michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: mspi: add APMemory APS Z8 pSRAM driver

Browse source 
The APS Z8 driver would just support APS51216BA for now.

Signed-off-by: Swift Tian <swift.tian@ambiq.com>
This commit is contained in:
Swift Tian 2025-04-21 12:04:33 +08:00 • committed by Benjamin Cabé
commit 8ef0792eec
11 changed files with 837 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

7
boards/ambiq/apollo510_evb/Kconfig.defconfig
View file

@ -19,4 +19,11 @@ config MSPI_INIT_PRIORITY
endif # MSPI
if MEMC
config MEMC_INIT_PRIORITY
default 50
endif # MEMC
endif # BOARD_APOLLO510_EVB

41
boards/ambiq/apollo510_evb/apollo510_evb.dts
View file

@ -120,6 +120,47 @@
status = "okay";
};
&mspi0 {
pinctrl-0 = <&mspi0_default>;
pinctrl-1 = <&mspi0_sleep>;
pinctrl-2 = <&mspi0_psram>;
pinctrl-names = "default","sleep","psram";
status = "disabled";
zephyr,pm-device-runtime-auto;
ce-gpios = <&gpio192_223 7 GPIO_ACTIVE_LOW>;
cmdq-buffer-location = "SRAM_NO_CACHE";
cmdq-buffer-size = <256>;
ambiq,apmemory;
dqs-support;
aps51216ba: aps_z8@0 {
compatible = "ambiq,mspi-device", "mspi-aps-z8";
size = <DT_SIZE_M(512)>;
reg = <0>;
status = "disabled";
mspi-max-frequency = <125000000>;
mspi-io-mode = "MSPI_IO_MODE_HEX_8_8_16";
mspi-data-rate = "MSPI_DATA_RATE_S_D_D";
mspi-hardware-ce-num = <0>;
mspi-dqs-enable;
read-command = <0x20>;
write-command = <0xA0>;
command-length = "INSTR_1_BYTE";
address-length = "ADDR_4_BYTE";
rx-dummy = <7>;
tx-dummy = <8>;
xip-config = <1 0 DT_SIZE_M(64) 0>;
ce-break-config = <1024 4>;
ambiq,timing-config-mask = <0x62>;
ambiq,timing-config = <8 7 1 0 0 3 10 0>;
zephyr,pm-device-runtime-auto;
};
};
&gpio0_31 {
status = "okay";
};