// SPDX-License-Identifier: GPL-2.0-only
// Copyright (C) 2014 Broadcom Corporation
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/clkdev.h>
#include <linux/of_address.h>
#include <linux/delay.h>
#include <dt-bindings/clock/bcm-cygnus.h>
#include "clk-iproc.h"
#define REG_VAL(o, s, w) { .offset = o, .shift = s, .width = w, }
#define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
.pwr_shift = ps, .iso_shift = is }
#define SW_CTRL_VAL(o, s) { .offset = o, .shift = s, }
#define ASIU_DIV_VAL(o, es, hs, hw, ls, lw) \
{ .offset = o, .en_shift = es, .high_shift = hs, \
.high_width = hw, .low_shift = ls, .low_width = lw }
#define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \
.p_reset_shift = prs }
#define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, .ki_shift = kis,\
.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
.ka_width = kaw }
#define VCO_CTRL_VAL(uo, lo) { .u_offset = uo, .l_offset = lo }
#define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
.hold_shift = hs, .bypass_shift = bs }
#define ASIU_GATE_VAL(o, es) { .offset = o, .en_shift = es }
static void __init cygnus_armpll_init(struct device_node *node)
{
iproc_armpll_setup(node);
}
CLK_OF_DECLARE(cygnus_armpll, "brcm,cygnus-armpll" , cygnus_armpll_init);
static const struct iproc_pll_ctrl genpll = {
.flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC |
IPROC_CLK_PLL_NEEDS_SW_CFG,
.aon = AON_VAL(0 x0, 2 , 1 , 0 ),
.reset = RESET_VAL(0 x0, 11 , 10 ),
.dig_filter = DF_VAL(0 x0, 4 , 3 , 0 , 4 , 7 , 3 ),
.sw_ctrl = SW_CTRL_VAL(0 x10, 31 ),
.ndiv_int = REG_VAL(0 x10, 20 , 10 ),
.ndiv_frac = REG_VAL(0 x10, 0 , 20 ),
.pdiv = REG_VAL(0 x14, 0 , 4 ),
.vco_ctrl = VCO_CTRL_VAL(0 x18, 0 x1c),
.status = REG_VAL(0 x28, 12 , 1 ),
};
static const struct iproc_clk_ctrl genpll_clk[] = {
[BCM_CYGNUS_GENPLL_AXI21_CLK] = {
.channel = BCM_CYGNUS_GENPLL_AXI21_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x4, 6 , 0 , 12 ),
.mdiv = REG_VAL(0 x20, 0 , 8 ),
},
[BCM_CYGNUS_GENPLL_250MHZ_CLK] = {
.channel = BCM_CYGNUS_GENPLL_250MHZ_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x4, 7 , 1 , 13 ),
.mdiv = REG_VAL(0 x20, 10 , 8 ),
},
[BCM_CYGNUS_GENPLL_IHOST_SYS_CLK] = {
.channel = BCM_CYGNUS_GENPLL_IHOST_SYS_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x4, 8 , 2 , 14 ),
.mdiv = REG_VAL(0 x20, 20 , 8 ),
},
[BCM_CYGNUS_GENPLL_ENET_SW_CLK] = {
.channel = BCM_CYGNUS_GENPLL_ENET_SW_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x4, 9 , 3 , 15 ),
.mdiv = REG_VAL(0 x24, 0 , 8 ),
},
[BCM_CYGNUS_GENPLL_AUDIO_125_CLK] = {
.channel = BCM_CYGNUS_GENPLL_AUDIO_125_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x4, 10 , 4 , 16 ),
.mdiv = REG_VAL(0 x24, 10 , 8 ),
},
[BCM_CYGNUS_GENPLL_CAN_CLK] = {
.channel = BCM_CYGNUS_GENPLL_CAN_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x4, 11 , 5 , 17 ),
.mdiv = REG_VAL(0 x24, 20 , 8 ),
},
};
static void __init cygnus_genpll_clk_init(struct device_node *node)
{
iproc_pll_clk_setup(node, &genpll, NULL, 0 , genpll_clk,
ARRAY_SIZE(genpll_clk));
}
CLK_OF_DECLARE(cygnus_genpll, "brcm,cygnus-genpll" , cygnus_genpll_clk_init);
static const struct iproc_pll_ctrl lcpll0 = {
.flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG,
.aon = AON_VAL(0 x0, 2 , 5 , 4 ),
.reset = RESET_VAL(0 x0, 31 , 30 ),
.dig_filter = DF_VAL(0 x0, 27 , 3 , 23 , 4 , 19 , 4 ),
.sw_ctrl = SW_CTRL_VAL(0 x4, 31 ),
.ndiv_int = REG_VAL(0 x4, 16 , 10 ),
.pdiv = REG_VAL(0 x4, 26 , 4 ),
.vco_ctrl = VCO_CTRL_VAL(0 x10, 0 x14),
.status = REG_VAL(0 x18, 12 , 1 ),
};
static const struct iproc_clk_ctrl lcpll0_clk[] = {
[BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK] = {
.channel = BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x0, 7 , 1 , 13 ),
.mdiv = REG_VAL(0 x8, 0 , 8 ),
},
[BCM_CYGNUS_LCPLL0_DDR_PHY_CLK] = {
.channel = BCM_CYGNUS_LCPLL0_DDR_PHY_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x0, 8 , 2 , 14 ),
.mdiv = REG_VAL(0 x8, 10 , 8 ),
},
[BCM_CYGNUS_LCPLL0_SDIO_CLK] = {
.channel = BCM_CYGNUS_LCPLL0_SDIO_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x0, 9 , 3 , 15 ),
.mdiv = REG_VAL(0 x8, 20 , 8 ),
},
[BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK] = {
.channel = BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x0, 10 , 4 , 16 ),
.mdiv = REG_VAL(0 xc, 0 , 8 ),
},
[BCM_CYGNUS_LCPLL0_SMART_CARD_CLK] = {
.channel = BCM_CYGNUS_LCPLL0_SMART_CARD_CLK,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x0, 11 , 5 , 17 ),
.mdiv = REG_VAL(0 xc, 10 , 8 ),
},
[BCM_CYGNUS_LCPLL0_CH5_UNUSED] = {
.channel = BCM_CYGNUS_LCPLL0_CH5_UNUSED,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x0, 12 , 6 , 18 ),
.mdiv = REG_VAL(0 xc, 20 , 8 ),
},
};
static void __init cygnus_lcpll0_clk_init(struct device_node *node)
{
iproc_pll_clk_setup(node, &lcpll0, NULL, 0 , lcpll0_clk,
ARRAY_SIZE(lcpll0_clk));
}
CLK_OF_DECLARE(cygnus_lcpll0, "brcm,cygnus-lcpll0" , cygnus_lcpll0_clk_init);
/*
* MIPI PLL VCO frequency parameter table
*/
static const struct iproc_pll_vco_param mipipll_vco_params[] = {
/* rate (Hz) ndiv_int ndiv_frac pdiv */
{ 750000000 UL, 30 , 0 , 1 },
{ 1000000000 UL, 40 , 0 , 1 },
{ 1350000000 ul, 54 , 0 , 1 },
{ 2000000000 UL, 80 , 0 , 1 },
{ 2100000000 UL, 84 , 0 , 1 },
{ 2250000000 UL, 90 , 0 , 1 },
{ 2500000000 UL, 100 , 0 , 1 },
{ 2700000000 UL, 54 , 0 , 0 },
{ 2975000000 UL, 119 , 0 , 1 },
{ 3100000000 UL, 124 , 0 , 1 },
{ 3150000000 UL, 126 , 0 , 1 },
};
static const struct iproc_pll_ctrl mipipll = {
.flags = IPROC_CLK_PLL_ASIU | IPROC_CLK_PLL_HAS_NDIV_FRAC |
IPROC_CLK_NEEDS_READ_BACK,
.aon = AON_VAL(0 x0, 4 , 17 , 16 ),
.asiu = ASIU_GATE_VAL(0 x0, 3 ),
.reset = RESET_VAL(0 x0, 11 , 10 ),
.dig_filter = DF_VAL(0 x0, 4 , 3 , 0 , 4 , 7 , 4 ),
.ndiv_int = REG_VAL(0 x10, 20 , 10 ),
.ndiv_frac = REG_VAL(0 x10, 0 , 20 ),
.pdiv = REG_VAL(0 x14, 0 , 4 ),
.vco_ctrl = VCO_CTRL_VAL(0 x18, 0 x1c),
.status = REG_VAL(0 x28, 12 , 1 ),
};
static const struct iproc_clk_ctrl mipipll_clk[] = {
[BCM_CYGNUS_MIPIPLL_CH0_UNUSED] = {
.channel = BCM_CYGNUS_MIPIPLL_CH0_UNUSED,
.flags = IPROC_CLK_NEEDS_READ_BACK,
.enable = ENABLE_VAL(0 x4, 12 , 6 , 18 ),
.mdiv = REG_VAL(0 x20, 0 , 8 ),
},
[BCM_CYGNUS_MIPIPLL_CH1_LCD] = {
.channel = BCM_CYGNUS_MIPIPLL_CH1_LCD,
.flags = IPROC_CLK_NEEDS_READ_BACK,
.enable = ENABLE_VAL(0 x4, 13 , 7 , 19 ),
.mdiv = REG_VAL(0 x20, 10 , 8 ),
},
[BCM_CYGNUS_MIPIPLL_CH2_V3D] = {
.channel = BCM_CYGNUS_MIPIPLL_CH2_V3D,
.flags = IPROC_CLK_NEEDS_READ_BACK,
.enable = ENABLE_VAL(0 x4, 14 , 8 , 20 ),
.mdiv = REG_VAL(0 x20, 20 , 8 ),
},
[BCM_CYGNUS_MIPIPLL_CH3_UNUSED] = {
.channel = BCM_CYGNUS_MIPIPLL_CH3_UNUSED,
.flags = IPROC_CLK_NEEDS_READ_BACK,
.enable = ENABLE_VAL(0 x4, 15 , 9 , 21 ),
.mdiv = REG_VAL(0 x24, 0 , 8 ),
},
[BCM_CYGNUS_MIPIPLL_CH4_UNUSED] = {
.channel = BCM_CYGNUS_MIPIPLL_CH4_UNUSED,
.flags = IPROC_CLK_NEEDS_READ_BACK,
.enable = ENABLE_VAL(0 x4, 16 , 10 , 22 ),
.mdiv = REG_VAL(0 x24, 10 , 8 ),
},
[BCM_CYGNUS_MIPIPLL_CH5_UNUSED] = {
.channel = BCM_CYGNUS_MIPIPLL_CH5_UNUSED,
.flags = IPROC_CLK_NEEDS_READ_BACK,
.enable = ENABLE_VAL(0 x4, 17 , 11 , 23 ),
.mdiv = REG_VAL(0 x24, 20 , 8 ),
},
};
static void __init cygnus_mipipll_clk_init(struct device_node *node)
{
iproc_pll_clk_setup(node, &mipipll, mipipll_vco_params,
ARRAY_SIZE(mipipll_vco_params), mipipll_clk,
ARRAY_SIZE(mipipll_clk));
}
CLK_OF_DECLARE(cygnus_mipipll, "brcm,cygnus-mipipll" , cygnus_mipipll_clk_init);
static const struct iproc_asiu_div asiu_div[] = {
[BCM_CYGNUS_ASIU_KEYPAD_CLK] = ASIU_DIV_VAL(0 x0, 31 , 16 , 10 , 0 , 10 ),
[BCM_CYGNUS_ASIU_ADC_CLK] = ASIU_DIV_VAL(0 x4, 31 , 16 , 10 , 0 , 10 ),
[BCM_CYGNUS_ASIU_PWM_CLK] = ASIU_DIV_VAL(0 x8, 31 , 16 , 10 , 0 , 10 ),
};
static const struct iproc_asiu_gate asiu_gate[] = {
[BCM_CYGNUS_ASIU_KEYPAD_CLK] = ASIU_GATE_VAL(0 x0, 7 ),
[BCM_CYGNUS_ASIU_ADC_CLK] = ASIU_GATE_VAL(0 x0, 9 ),
[BCM_CYGNUS_ASIU_PWM_CLK] = ASIU_GATE_VAL(IPROC_CLK_INVALID_OFFSET, 0 ),
};
static void __init cygnus_asiu_init(struct device_node *node)
{
iproc_asiu_setup(node, asiu_div, asiu_gate, ARRAY_SIZE(asiu_div));
}
CLK_OF_DECLARE(cygnus_asiu_clk, "brcm,cygnus-asiu-clk" , cygnus_asiu_init);
static const struct iproc_pll_ctrl audiopll = {
.flags = IPROC_CLK_PLL_NEEDS_SW_CFG | IPROC_CLK_PLL_HAS_NDIV_FRAC |
IPROC_CLK_PLL_USER_MODE_ON | IPROC_CLK_PLL_RESET_ACTIVE_LOW |
IPROC_CLK_PLL_CALC_PARAM,
.reset = RESET_VAL(0 x5c, 0 , 1 ),
.dig_filter = DF_VAL(0 x48, 0 , 3 , 6 , 4 , 3 , 3 ),
.sw_ctrl = SW_CTRL_VAL(0 x4, 0 ),
.ndiv_int = REG_VAL(0 x8, 0 , 10 ),
.ndiv_frac = REG_VAL(0 x8, 10 , 20 ),
.pdiv = REG_VAL(0 x44, 0 , 4 ),
.vco_ctrl = VCO_CTRL_VAL(0 x0c, 0 x10),
.status = REG_VAL(0 x54, 0 , 1 ),
.macro_mode = REG_VAL(0 x0, 0 , 3 ),
};
static const struct iproc_clk_ctrl audiopll_clk[] = {
[BCM_CYGNUS_AUDIOPLL_CH0] = {
.channel = BCM_CYGNUS_AUDIOPLL_CH0,
.flags = IPROC_CLK_AON | IPROC_CLK_MCLK_DIV_BY_2,
.enable = ENABLE_VAL(0 x14, 8 , 10 , 9 ),
.mdiv = REG_VAL(0 x14, 0 , 8 ),
},
[BCM_CYGNUS_AUDIOPLL_CH1] = {
.channel = BCM_CYGNUS_AUDIOPLL_CH1,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x18, 8 , 10 , 9 ),
.mdiv = REG_VAL(0 x18, 0 , 8 ),
},
[BCM_CYGNUS_AUDIOPLL_CH2] = {
.channel = BCM_CYGNUS_AUDIOPLL_CH2,
.flags = IPROC_CLK_AON,
.enable = ENABLE_VAL(0 x1c, 8 , 10 , 9 ),
.mdiv = REG_VAL(0 x1c, 0 , 8 ),
},
};
static void __init cygnus_audiopll_clk_init(struct device_node *node)
{
iproc_pll_clk_setup(node, &audiopll, NULL, 0 ,
audiopll_clk, ARRAY_SIZE(audiopll_clk));
}
CLK_OF_DECLARE(cygnus_audiopll, "brcm,cygnus-audiopll" ,
cygnus_audiopll_clk_init);
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(vorverarbeitet am 2026-06-07)
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