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authorAaro Koskinen <aaro.koskinen@iki.fi>2009-07-31 12:16:21 +0300
committerDan Williams <dan.j.williams@intel.com>2009-08-18 13:48:35 -0700
commit5b9eda3313b678f20f2bec08e8173f93e85f6c14 (patch)
tree13cf97fa4901f5c32446564cb914fce6947a8cee /arch
parent9e2a7e6f5f1091965c78e01e87af05607bbf937f (diff)
downloadop-kernel-dev-5b9eda3313b678f20f2bec08e8173f93e85f6c14.zip
op-kernel-dev-5b9eda3313b678f20f2bec08e8173f93e85f6c14.tar.gz
iop3xx: ATU and PCI memory configuration corrected
There are two 64 MB outbound memory windows at bus addresses 0x80000000..0x83ffffff and 0x84000000..0x87ffffff for PCI memory. Currently, on iop32x, only the lower window is available for allocations, limiting the available space to 64 MB. On iop33x the full 128 MB can be allocated, but the translation value is wrong for the upper window. The patch enables the full 128 MB space on iop32x and corrects the initialization of OMWTVR1. Redundant definitions are deleted. Tested using a Thecus N2100 board with a graphics adapter in the expansion slot. Both windows are in use: 00:05.0 VGA compatible controller: XGI Technology Inc. (eXtreme Graphics Innovation) Volari Z7 (prog-if 00 [VGA controller]) [...] Region 0: Memory at 80000000 (32-bit, prefetchable) [size=64M] Region 1: Memory at 84080000 (32-bit, non-prefetchable) [size=256K] Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Lennert Buytenhek <kernel@wantstofly.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/hardware/iop3xx.h1
-rw-r--r--arch/arm/mach-iop32x/include/mach/iop32x.h2
-rw-r--r--arch/arm/mach-iop33x/include/mach/iop33x.h2
-rw-r--r--arch/arm/plat-iop/pci.c3
4 files changed, 3 insertions, 5 deletions
diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h
index 4b8e7f5..8d60ad26 100644
--- a/arch/arm/include/asm/hardware/iop3xx.h
+++ b/arch/arm/include/asm/hardware/iop3xx.h
@@ -215,6 +215,7 @@ extern int iop3xx_get_init_atu(void);
* IOP3XX I/O and Mem space regions for PCI autoconfiguration
*/
#define IOP3XX_PCI_LOWER_MEM_PA 0x80000000
+#define IOP3XX_PCI_MEM_WINDOW_SIZE 0x08000000
#define IOP3XX_PCI_IO_WINDOW_SIZE 0x00010000
#define IOP3XX_PCI_LOWER_IO_PA 0x90000000
diff --git a/arch/arm/mach-iop32x/include/mach/iop32x.h b/arch/arm/mach-iop32x/include/mach/iop32x.h
index abd9eb4..941f363 100644
--- a/arch/arm/mach-iop32x/include/mach/iop32x.h
+++ b/arch/arm/mach-iop32x/include/mach/iop32x.h
@@ -31,7 +31,5 @@
#define IOP32X_MAX_RAM_SIZE 0x40000000UL
#define IOP3XX_MAX_RAM_SIZE IOP32X_MAX_RAM_SIZE
#define IOP3XX_PCI_LOWER_MEM_BA 0x80000000
-#define IOP32X_PCI_MEM_WINDOW_SIZE 0x04000000
-#define IOP3XX_PCI_MEM_WINDOW_SIZE IOP32X_PCI_MEM_WINDOW_SIZE
#endif
diff --git a/arch/arm/mach-iop33x/include/mach/iop33x.h b/arch/arm/mach-iop33x/include/mach/iop33x.h
index 2456731..a89c0a2 100644
--- a/arch/arm/mach-iop33x/include/mach/iop33x.h
+++ b/arch/arm/mach-iop33x/include/mach/iop33x.h
@@ -36,8 +36,6 @@
#define IOP33X_MAX_RAM_SIZE 0x80000000UL
#define IOP3XX_MAX_RAM_SIZE IOP33X_MAX_RAM_SIZE
#define IOP3XX_PCI_LOWER_MEM_BA (PHYS_OFFSET + IOP33X_MAX_RAM_SIZE)
-#define IOP33X_PCI_MEM_WINDOW_SIZE 0x08000000
-#define IOP3XX_PCI_MEM_WINDOW_SIZE IOP33X_PCI_MEM_WINDOW_SIZE
#endif
diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c
index 77fa7cc..ce31f31 100644
--- a/arch/arm/plat-iop/pci.c
+++ b/arch/arm/plat-iop/pci.c
@@ -257,7 +257,8 @@ void __init iop3xx_atu_setup(void)
*IOP3XX_OUMWTVR0 = 0;
/* Outbound window 1 */
- *IOP3XX_OMWTVR1 = IOP3XX_PCI_LOWER_MEM_BA + IOP3XX_PCI_MEM_WINDOW_SIZE;
+ *IOP3XX_OMWTVR1 = IOP3XX_PCI_LOWER_MEM_BA +
+ IOP3XX_PCI_MEM_WINDOW_SIZE / 2;
*IOP3XX_OUMWTVR1 = 0;
/* BAR 3 ( Disabled ) */
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