serial: mcfuart: renaming to a more appropriate name

[oweals/u-boot.git] / drivers / serial / mcfuart.c

diff --git a/drivers/serial/mcfuart.c b/drivers/serial/mcfuart.c
deleted file mode 100644 (file)
index b599064..0000000
--- a/drivers/serial/mcfuart.c
+++ /dev/null
@@ -1,179 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2004-2007 Freescale Semiconductor, Inc.
- * TsiChung Liew, Tsi-Chung.Liew@freescale.com.
- *
- * Modified to add device model (DM) support
- * (C) Copyright 2015  Angelo Dureghello <angelo@sysam.it>
- *
- * Modified to add DM and fdt support, removed non DM code
- * (C) Copyright 2018  Angelo Dureghello <angelo@sysam.it>
- */
-
-/*
- * Minimal serial functions needed to use one of the uart ports
- * as serial console interface.
- */
-
-#include <common.h>
-#include <dm.h>
-#include <dm/platform_data/serial_coldfire.h>
-#include <serial.h>
-#include <linux/compiler.h>
-#include <asm/immap.h>
-#include <asm/uart.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-extern void uart_port_conf(int port);
-
-static int mcf_serial_init_common(uart_t *uart, int port_idx, int baudrate)
-{
-       u32 counter;
-
-       uart_port_conf(port_idx);
-
-       /* write to SICR: SIM2 = uart mode,dcd does not affect rx */
-       writeb(UART_UCR_RESET_RX, &uart->ucr);
-       writeb(UART_UCR_RESET_TX, &uart->ucr);
-       writeb(UART_UCR_RESET_ERROR, &uart->ucr);
-       writeb(UART_UCR_RESET_MR, &uart->ucr);
-       __asm__("nop");
-
-       writeb(0, &uart->uimr);
-
-       /* write to CSR: RX/TX baud rate from timers */
-       writeb(UART_UCSR_RCS_SYS_CLK | UART_UCSR_TCS_SYS_CLK, &uart->ucsr);
-
-       writeb(UART_UMR_BC_8 | UART_UMR_PM_NONE, &uart->umr);
-       writeb(UART_UMR_SB_STOP_BITS_1, &uart->umr);
-
-       /* Setting up BaudRate */
-       counter = (u32) ((gd->bus_clk / 32) + (baudrate / 2));
-       counter = counter / baudrate;
-
-       /* write to CTUR: divide counter upper byte */
-       writeb((u8)((counter & 0xff00) >> 8), &uart->ubg1);
-       /* write to CTLR: divide counter lower byte */
-       writeb((u8)(counter & 0x00ff), &uart->ubg2);
-
-       writeb(UART_UCR_RX_ENABLED | UART_UCR_TX_ENABLED, &uart->ucr);
-
-       return (0);
-}
-
-static void mcf_serial_setbrg_common(uart_t *uart, int baudrate)
-{
-       u32 counter;
-
-       /* Setting up BaudRate */
-       counter = (u32) ((gd->bus_clk / 32) + (baudrate / 2));
-       counter = counter / baudrate;
-
-       /* write to CTUR: divide counter upper byte */
-       writeb(((counter & 0xff00) >> 8), &uart->ubg1);
-       /* write to CTLR: divide counter lower byte */
-       writeb((counter & 0x00ff), &uart->ubg2);
-
-       writeb(UART_UCR_RESET_RX, &uart->ucr);
-       writeb(UART_UCR_RESET_TX, &uart->ucr);
-
-       writeb(UART_UCR_RX_ENABLED | UART_UCR_TX_ENABLED, &uart->ucr);
-}
-
-static int coldfire_serial_probe(struct udevice *dev)
-{
-       struct coldfire_serial_platdata *plat = dev->platdata;
-
-       plat->port = dev->seq;
-
-       return mcf_serial_init_common((uart_t *)plat->base,
-                                               plat->port, plat->baudrate);
-}
-
-static int coldfire_serial_putc(struct udevice *dev, const char ch)
-{
-       struct coldfire_serial_platdata *plat = dev->platdata;
-       uart_t *uart = (uart_t *)plat->base;
-
-       /* Wait for last character to go. */
-       if (!(readb(&uart->usr) & UART_USR_TXRDY))
-               return -EAGAIN;
-
-       writeb(ch, &uart->utb);
-
-       return 0;
-}
-
-static int coldfire_serial_getc(struct udevice *dev)
-{
-       struct coldfire_serial_platdata *plat = dev->platdata;
-       uart_t *uart = (uart_t *)(plat->base);
-
-       /* Wait for a character to arrive. */
-       if (!(readb(&uart->usr) & UART_USR_RXRDY))
-               return -EAGAIN;
-
-       return readb(&uart->urb);
-}
-
-int coldfire_serial_setbrg(struct udevice *dev, int baudrate)
-{
-       struct coldfire_serial_platdata *plat = dev->platdata;
-       uart_t *uart = (uart_t *)(plat->base);
-
-       mcf_serial_setbrg_common(uart, baudrate);
-
-       return 0;
-}
-
-static int coldfire_serial_pending(struct udevice *dev, bool input)
-{
-       struct coldfire_serial_platdata *plat = dev->platdata;
-       uart_t *uart = (uart_t *)(plat->base);
-
-       if (input)
-               return readb(&uart->usr) & UART_USR_RXRDY ? 1 : 0;
-       else
-               return readb(&uart->usr) & UART_USR_TXRDY ? 0 : 1;
-
-       return 0;
-}
-
-static int coldfire_ofdata_to_platdata(struct udevice *dev)
-{
-       struct coldfire_serial_platdata *plat = dev_get_platdata(dev);
-       fdt_addr_t addr_base;
-
-       addr_base = devfdt_get_addr(dev);
-       if (addr_base == FDT_ADDR_T_NONE)
-               return -ENODEV;
-
-       plat->base = (uint32_t)addr_base;
-       plat->baudrate = gd->baudrate;
-
-       return 0;
-}
-
-static const struct dm_serial_ops coldfire_serial_ops = {
-       .putc = coldfire_serial_putc,
-       .pending = coldfire_serial_pending,
-       .getc = coldfire_serial_getc,
-       .setbrg = coldfire_serial_setbrg,
-};
-
-static const struct udevice_id coldfire_serial_ids[] = {
-       { .compatible = "fsl,mcf-uart" },
-       { }
-};
-
-U_BOOT_DRIVER(serial_coldfire) = {
-       .name = "serial_coldfire",
-       .id = UCLASS_SERIAL,
-       .of_match = coldfire_serial_ids,
-       .ofdata_to_platdata = coldfire_ofdata_to_platdata,
-       .platdata_auto_alloc_size = sizeof(struct coldfire_serial_platdata),
-       .probe = coldfire_serial_probe,
-       .ops = &coldfire_serial_ops,
-       .flags = DM_FLAG_PRE_RELOC,
-};