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authorGraf Yang <graf.yang@analog.com>2009-05-20 06:06:15 +0000
committerMike Frysinger <vapier@gentoo.org>2009-06-12 06:11:35 -0400
commitee0263cc2e7d774655bba6a6750a06099a3cebf0 (patch)
treed61cab8a80e616156239defc5ebcf4a995035164
parent7f3aee3c187641ec7c7e260d9cabb71ac4ac9f7c (diff)
Blackfin: BF518F-EZBRD: handle required portmuxing of async pins
The two high address lines on the BF51x are not dedicated which means we need to handle them like any other peripheral pin if we want to access the upper 2MB of parallel flash. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
-rw-r--r--arch/blackfin/mach-bf518/boards/ezbrd.c9
-rw-r--r--arch/blackfin/mach-bf518/include/mach/portmux.h6
2 files changed, 14 insertions, 1 deletions
diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c
index 41f2eacfef2..602dce028b7 100644
--- a/arch/blackfin/mach-bf518/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf518/boards/ezbrd.c
@@ -82,7 +82,11 @@ static struct physmap_flash_data ezbrd_flash_data = {
static struct resource ezbrd_flash_resource = {
.start = 0x20000000,
+#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+ .end = 0x202fffff,
+#else
.end = 0x203fffff,
+#endif
.flags = IORESOURCE_MEM,
};
@@ -678,6 +682,11 @@ static int __init ezbrd_init(void)
ARRAY_SIZE(bfin_i2c_board_info));
platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
+ /* setup BF518-EZBRD GPIO pin PG11 to AMS2, PG15 to AMS3. */
+ peripheral_request(P_AMS2, "ParaFlash");
+#if !defined(CONFIG_SPI_BFIN) && !defined(CONFIG_SPI_BFIN_MODULE)
+ peripheral_request(P_AMS3, "ParaFlash");
+#endif
return 0;
}
diff --git a/arch/blackfin/mach-bf518/include/mach/portmux.h b/arch/blackfin/mach-bf518/include/mach/portmux.h
index f618b487b2b..a0fc77fd331 100644
--- a/arch/blackfin/mach-bf518/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf518/include/mach/portmux.h
@@ -185,6 +185,10 @@
#define P_PTP_PPS (P_DEFINED | P_IDENT(GPIO_PG12) | P_FUNCT(2))
#define P_PTP_CLKOUT (P_DEFINED | P_IDENT(GPIO_PG13) | P_FUNCT(2))
-#define P_HWAIT (P_DEFINED | P_IDENT(GPIO_PG000000000) | P_FUNCT(1))
+/* AMS */
+#define P_AMS2 (P_DEFINED | P_IDENT(GPIO_PG11) | P_FUNCT(1))
+#define P_AMS3 (P_DEFINED | P_IDENT(GPIO_PG15) | P_FUNCT(2))
+
+#define P_HWAIT (P_DEFINED | P_IDENT(GPIO_PG000000000) | P_FUNCT(1))
#endif /* _MACH_PORTMUX_H_ */