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| author | Alex Marginean <alexm.osslist@gmail.com> | 2019-06-07 11:24:23 +0300 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2019-07-10 16:52:58 -0600 |
| commit | 0b143d8ab2b84219552d652e46619360a38888d1 (patch) | |
| tree | 165554ec7e72d81dcb55564cd6586e3635cf7688 /include/pci.h | |
| parent | 2204bc1bd3abedc37a72282b4ddcfb3eca8cfccb (diff) | |
| download | u-boot-0b143d8ab2b84219552d652e46619360a38888d1.tar.gz | |
drivers: pci: add map_bar support for Enhanced Allocation
Makes dm_pci_map_bar API available for integrated PCI devices that
support Enhanced Allocation instead of the original PCI BAR mechanism.
Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/pci.h')
| -rw-r--r-- | include/pci.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/pci.h b/include/pci.h index 40c7751acf..0aab438159 100644 --- a/include/pci.h +++ b/include/pci.h @@ -455,6 +455,17 @@ #define PCI_EXT_CAP_ID_PTM 0x1F /* Precision Time Measurement */ #define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PTM +/* Enhanced Allocation Registers */ +#define PCI_EA_NUM_ENT 2 /* Number of Capability Entries */ +#define PCI_EA_NUM_ENT_MASK 0x3f /* Num Entries Mask */ +#define PCI_EA_FIRST_ENT 4 /* First EA Entry in List */ +#define PCI_EA_ES 0x00000007 /* Entry Size */ +#define PCI_EA_BEI 0x000000f0 /* BAR Equivalent Indicator */ +/* Base, MaxOffset registers */ +/* bit 0 is reserved */ +#define PCI_EA_IS_64 0x00000002 /* 64-bit field flag */ +#define PCI_EA_FIELD_MASK 0xfffffffc /* For Base & Max Offset */ + /* Include the ID list */ #include <pci_ids.h> @@ -1312,6 +1323,8 @@ pci_addr_t dm_pci_phys_to_bus(struct udevice *dev, phys_addr_t addr, * that corresponds to it. * Can be used for 32b BARs 0-5 on type 0 functions and for 32b BARs 0-1 on * type 1 functions. + * Can also be used on type 0 functions that support Enhanced Allocation for + * 32b/64b BARs. Note that duplicate BEI entries are not supported. * * @dev: Device to check * @bar: Bar register offset (PCI_BASE_ADDRESS_...) |