[PATCH v2] ARM: dts: aspeed: Update reserved memory nodes for zaius and witherspoon

[Rick Altherr]

Current Zaius and Barreleye G2 boards have AST2500 which has VGA support.
Google hasn't tried the VGA but it is there. We plan to switch to 2520
later for our own designs but it's only a BOM option to switch between the
two.

On Feb 16, 2017 7:15 PM, "Cyril Bur" <cyrilbur at gmail.com> wrote:

Zaius platform doesn't use VGA so don't reserve that memory

Signed-off-by: Cyril Bur <cyrilbur at gmail.com>
---
v2: Drop reserving the framebuffer on Zaius
    Both platforms have 1GB not 512MB - adjust numbers
    Add comment requested by Joel.

 arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 15 +++++++++++++--
 arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts       | 12 ++++++++++--
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
index 4b2d8aa8abb6..b79cadb2f6d7 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
@@ -25,9 +25,20 @@
                #size-cells = <1>;
                ranges;

-               flash_memory: region at 94000000 {
+               /*
+                * The addreses for the flash_memory reserved range are the
+                * highest allowable for the size of the mapping (ie, the
+                * address has no set bits greater than the size)
+                */
+
+               flash_memory: region at b8000000 {
+                       no-map;
+                       reg = <0xb8000000 0x04000000>; /* 64M */
+               };
+
+               vga_memory: framebuffer at bc000000 {
                        no-map;
-                       reg = <0x94000000 0x04000000>; /* 64M */
+                       reg = <0xbc000000 0x04000000>; /* 64M */
                };
        };

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
index e1c9b3f4fe44..5a06da43801b 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
@@ -25,10 +25,18 @@
                #size-cells = <1>;
                ranges;

-               flash_memory: region at 94000000 {
+               /*
+                * The addreses for the flash_memory reserved range are the
+                * highest allowable for the size of the mapping (ie, the
+                * address has no set bits greater than the size)
+                */
+
+               flash_memory: region at bc000000 {
                        no-map;
-                       reg = <0x94000000 0x04000000>; /* 64M */
+                       reg = <0xbc000000 0x04000000>; /* 64M */
                };
+
+               /* Zaius doesn't use VGA so don't reserve VGA buffer */
        };

        onewire0 {
--
2.11.1
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