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Commit bd78c33a authored by Anton Vorontsov's avatar Anton Vorontsov Committed by Kumar Gala
Browse files

powerpc/85xx: Add STMicro M25P40 serial flash support for MPC8569E-MDS 



For serial flash support we need to:

- Add QE Par IO Bank E device tree node, a GPIO from this bank is
  used for SPI chip-select line;
- Add serial-flash node;
- Add proper module alias into of/base.c.

Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent 5e8306fe

arch/powerpc/boot/dts/mpc8569mds.dts

+23 −3
Original line number Diff line number Diff line
@@ -259,10 +259,21 @@ 
		};



		par_io@e0100 {

			#address-cells = <1>;

			#size-cells = <1>;

			reg = <0xe0100 0x100>;

			ranges = <0x0 0xe0100 0x100>;

			device_type = "par_io";

			num-ports = <7>;



			qe_pio_e: gpio-controller@80 {

				#gpio-cells = <2>;

				compatible = "fsl,mpc8569-qe-pario-bank",

					     "fsl,mpc8323-qe-pario-bank";

				reg = <0x80 0x18>;

				gpio-controller;

			};



			pio1: ucc_pin@01 {

				pio-map = <

			/* port  pin  dir  open_drain  assignment  has_irq */
@@ -368,12 +379,21 @@ 
		};



		spi@4c0 {

			cell-index = <0>;

			compatible = "fsl,spi";

			#address-cells = <1>;

			#size-cells = <0>;

			compatible = "fsl,mpc8569-qe-spi", "fsl,spi";

			reg = <0x4c0 0x40>;

			cell-index = <0>;

			interrupts = <2>;

			interrupt-parent = <&qeic>;

			mode = "cpu";

			gpios = <&qe_pio_e 30 0>;

			mode = "cpu-qe";



			serial-flash@0 {

				compatible = "stm,m25p40";

				reg = <0>;

				spi-max-frequency = <25000000>;

			};

		};



		spi@500 {

drivers/of/base.c

+1 −0
Original line number Diff line number Diff line
@@ -447,6 +447,7 @@ struct of_modalias_table { 
static struct of_modalias_table of_modalias_table[] = {

	{ "fsl,mcu-mpc8349emitx", "mcu-mpc8349emitx" },

	{ "mmc-spi-slot", "mmc_spi" },

	{ "stm,m25p40", "m25p80" },

};



/**