Commit b99bfca5 authored by David Lechner's avatar David Lechner Committed by Stephen Boyd
Browse files

clk: davinci: Add platform information for TI DM355 PSC 



This adds platform-specific declarations for the PSC 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 a47d6040

drivers/clk/davinci/Makefile

+1 −0
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@@ -12,4 +12,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DM646x) += pll-dm646x.o 
obj-y += psc.o

obj-$(CONFIG_ARCH_DAVINCI_DA830)	+= psc-da830.o

obj-$(CONFIG_ARCH_DAVINCI_DA850)	+= psc-da850.o

obj-$(CONFIG_ARCH_DAVINCI_DM355)	+= psc-dm355.o

endif

drivers/clk/davinci/psc-dm355.c

0 → 100644
+88 −0
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// SPDX-License-Identifier: GPL-2.0

/*

 * PSC clock descriptions for TI DaVinci DM355

 *

 * 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_CLKDEV1(spi1_clkdev,		NULL,		"spi_davinci.1");

LPSC_CLKDEV1(mmcsd1_clkdev,		NULL,		"dm6441-mmc.1");

LPSC_CLKDEV1(mcbsp1_clkdev,		NULL,		"davinci-mcbsp.1");

LPSC_CLKDEV1(usb_clkdev,		"usb",		NULL);

LPSC_CLKDEV1(spi2_clkdev,		NULL,		"spi_davinci.2");

LPSC_CLKDEV1(aemif_clkdev,		"aemif",	NULL);

LPSC_CLKDEV1(mmcsd0_clkdev,		NULL,		"dm6441-mmc.0");

LPSC_CLKDEV1(mcbsp0_clkdev,		NULL,		"davinci-mcbsp.0");

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");

LPSC_CLKDEV1(spi0_clkdev,		NULL,		"spi_davinci.0");

/* 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");

LPSC_CLKDEV1(vpss_dac_clkdev,		"vpss_dac",	NULL);



static const struct davinci_lpsc_clk_info dm355_psc_info[] = {

	LPSC(0,  0, vpss_master, pll1_sysclk4, vpss_master_clkdev, 0),

	LPSC(1,  0, vpss_slave,  pll1_sysclk4, vpss_slave_clkdev,  0),

	LPSC(5,  0, timer3,      pll1_auxclk,  NULL,               0),

	LPSC(6,  0, spi1,        pll1_sysclk2, spi1_clkdev,        0),

	LPSC(7,  0, mmcsd1,      pll1_sysclk2, mmcsd1_clkdev,      0),

	LPSC(8,  0, asp1,        pll1_sysclk2, NULL,               0),

	LPSC(9,  0, usb,         pll1_sysclk2, usb_clkdev,         0),

	LPSC(10, 0, pwm3,        pll1_auxclk,  NULL,               0),

	LPSC(11, 0, spi2,        pll1_sysclk2, spi2_clkdev,        0),

	LPSC(12, 0, rto,         pll1_auxclk,  NULL,               0),

	LPSC(14, 0, aemif,       pll1_sysclk2, aemif_clkdev,       0),

	LPSC(15, 0, mmcsd0,      pll1_sysclk2, mmcsd0_clkdev,      0),

	LPSC(17, 0, asp0,        pll1_sysclk2, NULL,               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_sysclk2, uart2_clkdev,       0),

	LPSC(22, 0, spi0,        pll1_sysclk2, spi0_clkdev,        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_sysclk2, 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_sysclk1, NULL,               LPSC_ALWAYS_ENABLED),

	LPSC(40, 0, mjcp,        pll1_sysclk1, NULL,               0),

	LPSC(41, 0, vpss_dac,    pll1_sysclk3, vpss_dac_clkdev,    0),

	{ }

};



static int dm355_psc_init(struct device *dev, void __iomem *base)

{

	return davinci_psc_register_clocks(dev, dm355_psc_info, 42, base);

}



static struct clk_bulk_data dm355_psc_parent_clks[] = {

	{ .id = "pll1_sysclk1" },

	{ .id = "pll1_sysclk2" },

	{ .id = "pll1_sysclk3" },

	{ .id = "pll1_sysclk4" },

	{ .id = "pll1_auxclk"  },

};



const struct davinci_psc_init_data dm355_psc_init_data = {

	.parent_clks		= dm355_psc_parent_clks,

	.num_parent_clks	= ARRAY_SIZE(dm355_psc_parent_clks),

	.psc_init		= &dm355_psc_init,

};

drivers/clk/davinci/psc.c

+1 −0
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@@ -492,6 +492,7 @@ static const struct platform_device_id davinci_psc_id_table[] = { 
	{ .name = "da830-psc1", .driver_data = (kernel_ulong_t)&da830_psc1_init_data },

	{ .name = "da850-psc0", .driver_data = (kernel_ulong_t)&da850_psc0_init_data },

	{ .name = "da850-psc1", .driver_data = (kernel_ulong_t)&da850_psc1_init_data },

	{ .name = "dm355-psc",  .driver_data = (kernel_ulong_t)&dm355_psc_init_data  },

	{ }

};

drivers/clk/davinci/psc.h

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@@ -100,5 +100,6 @@ extern const struct davinci_psc_init_data da850_psc0_init_data; 
extern const struct davinci_psc_init_data da850_psc1_init_data;

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;



#endif /* __CLK_DAVINCI_PSC_H__ */