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| author | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> | 2017-08-15 20:13:54 +0200 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2017-09-01 20:26:27 +0200 |
| commit | 9ed68785f7f2b001a6911d64fbd10cfc6fa49b27 (patch) | |
| tree | 57bf1ba37285d0a090eb52d24f15115f58d64e4f /arch/arc/boot | |
| parent | ARCv2: IOC: Tighten up the contraints (specifically base / size alignment) (diff) | |
| download | linux-9ed68785f7f2b001a6911d64fbd10cfc6fa49b27.tar.xz linux-9ed68785f7f2b001a6911d64fbd10cfc6fa49b27.zip | |
ARC: mm: Decouple RAM base address from kernel link address
[Needed for HSDK]
Currently the first page of system (hence RAM base) is assumed to be
@ CONFIG_LINUX_LINK_BASE, where kernel itself is linked.
However is case of HSDK platform, for reasons explained in that patch,
this is not true. kernel needs to be linked @ 0x9000_0000 while DDR
is still wired at 0x8000_0000. To properly account for this 256M of RAM,
we need to introduce a new option and base page frame accountiing off of
it.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: renamed CONFIG_KERNEL_RAM_BASE_ADDRESS => CONFIG_LINUX_RAM_BASE
: simplified changelog]
Diffstat (limited to 'arch/arc/boot')
| -rw-r--r-- | arch/arc/boot/dts/axc001.dtsi | 2 | ||||
| -rw-r--r-- | arch/arc/boot/dts/axc003.dtsi | 2 | ||||
| -rw-r--r-- | arch/arc/boot/dts/axc003_idu.dtsi | 2 | ||||
| -rw-r--r-- | arch/arc/boot/dts/nsim_hs.dts | 2 |
4 files changed, 4 insertions, 4 deletions
diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi index a380ffa1a458..fdc266504ada 100644 --- a/arch/arc/boot/dts/axc001.dtsi +++ b/arch/arc/boot/dts/axc001.dtsi @@ -99,7 +99,7 @@ memory { device_type = "memory"; - /* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */ + /* CONFIG_LINUX_RAM_BASE needs to match low mem start */ reg = <0x0 0x80000000 0x0 0x1b000000>; /* (512 - 32) MiB */ }; diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi index dca7e39409be..4e6e9f57e790 100644 --- a/arch/arc/boot/dts/axc003.dtsi +++ b/arch/arc/boot/dts/axc003.dtsi @@ -109,7 +109,7 @@ memory { device_type = "memory"; - /* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */ + /* CONFIG_LINUX_RAM_BASE needs to match low mem start */ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */ }; diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi index 5b56beffc1c5..63954a8b0100 100644 --- a/arch/arc/boot/dts/axc003_idu.dtsi +++ b/arch/arc/boot/dts/axc003_idu.dtsi @@ -115,7 +115,7 @@ memory { device_type = "memory"; - /* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */ + /* CONFIG_LINUX_RAM_BASE needs to match low mem start */ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */ }; diff --git a/arch/arc/boot/dts/nsim_hs.dts b/arch/arc/boot/dts/nsim_hs.dts index 3772c40c245e..8d787b251f73 100644 --- a/arch/arc/boot/dts/nsim_hs.dts +++ b/arch/arc/boot/dts/nsim_hs.dts @@ -18,7 +18,7 @@ memory { device_type = "memory"; - /* CONFIG_LINUX_LINK_BASE needs to match low mem start */ + /* CONFIG_LINUX_RAM_BASE needs to match low mem start */ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MB low mem */ 0x1 0x00000000 0x0 0x40000000>; /* 1 GB highmem */ }; |