ath79: add missing patch for kernel 5.10

When adding the patch for the missing register, the patch file for the
testing kernel 5.10 was not included.

Fixes commit fbbad9a9a629 ("ath79: force SGMII SerDes
mode to MAC operation")
Signed-off-by: David Bauer <mail@david-bauer.net>

diff --git a/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch b/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch
new file mode 100644 (file)
index 0000000..bf7cbf2
--- /dev/null
+++ b/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch
@@ -0,0 +1,9 @@
+--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
++++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+@@ -1376,5 +1376,6 @@
+ 
+ #define QCA956X_SGMII_CONFIG_MODE_CTRL_SHIFT  0
+ #define QCA956X_SGMII_CONFIG_MODE_CTRL_MASK   0x7
++#define QCA956X_SGMII_CONFIG_MODE_CTRL_SGMII_MAC      0x2
+ 
+ #endif /* __ASM_MACH_AR71XX_REGS_H */