@@ -88,6 +88,110 @@
};
&pinctrl {
+ emc_pins: emc-pins {
+ emc_addr0_23_cfg {
+ pins = "p2_9", "p2_10", "p2_11", "p2_12",
+ "p2_13", "p1_0", "p1_1", "p1_2",
+ "p2_8", "p2_7", "p2_6", "p2_2",
+ "p2_1", "p2_0", "p6_8", "p6_7",
+ "pd_16", "pd_15", "pe_0", "pe_1",
+ "pe_2", "pe_3", "pe_4", "pa_4";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_data0_31_cfg {
+ pins = "p1_7", "p1_8", "p1_9", "p1_10",
+ "p1_11", "p1_12", "p1_13", "p1_14",
+ "p5_4", "p5_5", "p5_6", "p5_7",
+ "p5_0", "p5_1", "p5_2", "p5_3",
+ "pd_2", "pd_3", "pd_4", "pd_5",
+ "pd_6", "pd_7", "pd_8", "pd_9",
+ "pe_5", "pe_6", "pe_7", "pe_8",
+ "pe_9", "pe_10", "pe_11", "pe_12";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_we_oe_cfg {
+ pins = "p1_6", "p1_3";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_bls0_3_cfg {
+ pins = "p1_4", "p6_6", "pd_13", "pd_10";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_cs0_3_cfg {
+ pins = "p1_5", "p6_3", "pd_12", "pd_11";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_sdram_dqm0_3_cfg {
+ pins = "p6_12", "p6_10", "pd_0", "pe_13";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_sdram_ras_cas_cfg {
+ pins = "p6_5", "p6_4";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_sdram_dycs0_cfg {
+ pins = "p6_9";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_sdram_cke_cfg {
+ pins = "p6_11";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+
+ emc_sdram_clock_cfg {
+ pins = "clk0", "clk1", "clk2", "clk3";
+ function = "emc";
+ slew-rate = <1>;
+ bias-disable;
+ input-enable;
+ input-schmitt-disable;
+ };
+ };
+
enet_rmii_pins: enet-rmii-pins {
enet_rmii_rxd_cfg {
pins = "p1_15", "p0_0";
@@ -237,6 +341,66 @@
};
};
+&emc {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&emc_pins>;
+
+ cs0 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ mpmc,cs = <0>;
+ mpmc,memory-width = <16>;
+ mpmc,byte-lane-low;
+ mpmc,write-enable-delay = <0>;
+ mpmc,output-enable-delay = <0>;
+ mpmc,read-access-delay = <70>;
+ mpmc,page-mode-read-delay = <70>;
+
+ flash@0,0 {
+ compatible = "sst,sst39vf320", "cfi-flash";
+ reg = <0 0 0x400000>;
+ bank-width = <2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "bootloader";
+ reg = <0x000000 0x040000>; /* 256 KiB */
+ };
+
+ partition@1 {
+ label = "kernel";
+ reg = <0x040000 0x2c0000>; /* 2.75 MiB */
+ };
+
+ partition@2 {
+ label = "rootfs";
+ reg = <0x300000 0x100000>; /* 1 MiB */
+ };
+ };
+ };
+
+ cs2 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ mpmc,cs = <2>;
+ mpmc,memory-width = <16>;
+
+ mmio_leds: gpio@2,0 {
+ compatible = "ti,7416374";
+ reg = <2 0 0x2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ };
+};
+
&enet_tx_clk {
clock-frequency = <50000000>;
};
Setup the emc pins used by external memory devices and add configuration for the devices found on the EA4357 devkit. The EA4357 devkit has a NOR Flash attached to chip select 0 and a D-type flip-flop used for LEDs on chip select 2. Signed-off-by: Joachim Eastwood <manabian@gmail.com> --- arch/arm/boot/dts/lpc4357-ea4357-devkit.dts | 164 ++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+)