pci: Add some PCI Express capability register offset definitions

Add PCI Express capability definitions required by the Broadcom
STB PCIe controller driver.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I7ebba592cfe787bffeb0985ada38f11b721166f7

diff --git a/include/pci.h b/include/pci.h
index d54d3ba..00caeef 100644 (file)
--- a/include/pci.h
+++ b/include/pci.h
@@ -475,11 +475,20 @@
 #define PCI_EXP_DEVCTL         8       /* Device Control */
 #define  PCI_EXP_DEVCTL_BCR_FLR        0x8000  /* Bridge Configuration Retry / FLR */
 #define PCI_EXP_LNKCAP         12      /* Link Capabilities */
+#define  PCI_EXP_LNKCAP_SLS    0x0000000f /* Supported Link Speeds */
+#define  PCI_EXP_LNKCAP_MLW    0x000003f0 /* Maximum Link Width */
 #define  PCI_EXP_LNKCAP_DLLLARC        0x00100000 /* Data Link Layer Link Active Reporting Capable */
 #define PCI_EXP_LNKSTA         18      /* Link Status */
+#define  PCI_EXP_LNKSTA_CLS    0x000f  /* Current Link Speed */
+#define  PCI_EXP_LNKSTA_CLS_2_5GB 0x0001 /* Current Link Speed 2.5GT/s */
+#define  PCI_EXP_LNKSTA_CLS_5_0GB 0x0002 /* Current Link Speed 5.0GT/s */
+#define  PCI_EXP_LNKSTA_CLS_8_0GB 0x0003 /* Current Link Speed 8.0GT/s */
+#define  PCI_EXP_LNKSTA_NLW    0x03f0  /* Negotiated Link Width */
+#define  PCI_EXP_LNKSTA_NLW_SHIFT 4    /* start of NLW mask in link status */
 #define  PCI_EXP_LNKSTA_DLLLA  0x2000  /* Data Link Layer Link Active */
 #define PCI_EXP_SLTCAP         20      /* Slot Capabilities */
 #define  PCI_EXP_SLTCAP_PSN    0xfff80000 /* Physical Slot Number */
+#define PCI_EXP_LNKCTL2                48      /* Link Control 2 */
 
 /* Include the ID list */