From mboxrd@z Thu Jan 1 00:00:00 1970 From: david@lechnology.com (David Lechner) Date: Sat, 20 Jan 2018 11:13:44 -0600 Subject: [PATCH v6 05/41] clk: davinci: Add platform information for TI DM355 PLL In-Reply-To: <1516468460-4908-1-git-send-email-david@lechnology.com> References: <1516468460-4908-1-git-send-email-david@lechnology.com> Message-ID: <1516468460-4908-6-git-send-email-david@lechnology.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This adds platform-specific declarations for the PLL clocks on TI DM355 based systems. Signed-off-by: David Lechner --- v6 changes: - Added dm355_pll{1,2}_info with controller-specific information - Add empty lines between function calls drivers/clk/davinci/Makefile | 1 + drivers/clk/davinci/pll-dm355.c | 66 +++++++++++++++++++++++++++++++++++++++++ include/linux/clk/davinci.h | 1 + 3 files changed, 68 insertions(+) create mode 100644 drivers/clk/davinci/pll-dm355.c diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile index 13049d4..6720bd0 100644 --- a/drivers/clk/davinci/Makefile +++ b/drivers/clk/davinci/Makefile @@ -4,4 +4,5 @@ ifeq ($(CONFIG_COMMON_CLK), y) obj-y += pll.o obj-$(CONFIG_ARCH_DAVINCI_DA830) += pll-da830.o obj-$(CONFIG_ARCH_DAVINCI_DA850) += pll-da850.o +obj-$(CONFIG_ARCH_DAVINCI_DM355) += pll-dm355.o endif diff --git a/drivers/clk/davinci/pll-dm355.c b/drivers/clk/davinci/pll-dm355.c new file mode 100644 index 0000000..ac93c52 --- /dev/null +++ b/drivers/clk/davinci/pll-dm355.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PLL clock descriptions for TI DM355 + * + * Copyright (C) 2018 David Lechner + */ + +#include +#include +#include + +#include "pll.h" + +static const struct davinci_pll_clk_info dm355_pll1_info __initconst = { + .name = "pll1", + .pllm_mask = GENMASK(7, 0), + .pllm_min = 92, + .pllm_max = 184, + .flags = PLL_HAS_OSCIN | PLL_HAS_PREDIV | PLL_PREDIV_ALWAYS_ENABLED | + PLL_PREDIV_FIXED8 | PLL_HAS_POSTDIV | + PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV, +}; + +static const struct davinci_pll_sysclk_info dm355_pll1_sysclk_info[] __initconst = { + SYSCLK(1, pll1_sysclk1, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED), + SYSCLK(2, pll1_sysclk2, pll1, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED), + SYSCLK(3, pll1_sysclk3, pll1, 5, SYSCLK_ALWAYS_ENABLED), + SYSCLK(4, pll1_sysclk4, pll1, 5, SYSCLK_ALWAYS_ENABLED), + { } +}; + +static const struct davinci_pll_clk_info dm355_pll2_info __initconst = { + .name = "pll2", + .pllm_mask = GENMASK(7, 0), + .pllm_min = 92, + .pllm_max = 184, + .flags = PLL_HAS_PREDIV | PLL_PREDIV_ALWAYS_ENABLED | PLL_HAS_POSTDIV | + PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV, +}; + +static const struct davinci_pll_sysclk_info dm355_pll2_sysclk_info[] __initconst = { + SYSCLK(1, pll2_sysclk1, pll2, 5, SYSCLK_FIXED_DIV), + SYSCLK(2, pll2_sysclk2, pll2, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED), + { } +}; + +void __init dm355_pll_clk_init(void __iomem *pll1, void __iomem *pll2) +{ + const struct davinci_pll_sysclk_info *info; + + davinci_pll_clk_register(&dm355_pll1_info, "ref_clk", pll1); + + for (info = dm355_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(&dm355_pll2_info, "oscin", pll2); + + for (info = dm355_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 7b08fe0..95333fe 100644 --- a/include/linux/clk/davinci.h +++ b/include/linux/clk/davinci.h @@ -11,5 +11,6 @@ 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); #endif /* __LINUX_CLK_DAVINCI_H__ */ -- 2.7.4