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authorwdenk <wdenk>2004-04-15 23:14:49 +0000
committerwdenk <wdenk>2004-04-15 23:14:49 +0000
commitdb01a2ea991b539ffbd36ab952fcf2e754789a83 (patch)
tree8514a5df0b86fe3315a29fd9068093da43f3b3ca /doc/README.PXA_CF
parentbda6c8aece36f4f21cb041f518d09c26e4fb47eb (diff)
* Patch by Stephen Williams, 01 Apr 2004:
Add support for Picture Elements JSE board * Patch by Christian Pell, 01 Apr 2004: Add CompactFlash support for PXA systems.
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+
+These are brief instructions on how to add support for CF adapters to
+custom designed PXA boards. You need to set the parameters in the
+config file. This should work for most implementations especially if you
+follow the connections of the standard lubbock. Anyway just the block
+marked memory configuration should be touched since the other parameters
+are imposed by the PXA architecture.
+
+#define CONFIG_PXA_PCMCIA 1
+#define CONFIG_PXA_IDE 1
+
+#define CONFIG_PCMCIA_SLOT_A 1
+/* just to keep build system happy */
+
+#define CFG_PCMCIA_MEM_ADDR 0x28000000
+#define CFG_PCMCIA_MEM_SIZE 0x10000000
+
+#define CFG_MECR_VAL 0x00000000
+#define CFG_MCMEM0_VAL 0x00004204
+#define CFG_MCMEM1_VAL 0x00000000
+#define CFG_MCATT0_VAL 0x00010504
+#define CFG_MCATT1_VAL 0x00000000
+#define CFG_MCIO0_VAL 0x00008407
+#define CFG_MCIO1_VAL 0x00000000
+/* memory configuration */
+
+#define CFG_IDE_MAXBUS 1
+/* max. 1 IDE bus */
+#define CFG_IDE_MAXDEVICE 1
+/* max. 1 drive per IDE bus */
+
+#define CFG_ATA_IDE0_OFFSET 0x0000
+
+#define CFG_ATA_BASE_ADDR 0x20000000
+
+/* Offset for data I/O */
+#define CFG_ATA_DATA_OFFSET 0x1f0
+
+/* Offset for normal register accesses */
+#define CFG_ATA_REG_OFFSET 0x1f0
+
+/* Offset for alternate registers */
+#define CFG_ATA_ALT_OFFSET 0x3f0
+
+
+Another important point is that maybe you have to power the pcmcia
+subsystem. This is very board specific, for an example on how to
+do it please search for CONFIG_EXADRON1 in cmd_pcmcia.c
+
+