From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56917) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eILXg-0001Th-QK for qemu-devel@nongnu.org; Fri, 24 Nov 2017 16:29:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eILXf-0007YM-OQ for qemu-devel@nongnu.org; Fri, 24 Nov 2017 16:29:48 -0500 Received: from mail-lf0-x241.google.com ([2a00:1450:4010:c07::241]:38250) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eILXf-0007YC-Gu for qemu-devel@nongnu.org; Fri, 24 Nov 2017 16:29:47 -0500 Received: by mail-lf0-x241.google.com with SMTP id c188so19204437lfd.5 for ; Fri, 24 Nov 2017 13:29:47 -0800 (PST) From: Francisco Iglesias Date: Fri, 24 Nov 2017 22:29:27 +0100 Message-Id: <20171124212938.7074-3-frasse.iglesias@gmail.com> In-Reply-To: <20171124212938.7074-1-frasse.iglesias@gmail.com> References: <20171124212938.7074-1-frasse.iglesias@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v8 02/13] m25p80: Add support for SST READ ID 0x90/0xAB commands List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: edgari@xilinx.com, alistai@xilinx.com, francisco.iglesias@feimtech.se, mar.krzeminski@gmail.com, peter.maydell@linaro.org Add support for SST READ ID 0x90/0xAB commands for reading out the flash manufacuter ID and device ID. Signed-off-by: Francisco Iglesias Acked-by: Alistair Francis Acked-by: Marcin Krzemiński --- hw/block/m25p80.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index d50acc1..9d20120 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -355,6 +355,8 @@ typedef enum { DPP = 0xa2, QPP = 0x32, QPP_4 = 0x34, + RDID_90 = 0x90, + RDID_AB = 0xab, ERASE_4K = 0x20, ERASE4_4K = 0x21, @@ -405,6 +407,7 @@ typedef enum { MAN_MACRONIX, MAN_NUMONYX, MAN_WINBOND, + MAN_SST, MAN_GENERIC, } Manufacturer; @@ -476,6 +479,8 @@ static inline Manufacturer get_man(Flash *s) return MAN_SPANSION; case 0xC2: return MAN_MACRONIX; + case 0xBF: + return MAN_SST; default: return MAN_GENERIC; } @@ -711,6 +716,22 @@ static void complete_collecting_data(Flash *s) case WEVCR: s->enh_volatile_cfg = s->data[0]; break; + case RDID_90: + case RDID_AB: + if (get_man(s) == MAN_SST && s->cur_addr <= 1) { + if (s->cur_addr) { + s->data[0] = s->pi->id[2]; + s->data[1] = s->pi->id[0]; + } else { + s->data[0] = s->pi->id[0]; + s->data[1] = s->pi->id[2]; + } + s->pos = 0; + s->len = 2; + s->data_read_loop = true; + s->state = STATE_READING_DATA; + } + break; default: break; } @@ -926,6 +947,8 @@ static void decode_new_cmd(Flash *s, uint32_t value) case PP4: case PP4_4: case DIE_ERASE: + case RDID_90: + case RDID_AB: s->needed_bytes = get_addr_length(s); s->pos = 0; s->len = 0; -- 2.9.3