arm: tegra2: Remove unused low-level Tegra2 UART code

This was used by the AVP in early boot but is no longer used. Unless we
plan to enable it somehow it is not needed. In any case we should try
to use the ns16550 driver instead as it has the same code.

BUG=chromium-os:13228
TEST=Boot on Seaboard

Change-Id: I5a74ce5058eea96bcaf8fd649dcbea3842d1d28c
Reviewed-on: http://gerrit.chromium.org/gerrit/951
Tested-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Anton Staaf <robotboy@chromium.org>

3 files changed, 0 insertions, 107 deletions

diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 5a6011e905..7d221fc40d 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -55,7 +55,6 @@ COBJS-$(CONFIG_S3C24X0_SERIAL) += serial_s3c24x0.o
 COBJS-$(CONFIG_S3C44B0_SERIAL) += serial_s3c44b0.o
 COBJS-$(CONFIG_XILINX_UARTLITE) += serial_xuartlite.o
 COBJS-$(CONFIG_SCIF_CONSOLE) += serial_sh.o
-COBJS-$(CONFIG_TEGRA2) += serial_tegra2.o
 COBJS-$(CONFIG_USB_TTY) += usbtty.o
 
 COBJS	:= $(sort $(COBJS-y))
diff --git a/drivers/serial/serial_tegra2.c b/drivers/serial/serial_tegra2.c
deleted file mode 100644
index 8ff34ea1b5..0000000000
--- a/drivers/serial/serial_tegra2.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- *  (C) Copyright 2010,2011
- *  NVIDIA Corporation <www.nvidia.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <ns16550.h>
-#include <asm/io.h>
-#include <asm/arch/tegra2.h>
-#include "serial_tegra2.h"
-
-static void setup_uart(struct uart_ctlr *u)
-{
-	u32 reg;
-
-	/* Prepare the divisor value */
-	reg = NVRM_PLLP_FIXED_FREQ_KHZ * 1000 / NV_DEFAULT_DEBUG_BAUD / 16;
-
-	/* Set up UART parameters */
-	writel(UART_LCR_DLAB, &u->uart_lcr);
-	writel(reg, &u->uart_thr_dlab_0);
-	writel(0, &u->uart_ier_dlab_0);
-	writel(0, &u->uart_lcr);			/* clear DLAB */
-	writel((UART_FCR_TRIGGER_3 | UART_FCR_FIFO_EN | \
-		UART_FCR_CLEAR_XMIT | UART_FCR_CLEAR_RCVR), &u->uart_iir_fcr);
-	writel(0, &u->uart_ier_dlab_0);
-	writel(UART_LCR_WLS_8, &u->uart_lcr);	/* 8N1 */
-	writel(UART_MCR_RTS, &u->uart_mcr);
-	writel(0, &u->uart_msr);
-	writel(0, &u->uart_spr);
-	writel(0, &u->uart_irda_csr);
-	writel(0, &u->uart_asr);
-	writel((UART_FCR_TRIGGER_3 | UART_FCR_FIFO_EN), &u->uart_iir_fcr);
-
-	/* Flush any old characters out of the RX FIFO */
-	reg = readl(&u->uart_lsr);
-
-	while (reg & UART_LSR_DR) {
-		reg = readl(&u->uart_thr_dlab_0);
-		reg = readl(&u->uart_lsr);
-	}
-}
-
-/*
- * Routine: uart_init
- * Description: init the UART clocks, muxes, and baudrate/parity/etc.
- */
-void uart_init(void)
-{
-	struct uart_ctlr *uart = (struct uart_ctlr *)NV_PA_APB_UARTD_BASE;
-#if defined(CONFIG_TEGRA2_ENABLE_UARTD)
-	setup_uart(uart);
-#endif	/* CONFIG_TEGRA2_ENABLE_UARTD */
-#if defined(CONFIG_TEGRA2_ENABLE_UARTA)
-	uart = (struct uart_ctlr *)NV_PA_APB_UARTA_BASE;
-
-	setup_uart(uart);
-#endif	/* CONFIG_TEGRA2_ENABLE_UARTA */
-}
diff --git a/drivers/serial/serial_tegra2.h b/drivers/serial/serial_tegra2.h
deleted file mode 100644
index 5704800e3b..0000000000
--- a/drivers/serial/serial_tegra2.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- *  (C) Copyright 2010,2011
- *  NVIDIA Corporation <www.nvidia.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef _SERIAL_TEGRA_H_
-#define _SERIAL_TEGRA_H_
-
-#include <asm/arch/uart.h>
-
-#endif /* _SERIAL_TEGRA_H_ */