Commit f41e5275 authored by David Lechner's avatar David Lechner Committed by Stephen Boyd
Browse files

clk: davinci: Add platform information for TI DM644x PSC 



This adds platform-specific declarations for the PSC clocks on TI
DM644x based systems.

Signed-off-by: default avatarDavid Lechner <david@lechnology.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 9ab1102c

drivers/clk/davinci/Makefile

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@@ -14,4 +14,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DA830) += psc-da830.o 
obj-$(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

endif

drivers/clk/davinci/psc-dm644x.c

0 → 100644
+83 −0
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// SPDX-License-Identifier: GPL-2.0

/*

 * PSC clock descriptions for TI DaVinci DM644x

 *

 * 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(vpss_master_clkdev,	"master",	"vpss");

LPSC_CLKDEV1(vpss_slave_clkdev,		"slave",	"vpss");

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

					"fck",		"davinci_mdio.0");

LPSC_CLKDEV1(usb_clkdev,		"usb",		NULL);

LPSC_CLKDEV1(ide_clkdev,		NULL,		"palm_bk3710");

LPSC_CLKDEV1(aemif_clkdev,		"aemif",	NULL);

LPSC_CLKDEV1(mmcsd_clkdev,		NULL,		"dm6441-mmc.0");

LPSC_CLKDEV1(asp0_clkdev,		NULL,		"davinci-mcbsp");

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

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

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

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

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

LPSC_CLKDEV1(gpio_clkdev,		"gpio",		NULL);

LPSC_CLKDEV1(timer0_clkdev,		"timer0",	NULL);

LPSC_CLKDEV1(timer2_clkdev,		NULL,		"davinci-wdt");



static const struct davinci_lpsc_clk_info dm644x_psc_info[] = {

	LPSC(0,  0, vpss_master, pll1_sysclk3, vpss_master_clkdev, 0),

	LPSC(1,  0, vpss_slave,  pll1_sysclk3, vpss_slave_clkdev,  0),

	LPSC(6,  0, emac,        pll1_sysclk5, emac_clkdev,        0),

	LPSC(9,  0, usb,         pll1_sysclk5, usb_clkdev,         0),

	LPSC(10, 0, ide,         pll1_sysclk5, ide_clkdev,         0),

	LPSC(11, 0, vlynq,       pll1_sysclk5, NULL,               0),

	LPSC(14, 0, aemif,       pll1_sysclk5, aemif_clkdev,       0),

	LPSC(15, 0, mmcsd,       pll1_sysclk5, mmcsd_clkdev,       0),

	LPSC(17, 0, asp0,        pll1_sysclk5, asp0_clkdev,        0),

	LPSC(18, 0, i2c,         pll1_auxclk,  i2c_clkdev,         0),

	LPSC(19, 0, uart0,       pll1_auxclk,  uart0_clkdev,       0),

	LPSC(20, 0, uart1,       pll1_auxclk,  uart1_clkdev,       0),

	LPSC(21, 0, uart2,       pll1_auxclk,  uart2_clkdev,       0),

	LPSC(22, 0, spi,         pll1_sysclk5, NULL,               0),

	LPSC(23, 0, pwm0,        pll1_auxclk,  NULL,               0),

	LPSC(24, 0, pwm1,        pll1_auxclk,  NULL,               0),

	LPSC(25, 0, pwm2,        pll1_auxclk,  NULL,               0),

	LPSC(26, 0, gpio,        pll1_sysclk5, gpio_clkdev,        0),

	LPSC(27, 0, timer0,      pll1_auxclk,  timer0_clkdev,      LPSC_ALWAYS_ENABLED),

	LPSC(28, 0, timer1,      pll1_auxclk,  NULL,               0),

	/* REVISIT: why can't this be disabled? */

	LPSC(29, 0, timer2,      pll1_auxclk,  timer2_clkdev,      LPSC_ALWAYS_ENABLED),

	LPSC(31, 0, arm,         pll1_sysclk2, NULL,               LPSC_ALWAYS_ENABLED),

	/* REVISIT how to disable? */

	LPSC(39, 1, dsp,         pll1_sysclk1, NULL,               LPSC_ALWAYS_ENABLED),

	/* REVISIT how to disable? */

	LPSC(40, 1, vicp,        pll1_sysclk2, NULL,               LPSC_ALWAYS_ENABLED),

	{ }

};



static int dm644x_psc_init(struct device *dev, void __iomem *base)

{

	return davinci_psc_register_clocks(dev, dm644x_psc_info, 41, base);

}



static struct clk_bulk_data dm644x_psc_parent_clks[] = {

	{ .id = "pll1_sysclk1" },

	{ .id = "pll1_sysclk2" },

	{ .id = "pll1_sysclk3" },

	{ .id = "pll1_sysclk5" },

	{ .id = "pll1_auxclk"  },

};



const struct davinci_psc_init_data dm644x_psc_init_data = {

	.parent_clks		= dm644x_psc_parent_clks,

	.num_parent_clks	= ARRAY_SIZE(dm644x_psc_parent_clks),

	.psc_init		= &dm644x_psc_init,

};

drivers/clk/davinci/psc.c

+1 −0
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@@ -494,6 +494,7 @@ static const struct platform_device_id davinci_psc_id_table[] = { 
	{ .name = "da850-psc1", .driver_data = (kernel_ulong_t)&da850_psc1_init_data },

	{ .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 },

	{ }

};

drivers/clk/davinci/psc.h

+1 −0
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@@ -102,5 +102,6 @@ extern const struct davinci_psc_init_data of_da850_psc0_init_data; 
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;



#endif /* __CLK_DAVINCI_PSC_H__ */

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