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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8d1a83faa6
We want to be able to get the clock both from the board file by its con_id and from the aemif driver by dev_id. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: David Lechner <david@lechnology.com>
86 lines
3.5 KiB
C
86 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* PSC clock descriptions for TI DaVinci DM644x
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*
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* Copyright (C) 2018 David Lechner <david@lechnology.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/clk/davinci.h>
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#include <linux/clk.h>
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#include <linux/clkdev.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include "psc.h"
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LPSC_CLKDEV1(vpss_master_clkdev, "master", "vpss");
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LPSC_CLKDEV1(vpss_slave_clkdev, "slave", "vpss");
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LPSC_CLKDEV2(emac_clkdev, NULL, "davinci_emac.1",
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"fck", "davinci_mdio.0");
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LPSC_CLKDEV1(usb_clkdev, "usb", NULL);
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LPSC_CLKDEV1(ide_clkdev, NULL, "palm_bk3710");
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LPSC_CLKDEV2(aemif_clkdev, "aemif", NULL,
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NULL, "ti-aemif");
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LPSC_CLKDEV1(mmcsd_clkdev, NULL, "dm6441-mmc.0");
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LPSC_CLKDEV1(asp0_clkdev, NULL, "davinci-mcbsp");
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LPSC_CLKDEV1(i2c_clkdev, NULL, "i2c_davinci.1");
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LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0");
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LPSC_CLKDEV1(uart1_clkdev, NULL, "serial8250.1");
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LPSC_CLKDEV1(uart2_clkdev, NULL, "serial8250.2");
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/* REVISIT: gpio-davinci.c should be modified to drop con_id */
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LPSC_CLKDEV1(gpio_clkdev, "gpio", NULL);
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LPSC_CLKDEV1(timer0_clkdev, "timer0", NULL);
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LPSC_CLKDEV1(timer2_clkdev, NULL, "davinci-wdt");
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static const struct davinci_lpsc_clk_info dm644x_psc_info[] = {
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LPSC(0, 0, vpss_master, pll1_sysclk3, vpss_master_clkdev, 0),
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LPSC(1, 0, vpss_slave, pll1_sysclk3, vpss_slave_clkdev, 0),
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LPSC(6, 0, emac, pll1_sysclk5, emac_clkdev, 0),
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LPSC(9, 0, usb, pll1_sysclk5, usb_clkdev, 0),
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LPSC(10, 0, ide, pll1_sysclk5, ide_clkdev, 0),
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LPSC(11, 0, vlynq, pll1_sysclk5, NULL, 0),
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LPSC(14, 0, aemif, pll1_sysclk5, aemif_clkdev, 0),
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LPSC(15, 0, mmcsd, pll1_sysclk5, mmcsd_clkdev, 0),
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LPSC(17, 0, asp0, pll1_sysclk5, asp0_clkdev, 0),
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LPSC(18, 0, i2c, pll1_auxclk, i2c_clkdev, 0),
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LPSC(19, 0, uart0, pll1_auxclk, uart0_clkdev, 0),
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LPSC(20, 0, uart1, pll1_auxclk, uart1_clkdev, 0),
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LPSC(21, 0, uart2, pll1_auxclk, uart2_clkdev, 0),
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LPSC(22, 0, spi, pll1_sysclk5, NULL, 0),
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LPSC(23, 0, pwm0, pll1_auxclk, NULL, 0),
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LPSC(24, 0, pwm1, pll1_auxclk, NULL, 0),
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LPSC(25, 0, pwm2, pll1_auxclk, NULL, 0),
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LPSC(26, 0, gpio, pll1_sysclk5, gpio_clkdev, 0),
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LPSC(27, 0, timer0, pll1_auxclk, timer0_clkdev, LPSC_ALWAYS_ENABLED),
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LPSC(28, 0, timer1, pll1_auxclk, NULL, 0),
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/* REVISIT: why can't this be disabled? */
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LPSC(29, 0, timer2, pll1_auxclk, timer2_clkdev, LPSC_ALWAYS_ENABLED),
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LPSC(31, 0, arm, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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/* REVISIT how to disable? */
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LPSC(39, 1, dsp, pll1_sysclk1, NULL, LPSC_ALWAYS_ENABLED),
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/* REVISIT how to disable? */
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LPSC(40, 1, vicp, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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{ }
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};
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int dm644x_psc_init(struct device *dev, void __iomem *base)
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{
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return davinci_psc_register_clocks(dev, dm644x_psc_info, 41, base);
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}
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static struct clk_bulk_data dm644x_psc_parent_clks[] = {
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{ .id = "pll1_sysclk1" },
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{ .id = "pll1_sysclk2" },
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{ .id = "pll1_sysclk3" },
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{ .id = "pll1_sysclk5" },
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{ .id = "pll1_auxclk" },
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};
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const struct davinci_psc_init_data dm644x_psc_init_data = {
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.parent_clks = dm644x_psc_parent_clks,
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.num_parent_clks = ARRAY_SIZE(dm644x_psc_parent_clks),
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.psc_init = &dm644x_psc_init,
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};
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