diff options
Diffstat (limited to 'src/soc/samsung/exynos5420/uart.c')
| -rw-r--r-- | src/soc/samsung/exynos5420/uart.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/src/soc/samsung/exynos5420/uart.c b/src/soc/samsung/exynos5420/uart.c index 732a85e7a9..c7a0649f5d 100644 --- a/src/soc/samsung/exynos5420/uart.c +++ b/src/soc/samsung/exynos5420/uart.c @@ -13,34 +13,6 @@ #define RX_FIFO_FULL_MASK (1 << 8) #define TX_FIFO_FULL_MASK (1 << 24) -#if 0 -/* - * The coefficient, used to calculate the baudrate on S5P UARTs is - * calculated as - * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT - * however, section 31.6.11 of the datasheet doesn't recommend using 1 for 1, - * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants: - */ -static const int udivslot[] = { - 0, - 0x0080, - 0x0808, - 0x0888, - 0x2222, - 0x4924, - 0x4a52, - 0x54aa, - 0x5555, - 0xd555, - 0xd5d5, - 0xddd5, - 0xdddd, - 0xdfdd, - 0xdfdf, - 0xffdf, -}; -#endif - static void serial_setbrg_dev(struct s5p_uart *uart) { u32 uclk; @@ -51,18 +23,6 @@ static void serial_setbrg_dev(struct s5p_uart *uart) val = uclk / get_uart_baudrate(); write32(&uart->ubrdiv, val / 16 - 1); - - /* - * FIXME(dhendrix): the original uart.h had a "br_rest" value which - * does not seem relevant to the exynos5420... not entirely sure - * where/if we need to worry about it here - */ -#if 0 - if (s5p_uart_divslot()) - writel(udivslot[val % 16], &uart->rest.slot); - else - writeb(val % 16, &uart->rest.value); -#endif } /* |