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x86: Add sp5100_tco AMD patches

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This adds the following patches to the x86 target:

sp5100_tco: Add AMD Mullins platform support
sp5100_tco: Add AMD Carrizo platform support
sp5100_tco: fix the device check for SB800 and later chipsets
watchdog: sp5100_tco: properly check for new register layouts

With these added, the sp5100_tco driver can then be used on newer AMD
platforms, such as the PCEngines APU2/APU3 boards.

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
This commit is contained in:
Chris Blake
2017-01-14 10:20:24 -06:00
committed by Felix Fietkau
parent 371b382a40
commit 4fab08183b
4 changed files with 217 additions and 0 deletions
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30
target/linux/x86/patches-4.4/097-0001-sp5100_tco-Add-AMD-Mullins-platform-support.patch Normal file
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@@ -0,0 +1,30 @@
From 190aa4304de6fe2185d96392ddf56580fa133e99 Mon Sep 17 00:00:00 2001
From: Denis Turischev <denis.turischev@compulab.co.il>
Date: Tue, 24 Nov 2015 10:46:12 +0200
Subject: [PATCH] sp5100_tco: Add AMD Mullins platform support
AMD Mullins watchdog is fully compatible to the previous Hudson chipset,
reuse the existent sp5100_tco driver.
Signed-off-by: Denis Turischev <denis.turischev@compulab.co.il>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
drivers/watchdog/sp5100_tco.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index eb8044e..ef039f8 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -306,6 +306,8 @@ static struct miscdevice sp5100_tco_miscdev = {
static const struct pci_device_id sp5100_tco_pci_tbl[] = {
{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, PCI_ANY_ID,
PCI_ANY_ID, },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, PCI_ANY_ID,
+ PCI_ANY_ID, },
{ 0, }, /* End of list */
};
MODULE_DEVICE_TABLE(pci, sp5100_tco_pci_tbl);
--
2.7.4

31
target/linux/x86/patches-4.4/097-0002-sp5100_tco-Add-AMD-Carrizo-platform-support.patch Normal file
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@@ -0,0 +1,31 @@
From cca118fa2a0a94e0f0b3c8dd1dda922cdee45089 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Mon, 23 Nov 2015 18:07:36 +0800
Subject: [PATCH] sp5100_tco: Add AMD Carrizo platform support
sp5100_tco watchdog is also supported on AMD KernCZ chipset of Carrizo
platform.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Denis Turischev <denis.turischev@compulab.co.il>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
drivers/watchdog/sp5100_tco.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index ef039f8..0ccadb4 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -308,6 +308,8 @@ static const struct pci_device_id sp5100_tco_pci_tbl[] = {
PCI_ANY_ID, },
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, PCI_ANY_ID,
PCI_ANY_ID, },
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, PCI_ANY_ID,
+ PCI_ANY_ID, },
{ 0, }, /* End of list */
};
MODULE_DEVICE_TABLE(pci, sp5100_tco_pci_tbl);
--
2.7.4

80
target/linux/x86/patches-4.4/097-0003-sp5100_tco-fix-the-device-check-for-SB800-and-later-chipsets.patch Normal file
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@@ -0,0 +1,80 @@
From bdecfcdb5461834aab24002bb18d3cbdd907b7fb Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Mon, 23 Nov 2015 18:07:35 +0800
Subject: [PATCH] sp5100_tco: fix the device check for SB800 and later chipsets
For SB800 and later chipsets, the register definitions are the same
with SB800. And for SB700 and older chipsets, the definitions should
be same with SP5100/SB7x0.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Denis Turischev <denis.turischev@compulab.co.il>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
drivers/watchdog/sp5100_tco.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 0ccadb4..6467b91 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -335,21 +335,24 @@ static unsigned char sp5100_tco_setupdevice(void)
if (!sp5100_tco_pci)
return 0;
- pr_info("PCI Revision ID: 0x%x\n", sp5100_tco_pci->revision);
+ pr_info("PCI Vendor ID: 0x%x, Device ID: 0x%x, Revision ID: 0x%x\n",
+ sp5100_tco_pci->vendor, sp5100_tco_pci->device,
+ sp5100_tco_pci->revision);
/*
* Determine type of southbridge chipset.
*/
- if (sp5100_tco_pci->revision >= 0x40) {
- dev_name = SB800_DEVNAME;
- index_reg = SB800_IO_PM_INDEX_REG;
- data_reg = SB800_IO_PM_DATA_REG;
- base_addr = SB800_PM_WATCHDOG_BASE;
- } else {
+ if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
+ sp5100_tco_pci->revision < 0x40) {
dev_name = SP5100_DEVNAME;
index_reg = SP5100_IO_PM_INDEX_REG;
data_reg = SP5100_IO_PM_DATA_REG;
base_addr = SP5100_PM_WATCHDOG_BASE;
+ } else {
+ dev_name = SB800_DEVNAME;
+ index_reg = SB800_IO_PM_INDEX_REG;
+ data_reg = SB800_IO_PM_DATA_REG;
+ base_addr = SB800_PM_WATCHDOG_BASE;
}
/* Request the IO ports used by this driver */
@@ -385,7 +388,12 @@ static unsigned char sp5100_tco_setupdevice(void)
* Secondly, Find the watchdog timer MMIO address
* from SBResource_MMIO register.
*/
- if (sp5100_tco_pci->revision >= 0x40) {
+ if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
+ sp5100_tco_pci->revision < 0x40) {
+ /* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */
+ pci_read_config_dword(sp5100_tco_pci,
+ SP5100_SB_RESOURCE_MMIO_BASE, &val);
+ } else {
/* Read SBResource_MMIO from AcpiMmioEn(PM_Reg: 24h) */
outb(SB800_PM_ACPI_MMIO_EN+3, SB800_IO_PM_INDEX_REG);
val = inb(SB800_IO_PM_DATA_REG);
@@ -395,10 +403,6 @@ static unsigned char sp5100_tco_setupdevice(void)
val = val << 8 | inb(SB800_IO_PM_DATA_REG);
outb(SB800_PM_ACPI_MMIO_EN+0, SB800_IO_PM_INDEX_REG);
val = val << 8 | inb(SB800_IO_PM_DATA_REG);
- } else {
- /* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */
- pci_read_config_dword(sp5100_tco_pci,
- SP5100_SB_RESOURCE_MMIO_BASE, &val);
}
/* The SBResource_MMIO is enabled and mapped memory space? */
--
2.7.4

76
target/linux/x86/patches-4.4/097-0004-watchdog-sp5100_tco-properly-check-for-new-register-.patch Normal file
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@@ -0,0 +1,76 @@
From 46856fabe40cc80f92134683cdec7dc0fc8f4000 Mon Sep 17 00:00:00 2001
From: Lucas Stach <dev@lynxeye.de>
Date: Tue, 3 May 2016 19:15:58 +0200
Subject: [PATCH] watchdog: sp5100_tco: properly check for new register layouts
Commits 190aa4304de6 (Add AMD Mullins platform support) and
cca118fa2a0a94 (Add AMD Carrizo platform support) enabled the
driver on a lot more devices, but the following commit missed
a single location in the code when checking if the SB800 register
offsets should be used. This leads to the wrong register being
written which in turn causes ACPI to go haywire.
Fix this by introducing a helper function to check for the new
register layout and use this consistently.
https://bugzilla.kernel.org/show_bug.cgi?id=114201
https://bugzilla.redhat.com/show_bug.cgi?id=1329910
Fixes: bdecfcdb5461 (sp5100_tco: fix the device check for SB800
and later chipsets)
Cc: stable@vger.kernel.org (4.5+)
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
drivers/watchdog/sp5100_tco.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 6467b91..028618c 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -73,6 +73,13 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started."
/*
* Some TCO specific functions
*/
+
+static bool tco_has_sp5100_reg_layout(struct pci_dev *dev)
+{
+ return dev->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
+ dev->revision < 0x40;
+}
+
static void tco_timer_start(void)
{
u32 val;
@@ -129,7 +136,7 @@ static void tco_timer_enable(void)
{
int val;
- if (sp5100_tco_pci->revision >= 0x40) {
+ if (!tco_has_sp5100_reg_layout(sp5100_tco_pci)) {
/* For SB800 or later */
/* Set the Watchdog timer resolution to 1 sec */
outb(SB800_PM_WATCHDOG_CONFIG, SB800_IO_PM_INDEX_REG);
@@ -342,8 +349,7 @@ static unsigned char sp5100_tco_setupdevice(void)
/*
* Determine type of southbridge chipset.
*/
- if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
- sp5100_tco_pci->revision < 0x40) {
+ if (tco_has_sp5100_reg_layout(sp5100_tco_pci)) {
dev_name = SP5100_DEVNAME;
index_reg = SP5100_IO_PM_INDEX_REG;
data_reg = SP5100_IO_PM_DATA_REG;
@@ -388,8 +394,7 @@ static unsigned char sp5100_tco_setupdevice(void)
* Secondly, Find the watchdog timer MMIO address
* from SBResource_MMIO register.
*/
- if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
- sp5100_tco_pci->revision < 0x40) {
+ if (tco_has_sp5100_reg_layout(sp5100_tco_pci)) {
/* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */
pci_read_config_dword(sp5100_tco_pci,
SP5100_SB_RESOURCE_MMIO_BASE, &val);
--
2.7.4