diff options
| author | Pekon Gupta <pekon@ti.com> | 2014-02-05 17:28:34 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2014-03-02 22:15:54 +0400 |
| commit | f68e355c86cff91e5266cf937ea24fcba0641900 (patch) | |
| tree | 96409ee59c365d4cf0daf600ecfd7ab67bb9dd0a /arch/arm/boot/dts/am4372.dtsi | |
| parent | c06c52701695911eb594f15a2560cf55ae97e313 (diff) | |
| download | linux-f68e355c86cff91e5266cf937ea24fcba0641900.tar.xz | |
ARM: dts: am43xx: add support for parallel NAND flash
This patch:
- enables GPMC h/w and ELM h/w engine for AM43xx devices (am4372.dtsi)
- adds pinmux and DT node for Micron 4K-paged x8 NAND device (MT29F4G08AB)
present on following boards:
am43x-epos-evm:
On this board, NAND Flash control lines are muxed with QSPI, Thus only
one of the two can be used at a time. Selection is controlled by:
(a) dynamically driving following GPIO pin from software
GPMC_A0(GPIO) == 0 NAND is selected (default)
GPMC_A0(GPIO) == 1 eMMC is selected
Signed-off-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am4372.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/am4372.dtsi | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index eb74ab82aa94..a4555bedd713 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -701,6 +701,30 @@ <&edma 11>; dma-names = "tx", "rx"; }; + + elm: elm@48080000 { + compatible = "ti,am3352-elm"; + reg = <0x48080000 0x2000>; + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>; + ti,hwmods = "elm"; + clocks = <&l4ls_gclk>; + clock-names = "fck"; + status = "disabled"; + }; + + gpmc: gpmc@50000000 { + compatible = "ti,am3352-gpmc"; + ti,hwmods = "gpmc"; + clocks = <&l3s_gclk>; + clock-names = "fck"; + reg = <0x50000000 0x2000>; + interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>; + gpmc,num-cs = <7>; + gpmc,num-waitpins = <2>; + #address-cells = <2>; + #size-cells = <1>; + status = "disabled"; + }; }; }; |