| Message ID | 1367484501-3623-1-git-send-email-pekon@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
> -----Original Message----- > From: Gupta, Pekon > Sent: Thursday, May 02, 2013 2:18 PM > To: Gupta, Pekon; Cousson, Benoit; tony@atomide.com; > linux@arm.linux.org.uk > Cc: Philip, Avinash; linux-omap@vger.kernel.org; devicetree- > discuss@lists.ozlabs.org; linux-arm-kernel@lists.infradead.org; linux- > kernel@vger.kernel.org; Nori, Sekhar; Hebbar, Gururaja; Hiremath, > Vaibhav; zonque@gmail.com; jacmet@sunsite.dk > Subject: [v3, 3/3] ARM: dts: AM33XX: Add NAND flash device tree data to > am335x-evm > > From: avinash philip <avinashphilip@ti.com> > > NAND flash connected in am335x-evm on GPMC controller. This patch adds > device tree node in am3355-evm with GPMC contoller timing for NAND > flash > interface, NAND partition table, ECC scheme, elm handle id. > > Signed-off-by: Philip Avinash <avinashphilip@ti.com> > Signed-off-by: Gupta, Pekon <pekon@ti.com> > --- > arch/arm/boot/dts/am335x-evm.dts | 95 > ++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 95 insertions(+) > > diff --git a/arch/arm/boot/dts/am335x-evm.dts > b/arch/arm/boot/dts/am335x-evm.dts > index d649644..07761fd 100644 > --- a/arch/arm/boot/dts/am335x-evm.dts > +++ b/arch/arm/boot/dts/am335x-evm.dts > @@ -44,6 +44,26 @@ > 0x154 0x27 /* spi0_d0.gpio0_3, INPUT | MODE7 > */ > >; > }; > + > + nandflash_pins_s0: nandflash_pins_s0 { > + pinctrl-single,pins = < > + 0x0 0x30 /* gpmc_ad0.gpmc_ad0, INPUT | > PULLUP | MODE0 */ > + 0x4 0x30 /* gpmc_ad1.gpmc_ad1, INPUT | > PULLUP | MODE0 */ > + 0x8 0x30 /* gpmc_ad2.gpmc_ad2, INPUT | > PULLUP | MODE0 */ > + 0xc 0x30 /* gpmc_ad3.gpmc_ad3, INPUT | > PULLUP | MODE0 */ > + 0x10 0x30 /* gpmc_ad4.gpmc_ad4, INPUT | > PULLUP | MODE0 */ > + 0x14 0x30 /* gpmc_ad5.gpmc_ad5, INPUT | > PULLUP | MODE0 */ > + 0x18 0x30 /* gpmc_ad6.gpmc_ad6, INPUT | > PULLUP | MODE0 */ > + 0x1c 0x30 /* gpmc_ad7.gpmc_ad7, INPUT | > PULLUP | MODE0 */ > + 0x70 0x30 /* gpmc_wait0.gpmc_wait0, INPUT | > PULLUP | MODE0 */ > + 0x74 0x37 /* gpmc_wpn.gpio0_30, INPUT | > PULLUP | MODE7 */ > + 0x7c 0x8 /* gpmc_csn0.gpmc_csn0, PULL DISA > */ > + 0x90 0x8 /* gpmc_advn_ale.gpmc_advn_ale, > PULL DISA */ > + 0x94 0x8 /* gpmc_oen_ren.gpmc_oen_ren, PULL > DISA */ > + 0x98 0x8 /* gpmc_wen.gpmc_wen, PULL DISA */ > + 0x9c 0x8 /* gpmc_be0n_cle.gpmc_be0n_cle, > PULL DISA */ > + >; > + }; > }; > > ocp { > @@ -102,6 +122,81 @@ > reg = <0x48>; > }; > }; > + > + elm: elm@48080000 { > + status = "okay"; > + }; > + > + gpmc: gpmc@50000000 { > + status = "okay"; > + pinctrl-0 = <&nandflash_pins_s0>; It would be good, if you label this pin configuration with 'default' name, as below - pinctrl-names = "default"; Thanks, Vaibhav > + ranges = <0 0 0x08000000 0x10000000>; /* CS0: > NAND */ > + nand@0,0 { > + reg = <0 0 0>; /* CS0, offset 0 */ > + nand-bus-width = <8>; > + ti,nand-ecc-opt = "bch8"; > + > + gpmc,sync-clk = <0>; > + gpmc,cs-on = <0>; > + gpmc,cs-rd-off = <44>; > + gpmc,cs-wr-off = <44>; > + gpmc,adv-on = <6>; > + gpmc,adv-rd-off = <34>; > + gpmc,adv-wr-off = <44>; > + gpmc,we-off = <40>; > + gpmc,oe-off = <54>; > + gpmc,access = <64>; > + gpmc,rd-cycle = <82>; > + gpmc,wr-cycle = <82>; > + gpmc,wr-access = <40>; > + gpmc,wr-data-mux-bus = <0>; > + > + #address-cells = <1>; > + #size-cells = <1>; > + elm_id = <&elm>; > + > + /* MTD partition table */ > + partition@0 { > + label = "SPL1"; > + reg = <0x00000000 0x000020000>; > + }; > + > + partition@1 { > + label = "SPL2"; > + reg = <0x00020000 0x00020000>; > + }; > + > + partition@2 { > + label = "SPL3"; > + reg = <0x00040000 0x00020000>; > + }; > + > + partition@3 { > + label = "SPL4"; > + reg = <0x00060000 0x00020000>; > + }; > + > + partition@4 { > + label = "U-boot"; > + reg = <0x00080000 0x001e0000>; > + }; > + > + partition@5 { > + label = "environment"; > + reg = <0x00260000 0x00020000>; > + }; > + > + partition@6 { > + label = "Kernel"; > + reg = <0x00280000 0x00500000>; > + }; > + > + partition@7 { > + label = "File-System"; > + reg = <0x00780000 0x0F880000>; > + }; > + }; > + }; > }; > > vbat: fixedregulator@0 { > -- > 1.8.1
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index d649644..07761fd 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -44,6 +44,26 @@ 0x154 0x27 /* spi0_d0.gpio0_3, INPUT | MODE7 */ >; }; + + nandflash_pins_s0: nandflash_pins_s0 { + pinctrl-single,pins = < + 0x0 0x30 /* gpmc_ad0.gpmc_ad0, INPUT | PULLUP | MODE0 */ + 0x4 0x30 /* gpmc_ad1.gpmc_ad1, INPUT | PULLUP | MODE0 */ + 0x8 0x30 /* gpmc_ad2.gpmc_ad2, INPUT | PULLUP | MODE0 */ + 0xc 0x30 /* gpmc_ad3.gpmc_ad3, INPUT | PULLUP | MODE0 */ + 0x10 0x30 /* gpmc_ad4.gpmc_ad4, INPUT | PULLUP | MODE0 */ + 0x14 0x30 /* gpmc_ad5.gpmc_ad5, INPUT | PULLUP | MODE0 */ + 0x18 0x30 /* gpmc_ad6.gpmc_ad6, INPUT | PULLUP | MODE0 */ + 0x1c 0x30 /* gpmc_ad7.gpmc_ad7, INPUT | PULLUP | MODE0 */ + 0x70 0x30 /* gpmc_wait0.gpmc_wait0, INPUT | PULLUP | MODE0 */ + 0x74 0x37 /* gpmc_wpn.gpio0_30, INPUT | PULLUP | MODE7 */ + 0x7c 0x8 /* gpmc_csn0.gpmc_csn0, PULL DISA */ + 0x90 0x8 /* gpmc_advn_ale.gpmc_advn_ale, PULL DISA */ + 0x94 0x8 /* gpmc_oen_ren.gpmc_oen_ren, PULL DISA */ + 0x98 0x8 /* gpmc_wen.gpmc_wen, PULL DISA */ + 0x9c 0x8 /* gpmc_be0n_cle.gpmc_be0n_cle, PULL DISA */ + >; + }; }; ocp { @@ -102,6 +122,81 @@ reg = <0x48>; }; }; + + elm: elm@48080000 { + status = "okay"; + }; + + gpmc: gpmc@50000000 { + status = "okay"; + pinctrl-0 = <&nandflash_pins_s0>; + ranges = <0 0 0x08000000 0x10000000>; /* CS0: NAND */ + nand@0,0 { + reg = <0 0 0>; /* CS0, offset 0 */ + nand-bus-width = <8>; + ti,nand-ecc-opt = "bch8"; + + gpmc,sync-clk = <0>; + gpmc,cs-on = <0>; + gpmc,cs-rd-off = <44>; + gpmc,cs-wr-off = <44>; + gpmc,adv-on = <6>; + gpmc,adv-rd-off = <34>; + gpmc,adv-wr-off = <44>; + gpmc,we-off = <40>; + gpmc,oe-off = <54>; + gpmc,access = <64>; + gpmc,rd-cycle = <82>; + gpmc,wr-cycle = <82>; + gpmc,wr-access = <40>; + gpmc,wr-data-mux-bus = <0>; + + #address-cells = <1>; + #size-cells = <1>; + elm_id = <&elm>; + + /* MTD partition table */ + partition@0 { + label = "SPL1"; + reg = <0x00000000 0x000020000>; + }; + + partition@1 { + label = "SPL2"; + reg = <0x00020000 0x00020000>; + }; + + partition@2 { + label = "SPL3"; + reg = <0x00040000 0x00020000>; + }; + + partition@3 { + label = "SPL4"; + reg = <0x00060000 0x00020000>; + }; + + partition@4 { + label = "U-boot"; + reg = <0x00080000 0x001e0000>; + }; + + partition@5 { + label = "environment"; + reg = <0x00260000 0x00020000>; + }; + + partition@6 { + label = "Kernel"; + reg = <0x00280000 0x00500000>; + }; + + partition@7 { + label = "File-System"; + reg = <0x00780000 0x0F880000>; + }; + }; + }; }; vbat: fixedregulator@0 {