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

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
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@ -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>;
};