From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:37188) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QNLkT-0000GV-Jf for qemu-devel@nongnu.org; Fri, 20 May 2011 05:11:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QNLkS-0007VZ-55 for qemu-devel@nongnu.org; Fri, 20 May 2011 05:11:57 -0400 From: Peter Maydell Date: Fri, 20 May 2011 10:11:53 +0100 Message-Id: <1305882713-24997-1-git-send-email-peter.maydell@linaro.org> Subject: [Qemu-devel] [PATCH] hw/sd.c: Don't complain about SDIO commands CMD52/CMD53 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-trivial@nongnu.org, patches@linaro.org The SDIO specification introduces new commands 52 and 53. Handle as illegal command but do not complain on stderr, as SDIO-aware OSes (including Linux) may legitimately use these in their probing for presence of an SDIO card. Signed-off-by: Peter Maydell --- hw/sd.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/hw/sd.c b/hw/sd.c index f44a970..cedfb20 100644 --- a/hw/sd.c +++ b/hw/sd.c @@ -1104,6 +1104,17 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, } break; + case 52: + case 53: + /* CMD52, CMD53: reserved for SDIO cards + * (see the SDIO Simplified Specification V2.0) + * Handle as illegal command but do not complain + * on stderr, as some OSes may use these in their + * probing for presence of an SDIO card. + */ + sd->card_status |= ILLEGAL_COMMAND; + return sd_r0; + /* Application specific commands (Class 8) */ case 55: /* CMD55: APP_CMD */ if (sd->rca != rca) -- 1.7.1