diff options
Diffstat (limited to 'arch/arm/plat-omap/include')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/serial.h | 6 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/uncompress.h | 8 |
2 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h index de3b10c18127..1ab9fd6abe6d 100644 --- a/arch/arm/plat-omap/include/plat/serial.h +++ b/arch/arm/plat-omap/include/plat/serial.h @@ -16,8 +16,8 @@ #include <linux/init.h> /* - * Memory entry used for the DEBUG_LL UART configuration. See also - * uncompress.h and debug-macro.S. + * Memory entry used for the DEBUG_LL UART configuration, relative to + * start of RAM. See also uncompress.h and debug-macro.S. * * Note that using a memory location for storing the UART configuration * has at least two limitations: @@ -27,7 +27,7 @@ * 2. We assume printascii is called at least once before paging_init, * and addruart has a chance to read OMAP_UART_INFO */ -#define OMAP_UART_INFO (PLAT_PHYS_OFFSET + 0x3ffc) +#define OMAP_UART_INFO_OFS 0x3ffc /* OMAP1 serial ports */ #define OMAP1_UART1_BASE 0xfffb0000 diff --git a/arch/arm/plat-omap/include/plat/uncompress.h b/arch/arm/plat-omap/include/plat/uncompress.h index a067484cc4a2..2f472e989ec6 100644 --- a/arch/arm/plat-omap/include/plat/uncompress.h +++ b/arch/arm/plat-omap/include/plat/uncompress.h @@ -36,7 +36,13 @@ int uart_shift; */ static void set_omap_uart_info(unsigned char port) { - *(volatile u32 *)OMAP_UART_INFO = port; + /* + * Get address of some.bss variable and round it down + * a la CONFIG_AUTO_ZRELADDR. + */ + u32 ram_start = (u32)&uart_shift & 0xf8000000; + u32 *uart_info = (u32 *)(ram_start + OMAP_UART_INFO_OFS); + *uart_info = port; } static void putc(int c) |