From patchwork Thu Nov 24 07:39:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaime Liao X-Patchwork-Id: 628521 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08AD4C4332F for ; Thu, 24 Nov 2022 07:40:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229500AbiKXHke (ORCPT ); Thu, 24 Nov 2022 02:40:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229606AbiKXHk2 (ORCPT ); Thu, 24 Nov 2022 02:40:28 -0500 Received: from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com [IPv6:2607:f8b0:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F241092B4F; Wed, 23 Nov 2022 23:40:27 -0800 (PST) Received: by mail-pg1-x52a.google.com with SMTP id n17so907130pgh.9; Wed, 23 Nov 2022 23:40:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=7S1seOnibUlw6OdzLDbRM1IZ6rta3D5eLOPFyKSRo60=; b=OikolcwKLyDm6Gm9nYajldTnbUzGDkqZ6RKM7j7kQG5cQM4Kc64p3MVfFNbshYbBER uXVgUdCgSAbErevyhpOQ1DYLpnaDesR8jDA9S4q8CKW2Fj9CO2XlYjtdfeW7H2TgNb2W uYvwQYYfVdpqtcIrLG5lX8vhKl2m/U6oeZydUJfRcJaaN2pa6SbbdiyXNBanC3kZYoaj vzgneTCkkeUtog4t0p83zBwNF+quGxuXGNAYgSvtlghWDNFuGBbBucrKKiQY8EMGHMcd b8xmpi7P6LdVe9MXivmqcFP9nbTmP6XhqJZlU9K93BALlkIflwNLTytqgyqq3hswugJk tdxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=7S1seOnibUlw6OdzLDbRM1IZ6rta3D5eLOPFyKSRo60=; b=pv4Hx5+KM41x/TU89HE4YCFXiod1nE41NuNHAv5BuZ4GkdbmaLHMFfIFY5J+Di126l JKVak/MwjdmT8BMM9Pdi45Llfk8foVNsmmtQzJsQgq2heByuzMHF5fHZNZN83vgrJjlU 19Yc1PZ7Sa76xcVU76zEUE5VNQGg5mgPOY6OCyqJUduFMxsAMcPPGYxSfs/ByFA3vok1 +qKo6pNL7GVK1DRrlECE0D+b9aS3cOVrKnjNEZ6ta/uAP45ODiqObXXF7AVTvF8xvhSh p7pbsgZ7aKaJ5EIcYhXEV/jI/vFE+mbDbH82+tQXJ9m1xXfsD9V/5IfaXfMIbj2nsNv/ 3SHw== X-Gm-Message-State: ANoB5pkKdrctlFo2JsVSmsSL74xqjfkzF+oEsB3AUFPU3vPD9oW+2KWv sCUy8nDEwKnr3T5PT6HsIwYhCOwcFvc= X-Google-Smtp-Source: AA0mqf67xCuJAZiXjOWHBFYcxdW2WL1LKeI5w3+b9yO6m3a0ZfN5pMwVuzPZ1uhx5L5IkH6Hm4AX5A== X-Received: by 2002:aa7:92c7:0:b0:574:39dd:f162 with SMTP id k7-20020aa792c7000000b0057439ddf162mr8180973pfa.44.1669275627508; Wed, 23 Nov 2022 23:40:27 -0800 (PST) Received: from localhost.localdomain ([123.51.145.88]) by smtp.gmail.com with ESMTPSA id s5-20020a632c05000000b0047781f8ac17sm503143pgs.77.2022.11.23.23.40.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Nov 2022 23:40:27 -0800 (PST) From: JaimeLiao To: broonie@kernel.org, krzysztof.kozlowski@linaro.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jaimeliao@mxic.com.tw, JaimeLiao Subject: [PATCH v1 2/2] memory: renesas-rpc-if: Add Octal DTR mode support Date: Thu, 24 Nov 2022 15:39:57 +0800 Message-Id: <20221124073957.22471-3-jaimeliao.tw@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221124073957.22471-1-jaimeliao.tw@gmail.com> References: <20221124073957.22471-1-jaimeliao.tw@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org 1. Support Octal DTR manual mode (Program & Erase & register) 2. Support diramap read (enable external address space read mode) Signed-off-by: JaimeLiao --- drivers/memory/renesas-rpc-if.c | 56 +++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c index bdf0a7f68ff2..db5019a7190e 100644 --- a/drivers/memory/renesas-rpc-if.c +++ b/drivers/memory/renesas-rpc-if.c @@ -462,6 +462,43 @@ void rpcif_prepare(struct rpcif *rpc, const struct rpcif_op *op, u64 *offs, rpc->enable |= RPCIF_SMENR_SPIDB(rpcif_bit_size(op->data.buswidth)); } + /* Fixup in Octal DTR mode */ + if (op->cmd.buswidth == 8 && op->cmd.ddr) { + rpc->bus_size = 2; + + regmap_update_bits(rpc->regmap, RPCIF_PHYCNT, + RPCIF_PHYCNT_OCTA(0x2) | RPCIF_PHYCNT_OCT | + RPCIF_PHYCNT_PHYMEM(0x1) , + RPCIF_PHYCNT_OCTA(0x2) | RPCIF_PHYCNT_OCT | + RPCIF_PHYCNT_PHYMEM(0x1)); + regmap_update_bits(rpc->regmap, RPCIF_CMNCR, RPCIF_CMNCR_BSZ(1), + RPCIF_CMNCR_BSZ(1)); + + regmap_update_bits(rpc->regmap, RPCIF_PHYOFFSET1, + RPCIF_PHYOFFSET1_DDRTMG(3), + RPCIF_PHYOFFSET1_DDRTMG(2)); + regmap_update_bits(rpc->regmap, RPCIF_PHYOFFSET2, + RPCIF_PHYOFFSET2_OCTTMG(7), + RPCIF_PHYOFFSET2_OCTTMG(3)); + + if (op->ocmd.buswidth == 8 && RPCIF_SMENR_OCDE) + rpc->enable &= ~RPCIF_SMENR_OCDE; + + if (op->addr.ddr) + rpc->enable &= ~RPCIF_SMENR_ADE(0xF) | + RPCIF_SMENR_ADE(0xc); + + if (op->dummy.buswidth == 8) + rpc->dummy = + RPCIF_SMDMCR_DMCYC(op->dummy.ncycles / 2); + + if (op->data.dir == RPCIF_DATA_IN) + /* Set Extenal Address space Read mode */ + if (op->data.buswidth == 8 && op->data.ddr) { + regmap_update_bits(rpc->regmap, RPCIF_PHYCNT, + RPCIF_PHYCNT_EXDS, RPCIF_PHYCNT_EXDS); + } + } } EXPORT_SYMBOL(rpcif_prepare); @@ -501,10 +538,24 @@ int rpcif_manual_xfer(struct rpcif *rpc) rpc->xfer_size = nbytes; memcpy(data, rpc->buffer + pos, nbytes); + if (rpc->bus_size == 2) { + data[0] = (data[0] & 0x00f000f0) << 8 | + (data[0] & 0xf000f000) >> 4 | + (data[0] & 0x000f000f) << 4 | + (data[0] & 0x0f000f00) >> 8; + + data[1] = (data[1] & 0x00f000f0) << 8 | + (data[1] & 0xf000f000) >> 4 | + (data[1] & 0x000f000f) << 4 | + (data[1] & 0x0f000f00) >> 8; + } if (nbytes == 8) regmap_write(rpc->regmap, RPCIF_SMWDR1, *p++); regmap_write(rpc->regmap, RPCIF_SMWDR0, *p); + regmap_write(rpc->regmap, RPCIF_SMADR, + rpc->smadr + pos); + regmap_write(rpc->regmap, RPCIF_SMENR, smenr); regmap_write(rpc->regmap, RPCIF_SMCR, smcr); ret = wait_msg_xfer_end(rpc); if (ret) @@ -652,9 +703,14 @@ ssize_t rpcif_dirmap_read(struct rpcif *rpc, u64 offs, size_t len, void *buf) regmap_write(rpc->regmap, RPCIF_DROPR, rpc->option); regmap_write(rpc->regmap, RPCIF_DRENR, rpc->enable & ~RPCIF_SMENR_SPIDE(0xF)); + regmap_write(rpc->regmap, RPCIF_SMENR, + rpc->enable & ~RPCIF_SMENR_SPIDE(0xF)); regmap_write(rpc->regmap, RPCIF_DRDMCR, rpc->dummy); regmap_write(rpc->regmap, RPCIF_DRDRENR, rpc->ddr); + regmap_update_bits(rpc->regmap, RPCIF_DRENR, RPCIF_DRENR_ADE(0xF), + RPCIF_DRENR_ADE(0xF)); + if (rpc->bus_size == 2) memcpy_fromio_readw(buf, rpc->dirmap + from, len); else