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Date: Fri, 5 Jun 2009 04:04:13 -0400 From: Mike Frysinger <vapier@...too.org> To: linux-kernel@...r.kernel.org Cc: uclinux-dist-devel@...ckfin.uclinux.org, Sonic Zhang <sonic.zhang@...log.com>, Bryan Wu <cooloney@...nel.org> Subject: [PATCH 04/62] Blackfin: Allow bf548 ATAPI to be routed to GPIO From: Sonic Zhang <sonic.zhang@...log.com> 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@...log.com> Signed-off-by: Mike Frysinger <vapier@...too.org> Signed-off-by: Bryan Wu <cooloney@...nel.org> --- arch/blackfin/mach-bf548/Kconfig | 7 +++ arch/blackfin/mach-bf548/include/mach/portmux.h | 64 ++++++++++++++++------- 2 files changed, 52 insertions(+), 19 deletions(-) diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig index dcf6571..8d24eaa 100644 --- a/arch/blackfin/mach-bf548/Kconfig +++ b/arch/blackfin/mach-bf548/Kconfig @@ -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" diff --git a/arch/blackfin/mach-bf548/include/mach/portmux.h b/arch/blackfin/mach-bf548/include/mach/portmux.h index ffb1d0a..ce372ba 100644 --- a/arch/blackfin/mach-bf548/include/mach/portmux.h +++ b/arch/blackfin/mach-bf548/include/mach/portmux.h @@ -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)) -- 1.6.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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