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qemu/include/hw/misc/bcm2835_cprman_internals.h
Luc Michel 83ad469547 hw/misc/bcm2835_cprman: add sane reset values to the registers 
Those reset values have been extracted from a Raspberry Pi 3 model B
v1.2, using the 2020-08-20 version of raspios. The dump was done using
the debugfs interface of the CPRMAN driver in Linux (under
'/sys/kernel/debug/clk'). Each exposed clock tree stage (PLLs, channels
and muxes) can be observed by reading the 'regdump' file (e.g.
'plla/regdump').

Those values are set by the Raspberry Pi firmware at boot time (Linux
expects them to be set when it boots up).

Some stages are not exposed by the Linux driver (e.g. the PLL B). For
those, the reset values are unknown and left to 0 which implies a
disabled output.

Once booted in QEMU, the final clock tree is very similar to the one
visible on real hardware. The differences come from some unimplemented
devices for which the driver simply disable the corresponding clock.

Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Luc Michel <luc@lmichel.fr>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-27 11:10:44 +00:00

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/*
* BCM2835 CPRMAN clock manager
*
* Copyright (c) 2020 Luc Michel <luc@lmichel.fr>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef HW_MISC_CPRMAN_INTERNALS_H
#define HW_MISC_CPRMAN_INTERNALS_H
#include "hw/registerfields.h"
#include "hw/misc/bcm2835_cprman.h"
#define TYPE_CPRMAN_PLL "bcm2835-cprman-pll"
#define TYPE_CPRMAN_PLL_CHANNEL "bcm2835-cprman-pll-channel"
#define TYPE_CPRMAN_CLOCK_MUX "bcm2835-cprman-clock-mux"
#define TYPE_CPRMAN_DSI0HSCK_MUX "bcm2835-cprman-dsi0hsck-mux"
DECLARE_INSTANCE_CHECKER(CprmanPllState, CPRMAN_PLL,
TYPE_CPRMAN_PLL)
DECLARE_INSTANCE_CHECKER(CprmanPllChannelState, CPRMAN_PLL_CHANNEL,
TYPE_CPRMAN_PLL_CHANNEL)
DECLARE_INSTANCE_CHECKER(CprmanClockMuxState, CPRMAN_CLOCK_MUX,
TYPE_CPRMAN_CLOCK_MUX)
DECLARE_INSTANCE_CHECKER(CprmanDsi0HsckMuxState, CPRMAN_DSI0HSCK_MUX,
TYPE_CPRMAN_DSI0HSCK_MUX)
/* Register map */
/* PLLs */
REG32(CM_PLLA, 0x104)
FIELD(CM_PLLA, LOADDSI0, 0, 1)
FIELD(CM_PLLA, HOLDDSI0, 1, 1)
FIELD(CM_PLLA, LOADCCP2, 2, 1)
FIELD(CM_PLLA, HOLDCCP2, 3, 1)
FIELD(CM_PLLA, LOADCORE, 4, 1)
FIELD(CM_PLLA, HOLDCORE, 5, 1)
FIELD(CM_PLLA, LOADPER, 6, 1)
FIELD(CM_PLLA, HOLDPER, 7, 1)
FIELD(CM_PLLx, ANARST, 8, 1)
REG32(CM_PLLC, 0x108)
FIELD(CM_PLLC, LOADCORE0, 0, 1)
FIELD(CM_PLLC, HOLDCORE0, 1, 1)
FIELD(CM_PLLC, LOADCORE1, 2, 1)
FIELD(CM_PLLC, HOLDCORE1, 3, 1)
FIELD(CM_PLLC, LOADCORE2, 4, 1)
FIELD(CM_PLLC, HOLDCORE2, 5, 1)
FIELD(CM_PLLC, LOADPER, 6, 1)
FIELD(CM_PLLC, HOLDPER, 7, 1)
REG32(CM_PLLD, 0x10c)
FIELD(CM_PLLD, LOADDSI0, 0, 1)
FIELD(CM_PLLD, HOLDDSI0, 1, 1)
FIELD(CM_PLLD, LOADDSI1, 2, 1)
FIELD(CM_PLLD, HOLDDSI1, 3, 1)
FIELD(CM_PLLD, LOADCORE, 4, 1)
FIELD(CM_PLLD, HOLDCORE, 5, 1)
FIELD(CM_PLLD, LOADPER, 6, 1)
FIELD(CM_PLLD, HOLDPER, 7, 1)
REG32(CM_PLLH, 0x110)
FIELD(CM_PLLH, LOADPIX, 0, 1)
FIELD(CM_PLLH, LOADAUX, 1, 1)
FIELD(CM_PLLH, LOADRCAL, 2, 1)
REG32(CM_PLLB, 0x170)
FIELD(CM_PLLB, LOADARM, 0, 1)
FIELD(CM_PLLB, HOLDARM, 1, 1)
REG32(A2W_PLLA_CTRL, 0x1100)
FIELD(A2W_PLLx_CTRL, NDIV, 0, 10)
FIELD(A2W_PLLx_CTRL, PDIV, 12, 3)
FIELD(A2W_PLLx_CTRL, PWRDN, 16, 1)
FIELD(A2W_PLLx_CTRL, PRST_DISABLE, 17, 1)
REG32(A2W_PLLC_CTRL, 0x1120)
REG32(A2W_PLLD_CTRL, 0x1140)
REG32(A2W_PLLH_CTRL, 0x1160)
REG32(A2W_PLLB_CTRL, 0x11e0)
REG32(A2W_PLLA_ANA0, 0x1010)
REG32(A2W_PLLA_ANA1, 0x1014)
FIELD(A2W_PLLx_ANA1, FB_PREDIV, 14, 1)
REG32(A2W_PLLA_ANA2, 0x1018)
REG32(A2W_PLLA_ANA3, 0x101c)
REG32(A2W_PLLC_ANA0, 0x1030)
REG32(A2W_PLLC_ANA1, 0x1034)
REG32(A2W_PLLC_ANA2, 0x1038)
REG32(A2W_PLLC_ANA3, 0x103c)
REG32(A2W_PLLD_ANA0, 0x1050)
REG32(A2W_PLLD_ANA1, 0x1054)
REG32(A2W_PLLD_ANA2, 0x1058)
REG32(A2W_PLLD_ANA3, 0x105c)
REG32(A2W_PLLH_ANA0, 0x1070)
REG32(A2W_PLLH_ANA1, 0x1074)
FIELD(A2W_PLLH_ANA1, FB_PREDIV, 11, 1)
REG32(A2W_PLLH_ANA2, 0x1078)
REG32(A2W_PLLH_ANA3, 0x107c)
REG32(A2W_PLLB_ANA0, 0x10f0)
REG32(A2W_PLLB_ANA1, 0x10f4)
REG32(A2W_PLLB_ANA2, 0x10f8)
REG32(A2W_PLLB_ANA3, 0x10fc)
REG32(A2W_PLLA_FRAC, 0x1200)
FIELD(A2W_PLLx_FRAC, FRAC, 0, 20)
REG32(A2W_PLLC_FRAC, 0x1220)
REG32(A2W_PLLD_FRAC, 0x1240)
REG32(A2W_PLLH_FRAC, 0x1260)
REG32(A2W_PLLB_FRAC, 0x12e0)
/* PLL channels */
REG32(A2W_PLLA_DSI0, 0x1300)
FIELD(A2W_PLLx_CHANNELy, DIV, 0, 8)
FIELD(A2W_PLLx_CHANNELy, DISABLE, 8, 1)
REG32(A2W_PLLA_CORE, 0x1400)
REG32(A2W_PLLA_PER, 0x1500)
REG32(A2W_PLLA_CCP2, 0x1600)
REG32(A2W_PLLC_CORE2, 0x1320)
REG32(A2W_PLLC_CORE1, 0x1420)
REG32(A2W_PLLC_PER, 0x1520)
REG32(A2W_PLLC_CORE0, 0x1620)
REG32(A2W_PLLD_DSI0, 0x1340)
REG32(A2W_PLLD_CORE, 0x1440)
REG32(A2W_PLLD_PER, 0x1540)
REG32(A2W_PLLD_DSI1, 0x1640)
REG32(A2W_PLLH_AUX, 0x1360)
REG32(A2W_PLLH_RCAL, 0x1460)
REG32(A2W_PLLH_PIX, 0x1560)
REG32(A2W_PLLH_STS, 0x1660)
REG32(A2W_PLLB_ARM, 0x13e0)
/* Clock muxes */
REG32(CM_GNRICCTL, 0x000)
FIELD(CM_CLOCKx_CTL, SRC, 0, 4)
FIELD(CM_CLOCKx_CTL, ENABLE, 4, 1)
FIELD(CM_CLOCKx_CTL, KILL, 5, 1)
FIELD(CM_CLOCKx_CTL, GATE, 6, 1)
FIELD(CM_CLOCKx_CTL, BUSY, 7, 1)
FIELD(CM_CLOCKx_CTL, BUSYD, 8, 1)
FIELD(CM_CLOCKx_CTL, MASH, 9, 2)
FIELD(CM_CLOCKx_CTL, FLIP, 11, 1)
REG32(CM_GNRICDIV, 0x004)
FIELD(CM_CLOCKx_DIV, FRAC, 0, 12)
REG32(CM_VPUCTL, 0x008)
REG32(CM_VPUDIV, 0x00c)
REG32(CM_SYSCTL, 0x010)
REG32(CM_SYSDIV, 0x014)
REG32(CM_PERIACTL, 0x018)
REG32(CM_PERIADIV, 0x01c)
REG32(CM_PERIICTL, 0x020)
REG32(CM_PERIIDIV, 0x024)
REG32(CM_H264CTL, 0x028)
REG32(CM_H264DIV, 0x02c)
REG32(CM_ISPCTL, 0x030)
REG32(CM_ISPDIV, 0x034)
REG32(CM_V3DCTL, 0x038)
REG32(CM_V3DDIV, 0x03c)
REG32(CM_CAM0CTL, 0x040)
REG32(CM_CAM0DIV, 0x044)
REG32(CM_CAM1CTL, 0x048)
REG32(CM_CAM1DIV, 0x04c)
REG32(CM_CCP2CTL, 0x050)
REG32(CM_CCP2DIV, 0x054)
REG32(CM_DSI0ECTL, 0x058)
REG32(CM_DSI0EDIV, 0x05c)
REG32(CM_DSI0PCTL, 0x060)
REG32(CM_DSI0PDIV, 0x064)
REG32(CM_DPICTL, 0x068)
REG32(CM_DPIDIV, 0x06c)
REG32(CM_GP0CTL, 0x070)
REG32(CM_GP0DIV, 0x074)
REG32(CM_GP1CTL, 0x078)
REG32(CM_GP1DIV, 0x07c)
REG32(CM_GP2CTL, 0x080)
REG32(CM_GP2DIV, 0x084)
REG32(CM_HSMCTL, 0x088)
REG32(CM_HSMDIV, 0x08c)
REG32(CM_OTPCTL, 0x090)
REG32(CM_OTPDIV, 0x094)
REG32(CM_PCMCTL, 0x098)
REG32(CM_PCMDIV, 0x09c)
REG32(CM_PWMCTL, 0x0a0)
REG32(CM_PWMDIV, 0x0a4)
REG32(CM_SLIMCTL, 0x0a8)
REG32(CM_SLIMDIV, 0x0ac)
REG32(CM_SMICTL, 0x0b0)
REG32(CM_SMIDIV, 0x0b4)
REG32(CM_TCNTCTL, 0x0c0)
REG32(CM_TCNTCNT, 0x0c4)
REG32(CM_TECCTL, 0x0c8)
REG32(CM_TECDIV, 0x0cc)
REG32(CM_TD0CTL, 0x0d0)
REG32(CM_TD0DIV, 0x0d4)
REG32(CM_TD1CTL, 0x0d8)
REG32(CM_TD1DIV, 0x0dc)
REG32(CM_TSENSCTL, 0x0e0)
REG32(CM_TSENSDIV, 0x0e4)
REG32(CM_TIMERCTL, 0x0e8)
REG32(CM_TIMERDIV, 0x0ec)
REG32(CM_UARTCTL, 0x0f0)
REG32(CM_UARTDIV, 0x0f4)
REG32(CM_VECCTL, 0x0f8)
REG32(CM_VECDIV, 0x0fc)
REG32(CM_PULSECTL, 0x190)
REG32(CM_PULSEDIV, 0x194)
REG32(CM_SDCCTL, 0x1a8)
REG32(CM_SDCDIV, 0x1ac)
REG32(CM_ARMCTL, 0x1b0)
REG32(CM_AVEOCTL, 0x1b8)
REG32(CM_AVEODIV, 0x1bc)
REG32(CM_EMMCCTL, 0x1c0)
REG32(CM_EMMCDIV, 0x1c4)
REG32(CM_EMMC2CTL, 0x1d0)
REG32(CM_EMMC2DIV, 0x1d4)
/* misc registers */
REG32(CM_LOCK, 0x114)
FIELD(CM_LOCK, FLOCKH, 12, 1)
FIELD(CM_LOCK, FLOCKD, 11, 1)
FIELD(CM_LOCK, FLOCKC, 10, 1)
FIELD(CM_LOCK, FLOCKB, 9, 1)
FIELD(CM_LOCK, FLOCKA, 8, 1)
REG32(CM_DSI0HSCK, 0x120)
FIELD(CM_DSI0HSCK, SELPLLD, 0, 1)
/*
* This field is common to all registers. Each register write value must match
* the CPRMAN_PASSWORD magic value in its 8 MSB.
*/
FIELD(CPRMAN, PASSWORD, 24, 8)
#define CPRMAN_PASSWORD 0x5a
/* PLL init info */
typedef struct PLLInitInfo {
const char *name;
size_t cm_offset;
size_t a2w_ctrl_offset;
size_t a2w_ana_offset;
uint32_t prediv_mask; /* Prediv bit in ana[1] */
size_t a2w_frac_offset;
} PLLInitInfo;
#define FILL_PLL_INIT_INFO(pll_) \
.cm_offset = R_CM_ ## pll_, \
.a2w_ctrl_offset = R_A2W_ ## pll_ ## _CTRL, \
.a2w_ana_offset = R_A2W_ ## pll_ ## _ANA0, \
.a2w_frac_offset = R_A2W_ ## pll_ ## _FRAC
static const PLLInitInfo PLL_INIT_INFO[] = {
[CPRMAN_PLLA] = {
.name = "plla",
.prediv_mask = R_A2W_PLLx_ANA1_FB_PREDIV_MASK,
FILL_PLL_INIT_INFO(PLLA),
},
[CPRMAN_PLLC] = {
.name = "pllc",
.prediv_mask = R_A2W_PLLx_ANA1_FB_PREDIV_MASK,
FILL_PLL_INIT_INFO(PLLC),
},
[CPRMAN_PLLD] = {
.name = "plld",
.prediv_mask = R_A2W_PLLx_ANA1_FB_PREDIV_MASK,
FILL_PLL_INIT_INFO(PLLD),
},
[CPRMAN_PLLH] = {
.name = "pllh",
.prediv_mask = R_A2W_PLLH_ANA1_FB_PREDIV_MASK,
FILL_PLL_INIT_INFO(PLLH),
},
[CPRMAN_PLLB] = {
.name = "pllb",
.prediv_mask = R_A2W_PLLx_ANA1_FB_PREDIV_MASK,
FILL_PLL_INIT_INFO(PLLB),
},
};
#undef FILL_PLL_CHANNEL_INIT_INFO
static inline void set_pll_init_info(BCM2835CprmanState *s,
CprmanPllState *pll,
CprmanPll id)
{
pll->id = id;
pll->reg_cm = &s->regs[PLL_INIT_INFO[id].cm_offset];
pll->reg_a2w_ctrl = &s->regs[PLL_INIT_INFO[id].a2w_ctrl_offset];
pll->reg_a2w_ana = &s->regs[PLL_INIT_INFO[id].a2w_ana_offset];
pll->prediv_mask = PLL_INIT_INFO[id].prediv_mask;
pll->reg_a2w_frac = &s->regs[PLL_INIT_INFO[id].a2w_frac_offset];
}
/* PLL channel init info */
typedef struct PLLChannelInitInfo {
const char *name;
CprmanPll parent;
size_t cm_offset;
uint32_t cm_hold_mask;
uint32_t cm_load_mask;
size_t a2w_ctrl_offset;
unsigned int fixed_divider;
} PLLChannelInitInfo;
#define FILL_PLL_CHANNEL_INIT_INFO_common(pll_, channel_) \
.parent = CPRMAN_ ## pll_, \
.cm_offset = R_CM_ ## pll_, \
.cm_load_mask = R_CM_ ## pll_ ## _ ## LOAD ## channel_ ## _MASK, \
.a2w_ctrl_offset = R_A2W_ ## pll_ ## _ ## channel_
#define FILL_PLL_CHANNEL_INIT_INFO(pll_, channel_) \
FILL_PLL_CHANNEL_INIT_INFO_common(pll_, channel_), \
.cm_hold_mask = R_CM_ ## pll_ ## _ ## HOLD ## channel_ ## _MASK, \
.fixed_divider = 1
#define FILL_PLL_CHANNEL_INIT_INFO_nohold(pll_, channel_) \
FILL_PLL_CHANNEL_INIT_INFO_common(pll_, channel_), \
.cm_hold_mask = 0
static PLLChannelInitInfo PLL_CHANNEL_INIT_INFO[] = {
[CPRMAN_PLLA_CHANNEL_DSI0] = {
.name = "plla-dsi0",
FILL_PLL_CHANNEL_INIT_INFO(PLLA, DSI0),
},
[CPRMAN_PLLA_CHANNEL_CORE] = {
.name = "plla-core",
FILL_PLL_CHANNEL_INIT_INFO(PLLA, CORE),
},
[CPRMAN_PLLA_CHANNEL_PER] = {
.name = "plla-per",
FILL_PLL_CHANNEL_INIT_INFO(PLLA, PER),
},
[CPRMAN_PLLA_CHANNEL_CCP2] = {
.name = "plla-ccp2",
FILL_PLL_CHANNEL_INIT_INFO(PLLA, CCP2),
},
[CPRMAN_PLLC_CHANNEL_CORE2] = {
.name = "pllc-core2",
FILL_PLL_CHANNEL_INIT_INFO(PLLC, CORE2),
},
[CPRMAN_PLLC_CHANNEL_CORE1] = {
.name = "pllc-core1",
FILL_PLL_CHANNEL_INIT_INFO(PLLC, CORE1),
},
[CPRMAN_PLLC_CHANNEL_PER] = {
.name = "pllc-per",
FILL_PLL_CHANNEL_INIT_INFO(PLLC, PER),
},
[CPRMAN_PLLC_CHANNEL_CORE0] = {
.name = "pllc-core0",
FILL_PLL_CHANNEL_INIT_INFO(PLLC, CORE0),
},
[CPRMAN_PLLD_CHANNEL_DSI0] = {
.name = "plld-dsi0",
FILL_PLL_CHANNEL_INIT_INFO(PLLD, DSI0),
},
[CPRMAN_PLLD_CHANNEL_CORE] = {
.name = "plld-core",
FILL_PLL_CHANNEL_INIT_INFO(PLLD, CORE),
},
[CPRMAN_PLLD_CHANNEL_PER] = {
.name = "plld-per",
FILL_PLL_CHANNEL_INIT_INFO(PLLD, PER),
},
[CPRMAN_PLLD_CHANNEL_DSI1] = {
.name = "plld-dsi1",
FILL_PLL_CHANNEL_INIT_INFO(PLLD, DSI1),
},
[CPRMAN_PLLH_CHANNEL_AUX] = {
.name = "pllh-aux",
.fixed_divider = 1,
FILL_PLL_CHANNEL_INIT_INFO_nohold(PLLH, AUX),
},
[CPRMAN_PLLH_CHANNEL_RCAL] = {
.name = "pllh-rcal",
.fixed_divider = 10,
FILL_PLL_CHANNEL_INIT_INFO_nohold(PLLH, RCAL),
},
[CPRMAN_PLLH_CHANNEL_PIX] = {
.name = "pllh-pix",
.fixed_divider = 10,
FILL_PLL_CHANNEL_INIT_INFO_nohold(PLLH, PIX),
},
[CPRMAN_PLLB_CHANNEL_ARM] = {
.name = "pllb-arm",
FILL_PLL_CHANNEL_INIT_INFO(PLLB, ARM),
},
};
#undef FILL_PLL_CHANNEL_INIT_INFO_nohold
#undef FILL_PLL_CHANNEL_INIT_INFO
#undef FILL_PLL_CHANNEL_INIT_INFO_common
static inline void set_pll_channel_init_info(BCM2835CprmanState *s,
CprmanPllChannelState *channel,
CprmanPllChannel id)
{
channel->id = id;
channel->parent = PLL_CHANNEL_INIT_INFO[id].parent;
channel->reg_cm = &s->regs[PLL_CHANNEL_INIT_INFO[id].cm_offset];
channel->hold_mask = PLL_CHANNEL_INIT_INFO[id].cm_hold_mask;
channel->load_mask = PLL_CHANNEL_INIT_INFO[id].cm_load_mask;
channel->reg_a2w_ctrl = &s->regs[PLL_CHANNEL_INIT_INFO[id].a2w_ctrl_offset];
channel->fixed_divider = PLL_CHANNEL_INIT_INFO[id].fixed_divider;
}
/* Clock mux init info */
typedef struct ClockMuxInitInfo {
const char *name;
size_t cm_offset; /* cm_offset[0]->CM_CTL, cm_offset[1]->CM_DIV */
int int_bits;
int frac_bits;
CprmanPllChannel src_mapping[CPRMAN_NUM_CLOCK_MUX_SRC];
} ClockMuxInitInfo;
/*
* Each clock mux can have up to 10 sources. Sources 0 to 3 are always the
* same (ground, xosc, td0, td1). Sources 4 to 9 are mux specific, and are not
* always populated. The following macros catch all those cases.
*/
/* Unknown mapping. Connect everything to ground */
#define SRC_MAPPING_INFO_unknown \
.src_mapping = { \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* gnd */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* xosc */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* test debug 0 */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* test debug 1 */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* pll a */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* pll c */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* pll d */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* pll h */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* pll c, core1 */ \
CPRMAN_CLOCK_SRC_FORCE_GROUND, /* pll c, core2 */ \
}
/* Only the oscillator and the two test debug clocks */
#define SRC_MAPPING_INFO_xosc \
.src_mapping = { \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
}
/* All the PLL "core" channels */
#define SRC_MAPPING_INFO_core \
.src_mapping = { \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_PLLA_CHANNEL_CORE, \
CPRMAN_PLLC_CHANNEL_CORE0, \
CPRMAN_PLLD_CHANNEL_CORE, \
CPRMAN_PLLH_CHANNEL_AUX, \
CPRMAN_PLLC_CHANNEL_CORE1, \
CPRMAN_PLLC_CHANNEL_CORE2, \
}
/* All the PLL "per" channels */
#define SRC_MAPPING_INFO_periph \
.src_mapping = { \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_PLLA_CHANNEL_PER, \
CPRMAN_PLLC_CHANNEL_PER, \
CPRMAN_PLLD_CHANNEL_PER, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
}
/*
* The DSI0 channels. This one got an intermediate mux between the PLL channels
* and the clock input.
*/
#define SRC_MAPPING_INFO_dsi0 \
.src_mapping = { \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_DSI0HSCK, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
}
/* The DSI1 channel */
#define SRC_MAPPING_INFO_dsi1 \
.src_mapping = { \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_CLOCK_SRC_NORMAL, \
CPRMAN_PLLD_CHANNEL_DSI1, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
CPRMAN_CLOCK_SRC_FORCE_GROUND, \
}
#define FILL_CLOCK_MUX_SRC_MAPPING_INIT_INFO(kind_) \
SRC_MAPPING_INFO_ ## kind_
#define FILL_CLOCK_MUX_INIT_INFO(clock_, kind_) \
.cm_offset = R_CM_ ## clock_ ## CTL, \
FILL_CLOCK_MUX_SRC_MAPPING_INIT_INFO(kind_)
static ClockMuxInitInfo CLOCK_MUX_INIT_INFO[] = {
[CPRMAN_CLOCK_GNRIC] = {
.name = "gnric",
FILL_CLOCK_MUX_INIT_INFO(GNRIC, unknown),
},
[CPRMAN_CLOCK_VPU] = {
.name = "vpu",
.int_bits = 12,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(VPU, core),
},
[CPRMAN_CLOCK_SYS] = {
.name = "sys",
FILL_CLOCK_MUX_INIT_INFO(SYS, unknown),
},
[CPRMAN_CLOCK_PERIA] = {
.name = "peria",
FILL_CLOCK_MUX_INIT_INFO(PERIA, unknown),
},
[CPRMAN_CLOCK_PERII] = {
.name = "perii",
FILL_CLOCK_MUX_INIT_INFO(PERII, unknown),
},
[CPRMAN_CLOCK_H264] = {
.name = "h264",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(H264, core),
},
[CPRMAN_CLOCK_ISP] = {
.name = "isp",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(ISP, core),
},
[CPRMAN_CLOCK_V3D] = {
.name = "v3d",
FILL_CLOCK_MUX_INIT_INFO(V3D, core),
},
[CPRMAN_CLOCK_CAM0] = {
.name = "cam0",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(CAM0, periph),
},
[CPRMAN_CLOCK_CAM1] = {
.name = "cam1",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(CAM1, periph),
},
[CPRMAN_CLOCK_CCP2] = {
.name = "ccp2",
FILL_CLOCK_MUX_INIT_INFO(CCP2, unknown),
},
[CPRMAN_CLOCK_DSI0E] = {
.name = "dsi0e",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(DSI0E, dsi0),
},
[CPRMAN_CLOCK_DSI0P] = {
.name = "dsi0p",
.int_bits = 0,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(DSI0P, dsi0),
},
[CPRMAN_CLOCK_DPI] = {
.name = "dpi",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(DPI, periph),
},
[CPRMAN_CLOCK_GP0] = {
.name = "gp0",
.int_bits = 12,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(GP0, periph),
},
[CPRMAN_CLOCK_GP1] = {
.name = "gp1",
.int_bits = 12,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(GP1, periph),
},
[CPRMAN_CLOCK_GP2] = {
.name = "gp2",
.int_bits = 12,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(GP2, periph),
},
[CPRMAN_CLOCK_HSM] = {
.name = "hsm",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(HSM, periph),
},
[CPRMAN_CLOCK_OTP] = {
.name = "otp",
.int_bits = 4,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(OTP, xosc),
},
[CPRMAN_CLOCK_PCM] = {
.name = "pcm",
.int_bits = 12,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(PCM, periph),
},
[CPRMAN_CLOCK_PWM] = {
.name = "pwm",
.int_bits = 12,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(PWM, periph),
},
[CPRMAN_CLOCK_SLIM] = {
.name = "slim",
.int_bits = 12,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(SLIM, periph),
},
[CPRMAN_CLOCK_SMI] = {
.name = "smi",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(SMI, periph),
},
[CPRMAN_CLOCK_TEC] = {
.name = "tec",
.int_bits = 6,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(TEC, xosc),
},
[CPRMAN_CLOCK_TD0] = {
.name = "td0",
FILL_CLOCK_MUX_INIT_INFO(TD0, unknown),
},
[CPRMAN_CLOCK_TD1] = {
.name = "td1",
FILL_CLOCK_MUX_INIT_INFO(TD1, unknown),
},
[CPRMAN_CLOCK_TSENS] = {
.name = "tsens",
.int_bits = 5,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(TSENS, xosc),
},
[CPRMAN_CLOCK_TIMER] = {
.name = "timer",
.int_bits = 6,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(TIMER, xosc),
},
[CPRMAN_CLOCK_UART] = {
.name = "uart",
.int_bits = 10,
.frac_bits = 12,
FILL_CLOCK_MUX_INIT_INFO(UART, periph),
},
[CPRMAN_CLOCK_VEC] = {
.name = "vec",
.int_bits = 4,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(VEC, periph),
},
[CPRMAN_CLOCK_PULSE] = {
.name = "pulse",
FILL_CLOCK_MUX_INIT_INFO(PULSE, xosc),
},
[CPRMAN_CLOCK_SDC] = {
.name = "sdram",
.int_bits = 6,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(SDC, core),
},
[CPRMAN_CLOCK_ARM] = {
.name = "arm",
FILL_CLOCK_MUX_INIT_INFO(ARM, unknown),
},
[CPRMAN_CLOCK_AVEO] = {
.name = "aveo",
.int_bits = 4,
.frac_bits = 0,
FILL_CLOCK_MUX_INIT_INFO(AVEO, periph),
},
[CPRMAN_CLOCK_EMMC] = {
.name = "emmc",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(EMMC, periph),
},
[CPRMAN_CLOCK_EMMC2] = {
.name = "emmc2",
.int_bits = 4,
.frac_bits = 8,
FILL_CLOCK_MUX_INIT_INFO(EMMC2, unknown),
},
};
#undef FILL_CLOCK_MUX_INIT_INFO
#undef FILL_CLOCK_MUX_SRC_MAPPING_INIT_INFO
#undef SRC_MAPPING_INFO_dsi1
#undef SRC_MAPPING_INFO_dsi0
#undef SRC_MAPPING_INFO_periph
#undef SRC_MAPPING_INFO_core
#undef SRC_MAPPING_INFO_xosc
#undef SRC_MAPPING_INFO_unknown
static inline void set_clock_mux_init_info(BCM2835CprmanState *s,
CprmanClockMuxState *mux,
CprmanClockMux id)
{
mux->id = id;
mux->reg_ctl = &s->regs[CLOCK_MUX_INIT_INFO[id].cm_offset];
mux->reg_div = &s->regs[CLOCK_MUX_INIT_INFO[id].cm_offset + 1];
mux->int_bits = CLOCK_MUX_INIT_INFO[id].int_bits;
mux->frac_bits = CLOCK_MUX_INIT_INFO[id].frac_bits;
}
/*
* Object reset info
* Those values have been dumped from a Raspberry Pi 3 Model B v1.2 using the
* clk debugfs interface in Linux.
*/
typedef struct PLLResetInfo {
uint32_t cm;
uint32_t a2w_ctrl;
uint32_t a2w_ana[4];
uint32_t a2w_frac;
} PLLResetInfo;
static const PLLResetInfo PLL_RESET_INFO[] = {
[CPRMAN_PLLA] = {
.cm = 0x0000008a,
.a2w_ctrl = 0x0002103a,
.a2w_frac = 0x00098000,
.a2w_ana = { 0x00000000, 0x00144000, 0x00000000, 0x00000100 }
},
[CPRMAN_PLLC] = {
.cm = 0x00000228,
.a2w_ctrl = 0x0002103e,
.a2w_frac = 0x00080000,
.a2w_ana = { 0x00000000, 0x00144000, 0x00000000, 0x00000100 }
},
[CPRMAN_PLLD] = {
.cm = 0x0000020a,
.a2w_ctrl = 0x00021034,
.a2w_frac = 0x00015556,
.a2w_ana = { 0x00000000, 0x00144000, 0x00000000, 0x00000100 }
},
[CPRMAN_PLLH] = {
.cm = 0x00000000,
.a2w_ctrl = 0x0002102d,
.a2w_frac = 0x00000000,
.a2w_ana = { 0x00900000, 0x0000000c, 0x00000000, 0x00000000 }
},
[CPRMAN_PLLB] = {
/* unknown */
.cm = 0x00000000,
.a2w_ctrl = 0x00000000,
.a2w_frac = 0x00000000,
.a2w_ana = { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }
}
};
typedef struct PLLChannelResetInfo {
/*
* Even though a PLL channel has a CM register, it shares it with its
* parent PLL. The parent already takes care of the reset value.
*/
uint32_t a2w_ctrl;
} PLLChannelResetInfo;
static const PLLChannelResetInfo PLL_CHANNEL_RESET_INFO[] = {
[CPRMAN_PLLA_CHANNEL_DSI0] = { .a2w_ctrl = 0x00000100 },
[CPRMAN_PLLA_CHANNEL_CORE] = { .a2w_ctrl = 0x00000003 },
[CPRMAN_PLLA_CHANNEL_PER] = { .a2w_ctrl = 0x00000000 }, /* unknown */
[CPRMAN_PLLA_CHANNEL_CCP2] = { .a2w_ctrl = 0x00000100 },
[CPRMAN_PLLC_CHANNEL_CORE2] = { .a2w_ctrl = 0x00000100 },
[CPRMAN_PLLC_CHANNEL_CORE1] = { .a2w_ctrl = 0x00000100 },
[CPRMAN_PLLC_CHANNEL_PER] = { .a2w_ctrl = 0x00000002 },
[CPRMAN_PLLC_CHANNEL_CORE0] = { .a2w_ctrl = 0x00000002 },
[CPRMAN_PLLD_CHANNEL_DSI0] = { .a2w_ctrl = 0x00000100 },
[CPRMAN_PLLD_CHANNEL_CORE] = { .a2w_ctrl = 0x00000004 },
[CPRMAN_PLLD_CHANNEL_PER] = { .a2w_ctrl = 0x00000004 },
[CPRMAN_PLLD_CHANNEL_DSI1] = { .a2w_ctrl = 0x00000100 },
[CPRMAN_PLLH_CHANNEL_AUX] = { .a2w_ctrl = 0x00000004 },
[CPRMAN_PLLH_CHANNEL_RCAL] = { .a2w_ctrl = 0x00000000 },
[CPRMAN_PLLH_CHANNEL_PIX] = { .a2w_ctrl = 0x00000000 },
[CPRMAN_PLLB_CHANNEL_ARM] = { .a2w_ctrl = 0x00000000 }, /* unknown */
};
typedef struct ClockMuxResetInfo {
uint32_t cm_ctl;
uint32_t cm_div;
} ClockMuxResetInfo;
static const ClockMuxResetInfo CLOCK_MUX_RESET_INFO[] = {
[CPRMAN_CLOCK_GNRIC] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_VPU] = {
.cm_ctl = 0x00000245,
.cm_div = 0x00003000,
},
[CPRMAN_CLOCK_SYS] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_PERIA] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_PERII] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_H264] = {
.cm_ctl = 0x00000244,
.cm_div = 0x00003000,
},
[CPRMAN_CLOCK_ISP] = {
.cm_ctl = 0x00000244,
.cm_div = 0x00003000,
},
[CPRMAN_CLOCK_V3D] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_CAM0] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_CAM1] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_CCP2] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_DSI0E] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_DSI0P] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_DPI] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_GP0] = {
.cm_ctl = 0x00000200,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_GP1] = {
.cm_ctl = 0x00000096,
.cm_div = 0x00014000,
},
[CPRMAN_CLOCK_GP2] = {
.cm_ctl = 0x00000291,
.cm_div = 0x00249f00,
},
[CPRMAN_CLOCK_HSM] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_OTP] = {
.cm_ctl = 0x00000091,
.cm_div = 0x00004000,
},
[CPRMAN_CLOCK_PCM] = {
.cm_ctl = 0x00000200,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_PWM] = {
.cm_ctl = 0x00000200,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_SLIM] = {
.cm_ctl = 0x00000200,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_SMI] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_TEC] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_TD0] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_TD1] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_TSENS] = {
.cm_ctl = 0x00000091,
.cm_div = 0x0000a000,
},
[CPRMAN_CLOCK_TIMER] = {
.cm_ctl = 0x00000291,
.cm_div = 0x00013333,
},
[CPRMAN_CLOCK_UART] = {
.cm_ctl = 0x00000296,
.cm_div = 0x0000a6ab,
},
[CPRMAN_CLOCK_VEC] = {
.cm_ctl = 0x00000097,
.cm_div = 0x00002000,
},
[CPRMAN_CLOCK_PULSE] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_SDC] = {
.cm_ctl = 0x00004006,
.cm_div = 0x00003000,
},
[CPRMAN_CLOCK_ARM] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
[CPRMAN_CLOCK_AVEO] = {
.cm_ctl = 0x00000000,
.cm_div = 0x00000000,
},
[CPRMAN_CLOCK_EMMC] = {
.cm_ctl = 0x00000295,
.cm_div = 0x00006000,
},
[CPRMAN_CLOCK_EMMC2] = {
.cm_ctl = 0, /* unknown */
.cm_div = 0
},
};
#endif
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