Commit c2952e27 authored by David Lechner's avatar David Lechner Committed by Stephen Boyd
Browse files

clk: davinci: Add platform information for TI DA830 PSC 



This adds platform-specific declarations for the PSC clocks on TI DA830/
OMAP-L137/AM17XX SoCs.

Signed-off-by: default avatarDavid Lechner <david@lechnology.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent c6ed4d73

drivers/clk/davinci/Makefile

+1 −0
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@@ -10,4 +10,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DM644x) += pll-dm644x.o 
obj-$(CONFIG_ARCH_DAVINCI_DM646x)	+= pll-dm646x.o



obj-y += psc.o

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

endif

drivers/clk/davinci/psc-da830.c

0 → 100644
+116 −0
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// SPDX-License-Identifier: GPL-2.0

/*

 * PSC clock descriptions for TI DA830/OMAP-L137/AM17XX

 *

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

LPSC_CLKDEV1(mmcsd_clkdev,	NULL,	"da830-mmc.0");

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



static const struct davinci_lpsc_clk_info da830_psc0_info[] = {

	LPSC(0,  0, tpcc,     pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(1,  0, tptc0,    pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(2,  0, tptc1,    pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(3,  0, aemif,    pll0_sysclk3, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(4,  0, spi0,     pll0_sysclk2, spi0_clkdev,  0),

	LPSC(5,  0, mmcsd,    pll0_sysclk2, mmcsd_clkdev, 0),

	LPSC(6,  0, aintc,    pll0_sysclk4, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(7,  0, arm_rom,  pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(8,  0, secu_mgr, pll0_sysclk4, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(9,  0, uart0,    pll0_sysclk2, uart0_clkdev, 0),

	LPSC(10, 0, scr0_ss,  pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(11, 0, scr1_ss,  pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(12, 0, scr2_ss,  pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(13, 0, pruss,    pll0_sysclk2, NULL,         LPSC_ALWAYS_ENABLED),

	LPSC(14, 0, arm,      pll0_sysclk6, NULL,         LPSC_ALWAYS_ENABLED),

	{ }

};



static int da830_psc0_init(struct device *dev, void __iomem *base)

{

	return davinci_psc_register_clocks(dev, da830_psc0_info, 16, base);

}



static struct clk_bulk_data da830_psc0_parent_clks[] = {

	{ .id = "pll0_sysclk2" },

	{ .id = "pll0_sysclk3" },

	{ .id = "pll0_sysclk4" },

	{ .id = "pll0_sysclk6" },

};



const struct davinci_psc_init_data da830_psc0_init_data = {

	.parent_clks		= da830_psc0_parent_clks,

	.num_parent_clks	= ARRAY_SIZE(da830_psc0_parent_clks),

	.psc_init		= &da830_psc0_init,

};



LPSC_CLKDEV2(usb0_clkdev,	NULL,	"musb-da8xx",

				NULL,	"cppi41-dmaengine");

LPSC_CLKDEV1(usb1_clkdev,	NULL,	"ohci-da8xx");

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

LPSC_CLKDEV1(gpio_clkdev,	"gpio",	NULL);

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

				"fck",	"davinci_mdio.0");

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

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

LPSC_CLKDEV1(mcasp2_clkdev,	NULL,	"davinci-mcasp.2");

LPSC_CLKDEV1(spi1_clkdev,	NULL,	"spi_davinci.1");

LPSC_CLKDEV1(i2c1_clkdev,	NULL,	"i2c_davinci.2");

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

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

LPSC_CLKDEV1(lcdc_clkdev,	"fck",	"da8xx_lcdc.0");

LPSC_CLKDEV2(pwm_clkdev,	"fck",	"ehrpwm.0",

				"fck",	"ehrpwm.1");

LPSC_CLKDEV3(ecap_clkdev,	"fck",	"ecap.0",

				"fck",	"ecap.1",

				"fck",	"ecap.2");

LPSC_CLKDEV2(eqep_clkdev,	NULL,	"eqep.0",

				NULL,	"eqep.1");



static const struct davinci_lpsc_clk_info da830_psc1_info[] = {

	LPSC(1,  0, usb0,   pll0_sysclk2, usb0_clkdev,   0),

	LPSC(2,  0, usb1,   pll0_sysclk4, usb1_clkdev,   0),

	LPSC(3,  0, gpio,   pll0_sysclk4, gpio_clkdev,   0),

	LPSC(5,  0, emac,   pll0_sysclk4, emac_clkdev,   0),

	LPSC(6,  0, emif3,  pll0_sysclk5, NULL,          LPSC_ALWAYS_ENABLED),

	LPSC(7,  0, mcasp0, pll0_sysclk2, mcasp0_clkdev, 0),

	LPSC(8,  0, mcasp1, pll0_sysclk2, mcasp1_clkdev, 0),

	LPSC(9,  0, mcasp2, pll0_sysclk2, mcasp2_clkdev, 0),

	LPSC(10, 0, spi1,   pll0_sysclk2, spi1_clkdev,   0),

	LPSC(11, 0, i2c1,   pll0_sysclk4, i2c1_clkdev,   0),

	LPSC(12, 0, uart1,  pll0_sysclk2, uart1_clkdev,  0),

	LPSC(13, 0, uart2,  pll0_sysclk2, uart2_clkdev,  0),

	LPSC(16, 0, lcdc,   pll0_sysclk2, lcdc_clkdev,   0),

	LPSC(17, 0, pwm,    pll0_sysclk2, pwm_clkdev,    0),

	LPSC(20, 0, ecap,   pll0_sysclk2, ecap_clkdev,   0),

	LPSC(21, 0, eqep,   pll0_sysclk2, eqep_clkdev,   0),

	{ }

};



static int da830_psc1_init(struct device *dev, void __iomem *base)

{

	return davinci_psc_register_clocks(dev, da830_psc1_info, 32, base);

}



static struct clk_bulk_data da830_psc1_parent_clks[] = {

	{ .id = "pll0_sysclk2" },

	{ .id = "pll0_sysclk4" },

	{ .id = "pll0_sysclk5" },

};



const struct davinci_psc_init_data da830_psc1_init_data = {

	.parent_clks		= da830_psc1_parent_clks,

	.num_parent_clks	= ARRAY_SIZE(da830_psc1_parent_clks),

	.psc_init		= &da830_psc1_init,

};

drivers/clk/davinci/psc.c

+2 −0
Original line number Diff line number Diff line
@@ -486,6 +486,8 @@ static const struct of_device_id davinci_psc_of_match[] = { 
};



static const struct platform_device_id davinci_psc_id_table[] = {

	{ .name = "da830-psc0", .driver_data = (kernel_ulong_t)&da830_psc0_init_data },

	{ .name = "da830-psc1", .driver_data = (kernel_ulong_t)&da830_psc1_init_data },

	{ }

};

drivers/clk/davinci/psc.h

+3 −0
Original line number Diff line number Diff line
@@ -94,4 +94,7 @@ struct davinci_psc_init_data { 
	int (*psc_init)(struct device *dev, void __iomem *base);

};



extern const struct davinci_psc_init_data da830_psc0_init_data;

extern const struct davinci_psc_init_data da830_psc1_init_data;



#endif /* __CLK_DAVINCI_PSC_H__ */