[U-Boot] [PATCH 3/3] tegra2: Add support for Compal Paz00 (Toshiba AC100)

Stephen Warren
2012-01-06T22:14:42Z

The Toshiba AC100 (Compal code-name Paz00, aka Dynabook AZ) is a netbook
derived from the NVIDIA Tegra Harmony reference board. It ships with
Android, but is often repurposed to run Linux. This patch adds just enough
support to get a U-Boot serial console, and the ability access built-in
eMMC and the external SD slot.

v2:
* Rebased on latest HEAD, incorporated changes made to other board files.
* Moved board files from board/nvidia to board/compal.
* Switched to correct odmdata value. This required add the previous patch
to fix U-Boot's interpretation of the odmdata RAM size field.
* Removed nvmem= from default Linux kernel command-line; no drivers use the
reserved memory yet, so there's no point reserving it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
MAINTAINERS | 1 +
board/compal/paz00/Makefile | 41 ++++++++++++++++++++++
board/compal/paz00/paz00.c | 81 +++++++++++++++++++++++++++++++++++++++++++
boards.cfg | 1 +
include/configs/paz00.h | 51 +++++++++++++++++++++++++++
5 files changed, 175 insertions(+), 0 deletions(-)
create mode 100644 board/compal/paz00/Makefile
create mode 100644 board/compal/paz00/paz00.c
create mode 100644 include/configs/paz00.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 4bf12b5..9c796e2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -891,6 +891,7 @@ Tom Warren <twarren@nvidia.com>
Stephen Warren <swarren@nvidia.com>

ventana Tegra2 (ARM7 & A9 Dual Core)
+ paz00 Tegra2 (ARM7 & A9 Dual Core)

Thomas Weber <weber@corscience.de>

diff --git a/board/compal/paz00/Makefile b/board/compal/paz00/Makefile
new file mode 100644
index 0000000..488e381
--- /dev/null
+++ b/board/compal/paz00/Makefile
@@ -0,0 +1,41 @@
+#
+# Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
+#
+# 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 and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope 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.
+#
+
+include $(TOPDIR)/config.mk
+
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../../nvidia/common)
+endif
+
+LIB = $(obj)lib$(BOARD).o
+
+COBJS := $(BOARD).o
+COBJS += ../../nvidia/common/board.o
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/compal/paz00/paz00.c b/board/compal/paz00/paz00.c
new file mode 100644
index 0000000..3b48917
--- /dev/null
+++ b/board/compal/paz00/paz00.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/tegra2.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/mmc.h>
+#include <asm/gpio.h>
+#ifdef CONFIG_TEGRA2_MMC
+#include <mmc.h>
+#endif
+
+/*
+ * Routine: gpio_config_uart
+ * Description: Does nothing on Paz00 - no conflict w/SPI.
+ */
+void gpio_config_uart(void)
+{
+}
+
+#ifdef CONFIG_TEGRA2_MMC
+/*
+ * Routine: pin_mux_mmc
+ * Description: setup the pin muxes/tristate values for the SDMMC(s)
+ */
+static void pin_mux_mmc(void)
+{
+ /* SDMMC4: config 3, x8 on 2nd set of pins */
+ pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4);
+ pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4);
+ pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4);
+
+ pinmux_tristate_disable(PINGRP_ATB);
+ pinmux_tristate_disable(PINGRP_GMA);
+ pinmux_tristate_disable(PINGRP_GME);
+
+ /* SDMMC1: SDIO1_CLK, SDIO1_CMD, SDIO1_DAT[3:0] */
+ pinmux_set_func(PINGRP_SDMMC1, PMUX_FUNC_SDIO1);
+
+ pinmux_tristate_disable(PINGRP_SDMMC1);
+
+ /* For power GPIO PV1 */
+ pinmux_tristate_disable(PINGRP_UAC);
+ /* For CD GPIO PI5 */
+ pinmux_tristate_disable(PINGRP_ATC);
+}
+
+/* this is a weak define that we are overriding */
+int board_mmc_init(bd_t *bd)
+{
+ debug("board_mmc_init called\n");
+
+ /* Enable muxes, etc. for SDMMC controllers */
+ pin_mux_mmc();
+
+ debug("board_mmc_init: init eMMC\n");
+ /* init dev 0, eMMC chip, with 4-bit bus */
+ /* The board has an 8-bit bus, but 8-bit doesn't work yet */
+ tegra2_mmc_init(0, 4, -1, -1);
+
+ debug("board_mmc_init: init SD slot\n");
+ /* init dev 3, SD slot, with 4-bit bus */
+ tegra2_mmc_init(3, 4, GPIO_PV1, GPIO_PI5);
+
+ return 0;
+}
+#endif
diff --git a/boards.cfg b/boards.cfg
index 0b32532..8a0343a 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -247,6 +247,7 @@ colibri_pxa270 arm pxa - toradex
jornada arm sa1100
plutux arm armv7 plutux avionic-design tegra2
medcom arm armv7 medcom avionic-design tegra2
+paz00 arm armv7 paz00 compal tegra2
atngw100 avr32 at32ap - atmel at32ap700x
atstk1002 avr32 at32ap atstk1000 atmel at32ap700x
atstk1003 avr32 at32ap atstk1000 atmel at32ap700x
diff --git a/include/configs/paz00.h b/include/configs/paz00.h
new file mode 100644
index 0000000..f53f20e
--- /dev/null
+++ b/include/configs/paz00.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2010,2011, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/sizes.h>
+#include "tegra2-common.h"
+
+/* High-level configuration options */
+#define TEGRA2_SYSMEM "mem=512M at 0M"
+#define V_PROMPT "Tegra2 (Paz00) MOD # "
+#define CONFIG_TEGRA2_BOARD_STRING "Compal Paz00"
+
+/* Board-specific serial config */
+#define CONFIG_SERIAL_MULTI
+#define CONFIG_TEGRA2_ENABLE_UARTA
+#define CONFIG_SYS_NS16550_COM1 NV_PA_APB_UARTA_BASE
+
+#define CONFIG_MACH_TYPE MACH_TYPE_PAZ00
+#define CONFIG_SYS_BOARD_ODMDATA 0x800c0085 /* lp1, 512MB */
+
+#define CONFIG_BOARD_EARLY_INIT_F
+
+/* SD/MMC */
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_TEGRA2_MMC
+#define CONFIG_CMD_MMC
+
+#define CONFIG_DOS_PARTITION
+#define CONFIG_EFI_PARTITION
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+
+/* Environment not stored */
+#define CONFIG_ENV_IS_NOWHERE
+#endif /* __CONFIG_H */
--
1.7.0.4