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| author | Linus Walleij <linus.walleij@linaro.org> | 2021-07-16 01:58:54 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2021-08-09 01:55:10 +0200 |
| commit | f2791ed73193f0f0a5b5fa41da1ee4dfefa64a68 (patch) | |
| tree | dfc30ea167d7db9516b1192a5ac884d4467690e4 /arch/arm/boot/dts/intel-ixp4xx.dtsi | |
| parent | ARM: dts: ixp4xx: Add second UART (diff) | |
| download | linux-f2791ed73193f0f0a5b5fa41da1ee4dfefa64a68.tar.xz linux-f2791ed73193f0f0a5b5fa41da1ee4dfefa64a68.zip | |
ARM: dts: ixp4xx: Use the expansion bus
Replace the "simple-bus" simplification by the proper bus for
IXP4xx memory or device expansion.
Use chip-select addressing with two address cells on all the
flashes mounted on the IXP4xx devices. This includes all flash
chips.
Change the unit-name from @50000000 to @c4000000 as the DTS
validation screams. The registers for controlling the bus are
at c4000000 but the actual memory windows and ranges are at
50000000. Well it is just syntax, we can live with it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/intel-ixp4xx.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/intel-ixp4xx.dtsi | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/arch/arm/boot/dts/intel-ixp4xx.dtsi b/arch/arm/boot/dts/intel-ixp4xx.dtsi index 45cb3ad954c1..e5af2d463074 100644 --- a/arch/arm/boot/dts/intel-ixp4xx.dtsi +++ b/arch/arm/boot/dts/intel-ixp4xx.dtsi @@ -15,16 +15,30 @@ interrupt-parent = <&intcon>; /* - * The IXP4xx expansion bus is a set of 16 or 32MB - * windows in the 256MB space from 0x50000000 to - * 0x5fffffff. + * The IXP4xx expansion bus is a set of up to 7 each up to 16MB + * windows in the 256MB space from 0x50000000 to 0x5fffffff. */ - bus@50000000 { - compatible = "simple-bus"; - #address-cells = <1>; + bus@c4000000 { + /* compatible and reg filled in by per-soc device tree */ + native-endian; + #address-cells = <2>; #size-cells = <1>; - ranges = <0x00000000 0x50000000 0x10000000>; - dma-ranges = <0x00000000 0x50000000 0x10000000>; + ranges = <0 0x0 0x50000000 0x01000000>, + <1 0x0 0x51000000 0x01000000>, + <2 0x0 0x52000000 0x01000000>, + <3 0x0 0x53000000 0x01000000>, + <4 0x0 0x54000000 0x01000000>, + <5 0x0 0x55000000 0x01000000>, + <6 0x0 0x56000000 0x01000000>, + <7 0x0 0x57000000 0x01000000>; + dma-ranges = <0 0x0 0x50000000 0x01000000>, + <1 0x0 0x51000000 0x01000000>, + <2 0x0 0x52000000 0x01000000>, + <3 0x0 0x53000000 0x01000000>, + <4 0x0 0x54000000 0x01000000>, + <5 0x0 0x55000000 0x01000000>, + <6 0x0 0x56000000 0x01000000>, + <7 0x0 0x57000000 0x01000000>; }; qmgr: queue-manager@60000000 { |