treewide: remove files for building 5.10 kernel

[openwrt/openwrt.git] / target / linux / ramips / patches-5.10 / 325-mt7621-fix-memory-detect.patch

diff --git a/target/linux/ramips/patches-5.10/325-mt7621-fix-memory-detect.patch b/target/linux/ramips/patches-5.10/325-mt7621-fix-memory-detect.patch
deleted file mode 100644 (file)
index ad072ec..0000000
--- a/target/linux/ramips/patches-5.10/325-mt7621-fix-memory-detect.patch
+++ /dev/null
@@ -1,58 +0,0 @@
---- a/arch/mips/ralink/mt7621.c
-+++ b/arch/mips/ralink/mt7621.c
-@@ -56,7 +56,9 @@
- #define MT7621_GPIO_MODE_SDHCI_SHIFT  18
- #define MT7621_GPIO_MODE_SDHCI_GPIO   1
- 
--static void *detect_magic __initdata = detect_memory_region;
-+#define MT7621_MEM_TEST_PATTERN         0xaa5555aa
-+
-+static u32 detect_magic __initdata;
- 
- static struct rt2880_pmx_func uart1_grp[] =  { FUNC("uart1", 0, 1, 2) };
- static struct rt2880_pmx_func i2c_grp[] =  { FUNC("i2c", 0, 3, 2) };
-@@ -142,24 +144,32 @@ static struct clk *__init mt7621_add_sys
-       return clk;
- }
- 
-+static bool __init mt7621_addr_wraparound_test(phys_addr_t size)
-+{
-+      void *dm = (void *)KSEG1ADDR(&detect_magic);
-+      if (CPHYSADDR(dm + size) >= MT7621_LOWMEM_MAX_SIZE)
-+              return true;
-+      __raw_writel(MT7621_MEM_TEST_PATTERN, dm);
-+      if (__raw_readl(dm) != __raw_readl(dm + size))
-+              return false;
-+      __raw_writel(!MT7621_MEM_TEST_PATTERN, dm);
-+      return __raw_readl(dm) == __raw_readl(dm + size);
-+}
-+
- void __init mt7621_memory_detect(void)
- {
--      void *dm = &detect_magic;
-       phys_addr_t size;
- 
--      for (size = 32 * SZ_1M; size < 256 * SZ_1M; size <<= 1) {
--              if (!__builtin_memcmp(dm, dm + size, sizeof(detect_magic)))
--                      break;
-+      for (size = 32 * SZ_1M; size <= 256 * SZ_1M; size <<= 1) {
-+              if (mt7621_addr_wraparound_test(size)) {
-+                      memblock_add(MT7621_LOWMEM_BASE, size);
-+                      return;
-+              }
-       }
- 
--      if ((size == 256 * SZ_1M) &&
--          (CPHYSADDR(dm + size) < MT7621_LOWMEM_MAX_SIZE) &&
--          __builtin_memcmp(dm, dm + size, sizeof(detect_magic))) {
--              memblock_add(MT7621_LOWMEM_BASE, MT7621_LOWMEM_MAX_SIZE);
--              memblock_add(MT7621_HIGHMEM_BASE, MT7621_HIGHMEM_SIZE);
--      } else {
--              memblock_add(MT7621_LOWMEM_BASE, size);
--      }
-+      /* addr doesn't wrap around at dm + 256M, assume 512M memory. */
-+      memblock_add(MT7621_LOWMEM_BASE, MT7621_LOWMEM_MAX_SIZE);
-+      memblock_add(MT7621_HIGHMEM_BASE, MT7621_HIGHMEM_SIZE);
- }
- 
- void __init ralink_clk_init(void)