x86: spi: Add a way to access the SPI mapping via registers

[thirdparty/u-boot.git] / arch / x86 / cpu / intel_common / fast_spi.c

diff --git a/arch/x86/cpu/intel_common/fast_spi.c b/arch/x86/cpu/intel_common/fast_spi.c
index a6e3d0a5bfc1db3b073a1fd358cf3b3eb53022ca..5d3944dee2c84858d55a01b34343c464b8185f14 100644 (file)
--- a/arch/x86/cpu/intel_common/fast_spi.c
+++ b/arch/x86/cpu/intel_common/fast_spi.c
@@ -31,21 +31,30 @@ static ulong fast_spi_get_bios_region(struct fast_spi_regs *regs,
        return bios_start;
 }
 
+int fast_spi_get_bios_mmap_regs(struct fast_spi_regs *regs, ulong *map_basep,
+                               uint *map_sizep, uint *offsetp)
+{
+       ulong base;
+
+       base = fast_spi_get_bios_region(regs, map_sizep);
+       *map_basep = (u32)-*map_sizep - base;
+       *offsetp = base;
+
+       return 0;
+}
+
 int fast_spi_get_bios_mmap(pci_dev_t pdev, ulong *map_basep, uint *map_sizep,
                           uint *offsetp)
 {
        struct fast_spi_regs *regs;
-       ulong bar, base, mmio_base;
+       ulong bar, mmio_base;
 
        /* Special case to find mapping without probing the device */
        pci_x86_read_config(pdev, PCI_BASE_ADDRESS_0, &bar, PCI_SIZE_32);
        mmio_base = bar & PCI_BASE_ADDRESS_MEM_MASK;
        regs = (struct fast_spi_regs *)mmio_base;
-       base = fast_spi_get_bios_region(regs, map_sizep);
-       *map_basep = (u32)-*map_sizep - base;
-       *offsetp = base;
 
-       return 0;
+       return fast_spi_get_bios_mmap_regs(regs, map_basep, map_sizep, offsetp);
 }
 
 int fast_spi_early_init(pci_dev_t pdev, ulong mmio_base)