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ARM: dts: lpc4350-hitex-eval: add emc pins and static memory devices

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Setup the emc pins used by external memory devices and add
configuration for the devices found on the Hitex eval board.

The Hitex eval board has a NOR Flash attached to chip select 0
and 512 kB of SRAM on chip select 2.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Joachim Eastwood 2015-07-31 00:24:27 +02:00 committed by Olof Johansson
parent aceacfa6ac
commit 027b4a6d6a
1 changed files with 164 additions and 0 deletions
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164
arch/arm/boot/dts/lpc4350-hitex-eval.dts
View file

@ -37,6 +37,106 @@ memory {
};
&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_15_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";
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_cs2_cfg {
pins = "p1_5", "pd_12";
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_mii_pins: enet-mii-pins {
enet_mii_rxd0_3_cfg {
pins = "p1_15", "p0_0", "p9_3", "p9_2";
@ -103,6 +203,70 @@ uart0_tx_cfg {
};
};
&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>;
mpmc,byte-lane-low;
mpmc,write-enable-delay = <0>;
mpmc,output-enable-delay = <30>;
mpmc,read-access-delay = <90>;
mpmc,page-mode-read-delay = <55>;
mpmc,write-access-delay = <55>;
mpmc,turn-round-delay = <55>;
ext_sram: sram@2,0 {
compatible = "mmio-sram";
reg = <2 0 0x80000>; /* 512 KiB SRAM on IS62WV25616 */
};
};
};
&enet_tx_clk {
clock-frequency = <25000000>;
};