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linux/drivers/clk/hisilicon/crg-hi3798cv200.c
Thomas Gleixner 1ccea77e2a treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not see http www gnu org licenses

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details [based]
  [from] [clk] [highbank] [c] you should have received a copy of the
  gnu general public license along with this program if not see http
  www gnu org licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 355 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:45 +02:00

402 lines
12 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Hi3798CV200 Clock and Reset Generator Driver
*
* Copyright (c) 2016 HiSilicon Technologies Co., Ltd.
*/
#include <dt-bindings/clock/histb-clock.h>
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "clk.h"
#include "crg.h"
#include "reset.h"
/* hi3798CV200 core CRG */
#define HI3798CV200_INNER_CLK_OFFSET 64
#define HI3798CV200_FIXED_24M 65
#define HI3798CV200_FIXED_25M 66
#define HI3798CV200_FIXED_50M 67
#define HI3798CV200_FIXED_75M 68
#define HI3798CV200_FIXED_100M 69
#define HI3798CV200_FIXED_150M 70
#define HI3798CV200_FIXED_200M 71
#define HI3798CV200_FIXED_250M 72
#define HI3798CV200_FIXED_300M 73
#define HI3798CV200_FIXED_400M 74
#define HI3798CV200_MMC_MUX 75
#define HI3798CV200_ETH_PUB_CLK 76
#define HI3798CV200_ETH_BUS_CLK 77
#define HI3798CV200_ETH_BUS0_CLK 78
#define HI3798CV200_ETH_BUS1_CLK 79
#define HI3798CV200_COMBPHY1_MUX 80
#define HI3798CV200_FIXED_12M 81
#define HI3798CV200_FIXED_48M 82
#define HI3798CV200_FIXED_60M 83
#define HI3798CV200_FIXED_166P5M 84
#define HI3798CV200_SDIO0_MUX 85
#define HI3798CV200_COMBPHY0_MUX 86
#define HI3798CV200_CRG_NR_CLKS 128
static const struct hisi_fixed_rate_clock hi3798cv200_fixed_rate_clks[] = {
{ HISTB_OSC_CLK, "clk_osc", NULL, 0, 24000000, },
{ HISTB_APB_CLK, "clk_apb", NULL, 0, 100000000, },
{ HISTB_AHB_CLK, "clk_ahb", NULL, 0, 200000000, },
{ HI3798CV200_FIXED_12M, "12m", NULL, 0, 12000000, },
{ HI3798CV200_FIXED_24M, "24m", NULL, 0, 24000000, },
{ HI3798CV200_FIXED_25M, "25m", NULL, 0, 25000000, },
{ HI3798CV200_FIXED_48M, "48m", NULL, 0, 48000000, },
{ HI3798CV200_FIXED_50M, "50m", NULL, 0, 50000000, },
{ HI3798CV200_FIXED_60M, "60m", NULL, 0, 60000000, },
{ HI3798CV200_FIXED_75M, "75m", NULL, 0, 75000000, },
{ HI3798CV200_FIXED_100M, "100m", NULL, 0, 100000000, },
{ HI3798CV200_FIXED_150M, "150m", NULL, 0, 150000000, },
{ HI3798CV200_FIXED_166P5M, "166p5m", NULL, 0, 165000000, },
{ HI3798CV200_FIXED_200M, "200m", NULL, 0, 200000000, },
{ HI3798CV200_FIXED_250M, "250m", NULL, 0, 250000000, },
};
static const char *const mmc_mux_p[] = {
"100m", "50m", "25m", "200m", "150m" };
static u32 mmc_mux_table[] = {0, 1, 2, 3, 6};
static const char *const comphy_mux_p[] = {
"100m", "25m"};
static u32 comphy_mux_table[] = {2, 3};
static const char *const sdio_mux_p[] = {
"100m", "50m", "150m", "166p5m" };
static u32 sdio_mux_table[] = {0, 1, 2, 3};
static struct hisi_mux_clock hi3798cv200_mux_clks[] = {
{ HI3798CV200_MMC_MUX, "mmc_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
CLK_SET_RATE_PARENT, 0xa0, 8, 3, 0, mmc_mux_table, },
{ HI3798CV200_COMBPHY0_MUX, "combphy0_mux",
comphy_mux_p, ARRAY_SIZE(comphy_mux_p),
CLK_SET_RATE_PARENT, 0x188, 2, 2, 0, comphy_mux_table, },
{ HI3798CV200_COMBPHY1_MUX, "combphy1_mux",
comphy_mux_p, ARRAY_SIZE(comphy_mux_p),
CLK_SET_RATE_PARENT, 0x188, 10, 2, 0, comphy_mux_table, },
{ HI3798CV200_SDIO0_MUX, "sdio0_mux", sdio_mux_p,
ARRAY_SIZE(sdio_mux_p), CLK_SET_RATE_PARENT,
0x9c, 8, 2, 0, sdio_mux_table, },
};
static u32 mmc_phase_regvals[] = {0, 1, 2, 3, 4, 5, 6, 7};
static u32 mmc_phase_degrees[] = {0, 45, 90, 135, 180, 225, 270, 315};
static struct hisi_phase_clock hi3798cv200_phase_clks[] = {
{ HISTB_MMC_SAMPLE_CLK, "mmc_sample", "clk_mmc_ciu",
CLK_SET_RATE_PARENT, 0xa0, 12, 3, mmc_phase_degrees,
mmc_phase_regvals, ARRAY_SIZE(mmc_phase_regvals) },
{ HISTB_MMC_DRV_CLK, "mmc_drive", "clk_mmc_ciu",
CLK_SET_RATE_PARENT, 0xa0, 16, 3, mmc_phase_degrees,
mmc_phase_regvals, ARRAY_SIZE(mmc_phase_regvals) },
};
static const struct hisi_gate_clock hi3798cv200_gate_clks[] = {
/* UART */
{ HISTB_UART2_CLK, "clk_uart2", "75m",
CLK_SET_RATE_PARENT, 0x68, 4, 0, },
/* I2C */
{ HISTB_I2C0_CLK, "clk_i2c0", "clk_apb",
CLK_SET_RATE_PARENT, 0x6C, 4, 0, },
{ HISTB_I2C1_CLK, "clk_i2c1", "clk_apb",
CLK_SET_RATE_PARENT, 0x6C, 8, 0, },
{ HISTB_I2C2_CLK, "clk_i2c2", "clk_apb",
CLK_SET_RATE_PARENT, 0x6C, 12, 0, },
{ HISTB_I2C3_CLK, "clk_i2c3", "clk_apb",
CLK_SET_RATE_PARENT, 0x6C, 16, 0, },
{ HISTB_I2C4_CLK, "clk_i2c4", "clk_apb",
CLK_SET_RATE_PARENT, 0x6C, 20, 0, },
/* SPI */
{ HISTB_SPI0_CLK, "clk_spi0", "clk_apb",
CLK_SET_RATE_PARENT, 0x70, 0, 0, },
/* SDIO */
{ HISTB_SDIO0_BIU_CLK, "clk_sdio0_biu", "200m",
CLK_SET_RATE_PARENT, 0x9c, 0, 0, },
{ HISTB_SDIO0_CIU_CLK, "clk_sdio0_ciu", "sdio0_mux",
CLK_SET_RATE_PARENT, 0x9c, 1, 0, },
/* EMMC */
{ HISTB_MMC_BIU_CLK, "clk_mmc_biu", "200m",
CLK_SET_RATE_PARENT, 0xa0, 0, 0, },
{ HISTB_MMC_CIU_CLK, "clk_mmc_ciu", "mmc_mux",
CLK_SET_RATE_PARENT, 0xa0, 1, 0, },
/* PCIE*/
{ HISTB_PCIE_BUS_CLK, "clk_pcie_bus", "200m",
CLK_SET_RATE_PARENT, 0x18c, 0, 0, },
{ HISTB_PCIE_SYS_CLK, "clk_pcie_sys", "100m",
CLK_SET_RATE_PARENT, 0x18c, 1, 0, },
{ HISTB_PCIE_PIPE_CLK, "clk_pcie_pipe", "250m",
CLK_SET_RATE_PARENT, 0x18c, 2, 0, },
{ HISTB_PCIE_AUX_CLK, "clk_pcie_aux", "24m",
CLK_SET_RATE_PARENT, 0x18c, 3, 0, },
/* Ethernet */
{ HI3798CV200_ETH_PUB_CLK, "clk_pub", NULL,
CLK_SET_RATE_PARENT, 0xcc, 5, 0, },
{ HI3798CV200_ETH_BUS_CLK, "clk_bus", "clk_pub",
CLK_SET_RATE_PARENT, 0xcc, 0, 0, },
{ HI3798CV200_ETH_BUS0_CLK, "clk_bus_m0", "clk_bus",
CLK_SET_RATE_PARENT, 0xcc, 1, 0, },
{ HI3798CV200_ETH_BUS1_CLK, "clk_bus_m1", "clk_bus",
CLK_SET_RATE_PARENT, 0xcc, 2, 0, },
{ HISTB_ETH0_MAC_CLK, "clk_mac0", "clk_bus_m0",
CLK_SET_RATE_PARENT, 0xcc, 3, 0, },
{ HISTB_ETH0_MACIF_CLK, "clk_macif0", "clk_bus_m0",
CLK_SET_RATE_PARENT, 0xcc, 24, 0, },
{ HISTB_ETH1_MAC_CLK, "clk_mac1", "clk_bus_m1",
CLK_SET_RATE_PARENT, 0xcc, 4, 0, },
{ HISTB_ETH1_MACIF_CLK, "clk_macif1", "clk_bus_m1",
CLK_SET_RATE_PARENT, 0xcc, 25, 0, },
/* COMBPHY0 */
{ HISTB_COMBPHY0_CLK, "clk_combphy0", "combphy0_mux",
CLK_SET_RATE_PARENT, 0x188, 0, 0, },
/* COMBPHY1 */
{ HISTB_COMBPHY1_CLK, "clk_combphy1", "combphy1_mux",
CLK_SET_RATE_PARENT, 0x188, 8, 0, },
/* USB2 */
{ HISTB_USB2_BUS_CLK, "clk_u2_bus", "clk_ahb",
CLK_SET_RATE_PARENT, 0xb8, 0, 0, },
{ HISTB_USB2_PHY_CLK, "clk_u2_phy", "60m",
CLK_SET_RATE_PARENT, 0xb8, 4, 0, },
{ HISTB_USB2_12M_CLK, "clk_u2_12m", "12m",
CLK_SET_RATE_PARENT, 0xb8, 2, 0 },
{ HISTB_USB2_48M_CLK, "clk_u2_48m", "48m",
CLK_SET_RATE_PARENT, 0xb8, 1, 0 },
{ HISTB_USB2_UTMI_CLK, "clk_u2_utmi", "60m",
CLK_SET_RATE_PARENT, 0xb8, 5, 0 },
{ HISTB_USB2_OTG_UTMI_CLK, "clk_u2_otg_utmi", "60m",
CLK_SET_RATE_PARENT, 0xb8, 3, 0 },
{ HISTB_USB2_PHY1_REF_CLK, "clk_u2_phy1_ref", "24m",
CLK_SET_RATE_PARENT, 0xbc, 0, 0 },
{ HISTB_USB2_PHY2_REF_CLK, "clk_u2_phy2_ref", "24m",
CLK_SET_RATE_PARENT, 0xbc, 2, 0 },
/* USB3 */
{ HISTB_USB3_BUS_CLK, "clk_u3_bus", NULL,
CLK_SET_RATE_PARENT, 0xb0, 0, 0 },
{ HISTB_USB3_UTMI_CLK, "clk_u3_utmi", NULL,
CLK_SET_RATE_PARENT, 0xb0, 4, 0 },
{ HISTB_USB3_PIPE_CLK, "clk_u3_pipe", NULL,
CLK_SET_RATE_PARENT, 0xb0, 3, 0 },
{ HISTB_USB3_SUSPEND_CLK, "clk_u3_suspend", NULL,
CLK_SET_RATE_PARENT, 0xb0, 2, 0 },
{ HISTB_USB3_BUS_CLK1, "clk_u3_bus1", NULL,
CLK_SET_RATE_PARENT, 0xb0, 16, 0 },
{ HISTB_USB3_UTMI_CLK1, "clk_u3_utmi1", NULL,
CLK_SET_RATE_PARENT, 0xb0, 20, 0 },
{ HISTB_USB3_PIPE_CLK1, "clk_u3_pipe1", NULL,
CLK_SET_RATE_PARENT, 0xb0, 19, 0 },
{ HISTB_USB3_SUSPEND_CLK1, "clk_u3_suspend1", NULL,
CLK_SET_RATE_PARENT, 0xb0, 18, 0 },
};
static struct hisi_clock_data *hi3798cv200_clk_register(
struct platform_device *pdev)
{
struct hisi_clock_data *clk_data;
int ret;
clk_data = hisi_clk_alloc(pdev, HI3798CV200_CRG_NR_CLKS);
if (!clk_data)
return ERR_PTR(-ENOMEM);
/* hisi_phase_clock is resource managed */
ret = hisi_clk_register_phase(&pdev->dev,
hi3798cv200_phase_clks,
ARRAY_SIZE(hi3798cv200_phase_clks),
clk_data);
if (ret)
return ERR_PTR(ret);
ret = hisi_clk_register_fixed_rate(hi3798cv200_fixed_rate_clks,
ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
clk_data);
if (ret)
return ERR_PTR(ret);
ret = hisi_clk_register_mux(hi3798cv200_mux_clks,
ARRAY_SIZE(hi3798cv200_mux_clks),
clk_data);
if (ret)
goto unregister_fixed_rate;
ret = hisi_clk_register_gate(hi3798cv200_gate_clks,
ARRAY_SIZE(hi3798cv200_gate_clks),
clk_data);
if (ret)
goto unregister_mux;
ret = of_clk_add_provider(pdev->dev.of_node,
of_clk_src_onecell_get, &clk_data->clk_data);
if (ret)
goto unregister_gate;
return clk_data;
unregister_gate:
hisi_clk_unregister_gate(hi3798cv200_gate_clks,
ARRAY_SIZE(hi3798cv200_gate_clks),
clk_data);
unregister_mux:
hisi_clk_unregister_mux(hi3798cv200_mux_clks,
ARRAY_SIZE(hi3798cv200_mux_clks),
clk_data);
unregister_fixed_rate:
hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks,
ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
clk_data);
return ERR_PTR(ret);
}
static void hi3798cv200_clk_unregister(struct platform_device *pdev)
{
struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
of_clk_del_provider(pdev->dev.of_node);
hisi_clk_unregister_gate(hi3798cv200_gate_clks,
ARRAY_SIZE(hi3798cv200_gate_clks),
crg->clk_data);
hisi_clk_unregister_mux(hi3798cv200_mux_clks,
ARRAY_SIZE(hi3798cv200_mux_clks),
crg->clk_data);
hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks,
ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
crg->clk_data);
}
static const struct hisi_crg_funcs hi3798cv200_crg_funcs = {
.register_clks = hi3798cv200_clk_register,
.unregister_clks = hi3798cv200_clk_unregister,
};
/* hi3798CV200 sysctrl CRG */
#define HI3798CV200_SYSCTRL_NR_CLKS 16
static const struct hisi_gate_clock hi3798cv200_sysctrl_gate_clks[] = {
{ HISTB_IR_CLK, "clk_ir", "24m",
CLK_SET_RATE_PARENT, 0x48, 4, 0, },
{ HISTB_TIMER01_CLK, "clk_timer01", "24m",
CLK_SET_RATE_PARENT, 0x48, 6, 0, },
{ HISTB_UART0_CLK, "clk_uart0", "75m",
CLK_SET_RATE_PARENT, 0x48, 10, 0, },
};
static struct hisi_clock_data *hi3798cv200_sysctrl_clk_register(
struct platform_device *pdev)
{
struct hisi_clock_data *clk_data;
int ret;
clk_data = hisi_clk_alloc(pdev, HI3798CV200_SYSCTRL_NR_CLKS);
if (!clk_data)
return ERR_PTR(-ENOMEM);
ret = hisi_clk_register_gate(hi3798cv200_sysctrl_gate_clks,
ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
clk_data);
if (ret)
return ERR_PTR(ret);
ret = of_clk_add_provider(pdev->dev.of_node,
of_clk_src_onecell_get, &clk_data->clk_data);
if (ret)
goto unregister_gate;
return clk_data;
unregister_gate:
hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks,
ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
clk_data);
return ERR_PTR(ret);
}
static void hi3798cv200_sysctrl_clk_unregister(struct platform_device *pdev)
{
struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
of_clk_del_provider(pdev->dev.of_node);
hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks,
ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
crg->clk_data);
}
static const struct hisi_crg_funcs hi3798cv200_sysctrl_funcs = {
.register_clks = hi3798cv200_sysctrl_clk_register,
.unregister_clks = hi3798cv200_sysctrl_clk_unregister,
};
static const struct of_device_id hi3798cv200_crg_match_table[] = {
{ .compatible = "hisilicon,hi3798cv200-crg",
.data = &hi3798cv200_crg_funcs },
{ .compatible = "hisilicon,hi3798cv200-sysctrl",
.data = &hi3798cv200_sysctrl_funcs },
{ }
};
MODULE_DEVICE_TABLE(of, hi3798cv200_crg_match_table);
static int hi3798cv200_crg_probe(struct platform_device *pdev)
{
struct hisi_crg_dev *crg;
crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
if (!crg)
return -ENOMEM;
crg->funcs = of_device_get_match_data(&pdev->dev);
if (!crg->funcs)
return -ENOENT;
crg->rstc = hisi_reset_init(pdev);
if (!crg->rstc)
return -ENOMEM;
crg->clk_data = crg->funcs->register_clks(pdev);
if (IS_ERR(crg->clk_data)) {
hisi_reset_exit(crg->rstc);
return PTR_ERR(crg->clk_data);
}
platform_set_drvdata(pdev, crg);
return 0;
}
static int hi3798cv200_crg_remove(struct platform_device *pdev)
{
struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
hisi_reset_exit(crg->rstc);
crg->funcs->unregister_clks(pdev);
return 0;
}
static struct platform_driver hi3798cv200_crg_driver = {
.probe = hi3798cv200_crg_probe,
.remove = hi3798cv200_crg_remove,
.driver = {
.name = "hi3798cv200-crg",
.of_match_table = hi3798cv200_crg_match_table,
},
};
static int __init hi3798cv200_crg_init(void)
{
return platform_driver_register(&hi3798cv200_crg_driver);
}
core_initcall(hi3798cv200_crg_init);
static void __exit hi3798cv200_crg_exit(void)
{
platform_driver_unregister(&hi3798cv200_crg_driver);
}
module_exit(hi3798cv200_crg_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("HiSilicon Hi3798CV200 CRG Driver");
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