Re: [U-Boot] [PATCH 2/4] arm: dra7xx: Add vendor partition to Android GPT table for eMMC

[Tom Rini]

On Thu, Oct 12, 2017 at 10:47:03PM -0500, Praneeth Bajjuri wrote:

> From: Vishal Mahaveer 
> 
> Add vendor partition to Android GPT table for eMMC.
> 
> A Vendor image contains SoC-specific code and configuration.
> 
> Prior to Android 8.0, the vendor partition was optional ;
> files belonging to these images were placed in boot.img or system.img
> with symlinks (such as /vendor >/system/vendor ) when absent.
> 
> Android 8.0 makes the vendor partition mandatory
> 
> The goal is to modularize Android partitions with standard interface between
> the Android Platform (on system.img ) and vendor-provided code(on vendor.img).
> 
> This standard interface enables the Android Platform to be updated
> without affecting the SoC partitions. This makes it possible to upgrade a
> device system.img from Android 8.0 to Android P while other images (such as
> vendor.img) remain at Android 8.0. This modularity enables timely
> Android platform upgrades (such as monthly security updates )
> without requiring SoC/ODM partners to update SoC- and device-specific code.
> 
> Signed-off-by: Vishal Mahaveer 
> Signed-off-by: Praneeth Bajjuri 

Reviewed-by: Tom Rini 

-- 
Tom


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[U-Boot] [PATCH 2/4] arm: dra7xx: Add vendor partition to Android GPT table for eMMC

[Praneeth Bajjuri]

From: Vishal Mahaveer 

Add vendor partition to Android GPT table for eMMC.

A Vendor image contains SoC-specific code and configuration.

Prior to Android 8.0, the vendor partition was optional ;
files belonging to these images were placed in boot.img or system.img
with symlinks (such as /vendor >/system/vendor ) when absent.

Android 8.0 makes the vendor partition mandatory

The goal is to modularize Android partitions with standard interface between
the Android Platform (on system.img ) and vendor-provided code(on vendor.img).

This standard interface enables the Android Platform to be updated
without affecting the SoC partitions. This makes it possible to upgrade a
device system.img from Android 8.0 to Android P while other images (such as
vendor.img) remain at Android 8.0. This modularity enables timely
Android platform upgrades (such as monthly security updates )
without requiring SoC/ODM partners to update SoC- and device-specific code.

Signed-off-by: Vishal Mahaveer 
Signed-off-by: Praneeth Bajjuri 
---
 include/configs/dra7xx_evm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h
index 717861f..e5e 100644
--- a/include/configs/dra7xx_evm.h
+++ b/include/configs/dra7xx_evm.h
@@ -66,6 +66,7 @@
"name=recovery,size=10M,uuid=${uuid_gpt_recovery};" \
"name=boot,size=10M,uuid=${uuid_gpt_boot};" \
"name=system,size=768M,uuid=${uuid_gpt_system};" \
+   "name=vendor,size=256M,uuid=${uuid_gpt_vendor};" \
"name=cache,size=256M,uuid=${uuid_gpt_cache};" \
"name=ipu1,size=1M,uuid=${uuid_gpt_ipu1};" \
"name=ipu2,size=1M,uuid=${uuid_gpt_ipu2};" \
-- 
1.9.1

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