diff options
| author | Simon Glass <sjg@chromium.org> | 2019-09-25 08:56:42 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-10-08 13:57:48 +0800 |
| commit | 75d8f49481a5c260d0cf1024d41f0b29d57e0efe (patch) | |
| tree | f434a546d0cc97e9cad48f59e54902d1307fad24 /arch/sandbox | |
| parent | 594d272cfd3dc43f118efb952676715b0382af24 (diff) | |
sandbox: pci: Create a new sandbox_pci_read_bar() function
The code in swapcase can be used by other sandbox drivers. Move it into a
common place to allow this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: remove inclusion of <asm/test.h> in pci_sandbox.c]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/sandbox')
| -rw-r--r-- | arch/sandbox/include/asm/test.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h index 1b21af6bed..cd2b9e3155 100644 --- a/arch/sandbox/include/asm/test.h +++ b/arch/sandbox/include/asm/test.h @@ -198,4 +198,19 @@ int sandbox_get_pch_spi_protect(struct udevice *dev); */ int sandbox_get_pci_ep_irq_count(struct udevice *dev); +/** + * sandbox_pci_read_bar() - Read the BAR value for a read_config operation + * + * This is used in PCI emulators to read a base address reset. This has special + * rules because when the register is set to 0xffffffff it can be used to + * discover the type and size of the BAR. + * + * @barval: Current value of the BAR + * @type: Type of BAR (PCI_BASE_ADDRESS_SPACE_IO or + * PCI_BASE_ADDRESS_MEM_TYPE_32) + * @size: Size of BAR in bytes + * @return BAR value to return from emulator + */ +uint sandbox_pci_read_bar(u32 barval, int type, uint size); + #endif |