SAMA5D4: Add support for UART4
This commit is contained in:
Gregory Nutt
parent
e91c27ca5a
commit
3e3d3dff9b
@ -187,6 +187,26 @@
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#define SAM_USART3_WPMR (SAM_USART3_VBASE+SAM_UART_WPMR_OFFSET)
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#define SAM_USART3_WPSR (SAM_USART3_VBASE+SAM_UART_WPSR_OFFSET)
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#ifdef CONFIG_SAMA5_HAVE_USART4
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# define SAM_USART4_CR (SAM_USART4_VBASE+SAM_UART_CR_OFFSET)
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# define SAM_USART4_MR (SAM_USART4_VBASE+SAM_UART_MR_OFFSET)
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# define SAM_USART4_IER (SAM_USART4_VBASE+SAM_UART_IER_OFFSET)
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# define SAM_USART4_IDR (SAM_USART4_VBASE+SAM_UART_IDR_OFFSET)
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# define SAM_USART4_IMR (SAM_USART4_VBASE+SAM_UART_IMR_OFFSET)
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# define SAM_USART4_SR (SAM_USART4_VBASE+SAM_UART_SR_OFFSET)
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# define SAM_USART4_RHR (SAM_USART4_VBASE+SAM_UART_RHR_OFFSET)
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# define SAM_USART4_THR (SAM_USART4_VBASE+SAM_UART_THR_OFFSET)
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# define SAM_USART4_BRGR (SAM_USART4_VBASE+SAM_UART_BRGR_OFFSET)
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# define SAM_USART4_RTOR (SAM_USART4_VBASE+SAM_UART_RTOR_OFFSET)
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# define SAM_USART4_TTGR (SAM_USART4_VBASE+SAM_UART_TTGR_OFFSET)
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# define SAM_USART4_FIDI (SAM_USART4_VBASE+SAM_UART_FIDI_OFFSET)
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# define SAM_USART4_NER (SAM_USART4_VBASE+SAM_UART_NER_OFFSET)
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# define SAM_USART4_IFR (SAM_USART4_VBASE+SAM_UART_IFR_OFFSET)
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# define SAM_USART4_MAN (SAM_USART4_VBASE+SAM_UART_MAN_OFFSET)
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# define SAM_USART4_WPMR (SAM_USART4_VBASE+SAM_UART_WPMR_OFFSET)
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# define SAM_USART4_WPSR (SAM_USART4_VBASE+SAM_UART_WPSR_OFFSET)
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#endif
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/* UART register bit definitions ****************************************************************/
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/* UART Control Register */
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@ -86,6 +86,9 @@
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#ifndef CONFIG_USART3_ISUART
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# undef CONFIG_SAMA5_USART3
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#endif
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#ifndef CONFIG_USART4_ISUART
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# undef CONFIG_SAMA5_USART4
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#endif
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/* Is there a USART/USART enabled? */
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@ -93,8 +96,9 @@
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# define HAVE_UART
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#endif
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#if defined(CONFIG_SAMA5_USART0) || defined(CONFIG_SAMA5_USART1) ||\
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defined(CONFIG_SAMA5_USART2) || defined(CONFIG_SAMA5_USART3)
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#if defined(CONFIG_SAMA5_USART0) || defined(CONFIG_SAMA5_USART1) || \
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defined(CONFIG_SAMA5_USART2) || defined(CONFIG_SAMA5_USART3) || \
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defined(CONFIG_SAMA5_USART4)
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# define HAVE_USART
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#endif
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@ -107,6 +111,7 @@
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# undef HAVE_UART_CONSOLE
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#elif defined(CONFIG_UART0_SERIAL_CONSOLE) && defined(CONFIG_SAMA5_UART0)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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@ -115,6 +120,7 @@
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#elif defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_SAMA5_UART1)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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@ -123,6 +129,7 @@
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#elif defined(CONFIG_USART0_SERIAL_CONSOLE) && defined(CONFIG_SAMA5_USART0)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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@ -131,6 +138,7 @@
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#elif defined(CONFIG_USART1_SERIAL_CONSOLE) && defined(CONFIG_SAMA5_USART1)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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@ -139,6 +147,7 @@
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# undef CONFIG_USART0_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#elif defined(CONFIG_USART2_SERIAL_CONSOLE) && defined(CONFIG_SAMA5_USART2)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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@ -147,6 +156,7 @@
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# undef CONFIG_USART0_SERIAL_CONSOLE
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#elif defined(CONFIG_USART3_SERIAL_CONSOLE) && defined(CONFIG_SAMA5_USART3)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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@ -155,6 +165,16 @@
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# undef CONFIG_USART0_SERIAL_CONSOLE
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#elif defined(CONFIG_USART4_SERIAL_CONSOLE) && defined(CONFIG_SAMA4_USART4)
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# undef CONFIG_SAMA5_DBGU_CONSOLE
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# undef CONFIG_UART0_SERIAL_CONSOLE
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# undef CONFIG_UART1_SERIAL_CONSOLE
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# undef CONFIG_USART0_SERIAL_CONSOLE
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# define HAVE_UART_CONSOLE 1
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#else
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# warning "No valid CONFIG_USARTn_SERIAL_CONSOLE Setting"
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@ -165,6 +185,7 @@
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# undef CONFIG_USART1_SERIAL_CONSOLE
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# undef CONFIG_USART2_SERIAL_CONSOLE
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# undef CONFIG_USART3_SERIAL_CONSOLE
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# undef CONFIG_USART4_SERIAL_CONSOLE
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# undef HAVE_UART_CONSOLE
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#endif
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@ -179,12 +200,13 @@
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#undef TTYS3_DEV
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#undef TTYS4_DEV
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#undef TTYS5_DEV
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#undef TTYS6_DEV
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#if defined(HAVE_UART) || defined(HAVE_USART)
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/* Which UART/USART with be tty0/console and which tty1? tty2? tty3? tty4? tty5? */
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/* Which UART/USART with be tty0/console and which tty1? tty2? tty3? tty4? tty5? tty6? */
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/* First pick the console and ttys0. This could be any of UART0-1, USART0-3 */
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/* First pick the console and ttyS0. This could be any of UART0-1, USART0-4 */
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#if defined(CONFIG_UART0_SERIAL_CONSOLE)
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# define CONSOLE_DEV g_uart0port /* UART0 is console */
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@ -208,7 +230,12 @@
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# define USART2_ASSIGNED 1
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#elif defined(CONFIG_USART3_SERIAL_CONSOLE)
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# define CONSOLE_DEV g_usart3port /* USART3 is console */
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# define TTYS5_DEV g_usart3port /* USART3 is ttyS0 */
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# define TTYS0_DEV g_usart3port /* USART3 is ttyS0 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_USART4_SERIAL_CONSOLE)
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# define CONSOLE_DEV g_usart4port /* USART4 is console */
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# define TTYS0_DEV g_usart4port /* USART4 is ttyS0 */
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# define USART4_ASSIGNED 1
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#else
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# undef CONSOLE_DEV /* No console */
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# if defined(CONFIG_SAMA5_UART0)
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@ -229,10 +256,13 @@
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# elif defined(CONFIG_SAMA5_USART3)
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# define TTYS0_DEV g_usart3port /* USART3 is ttyS0 */
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# define USART3_ASSIGNED 1
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# elif defined(CONFIG_SAMA5_USART4)
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# define TTYS0_DEV g_usart4port /* USART4 is ttyS0 */
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# define USART4_ASSIGNED 4
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# endif
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#endif
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/* Pick ttys1. This could be any of UART0-1, USART0-3 excluding the console UART. */
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/* Pick ttyS1. This could be any of UART0-1, USART0-4 excluding the console UART. */
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#if defined(CONFIG_SAMA5_UART0) && !defined(UART0_ASSIGNED)
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# define TTYS1_DEV g_uart0port /* UART0 is ttyS1 */
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@ -252,10 +282,13 @@
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#elif defined(CONFIG_SAMA5_USART3) && !defined(USART3_ASSIGNED)
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# define TTYS1_DEV g_usart3port /* USART3 is ttyS1 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_SAMA5_USART4) && !defined(USART4_ASSIGNED)
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# define TTYS1_DEV g_usart4port /* USART4 is ttyS1 */
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# define USART4_ASSIGNED 1
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#endif
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/* Pick ttys2. This could be one of UART1 or USART0-3. It can't be UART0
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* because that was either assigned as ttyS0 or ttys1. One of these
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/* Pick ttys2. This could be one of UART1 or USART0-4. It can't be UART0
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* because that was either assigned as ttyS0 or ttyS1. One of these
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* could also be the console.
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*/
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@ -274,11 +307,14 @@
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#elif defined(CONFIG_SAMA5_USART3) && !defined(USART3_ASSIGNED)
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# define TTYS2_DEV g_usart3port /* USART3 is ttyS2 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_SAMA5_USART4) && !defined(USART4_ASSIGNED)
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# define TTYS2_DEV g_usart4port /* USART4 is ttyS2 */
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# define USART4_ASSIGNED 1
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#endif
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/* Pick ttys3. This could be one of USART0-3. It can't be UART0-1 because
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/* Pick ttys3. This could be one of USART0-4. It can't be UART0-1 because
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* those have already been assigned to ttsyS0, 1, or 2. One of
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* USART0-3 could also be the console.
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* USART0-4 could also be the console.
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*/
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#if defined(CONFIG_SAMA5_USART0) && !defined(USART0_ASSIGNED)
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@ -293,11 +329,14 @@
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#elif defined(CONFIG_SAMA5_USART3) && !defined(USART3_ASSIGNED)
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# define TTYS3_DEV g_usart3port /* USART3 is ttyS3 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_SAMA5_USART4) && !defined(USART4_ASSIGNED)
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# define TTYS3_DEV g_usart4port /* USART4 is ttyS3 */
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# define USART4_ASSIGNED 1
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#endif
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/* Pick ttys4. This could be one of USART1-3. It can't be UART0-1 or USART0
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/* Pick ttyS4. This could be one of USART1-4. It can't be UART0-1 or USART0
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* because those have already been assigned to ttsyS0, 1, 2 or 3. One of
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* USART1-3 could also be the console.
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* USART1-4 could also be the console.
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*/
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#if defined(CONFIG_SAMA5_USART1) && !defined(USART1_ASSIGNED)
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@ -309,11 +348,14 @@
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#elif defined(CONFIG_SAMA5_USART3) && !defined(USART3_ASSIGNED)
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# define TTYS4_DEV g_usart3port /* USART3 is ttyS4 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_SAMA5_USART4) && !defined(USART4_ASSIGNED)
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# define TTYS4_DEV g_usart4port /* USART4 is ttyS4 */
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# define USART4_ASSIGNED 1
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#endif
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/* Pick ttys5. This could be one of USART2-3. It can't be UART0-1 or
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/* Pick ttyS5. This could be one of USART2-4. It can't be UART0-1 or
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* USART0-1 because those have already been assigned to ttsyS0, 1, 2,
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* 3 or 4. One of USART2-3 could also be the console.
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* 3 or 4. One of USART2-4 could also be the console.
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*/
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#if defined(CONFIG_SAMA5_USART2) && !defined(USART2_ASSIGNED)
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@ -322,6 +364,22 @@
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#elif defined(CONFIG_SAMA5_USART3) && !defined(USART3_ASSIGNED)
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# define TTYS5_DEV g_usart3port /* USART3 is ttyS5 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_SAMA5_USART4) && !defined(USART4_ASSIGNED)
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# define TTYS5_DEV g_usart3port /* USART4 is ttyS5 */
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# define USART4_ASSIGNED 1
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#endif
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/* Pick ttyS6. This could be one of USART3-4. It can't be UART0-1 or
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* USART0-2 because those have already been assigned to ttsyS0, 1, 2,
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* 3, 4, or 5. One of USART3-4 could also be the console.
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*/
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#if defined(CONFIG_SAMA5_USART3) && !defined(USART3_ASSIGNED)
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# define TTYS6_DEV g_usart3port /* USART3 is ttyS6 */
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# define USART3_ASSIGNED 1
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#elif defined(CONFIG_SAMA5_USART4) && !defined(USART4_ASSIGNED)
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# define TTYS6_DEV g_usart3port /* USART4 is ttyS6 */
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# define USART4_ASSIGNED 1
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#endif
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/* The UART/USART modules are driven by the main clock (MCK). */
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@ -411,6 +469,10 @@ static char g_usart2txbuffer[CONFIG_USART2_TXBUFSIZE];
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static char g_usart3rxbuffer[CONFIG_USART3_RXBUFSIZE];
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static char g_usart3txbuffer[CONFIG_USART3_TXBUFSIZE];
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#endif
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#ifdef CONFIG_SAMA5_USART4
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static char g_usart4rxbuffer[CONFIG_USART4_RXBUFSIZE];
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static char g_usart4txbuffer[CONFIG_USART4_TXBUFSIZE];
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#endif
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/* This describes the state of the UART0 port. */
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@ -592,6 +654,36 @@ static uart_dev_t g_usart3port =
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};
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#endif
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/* This describes the state of the USART4 port. */
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#ifdef CONFIG_SAMA5_USART4
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static struct up_dev_s g_usart4priv =
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{
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.usartbase = SAM_USART4_VBASE,
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.baud = CONFIG_USART4_BAUD,
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.irq = SAM_IRQ_USART4,
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.parity = CONFIG_USART4_PARITY,
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.bits = CONFIG_USART4_BITS,
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.stopbits2 = CONFIG_USART4_2STOP,
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};
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static uart_dev_t g_usart4port =
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{
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.recv =
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{
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.size = CONFIG_USART4_RXBUFSIZE,
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.buffer = g_usart4rxbuffer,
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},
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.xmit =
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{
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.size = CONFIG_USART4_TXBUFSIZE,
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.buffer = g_usart4txbuffer,
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},
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.ops = &g_uart_ops,
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.priv = &g_usart4priv,
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};
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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@ -874,6 +966,13 @@ static int up_interrupt(int irq, void *context)
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dev = &g_usart3port;
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}
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else
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#endif
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#ifdef CONFIG_SAMA5_USART4
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if (g_usart4priv.irq == irq)
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{
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dev = &g_usart4port;
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}
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else
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#endif
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{
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PANIC();
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@ -1157,6 +1256,9 @@ void sam_earlyserialinit(void)
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#ifdef TTYS5_DEV
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up_disableallints(TTYS5_DEV.priv);
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#endif
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#ifdef TTYS6_DEV
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up_disableallints(TTYS6_DEV.priv);
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#endif
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/* Configuration whichever one is the console */
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@ -1203,6 +1305,9 @@ void up_serialinit(void)
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#ifdef TTYS5_DEV
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(void)uart_register("/dev/ttyS5", &TTYS5_DEV);
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#endif
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#ifdef TTYS6_DEV
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(void)uart_register("/dev/ttyS6", &TTYS6_DEV);
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#endif
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/* Register the DBGU as well */
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