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| author | Karl Beldan <kbeldan@baylibre.com> | 2016-09-08 11:33:24 -0700 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2016-09-15 19:37:32 +0530 |
| commit | 9304af1b9ffa95dcb37d642852f8c67b98ea349a (patch) | |
| tree | 0f666a36c3283d201515ad184d5c9b22866f1438 /arch/arm/boot | |
| parent | 9d05b389846312751108b16f3f8fccd51fa92715 (diff) | |
| download | lwn-9304af1b9ffa95dcb37d642852f8c67b98ea349a.tar.gz lwn-9304af1b9ffa95dcb37d642852f8c67b98ea349a.zip | |
ARM: dts: da850-lcdk: Add NAND to DT
This adds DT support for the NAND connected to the SoC AEMIF.
Passed torture hashing a 40MB file on top of UBIFS using subpages.
Signed-off-by: Karl Beldan <kbeldan@baylibre.com>
[khilman: add back default partitions from an earlier patch]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/da850-lcdk.dts | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts index 7563260e95d1..7b8ab21fed6c 100644 --- a/arch/arm/boot/dts/da850-lcdk.dts +++ b/arch/arm/boot/dts/da850-lcdk.dts @@ -63,6 +63,27 @@ 0x04 0x00000110 0x00000ff0 >; }; + + nand_pins: nand_pins { + pinctrl-single,bits = < + /* EMA_WAIT[0], EMA_OE, EMA_WE, EMA_CS[3] */ + 0x1c 0x10110010 0xf0ff00f0 + /* + * EMA_D[0], EMA_D[1], EMA_D[2], + * EMA_D[3], EMA_D[4], EMA_D[5], + * EMA_D[6], EMA_D[7] + */ + 0x24 0x11111111 0xffffffff + /* + * EMA_D[8], EMA_D[9], EMA_D[10], + * EMA_D[11], EMA_D[12], EMA_D[13], + * EMA_D[14], EMA_D[15] + */ + 0x20 0x11111111 0xffffffff + /* EMA_A[1], EMA_A[2] */ + 0x30 0x01100000 0x0ff00000 + >; + }; }; &serial2 { @@ -136,3 +157,65 @@ tx-num-evt = <32>; rx-num-evt = <32>; }; + +&aemif { + pinctrl-names = "default"; + pinctrl-0 = <&nand_pins>; + status = "okay"; + cs3 { + #address-cells = <2>; + #size-cells = <1>; + clock-ranges; + ranges; + + ti,cs-chipselect = <3>; + + nand@2000000,0 { + compatible = "ti,davinci-nand"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0 0x02000000 0x02000000 + 1 0x00000000 0x00008000>; + + ti,davinci-chipselect = <1>; + ti,davinci-mask-ale = <0>; + ti,davinci-mask-cle = <0>; + ti,davinci-mask-chipsel = <0>; + + ti,davinci-nand-buswidth = <16>; + ti,davinci-ecc-mode = "hw"; + ti,davinci-ecc-bits = <4>; + ti,davinci-nand-use-bbt; + + /* + * The OMAP-L132/L138 Bootloader doc SPRAB41E reads: + * "To boot from NAND Flash, the AIS should be written + * to NAND block 1 (NAND block 0 is not used by default)". + * The same doc mentions that for ROM "Silicon Revision 2.1", + * "Updated NAND boot mode to offer boot from block 0 or block 1". + * However the limitaion is left here by default for compatibility + * with older silicon and because it needs new boot pin settings + * not possible in stock LCDK. + */ + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "u-boot env"; + reg = <0 0x020000>; + }; + partition@0x020000 { + /* The LCDK defaults to booting from this partition */ + label = "u-boot"; + reg = <0x020000 0x080000>; + }; + partition@0x0a0000 { + label = "free space"; + reg = <0x0a0000 0>; + }; + }; + }; + }; +}; |