Commit aad739f9 authored by David Lechner's avatar David Lechner Committed by Stephen Boyd
Browse files

clk: davinci: Add platform information for TI DM646x PSC 



This adds platform-specific declarations for the PSC clocks on TI
DM646x based systems.

Signed-off-by: default avatarDavid Lechner <david@lechnology.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent f41e5275

drivers/clk/davinci/Makefile

+1 −0
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@@ -15,4 +15,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DA850) += psc-da850.o 
obj-$(CONFIG_ARCH_DAVINCI_DM355)	+= psc-dm355.o

obj-$(CONFIG_ARCH_DAVINCI_DM365)	+= psc-dm365.o

obj-$(CONFIG_ARCH_DAVINCI_DM644x)	+= psc-dm644x.o

obj-$(CONFIG_ARCH_DAVINCI_DM646x)	+= psc-dm646x.o

endif

drivers/clk/davinci/psc-dm646x.c

0 → 100644
+80 −0
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// SPDX-License-Identifier: GPL-2.0

/*

 * PSC clock descriptions for TI DaVinci DM646x

 *

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

 */



#include <linux/clk-provider.h>

#include <linux/clk.h>

#include <linux/clkdev.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/types.h>



#include "psc.h"



LPSC_CLKDEV1(ide_clkdev,	NULL,		"palm_bk3710");

LPSC_CLKDEV2(emac_clkdev,	NULL,		"davinci_emac.1",

				"fck",		"davinci_mdio.0");

LPSC_CLKDEV1(aemif_clkdev,	"aemif",	NULL);

LPSC_CLKDEV1(mcasp0_clkdev,	NULL,		"davinci-mcasp.0");

LPSC_CLKDEV1(mcasp1_clkdev,	NULL,		"davinci-mcasp.1");

LPSC_CLKDEV1(uart0_clkdev,	NULL,		"serial8250.0");

LPSC_CLKDEV1(uart1_clkdev,	NULL,		"serial8250.1");

LPSC_CLKDEV1(uart2_clkdev,	NULL,		"serial8250.2");

LPSC_CLKDEV1(i2c_clkdev,	NULL,		"i2c_davinci.1");

/* REVISIT: gpio-davinci.c should be modified to drop con_id */

LPSC_CLKDEV1(gpio_clkdev,	"gpio",		NULL);

LPSC_CLKDEV1(timer0_clkdev,	"timer0",	 NULL);



static const struct davinci_lpsc_clk_info dm646x_psc_info[] = {

	LPSC(0,  0, arm,      pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),

	/* REVISIT how to disable? */

	LPSC(1,  0, dsp,      pll1_sysclk1, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(4,  0, edma_cc,  pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(5,  0, edma_tc0, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(6,  0, edma_tc1, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(7,  0, edma_tc2, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(8,  0, edma_tc3, pll1_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(10, 0, ide,      pll1_sysclk4, ide_clkdev,    0),

	LPSC(14, 0, emac,     pll1_sysclk3, emac_clkdev,   0),

	LPSC(16, 0, vpif0,    ref_clk,      NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(17, 0, vpif1,    ref_clk,      NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(21, 0, aemif,    pll1_sysclk3, aemif_clkdev,  LPSC_ALWAYS_ENABLED),

	LPSC(22, 0, mcasp0,   pll1_sysclk3, mcasp0_clkdev, 0),

	LPSC(23, 0, mcasp1,   pll1_sysclk3, mcasp1_clkdev, 0),

	LPSC(26, 0, uart0,    aux_clkin,    uart0_clkdev,  0),

	LPSC(27, 0, uart1,    aux_clkin,    uart1_clkdev,  0),

	LPSC(28, 0, uart2,    aux_clkin,    uart2_clkdev,  0),

	/* REVIST: disabling hangs system */

	LPSC(29, 0, pwm0,     pll1_sysclk3, NULL,          LPSC_ALWAYS_ENABLED),

	/* REVIST: disabling hangs system */

	LPSC(30, 0, pwm1,     pll1_sysclk3, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(31, 0, i2c,      pll1_sysclk3, i2c_clkdev,    0),

	LPSC(33, 0, gpio,     pll1_sysclk3, gpio_clkdev,   0),

	LPSC(34, 0, timer0,   pll1_sysclk3, timer0_clkdev, LPSC_ALWAYS_ENABLED),

	LPSC(35, 0, timer1,   pll1_sysclk3, NULL,          0),

	{ }

};



static int dm646x_psc_init(struct device *dev, void __iomem *base)

{

	return davinci_psc_register_clocks(dev, dm646x_psc_info, 46, base);

}



static struct clk_bulk_data dm646x_psc_parent_clks[] = {

	{ .id = "ref_clk"      },

	{ .id = "aux_clkin"    },

	{ .id = "pll1_sysclk1" },

	{ .id = "pll1_sysclk2" },

	{ .id = "pll1_sysclk3" },

	{ .id = "pll1_sysclk4" },

	{ .id = "pll1_sysclk5" },

};



const struct davinci_psc_init_data dm646x_psc_init_data = {

	.parent_clks		= dm646x_psc_parent_clks,

	.num_parent_clks	= ARRAY_SIZE(dm646x_psc_parent_clks),

	.psc_init		= &dm646x_psc_init,

};

drivers/clk/davinci/psc.c

+1 −0
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@@ -495,6 +495,7 @@ static const struct platform_device_id davinci_psc_id_table[] = { 
	{ .name = "dm355-psc",  .driver_data = (kernel_ulong_t)&dm355_psc_init_data  },

	{ .name = "dm365-psc",  .driver_data = (kernel_ulong_t)&dm365_psc_init_data  },

	{ .name = "dm644x-psc", .driver_data = (kernel_ulong_t)&dm644x_psc_init_data },

	{ .name = "dm646x-psc", .driver_data = (kernel_ulong_t)&dm646x_psc_init_data },

	{ }

};

drivers/clk/davinci/psc.h

+1 −0
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@@ -103,5 +103,6 @@ extern const struct davinci_psc_init_data of_da850_psc1_init_data; 
extern const struct davinci_psc_init_data dm355_psc_init_data;

extern const struct davinci_psc_init_data dm365_psc_init_data;

extern const struct davinci_psc_init_data dm644x_psc_init_data;

extern const struct davinci_psc_init_data dm646x_psc_init_data;



#endif /* __CLK_DAVINCI_PSC_H__ */