Merge tag 'mips-pull-2019-05-24' of git://git.denx.de/u-boot-mips

- mtmips: network stability fixes for gardena-smart-gateway
- mtmips: enable CONFIG_USE_PREBOOT and CONFIG_CMD_WDT

arch/mips/Kconfig

@@ -84,13 +84,13 @@ config ARCH_MTMIPS
 	select DM_SERIAL
 	imply DM_SPI
 	imply DM_SPI_FLASH
-	select ARCH_MISC_INIT
 	select MIPS_TUNE_24KC
 	select OF_CONTROL
 	select ROM_EXCEPTION_VECTORS
 	select SUPPORTS_CPU_MIPS32_R1
 	select SUPPORTS_CPU_MIPS32_R2
 	select SUPPORTS_LITTLE_ENDIAN
+	select SYS_MALLOC_CLEAR_ON_INIT
 	select SYSRESET
 
 config ARCH_JZ47XX

arch/mips/mach-mtmips/cpu.c

@@ -68,18 +68,3 @@ int print_cpuinfo(void)
 
 	return 0;
 }
-
-int arch_misc_init(void)
-{
-	/*
-	 * It has been noticed, that sometimes the d-cache is not in a
-	 * "clean-state" when U-Boot is running on MT7688. This was
-	 * detected when using the ethernet driver (which uses d-cache)
-	 * and a TFTP command does not complete. Flushing the complete
-	 * d-cache (again?) here seems to fix this issue.
-	 */
-	flush_dcache_range(gd->bd->bi_memstart,
-			   gd->bd->bi_memstart + gd->ram_size - 1);
-
-	return 0;
-}