All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Pali Rohár" <pali@kernel.org>
To: "Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2] PCI: aardvark: Add support for PCI Bridge Subsystem Vendor ID on emulated bridge
Date: Tue, 12 Jul 2022 00:59:15 +0200	[thread overview]
Message-ID: <20220711225915.13896-1-pali@kernel.org> (raw)
In-Reply-To: <20220711221823.12154-1-pali@kernel.org>

Register with Subsystem Device/Vendor ID is at offset 0x2c. Export is via
emulated bridge.

After this change Subsystem ID is visible in lspci output at line:

  Capabilities: [40] Subsystem

Signed-off-by: Pali Rohár <pali@kernel.org>

---
Changes in v2:
* Fix wrong rebase, do not add PCIE_CORE_EXP_ROM_BAR_REG
---
 drivers/pci/controller/pci-aardvark.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 74511f015168..060936ef01fe 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -32,6 +32,7 @@
 #define PCIE_CORE_DEV_ID_REG					0x0
 #define PCIE_CORE_CMD_STATUS_REG				0x4
 #define PCIE_CORE_DEV_REV_REG					0x8
+#define PCIE_CORE_SSDEV_ID_REG					0x2c
 #define PCIE_CORE_PCIEXP_CAP					0xc0
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
 #define     PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX			BIT(5)
@@ -982,6 +983,8 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 	/* Indicates supports for Completion Retry Status */
 	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
 
+	bridge->subsystem_vendor_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) & 0xffff;
+	bridge->subsystem_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) >> 16;
 	bridge->has_pcie = true;
 	bridge->data = pcie;
 	bridge->ops = &advk_pci_bridge_emul_ops;
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: "Pali Rohár" <pali@kernel.org>
To: "Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2] PCI: aardvark: Add support for PCI Bridge Subsystem Vendor ID on emulated bridge
Date: Tue, 12 Jul 2022 00:59:15 +0200	[thread overview]
Message-ID: <20220711225915.13896-1-pali@kernel.org> (raw)
In-Reply-To: <20220711221823.12154-1-pali@kernel.org>

Register with Subsystem Device/Vendor ID is at offset 0x2c. Export is via
emulated bridge.

After this change Subsystem ID is visible in lspci output at line:

  Capabilities: [40] Subsystem

Signed-off-by: Pali Rohár <pali@kernel.org>

---
Changes in v2:
* Fix wrong rebase, do not add PCIE_CORE_EXP_ROM_BAR_REG
---
 drivers/pci/controller/pci-aardvark.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 74511f015168..060936ef01fe 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -32,6 +32,7 @@
 #define PCIE_CORE_DEV_ID_REG					0x0
 #define PCIE_CORE_CMD_STATUS_REG				0x4
 #define PCIE_CORE_DEV_REV_REG					0x8
+#define PCIE_CORE_SSDEV_ID_REG					0x2c
 #define PCIE_CORE_PCIEXP_CAP					0xc0
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
 #define     PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX			BIT(5)
@@ -982,6 +983,8 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 	/* Indicates supports for Completion Retry Status */
 	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
 
+	bridge->subsystem_vendor_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) & 0xffff;
+	bridge->subsystem_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) >> 16;
 	bridge->has_pcie = true;
 	bridge->data = pcie;
 	bridge->ops = &advk_pci_bridge_emul_ops;
-- 
2.20.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-07-11 22:59 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-11 22:18 [PATCH] PCI: aardvark: Add support for PCI Bridge Subsystem Vendor ID on emulated bridge Pali Rohár
2022-07-11 22:18 ` Pali Rohár
2022-07-11 22:59 ` Pali Rohár [this message]
2022-07-11 22:59   ` [PATCH v2] " Pali Rohár
2022-08-29  9:31   ` Lorenzo Pieralisi
2022-08-29  9:31     ` Lorenzo Pieralisi
2022-08-29  9:34     ` Pali Rohár
2022-08-29  9:34       ` Pali Rohár
2022-09-16 12:44   ` Lorenzo Pieralisi
2022-09-16 12:44     ` Lorenzo Pieralisi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220711225915.13896-1-pali@kernel.org \
    --to=pali@kernel.org \
    --cc=bhelgaas@google.com \
    --cc=kw@linux.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=lpieralisi@kernel.org \
    --cc=robh@kernel.org \
    --cc=thomas.petazzoni@bootlin.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.