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| author | Linus Walleij <linus.walleij@linaro.org> | 2021-05-11 09:44:58 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2021-05-12 01:04:23 +0200 |
| commit | 3babb604a8545a2551772c656cbebd6f40321861 (patch) | |
| tree | 292df00c0fa9cf2515a03acfb4f8110a8644c124 /arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts | |
| parent | 152b7a599674d27f26bec1a4fdbac63564d0fc93 (diff) | |
| download | lwn-3babb604a8545a2551772c656cbebd6f40321861.tar.gz lwn-3babb604a8545a2551772c656cbebd6f40321861.zip | |
ARM: dts: ixp4xx: Create a proper expansion bus
The IXP4xx expansion bus is 24 bits (256 MB) that is memory
mapped between 0x50000000-0x5fffffff usin a set of chip
selects. The size of the windows is 16 or 32MB defined by
the boot loader system configuration at runtime.
Create a rudimentary simple-bus and move the flash memories
to the expansion bus, inside the SoC.
Cc: Zoltan HERPAI <wigyori@uid0.hu>
Cc: Raylynn Knight <rayknight@me.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts')
| -rw-r--r-- | arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts b/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts index 130a245a77e6..581ff18a2310 100644 --- a/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts +++ b/arch/arm/boot/dts/intel-ixp43x-gateworks-gw2358.dts @@ -76,23 +76,25 @@ }; }; - flash@50000000 { - compatible = "intel,ixp4xx-flash", "cfi-flash"; - bank-width = <2>; - /* - * 32 MB of Flash in 0x20000 byte blocks - * mapped in at 0x50000000 - */ - reg = <0x50000000 0x2000000>; - - partitions { - compatible = "redboot-fis"; - /* Eraseblock at 0x1fe0000 */ - fis-index-block = <0xff>; + soc { + bus@50000000 { + flash@0 { + compatible = "intel,ixp4xx-flash", "cfi-flash"; + bank-width = <2>; + /* + * 32 MB of Flash in 0x20000 byte blocks + * mapped in at CS0. + */ + reg = <0x00000000 0x2000000>; + + partitions { + compatible = "redboot-fis"; + /* Eraseblock at 0x1fe0000 */ + fis-index-block = <0xff>; + }; + }; }; - }; - soc { pci@c0000000 { status = "ok"; |