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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727793568; bh=G24ElOWxiZKGwYDhevGeRAazWaBjUigrl/a1ogQ455U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=DpiwSGOcX/hokPEvcBiAZimHpRrLv246ey5V2zzV5RtyanO4ZoZuc87W7H3Yn4wE2 xrzcSdRGnZzhR2Wh6/4KcALb1JNGFjf9cIR7IHQg3zzaIIcSH3vhzawHshrkY4B6yD ruzR4+waRFjpyXMroAUF46xjHQyLCT24U5YohHfa3a0+WKmw0VwuZByPfKV7+qUKoW 3etwMOitCAvYkI4p7j51wGn4D0mxZrmd6RQWirtdahcKVn7iq34T9OsB6pU1nVHU/A R81NYSce9araNuuUjrtMRmuDiVzZrpPoiy3fSWK76drwG3i5LEwNQYT5gwOKte5vBK iyOZuqlyAgr1w== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 785B9CEACCE; Tue, 1 Oct 2024 14:39:28 +0000 (UTC) From: =?utf-8?q?Duje_Mihanovi=C4=87_via_B4_Relay?= Date: Tue, 01 Oct 2024 16:37:37 +0200 Subject: [PATCH v13 07/12] clk: mmp: Add Marvell PXA1908 APMU driver Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241001-pxa1908-lkml-v13-7-6b9a7f64f9ae@skole.hr> References: <20241001-pxa1908-lkml-v13-0-6b9a7f64f9ae@skole.hr> In-Reply-To: <20241001-pxa1908-lkml-v13-0-6b9a7f64f9ae@skole.hr> To: Michael Turquette , Stephen Boyd , Linus Walleij , Rob Herring , Conor Dooley , Tony Lindgren , Haojian Zhuang , =?utf-8?q?Duje_Mihanovi=C4=87?= , Lubomir Rintel , Catalin Marinas , Will Deacon , Rob Herring , Krzysztof Kozlowski Cc: phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Karel Balej , David Wronek , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=5711; i=duje.mihanovic@skole.hr; s=20240706; h=from:subject:message-id; bh=/e1QDBHbcqt1WTOt/jn7y8ePbKdHC3S7QBtRcOByp3w=; b=owGbwMvMwCW21nBykGv/WmbG02pJDGl/OCdFlhQ/PxjWwy7lt0/9/NqdS84H3OOZ6bfq4+/7z zLf28g+6ihlYRDjYpAVU2TJ/e94jfezyNbt2csMYOawMoEMYeDiFICJbDZhZLgyNc/xyuluBs+X vkvVmtW1zp0Skrzop3e8beWXTzf/rBZn+CtV7XlO4XtT40H2YIOjG6Z/vn1IY5uViX+Z+re0N/G 5l/gA X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=6DFF41D60DF314B5B76BA630AD319352458FAD03 X-Endpoint-Received: by B4 Relay for duje.mihanovic@skole.hr/20240706 with auth_id=191 X-Original-From: =?utf-8?q?Duje_Mihanovi=C4=87?= Reply-To: duje.mihanovic@skole.hr From: Duje Mihanović Add driver for the APMU controller block found on Marvell's PXA1908 SoC. This driver is incomplete, lacking support for (at least) GPU, VPU, DSI and CCIC (camera related) clocks. Signed-off-by: Duje Mihanović --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-pxa1908-apmu.c | 121 +++++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+), 1 deletion(-) diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 038bcd4d035e1807973f5094db5565fe437e0650..a8b1a4b08824bc0ee7e6541a670808f31bf40240 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -11,4 +11,4 @@ obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o clk-of-pxa910.o obj-$(CONFIG_COMMON_CLK_MMP2) += clk-of-mmp2.o clk-pll.o pwr-island.o obj-$(CONFIG_COMMON_CLK_MMP2_AUDIO) += clk-audio.o -obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-pxa1908-apbc.o clk-pxa1908-apbcp.o +obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-pxa1908-apbc.o clk-pxa1908-apbcp.o clk-pxa1908-apmu.o diff --git a/drivers/clk/mmp/clk-pxa1908-apmu.c b/drivers/clk/mmp/clk-pxa1908-apmu.c new file mode 100644 index 0000000000000000000000000000000000000000..8cfb1258202f6f312a7c01128ad91d1b02b3cffc --- /dev/null +++ b/drivers/clk/mmp/clk-pxa1908-apmu.c @@ -0,0 +1,121 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include + +#include + +#include "clk.h" + +#define APMU_CLK_GATE_CTRL 0x40 +#define APMU_CCIC1 0x24 +#define APMU_ISP 0x38 +#define APMU_DSI1 0x44 +#define APMU_DISP1 0x4c +#define APMU_CCIC0 0x50 +#define APMU_SDH0 0x54 +#define APMU_SDH1 0x58 +#define APMU_USB 0x5c +#define APMU_NF 0x60 +#define APMU_VPU 0xa4 +#define APMU_GC 0xcc +#define APMU_SDH2 0xe0 +#define APMU_GC2D 0xf4 +#define APMU_TRACE 0x108 +#define APMU_DVC_DFC_DEBUG 0x140 + +#define APMU_NR_CLKS 17 + +struct pxa1908_clk_unit { + struct mmp_clk_unit unit; + void __iomem *base; +}; + +static DEFINE_SPINLOCK(pll1_lock); +static struct mmp_param_general_gate_clk pll1_gate_clks[] = { + {PXA1908_CLK_PLL1_D2_GATE, "pll1_d2_gate", "pll1_d2", 0, APMU_CLK_GATE_CTRL, 29, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_416_GATE, "pll1_416_gate", "pll1_416", 0, APMU_CLK_GATE_CTRL, 27, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_624_GATE, "pll1_624_gate", "pll1_624", 0, APMU_CLK_GATE_CTRL, 26, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_832_GATE, "pll1_832_gate", "pll1_832", 0, APMU_CLK_GATE_CTRL, 30, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_1248_GATE, "pll1_1248_gate", "pll1_1248", 0, APMU_CLK_GATE_CTRL, 28, 0, &pll1_lock}, +}; + +static DEFINE_SPINLOCK(sdh0_lock); +static DEFINE_SPINLOCK(sdh1_lock); +static DEFINE_SPINLOCK(sdh2_lock); + +static const char * const sdh_parent_names[] = {"pll1_416", "pll1_624"}; + +static struct mmp_clk_mix_config sdh_mix_config = { + .reg_info = DEFINE_MIX_REG_INFO(3, 8, 2, 6, 11), +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {PXA1908_CLK_USB, "usb_clk", NULL, 0, APMU_USB, 0x9, 0x9, 0x1, 0, NULL}, + {PXA1908_CLK_SDH0, "sdh0_clk", "sdh0_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH0, 0x12, 0x12, 0x0, 0, &sdh0_lock}, + {PXA1908_CLK_SDH1, "sdh1_clk", "sdh1_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH1, 0x12, 0x12, 0x0, 0, &sdh1_lock}, + {PXA1908_CLK_SDH2, "sdh2_clk", "sdh2_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH2, 0x12, 0x12, 0x0, 0, &sdh2_lock} +}; + +static void pxa1908_axi_periph_clk_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_general_gate_clks(unit, pll1_gate_clks, + pxa_unit->base, ARRAY_SIZE(pll1_gate_clks)); + + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->base + APMU_SDH0; + mmp_clk_register_mix(NULL, "sdh0_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh0_lock); + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->base + APMU_SDH1; + mmp_clk_register_mix(NULL, "sdh1_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh1_lock); + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->base + APMU_SDH2; + mmp_clk_register_mix(NULL, "sdh2_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh2_lock); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static int pxa1908_apmu_probe(struct platform_device *pdev) +{ + struct pxa1908_clk_unit *pxa_unit; + + pxa_unit = devm_kzalloc(&pdev->dev, sizeof(*pxa_unit), GFP_KERNEL); + if (IS_ERR(pxa_unit)) + return PTR_ERR(pxa_unit); + + pxa_unit->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pxa_unit->base)) + return PTR_ERR(pxa_unit->base); + + mmp_clk_init(pdev->dev.of_node, &pxa_unit->unit, APMU_NR_CLKS); + + pxa1908_axi_periph_clk_init(pxa_unit); + + return 0; +} + +static const struct of_device_id pxa1908_apmu_match_table[] = { + { .compatible = "marvell,pxa1908-apmu" }, + { } +}; +MODULE_DEVICE_TABLE(of, pxa1908_apmu_match_table); + +static struct platform_driver pxa1908_apmu_driver = { + .probe = pxa1908_apmu_probe, + .driver = { + .name = "pxa1908-apmu", + .of_match_table = pxa1908_apmu_match_table + } +}; +module_platform_driver(pxa1908_apmu_driver); + +MODULE_AUTHOR("Duje Mihanović "); +MODULE_DESCRIPTION("Marvell PXA1908 APMU Clock Driver"); +MODULE_LICENSE("GPL");