5 files changed, 21 insertions, 13 deletions

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 85bc601e9a0d..5f8b0a9e30b3 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -375,6 +375,7 @@ static void __init bootmem_init(void)
         unsigned long reserved_end;
         unsigned long mapstart = ~0UL;
         unsigned long bootmap_size;
+        phys_addr_t ramstart = (phys_addr_t)ULLONG_MAX;
         bool bootmap_valid = false;
         int i;
 
@@ -395,7 +396,8 @@ static void __init bootmem_init(void)
         max_low_pfn = 0;
 
         /*
-         * Find the highest page frame number we have available.
+         * Find the highest page frame number we have available
+         * and the lowest used RAM address
          */
         for (i = 0; i < boot_mem_map.nr_map; i++) {
                 unsigned long start, end;
@@ -407,6 +409,8 @@ static void __init bootmem_init(void)
                 end = PFN_DOWN(boot_mem_map.map[i].addr
                                 + boot_mem_map.map[i].size);
 
+                ramstart = min(ramstart, boot_mem_map.map[i].addr);
+
 #ifndef CONFIG_HIGHMEM
                 /*
                  * Skip highmem here so we get an accurate max_low_pfn if low
@@ -436,6 +440,13 @@ static void __init bootmem_init(void)
                 mapstart = max(reserved_end, start);
         }
 
+        /*
+         * Reserve any memory between the start of RAM and PHYS_OFFSET
+         */
+        if (ramstart > PHYS_OFFSET)
+                add_memory_region(PHYS_OFFSET, ramstart - PHYS_OFFSET,
+                                  BOOT_MEM_RESERVED);
+
         if (min_low_pfn >= max_low_pfn)
                 panic("Incorrect memory mapping !!!");
         if (min_low_pfn > ARCH_PFN_OFFSET) {
@@ -664,9 +675,6 @@ static int __init early_parse_mem(char *p)
 
         add_memory_region(start, size, BOOT_MEM_RAM);
 
-        if (start && start > PHYS_OFFSET)
-                add_memory_region(PHYS_OFFSET, start - PHYS_OFFSET,
-                                BOOT_MEM_RESERVED);
         return 0;
 }
 early_param("mem", early_parse_mem);
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 87dcac2447c8..9d41732a9146 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -572,7 +572,7 @@ asmlinkage void __weak plat_wired_tlb_setup(void)
          */
 }
 
-void __init bmips_cpu_setup(void)
+void bmips_cpu_setup(void)
 {
         void __iomem __maybe_unused *cbr = BMIPS_GET_CBR();
         u32 __maybe_unused cfg;
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 6bf594ace663..8767e45f1b2b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -430,6 +430,8 @@ config SPARC_LEON
         depends on SPARC32
         select USB_EHCI_BIG_ENDIAN_MMIO
         select USB_EHCI_BIG_ENDIAN_DESC
+        select USB_UHCI_BIG_ENDIAN_MMIO
+        select USB_UHCI_BIG_ENDIAN_DESC
         ---help---
           If you say Y here if you are running on a SPARC-LEON processor.
           The LEON processor is a synthesizable VHDL model of the
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index f699abab1787..148f3ee70286 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -19,6 +19,12 @@ config USB_EHCI_BIG_ENDIAN_MMIO
 config USB_EHCI_BIG_ENDIAN_DESC
         bool
 
+config USB_UHCI_BIG_ENDIAN_MMIO
+        bool
+
+config USB_UHCI_BIG_ENDIAN_DESC
+        bool
+
 menuconfig USB_SUPPORT
         bool "USB support"
         depends on HAS_IOMEM
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 6150bed7cfa8..4fcfb3084b36 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -633,14 +633,6 @@ config USB_UHCI_ASPEED
        bool
        default y if ARCH_ASPEED
 
-config USB_UHCI_BIG_ENDIAN_MMIO
-        bool
-        default y if SPARC_LEON
-
-config USB_UHCI_BIG_ENDIAN_DESC
-        bool
-        default y if SPARC_LEON
-
 config USB_FHCI_HCD
         tristate "Freescale QE USB Host Controller support"
         depends on OF_GPIO && QE_GPIO && QUICC_ENGINE