From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52366) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UegCx-0002U7-Eh for qemu-devel@nongnu.org; Tue, 21 May 2013 02:38:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UegCw-0005K8-5g for qemu-devel@nongnu.org; Tue, 21 May 2013 02:38:03 -0400 Received: from mail-pa0-f44.google.com ([209.85.220.44]:61896) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UegCw-0005K2-02 for qemu-devel@nongnu.org; Tue, 21 May 2013 02:38:02 -0400 Received: by mail-pa0-f44.google.com with SMTP id jh10so387923pab.3 for ; Mon, 20 May 2013 23:38:01 -0700 (PDT) Sender: Peter Crosthwaite From: peter.crosthwaite@xilinx.com Date: Tue, 21 May 2013 16:33:42 +1000 Message-Id: In-Reply-To: References: Subject: [Qemu-devel] [PATCH arm-devs v4 07/15] xilinx_spips: Add automatic start support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.maydell@linaro.org, qemu-devel@nongnu.org Cc: edgar.iglesias@gmail.com From: Peter Crosthwaite SPI has a mode where it automatically starts based on tx fifo occupancy. Implemented. Signed-off-by: Peter Crosthwaite Reviewed-by: Peter Maydell Reviewed-by: Edgar E. Iglesias --- hw/ssi/xilinx_spips.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c index cf4c43e..0c04ec9 100644 --- a/hw/ssi/xilinx_spips.c +++ b/hw/ssi/xilinx_spips.c @@ -451,7 +451,8 @@ static void xilinx_spips_write(void *opaque, hwaddr addr, } s->regs[addr] = (s->regs[addr] & ~mask) | (value & mask); no_reg_update: - if (man_start_com) { + if ((man_start_com && s->regs[R_CONFIG] & MAN_START_EN) || + (fifo8_is_empty(&s->tx_fifo) && s->regs[R_CONFIG] & MAN_START_EN)) { xilinx_spips_flush_txfifo(s); } xilinx_spips_update_ixr(s); -- 1.8.3.rc1.44.gb387c77.dirty