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Fixes for omap variants for dra7 mmc voltage and boot issues

Browse Source 
This series contains dra7 mmc voltage fixes, and fixes to the recent
 changes to probe devices with device tree data insteas of legacy
 platform data:
 
 - Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
   reset, the bootrom will try to access the mmc card at 3.3V potentially
   damaging the card
 
 - Two regression fixes for am335x d_can. We must allow devices with no
   control registers for ti-sysc interconnect target module driver for
   at least d_can, and we remove the incorrect control registers for
   d_can. And we must configure the osc clock for d_can as otherwise
   register access may fail depending on the bootloader version
 
 - Four regression fixes for dra7 variant dts files to tag rtc and usb4
   as disabled for dra71x and dra76x. These SoC variants do not have
   these devices, and got accidentally enabled when the L4 interconnect
   got defined in the dra7-l4.dtsi for the dra7 SoC family
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Merge tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omap variants for dra7 mmc voltage and boot issues

This series contains dra7 mmc voltage fixes, and fixes to the recent
changes to probe devices with device tree data insteas of legacy
platform data:

- Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
  reset, the bootrom will try to access the mmc card at 3.3V potentially
  damaging the card

- Two regression fixes for am335x d_can. We must allow devices with no
  control registers for ti-sysc interconnect target module driver for
  at least d_can, and we remove the incorrect control registers for
  d_can. And we must configure the osc clock for d_can as otherwise
  register access may fail depending on the bootloader version

- Four regression fixes for dra7 variant dts files to tag rtc and usb4
  as disabled for dra71x and dra76x. These SoC variants do not have
  these devices, and got accidentally enabled when the L4 interconnect
  got defined in the dra7-l4.dtsi for the dra7 SoC family

* tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  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: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2019-06-16 13:27:36 -07:00
commit 6515a2ceac
9 changed files with 65 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/arm/boot/dts/am33xx-l4.dtsi
View File

@ -1759,11 +1759,10 @@
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 @@
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>;

4
arch/arm/boot/dts/am437x-l4.dtsi
View File

@ -1575,8 +1575,6 @@
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 @@
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";

1
arch/arm/boot/dts/am57xx-idk-common.dtsi
View File

@ -420,6 +420,7 @@
vqmmc-supply = <&ldo1_reg>;
bus-width = <4>;
cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
no-1-8-v;
};
&mmc2 {

2
arch/arm/boot/dts/dra7-l4.dtsi
View File

@ -3543,7 +3543,7 @@
};
};
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>,

2
arch/arm/boot/dts/dra71-evm.dts
View File

@ -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>

17
arch/arm/boot/dts/dra71x.dtsi Normal file
View File

@ -0,0 +1,17 @@
/*
* 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";
};

40
arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi
View File

@ -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 @@
/* 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 */
>;
};

8
arch/arm/boot/dts/dra76x.dtsi
View File

@ -81,3 +81,11 @@
reg = <0x3fc>;
};
};
&rtctarget {
status = "disabled";
};
&usb4_tm {
status = "disabled";
};

23
drivers/bus/ti-sysc.c
View File

@ -660,12 +660,6 @@ static int sysc_check_registers(struct sysc *ddata)
nr_regs++;
}
if (nr_regs < 1) {
dev_err(ddata->dev, "missing registers\n");
return -EINVAL;
}
if (nr_matches > nr_regs) {
dev_err(ddata->dev, "overlapping registers: (%i/%i)",
nr_regs, nr_matches);
@ -691,12 +685,18 @@ static int sysc_ioremap(struct sysc *ddata)
{
int size;
size = max3(ddata->offsets[SYSC_REVISION],
ddata->offsets[SYSC_SYSCONFIG],
ddata->offsets[SYSC_SYSSTATUS]);
if (ddata->offsets[SYSC_REVISION] < 0 &&
ddata->offsets[SYSC_SYSCONFIG] < 0 &&
ddata->offsets[SYSC_SYSSTATUS] < 0) {
size = ddata->module_size;
} else {
size = max3(ddata->offsets[SYSC_REVISION],
ddata->offsets[SYSC_SYSCONFIG],
ddata->offsets[SYSC_SYSSTATUS]);
if (size < 0 || (size + sizeof(u32)) > ddata->module_size)
return -EINVAL;
if ((size + sizeof(u32)) > ddata->module_size)
return -EINVAL;
}
ddata->module_va = devm_ioremap(ddata->dev,
ddata->module_pa,
@ -1128,7 +1128,6 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_QUIRK("cpgmac", 0, 0x1200, 0x1208, 0x1204, 0x4edb1902,
0xffff00f0, 0),
SYSC_QUIRK("dcan", 0, 0, -1, -1, 0xffffffff, 0xffffffff, 0),
SYSC_QUIRK("dcan", 0, 0, -1, -1, 0x00001401, 0xffffffff, 0),
SYSC_QUIRK("dmic", 0, 0, 0x10, -1, 0x50010000, 0xffffffff, 0),
SYSC_QUIRK("dwc3", 0, 0, 0x10, -1, 0x500a0200, 0xffffffff, 0),
SYSC_QUIRK("epwmss", 0, 0, 0x4, -1, 0x47400001, 0xffffffff, 0),