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Blackfin: Allow bf548 ATAPI to be routed to GPIO

Browse source 
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>
This commit is contained in:
Sonic Zhang 2009-03-30 09:07:26 +00:00 committed by Mike Frysinger
parent ffdf3ec806
commit 8d5c2f03bb
2 changed files with 52 additions and 19 deletions
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7
arch/blackfin/mach-bf548/Kconfig
View file

@ -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"

64
arch/blackfin/mach-bf548/include/mach/portmux.h
View file

@ -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))
@ -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))