diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.10/0205-lantiq-nand-lock.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.10/0205-lantiq-nand-lock.patch | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/target/linux/lantiq/patches-3.10/0205-lantiq-nand-lock.patch b/target/linux/lantiq/patches-3.10/0205-lantiq-nand-lock.patch deleted file mode 100644 index 08d81fd..0000000 --- a/target/linux/lantiq/patches-3.10/0205-lantiq-nand-lock.patch +++ /dev/null @@ -1,86 +0,0 @@ -From patchwork Wed Apr 2 19:38:31 2014 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -Subject: [OpenWrt-Devel, - 3/7] lantiq: BT Home Hub 2B support - nand driver locking -Date: Wed, 02 Apr 2014 18:38:31 -0000 -From: Ben Mulvihill <ben.mulvihill@gmail.com> -X-Patchwork-Id: 5112 -Message-Id: <1396467511.31327.41.camel@merveille.lan> -To: openwrt-devel@lists.openwrt.org - -As a result of changeset 40310, the xway nand driver -now acquires ebu_lock in the chip select function, and -holds it for the entire duration of an operation until -the chip is deselected. There is surely no longer any -need therefore also to acquire the lock in each separate -read or write function. This patch removes that code. - -Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com> - ---- - - ---- a/drivers/mtd/nand/xway_nand.c -+++ b/drivers/mtd/nand/xway_nand.c -@@ -102,7 +102,6 @@ static void xway_cmd_ctrl(struct mtd_inf - { - struct nand_chip *this = mtd->priv; - unsigned long nandaddr = (unsigned long) this->IO_ADDR_W; -- unsigned long flags; - - if (ctrl & NAND_CTRL_CHANGE) { - if (ctrl & NAND_CLE) -@@ -112,11 +111,9 @@ static void xway_cmd_ctrl(struct mtd_inf - } - - if (cmd != NAND_CMD_NONE) { -- spin_lock_irqsave(&ebu_lock, flags); - writeb(cmd, (void __iomem *) (nandaddr | xway_latchcmd)); - while ((ltq_ebu_r32(EBU_NAND_WAIT) & NAND_WAIT_WR_C) == 0) - ; -- spin_unlock_irqrestore(&ebu_lock, flags); - } - } - -@@ -129,12 +126,9 @@ static unsigned char xway_read_byte(stru - { - struct nand_chip *this = mtd->priv; - unsigned long nandaddr = (unsigned long) this->IO_ADDR_R; -- unsigned long flags; - int ret; - -- spin_lock_irqsave(&ebu_lock, flags); - ret = ltq_r8((void __iomem *)(nandaddr | NAND_READ_DATA)); -- spin_unlock_irqrestore(&ebu_lock, flags); - - return ret; - } -@@ -143,26 +137,20 @@ static void xway_read_buf(struct mtd_inf - { - struct nand_chip *this = mtd->priv; - unsigned long nandaddr = (unsigned long) this->IO_ADDR_R; -- unsigned long flags; - int i; - -- spin_lock_irqsave(&ebu_lock, flags); - for (i = 0; i < len; i++) - buf[i] = ltq_r8((void __iomem *)(nandaddr | NAND_READ_DATA)); -- spin_unlock_irqrestore(&ebu_lock, flags); - } - - static void xway_write_buf(struct mtd_info *mtd, const u_char *buf, int len) - { - struct nand_chip *this = mtd->priv; - unsigned long nandaddr = (unsigned long) this->IO_ADDR_W; -- unsigned long flags; - int i; - -- spin_lock_irqsave(&ebu_lock, flags); - for (i = 0; i < len; i++) - ltq_w8(buf[i], (void __iomem *)nandaddr); -- spin_unlock_irqrestore(&ebu_lock, flags); - } - - static int xway_nand_probe(struct platform_device *pdev) |