From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46003) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fQzJP-00025T-PW for qemu-devel@nongnu.org; Thu, 07 Jun 2018 14:07:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fQzJO-0004Sx-TO for qemu-devel@nongnu.org; Thu, 07 Jun 2018 14:07:03 -0400 Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 7 Jun 2018 15:06:38 -0300 Message-Id: <20180607180641.874-5-f4bug@amsat.org> In-Reply-To: <20180607180641.874-1-f4bug@amsat.org> References: <20180607180641.874-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v2 4/7] sdcard: Disable SEND_IF_COND (CMD8) for Spec v1 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alistair Francis , Peter Maydell Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, qemu-arm@nongnu.org, Paolo Bonzini , Eric Blake , Peter Crosthwaite , Paul Brook CMD8 is "Reserved" in Spec v1.10. Spec v2.00 introduces the SEND_IF_COND command: 6.4.1 Power Up CMD8 is newly added in the Physical Layer Specification Version 2.00 to support multiple voltage ranges and used to check whether the card supports supplied voltage. The version 2.00 or later host shall issue CMD8 and verify voltage before card initialization. The host that does not support CMD8 shall supply high voltage range. Message-Id: 201204252110.20873.paul@codesourcery.com Signed-off-by: Philippe Mathieu-Daudé --- hw/sd/sd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 1ae085de69..3ec0f71f24 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -1018,7 +1018,9 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) break; case 8: /* CMD8: SEND_IF_COND */ - /* Physical Layer Specification Version 2.00 command */ + if (sd->spec_version < SD_PHY_SPECv2_00_VERS) { + break; + } if (sd->state != sd_idle_state) { break; } -- 2.17.1