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38 lines
1.1 KiB
38 lines
1.1 KiB
// SPDX-License-Identifier: GPL-2.0 |
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#include <linux/serial_sci.h> |
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#include <linux/serial_core.h> |
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#include <linux/io.h> |
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#include <cpu/serial.h> |
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#include <cpu/gpio.h> |
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static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag) |
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{ |
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unsigned short data; |
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if (cflag & CRTSCTS) { |
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/* enable RTS/CTS */ |
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if (port->mapbase == 0xa4430000) { /* SCIF0 */ |
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/* Clear PTCR bit 9-2; enable all scif pins but sck */ |
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data = __raw_readw(PORT_PTCR); |
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__raw_writew((data & 0xfc03), PORT_PTCR); |
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} else if (port->mapbase == 0xa4438000) { /* SCIF1 */ |
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/* Clear PVCR bit 9-2 */ |
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data = __raw_readw(PORT_PVCR); |
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__raw_writew((data & 0xfc03), PORT_PVCR); |
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} |
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} else { |
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if (port->mapbase == 0xa4430000) { /* SCIF0 */ |
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/* Clear PTCR bit 5-2; enable only tx and rx */ |
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data = __raw_readw(PORT_PTCR); |
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__raw_writew((data & 0xffc3), PORT_PTCR); |
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} else if (port->mapbase == 0xa4438000) { /* SCIF1 */ |
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/* Clear PVCR bit 5-2 */ |
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data = __raw_readw(PORT_PVCR); |
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__raw_writew((data & 0xffc3), PORT_PVCR); |
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} |
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} |
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} |
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struct plat_sci_port_ops sh7720_sci_port_ops = { |
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.init_pins = sh7720_sci_init_pins, |
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};
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