diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/clk/sifive/Makefile | 2 | ||||
| -rw-r--r-- | drivers/clk/sifive/fu540-prci.c | 88 | ||||
| -rw-r--r-- | drivers/clk/sifive/fu540-prci.h | 91 | ||||
| -rw-r--r-- | drivers/clk/sifive/fu740-prci.c | 133 | ||||
| -rw-r--r-- | drivers/clk/sifive/fu740-prci.h | 130 | ||||
| -rw-r--r-- | drivers/clk/sifive/sifive-prci.c | 5 |
6 files changed, 214 insertions, 235 deletions
diff --git a/drivers/clk/sifive/Makefile b/drivers/clk/sifive/Makefile index 7b06fc04e6b3..efdf01f1c8d5 100644 --- a/drivers/clk/sifive/Makefile +++ b/drivers/clk/sifive/Makefile @@ -1,2 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -obj-$(CONFIG_CLK_SIFIVE_PRCI) += sifive-prci.o fu540-prci.o fu740-prci.o +obj-$(CONFIG_CLK_SIFIVE_PRCI) += sifive-prci.o diff --git a/drivers/clk/sifive/fu540-prci.c b/drivers/clk/sifive/fu540-prci.c deleted file mode 100644 index 672c782ad604..000000000000 --- a/drivers/clk/sifive/fu540-prci.c +++ /dev/null @@ -1,88 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2018-2022 SiFive, Inc. - * Copyright (C) 2018-2019 Wesley Terpstra - * Copyright (C) 2018-2019 Paul Walmsley - * Copyright (C) 2020-2022 Zong Li - * - * The FU540 PRCI implements clock and reset control for the SiFive - * FU540-C000 chip. This driver assumes that it has sole control - * over all PRCI resources. - * - * This driver is based on the PRCI driver written by Wesley Terpstra: - * https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60 - * - * References: - * - SiFive FU540-C000 manual v1p0, Chapter 7 "Clocking and Reset" - */ - -#include <linux/module.h> - -#include <dt-bindings/clock/sifive-fu540-prci.h> - -#include "sifive-prci.h" - -/* PRCI integration data for each WRPLL instance */ - -static struct __prci_wrpll_data sifive_fu540_prci_corepll_data = { - .cfg0_offs = PRCI_COREPLLCFG0_OFFSET, - .cfg1_offs = PRCI_COREPLLCFG1_OFFSET, - .enable_bypass = sifive_prci_coreclksel_use_hfclk, - .disable_bypass = sifive_prci_coreclksel_use_corepll, -}; - -static struct __prci_wrpll_data sifive_fu540_prci_ddrpll_data = { - .cfg0_offs = PRCI_DDRPLLCFG0_OFFSET, - .cfg1_offs = PRCI_DDRPLLCFG1_OFFSET, -}; - -static struct __prci_wrpll_data sifive_fu540_prci_gemgxlpll_data = { - .cfg0_offs = PRCI_GEMGXLPLLCFG0_OFFSET, - .cfg1_offs = PRCI_GEMGXLPLLCFG1_OFFSET, -}; - -/* Linux clock framework integration */ - -static const struct clk_ops sifive_fu540_prci_wrpll_clk_ops = { - .set_rate = sifive_prci_wrpll_set_rate, - .round_rate = sifive_prci_wrpll_round_rate, - .recalc_rate = sifive_prci_wrpll_recalc_rate, - .enable = sifive_prci_clock_enable, - .disable = sifive_prci_clock_disable, - .is_enabled = sifive_clk_is_enabled, -}; - -static const struct clk_ops sifive_fu540_prci_wrpll_ro_clk_ops = { - .recalc_rate = sifive_prci_wrpll_recalc_rate, -}; - -static const struct clk_ops sifive_fu540_prci_tlclksel_clk_ops = { - .recalc_rate = sifive_prci_tlclksel_recalc_rate, -}; - -/* List of clock controls provided by the PRCI */ -struct __prci_clock __prci_init_clocks_fu540[] = { - [FU540_PRCI_CLK_COREPLL] = { - .name = "corepll", - .parent_name = "hfclk", - .ops = &sifive_fu540_prci_wrpll_clk_ops, - .pwd = &sifive_fu540_prci_corepll_data, - }, - [FU540_PRCI_CLK_DDRPLL] = { - .name = "ddrpll", - .parent_name = "hfclk", - .ops = &sifive_fu540_prci_wrpll_ro_clk_ops, - .pwd = &sifive_fu540_prci_ddrpll_data, - }, - [FU540_PRCI_CLK_GEMGXLPLL] = { - .name = "gemgxlpll", - .parent_name = "hfclk", - .ops = &sifive_fu540_prci_wrpll_clk_ops, - .pwd = &sifive_fu540_prci_gemgxlpll_data, - }, - [FU540_PRCI_CLK_TLCLK] = { - .name = "tlclk", - .parent_name = "corepll", - .ops = &sifive_fu540_prci_tlclksel_clk_ops, - }, -}; diff --git a/drivers/clk/sifive/fu540-prci.h b/drivers/clk/sifive/fu540-prci.h index c220677dc010..e0173324f3c5 100644 --- a/drivers/clk/sifive/fu540-prci.h +++ b/drivers/clk/sifive/fu540-prci.h @@ -1,16 +1,99 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* - * Copyright (C) 2020 SiFive, Inc. - * Zong Li + * Copyright (C) 2018-2021 SiFive, Inc. + * Copyright (C) 2018-2019 Wesley Terpstra + * Copyright (C) 2018-2019 Paul Walmsley + * Copyright (C) 2020-2021 Zong Li + * + * The FU540 PRCI implements clock and reset control for the SiFive + * FU540-C000 chip. This driver assumes that it has sole control + * over all PRCI resources. + * + * This driver is based on the PRCI driver written by Wesley Terpstra: + * https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60 + * + * References: + * - SiFive FU540-C000 manual v1p0, Chapter 7 "Clocking and Reset" */ #ifndef __SIFIVE_CLK_FU540_PRCI_H #define __SIFIVE_CLK_FU540_PRCI_H + +#include <linux/module.h> + +#include <dt-bindings/clock/sifive-fu540-prci.h> + #include "sifive-prci.h" -#define NUM_CLOCK_FU540 4 +/* PRCI integration data for each WRPLL instance */ + +static struct __prci_wrpll_data sifive_fu540_prci_corepll_data = { + .cfg0_offs = PRCI_COREPLLCFG0_OFFSET, + .cfg1_offs = PRCI_COREPLLCFG1_OFFSET, + .enable_bypass = sifive_prci_coreclksel_use_hfclk, + .disable_bypass = sifive_prci_coreclksel_use_corepll, +}; + +static struct __prci_wrpll_data sifive_fu540_prci_ddrpll_data = { + .cfg0_offs = PRCI_DDRPLLCFG0_OFFSET, + .cfg1_offs = PRCI_DDRPLLCFG1_OFFSET, +}; + +static struct __prci_wrpll_data sifive_fu540_prci_gemgxlpll_data = { + .cfg0_offs = PRCI_GEMGXLPLLCFG0_OFFSET, + .cfg1_offs = PRCI_GEMGXLPLLCFG1_OFFSET, +}; + +/* Linux clock framework integration */ + +static const struct clk_ops sifive_fu540_prci_wrpll_clk_ops = { + .set_rate = sifive_prci_wrpll_set_rate, + .round_rate = sifive_prci_wrpll_round_rate, + .recalc_rate = sifive_prci_wrpll_recalc_rate, + .enable = sifive_prci_clock_enable, + .disable = sifive_prci_clock_disable, + .is_enabled = sifive_clk_is_enabled, +}; + +static const struct clk_ops sifive_fu540_prci_wrpll_ro_clk_ops = { + .recalc_rate = sifive_prci_wrpll_recalc_rate, +}; + +static const struct clk_ops sifive_fu540_prci_tlclksel_clk_ops = { + .recalc_rate = sifive_prci_tlclksel_recalc_rate, +}; + +/* List of clock controls provided by the PRCI */ +static struct __prci_clock __prci_init_clocks_fu540[] = { + [FU540_PRCI_CLK_COREPLL] = { + .name = "corepll", + .parent_name = "hfclk", + .ops = &sifive_fu540_prci_wrpll_clk_ops, + .pwd = &sifive_fu540_prci_corepll_data, + }, + [FU540_PRCI_CLK_DDRPLL] = { + .name = "ddrpll", + .parent_name = "hfclk", + .ops = &sifive_fu540_prci_wrpll_ro_clk_ops, + .pwd = &sifive_fu540_prci_ddrpll_data, + }, + [FU540_PRCI_CLK_GEMGXLPLL] = { + .name = "gemgxlpll", + .parent_name = "hfclk", + .ops = &sifive_fu540_prci_wrpll_clk_ops, + .pwd = &sifive_fu540_prci_gemgxlpll_data, + }, + [FU540_PRCI_CLK_TLCLK] = { + .name = "tlclk", + .parent_name = "corepll", + .ops = &sifive_fu540_prci_tlclksel_clk_ops, + }, +}; -extern struct __prci_clock __prci_init_clocks_fu540[NUM_CLOCK_FU540]; +static const struct prci_clk_desc prci_clk_fu540 = { + .clks = __prci_init_clocks_fu540, + .num_clks = ARRAY_SIZE(__prci_init_clocks_fu540), +}; #endif /* __SIFIVE_CLK_FU540_PRCI_H */ diff --git a/drivers/clk/sifive/fu740-prci.c b/drivers/clk/sifive/fu740-prci.c deleted file mode 100644 index f27d1a42d946..000000000000 --- a/drivers/clk/sifive/fu740-prci.c +++ /dev/null @@ -1,133 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2020-2022 SiFive, Inc. - * Copyright (C) 2020-2022 Zong Li - */ - -#include <linux/module.h> - -#include <dt-bindings/clock/sifive-fu740-prci.h> - -#include "sifive-prci.h" - -/* PRCI integration data for each WRPLL instance */ - -static struct __prci_wrpll_data sifive_fu740_prci_corepll_data = { - .cfg0_offs = PRCI_COREPLLCFG0_OFFSET, - .cfg1_offs = PRCI_COREPLLCFG1_OFFSET, - .enable_bypass = sifive_prci_coreclksel_use_hfclk, - .disable_bypass = sifive_prci_coreclksel_use_final_corepll, -}; - -static struct __prci_wrpll_data sifive_fu740_prci_ddrpll_data = { - .cfg0_offs = PRCI_DDRPLLCFG0_OFFSET, - .cfg1_offs = PRCI_DDRPLLCFG1_OFFSET, -}; - -static struct __prci_wrpll_data sifive_fu740_prci_gemgxlpll_data = { - .cfg0_offs = PRCI_GEMGXLPLLCFG0_OFFSET, - .cfg1_offs = PRCI_GEMGXLPLLCFG1_OFFSET, -}; - -static struct __prci_wrpll_data sifive_fu740_prci_dvfscorepll_data = { - .cfg0_offs = PRCI_DVFSCOREPLLCFG0_OFFSET, - .cfg1_offs = PRCI_DVFSCOREPLLCFG1_OFFSET, - .enable_bypass = sifive_prci_corepllsel_use_corepll, - .disable_bypass = sifive_prci_corepllsel_use_dvfscorepll, -}; - -static struct __prci_wrpll_data sifive_fu740_prci_hfpclkpll_data = { - .cfg0_offs = PRCI_HFPCLKPLLCFG0_OFFSET, - .cfg1_offs = PRCI_HFPCLKPLLCFG1_OFFSET, - .enable_bypass = sifive_prci_hfpclkpllsel_use_hfclk, - .disable_bypass = sifive_prci_hfpclkpllsel_use_hfpclkpll, -}; - -static struct __prci_wrpll_data sifive_fu740_prci_cltxpll_data = { - .cfg0_offs = PRCI_CLTXPLLCFG0_OFFSET, - .cfg1_offs = PRCI_CLTXPLLCFG1_OFFSET, -}; - -/* Linux clock framework integration */ - -static const struct clk_ops sifive_fu740_prci_wrpll_clk_ops = { - .set_rate = sifive_prci_wrpll_set_rate, - .round_rate = sifive_prci_wrpll_round_rate, - .recalc_rate = sifive_prci_wrpll_recalc_rate, - .enable = sifive_prci_clock_enable, - .disable = sifive_prci_clock_disable, - .is_enabled = sifive_clk_is_enabled, -}; - -static const struct clk_ops sifive_fu740_prci_wrpll_ro_clk_ops = { - .recalc_rate = sifive_prci_wrpll_recalc_rate, -}; - -static const struct clk_ops sifive_fu740_prci_tlclksel_clk_ops = { - .recalc_rate = sifive_prci_tlclksel_recalc_rate, -}; - -static const struct clk_ops sifive_fu740_prci_hfpclkplldiv_clk_ops = { - .recalc_rate = sifive_prci_hfpclkplldiv_recalc_rate, -}; - -static const struct clk_ops sifive_fu740_prci_pcie_aux_clk_ops = { - .enable = sifive_prci_pcie_aux_clock_enable, - .disable = sifive_prci_pcie_aux_clock_disable, - .is_enabled = sifive_prci_pcie_aux_clock_is_enabled, -}; - -/* List of clock controls provided by the PRCI */ -struct __prci_clock __prci_init_clocks_fu740[] = { - [FU740_PRCI_CLK_COREPLL] = { - .name = "corepll", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_wrpll_clk_ops, - .pwd = &sifive_fu740_prci_corepll_data, - }, - [FU740_PRCI_CLK_DDRPLL] = { - .name = "ddrpll", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_wrpll_ro_clk_ops, - .pwd = &sifive_fu740_prci_ddrpll_data, - }, - [FU740_PRCI_CLK_GEMGXLPLL] = { - .name = "gemgxlpll", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_wrpll_clk_ops, - .pwd = &sifive_fu740_prci_gemgxlpll_data, - }, - [FU740_PRCI_CLK_DVFSCOREPLL] = { - .name = "dvfscorepll", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_wrpll_clk_ops, - .pwd = &sifive_fu740_prci_dvfscorepll_data, - }, - [FU740_PRCI_CLK_HFPCLKPLL] = { - .name = "hfpclkpll", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_wrpll_clk_ops, - .pwd = &sifive_fu740_prci_hfpclkpll_data, - }, - [FU740_PRCI_CLK_CLTXPLL] = { - .name = "cltxpll", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_wrpll_clk_ops, - .pwd = &sifive_fu740_prci_cltxpll_data, - }, - [FU740_PRCI_CLK_TLCLK] = { - .name = "tlclk", - .parent_name = "corepll", - .ops = &sifive_fu740_prci_tlclksel_clk_ops, - }, - [FU740_PRCI_CLK_PCLK] = { - .name = "pclk", - .parent_name = "hfpclkpll", - .ops = &sifive_fu740_prci_hfpclkplldiv_clk_ops, - }, - [FU740_PRCI_CLK_PCIE_AUX] = { - .name = "pcie_aux", - .parent_name = "hfclk", - .ops = &sifive_fu740_prci_pcie_aux_clk_ops, - }, -}; diff --git a/drivers/clk/sifive/fu740-prci.h b/drivers/clk/sifive/fu740-prci.h index 511a0bf7ba2b..f31cd30fc395 100644 --- a/drivers/clk/sifive/fu740-prci.h +++ b/drivers/clk/sifive/fu740-prci.h @@ -1,17 +1,139 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* - * Copyright (C) 2020 SiFive, Inc. - * Zong Li + * Copyright (C) 2020-2021 SiFive, Inc. + * Copyright (C) 2020-2021 Zong Li */ #ifndef __SIFIVE_CLK_FU740_PRCI_H #define __SIFIVE_CLK_FU740_PRCI_H +#include <linux/module.h> + +#include <dt-bindings/clock/sifive-fu740-prci.h> + #include "sifive-prci.h" -#define NUM_CLOCK_FU740 9 +/* PRCI integration data for each WRPLL instance */ + +static struct __prci_wrpll_data sifive_fu740_prci_corepll_data = { + .cfg0_offs = PRCI_COREPLLCFG0_OFFSET, + .cfg1_offs = PRCI_COREPLLCFG1_OFFSET, + .enable_bypass = sifive_prci_coreclksel_use_hfclk, + .disable_bypass = sifive_prci_coreclksel_use_final_corepll, +}; + +static struct __prci_wrpll_data sifive_fu740_prci_ddrpll_data = { + .cfg0_offs = PRCI_DDRPLLCFG0_OFFSET, + .cfg1_offs = PRCI_DDRPLLCFG1_OFFSET, +}; + +static struct __prci_wrpll_data sifive_fu740_prci_gemgxlpll_data = { + .cfg0_offs = PRCI_GEMGXLPLLCFG0_OFFSET, + .cfg1_offs = PRCI_GEMGXLPLLCFG1_OFFSET, +}; + +static struct __prci_wrpll_data sifive_fu740_prci_dvfscorepll_data = { + .cfg0_offs = PRCI_DVFSCOREPLLCFG0_OFFSET, + .cfg1_offs = PRCI_DVFSCOREPLLCFG1_OFFSET, + .enable_bypass = sifive_prci_corepllsel_use_corepll, + .disable_bypass = sifive_prci_corepllsel_use_dvfscorepll, +}; + +static struct __prci_wrpll_data sifive_fu740_prci_hfpclkpll_data = { + .cfg0_offs = PRCI_HFPCLKPLLCFG0_OFFSET, + .cfg1_offs = PRCI_HFPCLKPLLCFG1_OFFSET, + .enable_bypass = sifive_prci_hfpclkpllsel_use_hfclk, + .disable_bypass = sifive_prci_hfpclkpllsel_use_hfpclkpll, +}; + +static struct __prci_wrpll_data sifive_fu740_prci_cltxpll_data = { + .cfg0_offs = PRCI_CLTXPLLCFG0_OFFSET, + .cfg1_offs = PRCI_CLTXPLLCFG1_OFFSET, +}; + +/* Linux clock framework integration */ + +static const struct clk_ops sifive_fu740_prci_wrpll_clk_ops = { + .set_rate = sifive_prci_wrpll_set_rate, + .round_rate = sifive_prci_wrpll_round_rate, + .recalc_rate = sifive_prci_wrpll_recalc_rate, + .enable = sifive_prci_clock_enable, + .disable = sifive_prci_clock_disable, + .is_enabled = sifive_clk_is_enabled, +}; -extern struct __prci_clock __prci_init_clocks_fu740[NUM_CLOCK_FU740]; +static const struct clk_ops sifive_fu740_prci_wrpll_ro_clk_ops = { + .recalc_rate = sifive_prci_wrpll_recalc_rate, +}; + +static const struct clk_ops sifive_fu740_prci_tlclksel_clk_ops = { + .recalc_rate = sifive_prci_tlclksel_recalc_rate, +}; + +static const struct clk_ops sifive_fu740_prci_hfpclkplldiv_clk_ops = { + .recalc_rate = sifive_prci_hfpclkplldiv_recalc_rate, +}; + +static const struct clk_ops sifive_fu740_prci_pcie_aux_clk_ops = { + .enable = sifive_prci_pcie_aux_clock_enable, + .disable = sifive_prci_pcie_aux_clock_disable, + .is_enabled = sifive_prci_pcie_aux_clock_is_enabled, +}; + +/* List of clock controls provided by the PRCI */ +static struct __prci_clock __prci_init_clocks_fu740[] = { + [FU740_PRCI_CLK_COREPLL] = { + .name = "corepll", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_wrpll_clk_ops, + .pwd = &sifive_fu740_prci_corepll_data, + }, + [FU740_PRCI_CLK_DDRPLL] = { + .name = "ddrpll", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_wrpll_ro_clk_ops, + .pwd = &sifive_fu740_prci_ddrpll_data, + }, + [FU740_PRCI_CLK_GEMGXLPLL] = { + .name = "gemgxlpll", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_wrpll_clk_ops, + .pwd = &sifive_fu740_prci_gemgxlpll_data, + }, + [FU740_PRCI_CLK_DVFSCOREPLL] = { + .name = "dvfscorepll", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_wrpll_clk_ops, + .pwd = &sifive_fu740_prci_dvfscorepll_data, + }, + [FU740_PRCI_CLK_HFPCLKPLL] = { + .name = "hfpclkpll", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_wrpll_clk_ops, + .pwd = &sifive_fu740_prci_hfpclkpll_data, + }, + [FU740_PRCI_CLK_CLTXPLL] = { + .name = "cltxpll", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_wrpll_clk_ops, + .pwd = &sifive_fu740_prci_cltxpll_data, + }, + [FU740_PRCI_CLK_TLCLK] = { + .name = "tlclk", + .parent_name = "corepll", + .ops = &sifive_fu740_prci_tlclksel_clk_ops, + }, + [FU740_PRCI_CLK_PCLK] = { + .name = "pclk", + .parent_name = "hfpclkpll", + .ops = &sifive_fu740_prci_hfpclkplldiv_clk_ops, + }, + [FU740_PRCI_CLK_PCIE_AUX] = { + .name = "pcie_aux", + .parent_name = "hfclk", + .ops = &sifive_fu740_prci_pcie_aux_clk_ops, + }, +}; static const struct prci_clk_desc prci_clk_fu740 = { .clks = __prci_init_clocks_fu740, diff --git a/drivers/clk/sifive/sifive-prci.c b/drivers/clk/sifive/sifive-prci.c index 80a288c59e56..916d2fc28b9c 100644 --- a/drivers/clk/sifive/sifive-prci.c +++ b/drivers/clk/sifive/sifive-prci.c @@ -12,11 +12,6 @@ #include "fu540-prci.h" #include "fu740-prci.h" -static const struct prci_clk_desc prci_clk_fu540 = { - .clks = __prci_init_clocks_fu540, - .num_clks = ARRAY_SIZE(__prci_init_clocks_fu540), -}; - /* * Private functions */ |