[PATCH 1/3] pci_ids: Add AMD KERNCZ device ID support

[PATCH 1/3] pci_ids: Add AMD KERNCZ device ID support

[Wan ZongShun]

The KERNCZ is new AMD SB/FCH generation name, like HUDSON2.
We will adopt 0x790b as device ID since from this gereration.

Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com>
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
---
 include/linux/pci_ids.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 2f7b9a4..cb63a7b 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -579,6 +579,7 @@
 #define PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE	0x7800
 #define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS		0x780b
 #define PCI_DEVICE_ID_AMD_HUDSON2_IDE		0x780c
+#define PCI_DEVICE_ID_AMD_KERNCZ_SMBUS  0x790b
 
 #define PCI_VENDOR_ID_TRIDENT		0x1023
 #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX	0x2000
-- 
1.9.1

[PATCH 2/3] i2c-piix4: Use Macro for AMD CZ SMBus device ID

[Wan ZongShun]

Change AMD CZ SMBUS device ID from 0x790b to
use Macro definition

Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com>
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
---
 drivers/i2c/busses/i2c-piix4.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 67cbec6..630bce6 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -245,7 +245,7 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
 	     PIIX4_dev->device == PCI_DEVICE_ID_AMD_HUDSON2_SMBUS &&
 	     PIIX4_dev->revision >= 0x41) ||
 	    (PIIX4_dev->vendor == PCI_VENDOR_ID_AMD &&
-	     PIIX4_dev->device == 0x790b &&
+	     PIIX4_dev->device == PCI_DEVICE_ID_AMD_KERNCZ_SMBUS &&
 	     PIIX4_dev->revision >= 0x49))
 		smb_en = 0x00;
 	else
@@ -545,7 +545,7 @@ static const struct pci_device_id piix4_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x790b) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_KERNCZ_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
 		     PCI_DEVICE_ID_SERVERWORKS_OSB4) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
-- 
1.9.1

[PATCH 3/3] SDHCI: Change AMD SDHCI quirk application scope

[Wan ZongShun]

Change this quirk to apply to AMD Carrizo platform.

Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com>
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>

Tested-by: Nath, Arindam <Arindam.Nath@amd.com>
Tested-by: Ramesh, Ramya <Ramya.Ramesh@amd.com>
---
 drivers/mmc/host/sdhci-pci.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index f208f20..94f54d2 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -724,14 +724,37 @@ static const struct sdhci_pci_fixes sdhci_rtsx = {
 	.probe_slot	= rtsx_probe_slot,
 };
 
+/*AMD chipset generation*/
+enum amd_chipset_gen {
+	AMD_CHIPSET_BEFORE_ML,
+	AMD_CHIPSET_CZ,
+	AMD_CHIPSET_NL,
+	AMD_CHIPSET_UNKNOWN,
+};
+
 static int amd_probe(struct sdhci_pci_chip *chip)
 {
 	struct pci_dev	*smbus_dev;
+	enum amd_chipset_gen gen;
 
 	smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
 			PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
+	if (smbus_dev) {
+		gen = AMD_CHIPSET_BEFORE_ML;
+	} else {
+		smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+				PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
+		if (smbus_dev) {
+			if (smbus_dev->revision < 0x51)
+				gen = AMD_CHIPSET_CZ;
+			else
+				gen = AMD_CHIPSET_NL;
+		} else {
+			gen = AMD_CHIPSET_UNKNOWN;
+		}
+	}
 
-	if (smbus_dev && (smbus_dev->revision < 0x51)) {
+	if ((gen == AMD_CHIPSET_BEFORE_ML) || (gen == AMD_CHIPSET_CZ)) {
 		chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
 		chip->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
 	}
-- 
1.9.1

Re: [PATCH 1/3] pci_ids: Add AMD KERNCZ device ID support

[Borislav Petkov]

On Sat, Jun 06, 2015 at 09:13:38PM +0800, Wan ZongShun wrote:
> The KERNCZ is new AMD SB/FCH generation name, like HUDSON2.
> We will adopt 0x790b as device ID since from this gereration.
> 
> Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com>
> Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>

You need to choose one email address, not two for the same person's
Signed-off-by line. I'd prefer the amd.com one.

For more info, please read Documentation/SubmittingPatches.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--

Re: [PATCH 2/3] i2c-piix4: Use Macro for AMD CZ SMBus device ID

[Borislav Petkov]

On Sat, Jun 06, 2015 at 09:13:39PM +0800, Wan ZongShun wrote:
> Change AMD CZ SMBUS device ID from 0x790b to
> use Macro definition
> 
> Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com>
> Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>

Same here, one SOB per person please.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--