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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 10:18:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 10:18:22 -0700
commit60e76bb8a4e4c5398ea9053535e1fd0c9d6bb06e (patch)
tree727affce0eabd1724d6a4613b31ed805a4fa6db4 /arch/m68k
parentdbf83817315d9ce93b3e5b1c83a167f537245bd8 (diff)
parentfde87ebf1daa8d96e4412aa06536da4b55103e02 (diff)
Merge tag 'm68knommu-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer: "Fixes include: - cleanup compiler warnings (IO access functions and unused variables) - ColdFire v3 cache control fix - ColdFire MMU comment cleanup - switch to using asm-generic cmpxchg_local() - stmark platform updates" * tag 'm68knommu-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: stmark2: enable edma support for dspi m68k: use asm-generic cmpxchg_local() m68k: mcfmmu: remove stale part of comment about steal_context m68knommu: fix overwriting of bits in ColdFire V3 cache control m68k: fix ColdFire mmu init compile warning m68knommu: fix use of cpu_to_le() on IO access m68knommu: __force type casts for raw IO access m68k: stmark2: defconfig updates
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/coldfire/stmark2.c5
-rw-r--r--arch/m68k/configs/stmark2_defconfig47
-rw-r--r--arch/m68k/include/asm/cmpxchg.h8
-rw-r--r--arch/m68k/include/asm/io_no.h20
-rw-r--r--arch/m68k/include/asm/m53xxacr.h6
-rw-r--r--arch/m68k/mm/mcfmmu.c6
6 files changed, 45 insertions, 47 deletions
diff --git a/arch/m68k/coldfire/stmark2.c b/arch/m68k/coldfire/stmark2.c
index a8d2b3d172f9..8b5af9c83244 100644
--- a/arch/m68k/coldfire/stmark2.c
+++ b/arch/m68k/coldfire/stmark2.c
@@ -13,6 +13,7 @@
#include <linux/spi/spi.h>
#include <linux/spi/spi-fsl-dspi.h>
#include <linux/spi/flash.h>
+#include <linux/dma-mapping.h>
#include <asm/mcfsim.h>
/*
@@ -78,6 +79,8 @@ static struct resource dspi_spi0_resource[] = {
},
};
+static u64 stmark2_dspi_mask = DMA_BIT_MASK(32);
+
/* SPI controller, id = bus number */
static struct platform_device dspi_spi0_device = {
.name = "fsl-dspi",
@@ -86,6 +89,8 @@ static struct platform_device dspi_spi0_device = {
.resource = dspi_spi0_resource,
.dev = {
.platform_data = &dspi_spi0_info,
+ .dma_mask = &stmark2_dspi_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
};
diff --git a/arch/m68k/configs/stmark2_defconfig b/arch/m68k/configs/stmark2_defconfig
index 2b746f55f419..d92306472fce 100644
--- a/arch/m68k/configs/stmark2_defconfig
+++ b/arch/m68k/configs/stmark2_defconfig
@@ -1,38 +1,33 @@
CONFIG_LOCALVERSION="stmark2-001"
CONFIG_DEFAULT_HOSTNAME="stmark2"
CONFIG_SYSVIPC=y
-# CONFIG_FHANDLE is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_NAMESPACES=y
CONFIG_BLK_DEV_INITRD=y
-# CONFIG_RD_BZIP2 is not set
-# CONFIG_RD_LZMA is not set
-# CONFIG_RD_XZ is not set
-# CONFIG_RD_LZO is not set
-# CONFIG_RD_LZ4 is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_FHANDLE is not set
# CONFIG_AIO is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_MEMBARRIER is not set
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_BLK_CMDLINE_PARSER=y
-# CONFIG_MMU is not set
+CONFIG_COLDFIRE=y
CONFIG_M5441x=y
CONFIG_CLOCK_FREQ=240000000
CONFIG_STMARK2=y
+CONFIG_UBOOT=y
CONFIG_RAMBASE=0x40000000
CONFIG_RAMSIZE=0x8000000
CONFIG_VECTORBASE=0x40000000
CONFIG_KERNELBASE=0x40001000
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_BLK_CMDLINE_PARSER=y
CONFIG_BINFMT_FLAT=y
+CONFIG_BINFMT_ZFLAT=y
CONFIG_BINFMT_MISC=y
-# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
# CONFIG_ALLOW_DEV_COREDUMP is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
@@ -65,24 +60,36 @@ CONFIG_DEBUG_GPIO=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_HWMON is not set
-# CONFIG_RC_CORE is not set
# CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set
+CONFIG_MMC=y
+CONFIG_MMC_DEBUG=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SDHCI_ESDHC_MCF=y
+CONFIG_DMADEVICES=y
+CONFIG_MCF_EDMA=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
# CONFIG_FILE_LOCKING is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
+CONFIG_OVERLAY_FS=y
CONFIG_FSCACHE=y
# CONFIG_PROC_SYSCTL is not set
+CONFIG_CRAMFS=y
+CONFIG_SQUASHFS=y
+CONFIG_ROMFS_FS=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+# CONFIG_CRYPTO_HW is not set
CONFIG_PRINTK_TIME=y
+# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_SLUB_DEBUG_ON=y
CONFIG_PANIC_ON_OOPS=y
# CONFIG_SCHED_DEBUG is not set
-# CONFIG_DEBUG_BUGVERBOSE is not set
-CONFIG_BOOTPARAM=y
-CONFIG_BOOTPARAM_STRING="console=ttyS0,115200 root=/dev/ram0 rw rootfstype=ramfs rdinit=/bin/init devtmpfs.mount=1"
-CONFIG_CRYPTO=y
-# CONFIG_CRYPTO_ECHAINIV is not set
-CONFIG_CRYPTO_ANSI_CPRNG=y
-# CONFIG_CRYPTO_HW is not set
-CONFIG_CRC16=y
diff --git a/arch/m68k/include/asm/cmpxchg.h b/arch/m68k/include/asm/cmpxchg.h
index 38e1d7acc44d..3a3bdcfcd375 100644
--- a/arch/m68k/include/asm/cmpxchg.h
+++ b/arch/m68k/include/asm/cmpxchg.h
@@ -129,14 +129,6 @@ static inline unsigned long __cmpxchg(volatile void *p, unsigned long old,
#else
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
- (unsigned long)(n), sizeof(*(ptr))))
-
#include <asm-generic/cmpxchg.h>
#endif
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index 0498192e1d98..2c96e8480173 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -14,15 +14,15 @@
* that behavior here first before we include asm-generic/io.h.
*/
#define __raw_readb(addr) \
- ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
+ ({ u8 __v = (*(__force volatile u8 *) (addr)); __v; })
#define __raw_readw(addr) \
- ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
+ ({ u16 __v = (*(__force volatile u16 *) (addr)); __v; })
#define __raw_readl(addr) \
- ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
+ ({ u32 __v = (*(__force volatile u32 *) (addr)); __v; })
-#define __raw_writeb(b, addr) (void)((*(volatile unsigned char *) (addr)) = (b))
-#define __raw_writew(b, addr) (void)((*(volatile unsigned short *) (addr)) = (b))
-#define __raw_writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b))
+#define __raw_writeb(b, addr) (void)((*(__force volatile u8 *) (addr)) = (b))
+#define __raw_writew(b, addr) (void)((*(__force volatile u16 *) (addr)) = (b))
+#define __raw_writel(b, addr) (void)((*(__force volatile u32 *) (addr)) = (b))
#if defined(CONFIG_COLDFIRE)
/*
@@ -67,7 +67,7 @@ static inline u16 readw(const volatile void __iomem *addr)
{
if (cf_internalio(addr))
return __raw_readw(addr);
- return __le16_to_cpu(__raw_readw(addr));
+ return swab16(__raw_readw(addr));
}
#define readl readl
@@ -75,7 +75,7 @@ static inline u32 readl(const volatile void __iomem *addr)
{
if (cf_internalio(addr))
return __raw_readl(addr);
- return __le32_to_cpu(__raw_readl(addr));
+ return swab32(__raw_readl(addr));
}
#define writew writew
@@ -84,7 +84,7 @@ static inline void writew(u16 value, volatile void __iomem *addr)
if (cf_internalio(addr))
__raw_writew(value, addr);
else
- __raw_writew(__cpu_to_le16(value), addr);
+ __raw_writew(swab16(value), addr);
}
#define writel writel
@@ -93,7 +93,7 @@ static inline void writel(u32 value, volatile void __iomem *addr)
if (cf_internalio(addr))
__raw_writel(value, addr);
else
- __raw_writel(__cpu_to_le32(value), addr);
+ __raw_writel(swab32(value), addr);
}
#else
diff --git a/arch/m68k/include/asm/m53xxacr.h b/arch/m68k/include/asm/m53xxacr.h
index 9138a624c5c8..692f90e7fecc 100644
--- a/arch/m68k/include/asm/m53xxacr.h
+++ b/arch/m68k/include/asm/m53xxacr.h
@@ -89,9 +89,9 @@
* coherency though in all cases. And for copyback caches we will need
* to push cached data as well.
*/
-#define CACHE_INIT CACR_CINVA
-#define CACHE_INVALIDATE CACR_CINVA
-#define CACHE_INVALIDATED CACR_CINVA
+#define CACHE_INIT (CACHE_MODE + CACR_CINVA - CACR_EC)
+#define CACHE_INVALIDATE (CACHE_MODE + CACR_CINVA)
+#define CACHE_INVALIDATED (CACHE_MODE + CACR_CINVA)
#define ACR0_MODE ((CONFIG_RAMBASE & 0xff000000) + \
(0x000f0000) + \
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index 7d04210d34f0..a3e7e4e70dd5 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -39,7 +39,6 @@ void __init paging_init(void)
unsigned long address, size;
unsigned long next_pgtable, bootmem_end;
unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
- enum zone_type zone;
int i;
empty_zero_page = (void *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
@@ -214,11 +213,6 @@ void __init cf_mmu_context_init(void)
/*
* Steal a context from a task that has one at the moment.
- * This is only used on 8xx and 4xx and we presently assume that
- * they don't do SMP. If they do then thicfpgalloc.hs will have to check
- * whether the MM we steal is in use.
- * We also assume that this is only used on systems that don't
- * use an MMU hash table - this is true for 8xx and 4xx.
* This isn't an LRU system, it just frees up each context in
* turn (sort-of pseudo-random replacement :). This would be the
* place to implement an LRU scheme if anyone was motivated to do it.