summaryrefslogtreecommitdiff
path: root/common/spl/spl_xip.c
diff options
context:
space:
mode:
authorVikas Manocha <vikas.manocha@st.com>2017-05-28 12:55:11 -0700
committerTom Rini <trini@konsulko.com>2017-06-09 11:23:59 -0400
commitc6d9e9dbc3d02c03ea1f6671034317593a2ea4ff (patch)
treed8e3b9133a3e8b7dfceed5ef2274e0bb12e5540b /common/spl/spl_xip.c
parentb97476965bf292c13074e01de4bd39253de0ef66 (diff)
SPL: Add XIP booting support
Enable support for XIP (execute in place) of U-Boot or kernel image. There is no need to copy image from flash to ram if flash supports execute in place. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Diffstat (limited to 'common/spl/spl_xip.c')
-rw-r--r--common/spl/spl_xip.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/common/spl/spl_xip.c b/common/spl/spl_xip.c
new file mode 100644
index 0000000000..18c7d11f2d
--- /dev/null
+++ b/common/spl/spl_xip.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2017 Vikas Manocha <vikas.manocha@st.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <spl.h>
+
+static int spl_xip(struct spl_image_info *spl_image,
+ struct spl_boot_device *bootdev)
+{
+#ifdef CONFIG_SPL_OS_BOOT
+ if (!spl_start_uboot()) {
+ spl_image->arg = (void *)CONFIG_SYS_FDT_BASE;
+ spl_image->name = "Linux";
+ spl_image->os = IH_OS_LINUX;
+ spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
+ spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
+ debug("spl: payload xipImage, load addr: 0x%lx\n",
+ spl_image->load_addr);
+ return 0;
+ }
+#endif
+ return(spl_parse_image_header(spl_image, (const struct image_header *)
+ CONFIG_SYS_UBOOT_BASE));
+}
+SPL_LOAD_IMAGE_METHOD("XIP", 0, BOOT_DEVICE_XIP, spl_xip);