diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-09-04 15:01:37 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-09-04 15:01:37 +0200 |
| commit | 863e99a8c1ea2b0391491904297f57a0f6a1fdd6 (patch) | |
| tree | 0e7789f83c0ba3a1bc3c19d3ccf5ea6f84f19db6 /drivers/scsi/arcmsr/arcmsr_hba.c | |
| parent | dd9bf78040fa0da4cecc228e1682b9682b8cb180 (diff) | |
| parent | a849088aa1552b1a28eea3daff599ee22a734ae3 (diff) | |
Merge commit 'a849088aa1' from rmk/fixes into cleanup/io-pci
As Stephen Rothwell reports, a849088aa155 ("ARM: Fix ioremap() of
address zero") from the arm-current tree and commit c2794437091a ("ARM:
Add fixed PCI i/o mapping") from the arm-soc tree conflict in
a nontrivial way in arch/arm/mm/mmu.c.
Rob Herring explains:
The PCI i/o reserved area has a dummy physical address of 0 and
needs to be skipped by ioremap searches. So we don't set
VM_ARM_STATIC_MAPPING to prevent matches by ioremap. The vm_struct
settings don't really matter when we do the real mapping of the
i/o space.
Since commit a849088aa155 is at the start of the fixes branch
in the arm tree, we can merge it into the branch that contains
the other ioremap changes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/scsi/arcmsr/arcmsr_hba.c')
| -rw-r--r-- | drivers/scsi/arcmsr/arcmsr_hba.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index cbde1dca45a..def24a1079a 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -2821,7 +2821,7 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb) int i, count = 0; struct MessageUnit_A __iomem *pmuA = acb->pmuA; struct MessageUnit_C __iomem *pmuC = acb->pmuC; - u32 temp = 0; + /* backup pci config data */ printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no); for (i = 0; i < 64; i++) { @@ -2839,7 +2839,7 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb) writel(0x2, &pmuC->write_sequence); writel(0x7, &pmuC->write_sequence); writel(0xD, &pmuC->write_sequence); - } while ((((temp = readl(&pmuC->host_diagnostic)) | ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5)); + } while (((readl(&pmuC->host_diagnostic) & ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5)); writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic); } else { pci_write_config_byte(acb->pdev, 0x84, 0x20); |