diff options
Diffstat (limited to 'arch/arm/plat-s3c/include/plat/uncompress.h')
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/uncompress.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/arch/arm/plat-s3c/include/plat/uncompress.h b/arch/arm/plat-s3c/include/plat/uncompress.h index 4df006b9cc1..6061de87f22 100644 --- a/arch/arm/plat-s3c/include/plat/uncompress.h +++ b/arch/arm/plat-s3c/include/plat/uncompress.h @@ -28,7 +28,7 @@ static void arch_detect_cpu(void); /* defines for UART registers */ #include <plat/regs-serial.h> -#include <asm/plat-s3c/regs-watchdog.h> +#include <plat/regs-watchdog.h> /* working in physical space... */ #undef S3C2410_WDOGREG @@ -37,7 +37,7 @@ static void arch_detect_cpu(void); /* how many bytes we allow into the FIFO at a time in FIFO mode */ #define FIFO_MAX (14) -#define uart_base S3C24XX_PA_UART + (0x4000*CONFIG_S3C_LOWLEVEL_UART_PORT) +#define uart_base S3C_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT) static __inline__ void uart_wr(unsigned int reg, unsigned int val) @@ -139,6 +139,28 @@ static void arch_decomp_error(const char *x) static void error(char *err); +#ifdef CONFIG_S3C_BOOT_UART_FORCE_FIFO +static inline void arch_enable_uart_fifo(void) +{ + u32 fifocon = uart_rd(S3C2410_UFCON); + + if (!(fifocon & S3C2410_UFCON_FIFOMODE)) { + fifocon |= S3C2410_UFCON_RESETBOTH; + uart_wr(S3C2410_UFCON, fifocon); + + /* wait for fifo reset to complete */ + while (1) { + fifocon = uart_rd(S3C2410_UFCON); + if (!(fifocon & S3C2410_UFCON_RESETBOTH)) + break; + } + } +} +#else +#define arch_enable_uart_fifo() do { } while(0) +#endif + + static void arch_decomp_setup(void) { @@ -149,6 +171,12 @@ arch_decomp_setup(void) arch_detect_cpu(); arch_decomp_wdog_start(); + + /* Enable the UART FIFOs if they where not enabled and our + * configuration says we should turn them on. + */ + + arch_enable_uart_fifo(); } |