forked from Minki/linux
aad739f946
This adds platform-specific declarations for the PSC clocks on TI DM646x based systems. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
// 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,
|
|
};
|