Difference between revisions of "DESK-XZ7-L/Peripherals/NOR"
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| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:# | + | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|2024/01/23 |
| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:# | + | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|DESK-XZ7-L-1.0.1 release |
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|} | |} | ||
<section end=History/> | <section end=History/> | ||
| + | __FORCETOC__ | ||
<section begin=Body/> | <section begin=Body/> | ||
| − | == | + | == Peripheral NOR == |
=== Device tree configuration === | === Device tree configuration === | ||
| − | + | Here below an example of device tree for the ''Quad-SPI NOR flash'' configuration used on standard DAVE's kit for the [[BORA SOM | BORA]], [[BORA Xpress SOM| BORA Xpress]] and [[BORA Lite SOM | BORA Lite]]: | |
| − | |||
| − | Here below an example of device tree configuration used on standard DAVE's kit for the | ||
From <code>bora.dtsi</code>: | From <code>bora.dtsi</code>: | ||
| Line 43: | Line 42: | ||
... | ... | ||
</pre> | </pre> | ||
| + | ===Accessing the peripheral === | ||
====Linux messages at boot time==== | ====Linux messages at boot time==== | ||
| − | |||
| − | |||
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
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</pre> | </pre> | ||
| − | + | ==== Check the mtd partitions ==== | |
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
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mtd2: 1be00000 00020000 "rootfs" | mtd2: 1be00000 00020000 "rootfs" | ||
</pre> | </pre> | ||
| − | |||
<section end=Body/> | <section end=Body/> | ||
| − | + | [[Category:BORA]] [[Category:BORA Xpress]] [[Category:BORA Lite]] | |
| − | |||
| − | [[Category:BORA]] | ||
Latest revision as of 09:08, 26 January 2024
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| 2024/01/23 | DESK-XZ7-L-1.0.1 release | ||
Contents
Peripheral NOR[edit | edit source]
Device tree configuration[edit | edit source]
Here below an example of device tree for the Quad-SPI NOR flash configuration used on standard DAVE's kit for the BORA, BORA Xpress and BORA Lite:
From bora.dtsi:
...
...
&qspi {
flash0: flash@0 {
// we need to use 128Mbit (16MiB) device compatibile even if
// the real hardware has a 256Mbit (32MiB) device because of
// Zynq QSPI controller limits
compatible = "spansion,s25fl128s1", "jedec,spi-nor";
#address-cells = <1>;
#size-cells = <1>;
reg = <0>;
spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
spi-max-frequency = <25000000>;
};
};
...
...
Accessing the peripheral[edit | edit source]
Linux messages at boot time[edit | edit source]
[ 0.509067] spi-nor spi0.0: found s25fl256s1, expected s25fl128s1 [ 0.515401] spi-nor spi0.0: s25fl256s1 (32768 Kbytes) [ 0.520482] 1 fixed-partitions partitions found on MTD device spi0.0 [ 0.526863] Creating 1 MTD partitions on "spi0.0": [ 0.531648] 0x000000000000-0x000002000000 : "boot"
Check the mtd partitions[edit | edit source]
root@boralite:~# cat /proc/mtd dev: size erasesize name mtd0: 01600000 00020000 "bootbin" mtd1: 00040000 00020000 "ubootenv" mtd2: 1be00000 00020000 "rootfs"
