From 36e9e1ab594519972b0b468aec9b8e9591ddd0ac Mon Sep 17 00:00:00 2001 From: Mihai Sain Date: Tue, 29 Apr 2025 09:45:47 +0300 Subject: [PATCH] ARM: dts: microchip: sama7g54_curiosity: Add fixed-partitions for spi-nor flash Add fixed-partitions for spi-nor flash to match the at91 boot flow and layout of the nand flash. Partitions can be listed from /proc/mtd: [root@sama7g54 ~]$ cat /proc/mtd | grep qspi mtd6: 00040000 00001000 "qspi1: at91bootstrap" mtd7: 00100000 00001000 "qspi1: u-boot" mtd8: 00040000 00001000 "qspi1: u-boot env" mtd9: 00080000 00001000 "qspi1: device tree" mtd10: 00600000 00001000 "qspi1: kernel" [root@sama7g54 ~]$ mtdinfo /dev/mtd10 mtd10 Name: qspi1: kernel Type: nor Eraseblock size: 4096 bytes, 4.0 KiB Amount of eraseblocks: 1536 (6291456 bytes, 6.0 MiB) Minimum input/output unit size: 1 byte Sub-page size: 1 byte Character device major/minor: 90:20 Bad blocks are allowed: false Device is writable: true Signed-off-by: Mihai Sain Link: https://lore.kernel.org/r/20250429064547.5807-1-mihai.sain@microchip.com Signed-off-by: Claudiu Beznea --- .../dts/microchip/at91-sama7g54_curiosity.dts | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts index 2dec2218f32c..eb5f27ce1942 100644 --- a/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts @@ -369,6 +369,38 @@ spi-tx-bus-width = <4>; spi-rx-bus-width = <4>; m25p,fast-read; + label = "at91-qspi"; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + at91bootstrap@0 { + label = "qspi1: at91bootstrap"; + reg = <0x0 0x40000>; + }; + + bootloader@40000 { + label = "qspi1: u-boot"; + reg = <0x40000 0x100000>; + }; + + bootloaderenv@140000 { + label = "qspi1: u-boot env"; + reg = <0x140000 0x40000>; + }; + + dtb@180000 { + label = "qspi1: device tree"; + reg = <0x180000 0x80000>; + }; + + kernel@200000 { + label = "qspi1: kernel"; + reg = <0x200000 0x600000>; + }; + }; }; }; -- 2.50.1