Add code to support 10 Mbit and 100 Mbit mode for APNE driver.
A new ISA type ISA_TYPE_AG16 dynamically switches the Amiga
ISA inb accessor to word access as required by the 100 Mbit cards.
Patch modified after patch "[PATCH RFC net-next] Amiga PCMCIA
100 MBit card support" submitted to netdev 2018/09/16 by Alex
Kazik <alex@xxxxxxxx>.
Signed-off-by: Michael Schmitz <schmitzmic@xxxxxxxxx>
--
Changes from RFC:
Geert Uytterhoeven:
- rename ISA_TYPE_AG100 to ISA_TYPE_AG16 (16 bit cards)
- move ISA_TYPE_AG16 case inside #ifdef CONFIG_AMIGA_PCMCIA
- change #if defined(CONFIG_APNE_100MBIT) to #ifdef
- fix parentheses in isa_inb() define
- omit comment about compiler optimization
- add ISA_TYPE_AG16 case to isa_delay()
---
arch/m68k/include/asm/io_mm.h | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index 6eae9ec..a965a0e 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -101,6 +101,11 @@
#define ISA_TYPE_Q40 (1)
#define ISA_TYPE_AG (2)
#define ISA_TYPE_ENEC (3)
+#define ISA_TYPE_AG16 (4) /* for 100 MBit APNE card */
+
+#if defined(CONFIG_APNE100MBIT)
+#define MULTI_ISA 1
+#endif
#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
#define ISA_TYPE ISA_TYPE_Q40
@@ -136,6 +141,9 @@ static inline u8 __iomem *isa_itb(unsigned long addr)
case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_IO_B(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
+#ifdef CONFIG_APNE100MBIT
+ case ISA_TYPE_AG16: fallthrough;
+#endif
case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr);
#endif
#ifdef CONFIG_ATARI_ROM_ISA
@@ -155,6 +163,9 @@ static inline u16 __iomem *isa_itw(unsigned long addr)
case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_IO_W(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
+#ifdef CONFIG_APNE100MBIT
+ case ISA_TYPE_AG16: fallthrough;
+#endif
case ISA_TYPE_AG: return (u16 __iomem *)AG_ISA_IO_W(addr);
#endif
#ifdef CONFIG_ATARI_ROM_ISA
@@ -171,6 +182,9 @@ static inline u32 __iomem *isa_itl(unsigned long addr)
switch(ISA_TYPE)
{
#ifdef CONFIG_AMIGA_PCMCIA
+#ifdef CONFIG_APNE100MBIT
+ case ISA_TYPE_AG16: fallthrough;
+#endif
case ISA_TYPE_AG: return (u32 __iomem *)AG_ISA_IO_W(addr);
#endif
}
@@ -184,6 +198,9 @@ static inline u8 __iomem *isa_mtb(unsigned long addr)
case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_MEM_B(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
+#ifdef CONFIG_APNE100MBIT
+ case ISA_TYPE_AG16: fallthrough;
+#endif
case ISA_TYPE_AG: return (u8 __iomem *)addr;
#endif
#ifdef CONFIG_ATARI_ROM_ISA
@@ -203,6 +220,9 @@ static inline u16 __iomem *isa_mtw(unsigned long addr)
case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_MEM_W(addr);
#endif
#ifdef CONFIG_AMIGA_PCMCIA
+#ifdef CONFIG_APNE100MBIT
+ case ISA_TYPE_AG16: fallthrough;
+#endif
case ISA_TYPE_AG: return (u16 __iomem *)addr;
#endif
#ifdef CONFIG_ATARI_ROM_ISA
@@ -216,13 +236,14 @@ static inline u16 __iomem *isa_mtw(unsigned long addr)
}
-#define isa_inb(port) in_8(isa_itb(port))
#define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
#define isa_inl(port) (ISA_SEX ? in_be32(isa_itl(port)) : in_le32(isa_itl(port)))
#define isa_outb(val,port) out_8(isa_itb(port),(val))
#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
#define isa_outl(val,port) (ISA_SEX ? out_be32(isa_itl(port),(val)) : out_le32(isa_itl(port),(val)))
+#define isa_inb(port) ((ISA_TYPE == ISA_TYPE_AG16) ? ((port) & 1 ? isa_inw((port) - 1) & 0xff : isa_inw(port) >> 8) : in_8(isa_itb(port)))
+
#define isa_readb(p) in_8(isa_mtb((unsigned long)(p)))
#define isa_readw(p) \
(ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
@@ -270,6 +291,9 @@ static inline void isa_delay(void)
case ISA_TYPE_Q40: isa_outb(0,0x80); break;
#endif
#ifdef CONFIG_AMIGA_PCMCIA
+#ifdef CONFIG_APNE100MBIT
+ case ISA_TYPE_AG16: break;
+#endif
case ISA_TYPE_AG: break;
#endif
#ifdef CONFIG_ATARI_ROM_ISA
--
2.7.4
