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[209.132.180.67]) by mx.google.com with ESMTP id s6si8290745pjq.108.2019.07.05.08.15.24; Fri, 05 Jul 2019 08:15:24 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=OZSeP17m; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728110AbfGEPPX (ORCPT + 30 others); Fri, 5 Jul 2019 11:15:23 -0400 Received: from mail-pl1-f194.google.com ([209.85.214.194]:35725 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728087AbfGEPPV (ORCPT ); Fri, 5 Jul 2019 11:15:21 -0400 Received: by mail-pl1-f194.google.com with SMTP id w24so4748421plp.2 for ; Fri, 05 Jul 2019 08:15:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=wksfUtHJF98U7A7Sm2ClghdvY0FdhoUFvh3BLqwwpUs=; b=OZSeP17m8BBfJbCaLzgJplDu1VENwg0ch+OrPXIRQRTYTGT7sAn1H6nYsBOjtHOCz9 brCIZhIRSk0RkaJhV1cCyPtOUeUcQJZT/diJBvvYmd5zCq31HzlReRlA6qvFpFov3jZ2 xvwlZw9GL9DJLF1ArmGazC6zN1wJ4e7jbVKU7SR+2XjfcYPOjMipxD6FRM2FFZHRP77e d99XoSceP3a3siQkGy2/hXfkarcBBSSorc41M51LyzvSh7HuWtc5KCeyqfyq5eHaBlT2 IkaN58IAPSykAXgV20EslgFF8KDhRIDNgYOeTWIaC7cArn5avNW+MZFkhsnS4FlyYHCn A3Tw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=wksfUtHJF98U7A7Sm2ClghdvY0FdhoUFvh3BLqwwpUs=; b=ZHcuVW/bM/pRU+Z/VC9HLx3t4X5p/WLc/IgIV6GlKyj56rfpsyWbrDI80nvGOH5S+/ s9pwO2NUD3KRmznyrxgz7Xznl6BVInEo0MTX0vDrr7zsv2zqB85W2etotWEdahcNTDB9 +JYMMmsn/26Am320ieDOAFzacocJDxF/LVgKm9QNPtXWET1QkVlA+ohe6CAl6H87SODk 7SCnyLczuCI4zTchQNQUxFyhs5kczgSZcaQKiEHH0QXBU/rEq+DfWZJIDAtXbW8iFZZV gwP5cOseh3SWwI3QtfY/lU74QRPiblV7uUHFIr4J5dnIUQOV8CYVW8K3us21Pt0tDeqi Mo3Q== X-Gm-Message-State: APjAAAVXCZL5l4X8XqDi2FGUQCESQQgIpZPXXJRSxqxjnBQBy8x4tLga 72yml8OrUdWdlMfiYmI5aUpl X-Received: by 2002:a17:902:8b82:: with SMTP id ay2mr5893720plb.164.1562339720550; Fri, 05 Jul 2019 08:15:20 -0700 (PDT) Received: from localhost.localdomain ([2409:4072:916:7317:a59d:72b6:ef7f:a938]) by smtp.gmail.com with ESMTPSA id w3sm8248778pgl.31.2019.07.05.08.15.14 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Fri, 05 Jul 2019 08:15:20 -0700 (PDT) From: Manivannan Sadhasivam To: sboyd@kernel.org, mturquette@baylibre.com, robh+dt@kernel.org Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, haitao.suo@bitmain.com, darren.tsao@bitmain.com, fisher.cheng@bitmain.com, alec.lin@bitmain.com, Manivannan Sadhasivam Subject: [PATCH 4/5] clk: Add driver for Bitmain BM1880 SoC clock controller Date: Fri, 5 Jul 2019 20:44:39 +0530 Message-Id: <20190705151440.20844-5-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190705151440.20844-1-manivannan.sadhasivam@linaro.org> References: <20190705151440.20844-1-manivannan.sadhasivam@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add common clock driver for Bitmain BM1880 SoC clock controller. Signed-off-by: Manivannan Sadhasivam --- drivers/clk/Kconfig | 6 + drivers/clk/Makefile | 1 + drivers/clk/clk-bm1880.c | 947 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 954 insertions(+) create mode 100644 drivers/clk/clk-bm1880.c -- 2.17.1 diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index fc1e0cf44995..ffc61ed85ade 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -304,6 +304,12 @@ config COMMON_CLK_FIXED_MMIO help Support for Memory Mapped IO Fixed clocks +config COMMON_CLK_BM1880 + bool "Clock driver for Bitmain BM1880 SoC" + depends on ARCH_BITMAIN || COMPILE_TEST + help + This driver supports the clocks on Bitmain BM1880 SoC. + source "drivers/clk/actions/Kconfig" source "drivers/clk/analogbits/Kconfig" source "drivers/clk/bcm/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 9ef4305d55e0..66c44b84a6f2 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o obj-$(CONFIG_COMMON_CLK_BD718XX) += clk-bd718x7.o +obj-$(CONFIG_COMMON_CLK_BM1880) += clk-bm1880.o obj-$(CONFIG_COMMON_CLK_CDCE706) += clk-cdce706.o obj-$(CONFIG_COMMON_CLK_CDCE925) += clk-cdce925.o obj-$(CONFIG_ARCH_CLPS711X) += clk-clps711x.o diff --git a/drivers/clk/clk-bm1880.c b/drivers/clk/clk-bm1880.c new file mode 100644 index 000000000000..26cdb75bb936 --- /dev/null +++ b/drivers/clk/clk-bm1880.c @@ -0,0 +1,947 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Bitmain BM1880 SoC clock driver + * + * Copyright (c) 2019 Linaro Ltd. + * Author: Manivannan Sadhasivam + */ + +#include +#include +#include + +#include + +#define BM1880_CLK_MPLL_CTL 0x00 +#define BM1880_CLK_SPLL_CTL 0x04 +#define BM1880_CLK_FPLL_CTL 0x08 +#define BM1880_CLK_DDRPLL_CTL 0x0c + +#define BM1880_CLK_ENABLE0 0x00 +#define BM1880_CLK_ENABLE1 0x04 +#define BM1880_CLK_SELECT 0x20 +#define BM1880_CLK_DIV0 0x40 +#define BM1880_CLK_DIV1 0x44 +#define BM1880_CLK_DIV2 0x48 +#define BM1880_CLK_DIV3 0x4c +#define BM1880_CLK_DIV4 0x50 +#define BM1880_CLK_DIV5 0x54 +#define BM1880_CLK_DIV6 0x58 +#define BM1880_CLK_DIV7 0x5c +#define BM1880_CLK_DIV8 0x60 +#define BM1880_CLK_DIV9 0x64 +#define BM1880_CLK_DIV10 0x68 +#define BM1880_CLK_DIV11 0x6c +#define BM1880_CLK_DIV12 0x70 +#define BM1880_CLK_DIV13 0x74 +#define BM1880_CLK_DIV14 0x78 +#define BM1880_CLK_DIV15 0x7c +#define BM1880_CLK_DIV16 0x80 +#define BM1880_CLK_DIV17 0x84 +#define BM1880_CLK_DIV18 0x88 +#define BM1880_CLK_DIV19 0x8c +#define BM1880_CLK_DIV20 0x90 +#define BM1880_CLK_DIV21 0x94 +#define BM1880_CLK_DIV22 0x98 +#define BM1880_CLK_DIV23 0x9c +#define BM1880_CLK_DIV24 0xa0 +#define BM1880_CLK_DIV25 0xa4 +#define BM1880_CLK_DIV26 0xa8 +#define BM1880_CLK_DIV27 0xac +#define BM1880_CLK_DIV28 0xb0 + +#define to_bm1880_pll_clk(_hw) container_of(_hw, struct bm1880_pll_hw_clock, hw) +#define to_bm1880_div_clk(_hw) container_of(_hw, struct bm1880_div_hw_clock, hw) + +static DEFINE_SPINLOCK(bm1880_clk_lock); + +struct bm1880_clock_data { + void __iomem *pll_base; + void __iomem *sys_base; + struct clk_onecell_data clk_data; +}; + +struct bm1880_gate_clock { + unsigned int id; + const char *name; + const char *parent; + u32 gate_reg; + s8 gate_shift; + unsigned long flags; +}; + +struct bm1880_mux_clock { + unsigned int id; + const char *name; + const char * const * parents; + s8 num_parents; + u32 reg; + s8 shift; + unsigned long flags; +}; + +struct bm1880_div_clock { + unsigned int id; + const char *name; + const char *parent; + u32 reg; + u8 shift; + u8 width; + u32 initval; + struct clk_div_table *table; + unsigned long flags; +}; + +struct bm1880_div_hw_clock { + struct bm1880_div_clock div; + void __iomem *base; + spinlock_t *lock; + struct clk_hw hw; +}; + +struct bm1880_composite_clock { + unsigned int id; + const char *name; + const char *parent; + const char * const * parents; + unsigned int num_parents; + unsigned long flags; + + u32 gate_reg; + u32 mux_reg; + u32 div_reg; + + s8 gate_shift; + s8 mux_shift; + s8 div_shift; + s8 div_width; + s16 div_initval; + struct clk_div_table *table; +}; + +struct bm1880_pll_clock { + unsigned int id; + const char *name; + const char *parent; + u32 reg; + unsigned long flags; +}; + +struct bm1880_pll_hw_clock { + struct bm1880_pll_clock pll; + void __iomem *base; + struct clk_hw hw; +}; + +#define GATE_DIV(_id, _name, _parent, _gate_reg, _gate_shift, _div_reg, \ + _div_shift, _div_width, _div_initval, _table, \ + _flags) { \ + .id = _id, \ + .parent = _parent, \ + .name = _name, \ + .gate_reg = _gate_reg, \ + .gate_shift = _gate_shift, \ + .div_reg = _div_reg, \ + .div_shift = _div_shift, \ + .div_width = _div_width, \ + .div_initval = _div_initval, \ + .table = _table, \ + .mux_shift = -1, \ + .flags = _flags, \ + } + +#define GATE_MUX(_id, _name, _parents, _gate_reg, _gate_shift, \ + _mux_reg, _mux_shift, _flags) { \ + .id = _id, \ + .parents = _parents, \ + .num_parents = ARRAY_SIZE(_parents), \ + .name = _name, \ + .gate_reg = _gate_reg, \ + .gate_shift = _gate_shift, \ + .div_shift = -1, \ + .mux_reg = _mux_reg, \ + .mux_shift = _mux_shift, \ + .flags = _flags, \ + } + +static const struct bm1880_pll_clock bm1880_pll_clks[] = { + { BM1880_CLK_MPLL, "clk_mpll", "osc", BM1880_CLK_MPLL_CTL, + CLK_IS_CRITICAL }, + { BM1880_CLK_SPLL, "clk_spll", "osc", BM1880_CLK_SPLL_CTL, + CLK_IS_CRITICAL }, + { BM1880_CLK_FPLL, "clk_fpll", "osc", BM1880_CLK_FPLL_CTL, + CLK_IS_CRITICAL }, + { BM1880_CLK_DDRPLL, "clk_ddrpll", "osc", BM1880_CLK_DDRPLL_CTL, + CLK_IS_CRITICAL }, +}; + +static const struct bm1880_gate_clock bm1880_gate_clks[] = { + { BM1880_CLK_AHB_ROM, "clk_ahb_rom", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 2, CLK_IS_CRITICAL }, + { BM1880_CLK_AXI_SRAM, "clk_axi_sram", "clk_axi1", + BM1880_CLK_ENABLE0, 3, CLK_IS_CRITICAL }, + { BM1880_CLK_DDR_AXI, "clk_ddr_axi", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 4, CLK_IS_CRITICAL }, + { BM1880_CLK_APB_EFUSE, "clk_apb_efuse", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 6, CLK_IS_CRITICAL }, + { BM1880_CLK_AXI5_EMMC, "clk_axi5_emmc", "clk_axi5", + BM1880_CLK_ENABLE0, 7, 0 }, + { BM1880_CLK_AXI5_SD, "clk_axi5_sd", "clk_axi5", + BM1880_CLK_ENABLE0, 10, 0 }, + { BM1880_CLK_AXI4_ETH0, "clk_axi4_eth0", "clk_axi4", + BM1880_CLK_ENABLE0, 14, 0 }, + { BM1880_CLK_AXI4_ETH1, "clk_axi4_eth1", "clk_axi4", + BM1880_CLK_ENABLE0, 16, 0 }, + { BM1880_CLK_AXI1_GDMA, "clk_axi1_gdma", "clk_axi1", + BM1880_CLK_ENABLE0, 17, 0 }, + /* Don't gate GPIO clocks as it is not owned by the GPIO driver */ + { BM1880_CLK_APB_GPIO, "clk_apb_gpio", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 18, CLK_IGNORE_UNUSED }, + { BM1880_CLK_APB_GPIO_INTR, "clk_apb_gpio_intr", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 19, CLK_IGNORE_UNUSED }, + { BM1880_CLK_AXI1_MINER, "clk_axi1_miner", "clk_axi1", + BM1880_CLK_ENABLE0, 21, 0 }, + { BM1880_CLK_AHB_SF, "clk_ahb_sf", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 22, 0 }, + { BM1880_CLK_SDMA_AXI, "clk_sdma_axi", "clk_axi5", + BM1880_CLK_ENABLE0, 23, 0 }, + { BM1880_CLK_APB_I2C, "clk_apb_i2c", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 25, 0 }, + { BM1880_CLK_APB_WDT, "clk_apb_wdt", "clk_mux_axi6", + BM1880_CLK_ENABLE0, 26, 0 }, + { BM1880_CLK_APB_JPEG, "clk_apb_jpeg", "clk_axi6", + BM1880_CLK_ENABLE0, 27, 0 }, + { BM1880_CLK_AXI5_NF, "clk_axi5_nf", "clk_axi5", + BM1880_CLK_ENABLE0, 29, 0 }, + { BM1880_CLK_APB_NF, "clk_apb_nf", "clk_axi6", + BM1880_CLK_ENABLE0, 30, 0 }, + { BM1880_CLK_APB_PWM, "clk_apb_pwm", "clk_mux_axi6", + BM1880_CLK_ENABLE1, 0, 0 }, + { BM1880_CLK_RV, "clk_rv", "clk_mux_rv", + BM1880_CLK_ENABLE1, 1, 0 }, + { BM1880_CLK_APB_SPI, "clk_apb_spi", "clk_mux_axi6", + BM1880_CLK_ENABLE1, 2, 0 }, + { BM1880_CLK_UART_500M, "clk_uart_500m", "clk_div_uart_500m", + BM1880_CLK_ENABLE1, 4, 0 }, + { BM1880_CLK_APB_UART, "clk_apb_uart", "clk_axi6", + BM1880_CLK_ENABLE1, 5, 0 }, + { BM1880_CLK_APB_I2S, "clk_apb_i2s", "clk_axi6", + BM1880_CLK_ENABLE1, 6, 0 }, + { BM1880_CLK_AXI4_USB, "clk_axi4_usb", "clk_axi4", + BM1880_CLK_ENABLE1, 7, 0 }, + { BM1880_CLK_APB_USB, "clk_apb_usb", "clk_axi6", + BM1880_CLK_ENABLE1, 8, 0 }, + { BM1880_CLK_12M_USB, "clk_12m_usb", "clk_div_12m_usb", + BM1880_CLK_ENABLE1, 11, 0 }, + { BM1880_CLK_APB_VIDEO, "clk_apb_video", "clk_axi6", + BM1880_CLK_ENABLE1, 12, 0 }, + { BM1880_CLK_APB_VPP, "clk_apb_vpp", "clk_axi6", + BM1880_CLK_ENABLE1, 15, 0 }, + { BM1880_CLK_AXI6, "clk_axi6", "clk_mux_axi6", + BM1880_CLK_ENABLE1, 21, CLK_IS_CRITICAL }, +}; + +static const char * const clk_a53_parents[] = { "clk_spll", "clk_mpll" }; +static const char * const clk_rv_parents[] = { "clk_div_1_rv", "clk_div_0_rv" }; +static const char * const clk_axi1_parents[] = { "clk_div_1_axi1", "clk_div_0_axi1" }; +static const char * const clk_axi6_parents[] = { "clk_div_1_axi6", "clk_div_0_axi6" }; + +static const struct bm1880_mux_clock bm1880_mux_clks[] = { + { BM1880_CLK_MUX_RV, "clk_mux_rv", clk_rv_parents, 2, + BM1880_CLK_SELECT, 1, 0 }, + { BM1880_CLK_MUX_AXI6, "clk_mux_axi6", clk_axi6_parents, 2, + BM1880_CLK_SELECT, 3, 0 }, +}; + +static struct clk_div_table bm1880_div_table_0[] = { + { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, + { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 }, + { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 }, + { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 }, + { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 }, + { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 }, + { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 }, + { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 }, + { 0, 0 } +}; + +static struct clk_div_table bm1880_div_table_1[] = { + { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, + { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 }, + { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 }, + { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 }, + { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 }, + { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 }, + { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 }, + { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 }, + { 127, 128 }, { 0, 0 } +}; + +static struct clk_div_table bm1880_div_table_2[] = { + { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, + { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 }, + { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 }, + { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 }, + { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 }, + { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 }, + { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 }, + { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 }, + { 127, 128 }, { 255, 256 }, { 0, 0 } +}; + +static struct clk_div_table bm1880_div_table_3[] = { + { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, + { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 }, + { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 }, + { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 }, + { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 }, + { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 }, + { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 }, + { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 }, + { 127, 128 }, { 255, 256 }, { 511, 512 }, { 0, 0 } +}; + +static struct clk_div_table bm1880_div_table_4[] = { + { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, + { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 }, + { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 }, + { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 }, + { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 }, + { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 }, + { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 }, + { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 }, + { 127, 128 }, { 255, 256 }, { 511, 512 }, { 65535, 65536 }, + { 0, 0 } +}; + +static const struct bm1880_div_clock bm1880_div_clks[] = { + { BM1880_CLK_DIV_0_RV, "clk_div_0_rv", "clk_spll", + BM1880_CLK_DIV12, 16, 5, 1, bm1880_div_table_0, CLK_IGNORE_UNUSED }, + { BM1880_CLK_DIV_1_RV, "clk_div_1_rv", "clk_fpll", + BM1880_CLK_DIV13, 16, 5, 1, bm1880_div_table_0, CLK_IGNORE_UNUSED }, + { BM1880_CLK_DIV_UART_500M, "clk_div_uart_500m", "clk_fpll", + BM1880_CLK_DIV15, 16, 7, 3, bm1880_div_table_1, 0 }, + { BM1880_CLK_DIV_0_AXI1, "clk_div_0_axi1", "clk_mpll", + BM1880_CLK_DIV21, 16, 5, 2, bm1880_div_table_0, CLK_IS_CRITICAL }, + { BM1880_CLK_DIV_1_AXI1, "clk_div_1_axi1", "clk_fpll", + BM1880_CLK_DIV22, 16, 5, 3, bm1880_div_table_0, CLK_IS_CRITICAL }, + { BM1880_CLK_DIV_0_AXI6, "clk_div_0_axi6", "clk_fpll", + BM1880_CLK_DIV27, 16, 5, 15, bm1880_div_table_0, CLK_IS_CRITICAL }, + { BM1880_CLK_DIV_1_AXI6, "clk_div_1_axi6", "clk_mpll", + BM1880_CLK_DIV28, 16, 5, 11, bm1880_div_table_0, CLK_IS_CRITICAL }, + { BM1880_CLK_DIV_12M_USB, "clk_div_12m_usb", "clk_fpll", + BM1880_CLK_DIV18, 16, 7, 125, bm1880_div_table_1, 0 }, +}; + +static struct bm1880_composite_clock bm1880_composite_clks[] = { + GATE_MUX(BM1880_CLK_A53, "clk_a53", clk_a53_parents, + BM1880_CLK_ENABLE0, 0, BM1880_CLK_SELECT, 0, + CLK_IS_CRITICAL), + GATE_DIV(BM1880_CLK_50M_A53, "clk_50m_a53", "clk_fpll", + BM1880_CLK_ENABLE0, 1, BM1880_CLK_DIV0, 16, 5, 30, + bm1880_div_table_0, CLK_IS_CRITICAL), + GATE_DIV(BM1880_CLK_EFUSE, "clk_efuse", "clk_fpll", + BM1880_CLK_ENABLE0, 5, BM1880_CLK_DIV1, 16, 7, 60, + bm1880_div_table_1, 0), + GATE_DIV(BM1880_CLK_EMMC, "clk_emmc", "clk_fpll", + BM1880_CLK_ENABLE0, 8, BM1880_CLK_DIV2, 16, 5, 15, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_100K_EMMC, "clk_100k_emmc", "clk_div_12m_usb", + BM1880_CLK_ENABLE0, 9, BM1880_CLK_DIV3, 16, 8, 120, + bm1880_div_table_2, 0), + GATE_DIV(BM1880_CLK_SD, "clk_sd", "clk_fpll", + BM1880_CLK_ENABLE0, 11, BM1880_CLK_DIV4, 16, 5, 15, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_100K_SD, "clk_100k_sd", "clk_div_12m_usb", + BM1880_CLK_ENABLE0, 12, BM1880_CLK_DIV5, 16, 8, 120, + bm1880_div_table_2, 0), + GATE_DIV(BM1880_CLK_500M_ETH0, "clk_500m_eth0", "clk_fpll", + BM1880_CLK_ENABLE0, 13, BM1880_CLK_DIV6, 16, 5, 3, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_500M_ETH1, "clk_500m_eth1", "clk_fpll", + BM1880_CLK_ENABLE0, 15, BM1880_CLK_DIV7, 16, 5, 3, + bm1880_div_table_0, 0), + /* Don't gate GPIO clocks as it is not owned by the GPIO driver */ + GATE_DIV(BM1880_CLK_GPIO_DB, "clk_gpio_db", "clk_div_12m_usb", + BM1880_CLK_ENABLE0, 20, BM1880_CLK_DIV8, 16, 16, 120, + bm1880_div_table_4, CLK_IGNORE_UNUSED), + GATE_DIV(BM1880_CLK_SDMA_AUD, "clk_sdma_aud", "clk_fpll", + BM1880_CLK_ENABLE0, 24, BM1880_CLK_DIV9, 16, 7, 61, + bm1880_div_table_1, 0), + GATE_DIV(BM1880_CLK_JPEG_AXI, "clk_jpeg_axi", "clk_fpll", + BM1880_CLK_ENABLE0, 28, BM1880_CLK_DIV10, 16, 5, 4, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_NF, "clk_nf", "clk_fpll", + BM1880_CLK_ENABLE0, 31, BM1880_CLK_DIV11, 16, 5, 30, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_TPU_AXI, "clk_tpu_axi", "clk_spll", + BM1880_CLK_ENABLE1, 3, BM1880_CLK_DIV14, 16, 5, 1, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_125M_USB, "clk_125m_usb", "clk_fpll", + BM1880_CLK_ENABLE1, 9, BM1880_CLK_DIV16, 16, 5, 12, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_33K_USB, "clk_33k_usb", "clk_div_12m_usb", + BM1880_CLK_ENABLE1, 10, BM1880_CLK_DIV17, 16, 9, 363, + bm1880_div_table_3, 0), + GATE_DIV(BM1880_CLK_VIDEO_AXI, "clk_video_axi", "clk_fpll", + BM1880_CLK_ENABLE1, 13, BM1880_CLK_DIV19, 16, 5, 4, + bm1880_div_table_0, 0), + GATE_DIV(BM1880_CLK_VPP_AXI, "clk_vpp_axi", "clk_fpll", + BM1880_CLK_ENABLE1, 14, BM1880_CLK_DIV20, 16, 5, 4, + bm1880_div_table_0, 0), + GATE_MUX(BM1880_CLK_AXI1, "clk_axi1", clk_axi1_parents, + BM1880_CLK_ENABLE1, 15, BM1880_CLK_SELECT, 2, + CLK_IS_CRITICAL), + GATE_DIV(BM1880_CLK_AXI2, "clk_axi2", "clk_fpll", + BM1880_CLK_ENABLE1, 17, BM1880_CLK_DIV23, 16, 5, 3, + bm1880_div_table_0, CLK_IS_CRITICAL), + GATE_DIV(BM1880_CLK_AXI3, "clk_axi3", "clk_mux_rv", + BM1880_CLK_ENABLE1, 18, BM1880_CLK_DIV24, 16, 5, 2, + bm1880_div_table_0, CLK_IS_CRITICAL), + GATE_DIV(BM1880_CLK_AXI4, "clk_axi4", "clk_fpll", + BM1880_CLK_ENABLE1, 19, BM1880_CLK_DIV25, 16, 5, 6, + bm1880_div_table_0, CLK_IS_CRITICAL), + GATE_DIV(BM1880_CLK_AXI5, "clk_axi5", "clk_fpll", + BM1880_CLK_ENABLE1, 20, BM1880_CLK_DIV26, 16, 5, 15, + bm1880_div_table_0, CLK_IS_CRITICAL), +}; + +static unsigned long bm1880_pll_rate_calc(u32 regval, unsigned long parent_rate) +{ + u32 fbdiv, fref, refdiv; + u32 postdiv1, postdiv2; + unsigned long rate, numerator, denominator; + + fbdiv = (regval >> 16) & 0xfff; + fref = parent_rate; + refdiv = regval & 0x1f; + postdiv1 = (regval >> 8) & 0x7; + postdiv2 = (regval >> 12) & 0x7; + + numerator = parent_rate * fbdiv; + denominator = refdiv * postdiv1 * postdiv2; + do_div(numerator, denominator); + rate = numerator; + + return rate; +} + +static unsigned long bm1880_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct bm1880_pll_hw_clock *pll_hw = to_bm1880_pll_clk(hw); + unsigned long rate; + u32 regval; + + regval = readl(pll_hw->base + pll_hw->pll.reg); + rate = bm1880_pll_rate_calc(regval, parent_rate); + + return rate; +} + +static const struct clk_ops bm1880_pll_ops = { + .recalc_rate = bm1880_pll_recalc_rate, +}; + +struct clk *bm1880_clk_register_pll(const struct bm1880_pll_clock *pll_clk, + void __iomem *sys_base) +{ + struct bm1880_pll_hw_clock *pll_hw; + struct clk_init_data init; + struct clk_hw *hw; + int err; + + pll_hw = kzalloc(sizeof(*pll_hw), GFP_KERNEL); + if (!pll_hw) + return ERR_PTR(-ENOMEM); + + init.name = pll_clk->name; + init.ops = &bm1880_pll_ops; + init.flags = pll_clk->flags; + init.parent_names = &pll_clk->parent; + init.num_parents = 1; + + pll_hw->hw.init = &init; + pll_hw->pll.reg = pll_clk->reg; + pll_hw->base = sys_base; + + hw = &pll_hw->hw; + err = clk_hw_register(NULL, hw); + + if (err) { + kfree(pll_hw); + return ERR_PTR(err); + } + + return hw->clk; +} + +void bm1880_clk_unregister_pll(struct clk *clk) +{ + struct bm1880_pll_hw_clock *pll_hw; + struct clk_hw *hw; + + hw = __clk_get_hw(clk); + if (!hw) + return; + + pll_hw = to_bm1880_pll_clk(hw); + + clk_unregister(clk); + kfree(pll_hw); +} + +int bm1880_clk_register_plls(const struct bm1880_pll_clock *clks, + int num_clks, struct bm1880_clock_data *data) +{ + struct clk *clk; + void __iomem *pll_base = data->pll_base; + int i; + + for (i = 0; i < num_clks; i++) { + const struct bm1880_pll_clock *bm1880_clk = &clks[i]; + + clk = bm1880_clk_register_pll(bm1880_clk, pll_base); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, bm1880_clk->name); + goto err_clk; + } + + data->clk_data.clks[clks[i].id] = clk; + } + + return 0; + +err_clk: + while (i--) + bm1880_clk_unregister_pll(data->clk_data.clks[clks[i].id]); + + return PTR_ERR(clk); +} + +int bm1880_clk_register_mux(const struct bm1880_mux_clock *clks, + int num_clks, struct bm1880_clock_data *data) +{ + struct clk *clk; + void __iomem *sys_base = data->sys_base; + int i; + + for (i = 0; i < num_clks; i++) { + clk = clk_register_mux(NULL, clks[i].name, + clks[i].parents, + clks[i].num_parents, + clks[i].flags, + sys_base + clks[i].reg, + clks[i].shift, 1, 0, + &bm1880_clk_lock); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + goto err_clk; + } + + data->clk_data.clks[clks[i].id] = clk; + } + + return 0; + +err_clk: + while (i--) + clk_unregister_gate(data->clk_data.clks[clks[i].id]); + + return PTR_ERR(clk); +} + +static unsigned long bm1880_clk_div_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw); + struct bm1880_div_clock *div = &div_hw->div; + void __iomem *reg_addr = div_hw->base + div->reg; + unsigned int val; + unsigned long rate; + + if (!(readl(reg_addr) & BIT(3))) { + val = div->initval; + } else { + val = readl(reg_addr) >> div->shift; + val &= clk_div_mask(div->width); + } + + rate = divider_recalc_rate(hw, parent_rate, val, div->table, + div->flags, div->width); + + return rate; +} + +static long bm1880_clk_div_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw); + struct bm1880_div_clock *div = &div_hw->div; + void __iomem *reg_addr = div_hw->base + div->reg; + + if (div->flags & CLK_DIVIDER_READ_ONLY) { + u32 val; + + val = readl(reg_addr) >> div->shift; + val &= clk_div_mask(div->width); + + return divider_ro_round_rate(hw, rate, prate, div->table, + div->width, div->flags, + val); + } + + return divider_round_rate(hw, rate, prate, div->table, + div->width, div->flags); +} + +static int bm1880_clk_div_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw); + struct bm1880_div_clock *div = &div_hw->div; + void __iomem *reg_addr = div_hw->base + div->reg; + unsigned long flags = 0; + int value; + u32 val; + + value = divider_get_val(rate, parent_rate, div->table, + div->width, div_hw->div.flags); + if (value < 0) + return value; + + if (div_hw->lock) + spin_lock_irqsave(div_hw->lock, flags); + else + __acquire(div_hw->lock); + + if (div->flags & CLK_DIVIDER_HIWORD_MASK) { + val = clk_div_mask(div->width) << (div_hw->div.shift + 16); + } else { + val = readl(reg_addr); + val &= ~(clk_div_mask(div->width) << div_hw->div.shift); + } + val |= (u32)value << div->shift; + writel(val, reg_addr); + + if (div_hw->lock) + spin_unlock_irqrestore(div_hw->lock, flags); + else + __release(div_hw->lock); + + return 0; +} + +const struct clk_ops bm1880_clk_div_ops = { + .recalc_rate = bm1880_clk_div_recalc_rate, + .round_rate = bm1880_clk_div_round_rate, + .set_rate = bm1880_clk_div_set_rate, +}; + +struct clk *bm1880_clk_register_div(const struct bm1880_div_clock *div_clk, + void __iomem *sys_base) +{ + struct bm1880_div_hw_clock *div_hw; + struct clk_init_data init; + struct clk_hw *hw; + int err; + + div_hw = kzalloc(sizeof(*div_hw), GFP_KERNEL); + if (!div_hw) + return ERR_PTR(-ENOMEM); + + init.name = div_clk->name; + init.ops = &bm1880_clk_div_ops; + init.flags = div_clk->flags; + init.parent_names = &div_clk->parent; + init.num_parents = 1; + + div_hw->hw.init = &init; + div_hw->div.reg = div_clk->reg; + div_hw->div.shift = div_clk->shift; + div_hw->div.width = div_clk->width; + div_hw->div.initval = div_clk->initval; + div_hw->div.table = div_clk->table; + div_hw->div.flags = CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO; + div_hw->base = sys_base; + div_hw->lock = &bm1880_clk_lock; + + hw = &div_hw->hw; + err = clk_hw_register(NULL, hw); + + if (err) { + kfree(div_hw); + return ERR_PTR(err); + } + + return hw->clk; +} + +void bm1880_clk_unregister_div(struct clk *clk) +{ + struct bm1880_div_hw_clock *div_hw; + struct clk_hw *hw; + + hw = __clk_get_hw(clk); + if (!hw) + return; + + div_hw = to_bm1880_div_clk(hw); + + clk_unregister(clk); + kfree(div_hw); +} + +int bm1880_clk_register_divs(const struct bm1880_div_clock *clks, + int num_clks, struct bm1880_clock_data *data) +{ + struct clk *clk; + void __iomem *sys_base = data->sys_base; + int i; + + for (i = 0; i < num_clks; i++) { + const struct bm1880_div_clock *bm1880_clk = &clks[i]; + + clk = bm1880_clk_register_div(bm1880_clk, sys_base); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, bm1880_clk->name); + goto err_clk; + } + + data->clk_data.clks[clks[i].id] = clk; + } + + return 0; + +err_clk: + while (i--) + bm1880_clk_unregister_div(data->clk_data.clks[clks[i].id]); + + return PTR_ERR(clk); +} + +int bm1880_clk_register_gate(const struct bm1880_gate_clock *clks, + int num_clks, struct bm1880_clock_data *data) +{ + struct clk *clk; + void __iomem *sys_base = data->sys_base; + int i; + + for (i = 0; i < num_clks; i++) { + clk = clk_register_gate(NULL, clks[i].name, + clks[i].parent, + clks[i].flags, + sys_base + clks[i].gate_reg, + clks[i].gate_shift, + 0, + &bm1880_clk_lock); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + goto err_clk; + } + + data->clk_data.clks[clks[i].id] = clk; + } + + return 0; + +err_clk: + while (i--) + clk_unregister_gate(data->clk_data.clks[clks[i].id]); + + return PTR_ERR(clk); +} + +struct clk *bm1880_clk_register_composite(struct bm1880_composite_clock *clks, + void __iomem *sys_base) +{ + struct clk *clk; + struct clk_mux *mux = NULL; + struct clk_gate *gate = NULL; + struct bm1880_div_hw_clock *div_hws = NULL; + struct clk_hw *mux_hw = NULL, *gate_hw = NULL, *div_hw = NULL; + const struct clk_ops *mux_ops = NULL, *gate_ops = NULL, *div_ops = NULL; + const char * const *parent_names; + const char *parent; + int num_parents; + int ret; + + if (clks->mux_shift >= 0) { + mux = kzalloc(sizeof(*mux), GFP_KERNEL); + if (!mux) + return ERR_PTR(-ENOMEM); + + mux->reg = sys_base + clks->mux_reg; + mux->mask = 1; + mux->shift = clks->mux_shift; + mux_hw = &mux->hw; + mux_ops = &clk_mux_ops; + mux->lock = &bm1880_clk_lock; + + parent_names = clks->parents; + num_parents = clks->num_parents; + } else { + parent = clks->parent; + parent_names = &parent; + num_parents = 1; + } + + if (clks->gate_shift >= 0) { + gate = kzalloc(sizeof(*gate), GFP_KERNEL); + if (!gate) { + ret = -ENOMEM; + goto err_out; + } + + gate->reg = sys_base + clks->gate_reg; + gate->bit_idx = clks->gate_shift; + gate->lock = &bm1880_clk_lock; + + gate_hw = &gate->hw; + gate_ops = &clk_gate_ops; + } + + if (clks->div_shift >= 0) { + div_hws = kzalloc(sizeof(*div_hws), GFP_KERNEL); + if (!div_hws) { + ret = -ENOMEM; + goto err_out; + } + + div_hws->base = sys_base; + div_hws->div.reg = clks->div_reg; + div_hws->div.shift = clks->div_shift; + div_hws->div.width = clks->div_width; + div_hws->div.table = clks->table; + div_hws->div.initval = clks->div_initval; + div_hws->lock = &bm1880_clk_lock; + div_hws->div.flags = CLK_DIVIDER_ONE_BASED | + CLK_DIVIDER_ALLOW_ZERO; + + div_hw = &div_hws->hw; + div_ops = &bm1880_clk_div_ops; + } + + clk = clk_register_composite(NULL, clks->name, parent_names, + num_parents, mux_hw, mux_ops, div_hw, + div_ops, gate_hw, gate_ops, (clks->flags)); + + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + goto err_out; + } + + return clk; + +err_out: + kfree(div_hws); + kfree(gate); + kfree(mux); + + return ERR_PTR(ret); +} + +int bm1880_clk_register_composites(struct bm1880_composite_clock *clks, + int num_clks, struct bm1880_clock_data *data) +{ + struct clk *clk; + void __iomem *sys_base = data->sys_base; + int i; + + for (i = 0; i < num_clks; i++) { + struct bm1880_composite_clock *bm1880_clk = &clks[i]; + + clk = bm1880_clk_register_composite(bm1880_clk, sys_base); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, bm1880_clk->name); + goto err_clk; + } + + data->clk_data.clks[clks[i].id] = clk; + } + + return 0; + +err_clk: + while (i--) + clk_unregister_composite(data->clk_data.clks[clks[i].id]); + + return PTR_ERR(clk); +} + +static void bm1880_clk_init(struct device_node *np) +{ + struct bm1880_clock_data *clk_data; + struct clk **clk_table; + void __iomem *pll_base, *sys_base; + int num_clks; + + pll_base = of_iomap(np, 0); + if (!pll_base) { + pr_err("%pOFn: unable to map pll resource", np); + of_node_put(np); + return; + } + + sys_base = of_iomap(np, 1); + if (!sys_base) { + pr_err("%pOFn: unable to map sys resource", np); + of_node_put(np); + return; + } + + clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); + if (!clk_data) + return; + + clk_data->pll_base = pll_base; + clk_data->sys_base = sys_base; + num_clks = ARRAY_SIZE(bm1880_gate_clks) + + ARRAY_SIZE(bm1880_composite_clks); + + clk_table = kcalloc(num_clks, sizeof(*clk_table), GFP_KERNEL); + if (!clk_table) + goto err_out; + + clk_data->clk_data.clks = clk_table; + clk_data->clk_data.clk_num = num_clks; + + /* Register PLL clocks */ + bm1880_clk_register_plls(bm1880_pll_clks, + ARRAY_SIZE(bm1880_pll_clks), + clk_data); + + /* Register Divider clocks */ + bm1880_clk_register_divs(bm1880_div_clks, + ARRAY_SIZE(bm1880_div_clks), + clk_data); + + /* Register Mux clocks */ + bm1880_clk_register_mux(bm1880_mux_clks, + ARRAY_SIZE(bm1880_mux_clks), + clk_data); + + /* Register Composite clocks */ + bm1880_clk_register_composites(bm1880_composite_clks, + ARRAY_SIZE(bm1880_composite_clks), + clk_data); + + /* Register Gate clocks */ + bm1880_clk_register_gate(bm1880_gate_clks, + ARRAY_SIZE(bm1880_gate_clks), + clk_data); + + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data->clk_data); + + return; + +err_out: + kfree(clk_data); +} + +CLK_OF_DECLARE_DRIVER(bm1880_clk, "bitmain,bm1880-clk", bm1880_clk_init);