From 683618b0639387c5eda79b2f2753c35f3dd648d7 Mon Sep 17 00:00:00 2001 From: Kunihiko Hayashi Date: Fri, 15 Dec 2017 14:06:07 +0000 Subject: [PATCH] nvmem: uniphier: change access unit from 32bit to 8bit 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 Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- 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 9d278b4..be11880 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