_CLOCK_GP1,
+    CPRMAN_CLOCK_GP2,
+    CPRMAN_CLOCK_HSM,
+    CPRMAN_CLOCK_OTP,
+    CPRMAN_CLOCK_PCM,
+    CPRMAN_CLOCK_PWM,
+    CPRMAN_CLOCK_SLIM,
+    CPRMAN_CLOCK_SMI,
+    CPRMAN_CLOCK_TEC,
+    CPRMAN_CLOCK_TD0,
+    CPRMAN_CLOCK_TD1,
+    CPRMAN_CLOCK_TSENS,
+    CPRMAN_CLOCK_TIMER,
+    CPRMAN_CLOCK_UART,
+    CPRMAN_CLOCK_VEC,
+    CPRMAN_CLOCK_PULSE,
+    CPRMAN_CLOCK_SDC,
+    CPRMAN_CLOCK_ARM,
+    CPRMAN_CLOCK_AVEO,
+    CPRMAN_CLOCK_EMMC,
+    CPRMAN_CLOCK_EMMC2,
+
+    CPRMAN_NUM_CLOCK_MUX
+} CprmanClockMux;
+
+typedef enum CprmanClockMuxSource {
+    CPRMAN_CLOCK_SRC_GND = 0,
+    CPRMAN_CLOCK_SRC_XOSC,
+    CPRMAN_CLOCK_SRC_TD0,
+    CPRMAN_CLOCK_SRC_TD1,
+    CPRMAN_CLOCK_SRC_PLLA,
+    CPRMAN_CLOCK_SRC_PLLC,
+    CPRMAN_CLOCK_SRC_PLLD,
+    CPRMAN_CLOCK_SRC_PLLH,
+    CPRMAN_CLOCK_SRC_PLLC_CORE1,
+    CPRMAN_CLOCK_SRC_PLLC_CORE2,
+
+    CPRMAN_NUM_CLOCK_MUX_SRC
+} CprmanClockMuxSource;
+
+typedef struct CprmanPllState {
+    /*< private >*/
+    DeviceState parent_obj;
+
+    /*< public >*/
+    CprmanPll id;
+
+    uint32_t *reg_cm;
+    uint32_t *reg_a2w_ctrl;
+    uint32_t *reg_a2w_ana; /* ANA[0] .. ANA[3] */
+    uint32_t prediv_mask; /* prediv bit in ana[1] */
+    uint32_t *reg_a2w_frac;
+
+    Clock *xosc_in;
+    Clock *out;
+} CprmanPllState;
+
+typedef struct CprmanPllChannelState {
+    /*< private >*/
+    DeviceState parent_obj;
+
+    /*< public >*/
+    CprmanPllChannel id;
+    CprmanPll parent;
+
+    uint32_t *reg_cm;
+    uint32_t hold_mask;
+    uint32_t load_mask;
+    uint32_t *reg_a2w_ctrl;
+    int fixed_divider;
+
+    Clock *pll_in;
+    Clock *out;
+} CprmanPllChannelState;
+
+typedef struct CprmanClockMuxState {
+    /*< private >*/
+    DeviceState parent_obj;
+
+    /*< public >*/
+    CprmanClockMux id;
+
+    uint32_t *reg_ctl;
+    uint32_t *reg_div;
+    int int_bits;
+    int frac_bits;
+
+    Clock *srcs[CPRMAN_NUM_CLOCK_MUX_SRC];
+    Clock *out;
+
+    /*
+     * Used by clock srcs update callback to retrieve both the clock and the
+     * source number.
+     */
+    struct CprmanClockMuxState *backref[CPRMAN_NUM_CLOCK_MUX_SRC];
+} CprmanClockMuxState;
+
+typedef struct CprmanDsi0HsckMuxState {
+    /*< private >*/
+    DeviceState parent_obj;
+
+    /*< public >*/
+    CprmanClockMux id;
+
+    uint32_t *reg_cm;
+
+    Clock *plla_in;
+    Clock *plld_in;
+    Clock *out;
+} CprmanDsi0HsckMuxState;
+
+struct BCM2835CprmanState {
+    /*< private >*/
+    SysBusDevice parent_obj;
+
+    /*< public >*/
+    MemoryRegion iomem;
+
+    CprmanPllState plls[CPRMAN_NUM_PLL];
+    CprmanPllChannelState channels[CPRMAN_NUM_PLL_CHANNEL];
+    CprmanClockMuxState clock_muxes[CPRMAN_NUM_CLOCK_MUX];
+    CprmanDsi0HsckMuxState dsi0hsck_mux;
+
+    uint32_t regs[CPRMAN_NUM_REGS];
+    uint32_t xosc_freq;
+
+    Clock *xosc;
+    Clock *gnd;
+};
+
+#endif