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add operating definitions of UART0 to UART5

This commit is contained in:
RTsien 2014-01-11 15:04:19 +08:00
parent 05e9233de6
commit b9c6605876
1 changed files with 202 additions and 29 deletions
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231
bsp/beaglebone/drivers/serial.c
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@ -10,6 +10,7 @@
* Change Logs:
* Date Author Notes
* 2013-07-06 Bernard the first version
* 2014-01-11 RTsien add definitions of UART0 to UART5
*/
#include <rthw.h>
@ -162,14 +163,18 @@ static const struct rt_uart_ops am33xx_uart_ops =
am33xx_getc,
};
/* UART1 device driver structure */
struct serial_ringbuffer uart1_int_rx;
struct am33xx_uart uart1 =
/* UART device driver structure */
struct serial_ringbuffer uart_int_rx[6];
struct am33xx_uart uart[6] =
{
UART0_BASE,
UART0_INT,
{UART0_BASE,UART0_INT},
{UART1_BASE,UART1_INT},
{UART2_BASE,UART2_INT},
{UART3_BASE,UART3_INT},
{UART4_BASE,UART4_INT},
{UART5_BASE,UART5_INT}
};
struct rt_serial_device serial1;
struct rt_serial_device serial[6];
#define write_reg(base, value) *(int*)(base) = value
#define read_reg(base) *(int*)(base)
@ -219,11 +224,46 @@ static void start_uart_clk(void)
;
/* enable uart1 */
#ifdef RT_USING_UART1
CM_PER_UART1_CLKCTRL_REG(prcm_base) |= 0x2;
/* wait for uart1 clk */
while ((CM_PER_UART1_CLKCTRL_REG(prcm_base) & (0x3<<16)) != 0)
;
#endif
#ifdef RT_USING_UART2
CM_PER_UART2_CLKCTRL_REG(prcm_base) |= 0x2;
/* wait for uart2 clk */
while ((CM_PER_UART2_CLKCTRL_REG(prcm_base) & (0x3<<16)) != 0)
;
#endif
#ifdef RT_USING_UART3
CM_PER_UART3_CLKCTRL_REG(prcm_base) |= 0x2;
/* wait for uart3 clk */
while ((CM_PER_UART3_CLKCTRL_REG(prcm_base) & (0x3<<16)) != 0)
;
#endif
#ifdef RT_USING_UART4
CM_PER_UART4_CLKCTRL_REG(prcm_base) |= 0x2;
/* wait for uart4 clk */
while ((CM_PER_UART4_CLKCTRL_REG(prcm_base) & (0x3<<16)) != 0)
;
#endif
#ifdef RT_USING_UART5
CM_PER_UART5_CLKCTRL_REG(prcm_base) |= 0x2;
/* wait for uart5 clk */
while ((CM_PER_UART5_CLKCTRL_REG(prcm_base) & (0x3<<16)) != 0)
;
#endif
/* Waiting for the L4LS UART clock */
while (!(CM_PER_L4LS_CLKSTCTRL_REG(prcm_base) & (1<<10)))
;
@ -236,44 +276,177 @@ static void config_pinmux(void)
ctlm_base = AM33XX_CTLM_REGS;
/* make sure the pin mux is OK for uart */
#ifdef RT_USING_UART1
REG32(ctlm_base + 0x800 + 0x180) = 0x20;
REG32(ctlm_base + 0x800 + 0x184) = 0x00;
#endif
#ifdef RT_USING_UART2
REG32(ctlm_base + 0x800 + 0x150) = 0x20;
REG32(ctlm_base + 0x800 + 0x154) = 0x00;
#endif
#ifdef RT_USING_UART3
REG32(ctlm_base + 0x800 + 0x164) = 0x01;
#endif
#ifdef RT_USING_UART4
REG32(ctlm_base + 0x800 + 0x070) = 0x26;
REG32(ctlm_base + 0x800 + 0x074) = 0x06;
#endif
#ifdef RT_USING_UART5
REG32(ctlm_base + 0x800 + 0x0C4) = 0x24;
REG32(ctlm_base + 0x800 + 0x0C0) = 0x04;
#endif
}
int rt_hw_serial_init(void)
{
struct am33xx_uart* uart;
struct serial_configure config;
uart = &uart1;
uart->base = UART1_BASE;
struct serial_configure config[6];
poweron_per_domain();
start_uart_clk();
config_pinmux();
config.baud_rate = BAUD_RATE_115200;
config.bit_order = BIT_ORDER_LSB;
config.data_bits = DATA_BITS_8;
config.parity = PARITY_NONE;
config.stop_bits = STOP_BITS_1;
config.invert = NRZ_NORMAL;
serial1.ops = &am33xx_uart_ops;
serial1.int_rx = &uart1_int_rx;
serial1.config = config;
#ifdef RT_USING_UART0
config[0].baud_rate = BAUD_RATE_115200;
config[0].bit_order = BIT_ORDER_LSB;
config[0].data_bits = DATA_BITS_8;
config[0].parity = PARITY_NONE;
config[0].stop_bits = STOP_BITS_1;
config[0].invert = NRZ_NORMAL;
serial[0].ops = &am33xx_uart_ops;
serial[0].int_rx = &uart_int_rx[0];
serial[0].config = config[0];
/* enable RX interrupt */
UART_IER_REG(uart->base) = 0x01;
UART_IER_REG(uart[0].base) = 0x01;
/* install ISR */
rt_hw_interrupt_install(uart->irq, am33xx_uart_isr, &serial1, "uart1");
rt_hw_interrupt_control(uart->irq, 0, 0);
rt_hw_interrupt_mask(uart->irq);
/* register UART1 device */
rt_hw_serial_register(&serial1, "uart1",
rt_hw_interrupt_install(uart[0].irq, am33xx_uart_isr, &serial[0], "uart0");
rt_hw_interrupt_control(uart[0].irq, 0, 0);
rt_hw_interrupt_mask(uart[0].irq);
/* register UART0 device */
rt_hw_serial_register(&serial[0], "uart0",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
uart);
&uart[0]);
#endif
#ifdef RT_USING_UART1
config[1].baud_rate = BAUD_RATE_115200;
config[1].bit_order = BIT_ORDER_LSB;
config[1].data_bits = DATA_BITS_8;
config[1].parity = PARITY_NONE;
config[1].stop_bits = STOP_BITS_1;
config[1].invert = NRZ_NORMAL;
serial[1].ops = &am33xx_uart_ops;
serial[1].int_rx = &uart_int_rx[1];
serial[1].config = config[1];
/* enable RX interrupt */
UART_IER_REG(uart[1].base) = 0x01;
/* install ISR */
rt_hw_interrupt_install(uart[1].irq, am33xx_uart_isr, &serial[1], "uart1");
rt_hw_interrupt_control(uart[1].irq, 0, 0);
rt_hw_interrupt_mask(uart[1].irq);
/* register UART0 device */
rt_hw_serial_register(&serial[1], "uart1",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
&uart[1]);
#endif
#ifdef RT_USING_UART2
config[2].baud_rate = BAUD_RATE_115200;
config[2].bit_order = BIT_ORDER_LSB;
config[2].data_bits = DATA_BITS_8;
config[2].parity = PARITY_NONE;
config[2].stop_bits = STOP_BITS_1;
config[2].invert = NRZ_NORMAL;
serial[2].ops = &am33xx_uart_ops;
serial[2].int_rx = &uart_int_rx[2];
serial[2].config = config[2];
/* enable RX interrupt */
UART_IER_REG(uart[2].base) = 0x01;
/* install ISR */
rt_hw_interrupt_install(uart[2].irq, am33xx_uart_isr, &serial[2], "uart2");
rt_hw_interrupt_control(uart[2].irq, 0, 0);
rt_hw_interrupt_mask(uart[2].irq);
/* register UART2 device */
rt_hw_serial_register(&serial[2], "uart2",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
&uart[2]);
#endif
#ifdef RT_USING_UART3
config[3].baud_rate = BAUD_RATE_115200;
config[3].bit_order = BIT_ORDER_LSB;
config[3].data_bits = DATA_BITS_8;
config[3].parity = PARITY_NONE;
config[3].stop_bits = STOP_BITS_1;
config[3].invert = NRZ_NORMAL;
serial[3].ops = &am33xx_uart_ops;
serial[3].int_rx = &uart_int_rx[3];
serial[3].config = config[3];
/* enable RX interrupt */
UART_IER_REG(uart[3].base) = 0x01;
/* install ISR */
rt_hw_interrupt_install(uart[3].irq, am33xx_uart_isr, &serial[3], "uart3");
rt_hw_interrupt_control(uart[3].irq, 0, 0);
rt_hw_interrupt_mask(uart[3].irq);
/* register UART3 device */
rt_hw_serial_register(&serial[3], "uart3",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
&uart[3]);
#endif
#ifdef RT_USING_UART4
config[4].baud_rate = BAUD_RATE_115200;
config[4].bit_order = BIT_ORDER_LSB;
config[4].data_bits = DATA_BITS_8;
config[4].parity = PARITY_NONE;
config[4].stop_bits = STOP_BITS_1;
config[4].invert = NRZ_NORMAL;
serial[4].ops = &am33xx_uart_ops;
serial[4].int_rx = &uart_int_rx[4];
serial[4].config = config[4];
/* enable RX interrupt */
UART_IER_REG(uart[4].base) = 0x01;
/* install ISR */
rt_hw_interrupt_install(uart[4].irq, am33xx_uart_isr, &serial[4], "uart4");
rt_hw_interrupt_control(uart[4].irq, 0, 0);
rt_hw_interrupt_mask(uart[4].irq);
/* register UART4 device */
rt_hw_serial_register(&serial[4], "uart4",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
&uart[4]);
#endif
#ifdef RT_USING_UART5
config[5].baud_rate = BAUD_RATE_115200;
config[5].bit_order = BIT_ORDER_LSB;
config[5].data_bits = DATA_BITS_8;
config[5].parity = PARITY_NONE;
config[5].stop_bits = STOP_BITS_1;
config[5].invert = NRZ_NORMAL;
serial[5].ops = &am33xx_uart_ops;
serial[5].int_rx = &uart_int_rx[5];
serial[5].config = config[5];
/* enable RX interrupt */
UART_IER_REG(uart[5].base) = 0x01;
/* install ISR */
rt_hw_interrupt_install(uart[5].irq, am33xx_uart_isr, &serial[5], "uart5");
rt_hw_interrupt_control(uart[5].irq, 0, 0);
rt_hw_interrupt_mask(uart[5].irq);
/* register UART4 device */
rt_hw_serial_register(&serial[5], "uart5",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
&uart[5]);
#endif
return 0;
}