commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=7ad79aced149fc15489221604702a5560f334b07 branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/2012R1
Add work around for bfin serial driver as well. Signed-off-by: Sonic Zhang <[email protected]> --- arch/blackfin/include/asm/bfin_serial.h | 12 ++++++++++++ arch/blackfin/mach-bf609/include/mach/anomaly.h | 2 ++ 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/arch/blackfin/include/asm/bfin_serial.h b/arch/blackfin/include/asm/bfin_serial.h index 235c72a..8597158 100644 --- a/arch/blackfin/include/asm/bfin_serial.h +++ b/arch/blackfin/include/asm/bfin_serial.h @@ -282,7 +282,19 @@ struct bfin_uart_regs { #define UART_GET_GCTL(p) UART_GET_CTL(p) #define UART_GET_LCR(p) UART_GET_CTL(p) #define UART_GET_MCR(p) UART_GET_CTL(p) +#if ANOMALY_05001001 +#define UART_GET_STAT(p) \ +({ \ + u32 __ret; \ + unsigned long flags; \ + flags = hard_local_irq_save(); \ + __ret = bfin_read32(port_membase(p) + OFFSET_STAT); \ + hard_local_irq_restore(flags); \ + __ret; \ +}) +#else #define UART_GET_STAT(p) bfin_read32(port_membase(p) + OFFSET_STAT) +#endif #define UART_GET_MSR(p) UART_GET_STAT(p) #define UART_PUT_CHAR(p, v) bfin_write32(port_membase(p) + OFFSET_THR, v) diff --git a/arch/blackfin/mach-bf609/include/mach/anomaly.h b/arch/blackfin/mach-bf609/include/mach/anomaly.h index 97a9c65..bdd39ae 100644 --- a/arch/blackfin/mach-bf609/include/mach/anomaly.h +++ b/arch/blackfin/mach-bf609/include/mach/anomaly.h @@ -57,6 +57,8 @@ #define ANOMALY_05000481 (1) /* IFLUSH sucks at life */ #define ANOMALY_05000491 (1) +/* Tempopary anomaly ID for data loss in MMR read operation if interrupted */ +#define ANOMALY_05001001 (__SILICON_REVISION__ < 1) /* Anomalies that don't exist on this proc */ #define ANOMALY_05000099 (0)
_______________________________________________ Linux-kernel-commits mailing list [email protected] https://blackfin.uclinux.org/mailman/listinfo/linux-kernel-commits
