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arm/dcc: add xscale support 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2009-05-15 23:47:14 +02:00 committed by Wolfgang Denk
parent 66e8f9da68
commit 65a76d4f94
1 changed files with 16 additions and 0 deletions
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16
drivers/serial/arm_dcc.c
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@ -45,6 +45,22 @@
#define status_dcc(x) \ #define status_dcc(x) \
__asm__ volatile ("mrc p14, 0, %0, c0, c1, 0\n" : "=r" (x)) __asm__ volatile ("mrc p14, 0, %0, c0, c1, 0\n" : "=r" (x))
#elif defined(CONFIG_CPU_XSCALE)
/*
* XSCALE
*/
#define DCC_RBIT (1 << 31)
#define DCC_WBIT (1 << 28)
#define write_dcc(x) \
__asm__ volatile ("mcr p14, 0, %0, c8, c0, 0\n" : : "r" (x))
#define read_dcc(x) \
__asm__ volatile ("mrc p14, 0, %0, c9, c0, 0\n" : "=r" (x))
#define status_dcc(x) \
__asm__ volatile ("mrc p14, 0, %0, c14, c0, 0\n" : "=r" (x))
#else #else
#define DCC_RBIT (1 << 0) #define DCC_RBIT (1 << 0)
#define DCC_WBIT (1 << 1) #define DCC_WBIT (1 << 1)