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authorIlya Lipnitskiy <ilya.lipnitskiy@gmail.com>2021-04-03 19:26:11 -0700
committerChuanhong Guo <gch981213@gmail.com>2021-04-15 00:00:54 +0800
commit5f07c579f8c2eeb8056628f7b6a8732bf0f8d492 (patch)
tree45d92915646e018e78f9c7d8a7c37ed3b91b6f32 /target
parentf99c9cd9c4d4c49a676d678327546fd41690fe2a (diff)
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ramips: rt288x: replace hack with a kconfig change
Use an existing kernel config symbol to fix devices whose ramstart is not zero. See upstream patch message for more details. Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: Tobias Wolf <dev-NTEO@vplace.de> Cc: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'target')
-rw-r--r--target/linux/ramips/patches-5.10/201-MIPS-ralink-rt288x-select-MIPS_AUTO_PFN_OFFSET.patch32
-rw-r--r--target/linux/ramips/patches-5.10/310-MIPS-Fix-memory-reservation-in-bootmem_init-for-cert.patch45
2 files changed, 32 insertions, 45 deletions
diff --git a/target/linux/ramips/patches-5.10/201-MIPS-ralink-rt288x-select-MIPS_AUTO_PFN_OFFSET.patch b/target/linux/ramips/patches-5.10/201-MIPS-ralink-rt288x-select-MIPS_AUTO_PFN_OFFSET.patch
new file mode 100644
index 0000000000..2b6bfd2b7b
--- /dev/null
+++ b/target/linux/ramips/patches-5.10/201-MIPS-ralink-rt288x-select-MIPS_AUTO_PFN_OFFSET.patch
@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+Date: Sat, 3 Apr 2021 18:51:44 -0700
+Subject: [PATCH] MIPS: ralink: rt288x: select MIPS_AUTO_PFN_OFFSET
+
+RT288X systems may have a non-zero ramstart causing problems with memory
+reservations and boot hangs, as well as messages like:
+ Wasting 1048576 bytes for tracking 32768 unused pages
+
+Both are alleviated by selecting MIPS_AUTO_PFN_OFFSET for such
+platforms.
+
+Tested on a Belkin F5D8235 v1 RT2880 device.
+
+Link: https://lore.kernel.org/linux-mips/20180820233111.xww5232dxbuouf4n@pburton-laptop/
+
+Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+Cc: Mike Rapoport <rppt@kernel.org>
+---
+ arch/mips/ralink/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/mips/ralink/Kconfig
++++ b/arch/mips/ralink/Kconfig
+@@ -26,6 +26,7 @@ choice
+
+ config SOC_RT288X
+ bool "RT288x"
++ select MIPS_AUTO_PFN_OFFSET
+ select MIPS_L1_CACHE_SHIFT_4
+ select HAVE_LEGACY_CLK
+ select HAVE_PCI
diff --git a/target/linux/ramips/patches-5.10/310-MIPS-Fix-memory-reservation-in-bootmem_init-for-cert.patch b/target/linux/ramips/patches-5.10/310-MIPS-Fix-memory-reservation-in-bootmem_init-for-cert.patch
deleted file mode 100644
index 987ffbf3c4..0000000000
--- a/target/linux/ramips/patches-5.10/310-MIPS-Fix-memory-reservation-in-bootmem_init-for-cert.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From: Tobias Wolf <dev-NTEO@vplace.de>
-Subject: [v2] MIPS: Fix memory reservation in bootmem_init for certain non-usermem setups
-
-Commit 67a3ba25aa95 ("MIPS: Fix incorrect mem=X@Y handling") introduced a new
-issue for rt288x where "PHYS_OFFSET" is 0x0 but the calculated "ramstart" is
-not. As the prerequisite of custom memory map has been removed, this results
-in the full memory range of 0x0 - 0x8000000 to be marked as reserved for this
-platform.
-
-v2: Correctly compare that usermem is not null.
-
-This patch adds the originally intended prerequisite again.
-
-Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
----
-
---- a/arch/mips/kernel/setup.c
-+++ b/arch/mips/kernel/setup.c
-@@ -249,6 +249,8 @@ static unsigned long __init init_initrd(
- * Initialize the bootmem allocator. It also setup initrd related data
- * if needed.
- */
-+static int usermem __initdata;
-+
- #if defined(CONFIG_SGI_IP27) || (defined(CONFIG_CPU_LOONGSON64) && defined(CONFIG_NUMA))
-
- static void __init bootmem_init(void)
-@@ -288,7 +290,7 @@ static void __init bootmem_init(void)
- /*
- * Reserve any memory between the start of RAM and PHYS_OFFSET
- */
-- if (ramstart > PHYS_OFFSET)
-+ if (usermem && ramstart > PHYS_OFFSET)
- memblock_reserve(PHYS_OFFSET, ramstart - PHYS_OFFSET);
-
- if (PFN_UP(ramstart) > ARCH_PFN_OFFSET) {
-@@ -336,8 +338,6 @@ static void __init bootmem_init(void)
-
- #endif /* CONFIG_SGI_IP27 */
-
--static int usermem __initdata;
--
- static int __init early_parse_mem(char *p)
- {
- phys_addr_t start, size;