From patchwork Sun Mar 20 18:28:04 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: marcin.krzeminski@nokia.com X-Patchwork-Id: 8626951 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8BF9EC0553 for ; Sun, 20 Mar 2016 18:28:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D9A1D202C8 for ; Sun, 20 Mar 2016 18:28:51 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B1789202D1 for ; Sun, 20 Mar 2016 18:28:50 +0000 (UTC) Received: from localhost ([::1]:53981 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ahi5q-0006cj-2S for patchwork-qemu-devel@patchwork.kernel.org; Sun, 20 Mar 2016 14:28:50 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36295) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ahi5a-0006aG-N8 for qemu-devel@nongnu.org; Sun, 20 Mar 2016 14:28:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ahi5V-0004Wi-VV for qemu-devel@nongnu.org; Sun, 20 Mar 2016 14:28:34 -0400 Received: from demumfd001.nsn-inter.net ([93.183.12.32]:36261) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ahi5V-0004WA-LH for qemu-devel@nongnu.org; Sun, 20 Mar 2016 14:28:29 -0400 Received: from demuprx016.emea.nsn-intra.net ([10.150.129.55]) by demumfd001.nsn-inter.net (8.15.2/8.15.2) with ESMTPS id u2KISJuB009732 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sun, 20 Mar 2016 18:28:19 GMT Received: from CNU418C7XK.emea.nsn-net.net ([10.150.177.236]) by demuprx016.emea.nsn-intra.net (8.12.11.20060308/8.12.11) with ESMTP id u2KISEfc017919; Sun, 20 Mar 2016 19:28:18 +0100 From: marcin.krzeminski@nokia.com To: qemu-devel@nongnu.org Date: Sun, 20 Mar 2016 19:28:04 +0100 Message-Id: <1458498493-13906-3-git-send-email-marcin.krzeminski@nokia.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1458498493-13906-1-git-send-email-marcin.krzeminski@nokia.com> References: <1458498493-13906-1-git-send-email-marcin.krzeminski@nokia.com> X-purgate-type: clean X-purgate-Ad: Categorized by eleven eXpurgate (R) http://www.eleven.de X-purgate: clean X-purgate: This mail is considered clean (visit http://www.eleven.de for further information) X-purgate-size: 3045 X-purgate-ID: 151667::1458498499-00007057-6FD6F0CC/0/0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 93.183.12.32 Cc: crosthwaitepeter@gmail.com, clg@fr.ibm.com, rfsw-patches@mlist.nsn-inter.net, pawel.lenkow@itlen.com, marcin.krzeminski@nokia.com Subject: [Qemu-devel] [PATCH v5 02/11] block: m25p80: RESET_ENABLE and RESET_MEMORY commands X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Marcin Krzeminski Signed-off-by: Marcin Krzeminski Reviewed-by: Peter Crosthwaite --- hw/block/m25p80.c | 41 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 40 insertions(+), 1 deletion(-) diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 2222124..1d053a5 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -233,6 +233,9 @@ typedef enum { ERASE_4K = 0x20, ERASE_32K = 0x52, ERASE_SECTOR = 0xd8, + + RESET_ENABLE = 0x66, + RESET_MEMORY = 0x99, } FlashCMD; typedef enum { @@ -260,6 +263,7 @@ typedef struct Flash { uint8_t cmd_in_progress; uint64_t cur_addr; bool write_enable; + bool reset_enable; int64_t dirty_page; @@ -432,11 +436,29 @@ static void complete_collecting_data(Flash *s) } } +static void reset_memory(Flash *s) +{ + s->cmd_in_progress = NOP; + s->cur_addr = 0; + s->len = 0; + s->needed_bytes = 0; + s->pos = 0; + s->state = STATE_IDLE; + s->write_enable = false; + s->reset_enable = false; + + DB_PRINT_L(0, "Reset done.\n"); +} + static void decode_new_cmd(Flash *s, uint32_t value) { s->cmd_in_progress = value; DB_PRINT_L(0, "decoded new command:%x\n", value); + if (value != RESET_MEMORY) { + s->reset_enable = false; + } + switch (value) { case ERASE_4K: @@ -541,6 +563,14 @@ static void decode_new_cmd(Flash *s, uint32_t value) break; case NOP: break; + case RESET_ENABLE: + s->reset_enable = true; + break; + case RESET_MEMORY: + if (s->reset_enable) { + reset_memory(s); + } + break; default: qemu_log_mask(LOG_GUEST_ERROR, "M25P80: Unknown cmd %x\n", value); break; @@ -647,6 +677,13 @@ static int m25p80_init(SSISlave *ss) return 0; } +static void m25p80_reset(DeviceState *d) +{ + Flash *s = M25P80(d); + + reset_memory(s); +} + static void m25p80_pre_save(void *opaque) { flash_sync_dirty((Flash *)opaque, -1); @@ -654,7 +691,7 @@ static void m25p80_pre_save(void *opaque) static const VMStateDescription vmstate_m25p80 = { .name = "xilinx_spi", - .version_id = 1, + .version_id = 2, .minimum_version_id = 1, .pre_save = m25p80_pre_save, .fields = (VMStateField[]) { @@ -666,6 +703,7 @@ static const VMStateDescription vmstate_m25p80 = { VMSTATE_UINT8(cmd_in_progress, Flash), VMSTATE_UINT64(cur_addr, Flash), VMSTATE_BOOL(write_enable, Flash), + VMSTATE_BOOL(reset_enable, Flash), VMSTATE_END_OF_LIST() } }; @@ -681,6 +719,7 @@ static void m25p80_class_init(ObjectClass *klass, void *data) k->set_cs = m25p80_cs; k->cs_polarity = SSI_CS_LOW; dc->vmsd = &vmstate_m25p80; + dc->reset = m25p80_reset; mc->pi = data; }