linux/drivers/clk/davinci/psc-da850.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * PSC clock descriptions for TI DA850/OMAP-L138/AM18XX
   4 *
   5 * Copyright (C) 2018 David Lechner <david@lechnology.com>
   6 */
   7
   8#include <linux/clk-provider.h>
   9#include <linux/reset-controller.h>
  10#include <linux/clk.h>
  11#include <linux/clkdev.h>
  12#include <linux/init.h>
  13#include <linux/kernel.h>
  14#include <linux/of.h>
  15#include <linux/types.h>
  16
  17#include "psc.h"
  18
  19LPSC_CLKDEV1(emifa_clkdev,      NULL,           "ti-aemif");
  20LPSC_CLKDEV1(spi0_clkdev,       NULL,           "spi_davinci.0");
  21LPSC_CLKDEV1(mmcsd0_clkdev,     NULL,           "da830-mmc.0");
  22LPSC_CLKDEV1(uart0_clkdev,      NULL,           "serial8250.0");
  23/* REVISIT: used dev_id instead of con_id */
  24LPSC_CLKDEV1(arm_clkdev,        "arm",          NULL);
  25LPSC_CLKDEV1(dsp_clkdev,        NULL,           "davinci-rproc.0");
  26
  27static const struct davinci_lpsc_clk_info da850_psc0_info[] = {
  28        LPSC(0,  0, tpcc0,   pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
  29        LPSC(1,  0, tptc0,   pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
  30        LPSC(2,  0, tptc1,   pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
  31        LPSC(3,  0, emifa,   async1,       emifa_clkdev,  0),
  32        LPSC(4,  0, spi0,    pll0_sysclk2, spi0_clkdev,   0),
  33        LPSC(5,  0, mmcsd0,  pll0_sysclk2, mmcsd0_clkdev, 0),
  34        LPSC(6,  0, aintc,   pll0_sysclk4, NULL,          LPSC_ALWAYS_ENABLED),
  35        LPSC(7,  0, arm_rom, pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
  36        LPSC(9,  0, uart0,   pll0_sysclk2, uart0_clkdev,  0),
  37        LPSC(13, 0, pruss,   pll0_sysclk2, NULL,          0),
  38        LPSC(14, 0, arm,     pll0_sysclk6, arm_clkdev,    LPSC_ALWAYS_ENABLED | LPSC_SET_RATE_PARENT),
  39        LPSC(15, 1, dsp,     pll0_sysclk1, dsp_clkdev,    LPSC_FORCE | LPSC_LOCAL_RESET),
  40        { }
  41};
  42
  43LPSC_CLKDEV3(usb0_clkdev,       "fck",  "da830-usb-phy-clks",
  44                                NULL,   "musb-da8xx",
  45                                NULL,   "cppi41-dmaengine");
  46LPSC_CLKDEV1(usb1_clkdev,       NULL,   "ohci-da8xx");
  47/* REVISIT: gpio-davinci.c should be modified to drop con_id */
  48LPSC_CLKDEV1(gpio_clkdev,       "gpio", NULL);
  49LPSC_CLKDEV2(emac_clkdev,       NULL,   "davinci_emac.1",
  50                                "fck",  "davinci_mdio.0");
  51LPSC_CLKDEV1(mcasp0_clkdev,     NULL,   "davinci-mcasp.0");
  52LPSC_CLKDEV1(sata_clkdev,       "fck",  "ahci_da850");
  53LPSC_CLKDEV1(vpif_clkdev,       NULL,   "vpif");
  54LPSC_CLKDEV1(spi1_clkdev,       NULL,   "spi_davinci.1");
  55LPSC_CLKDEV1(i2c1_clkdev,       NULL,   "i2c_davinci.2");
  56LPSC_CLKDEV1(uart1_clkdev,      NULL,   "serial8250.1");
  57LPSC_CLKDEV1(uart2_clkdev,      NULL,   "serial8250.2");
  58LPSC_CLKDEV1(mcbsp0_clkdev,     NULL,   "davinci-mcbsp.0");
  59LPSC_CLKDEV1(mcbsp1_clkdev,     NULL,   "davinci-mcbsp.1");
  60LPSC_CLKDEV1(lcdc_clkdev,       "fck",  "da8xx_lcdc.0");
  61LPSC_CLKDEV3(ehrpwm_clkdev,     "fck",  "ehrpwm.0",
  62                                "fck",  "ehrpwm.1",
  63                                NULL,   "da830-tbclksync");
  64LPSC_CLKDEV1(mmcsd1_clkdev,     NULL,   "da830-mmc.1");
  65LPSC_CLKDEV3(ecap_clkdev,       "fck",  "ecap.0",
  66                                "fck",  "ecap.1",
  67                                "fck",  "ecap.2");
  68
  69static struct reset_control_lookup da850_psc0_reset_lookup_table[] = {
  70        RESET_LOOKUP("da850-psc0", 15, "davinci-rproc.0", NULL),
  71};
  72
  73static int da850_psc0_init(struct device *dev, void __iomem *base)
  74{
  75        reset_controller_add_lookup(da850_psc0_reset_lookup_table,
  76                                    ARRAY_SIZE(da850_psc0_reset_lookup_table));
  77        return davinci_psc_register_clocks(dev, da850_psc0_info, 16, base);
  78}
  79
  80static int of_da850_psc0_init(struct device *dev, void __iomem *base)
  81{
  82        return of_davinci_psc_clk_init(dev, da850_psc0_info, 16, base);
  83}
  84
  85static struct clk_bulk_data da850_psc0_parent_clks[] = {
  86        { .id = "pll0_sysclk1" },
  87        { .id = "pll0_sysclk2" },
  88        { .id = "pll0_sysclk4" },
  89        { .id = "pll0_sysclk6" },
  90        { .id = "async1"       },
  91};
  92
  93const struct davinci_psc_init_data da850_psc0_init_data = {
  94        .parent_clks            = da850_psc0_parent_clks,
  95        .num_parent_clks        = ARRAY_SIZE(da850_psc0_parent_clks),
  96        .psc_init               = &da850_psc0_init,
  97};
  98
  99const struct davinci_psc_init_data of_da850_psc0_init_data = {
 100        .parent_clks            = da850_psc0_parent_clks,
 101        .num_parent_clks        = ARRAY_SIZE(da850_psc0_parent_clks),
 102        .psc_init               = &of_da850_psc0_init,
 103};
 104
 105static const struct davinci_lpsc_clk_info da850_psc1_info[] = {
 106        LPSC(0,  0, tpcc1,  pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
 107        LPSC(1,  0, usb0,   pll0_sysclk2, usb0_clkdev,   0),
 108        LPSC(2,  0, usb1,   pll0_sysclk4, usb1_clkdev,   0),
 109        LPSC(3,  0, gpio,   pll0_sysclk4, gpio_clkdev,   0),
 110        LPSC(5,  0, emac,   pll0_sysclk4, emac_clkdev,   0),
 111        LPSC(6,  0, ddr,    pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
 112        LPSC(7,  0, mcasp0, async3,       mcasp0_clkdev, 0),
 113        LPSC(8,  0, sata,   pll0_sysclk2, sata_clkdev,   LPSC_FORCE),
 114        LPSC(9,  0, vpif,   pll0_sysclk2, vpif_clkdev,   0),
 115        LPSC(10, 0, spi1,   async3,       spi1_clkdev,   0),
 116        LPSC(11, 0, i2c1,   pll0_sysclk4, i2c1_clkdev,   0),
 117        LPSC(12, 0, uart1,  async3,       uart1_clkdev,  0),
 118        LPSC(13, 0, uart2,  async3,       uart2_clkdev,  0),
 119        LPSC(14, 0, mcbsp0, async3,       mcbsp0_clkdev, 0),
 120        LPSC(15, 0, mcbsp1, async3,       mcbsp1_clkdev, 0),
 121        LPSC(16, 0, lcdc,   pll0_sysclk2, lcdc_clkdev,   0),
 122        LPSC(17, 0, ehrpwm, async3,       ehrpwm_clkdev, 0),
 123        LPSC(18, 0, mmcsd1, pll0_sysclk2, mmcsd1_clkdev, 0),
 124        LPSC(20, 0, ecap,   async3,       ecap_clkdev,   0),
 125        LPSC(21, 0, tptc2,  pll0_sysclk2, NULL,          LPSC_ALWAYS_ENABLED),
 126        { }
 127};
 128
 129static int da850_psc1_init(struct device *dev, void __iomem *base)
 130{
 131        return davinci_psc_register_clocks(dev, da850_psc1_info, 32, base);
 132}
 133
 134static int of_da850_psc1_init(struct device *dev, void __iomem *base)
 135{
 136        return of_davinci_psc_clk_init(dev, da850_psc1_info, 32, base);
 137}
 138
 139static struct clk_bulk_data da850_psc1_parent_clks[] = {
 140        { .id = "pll0_sysclk2" },
 141        { .id = "pll0_sysclk4" },
 142        { .id = "async3"       },
 143};
 144
 145const struct davinci_psc_init_data da850_psc1_init_data = {
 146        .parent_clks            = da850_psc1_parent_clks,
 147        .num_parent_clks        = ARRAY_SIZE(da850_psc1_parent_clks),
 148        .psc_init               = &da850_psc1_init,
 149};
 150
 151const struct davinci_psc_init_data of_da850_psc1_init_data = {
 152        .parent_clks            = da850_psc1_parent_clks,
 153        .num_parent_clks        = ARRAY_SIZE(da850_psc1_parent_clks),
 154        .psc_init               = &of_da850_psc1_init,
 155};
 156