From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>, hayashibara.keiji@socionext.com, masami.hiramatsu@linaro.org, jaswinder.singh@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Subject: [PATCH] nvmem: uniphier: change access unit from 32bit to 8bit Date: Wed, 22 Nov 2017 14:14:59 +0900 [thread overview] Message-ID: <1511327699-26396-1-git-send-email-hayashi.kunihiko@socionext.com> (raw) The efuse on UniPhier allows 8bit access according to the specification. Since bit offset of nvmem is limited to 0-7, it is desiable to change access unit of nvmem to 8bit. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/nvmem/uniphier-efuse.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c index 2bb45c4..fac3122 100644 --- a/drivers/nvmem/uniphier-efuse.c +++ b/drivers/nvmem/uniphier-efuse.c @@ -27,11 +27,11 @@ static int uniphier_reg_read(void *context, unsigned int reg, void *_val, size_t bytes) { struct uniphier_efuse_priv *priv = context; - u32 *val = _val; + u8 *val = _val; int offs; - for (offs = 0; offs < bytes; offs += sizeof(u32)) - *val++ = readl(priv->base + reg + offs); + for (offs = 0; offs < bytes; offs += sizeof(u8)) + *val++ = readb(priv->base + reg + offs); return 0; } @@ -53,8 +53,8 @@ static int uniphier_efuse_probe(struct platform_device *pdev) if (IS_ERR(priv->base)) return PTR_ERR(priv->base); - econfig.stride = 4; - econfig.word_size = 4; + econfig.stride = 1; + econfig.word_size = 1; econfig.read_only = true; econfig.reg_read = uniphier_reg_read; econfig.size = resource_size(res); -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: hayashi.kunihiko@socionext.com (Kunihiko Hayashi) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] nvmem: uniphier: change access unit from 32bit to 8bit Date: Wed, 22 Nov 2017 14:14:59 +0900 [thread overview] Message-ID: <1511327699-26396-1-git-send-email-hayashi.kunihiko@socionext.com> (raw) The efuse on UniPhier allows 8bit access according to the specification. Since bit offset of nvmem is limited to 0-7, it is desiable to change access unit of nvmem to 8bit. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/nvmem/uniphier-efuse.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c index 2bb45c4..fac3122 100644 --- a/drivers/nvmem/uniphier-efuse.c +++ b/drivers/nvmem/uniphier-efuse.c @@ -27,11 +27,11 @@ static int uniphier_reg_read(void *context, unsigned int reg, void *_val, size_t bytes) { struct uniphier_efuse_priv *priv = context; - u32 *val = _val; + u8 *val = _val; int offs; - for (offs = 0; offs < bytes; offs += sizeof(u32)) - *val++ = readl(priv->base + reg + offs); + for (offs = 0; offs < bytes; offs += sizeof(u8)) + *val++ = readb(priv->base + reg + offs); return 0; } @@ -53,8 +53,8 @@ static int uniphier_efuse_probe(struct platform_device *pdev) if (IS_ERR(priv->base)) return PTR_ERR(priv->base); - econfig.stride = 4; - econfig.word_size = 4; + econfig.stride = 1; + econfig.word_size = 1; econfig.read_only = true; econfig.reg_read = uniphier_reg_read; econfig.size = resource_size(res); -- 2.7.4
next reply other threads:[~2017-11-22 5:15 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-11-22 5:14 Kunihiko Hayashi [this message] 2017-11-22 5:14 ` [PATCH] nvmem: uniphier: change access unit from 32bit to 8bit Kunihiko Hayashi 2017-11-22 6:21 ` Masahiro Yamada 2017-11-22 6:21 ` Masahiro Yamada 2017-11-22 6:46 ` Keiji Hayashibara 2017-11-22 6:46 ` Keiji Hayashibara 2017-12-13 9:31 ` Kunihiko Hayashi 2017-12-13 9:31 ` Kunihiko Hayashi 2017-12-13 9:36 ` Srinivas Kandagatla 2017-12-13 9:36 ` Srinivas Kandagatla
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1511327699-26396-1-git-send-email-hayashi.kunihiko@socionext.com \ --to=hayashi.kunihiko@socionext.com \ --cc=hayashibara.keiji@socionext.com \ --cc=jaswinder.singh@linaro.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=masami.hiramatsu@linaro.org \ --cc=srinivas.kandagatla@linaro.org \ --cc=yamada.masahiro@socionext.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.