imx6 串口配置

imx6的板子上，想在原来基础上添加三个串口 你需要修改如下5个文件的内容，分别是board-mx6q_sabresd.h、board-mx6q_sabresd.c、platform-imx-uart.c、 clock.c、mx6.h修改如下：  1.board-mx6q_sabresd.h /*UART2*/ MX6Q_PAD_EIM_D26_UART2_TXD, MX6Q_PAD_EIM_D27_UART2_RXD, /*UART4*/ MX6Q_PAD_KEY_COL0_UART4_RXD, MX6Q_PAD_KEY_ROW0_UART4_TXD, /*UART5 */ MX6Q_PAD_KEY_COL0_UART5_RXD, MX6Q_PAD_KEY_ROW_UART5_TXD, 2.board-mx6q_sabresd.c static inline void mx6q_sabresd_init_uart(void) { imx6q_add_imx_uart(0,NULL); imx6q_add_imx_uart(1,NULL); imx6q_add_imx_uart(2,NULL); imx6q_add_imx_uart(3,NULL); imx6q_add_imx_uart(4,NULL); } 3.platform-imx-uart.c #define imx6q_imx_uart_data_entry(_id, _hwid) imx_imx_uart_lirq_data_entry(MX6Q, _id, _hwid, SZ_4K) imx6q_imx_uart_data_entry(0,1), imx6q_imx_uart_data_entry(1,2), imx6q_imx_uart_data_entry(2,3), imx6q_imx_uart_data_entry(3,4), imx6q_imx_uart_data_entry(4,5), }; 4.clock.c _REGISTER_CLOCK("imx_uart.0", NULL, uart_clk[0]), _REGISTER_CLOCK("imx_uart.1", NULL, uart_clk[0]), _REGISTER_CLOCK("imx_uart.2", NULL, uart_clk[0]), _REGISTER_CLOCK("imx_uart.3", NULL, uart_clk[0]), _REGISTER_CLOCK("imx_uart.4", NULL, uart_clk[0]), 5.mx6.h #define MX6Q_UART1_BASE_ADDR UART1_BASE_ADDR #define MX6Q_UART2_BASE_ADDR UART2_BASE_ADDR #define MX6Q_UART3_BASE_ADDR UART3_BASE_ADDR #define MX6Q_UART4_BASE_ADDR UART4_BASE_ADDR #define MX6Q_UART5_BASE_ADDR UART5_BASE_ADDR #define MX6Q_INT_UART1 MXC_INT_UART1_ANDED #define MX6Q_INT_UART2 MXC_INT_UART2_ANDED #define MX6Q_INT_UART3 MXC_INT_UART3_ANDED #define MX6Q_INT_UART4 MXC_INT_UART4_ANDED #define MX6Q_INT_UART5 MXC_INT_UART5_ANDED