Commit 692b12c7 authored by Olof Johansson's avatar Olof Johansson

Merge tag 'samsung-drivers-exynos5440-4.19' of...

Merge tag 'samsung-drivers-exynos5440-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Exynos5440 drivers removal

The Exynos5440 (quad-core A15 with GMAC, PCIe, SATA) was targeting
server platforms but it did not make it to the market really.  There are
no development boards with it and probably there are no real products
neither.  The development for Exynos5440 ended in 2013 and since then
the platform is in maintenance mode.

Removing Exynos5440 makes our life slightly easier: less maintenance,
smaller code, reduced number of quirks, no need to preserve DTB
backward-compatibility.

The Device Tree sources and some of the drivers for Exynos5440 were
already removed.  This removes remaining drivers.

* tag 'samsung-drivers-exynos5440-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  usb: host: exynos: Remove support for Exynos5440
  clk: samsung: Remove support for Exynos5440
  cpufreq: exynos: Remove support for Exynos5440
  ata: ahci-platform: Remove support for Exynos5440
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents 7401056d c708e462
...@@ -17,7 +17,6 @@ Required properties: ...@@ -17,7 +17,6 @@ Required properties:
- "marvell,armada-380-ahci" - "marvell,armada-380-ahci"
- "marvell,armada-3700-ahci" - "marvell,armada-3700-ahci"
- "snps,dwc-ahci" - "snps,dwc-ahci"
- "snps,exynos5440-ahci"
- "snps,spear-ahci" - "snps,spear-ahci"
- "generic-ahci" - "generic-ahci"
- interrupts : <interrupt mapping for SATA IRQ> - interrupts : <interrupt mapping for SATA IRQ>
......
* Samsung Exynos5440 Clock Controller
The Exynos5440 clock controller generates and supplies clock to various
controllers within the Exynos5440 SoC.
Required Properties:
- compatible: should be "samsung,exynos5440-clock".
- reg: physical base address of the controller and length of memory mapped
region.
- #clock-cells: should be 1.
Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume.
All available clocks are defined as preprocessor macros in
dt-bindings/clock/exynos5440.h header and can be used in device
tree sources.
Example: An example of a clock controller node is listed below.
clock: clock-controller@10010000 {
compatible = "samsung,exynos5440-clock";
reg = <0x160000 0x10000>;
#clock-cells = <1>;
};
Exynos5440 cpufreq driver
-------------------
Exynos5440 SoC cpufreq driver for CPU frequency scaling.
Required properties:
- interrupts: Interrupt to know the completion of cpu frequency change.
- operating-points: Table of frequencies and voltage CPU could be transitioned into,
in the decreasing order. Frequency should be in KHz units and voltage
should be in microvolts.
Optional properties:
- clock-latency: Clock monitor latency in microsecond.
All the required listed above must be defined under node cpufreq.
Example:
--------
cpufreq@160000 {
compatible = "samsung,exynos5440-cpufreq";
reg = <0x160000 0x1000>;
interrupts = <0 57 0>;
operating-points = <
1000000 975000
800000 925000>;
clock-latency = <100000>;
};
...@@ -75,7 +75,6 @@ static const struct of_device_id ahci_of_match[] = { ...@@ -75,7 +75,6 @@ static const struct of_device_id ahci_of_match[] = {
{ .compatible = "generic-ahci", }, { .compatible = "generic-ahci", },
/* Keep the following compatibles for device tree compatibility */ /* Keep the following compatibles for device tree compatibility */
{ .compatible = "snps,spear-ahci", }, { .compatible = "snps,spear-ahci", },
{ .compatible = "snps,exynos5440-ahci", },
{ .compatible = "ibm,476gtr-ahci", }, { .compatible = "ibm,476gtr-ahci", },
{ .compatible = "snps,dwc-ahci", }, { .compatible = "snps,dwc-ahci", },
{ .compatible = "hisilicon,hisi-ahci", }, { .compatible = "hisilicon,hisi-ahci", },
......
...@@ -14,7 +14,6 @@ obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o ...@@ -14,7 +14,6 @@ obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5-subcmu.o obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5-subcmu.o
obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos5433.o obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos5433.o
obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o
obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-clkout.o obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-clkout.o
obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7.o obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7.o
......
/*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* Author: Thomas Abraham <thomas.ab@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Common Clock Framework support for Exynos5440 SoC.
*/
#include <dt-bindings/clock/exynos5440.h>
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include "clk.h"
#include "clk-pll.h"
#define CLKEN_OV_VAL 0xf8
#define CPU_CLK_STATUS 0xfc
#define MISC_DOUT1 0x558
static void __iomem *reg_base;
/* parent clock name list */
PNAME(mout_armclk_p) = { "cplla", "cpllb" };
PNAME(mout_spi_p) = { "div125", "div200" };
/* fixed rate clocks generated outside the soc */
static struct samsung_fixed_rate_clock exynos5440_fixed_rate_ext_clks[] __initdata = {
FRATE(0, "xtal", NULL, 0, 0),
};
/* fixed rate clocks */
static const struct samsung_fixed_rate_clock exynos5440_fixed_rate_clks[] __initconst = {
FRATE(0, "ppll", NULL, 0, 1000000000),
FRATE(0, "usb_phy0", NULL, 0, 60000000),
FRATE(0, "usb_phy1", NULL, 0, 60000000),
FRATE(0, "usb_ohci12", NULL, 0, 12000000),
FRATE(0, "usb_ohci48", NULL, 0, 48000000),
};
/* fixed factor clocks */
static const struct samsung_fixed_factor_clock exynos5440_fixed_factor_clks[] __initconst = {
FFACTOR(0, "div250", "ppll", 1, 4, 0),
FFACTOR(0, "div200", "ppll", 1, 5, 0),
FFACTOR(0, "div125", "div250", 1, 2, 0),
};
/* mux clocks */
static const struct samsung_mux_clock exynos5440_mux_clks[] __initconst = {
MUX(0, "mout_spi", mout_spi_p, MISC_DOUT1, 5, 1),
MUX(CLK_ARM_CLK, "arm_clk", mout_armclk_p, CPU_CLK_STATUS, 0, 1),
};
/* divider clocks */
static const struct samsung_div_clock exynos5440_div_clks[] __initconst = {
DIV(CLK_SPI_BAUD, "div_spi", "mout_spi", MISC_DOUT1, 3, 2),
};
/* gate clocks */
static const struct samsung_gate_clock exynos5440_gate_clks[] __initconst = {
GATE(CLK_PB0_250, "pb0_250", "div250", CLKEN_OV_VAL, 3, 0, 0),
GATE(CLK_PR0_250, "pr0_250", "div250", CLKEN_OV_VAL, 4, 0, 0),
GATE(CLK_PR1_250, "pr1_250", "div250", CLKEN_OV_VAL, 5, 0, 0),
GATE(CLK_B_250, "b_250", "div250", CLKEN_OV_VAL, 9, 0, 0),
GATE(CLK_B_125, "b_125", "div125", CLKEN_OV_VAL, 10, 0, 0),
GATE(CLK_B_200, "b_200", "div200", CLKEN_OV_VAL, 11, 0, 0),
GATE(CLK_SATA, "sata", "div200", CLKEN_OV_VAL, 12, 0, 0),
GATE(CLK_USB, "usb", "div200", CLKEN_OV_VAL, 13, 0, 0),
GATE(CLK_GMAC0, "gmac0", "div200", CLKEN_OV_VAL, 14, 0, 0),
GATE(CLK_CS250, "cs250", "div250", CLKEN_OV_VAL, 19, 0, 0),
GATE(CLK_PB0_250_O, "pb0_250_o", "pb0_250", CLKEN_OV_VAL, 3, 0, 0),
GATE(CLK_PR0_250_O, "pr0_250_o", "pr0_250", CLKEN_OV_VAL, 4, 0, 0),
GATE(CLK_PR1_250_O, "pr1_250_o", "pr1_250", CLKEN_OV_VAL, 5, 0, 0),
GATE(CLK_B_250_O, "b_250_o", "b_250", CLKEN_OV_VAL, 9, 0, 0),
GATE(CLK_B_125_O, "b_125_o", "b_125", CLKEN_OV_VAL, 10, 0, 0),
GATE(CLK_B_200_O, "b_200_o", "b_200", CLKEN_OV_VAL, 11, 0, 0),
GATE(CLK_SATA_O, "sata_o", "sata", CLKEN_OV_VAL, 12, 0, 0),
GATE(CLK_USB_O, "usb_o", "usb", CLKEN_OV_VAL, 13, 0, 0),
GATE(CLK_GMAC0_O, "gmac0_o", "gmac", CLKEN_OV_VAL, 14, 0, 0),
GATE(CLK_CS250_O, "cs250_o", "cs250", CLKEN_OV_VAL, 19, 0, 0),
};
static const struct of_device_id ext_clk_match[] __initconst = {
{ .compatible = "samsung,clock-xtal", .data = (void *)0, },
{},
};
static int exynos5440_clk_restart_notify(struct notifier_block *this,
unsigned long code, void *unused)
{
u32 val, status;
status = readl_relaxed(reg_base + 0xbc);
val = readl_relaxed(reg_base + 0xcc);
val = (val & 0xffff0000) | (status & 0xffff);
writel_relaxed(val, reg_base + 0xcc);
return NOTIFY_DONE;
}
/*
* Exynos5440 Clock restart notifier, handles restart functionality
*/
static struct notifier_block exynos5440_clk_restart_handler = {
.notifier_call = exynos5440_clk_restart_notify,
.priority = 128,
};
static const struct samsung_pll_clock exynos5440_plls[] __initconst = {
PLL(pll_2550x, CLK_CPLLA, "cplla", "xtal", 0, 0x4c, NULL),
PLL(pll_2550x, CLK_CPLLB, "cpllb", "xtal", 0, 0x50, NULL),
};
/*
* Clock aliases for legacy clkdev look-up.
*/
static const struct samsung_clock_alias exynos5440_aliases[] __initconst = {
ALIAS(CLK_ARM_CLK, NULL, "armclk"),
};
/* register exynos5440 clocks */
static void __init exynos5440_clk_init(struct device_node *np)
{
struct samsung_clk_provider *ctx;
reg_base = of_iomap(np, 0);
if (!reg_base) {
pr_err("%s: failed to map clock controller registers,"
" aborting clock initialization\n", __func__);
return;
}
ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
samsung_clk_of_register_fixed_ext(ctx, exynos5440_fixed_rate_ext_clks,
ARRAY_SIZE(exynos5440_fixed_rate_ext_clks), ext_clk_match);
samsung_clk_register_pll(ctx, exynos5440_plls,
ARRAY_SIZE(exynos5440_plls), ctx->reg_base);
samsung_clk_register_fixed_rate(ctx, exynos5440_fixed_rate_clks,
ARRAY_SIZE(exynos5440_fixed_rate_clks));
samsung_clk_register_fixed_factor(ctx, exynos5440_fixed_factor_clks,
ARRAY_SIZE(exynos5440_fixed_factor_clks));
samsung_clk_register_mux(ctx, exynos5440_mux_clks,
ARRAY_SIZE(exynos5440_mux_clks));
samsung_clk_register_div(ctx, exynos5440_div_clks,
ARRAY_SIZE(exynos5440_div_clks));
samsung_clk_register_gate(ctx, exynos5440_gate_clks,
ARRAY_SIZE(exynos5440_gate_clks));
samsung_clk_register_alias(ctx, exynos5440_aliases,
ARRAY_SIZE(exynos5440_aliases));
samsung_clk_of_add_provider(np, ctx);
if (register_restart_handler(&exynos5440_clk_restart_handler))
pr_warn("exynos5440 clock can't register restart handler\n");
pr_info("Exynos5440: arm_clk = %ldHz\n", _get_rate("arm_clk"));
pr_info("exynos5440 clock initialization complete\n");
}
CLK_OF_DECLARE(exynos5440_clk, "samsung,exynos5440-clock", exynos5440_clk_init);
...@@ -71,20 +71,6 @@ config ARM_BRCMSTB_AVS_CPUFREQ ...@@ -71,20 +71,6 @@ config ARM_BRCMSTB_AVS_CPUFREQ
Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS. Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
config ARM_EXYNOS5440_CPUFREQ
tristate "SAMSUNG EXYNOS5440"
depends on SOC_EXYNOS5440
depends on HAVE_CLK && OF
select PM_OPP
default y
help
This adds the CPUFreq driver for Samsung EXYNOS5440
SoC. The nature of exynos5440 clock controller is
different than previous exynos controllers so not using
the common exynos framework.
If in doubt, say N.
config ARM_HIGHBANK_CPUFREQ config ARM_HIGHBANK_CPUFREQ
tristate "Calxeda Highbank-based" tristate "Calxeda Highbank-based"
depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
......
...@@ -56,7 +56,6 @@ obj-$(CONFIG_ARM_ARMADA_37XX_CPUFREQ) += armada-37xx-cpufreq.o ...@@ -56,7 +56,6 @@ obj-$(CONFIG_ARM_ARMADA_37XX_CPUFREQ) += armada-37xx-cpufreq.o
obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ) += brcmstb-avs-cpufreq.o obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ) += brcmstb-avs-cpufreq.o
obj-$(CONFIG_ACPI_CPPC_CPUFREQ) += cppc_cpufreq.o obj-$(CONFIG_ACPI_CPPC_CPUFREQ) += cppc_cpufreq.o
obj-$(CONFIG_ARCH_DAVINCI) += davinci-cpufreq.o obj-$(CONFIG_ARCH_DAVINCI) += davinci-cpufreq.o
obj-$(CONFIG_ARM_EXYNOS5440_CPUFREQ) += exynos5440-cpufreq.o
obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ) += highbank-cpufreq.o obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ) += highbank-cpufreq.o
obj-$(CONFIG_ARM_IMX6Q_CPUFREQ) += imx6q-cpufreq.o obj-$(CONFIG_ARM_IMX6Q_CPUFREQ) += imx6q-cpufreq.o
obj-$(CONFIG_ARM_KIRKWOOD_CPUFREQ) += kirkwood-cpufreq.o obj-$(CONFIG_ARM_KIRKWOOD_CPUFREQ) += kirkwood-cpufreq.o
......
This diff is collapsed.
...@@ -161,16 +161,10 @@ static int exynos_ehci_probe(struct platform_device *pdev) ...@@ -161,16 +161,10 @@ static int exynos_ehci_probe(struct platform_device *pdev)
} }
exynos_ehci = to_exynos_ehci(hcd); exynos_ehci = to_exynos_ehci(hcd);
if (of_device_is_compatible(pdev->dev.of_node,
"samsung,exynos5440-ehci"))
goto skip_phy;
err = exynos_ehci_get_phy(&pdev->dev, exynos_ehci); err = exynos_ehci_get_phy(&pdev->dev, exynos_ehci);
if (err) if (err)
goto fail_clk; goto fail_clk;
skip_phy:
exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost"); exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
if (IS_ERR(exynos_ehci->clk)) { if (IS_ERR(exynos_ehci->clk)) {
...@@ -304,7 +298,6 @@ static const struct dev_pm_ops exynos_ehci_pm_ops = { ...@@ -304,7 +298,6 @@ static const struct dev_pm_ops exynos_ehci_pm_ops = {
#ifdef CONFIG_OF #ifdef CONFIG_OF
static const struct of_device_id exynos_ehci_match[] = { static const struct of_device_id exynos_ehci_match[] = {
{ .compatible = "samsung,exynos4210-ehci" }, { .compatible = "samsung,exynos4210-ehci" },
{ .compatible = "samsung,exynos5440-ehci" },
{}, {},
}; };
MODULE_DEVICE_TABLE(of, exynos_ehci_match); MODULE_DEVICE_TABLE(of, exynos_ehci_match);
......
...@@ -130,15 +130,10 @@ static int exynos_ohci_probe(struct platform_device *pdev) ...@@ -130,15 +130,10 @@ static int exynos_ohci_probe(struct platform_device *pdev)
exynos_ohci = to_exynos_ohci(hcd); exynos_ohci = to_exynos_ohci(hcd);
if (of_device_is_compatible(pdev->dev.of_node,
"samsung,exynos5440-ohci"))
goto skip_phy;
err = exynos_ohci_get_phy(&pdev->dev, exynos_ohci); err = exynos_ohci_get_phy(&pdev->dev, exynos_ohci);
if (err) if (err)
goto fail_clk; goto fail_clk;
skip_phy:
exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost"); exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost");
if (IS_ERR(exynos_ohci->clk)) { if (IS_ERR(exynos_ohci->clk)) {
...@@ -270,7 +265,6 @@ static const struct dev_pm_ops exynos_ohci_pm_ops = { ...@@ -270,7 +265,6 @@ static const struct dev_pm_ops exynos_ohci_pm_ops = {
#ifdef CONFIG_OF #ifdef CONFIG_OF
static const struct of_device_id exynos_ohci_match[] = { static const struct of_device_id exynos_ohci_match[] = {
{ .compatible = "samsung,exynos4210-ohci" }, { .compatible = "samsung,exynos4210-ohci" },
{ .compatible = "samsung,exynos5440-ohci" },
{}, {},
}; };
MODULE_DEVICE_TABLE(of, exynos_ohci_match); MODULE_DEVICE_TABLE(of, exynos_ohci_match);
......
/*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* Author: Andrzej Hajda <a.hajda@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Device Tree binding constants for Exynos5440 clock controller.
*/
#ifndef _DT_BINDINGS_CLOCK_EXYNOS_5440_H
#define _DT_BINDINGS_CLOCK_EXYNOS_5440_H
#define CLK_XTAL 1
#define CLK_ARM_CLK 2
#define CLK_CPLLA 3
#define CLK_CPLLB 4
#define CLK_SPI_BAUD 16
#define CLK_PB0_250 17
#define CLK_PR0_250 18
#define CLK_PR1_250 19
#define CLK_B_250 20
#define CLK_B_125 21
#define CLK_B_200 22
#define CLK_SATA 23
#define CLK_USB 24
#define CLK_GMAC0 25
#define CLK_CS250 26
#define CLK_PB0_250_O 27
#define CLK_PR0_250_O 28
#define CLK_PR1_250_O 29
#define CLK_B_250_O 30
#define CLK_B_125_O 31
#define CLK_B_200_O 32
#define CLK_SATA_O 33
#define CLK_USB_O 34
#define CLK_GMAC0_O 35
#define CLK_CS250_O 36
/* must be greater than maximal clock id */
#define CLK_NR_CLKS 37
#endif /* _DT_BINDINGS_CLOCK_EXYNOS_5440_H */
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