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Message-Id: <20220905185150.22220-2-pali@kernel.org>
Date: Mon, 5 Sep 2022 20:51:50 +0200
From: Pali Rohár <pali@...nel.org>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Wilczyński <kw@...ux.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/2] PCI: mvebu: For consistency add _OFF suffix to all registers
Signed-off-by: Pali Rohár <pali@...nel.org>
---
This patch depends on now accepted patch:
"PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value"
https://lore.kernel.org/linux-pci/20220824112124.21675-1-pali@kernel.org/
---
drivers/pci/controller/pci-mvebu.c | 40 +++++++++++++++---------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
index c222dc189567..6ef8c1ee4cbb 100644
--- a/drivers/pci/controller/pci-mvebu.c
+++ b/drivers/pci/controller/pci-mvebu.c
@@ -34,7 +34,7 @@
#define PCIE_BAR_LO_OFF(n) (0x0010 + ((n) << 3))
#define PCIE_BAR_HI_OFF(n) (0x0014 + ((n) << 3))
#define PCIE_SSDEV_ID_OFF 0x002c
-#define PCIE_CAP_PCIEXP 0x0060
+#define PCIE_CAP_PCIEXP_OFF 0x0060
#define PCIE_CAP_PCIERR_OFF 0x0100
#define PCIE_BAR_CTRL_OFF(n) (0x1804 + (((n) - 1) * 4))
#define PCIE_WIN04_CTRL_OFF(n) (0x1820 + ((n) << 4))
@@ -83,8 +83,8 @@
#define PCIE_SSPL_SCALE_SHIFT 8
#define PCIE_SSPL_SCALE_MASK GENMASK(9, 8)
#define PCIE_SSPL_ENABLE BIT(16)
-#define PCIE_RC_RTSTA 0x1a14
-#define PCIE_DEBUG_CTRL 0x1a60
+#define PCIE_RC_RTSTA_OFF 0x1a14
+#define PCIE_DEBUG_CTRL_OFF 0x1a60
#define PCIE_DEBUG_SOFT_RESET BIT(20)
struct mvebu_pcie_port;
@@ -296,10 +296,10 @@ static void mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
* be set to number of SerDes PCIe lanes (1 or 4). If this register is
* not set correctly then link with endpoint card is not established.
*/
- lnkcap = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_LNKCAP);
+ lnkcap = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCAP);
lnkcap &= ~PCI_EXP_LNKCAP_MLW;
lnkcap |= (port->is_x4 ? 4 : 1) << 4;
- mvebu_writel(port, lnkcap, PCIE_CAP_PCIEXP + PCI_EXP_LNKCAP);
+ mvebu_writel(port, lnkcap, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCAP);
/* Disable Root Bridge I/O space, memory space and bus mastering. */
cmd = mvebu_readl(port, PCIE_CMD_OFF);
@@ -690,11 +690,11 @@ mvebu_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
switch (reg) {
case PCI_EXP_DEVCAP:
- *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_DEVCAP);
+ *value = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_DEVCAP);
break;
case PCI_EXP_DEVCTL:
- *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_DEVCTL);
+ *value = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_DEVCTL);
break;
case PCI_EXP_LNKCAP:
@@ -704,13 +704,13 @@ mvebu_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
* Additionally enable Data Link Layer Link Active Reporting
* Capable bit as DL_Active indication is provided too.
*/
- *value = (mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_LNKCAP) &
+ *value = (mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCAP) &
~PCI_EXP_LNKCAP_CLKPM) | PCI_EXP_LNKCAP_DLLLARC;
break;
case PCI_EXP_LNKCTL:
/* DL_Active indication is provided via PCIE_STAT_OFF */
- *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_LNKCTL) |
+ *value = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCTL) |
(mvebu_pcie_link_up(port) ?
(PCI_EXP_LNKSTA_DLLLA << 16) : 0);
break;
@@ -748,19 +748,19 @@ mvebu_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
break;
case PCI_EXP_RTSTA:
- *value = mvebu_readl(port, PCIE_RC_RTSTA);
+ *value = mvebu_readl(port, PCIE_RC_RTSTA_OFF);
break;
case PCI_EXP_DEVCAP2:
- *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_DEVCAP2);
+ *value = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_DEVCAP2);
break;
case PCI_EXP_DEVCTL2:
- *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_DEVCTL2);
+ *value = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_DEVCTL2);
break;
case PCI_EXP_LNKCTL2:
- *value = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_LNKCTL2);
+ *value = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCTL2);
break;
default:
@@ -902,7 +902,7 @@ mvebu_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
switch (reg) {
case PCI_EXP_DEVCTL:
- mvebu_writel(port, new, PCIE_CAP_PCIEXP + PCI_EXP_DEVCTL);
+ mvebu_writel(port, new, PCIE_CAP_PCIEXP_OFF + PCI_EXP_DEVCTL);
break;
case PCI_EXP_LNKCTL:
@@ -913,7 +913,7 @@ mvebu_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
*/
new &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
- mvebu_writel(port, new, PCIE_CAP_PCIEXP + PCI_EXP_LNKCTL);
+ mvebu_writel(port, new, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCTL);
/*
* When dropping to Detect via Hot Reset, Disable Link
* or Loopback states, the Link Failure interrupt is not
@@ -953,7 +953,7 @@ mvebu_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
case PCI_EXP_RTSTA:
/*
- * PME Status bit in Root Status Register (PCIE_RC_RTSTA)
+ * PME Status bit in Root Status Register (PCIE_RC_RTSTA_OFF)
* is read-only and can be cleared only by writing 0b to the
* Interrupt Cause RW0C register (PCIE_INT_CAUSE_OFF). So
* clear PME via Interrupt Cause and also set port->pme_pending
@@ -978,11 +978,11 @@ mvebu_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
break;
case PCI_EXP_DEVCTL2:
- mvebu_writel(port, new, PCIE_CAP_PCIEXP + PCI_EXP_DEVCTL2);
+ mvebu_writel(port, new, PCIE_CAP_PCIEXP_OFF + PCI_EXP_DEVCTL2);
break;
case PCI_EXP_LNKCTL2:
- mvebu_writel(port, new, PCIE_CAP_PCIEXP + PCI_EXP_LNKCTL2);
+ mvebu_writel(port, new, PCIE_CAP_PCIEXP_OFF + PCI_EXP_LNKCTL2);
break;
default:
@@ -1042,7 +1042,7 @@ static int mvebu_pci_bridge_emul_init(struct mvebu_pcie_port *port)
u32 dev_id = mvebu_readl(port, PCIE_DEV_ID_OFF);
u32 dev_rev = mvebu_readl(port, PCIE_DEV_REV_OFF);
u32 ssdev_id = mvebu_readl(port, PCIE_SSDEV_ID_OFF);
- u32 pcie_cap = mvebu_readl(port, PCIE_CAP_PCIEXP);
+ u32 pcie_cap = mvebu_readl(port, PCIE_CAP_PCIEXP_OFF);
u8 pcie_cap_ver = ((pcie_cap >> 16) & PCI_EXP_FLAGS_VERS);
bridge->conf.vendor = cpu_to_le16(dev_id & 0xffff);
@@ -1103,7 +1103,7 @@ static int mvebu_pci_bridge_emul_init(struct mvebu_pcie_port *port)
bridge->subsystem_vendor_id = ssdev_id & 0xffff;
bridge->subsystem_id = ssdev_id >> 16;
bridge->has_pcie = true;
- bridge->pcie_start = PCIE_CAP_PCIEXP;
+ bridge->pcie_start = PCIE_CAP_PCIEXP_OFF;
bridge->data = port;
bridge->ops = &mvebu_pci_bridge_emul_ops;
--
2.20.1
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