Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx> --- arch/mips/mach-ath79/include/mach/debug_ll.h | 29 ++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/arch/mips/mach-ath79/include/mach/debug_ll.h b/arch/mips/mach-ath79/include/mach/debug_ll.h index d3813af..e0c3f79 100644 --- a/arch/mips/mach-ath79/include/mach/debug_ll.h +++ b/arch/mips/mach-ath79/include/mach/debug_ll.h @@ -63,6 +63,35 @@ static inline void PUTC_LL(int ch) * Macros for use in assembly language code */ +#define AR933X_UART_CS_REG 0x04 +#define UART_CS_REG ((KSEG1 | AR933X_UART_BASE) | AR933X_UART_CS_REG) +#define AR933X_UART_CS_IF_MODE_S 2 +#define AR933X_UART_CS_IF_MODE_DCE 2 +#define AR933X_UART_CS_TX_READY_ORIDE BIT(7) +#define AR933X_UART_CS_RX_READY_ORIDE BIT(8) + +/* + * simple uart clock setup + * from u-boot_mod/u-boot/cpu/mips/ar7240/hornet_serial.c + */ +#define BAUD_CLOCK 25000000 +#define CLOCK_SCALE ((BAUD_CLOCK / (16 * CONFIG_BAUDRATE)) - 1) +#define CLOCK_STEP 0x2000 + +#define AR933X_UART_CLOCK_REG 0x08 +#define CLOCK_REG ((KSEG1 | AR933X_UART_BASE) | AR933X_UART_CLOCK_REG) + +.macro debug_ll_ar9331_init +#ifdef CONFIG_DEBUG_LL + + pbl_reg_writel ((AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) \ + | AR933X_UART_CS_TX_READY_ORIDE \ + | AR933X_UART_CS_RX_READY_ORIDE), UART_CS_REG + pbl_reg_writel ((CLOCK_SCALE << 16) | CLOCK_STEP), CLOCK_REG + +#endif /* CONFIG_DEBUG_LL */ +.endm + /* * output a character in a0 */ -- 2.5.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
