MIPS: PCMCIA: new socket driver for Au1000 demoboards.

New PCMCIA socket driver for all Db/Pb1xxx boards (except Pb1000),
which replaces au1000_db1x00.c and (most of) au1000_pb1x00.c.
Notable improvements:
        - supports Db1000, DB/PB1100/1500/1550/1200.
        - support for carddetect and statuschange IRQs.
        - pcmcia socket mem/io/attr areas and irqs passed through
          platform resource information.
        - doesn't freeze system during card insertion/ejection like
          the one it replaces.
        - boardtype is automatically detected using BCSR ID register.

Run-tested on the DB1200.

Cc: Linux-PCMCIA <linux-pcmcia@lists.infradead.org>
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index 05078224e933..fceeca883359 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -1724,6 +1724,20 @@ enum soc_au1200_ints {
 
 #endif
 
+/*
+ * All Au1xx0 SOCs have a PCMCIA controller.
+ * We setup our 32-bit pseudo addresses to be equal to the
+ * 36-bit addr >> 4, to make it easier to check the address
+ * and fix it.
+ * The PCMCIA socket 0 physical attribute address is 0xF 4000 0000.
+ * The pseudo address we use is 0xF400 0000. Any address over
+ * 0xF400 0000 is a PCMCIA pseudo address.
+ */
+#define PCMCIA_IO_PSEUDO_PHYS	(PCMCIA_IO_PHYS_ADDR >> 4)
+#define PCMCIA_ATTR_PSEUDO_PHYS	(PCMCIA_ATTR_PHYS_ADDR >> 4)
+#define PCMCIA_MEM_PSEUDO_PHYS	(PCMCIA_MEM_PHYS_ADDR >> 4)
+#define PCMCIA_PSEUDO_END	(0xffffffff)
+
 #ifndef _LANGUAGE_ASSEMBLY
 typedef volatile struct {
 	/* 0x0000 */ u32 toytrim;