spi: Add support for memory-mapped flash
On x86 platforms the SPI flash can be mapped into memory so that the
contents can be read with normal memory accesses.
Add a new SPI method to find the location of the SPI flash in memory. This
differs from the existing device-tree "memory-map" mechanism in that the
location can be discovered at run-time.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/test/dm/sf.c b/test/dm/sf.c
index 3788d59..65aab4f 100644
--- a/test/dm/sf.c
+++ b/test/dm/sf.c
@@ -23,6 +23,9 @@
int full_size = 0x200000;
int size = 0x10000;
u8 *src, *dst;
+ uint map_size;
+ ulong map_base;
+ uint offset;
int i;
src = map_sysmem(0x20000, full_size);
@@ -54,6 +57,12 @@
sandbox_sf_set_block_protect(emul, 0);
ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
+ /* Check mapping */
+ ut_assertok(dm_spi_get_mmap(dev, &map_base, &map_size, &offset));
+ ut_asserteq(0x1000, map_base);
+ ut_asserteq(0x2000, map_size);
+ ut_asserteq(0x100, offset);
+
/*
* Since we are about to destroy all devices, we must tell sandbox
* to forget the emulation device