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Commit c3bd15a0 authored by Olof Johansson's avatar Olof Johansson
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Merge tag 'omap-for-v5.3/ti-sysc-signed' of... 

Merge tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers

ti-sysc interconnect target module driver changes for v5.3

This series of changes improves probing devices with ti-sysc to the
point where we can now probe most devices without the custom dts
property "ti,hwmods" and no legacy platform data :)

We add support for platform data callbacks for idling and unidling the
clockdomain the module belongs to. The rest of the series mostly adds
handling for the various quirks needed by old legacy modules such as
i2c and watchdog. Some quirk handling is still missing for few modules,
but those will be added as they get tested.

The related platform data and dts changes will be sent separately.

* tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Add support for module specific reset quirks
  bus: ti-sysc: Detect uarts also on omap34xx
  bus: ti-sysc: Do rstctrl reset handling in two phases
  bus: ti-sysc: Add support for disabling module without legacy mode
  bus: ti-sysc: Set ENAWAKEUP if available
  bus: ti-sysc: Handle swsup idle mode quirks
  bus: ti-sysc: Handle clockactivity for enable and disable
  bus: ti-sysc: Enable interconnect target module autoidle bit on enable
  bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set
  bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits
  bus: ti-sysc: Support 16-bit writes too
  bus: ti-sysc: Add support for missing clockdomain handling
  ARM: dts: dra71x: Disable usb4_tm target module
  ARM: dts: dra71x: Disable rtc target module
  ARM: dts: dra76x: Disable usb4_tm target module
  ARM: dts: dra76x: Disable rtc target module
  ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
  ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
  bus: ti-sysc: Handle devices with no control registers
  ARM: dts: Configure osc clock for d_can on am335x
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents 42635639 4e23be47
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Showing with 520 additions and 154 deletions
arch/arm/boot/dts/am33xx-l4.dtsi
View file @ c3bd15a0
......@@ -1759,11 +1759,10 @@ target-module@b0000 { /* 0x481b0000, ap 58 50.0 */
target-module@cc000 { /* 0x481cc000, ap 60 46.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can0";
reg = <0xcc000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>;
clock-names = "fck";
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>,
<&dcan0_fck>;
clock-names = "fck", "osc";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0xcc000 0x2000>;
......@@ -1782,11 +1781,10 @@ dcan0: can@0 {
target-module@d0000 { /* 0x481d0000, ap 62 42.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can1";
reg = <0xd0000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>;
clock-names = "fck";
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>,
<&dcan1_fck>;
clock-names = "fck", "osc";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0xd0000 0x2000>;
......
arch/arm/boot/dts/am437x-l4.dtsi
View file @ c3bd15a0
......@@ -1575,8 +1575,6 @@ timer8: timer@0 {
target-module@cc000 { /* 0x481cc000, ap 50 46.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can0";
reg = <0xcc000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM4_L4LS_D_CAN0_CLKCTRL 0>;
clock-names = "fck";
......@@ -1596,8 +1594,6 @@ dcan0: can@0 {
target-module@d0000 { /* 0x481d0000, ap 52 3a.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can1";
reg = <0xd0000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM4_L4LS_D_CAN1_CLKCTRL 0>;
clock-names = "fck";
......
arch/arm/boot/dts/am57xx-idk-common.dtsi
View file @ c3bd15a0
......@@ -420,6 +420,7 @@ &mmc1 {
vqmmc-supply = <&ldo1_reg>;
bus-width = <4>;
cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
no-1-8-v;
};
&mmc2 {
......
arch/arm/boot/dts/dra7-l4.dtsi
View file @ c3bd15a0
......@@ -3543,7 +3543,7 @@ timer16: timer@0 {
};
};
target-module@38000 { /* 0x48838000, ap 29 12.0 */
rtctarget: target-module@38000 { /* 0x48838000, ap 29 12.0 */
compatible = "ti,sysc-omap4-simple", "ti,sysc";
ti,hwmods = "rtcss";
reg = <0x38074 0x4>,
......
arch/arm/boot/dts/dra71-evm.dts
View file @ c3bd15a0
......@@ -6,7 +6,7 @@
* published by the Free Software Foundation.
*/
#include "dra72-evm-common.dtsi"
#include "dra71x.dtsi"
#include "dra7-mmc-iodelay.dtsi"
#include "dra72x-mmc-iodelay.dtsi"
#include <dt-bindings/net/ti-dp83867.h>
......
arch/arm/boot/dts/dra71x.dtsi 0 → 100644
View file @ c3bd15a0
/*
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.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.
*/
#include "dra72-evm-common.dtsi"
&rtctarget {
status = "disabled";
};
&usb4_tm {
status = "disabled";
};
arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi
View file @ c3bd15a0
......@@ -22,7 +22,7 @@
*
* Datamanual Revisions:
*
* DRA76x Silicon Revision 1.0: SPRS993A, Revised July 2017
* DRA76x Silicon Revision 1.0: SPRS993E, Revised December 2018
*
*/
......@@ -169,25 +169,25 @@ mmc1_iodelay_sdr104_conf: mmc1_iodelay_sdr104_conf {
/* Corresponds to MMC2_HS200_MANUAL1 in datamanual */
mmc2_iodelay_hs200_conf: mmc2_iodelay_hs200_conf {
pinctrl-pin-array = <
0x190 A_DELAY_PS(384) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
0x194 A_DELAY_PS(0) G_DELAY_PS(174) /* CFG_GPMC_A19_OUT */
0x1a8 A_DELAY_PS(410) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
0x1ac A_DELAY_PS(85) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
0x1b4 A_DELAY_PS(468) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
0x1b8 A_DELAY_PS(139) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
0x1c0 A_DELAY_PS(676) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
0x1c4 A_DELAY_PS(69) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154) /* CFG_GPMC_A23_OUT */
0x1d8 A_DELAY_PS(640) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
0x1e4 A_DELAY_PS(356) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
0x1e8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
0x1f0 A_DELAY_PS(579) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
0x1f4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
0x1fc A_DELAY_PS(435) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
0x200 A_DELAY_PS(36) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
0x364 A_DELAY_PS(759) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
0x368 A_DELAY_PS(72) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
0x190 A_DELAY_PS(384) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
0x194 A_DELAY_PS(350) G_DELAY_PS(174) /* CFG_GPMC_A19_OUT */
0x1a8 A_DELAY_PS(410) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
0x1ac A_DELAY_PS(335) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
0x1b4 A_DELAY_PS(468) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
0x1b8 A_DELAY_PS(339) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
0x1c0 A_DELAY_PS(676) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
0x1c4 A_DELAY_PS(219) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154) /* CFG_GPMC_A23_OUT */
0x1d8 A_DELAY_PS(640) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
0x1dc A_DELAY_PS(150) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
0x1e4 A_DELAY_PS(356) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
0x1e8 A_DELAY_PS(150) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
0x1f0 A_DELAY_PS(579) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
0x1f4 A_DELAY_PS(200) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
0x1fc A_DELAY_PS(435) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
0x200 A_DELAY_PS(236) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
0x364 A_DELAY_PS(759) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
0x368 A_DELAY_PS(372) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
>;
};
......
arch/arm/boot/dts/dra76x.dtsi
View file @ c3bd15a0
......@@ -81,3 +81,11 @@ mcan_clk: mcan_clk@3fc {
reg = <0x3fc>;
};
};
&rtctarget {
status = "disabled";
};
&usb4_tm {
status = "disabled";
};
arch/arm/mach-omap2/omap_hwmod.c
View file @ c3bd15a0
......@@ -3445,6 +3445,7 @@ static int omap_hwmod_check_module(struct device *dev,
* @dev: struct device
* @oh: module
* @sysc_fields: sysc register bits
* @clockdomain: clockdomain
* @rev_offs: revision register offset
* @sysc_offs: sysconfig register offset
* @syss_offs: sysstatus register offset
......@@ -3456,6 +3457,7 @@ static int omap_hwmod_check_module(struct device *dev,
static int omap_hwmod_allocate_module(struct device *dev, struct omap_hwmod *oh,
const struct ti_sysc_module_data *data,
struct sysc_regbits *sysc_fields,
struct clockdomain *clkdm,
s32 rev_offs, s32 sysc_offs,
s32 syss_offs, u32 sysc_flags,
u32 idlemodes)
......@@ -3463,8 +3465,6 @@ static int omap_hwmod_allocate_module(struct device *dev, struct omap_hwmod *oh,
struct omap_hwmod_class_sysconfig *sysc;
struct omap_hwmod_class *class = NULL;
struct omap_hwmod_ocp_if *oi = NULL;
struct clockdomain *clkdm = NULL;
struct clk *clk = NULL;
void __iomem *regs = NULL;
unsigned long flags;
......@@ -3511,36 +3511,6 @@ static int omap_hwmod_allocate_module(struct device *dev, struct omap_hwmod *oh,
oi->user = OCP_USER_MPU | OCP_USER_SDMA;
}
if (!oh->_clk) {
struct clk_hw_omap *hwclk;
clk = of_clk_get_by_name(dev->of_node, "fck");
if (!IS_ERR(clk))
clk_prepare(clk);
else
clk = NULL;
/*
* Populate clockdomain based on dts clock. It is needed for
* clkdm_deny_idle() and clkdm_allow_idle() until we have have
* interconnect driver and reset driver capable of blocking
* clockdomain idle during reset, enable and idle.
*/
if (clk) {
hwclk = to_clk_hw_omap(__clk_get_hw(clk));
if (hwclk && hwclk->clkdm_name)
clkdm = clkdm_lookup(hwclk->clkdm_name);
}
/*
* Note that we assume interconnect driver manages the clocks
* and do not need to populate oh->_clk for dynamically
* allocated modules.
*/
clk_unprepare(clk);
clk_put(clk);
}
spin_lock_irqsave(&oh->_lock, flags);
if (regs)
oh->_mpu_rt_va = regs;
......@@ -3626,7 +3596,7 @@ int omap_hwmod_init_module(struct device *dev,
u32 sysc_flags, idlemodes;
int error;
if (!dev || !data)
if (!dev || !data || !data->name || !cookie)
return -EINVAL;
oh = _lookup(data->name);
......@@ -3697,7 +3667,8 @@ int omap_hwmod_init_module(struct device *dev,
return error;
return omap_hwmod_allocate_module(dev, oh, data, sysc_fields,
rev_offs, sysc_offs, syss_offs,
cookie->clkdm, rev_offs,
sysc_offs, syss_offs,
sysc_flags, idlemodes);
}
......
arch/arm/mach-omap2/pdata-quirks.c
View file @ c3bd15a0
......@@ -29,6 +29,7 @@
#include <linux/platform_data/wkup_m3.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
#include "clockdomain.h"
#include "common.h"
#include "common-board-devices.h"
#include "control.h"
......@@ -463,6 +464,62 @@ static void __init dra7x_evm_mmc_quirk(void)
}
#endif
static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk)
{
struct clockdomain *clkdm = NULL;
struct clk_hw_omap *hwclk;
hwclk = to_clk_hw_omap(__clk_get_hw(clk));
if (hwclk && hwclk->clkdm_name)
clkdm = clkdm_lookup(hwclk->clkdm_name);
return clkdm;
}
/**
* ti_sysc_clkdm_init - find clockdomain based on clock
* @fck: device functional clock
* @ick: device interface clock
* @dev: struct device
*
* Populate clockdomain based on clock. It is needed for
* clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain
* clockdomain idle during reset, enable and idle.
*
* Note that we assume interconnect driver manages the clocks
* and do not need to populate oh->_clk for dynamically
* allocated modules.
*/
static int ti_sysc_clkdm_init(struct device *dev,
struct clk *fck, struct clk *ick,
struct ti_sysc_cookie *cookie)
{
if (fck)
cookie->clkdm = ti_sysc_find_one_clockdomain(fck);
if (cookie->clkdm)
return 0;
if (ick)
cookie->clkdm = ti_sysc_find_one_clockdomain(ick);
if (cookie->clkdm)
return 0;
return -ENODEV;
}
static void ti_sysc_clkdm_deny_idle(struct device *dev,
const struct ti_sysc_cookie *cookie)
{
if (cookie->clkdm)
clkdm_deny_idle(cookie->clkdm);
}
static void ti_sysc_clkdm_allow_idle(struct device *dev,
const struct ti_sysc_cookie *cookie)
{
if (cookie->clkdm)
clkdm_allow_idle(cookie->clkdm);
}
static int ti_sysc_enable_module(struct device *dev,
const struct ti_sysc_cookie *cookie)
{
......@@ -494,6 +551,9 @@ static struct of_dev_auxdata omap_auxdata_lookup[];
static struct ti_sysc_platform_data ti_sysc_pdata = {
.auxdata = omap_auxdata_lookup,
.init_clockdomain = ti_sysc_clkdm_init,
.clkdm_deny_idle = ti_sysc_clkdm_deny_idle,
.clkdm_allow_idle = ti_sysc_clkdm_allow_idle,
.init_module = omap_hwmod_init_module,
.enable_module = ti_sysc_enable_module,
.idle_module = ti_sysc_idle_module,
......
drivers/bus/ti-sysc.c
View file @ c3bd15a0
This diff is collapsed.
include/linux/platform_data/ti-sysc.h
View file @ c3bd15a0
......@@ -19,6 +19,7 @@ enum ti_sysc_module_type {
struct ti_sysc_cookie {
void *data;
void *clkdm;
};
/**
......@@ -46,6 +47,10 @@ struct sysc_regbits {
s8 emufree_shift;
};
#define SYSC_MODULE_QUIRK_HDQ1W BIT(17)
#define SYSC_MODULE_QUIRK_I2C BIT(16)
#define SYSC_MODULE_QUIRK_WDT BIT(15)
#define SYSS_QUIRK_RESETDONE_INVERTED BIT(14)
#define SYSC_QUIRK_SWSUP_MSTANDBY BIT(13)
#define SYSC_QUIRK_SWSUP_SIDLE_ACT BIT(12)
#define SYSC_QUIRK_SWSUP_SIDLE BIT(11)
......@@ -125,9 +130,16 @@ struct ti_sysc_module_data {
};
struct device;
struct clk;
struct ti_sysc_platform_data {
struct of_dev_auxdata *auxdata;
int (*init_clockdomain)(struct device *dev, struct clk *fck,
struct clk *ick, struct ti_sysc_cookie *cookie);
void (*clkdm_deny_idle)(struct device *dev,
const struct ti_sysc_cookie *cookie);
void (*clkdm_allow_idle)(struct device *dev,
const struct ti_sysc_cookie *cookie);
int (*init_module)(struct device *dev,
const struct ti_sysc_module_data *data,
struct ti_sysc_cookie *cookie);
......
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