diff options
| author | Manuel Lauss <manuel.lauss@googlemail.com> | 2009-10-04 14:55:24 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-02-27 12:52:50 +0100 |
| commit | 9bdcf336d0c061e77f4c45c7b2bc32e3ed6b57e3 (patch) | |
| tree | 9cce0d50bb1709654fae719e7175da25279402bc /arch/mips/alchemy/devboards/pb1550 | |
| parent | ebc89718a4b3fa0e440151fb4484541700828a5d (diff) | |
MIPS: Alchemy: devboard register abstraction
All Alchemy development boards have external CPLDs with a few registers
in them. They all share an identical register layout with only a few
minor differences (except the PB1000) in bit functions and base
addresses.
This patch
- adds a primitive facility to initialize and use these external
registers,
- replaces all occurrences of bcsr->xxx accesses with calls to the new
functions (the pb1200 cascade irq handling code is special).
- collects BCSR register information scattered throughout the board
headers in a central place.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/alchemy/devboards/pb1550')
| -rw-r--r-- | arch/mips/alchemy/devboards/pb1550/board_setup.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/mips/alchemy/devboards/pb1550/board_setup.c b/arch/mips/alchemy/devboards/pb1550/board_setup.c index b6e9e7d247a..af7a1b5fe7c 100644 --- a/arch/mips/alchemy/devboards/pb1550/board_setup.c +++ b/arch/mips/alchemy/devboards/pb1550/board_setup.c @@ -32,6 +32,7 @@ #include <asm/mach-au1x00/au1000.h> #include <asm/mach-pb1x00/pb1550.h> +#include <asm/mach-db1x00/bcsr.h> #include <prom.h> @@ -53,8 +54,7 @@ const char *get_system_type(void) void board_reset(void) { - /* Hit BCSR.SYSTEM[RESET] */ - au_writew(au_readw(0xAF00001C) & ~BCSR_SYSTEM_RESET, 0xAF00001C); + bcsr_write(BCSR_SYSTEM, 0); } void __init board_init_irq(void) @@ -66,6 +66,10 @@ void __init board_setup(void) { u32 pin_func; + bcsr_init(PB1550_BCSR_PHYS_ADDR, + PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS); + + #ifdef CONFIG_SERIAL_8250_CONSOLE char *argptr; argptr = prom_getcmdline(); @@ -85,8 +89,7 @@ void __init board_setup(void) pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1; au_writel(pin_func, SYS_PINFUNC); - au_writel(0, (u32)bcsr | 0x10); /* turn off PCMCIA power */ - au_sync(); + bcsr_write(BCSR_PCMCIA, 0); /* turn off PCMCIA power */ printk(KERN_INFO "AMD Alchemy Pb1550 Board\n"); } |