--- /dev/null
+From 39f95bb22c03b18ac6c4ef1b4485414dd4a303cb Mon Sep 17 00:00:00 2001
+From: Abhimanyu Saini <abhimanyu.saini@nxp.com>
+Date: Fri, 24 Jun 2016 14:37:42 +0530
+Subject: [PATCH 65/93] docs: fsl-ppa: Add documentation for PPA trusted FW
+
+Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
+Signed-off-by: Abhimanyu Saini <abhimanyu.saini@nxp.com>
+---
+ doc/README.fsl-ppa | 26 ++++++++++++++++++++++++++
+ 1 file changed, 26 insertions(+)
+ create mode 100644 doc/README.fsl-ppa
+
+diff --git a/doc/README.fsl-ppa b/doc/README.fsl-ppa
+new file mode 100644
+index 0000000..76cd01f
+--- /dev/null
++++ b/doc/README.fsl-ppa
+@@ -0,0 +1,26 @@
++PPA FW for U-boot
++
++Summary
++=======
++PPA is a trusted firmware for ARMv8 , that handles smc calls from lower
++exception levels, like power state co-ordination interface call or
++smc calls to trusted OS from the Linux kernel.
++
++Notes
++=====
++
++1. Currenly, u-boot run at the highest exception level processor
++ supported, which is EL3 in case of ARMv8, if PPA FW is incorporated
++ U-boot copies it to secure location in DDR.
++2. During init U-boot passes control to PPA FW and before returning
++ the core jumps to EL2.
++
++Using PPA
++=========
++1. Ensure CONFIG_FSL_LS_PPA is set for your platform
++2. Program PPA binary on address CONFIG_SYS_LS_PPA_FW_ADDR on flash
++
++Contributors
++============
++ Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
++ Abhimanyu Saini <abhimanyu.saini@nxp.com>
+--
+1.7.9.5
+
projects / openwrt / staging / yousong.git / blobdiff