diff --git a/target/linux/rockchip/image/mmc.bootscript b/target/linux/rockchip/image/mmc.bootscript
index 7fb8edbd40..6ee1dcf9f6 100644
--- a/target/linux/rockchip/image/mmc.bootscript
+++ b/target/linux/rockchip/image/mmc.bootscript
@@ -10,7 +10,7 @@ elif test $stdout = 'serial@ff1a0000' ;
 then serial_addr=',0xff1a0000';
 fi;
 
-setenv bootargs "console=ttyS2,1500000 console=tty1 earlycon=uart8250,mmio32${serial_addr} swiotlb=1 root=PARTUUID=${uuid} rw rootwait";
+setenv bootargs "coherent_pool=2M console=ttyS2,1500000 console=tty1 earlycon=uart8250,mmio32${serial_addr} swiotlb=1 root=PARTUUID=${uuid} rw rootwait";
 
 load mmc ${devnum}:1 ${kernel_addr_r} kernel.img
 
diff --git a/target/linux/rockchip/patches-6.1/911-kernel-dma-adjust-default-coherent_pool-to-2MiB.patch b/target/linux/rockchip/patches-6.1/911-kernel-dma-adjust-default-coherent_pool-to-2MiB.patch
deleted file mode 100644
index 690c85dbb6..0000000000
--- a/target/linux/rockchip/patches-6.1/911-kernel-dma-adjust-default-coherent_pool-to-2MiB.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From 16bdf3e76fec6ddb44f1fcf221139fb39d225031 Mon Sep 17 00:00:00 2001
-From: Igor Pecovnik <igor.pecovnik@gmail.com>
-Date: Sat, 2 Jan 2021 05:23:55 +0000
-Subject: [PATCH] kernel: dma: adjust default coherent_pool to 2MiB
-
----
- kernel/dma/pool.c | 8 +++-----
- 1 file changed, 3 insertions(+), 5 deletions(-)
-
---- a/kernel/dma/pool.c
-+++ b/kernel/dma/pool.c
-@@ -189,13 +189,11 @@ static int __init dma_atomic_pool_init(v
- 	int ret = 0;
- 
- 	/*
--	 * If coherent_pool was not used on the command line, default the pool
--	 * sizes to 128KB per 1GB of memory, min 128KB, max MAX_ORDER-1.
-+	 * Always use 2MiB as default pool size.
-+	 * See: https://forum.armbian.com/topic/4811-uas-mainline-kernel-coherent-pool-memory-size/
- 	 */
- 	if (!atomic_pool_size) {
--		unsigned long pages = totalram_pages() / (SZ_1G / SZ_128K);
--		pages = min_t(unsigned long, pages, MAX_ORDER_NR_PAGES);
--		atomic_pool_size = max_t(size_t, pages << PAGE_SHIFT, SZ_128K);
-+		atomic_pool_size = SZ_2M;
- 	}
- 	INIT_WORK(&atomic_pool_work, atomic_pool_work_fn);
-