156 строки
5.7 KiB
C
156 строки
5.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* PSC clock descriptions for TI DA850/OMAP-L138/AM18XX
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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/reset-controller.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/of.h>
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#include <linux/types.h>
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#include "psc.h"
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LPSC_CLKDEV1(emifa_clkdev, NULL, "ti-aemif");
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LPSC_CLKDEV1(spi0_clkdev, NULL, "spi_davinci.0");
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LPSC_CLKDEV1(mmcsd0_clkdev, NULL, "da830-mmc.0");
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LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0");
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/* REVISIT: used dev_id instead of con_id */
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LPSC_CLKDEV1(arm_clkdev, "arm", NULL);
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LPSC_CLKDEV1(dsp_clkdev, NULL, "davinci-rproc.0");
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static const struct davinci_lpsc_clk_info da850_psc0_info[] = {
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LPSC(0, 0, tpcc0, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(1, 0, tptc0, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(2, 0, tptc1, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(3, 0, emifa, async1, emifa_clkdev, 0),
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LPSC(4, 0, spi0, pll0_sysclk2, spi0_clkdev, 0),
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LPSC(5, 0, mmcsd0, pll0_sysclk2, mmcsd0_clkdev, 0),
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LPSC(6, 0, aintc, pll0_sysclk4, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(7, 0, arm_rom, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(9, 0, uart0, pll0_sysclk2, uart0_clkdev, 0),
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LPSC(13, 0, pruss, pll0_sysclk2, NULL, 0),
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LPSC(14, 0, arm, pll0_sysclk6, arm_clkdev, LPSC_ALWAYS_ENABLED | LPSC_SET_RATE_PARENT),
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LPSC(15, 1, dsp, pll0_sysclk1, dsp_clkdev, LPSC_FORCE | LPSC_LOCAL_RESET),
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{ }
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};
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LPSC_CLKDEV3(usb0_clkdev, "fck", "da830-usb-phy-clks",
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NULL, "musb-da8xx",
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NULL, "cppi41-dmaengine");
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LPSC_CLKDEV1(usb1_clkdev, NULL, "ohci-da8xx");
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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_CLKDEV2(emac_clkdev, NULL, "davinci_emac.1",
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"fck", "davinci_mdio.0");
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LPSC_CLKDEV1(mcasp0_clkdev, NULL, "davinci-mcasp.0");
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LPSC_CLKDEV1(sata_clkdev, "fck", "ahci_da850");
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LPSC_CLKDEV1(vpif_clkdev, NULL, "vpif");
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LPSC_CLKDEV1(spi1_clkdev, NULL, "spi_davinci.1");
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LPSC_CLKDEV1(i2c1_clkdev, NULL, "i2c_davinci.2");
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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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LPSC_CLKDEV1(mcbsp0_clkdev, NULL, "davinci-mcbsp.0");
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LPSC_CLKDEV1(mcbsp1_clkdev, NULL, "davinci-mcbsp.1");
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LPSC_CLKDEV1(lcdc_clkdev, "fck", "da8xx_lcdc.0");
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LPSC_CLKDEV3(ehrpwm_clkdev, "fck", "ehrpwm.0",
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"fck", "ehrpwm.1",
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NULL, "da830-tbclksync");
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LPSC_CLKDEV1(mmcsd1_clkdev, NULL, "da830-mmc.1");
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LPSC_CLKDEV3(ecap_clkdev, "fck", "ecap.0",
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"fck", "ecap.1",
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"fck", "ecap.2");
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static struct reset_control_lookup da850_psc0_reset_lookup_table[] = {
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RESET_LOOKUP("da850-psc0", 15, "davinci-rproc.0", NULL),
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};
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static int da850_psc0_init(struct device *dev, void __iomem *base)
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{
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reset_controller_add_lookup(da850_psc0_reset_lookup_table,
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ARRAY_SIZE(da850_psc0_reset_lookup_table));
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return davinci_psc_register_clocks(dev, da850_psc0_info, 16, base);
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}
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static int of_da850_psc0_init(struct device *dev, void __iomem *base)
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{
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return of_davinci_psc_clk_init(dev, da850_psc0_info, 16, base);
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}
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static struct clk_bulk_data da850_psc0_parent_clks[] = {
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{ .id = "pll0_sysclk1" },
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{ .id = "pll0_sysclk2" },
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{ .id = "pll0_sysclk4" },
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{ .id = "pll0_sysclk6" },
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{ .id = "async1" },
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};
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const struct davinci_psc_init_data da850_psc0_init_data = {
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.parent_clks = da850_psc0_parent_clks,
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.num_parent_clks = ARRAY_SIZE(da850_psc0_parent_clks),
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.psc_init = &da850_psc0_init,
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};
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const struct davinci_psc_init_data of_da850_psc0_init_data = {
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.parent_clks = da850_psc0_parent_clks,
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.num_parent_clks = ARRAY_SIZE(da850_psc0_parent_clks),
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.psc_init = &of_da850_psc0_init,
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};
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static const struct davinci_lpsc_clk_info da850_psc1_info[] = {
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LPSC(0, 0, tpcc1, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(1, 0, usb0, pll0_sysclk2, usb0_clkdev, 0),
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LPSC(2, 0, usb1, pll0_sysclk4, usb1_clkdev, 0),
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LPSC(3, 0, gpio, pll0_sysclk4, gpio_clkdev, 0),
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LPSC(5, 0, emac, pll0_sysclk4, emac_clkdev, 0),
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LPSC(6, 0, ddr, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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LPSC(7, 0, mcasp0, async3, mcasp0_clkdev, 0),
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LPSC(8, 0, sata, pll0_sysclk2, sata_clkdev, LPSC_FORCE),
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LPSC(9, 0, vpif, pll0_sysclk2, vpif_clkdev, 0),
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LPSC(10, 0, spi1, async3, spi1_clkdev, 0),
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LPSC(11, 0, i2c1, pll0_sysclk4, i2c1_clkdev, 0),
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LPSC(12, 0, uart1, async3, uart1_clkdev, 0),
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LPSC(13, 0, uart2, async3, uart2_clkdev, 0),
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LPSC(14, 0, mcbsp0, async3, mcbsp0_clkdev, 0),
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LPSC(15, 0, mcbsp1, async3, mcbsp1_clkdev, 0),
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LPSC(16, 0, lcdc, pll0_sysclk2, lcdc_clkdev, 0),
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LPSC(17, 0, ehrpwm, async3, ehrpwm_clkdev, 0),
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LPSC(18, 0, mmcsd1, pll0_sysclk2, mmcsd1_clkdev, 0),
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LPSC(20, 0, ecap, async3, ecap_clkdev, 0),
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LPSC(21, 0, tptc2, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
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{ }
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};
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static int da850_psc1_init(struct device *dev, void __iomem *base)
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{
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return davinci_psc_register_clocks(dev, da850_psc1_info, 32, base);
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}
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static int of_da850_psc1_init(struct device *dev, void __iomem *base)
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{
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return of_davinci_psc_clk_init(dev, da850_psc1_info, 32, base);
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}
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static struct clk_bulk_data da850_psc1_parent_clks[] = {
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{ .id = "pll0_sysclk2" },
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{ .id = "pll0_sysclk4" },
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{ .id = "async3" },
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};
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const struct davinci_psc_init_data da850_psc1_init_data = {
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.parent_clks = da850_psc1_parent_clks,
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.num_parent_clks = ARRAY_SIZE(da850_psc1_parent_clks),
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.psc_init = &da850_psc1_init,
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};
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const struct davinci_psc_init_data of_da850_psc1_init_data = {
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.parent_clks = da850_psc1_parent_clks,
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.num_parent_clks = ARRAY_SIZE(da850_psc1_parent_clks),
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.psc_init = &of_da850_psc1_init,
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};
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