Commit dcdd19b2 authored by David Lechner's avatar David Lechner Committed by Stephen Boyd
Browse files

clk: davinci: Add platform information for TI DM355 PLL 



This adds platform-specific declarations for the PLL clocks on TI
DM355 based systems.

Signed-off-by: default avatarDavid Lechner <david@lechnology.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 55b3caed

drivers/clk/davinci/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/clk/davinci/pll-dm355.c

0 → 100644
+79 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * PLL clock descriptions for TI DM355

 *

 * Copyright (C) 2018 David Lechner <david@lechnology.com>

 */



#include <linux/bitops.h>

#include <linux/clkdev.h>

#include <linux/init.h>

#include <linux/types.h>



#include "pll.h"



static const struct davinci_pll_clk_info dm355_pll1_info = {

	.name = "pll1",

	.pllm_mask = GENMASK(7, 0),

	.pllm_min = 92,

	.pllm_max = 184,

	.flags = PLL_HAS_CLKMODE | PLL_HAS_PREDIV | PLL_PREDIV_ALWAYS_ENABLED |

		 PLL_PREDIV_FIXED8 | PLL_HAS_POSTDIV |

		 PLL_POSTDIV_ALWAYS_ENABLED | PLL_POSTDIV_FIXED_DIV,

};



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);



int dm355_pll1_init(struct device *dev, void __iomem *base)

{

	struct clk *clk;



	davinci_pll_clk_register(dev, &dm355_pll1_info, "ref_clk", base);



	clk = davinci_pll_sysclk_register(dev, &pll1_sysclk1, base);

	clk_register_clkdev(clk, "pll1_sysclk1", "dm355-psc");



	clk = davinci_pll_sysclk_register(dev, &pll1_sysclk2, base);

	clk_register_clkdev(clk, "pll1_sysclk2", "dm355-psc");



	clk = davinci_pll_sysclk_register(dev, &pll1_sysclk3, base);

	clk_register_clkdev(clk, "pll1_sysclk3", "dm355-psc");



	clk = davinci_pll_sysclk_register(dev, &pll1_sysclk4, base);

	clk_register_clkdev(clk, "pll1_sysclk4", "dm355-psc");



	clk = davinci_pll_auxclk_register(dev, "pll1_auxclk", base);

	clk_register_clkdev(clk, "pll1_auxclk", "dm355-psc");



	davinci_pll_sysclkbp_clk_register(dev, "pll1_sysclkbp", base);



	return 0;

}



static const struct davinci_pll_clk_info dm355_pll2_info = {

	.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,

};



SYSCLK(1, pll2_sysclk1, pll2, 5, SYSCLK_FIXED_DIV);

SYSCLK(2, pll2_sysclk2, pll2, 5, SYSCLK_FIXED_DIV | SYSCLK_ALWAYS_ENABLED);



int dm355_pll2_init(struct device *dev, void __iomem *base)

{

	davinci_pll_clk_register(dev, &dm355_pll2_info, "oscin", base);



	davinci_pll_sysclk_register(dev, &pll2_sysclk1, base);



	davinci_pll_sysclk_register(dev, &pll2_sysclk2, base);



	davinci_pll_sysclkbp_clk_register(dev, "pll2_sysclkbp", base);



	return 0;

}

drivers/clk/davinci/pll.c

+2 −0
Original line number Diff line number Diff line
@@ -780,6 +780,8 @@ static const struct platform_device_id davinci_pll_id_table[] = { 
	{ .name = "da830-pll",   .driver_data = (kernel_ulong_t)da830_pll_init   },

	{ .name = "da850-pll0",  .driver_data = (kernel_ulong_t)da850_pll0_init  },

	{ .name = "da850-pll1",  .driver_data = (kernel_ulong_t)da850_pll1_init  },

	{ .name = "dm355-pll1",  .driver_data = (kernel_ulong_t)dm355_pll1_init  },

	{ .name = "dm355-pll2",  .driver_data = (kernel_ulong_t)dm355_pll2_init  },

	{ }

};

drivers/clk/davinci/pll.h

+3 −0
Original line number Diff line number Diff line
@@ -126,4 +126,7 @@ int da850_pll1_init(struct device *dev, void __iomem *base); 
int of_da850_pll0_init(struct device *dev, void __iomem *base);

int of_da850_pll1_init(struct device *dev, void __iomem *base);



int dm355_pll1_init(struct device *dev, void __iomem *base);

int dm355_pll2_init(struct device *dev, void __iomem *base);



#endif /* __CLK_DAVINCI_PLL_H___ */

CRA Git | Maintained and supported by SUSTech CRA and CCSE