Difference between revisions of "DESK-XZ7-L/Peripherals/NOR"
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| − | == | + | == Quad-SPI NOR flash memory == |
=== Device tree configuration === | === Device tree configuration === | ||
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This configuration work for Bora, Boralite and BoraX platforms. | This configuration work for Bora, Boralite and BoraX platforms. | ||
| − | Here below an example of device tree configuration used on standard DAVE's kit for the Bora, Boralite and BoraX '' | + | Here below an example of device tree configuration used on standard DAVE's kit for the Bora, Boralite and BoraX ''Quad-SPI NOR flash'': |
From <code>bora.dtsi</code>: | From <code>bora.dtsi</code>: | ||
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* bootlog message | * bootlog message | ||
| + | |||
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
[ 0.509067] spi-nor spi0.0: found s25fl256s1, expected s25fl128s1 | [ 0.509067] spi-nor spi0.0: found s25fl256s1, expected s25fl128s1 | ||
Revision as of 13:52, 24 January 2024
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| Issue Date | Notes | ||
| 2023/01/23 | DESK-XZ7-L-1.0.1 release | ||
Quad-SPI NOR flash memory[edit | edit source]
Device tree configuration[edit | edit source]
This configuration work for Bora, Boralite and BoraX platforms.
Here below an example of device tree configuration used on standard DAVE's kit for the Bora, Boralite and BoraX Quad-SPI NOR flash:
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>;
};
};
...
...
Linux messages at boot time[edit | edit source]
- bootlog message
[ 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"
- mtd partitions
root@boralite:~# cat /proc/mtd dev: size erasesize name mtd0: 01600000 00020000 "bootbin" mtd1: 00040000 00020000 "ubootenv" mtd2: 1be00000 00020000 "rootfs"
