From patchwork Sat May 23 16:38:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 246355 List-Id: U-Boot discussion From: marek.vasut at gmail.com (Marek Vasut) Date: Sat, 23 May 2020 18:38:18 +0200 Subject: [PATCH 11/30] net: eepro100: Use standard I/O accessors In-Reply-To: <20200523163837.407592-1-marek.vasut+renesas@gmail.com> References: <20200523163837.407592-1-marek.vasut+renesas@gmail.com> Message-ID: <20200523163837.407592-11-marek.vasut+renesas@gmail.com> The current eepro100 driver accesses its memory mapped registers directly instead of using the standard I/O accessors. This can cause problems on some systems as the accesses can get out of order. So convert the direct volatile dereferences to use the normal in/out macros. Signed-off-by: Marek Vasut Reviewed-By: Ramon Fried --- drivers/net/eepro100.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c index d3ced08761..5d11665fdc 100644 --- a/drivers/net/eepro100.c +++ b/drivers/net/eepro100.c @@ -220,23 +220,23 @@ static void eepro100_halt(struct eth_device *dev); static inline int INW(struct eth_device *dev, u_long addr) { - return le16_to_cpu(*(volatile u16 *)(addr + (u_long)dev->iobase)); + return le16_to_cpu(readw(addr + (void *)dev->iobase)); } static inline void OUTW(struct eth_device *dev, int command, u_long addr) { - *(volatile u16 *)((addr + (u_long)dev->iobase)) = cpu_to_le16(command); + writew(cpu_to_le16(command), addr + (void *)dev->iobase); } static inline void OUTL(struct eth_device *dev, int command, u_long addr) { - *(volatile u32 *)((addr + (u_long)dev->iobase)) = cpu_to_le32(command); + writel(cpu_to_le32(command), addr + (void *)dev->iobase); } #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) static inline int INL(struct eth_device *dev, u_long addr) { - return le32_to_cpu(*(volatile u32 *)(addr + (u_long)dev->iobase)); + return le32_to_cpu(readl(addr + (void *)dev->iobase)); } static int get_phyreg(struct eth_device *dev, unsigned char addr,