[U-Boot] [PATCH 3/6] dm: freescale: serial: Drop serial_imx serial driver
Simon Glass
sjg at chromium.org
Sun Jan 31 17:16:14 CET 2016
This does not appear to be used, and has not been converted to driver model
by the deadline (doc/driver-model/serial-howto.txt).
Signed-off-by: Simon Glass <sjg at chromium.org>
---
drivers/serial/Makefile | 1 -
drivers/serial/serial_imx.c | 223 --------------------------------------------
2 files changed, 224 deletions(-)
delete mode 100644 drivers/serial/serial_imx.c
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index ba11dd6..6d79e46 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -24,7 +24,6 @@ obj-$(CONFIG_LPC32XX_HSUART) += lpc32xx_hsuart.o
obj-$(CONFIG_MCFUART) += mcfuart.o
obj-$(CONFIG_SYS_NS16550) += ns16550.o
obj-$(CONFIG_S5P) += serial_s5p.o
-obj-$(CONFIG_IMX_SERIAL) += serial_imx.o
obj-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o
obj-$(CONFIG_MXC_UART) += serial_mxc.o
obj-$(CONFIG_PXA_SERIAL) += serial_pxa.o
diff --git a/drivers/serial/serial_imx.c b/drivers/serial/serial_imx.c
deleted file mode 100644
index d43a5fe..0000000
--- a/drivers/serial/serial_imx.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * (c) 2004 Sascha Hauer <sascha at saschahauer.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/arch/imx-regs.h>
-#include <serial.h>
-#include <linux/compiler.h>
-
-#if defined CONFIG_IMX_SERIAL1
-#define UART_BASE IMX_UART1_BASE
-#elif defined CONFIG_IMX_SERIAL2
-#define UART_BASE IMX_UART2_BASE
-#else
-#error "define CONFIG_IMX_SERIAL1, CONFIG_IMX_SERIAL2 or CONFIG_IMX_SERIAL_NONE"
-#endif
-
-struct imx_serial {
- volatile uint32_t urxd[16];
- volatile uint32_t utxd[16];
- volatile uint32_t ucr1;
- volatile uint32_t ucr2;
- volatile uint32_t ucr3;
- volatile uint32_t ucr4;
- volatile uint32_t ufcr;
- volatile uint32_t usr1;
- volatile uint32_t usr2;
- volatile uint32_t uesc;
- volatile uint32_t utim;
- volatile uint32_t ubir;
- volatile uint32_t ubmr;
- volatile uint32_t ubrc;
- volatile uint32_t bipr[4];
- volatile uint32_t bmpr[4];
- volatile uint32_t uts;
-};
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static void imx_serial_setbrg(void)
-{
- serial_init();
-}
-
-extern void imx_gpio_mode(int gpio_mode);
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- *
- */
-static int imx_serial_init(void)
-{
- volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
- unsigned int ufcr_rfdiv;
- unsigned int refclk;
-
-#ifdef CONFIG_IMX_SERIAL1
- imx_gpio_mode(PC11_PF_UART1_TXD);
- imx_gpio_mode(PC12_PF_UART1_RXD);
-#else
- imx_gpio_mode(PB30_PF_UART2_TXD);
- imx_gpio_mode(PB31_PF_UART2_RXD);
-#endif
-
- /* Disable UART */
- base->ucr1 &= ~UCR1_UARTEN;
-
- /* Set to default POR state */
-
- base->ucr1 = 0x00000004;
- base->ucr2 = 0x00000000;
- base->ucr3 = 0x00000000;
- base->ucr4 = 0x00008040;
- base->uesc = 0x0000002B;
- base->utim = 0x00000000;
- base->ubir = 0x00000000;
- base->ubmr = 0x00000000;
- base->uts = 0x00000000;
- /* Set clocks */
- base->ucr4 |= UCR4_REF16;
-
- /* Configure FIFOs */
- base->ufcr = 0xa81;
-
- /* set the baud rate.
- *
- * baud * 16 x
- * --------- = -
- * refclk y
- *
- * x - 1 = UBIR
- * y - 1 = UBMR
- *
- * each register is 16 bits wide. refclk max is 96 MHz
- *
- */
-
- ufcr_rfdiv = ((base->ufcr) & UFCR_RFDIV) >> 7;
- if (ufcr_rfdiv == 6)
- ufcr_rfdiv = 7;
- else
- ufcr_rfdiv = 6 - ufcr_rfdiv;
-
- refclk = get_PERCLK1();
- refclk /= ufcr_rfdiv;
-
- /* Set the numerator value minus one of the BRM ratio */
- base->ubir = (gd->baudrate / 100) - 1;
-
- /* Set the denominator value minus one of the BRM ratio */
- base->ubmr = (refclk/(16 * 100)) - 1;
-
- /* Set to 8N1 */
- base->ucr2 &= ~UCR2_PREN;
- base->ucr2 |= UCR2_WS;
- base->ucr2 &= ~UCR2_STPB;
-
- /* Ignore RTS */
- base->ucr2 |= UCR2_IRTS;
-
- /* Enable UART */
- base->ucr1 |= UCR1_UARTEN | UCR1_UARTCLKEN;
-
- /* Enable FIFOs */
- base->ucr2 |= UCR2_SRST | UCR2_RXEN | UCR2_TXEN;
-
- /* Clear status flags */
- base->usr2 |= USR2_ADET |
- USR2_DTRF |
- USR2_IDLE |
- USR2_IRINT |
- USR2_WAKE |
- USR2_RTSF |
- USR2_BRCD |
- USR2_ORE;
-
- /* Clear status flags */
- base->usr1 |= USR1_PARITYERR |
- USR1_RTSD |
- USR1_ESCF |
- USR1_FRAMERR |
- USR1_AIRINT |
- USR1_AWAKE;
- return (0);
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is successful, the character read is
- * written into its argument c.
- */
-static int imx_serial_getc(void)
-{
- volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
- unsigned char ch;
-
- while(base->uts & UTS_RXEMPTY);
-
- ch = (char)base->urxd[0];
-
- return ch;
-}
-
-#ifdef CONFIG_HWFLOW
-static int hwflow = 0; /* turned off by default */
-int hwflow_onoff(int on)
-{
-}
-#endif
-
-/*
- * Output a single byte to the serial port.
- */
-static void imx_serial_putc(const char c)
-{
- volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
-
- /* Wait for Tx FIFO not full */
- while (base->uts & UTS_TXFULL);
-
- base->utxd[0] = c;
-
- /* If \n, also do \r */
- if (c == '\n')
- serial_putc ('\r');
-}
-
-/*
- * Test whether a character is in the RX buffer
- */
-static int imx_serial_tstc(void)
-{
- volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
-
- /* If receive fifo is empty, return false */
- if (base->uts & UTS_RXEMPTY)
- return 0;
- return 1;
-}
-
-static struct serial_device imx_serial_drv = {
- .name = "imx_serial",
- .start = imx_serial_init,
- .stop = NULL,
- .setbrg = imx_serial_setbrg,
- .putc = imx_serial_putc,
- .puts = default_serial_puts,
- .getc = imx_serial_getc,
- .tstc = imx_serial_tstc,
-};
-
-void imx_serial_initialize(void)
-{
- serial_register(&imx_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
- return &imx_serial_drv;
-}
--
2.7.0.rc3.207.g0ac5344
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