remoteproc: add elf file load support
The current implementation supports only binary file load.
Add helpers to support ELF32 format (sanity check, and load).
Note that since an ELF32 image is built for the remote processor, the
load function uses the device_to_virt ops to translate the addresses.
Implement a basic translation for sandbox_testproc.
Add related tests. Test result:
=> ut dm remoteproc_elf
Test: dm_test_remoteproc_elf: remoteproc.c
Test: dm_test_remoteproc_elf: remoteproc.c (flat tree)
Failures: 0
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/drivers/remoteproc/sandbox_testproc.c b/drivers/remoteproc/sandbox_testproc.c
index 51a67e6..5f35119 100644
--- a/drivers/remoteproc/sandbox_testproc.c
+++ b/drivers/remoteproc/sandbox_testproc.c
@@ -8,6 +8,7 @@
#include <dm.h>
#include <errno.h>
#include <remoteproc.h>
+#include <asm/io.h>
/**
* enum sandbox_state - different device states
@@ -300,6 +301,23 @@
return ret;
}
+#define SANDBOX_RPROC_DEV_TO_PHY_OFFSET 0x1000
+/**
+ * sandbox_testproc_device_to_virt() - Convert device address to virtual address
+ * @dev: device to operate upon
+ * @da: device address
+ * @return converted virtual address
+ */
+static void *sandbox_testproc_device_to_virt(struct udevice *dev, ulong da)
+{
+ u64 paddr;
+
+ /* Use a simple offset conversion */
+ paddr = da + SANDBOX_RPROC_DEV_TO_PHY_OFFSET;
+
+ return phys_to_virt(paddr);
+}
+
static const struct dm_rproc_ops sandbox_testproc_ops = {
.init = sandbox_testproc_init,
.reset = sandbox_testproc_reset,
@@ -308,6 +326,7 @@
.stop = sandbox_testproc_stop,
.is_running = sandbox_testproc_is_running,
.ping = sandbox_testproc_ping,
+ .device_to_virt = sandbox_testproc_device_to_virt,
};
static const struct udevice_id sandbox_ids[] = {