Messages in this thread | | | Subject | Re: [PATCH v3 2/2] arm64: dts: Add BRCM IPROC NAND DT node for NS2 | From | Ray Jui <> | Date | Tue, 27 Oct 2015 17:25:32 -0700 |
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On 10/27/2015 5:19 PM, Brian Norris wrote: > On Fri, Oct 23, 2015 at 10:46:13AM +0530, Anup Patel wrote: >> The NAND controller on NS2 SoC is compatible with existing >> BRCM IPROC NAND driver so let's enable it in NS2 DT and >> NS2 SVK DT. >> >> This patch also fixes use of node labels in ns2-svk.dts. >> >> Signed-off-by: Anup Patel <anup.patel@broadcom.com> >> Reviewed-by: Ray Jui <rjui@broadcom.com> >> Reviewed-by: Scott Branden <sbranden@broadcom.com> >> --- >> arch/arm64/boot/dts/broadcom/ns2-svk.dts | 30 ++++++++++++++++++++---------- >> arch/arm64/boot/dts/broadcom/ns2.dtsi | 14 ++++++++++++++ >> 2 files changed, 34 insertions(+), 10 deletions(-) >> >> diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts >> index e5950d5..6bb3d4d 100644 >> --- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts >> +++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts >> @@ -50,18 +50,28 @@ >> device_type = "memory"; >> reg = <0x000000000 0x80000000 0x00000000 0x40000000>; >> }; >> +}; >> >> - soc: soc { >> - i2c0: i2c@66080000 { >> - status = "ok"; >> - }; >> +&i2c0 { >> + status = "ok"; >> +}; >> >> - i2c1: i2c@660b0000 { >> - status = "ok"; >> - }; >> +&i2c1 { >> + status = "ok"; >> +}; >> + >> +&uart3 { >> + status = "ok"; >> +}; >> >> - uart3: serial@66130000 { >> - status = "ok"; >> - }; >> +&nand { >> + nandcs@0 { >> + compatible = "brcm,nandcs"; >> + reg = <0>; >> + nand-ecc-mode = "hw"; >> + nand-ecc-strength = <8>; >> + nand-ecc-step-size = <512>; >> + #address-cells = <1>; >> + #size-cells = <1>; >> }; >> }; >> diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi >> index f603277..9610822 100644 >> --- a/arch/arm64/boot/dts/broadcom/ns2.dtsi >> +++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi >> @@ -212,5 +212,19 @@ >> compatible = "brcm,iproc-rng200"; >> reg = <0x66220000 0x28>; >> }; >> + >> + nand: nand@66460000 { >> + compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1"; > > Technically, the binding says you should also have "brcm,brcmnand" as a > last resort. Otherwise (for the NAND parts): >
I believe Anup was seeing issues when both "brcm,nand-iproc" and "brcm,brcmnand" are present.
Note "brcm,nand-iproc" invokes 'iproc_nand_probe', which calls 'brcmnand_probe' in the end.
"brcm,brcmnand" invokes 'brcmstb_nand_probe', which also calls 'brcmstb_probe', but without all the prep configuration required for "brcm,nand-iproc".
> Reviewed-by: Brian Norris <computersforpeace@gmail.com>
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