From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Lechner Subject: [PATCH v6 07/41] clk: davinci: Add platform information for TI DM644x PLL Date: Sat, 20 Jan 2018 11:13:46 -0600 Message-ID: <1516468460-4908-8-git-send-email-david@lechnology.com> References: <1516468460-4908-1-git-send-email-david@lechnology.com> Return-path: In-Reply-To: <1516468460-4908-1-git-send-email-david@lechnology.com> Sender: linux-clk-owner@vger.kernel.org To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Michael Turquette , Stephen Boyd , Rob Herring , Mark Rutland , Sekhar Nori , Kevin Hilman , Bartosz Golaszewski , Adam Ford , linux-kernel@vger.kernel.org, David Lechner List-Id: devicetree@vger.kernel.org This adds platform-specific declarations for the PLL clocks on TI DM644x based systems. Signed-off-by: David Lechner --- v6 changes: - Added dm644x_pll{1,2}_info with controller-specific information - Add empty lines between function calls drivers/clk/davinci/Makefile | 1 + drivers/clk/davinci/pll-dm644x.c | 67 ++++++++++++++++++++++++++++++++++++++++ include/linux/clk/davinci.h | 1 + 3 files changed, 69 insertions(+) create mode 100644 drivers/clk/davinci/pll-dm644x.c diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile index 353aa02..59d8ab6 100644 --- a/drivers/clk/davinci/Makefile +++ b/drivers/clk/davinci/Makefile @@ -6,4 +6,5 @@ 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 +obj-$(CONFIG_ARCH_DAVINCI_DM644x) += pll-dm644x.o endif diff --git a/drivers/clk/davinci/pll-dm644x.c b/drivers/clk/davinci/pll-dm644x.c new file mode 100644 index 0000000..0c9b80f --- /dev/null +++ b/drivers/clk/davinci/pll-dm644x.c @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PLL clock descriptions for TI DM644X + * + * Copyright (C) 2018 David Lechner + */ + +#include +#include +#include + +#include "pll.h" + +static const struct davinci_pll_clk_info dm644x_pll1_info __initconst = { + .name = "pll1", + .pllm_mask = GENMASK(4, 0), + .pllm_min = 1, + .pllm_max = 32, + .pllout_min_rate = 400000000, + .pllout_max_rate = 600000000, /* 810MHz @ 1.3V, -810 only */ + .flags = PLL_HAS_OSCIN | PLL_HAS_POSTDIV, +}; + +static const struct davinci_pll_sysclk_info dm644x_pll1_sysclk_info[] __initconst = { + SYSCLK(1, pll1_sysclk1, pll1_pllen, 4, SYSCLK_FIXED_DIV), + SYSCLK(2, pll1_sysclk2, pll1_pllen, 4, SYSCLK_FIXED_DIV), + SYSCLK(3, pll1_sysclk3, pll1_pllen, 4, SYSCLK_FIXED_DIV), + SYSCLK(5, pll1_sysclk5, pll1_pllen, 4, SYSCLK_FIXED_DIV), + { } +}; + +static const struct davinci_pll_clk_info dm644x_pll2_info __initconst = { + .name = "pll2", + .pllm_mask = GENMASK(4, 0), + .pllm_min = 1, + .pllm_max = 32, + .pllout_min_rate = 400000000, + .pllout_max_rate = 900000000, + .flags = PLL_HAS_POSTDIV | PLL_POSTDIV_FIXED_DIV, +}; + +static const struct davinci_pll_sysclk_info dm644x_pll2_sysclk_info[] __initconst = { + SYSCLK(1, pll2_sysclk1, pll2_pllen, 4, 0), + SYSCLK(2, pll2_sysclk2, pll2_pllen, 4, 0), + { } +}; + +void __init dm644x_pll_clk_init(void __iomem *pll1, void __iomem *pll2) +{ + const struct davinci_pll_sysclk_info *info; + + davinci_pll_clk_register(&dm644x_pll1_info, "ref_clk", pll1); + + for (info = dm644x_pll1_sysclk_info; info->name; info++) + davinci_pll_sysclk_register(info, pll1); + + davinci_pll_auxclk_register("pll1_auxclk", pll1); + + davinci_pll_sysclkbp_clk_register("pll1_sysclkbp", pll1); + + davinci_pll_clk_register(&dm644x_pll2_info, "oscin", pll2); + + for (info = dm644x_pll2_sysclk_info; info->name; info++) + davinci_pll_sysclk_register(info, pll2); + + davinci_pll_sysclkbp_clk_register("pll2_sysclkbp", pll2); +} diff --git a/include/linux/clk/davinci.h b/include/linux/clk/davinci.h index 5bf60a7..535990a 100644 --- a/include/linux/clk/davinci.h +++ b/include/linux/clk/davinci.h @@ -13,5 +13,6 @@ 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); +void dm644x_pll_clk_init(void __iomem *pll1, void __iomem *pll2); #endif /* __LINUX_CLK_DAVINCI_H__ */ -- 2.7.4