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Blackfin: Allow bf548 ATAPI to be routed to GPIO
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By default, it is routed to async memory address. In GPIO case,
GPIO peripheral PINs should be requested in advance.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Sonic Zhang authored and Mike Frysinger committed Jun 12, 2009
1 parent ffdf3ec commit 8d5c2f0
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Showing 2 changed files with 52 additions and 19 deletions.
7 changes: 7 additions & 0 deletions arch/blackfin/mach-bf548/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,13 @@ config DEB_DMA_URGENT
help
Treat any DEB1, DEB2 and DEB3 request as Urgent

config BF548_ATAPI_ALTERNATIVE_PORT
bool "BF548 ATAPI alternative port via GPIO"
help
BF548 ATAPI data and address PINs can be routed through
async address or GPIO port F and G. Select y to route it
to GPIO.

comment "Interrupt Priority Assignment"
menu "Priority"

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64 changes: 45 additions & 19 deletions arch/blackfin/mach-bf548/include/mach/portmux.h
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Original file line number Diff line number Diff line change
Expand Up @@ -167,22 +167,42 @@
#define P_PPI0_D13 (P_DEFINED | P_IDENT(GPIO_PF13) | P_FUNCT(0))
#define P_PPI0_D14 (P_DEFINED | P_IDENT(GPIO_PF14) | P_FUNCT(0))
#define P_PPI0_D15 (P_DEFINED | P_IDENT(GPIO_PF15) | P_FUNCT(0))
#define P_ATAPI_D0A (P_DEFINED | P_IDENT(GPIO_PF0) | P_FUNCT(1))
#define P_ATAPI_D1A (P_DEFINED | P_IDENT(GPIO_PF1) | P_FUNCT(1))
#define P_ATAPI_D2A (P_DEFINED | P_IDENT(GPIO_PF2) | P_FUNCT(1))
#define P_ATAPI_D3A (P_DEFINED | P_IDENT(GPIO_PF3) | P_FUNCT(1))
#define P_ATAPI_D4A (P_DEFINED | P_IDENT(GPIO_PF4) | P_FUNCT(1))
#define P_ATAPI_D5A (P_DEFINED | P_IDENT(GPIO_PF5) | P_FUNCT(1))
#define P_ATAPI_D6A (P_DEFINED | P_IDENT(GPIO_PF6) | P_FUNCT(1))
#define P_ATAPI_D7A (P_DEFINED | P_IDENT(GPIO_PF7) | P_FUNCT(1))
#define P_ATAPI_D8A (P_DEFINED | P_IDENT(GPIO_PF8) | P_FUNCT(1))
#define P_ATAPI_D9A (P_DEFINED | P_IDENT(GPIO_PF9) | P_FUNCT(1))
#define P_ATAPI_D10A (P_DEFINED | P_IDENT(GPIO_PF10) | P_FUNCT(1))
#define P_ATAPI_D11A (P_DEFINED | P_IDENT(GPIO_PF11) | P_FUNCT(1))
#define P_ATAPI_D12A (P_DEFINED | P_IDENT(GPIO_PF12) | P_FUNCT(1))
#define P_ATAPI_D13A (P_DEFINED | P_IDENT(GPIO_PF13) | P_FUNCT(1))
#define P_ATAPI_D14A (P_DEFINED | P_IDENT(GPIO_PF14) | P_FUNCT(1))
#define P_ATAPI_D15A (P_DEFINED | P_IDENT(GPIO_PF15) | P_FUNCT(1))

#ifdef CONFIG_BF548_ATAPI_ALTERNATIVE_PORT
# define P_ATAPI_D0A (P_DEFINED | P_IDENT(GPIO_PF0) | P_FUNCT(1))
# define P_ATAPI_D1A (P_DEFINED | P_IDENT(GPIO_PF1) | P_FUNCT(1))
# define P_ATAPI_D2A (P_DEFINED | P_IDENT(GPIO_PF2) | P_FUNCT(1))
# define P_ATAPI_D3A (P_DEFINED | P_IDENT(GPIO_PF3) | P_FUNCT(1))
# define P_ATAPI_D4A (P_DEFINED | P_IDENT(GPIO_PF4) | P_FUNCT(1))
# define P_ATAPI_D5A (P_DEFINED | P_IDENT(GPIO_PF5) | P_FUNCT(1))
# define P_ATAPI_D6A (P_DEFINED | P_IDENT(GPIO_PF6) | P_FUNCT(1))
# define P_ATAPI_D7A (P_DEFINED | P_IDENT(GPIO_PF7) | P_FUNCT(1))
# define P_ATAPI_D8A (P_DEFINED | P_IDENT(GPIO_PF8) | P_FUNCT(1))
# define P_ATAPI_D9A (P_DEFINED | P_IDENT(GPIO_PF9) | P_FUNCT(1))
# define P_ATAPI_D10A (P_DEFINED | P_IDENT(GPIO_PF10) | P_FUNCT(1))
# define P_ATAPI_D11A (P_DEFINED | P_IDENT(GPIO_PF11) | P_FUNCT(1))
# define P_ATAPI_D12A (P_DEFINED | P_IDENT(GPIO_PF12) | P_FUNCT(1))
# define P_ATAPI_D13A (P_DEFINED | P_IDENT(GPIO_PF13) | P_FUNCT(1))
# define P_ATAPI_D14A (P_DEFINED | P_IDENT(GPIO_PF14) | P_FUNCT(1))
# define P_ATAPI_D15A (P_DEFINED | P_IDENT(GPIO_PF15) | P_FUNCT(1))
#else
# define P_ATAPI_D0A (P_DONTCARE)
# define P_ATAPI_D1A (P_DONTCARE)
# define P_ATAPI_D2A (P_DONTCARE)
# define P_ATAPI_D3A (P_DONTCARE)
# define P_ATAPI_D4A (P_DONTCARE)
# define P_ATAPI_D5A (P_DONTCARE)
# define P_ATAPI_D6A (P_DONTCARE)
# define P_ATAPI_D7A (P_DONTCARE)
# define P_ATAPI_D8A (P_DONTCARE)
# define P_ATAPI_D9A (P_DONTCARE)
# define P_ATAPI_D10A (P_DONTCARE)
# define P_ATAPI_D11A (P_DONTCARE)
# define P_ATAPI_D12A (P_DONTCARE)
# define P_ATAPI_D13A (P_DONTCARE)
# define P_ATAPI_D14A (P_DONTCARE)
# define P_ATAPI_D15A (P_DONTCARE)
#endif

#define P_PPI0_CLK (P_DEFINED | P_IDENT(GPIO_PG0) | P_FUNCT(0))
#define P_PPI0_FS1 (P_DEFINED | P_IDENT(GPIO_PG1) | P_FUNCT(0))
Expand All @@ -200,9 +220,15 @@
#define P_CAN0_RX (P_DEFINED | P_IDENT(GPIO_PG13) | P_FUNCT(0))
#define P_CAN1_TX (P_DEFINED | P_IDENT(GPIO_PG14) | P_FUNCT(0))
#define P_CAN1_RX (P_DEFINED | P_IDENT(GPIO_PG15) | P_FUNCT(0))
#define P_ATAPI_A0A (P_DEFINED | P_IDENT(GPIO_PG2) | P_FUNCT(1))
#define P_ATAPI_A1A (P_DEFINED | P_IDENT(GPIO_PG3) | P_FUNCT(1))
#define P_ATAPI_A2A (P_DEFINED | P_IDENT(GPIO_PG4) | P_FUNCT(1))
#ifdef CONFIG_BF548_ATAPI_ALTERNATIVE_PORT
# define P_ATAPI_A0A (P_DEFINED | P_IDENT(GPIO_PG2) | P_FUNCT(1))
# define P_ATAPI_A1A (P_DEFINED | P_IDENT(GPIO_PG3) | P_FUNCT(1))
# define P_ATAPI_A2A (P_DEFINED | P_IDENT(GPIO_PG4) | P_FUNCT(1))
#else
# define P_ATAPI_A0A (P_DONTCARE)
# define P_ATAPI_A1A (P_DONTCARE)
# define P_ATAPI_A2A (P_DONTCARE)
#endif
#define P_HOST_CE (P_DEFINED | P_IDENT(GPIO_PG5) | P_FUNCT(1))
#define P_HOST_RD (P_DEFINED | P_IDENT(GPIO_PG6) | P_FUNCT(1))
#define P_HOST_WR (P_DEFINED | P_IDENT(GPIO_PG7) | P_FUNCT(1))
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