15a14cf166
The QorIQ LS1012A processor, optimized for battery-backed or USB-powered, integrates a single ARM Cortex-A53 core with a hardware packet forwarding engine and high-speed interfaces to deliver line-rate networking performance. QorIQ LS1012A Reference Design System (LS1012ARDB) is a high-performance development platform, with a complete debugging environment. The LS1012ARDB board supports the QorIQ LS1012A processor and is optimized to support the high-bandwidth DDR3L memory and a full complement of high-speed SerDes ports. LEDE/OPENWRT will auto strip executable program file while make. So we need select CONFIG_NO_STRIP=y while make menuconfig to avoid the ppfe network fiemware be destroyed, then run make to build ls1012ardb firmware. The fsl-quadspi flash with jffs2 fs is unstable and arise some failed message. This issue have noticed the IP owner for investigate, hope he can solve it earlier. So the ls1012ardb now also provide a xx-firmware.ext4.bin as default firmware, and the uboot bootcmd will run wrtboot_ext4rfs for "rootfstype=ext4" bootargs. Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>
47 lines
1.4 KiB
Diff
47 lines
1.4 KiB
Diff
From 39f95bb22c03b18ac6c4ef1b4485414dd4a303cb Mon Sep 17 00:00:00 2001
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From: Abhimanyu Saini <abhimanyu.saini@nxp.com>
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Date: Fri, 24 Jun 2016 14:37:42 +0530
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Subject: [PATCH 65/93] docs: fsl-ppa: Add documentation for PPA trusted FW
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Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
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Signed-off-by: Abhimanyu Saini <abhimanyu.saini@nxp.com>
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---
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doc/README.fsl-ppa | 26 ++++++++++++++++++++++++++
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1 file changed, 26 insertions(+)
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create mode 100644 doc/README.fsl-ppa
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diff --git a/doc/README.fsl-ppa b/doc/README.fsl-ppa
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new file mode 100644
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index 0000000..76cd01f
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--- /dev/null
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+++ b/doc/README.fsl-ppa
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@@ -0,0 +1,26 @@
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+PPA FW for U-boot
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+
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+Summary
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+=======
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+PPA is a trusted firmware for ARMv8 , that handles smc calls from lower
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+exception levels, like power state co-ordination interface call or
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+smc calls to trusted OS from the Linux kernel.
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+
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+Notes
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+=====
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+
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+1. Currenly, u-boot run at the highest exception level processor
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+ supported, which is EL3 in case of ARMv8, if PPA FW is incorporated
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+ U-boot copies it to secure location in DDR.
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+2. During init U-boot passes control to PPA FW and before returning
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+ the core jumps to EL2.
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+
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+Using PPA
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+=========
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+1. Ensure CONFIG_FSL_LS_PPA is set for your platform
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+2. Program PPA binary on address CONFIG_SYS_LS_PPA_FW_ADDR on flash
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+
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+Contributors
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+============
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+ Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
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+ Abhimanyu Saini <abhimanyu.saini@nxp.com>
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--
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1.7.9.5
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