diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-05-29 10:04:24 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-05-29 10:04:24 +0100 |
| commit | 42f1d2e06a25628ae4ceaadccc4fa67c7787e2b4 (patch) | |
| tree | 8aac83e399de7ad13748a59853a0feea9ed2c5cb /arch/arm/mach-davinci/include/mach/uncompress.h | |
| parent | 9af5324a070e0b2dcb6e22c89e17424eba245fcc (diff) | |
| parent | 77bbca138c64cb80259732db6f70e1668123f2a7 (diff) | |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci into devel
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/uncompress.h')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/uncompress.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/arm/mach-davinci/include/mach/uncompress.h b/arch/arm/mach-davinci/include/mach/uncompress.h index 8c165def37b..1e27475f9a2 100644 --- a/arch/arm/mach-davinci/include/mach/uncompress.h +++ b/arch/arm/mach-davinci/include/mach/uncompress.h @@ -13,11 +13,24 @@ #include <linux/serial_reg.h> #include <mach/serial.h> +#include <asm/mach-types.h> + +extern unsigned int __machine_arch_type; + +static u32 *uart; + +static u32 *get_uart_base(void) +{ + /* Add logic here for new platforms, using __macine_arch_type */ + return (u32 *)DAVINCI_UART0_BASE; +} + /* PORT_16C550A, in polled non-fifo mode */ static void putc(char c) { - volatile u32 *uart = (volatile void *) DAVINCI_UART0_BASE; + if (!uart) + uart = get_uart_base(); while (!(uart[UART_LSR] & UART_LSR_THRE)) barrier(); @@ -26,7 +39,9 @@ static void putc(char c) static inline void flush(void) { - volatile u32 *uart = (volatile void *) DAVINCI_UART0_BASE; + if (!uart) + uart = get_uart_base(); + while (!(uart[UART_LSR] & UART_LSR_THRE)) barrier(); } |