@@ -41,61 +41,61 @@
/*
* The V3 PCI interface chip in Integrator provides several windows from
* local bus memory into the PCI memory areas. Unfortunately, there
- * are not really enough windows for our usage, therefore we reuse
+ * are not really enough windows for our usage, therefore we reuse
* one of the windows for access to PCI configuration space. The
* memory map is as follows:
- *
+ *
* Local Bus Memory Usage
- *
+ *
* 40000000 - 4FFFFFFF PCI memory. 256M non-prefetchable
* 50000000 - 5FFFFFFF PCI memory. 256M prefetchable
* 60000000 - 60FFFFFF PCI IO. 16M
* 61000000 - 61FFFFFF PCI Configuration. 16M
- *
+ *
* There are three V3 windows, each described by a pair of V3 registers.
* These are LB_BASE0/LB_MAP0, LB_BASE1/LB_MAP1 and LB_BASE2/LB_MAP2.
* Base0 and Base1 can be used for any type of PCI memory access. Base2
* can be used either for PCI I/O or for I20 accesses. By default, uHAL
* uses this only for PCI IO space.
- *
+ *
* Normally these spaces are mapped using the following base registers:
- *
+ *
* Usage Local Bus Memory Base/Map registers used
- *
+ *
* Mem 40000000 - 4FFFFFFF LB_BASE0/LB_MAP0
* Mem 50000000 - 5FFFFFFF LB_BASE1/LB_MAP1
* IO 60000000 - 60FFFFFF LB_BASE2/LB_MAP2
* Cfg 61000000 - 61FFFFFF
- *
+ *
* This means that I20 and PCI configuration space accesses will fail.
- * When PCI configuration accesses are needed (via the uHAL PCI
+ * When PCI configuration accesses are needed (via the uHAL PCI
* configuration space primitives) we must remap the spaces as follows:
- *
+ *
* Usage Local Bus Memory Base/Map registers used
- *
+ *
* Mem 40000000 - 4FFFFFFF LB_BASE0/LB_MAP0
* Mem 50000000 - 5FFFFFFF LB_BASE0/LB_MAP0
* IO 60000000 - 60FFFFFF LB_BASE2/LB_MAP2
* Cfg 61000000 - 61FFFFFF LB_BASE1/LB_MAP1
- *
+ *
* To make this work, the code depends on overlapping windows working.
- * The V3 chip translates an address by checking its range within
+ * The V3 chip translates an address by checking its range within
* each of the BASE/MAP pairs in turn (in ascending register number
* order). It will use the first matching pair. So, for example,
* if the same address is mapped by both LB_BASE0/LB_MAP0 and
- * LB_BASE1/LB_MAP1, the V3 will use the translation from
+ * LB_BASE1/LB_MAP1, the V3 will use the translation from
* LB_BASE0/LB_MAP0.
- *
+ *
* To allow PCI Configuration space access, the code enlarges the
* window mapped by LB_BASE0/LB_MAP0 from 256M to 512M. This occludes
* the windows currently mapped by LB_BASE1/LB_MAP1 so that it can
* be remapped for use by configuration cycles.
- *
- * At the end of the PCI Configuration space accesses,
+ *
+ * At the end of the PCI Configuration space accesses,
* LB_BASE1/LB_MAP1 is reset to map PCI Memory. Finally the window
* mapped by LB_BASE0/LB_MAP0 is reduced in size from 512M to 256M to
* reveal the now restored LB_BASE1/LB_MAP1 window.
- *
+ *
* NOTE: We do not set up I2O mapping. I suspect that this is only
* for an intelligent (target) device. Using I2O disables most of
* the mappings into PCI memory.
@@ -127,8 +127,8 @@
*
* returns: configuration address to play on the PCI bus
*
- * To generate the appropriate PCI configuration cycles in the PCI
- * configuration address space, you present the V3 with the following pattern
+ * To generate the appropriate PCI configuration cycles in the PCI
+ * configuration address space, you present the V3 with the following pattern
* (which is very nearly a type 1 (except that the lower two bits are 00 and
* not 01). In order for this mapping to work you need to set up one of
* the local to PCI aperatures to 16Mbytes in length translating to
@@ -138,7 +138,7 @@
*
* Type 0:
*
- * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1
+ * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1
* 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0|
@@ -150,7 +150,7 @@
*
* Type 1:
*
- * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1
+ * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1
* 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
@@ -161,7 +161,7 @@
* 15:11 Device number (5 bits)
* 10:8 function number
* 7:2 register number
- *
+ *
*/
static DEFINE_RAW_SPINLOCK(v3_lock);