diff options
Diffstat (limited to 'drivers/clk/qcom/clk-branch.h')
| -rw-r--r-- | drivers/clk/qcom/clk-branch.h | 92 |
1 files changed, 80 insertions, 12 deletions
diff --git a/drivers/clk/qcom/clk-branch.h b/drivers/clk/qcom/clk-branch.h index 284df3f3c55f..6bc2ba2b5350 100644 --- a/drivers/clk/qcom/clk-branch.h +++ b/drivers/clk/qcom/clk-branch.h @@ -1,19 +1,10 @@ -/* - * Copyright (c) 2013, The Linux Foundation. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2013, The Linux Foundation. All rights reserved. */ #ifndef __QCOM_CLK_BRANCH_H__ #define __QCOM_CLK_BRANCH_H__ +#include <linux/bitfield.h> #include <linux/clk-provider.h> #include "clk-regmap.h" @@ -42,15 +33,92 @@ struct clk_branch { #define BRANCH_HALT_ENABLE 1 /* pol: 0 = halt */ #define BRANCH_HALT_ENABLE_VOTED (BRANCH_HALT_ENABLE | BRANCH_VOTED) #define BRANCH_HALT_DELAY 2 /* No bit to check; just delay */ +#define BRANCH_HALT_SKIP 3 /* Don't check halt bit */ struct clk_regmap clkr; }; +/** + * struct clk_mem_branch - gating clock which are associated with memories + * + * @mem_enable_reg: branch clock memory gating register + * @mem_ack_reg: branch clock memory ack register + * @mem_enable_ack_mask: branch clock memory enable and ack field in @mem_ack_reg + * @mem_enable_mask: branch clock memory enable mask + * @mem_enable_invert: branch clock memory enable and disable has invert logic + * @branch: branch clock gating handle + * + * Clock which can gate its memories. + */ +struct clk_mem_branch { + u32 mem_enable_reg; + u32 mem_ack_reg; + u32 mem_enable_ack_mask; + u32 mem_enable_mask; + bool mem_enable_invert; + struct clk_branch branch; +}; + +/* Branch clock common bits for HLOS-owned clocks */ +#define CBCR_CLK_OFF BIT(31) +#define CBCR_NOC_FSM_STATUS GENMASK(30, 28) + #define FSM_STATUS_ON BIT(1) +#define CBCR_FORCE_MEM_CORE_ON BIT(14) +#define CBCR_FORCE_MEM_PERIPH_ON BIT(13) +#define CBCR_FORCE_MEM_PERIPH_OFF BIT(12) +#define CBCR_WAKEUP GENMASK(11, 8) +#define CBCR_SLEEP GENMASK(7, 4) +#define CBCR_CLOCK_ENABLE BIT(0) + +static inline void qcom_branch_set_force_mem_core(struct regmap *regmap, + struct clk_branch clk, bool on) +{ + regmap_update_bits(regmap, clk.halt_reg, CBCR_FORCE_MEM_CORE_ON, + on ? CBCR_FORCE_MEM_CORE_ON : 0); +} + +static inline void qcom_branch_set_force_periph_on(struct regmap *regmap, + struct clk_branch clk, bool on) +{ + regmap_update_bits(regmap, clk.halt_reg, CBCR_FORCE_MEM_PERIPH_ON, + on ? CBCR_FORCE_MEM_PERIPH_ON : 0); +} + +static inline void qcom_branch_set_force_periph_off(struct regmap *regmap, + struct clk_branch clk, bool on) +{ + regmap_update_bits(regmap, clk.halt_reg, CBCR_FORCE_MEM_PERIPH_OFF, + on ? CBCR_FORCE_MEM_PERIPH_OFF : 0); +} + +static inline void qcom_branch_set_wakeup(struct regmap *regmap, struct clk_branch clk, u32 val) +{ + regmap_update_bits(regmap, clk.halt_reg, CBCR_WAKEUP, + FIELD_PREP(CBCR_WAKEUP, val)); +} + +static inline void qcom_branch_set_sleep(struct regmap *regmap, struct clk_branch clk, u32 val) +{ + regmap_update_bits(regmap, clk.halt_reg, CBCR_SLEEP, + FIELD_PREP(CBCR_SLEEP, val)); +} + +static inline void qcom_branch_set_clk_en(struct regmap *regmap, u32 cbcr) +{ + regmap_update_bits(regmap, cbcr, CBCR_CLOCK_ENABLE, CBCR_CLOCK_ENABLE); +} + extern const struct clk_ops clk_branch_ops; extern const struct clk_ops clk_branch2_ops; extern const struct clk_ops clk_branch_simple_ops; +extern const struct clk_ops clk_branch2_aon_ops; +extern const struct clk_ops clk_branch2_mem_ops; +extern const struct clk_ops clk_branch2_prepare_ops; #define to_clk_branch(_hw) \ container_of(to_clk_regmap(_hw), struct clk_branch, clkr) +#define to_clk_mem_branch(_hw) \ + container_of(to_clk_branch(_hw), struct clk_mem_branch, branch) + #endif |