[PATCH v2 06/18] ARM: am57xx: cl-som-am57x: dts: add spi-flash support
From: Dmitry Lifshitz <hidden>
Date: 2015-11-30 14:26:44
Also in:
linux-arm-kernel, linux-omap
Subsystem:
the rest · Maintainer:
Linus Torvalds
On-board spi-flash chip is used as a main boot device. Add spi-flash chip support (over QSPI bus). Signed-off-by: Dmitry Lifshitz <lifshitz-UTxiZqZC01RS1MOuV/RT9w@public.gmane.org> Acked-by: Igor Grinberg <grinberg-UTxiZqZC01RS1MOuV/RT9w@public.gmane.org> --- v2: * Add "spi-max-frequency" property for &qspi node. arch/arm/boot/dts/am57xx-cl-som-am57x.dts | 43 +++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+)
diff --git a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
index 196e7c7..9042185 100644
--- a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
+++ b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts@@ -93,6 +93,17 @@ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */ >; }; + + qspi1_pins: pinmux_qspi1_pins { + pinctrl-single,pins = < + DRA7XX_CORE_IOPAD(0x3474, PIN_INPUT | MUX_MODE1) /* gpmc_a13.qspi1_rtclk */ + DRA7XX_CORE_IOPAD(0x3480, PIN_INPUT | MUX_MODE1) /* gpmc_a16.qspi1_d0 */ + DRA7XX_CORE_IOPAD(0x3484, PIN_INPUT | MUX_MODE1) /* gpmc_a17.qspi1_d1 */ + DRA7XX_CORE_IOPAD(0x3488, PIN_INPUT | MUX_MODE1) /* qpmc_a18.qspi1_sclk */ + DRA7XX_CORE_IOPAD(0x34b8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs2.qspi1_cs0 */ + DRA7XX_CORE_IOPAD(0x34bc, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs3.qspi1_cs1 */ + >; + }; }; &i2c1 {
@@ -332,3 +343,35 @@ cap-mmc-dual-data-rate; }; +&qspi { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&qspi1_pins>; + + spi-max-frequency = <20000000>; + + spi_flash: spi_flash@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "jedec,spi-nor"; + reg = <0>; /* CS0 */ + spi-max-frequency = <20000000>; + spi-tx-bus-width = <1>; + spi-rx-bus-width = <1>; + + partition@0 { + label = "uboot"; + reg = <0x0 0xc0000>; + }; + + partition@c0000 { + label = "uboot environment"; + reg = <0xc0000 0x40000>; + }; + + partition@100000 { + label = "reserved"; + reg = <0x100000 0x0>; + }; + }; +};
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html