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Received: from 108-198-5-147.lightspeed.okcbok.sbcglobal.net ([108.198.5.147]:53590 helo=freyr.lechnology.com) by vern.gendns.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-SHA256:128) (Exim 4.89_1) (envelope-from ) id 1ecwiz-00059q-Aw; Sat, 20 Jan 2018 12:14:37 -0500 From: David Lechner To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 06/41] clk: davinci: Add platform information for TI DM365 PLL Date: Sat, 20 Jan 2018 11:13:45 -0600 Message-Id: <1516468460-4908-7-git-send-email-david@lechnology.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1516468460-4908-1-git-send-email-david@lechnology.com> References: <1516468460-4908-1-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-20180120_171527_574190_060FFA14 X-CRM114-Status: GOOD ( 16.25 ) 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, Bartosz Golaszewski , 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 DM365 based systems. Signed-off-by: David Lechner --- v6 changes: - Added dm365_pll{1,2}_info with controller-specific information - Changed OBSCLK data - Add empty lines between function calls drivers/clk/davinci/Makefile | 1 + drivers/clk/davinci/pll-dm365.c | 110 ++++++++++++++++++++++++++++++++++++++++ include/linux/clk/davinci.h | 1 + 3 files changed, 112 insertions(+) create mode 100644 drivers/clk/davinci/pll-dm365.c diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile index 6720bd0..353aa02 100644 --- a/drivers/clk/davinci/Makefile +++ b/drivers/clk/davinci/Makefile @@ -5,4 +5,5 @@ obj-y += pll.o obj-$(CONFIG_ARCH_DAVINCI_DA830) += pll-da830.o obj-$(CONFIG_ARCH_DAVINCI_DA850) += pll-da850.o obj-$(CONFIG_ARCH_DAVINCI_DM355) += pll-dm355.o +obj-$(CONFIG_ARCH_DAVINCI_DM365) += pll-dm365.o endif diff --git a/drivers/clk/davinci/pll-dm365.c b/drivers/clk/davinci/pll-dm365.c new file mode 100644 index 0000000..1be7785 --- /dev/null +++ b/drivers/clk/davinci/pll-dm365.c @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PLL clock descriptions for TI DM365 + * + * Copyright (C) 2018 David Lechner + */ + +#include +#include +#include +#include + +#include "pll.h" + +#define OCSEL_OCSRC_ENABLE 0 + +static const struct davinci_pll_clk_info dm365_pll1_info __initconst = { + .name = "pll1", + .pllm_mask = GENMASK(9, 0), + .pllm_min = 1, + .pllm_max = 1023, + .flags = PLL_HAS_OSCIN | PLL_HAS_PREDIV | PLL_HAS_POSTDIV | + PLL_POSTDIV_ALWAYS_ENABLED | PLL_PLLM_2X, +}; + +static const struct davinci_pll_sysclk_info dm365_pll1_sysclk_info[] __initconst = { + SYSCLK(1, pll1_sysclk1, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(2, pll1_sysclk2, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(3, pll1_sysclk3, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(4, pll1_sysclk4, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(5, pll1_sysclk5, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(6, pll1_sysclk6, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(7, pll1_sysclk7, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(8, pll1_sysclk8, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(9, pll1_sysclk9, pll1_pllen, 5, SYSCLK_ALWAYS_ENABLED), + { } +}; + +/* + * This is a bit of a hack to make OCSEL[OCSRC] on DM365 look like OCSEL[OCSRC] + * on DA850. On DM365, OCSEL[OCSRC] is just an enable/disable bit instead of a + * multiplexer. By modeling it as a single parent mux clock, the clock code will + * still do the right thing in this case. + */ +static const char * const dm365_pll_obsclk_parent_names[] __initconst = { + "oscin", +}; + +static u32 dm365_pll_obsclk_table[] = { + OCSEL_OCSRC_ENABLE, +}; + +static const struct davinci_pll_obsclk_info dm365_pll1_obsclk_info __initconst = { + .name = "pll1_obsclk", + .parent_names = dm365_pll_obsclk_parent_names, + .num_parents = ARRAY_SIZE(dm365_pll_obsclk_parent_names), + .table = dm365_pll_obsclk_table, + .ocsrc_mask = BIT(4), +}; + +static const struct davinci_pll_clk_info dm365_pll2_info __initconst = { + .name = "pll2", + .pllm_mask = GENMASK(9, 0), + .pllm_min = 1, + .pllm_max = 1023, + .flags = PLL_HAS_PREDIV | PLL_HAS_POSTDIV | PLL_POSTDIV_ALWAYS_ENABLED | + PLL_PLLM_2X, +}; + +static const struct davinci_pll_sysclk_info dm365_pll2_sysclk_info[] __initconst = { + SYSCLK(1, pll2_sysclk1, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(2, pll2_sysclk2, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(3, pll2_sysclk3, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(4, pll2_sysclk4, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(5, pll2_sysclk5, pll2_pllen, 5, SYSCLK_ALWAYS_ENABLED), + { } +}; + +static const struct davinci_pll_obsclk_info dm365_pll2_obsclk_info __initconst = { + .name = "pll2_obsclk", + .parent_names = dm365_pll_obsclk_parent_names, + .num_parents = ARRAY_SIZE(dm365_pll_obsclk_parent_names), + .table = dm365_pll_obsclk_table, + .ocsrc_mask = BIT(4), +}; + +void __init dm365_pll_clk_init(void __iomem *pll1, void __iomem *pll2) +{ + const struct davinci_pll_sysclk_info *info; + + davinci_pll_clk_register(&dm365_pll1_info, "ref_clk", pll1); + + davinci_pll_auxclk_register("pll1_auxclk", pll1); + + davinci_pll_sysclkbp_clk_register("pll1_sysclkbp", pll1); + + davinci_pll_obsclk_register(&dm365_pll1_obsclk_info, pll1); + + for (info = dm365_pll1_sysclk_info; info->name; info++) + davinci_pll_sysclk_register(info, pll1); + + davinci_pll_clk_register(&dm365_pll2_info, "oscin", pll2); + + davinci_pll_auxclk_register("pll2_auxclk", pll2); + + davinci_pll_obsclk_register(&dm365_pll2_obsclk_info, pll2); + + for (info = dm365_pll2_sysclk_info; info->name; info++) + davinci_pll_sysclk_register(info, pll2); +} diff --git a/include/linux/clk/davinci.h b/include/linux/clk/davinci.h index 95333fe..5bf60a7 100644 --- a/include/linux/clk/davinci.h +++ b/include/linux/clk/davinci.h @@ -12,5 +12,6 @@ void da830_pll_clk_init(void __iomem *pll); void da850_pll_clk_init(void __iomem *pll0, void __iomem *pll1); void dm355_pll_clk_init(void __iomem *pll1, void __iomem *pll2); +void dm365_pll_clk_init(void __iomem *pll1, void __iomem *pll2); #endif /* __LINUX_CLK_DAVINCI_H__ */