[PATCH] imx8mm_beacon/imx8mn_beacon: Update build instructions

[Adam Ford]

With binman generating flash.bin, it's not longer necessary to
specify either the location of ATF nor is it necessary to
specify building flash.bin, so let's update the build instructions
to remove those.  While in here, update the revision of ATF and
DDR firmware so both Mini and Nano reference the same revision.

Signed-off-by: Adam Ford <aford173 at gmail.com>

diff --git a/board/beacon/imx8mm/README b/board/beacon/imx8mm/README
index 03d9412f0d..200549d924 100644
--- a/board/beacon/imx8mm/README
+++ b/board/beacon/imx8mm/README
@@ -12,21 +12,21 @@ Get and Build the ARM Trusted firmware
 Note: $(srctree) is U-Boot source directory
 
 $ git clone https://source.codeaurora.org/external/imx/imx-atf
-$ git checkout imx_5.4.70_2.3.0
+$ git checkout lf_v2.4
 $ make PLAT=imx8mm bl31 CROSS_COMPILE=aarch64-linux-gnu-
 $ cp build/imx8mm/release/bl31.bin $(srctree)
 
 Get the DDR firmware
 ====================
-$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.5.bin
-$ chmod +x firmware-imx-8.5.bin
-$ ./firmware-imx-8.5
-$ cp firmware-imx-8.5/firmware/ddr/synopsys/lpddr4*.bin $(srctree)
+$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.9.bin
+$ chmod +x firmware-imx-8.9.bin
+$ ./firmware-imx-8.9
+$ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin $(srctree)
 
 Build U-Boot
 ============
 $ make imx8mm_beacon_defconfig
-$ make flash.bin CROSS_COMPILE=aarch64-linux-gnu-
+$ make CROSS_COMPILE=aarch64-linux-gnu-
 
 Burn U-Boot to microSD Card
 ===========================
diff --git a/board/beacon/imx8mn/README b/board/beacon/imx8mn/README
index a9eddd4e64..7e5d1545e6 100644
--- a/board/beacon/imx8mn/README
+++ b/board/beacon/imx8mn/README
@@ -12,7 +12,7 @@ Get and Build the ARM Trusted firmware
 Note: $(srctree) is U-Boot source directory
 
 $ git clone https://source.codeaurora.org/external/imx/imx-atf
-$ git checkout imx_5.4.47_2.2.0
+$ git checkout lf_v2.4
 $ make PLAT=imx8mn bl31 CROSS_COMPILE=aarch64-linux-gnu-
 $ cp build/imx8mm/release/bl31.bin $(srctree)
 
@@ -26,7 +26,7 @@ $ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin $(srctree)
 Build U-Boot
 ============
 $ make imx8mn_beacon_defconfig
-$ make flash.bin CROSS_COMPILE=aarch64-linux-gnu- ATF_LOAD_ADDR=0x960000
+$ make CROSS_COMPILE=aarch64-linux-gnu-
 
 Burn U-Boot to microSD Card
 ===========================
-- 
2.32.0