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Received: from 108-198-5-147.lightspeed.okcbok.sbcglobal.net ([108.198.5.147]:53904 helo=freyr.lechnology.com) by vern.gendns.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-SHA256:128) (Exim 4.89) (envelope-from ) id 1eYN0y-0009GR-Mm; Sun, 07 Jan 2018 21:18:16 -0500 From: David Lechner To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 04/44] clk: davinci: Add platform information for TI DA850 PLL Date: Sun, 7 Jan 2018 20:17:03 -0600 Message-Id: <1515377863-20358-5-git-send-email-david@lechnology.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1515377863-20358-1-git-send-email-david@lechnology.com> References: <1515377863-20358-1-git-send-email-david@lechnology.com> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vern.gendns.com X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: vern.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: vern.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180107_181831_452861_F0C2AAB7 X-CRM114-Status: GOOD ( 12.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , David Lechner , Kevin Hilman , Stephen Boyd , Michael Turquette , Sekhar Nori , linux-kernel@vger.kernel.org, Rob Herring , Adam Ford MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This adds platform-specific declarations for the PLL clocks on TI DA850/ OMAP-L138/AM18XX SoCs. Signed-off-by: David Lechner Reviewed-by: Sekhar Nori --- drivers/clk/davinci/Makefile | 1 + drivers/clk/davinci/pll-da850.c | 67 +++++++++++++++++++++++++++++++++++++++++ include/linux/clk/davinci.h | 1 + 3 files changed, 69 insertions(+) create mode 100644 drivers/clk/davinci/pll-da850.c diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile index 9061e19..13049d4 100644 --- a/drivers/clk/davinci/Makefile +++ b/drivers/clk/davinci/Makefile @@ -3,4 +3,5 @@ ifeq ($(CONFIG_COMMON_CLK), y) obj-y += pll.o obj-$(CONFIG_ARCH_DAVINCI_DA830) += pll-da830.o +obj-$(CONFIG_ARCH_DAVINCI_DA850) += pll-da850.o endif diff --git a/drivers/clk/davinci/pll-da850.c b/drivers/clk/davinci/pll-da850.c new file mode 100644 index 0000000..2f00f3d --- /dev/null +++ b/drivers/clk/davinci/pll-da850.c @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PLL clock descriptions for TI DA850/OMAP-L138/AM18XX + * + * Copyright (C) 2017 David Lechner + */ + +#include +#include +#include +#include +#include + +#include "pll.h" + +/* + * NB: Technically, the clocks flagged as DIVCLK_FIXED_DIV are "fixed ratio", + * meaning that we could change the divider as long as we keep the correct + * ratio between all of the clocks, but we don't support that because there is + * currently not a need for it. + */ + +static const struct davinci_pll_divclk_info da850_pll0_divclk_info[] __initconst = { + DIVCLK(1, pll0_sysclk1, pll0, DIVCLK_FIXED_DIV), + DIVCLK(2, pll0_sysclk2, pll0, DIVCLK_FIXED_DIV), + DIVCLK(3, pll0_sysclk3, pll0, 0), + DIVCLK(4, pll0_sysclk4, pll0, DIVCLK_FIXED_DIV), + DIVCLK(5, pll0_sysclk5, pll0, 0), + DIVCLK(6, pll0_sysclk6, pll0, DIVCLK_ARM_RATE | DIVCLK_FIXED_DIV), + DIVCLK(7, pll0_sysclk7, pll0, 0), + { } +}; + +static const struct davinci_pll_divclk_info da850_pll1_divclk_info[] __initconst = { + DIVCLK(1, pll1_sysclk1, pll1, DIVCLK_ALWAYS_ENABLED), + DIVCLK(2, pll1_sysclk2, pll1, 0), + DIVCLK(3, pll1_sysclk3, pll1, 0), + { } +}; + +void __init da850_pll_clk_init(void __iomem *pll0, void __iomem *pll1) +{ + const struct davinci_pll_divclk_info *info; + + davinci_pll_clk_register("pll0", "ref_clk", pll0); + davinci_pll_aux_clk_register("pll0_aux_clk", "ref_clk", pll0); + for (info = da850_pll0_divclk_info; info->name; info++) + davinci_pll_divclk_register(info, pll0); + + davinci_pll_clk_register("pll1", "ref_clk", pll1); + for (info = da850_pll1_divclk_info; info->name; info++) + davinci_pll_divclk_register(info, pll1); +} + +#ifdef CONFIG_OF +static void __init of_da850_pll0_auxclk_init(struct device_node *node) +{ + of_davinci_pll_init(node, "pll0", da850_pll0_divclk_info, 7); +} +CLK_OF_DECLARE(da850_pll0_auxclk, "ti,da850-pll0", of_da850_pll0_auxclk_init); + +static void __init of_da850_pll1_auxclk_init(struct device_node *node) +{ + of_davinci_pll_init(node, "pll1", da850_pll1_divclk_info, 3); +} +CLK_OF_DECLARE(da850_pll1_auxclk, "ti,da850-pll1", of_da850_pll1_auxclk_init); +#endif diff --git a/include/linux/clk/davinci.h b/include/linux/clk/davinci.h index 4f4d60d..7b08fe0 100644 --- a/include/linux/clk/davinci.h +++ b/include/linux/clk/davinci.h @@ -10,5 +10,6 @@ #include void da830_pll_clk_init(void __iomem *pll); +void da850_pll_clk_init(void __iomem *pll0, void __iomem *pll1); #endif /* __LINUX_CLK_DAVINCI_H__ */