[OpenWrt-Devel] [PATCH 15/17] atheros[uart]: use 32-bit aligned I/O

Sergey Ryazanov ryazanov.s.a at gmail.com
Sat Jul 12 09:33:38 EDT 2014


Use 32-bit aligned I/O and update base UART address (remove +3 offset).

Signed-off-by: Sergey Ryazanov <ryazanov.s.a at gmail.com>
---
 target/linux/atheros/patches-3.10/100-board.patch                | 6 +++---
 target/linux/atheros/patches-3.10/101-early-printk-support.patch | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/target/linux/atheros/patches-3.10/100-board.patch b/target/linux/atheros/patches-3.10/100-board.patch
index 4fdf435..b9d3719 100644
--- a/target/linux/atheros/patches-3.10/100-board.patch
+++ b/target/linux/atheros/patches-3.10/100-board.patch
@@ -766,7 +766,7 @@
 +#define AR2315_LOCAL            0x10400000      /* LOCAL BUS MMR */
 +#define AR2315_ENET0            0x10500000      /* ETHERNET MMR */
 +#define AR2315_DSLBASE          0x11000000      /* RESET CONTROL MMR */
-+#define AR2315_UART0            0x11100003      /* UART MMR */
++#define AR2315_UART0            0x11100000      /* UART MMR */
 +#define AR2315_SPI_MMR          0x11300000      /* SPI FLASH MMR */
 +#define AR2315_PCIEXT           0x80000000      /* pci external */
 +
@@ -1385,7 +1385,7 @@
 +#define AR531X_FLASHCTL         0x18400000
 +#define AR531X_APBBASE		0x1c000000
 +#define AR531X_FLASH            0x1e000000
-+#define AR531X_UART0            0xbc000003      /* UART MMR */
++#define AR531X_UART0            0xbc000000      /* UART MMR */
 +
 +/*
 + * AR531X_NUM_ENET_MAC defines the number of ethernet MACs that
@@ -3007,7 +3007,7 @@
 +	memset(&s, 0, sizeof(s));
 +
 +	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
-+	s.iotype = UPIO_MEM;
++	s.iotype = UPIO_MEM32;
 +	s.irq = irq;
 +	s.regshift = 2;
 +	s.mapbase = mapbase;
diff --git a/target/linux/atheros/patches-3.10/101-early-printk-support.patch b/target/linux/atheros/patches-3.10/101-early-printk-support.patch
index 3daa011..be68025 100644
--- a/target/linux/atheros/patches-3.10/101-early-printk-support.patch
+++ b/target/linux/atheros/patches-3.10/101-early-printk-support.patch
@@ -21,12 +21,12 @@
 +static inline void prom_uart_wr(void __iomem *base, unsigned reg,
 +				unsigned char ch)
 +{
-+	__raw_writeb(ch, base + 4 * reg);
++	__raw_writel(ch, base + 4 * reg);
 +}
 +
 +static inline unsigned char prom_uart_rr(void __iomem *base, unsigned reg)
 +{
-+	return __raw_readb(base + 4 * reg);
++	return __raw_readl(base + 4 * reg);
 +}
 +
 +void prom_putchar(unsigned char ch)
-- 
1.8.1.5
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