diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/cmd_enterrcm.c | 65 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/funcmux.c | 23 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/usb.c | 2 |
4 files changed, 89 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/tegra2/Makefile b/arch/arm/cpu/armv7/tegra2/Makefile index 08c4137a34..80da4536d3 100644 --- a/arch/arm/cpu/armv7/tegra2/Makefile +++ b/arch/arm/cpu/armv7/tegra2/Makefile @@ -39,6 +39,7 @@ COBJS-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o COBJS-$(CONFIG_TEGRA_PMU) += pmu.o COBJS-$(CONFIG_USB_EHCI_TEGRA) += usb.o COBJS-$(CONFIG_TEGRA2_LP0) += crypto.o warmboot.o warmboot_avp.o +COBJS-$(CONFIG_CMD_ENTERRCM) += cmd_enterrcm.o COBJS := $(COBJS-y) SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/arch/arm/cpu/armv7/tegra2/cmd_enterrcm.c b/arch/arm/cpu/armv7/tegra2/cmd_enterrcm.c new file mode 100644 index 0000000000..2fcd107df5 --- /dev/null +++ b/arch/arm/cpu/armv7/tegra2/cmd_enterrcm.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * Derived from code (arch/arm/lib/reset.c) that is: + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke <azu@sysgo.de> + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * (C) Copyright 2004 + * DAVE Srl + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * (C) Copyright 2004 Texas Insturments + * + * 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, see <http://www.gnu.org/licenses/>. + */ + +#include <common.h> +#include <asm/arch/tegra2.h> +#include <asm/arch/pmc.h> + +static int do_enterrcm(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + struct pmc_ctlr *pmc = (struct pmc_ctlr *)TEGRA2_PMC_BASE; + + puts("Entering RCM...\n"); + udelay(50000); + + pmc->pmc_scratch0 = 2; + disable_interrupts(); + reset_cpu(0); + + return 0; +} + +U_BOOT_CMD( + enterrcm, 1, 0, do_enterrcm, + "reset Tegra and enter USB Recovery Mode", + "" +); diff --git a/arch/arm/cpu/armv7/tegra2/funcmux.c b/arch/arm/cpu/armv7/tegra2/funcmux.c index 820ba4e902..4a31a4cf0c 100644 --- a/arch/arm/cpu/armv7/tegra2/funcmux.c +++ b/arch/arm/cpu/armv7/tegra2/funcmux.c @@ -209,9 +209,30 @@ int funcmux_select(enum periph_id id, int config) pinmux_set_func(grp[i], PMUX_FUNC_KBC); pinmux_set_pullupdown(grp[i], PMUX_PULL_UP); } + } + break; - break; + case PERIPH_ID_USB2: + if (config == FUNCMUX_USB2_ULPI) { + pinmux_set_func(PINGRP_UAA, PMUX_FUNC_ULPI); + pinmux_set_func(PINGRP_UAB, PMUX_FUNC_ULPI); + pinmux_set_func(PINGRP_UDA, PMUX_FUNC_ULPI); + + pinmux_tristate_disable(PINGRP_UAA); + pinmux_tristate_disable(PINGRP_UAB); + pinmux_tristate_disable(PINGRP_UDA); } + break; + + case PERIPH_ID_SPI1: + if (config == FUNCMUX_SPI1_GMC_GMD) { + pinmux_set_func(PINGRP_GMC, PMUX_FUNC_SFLASH); + pinmux_set_func(PINGRP_GMD, PMUX_FUNC_SFLASH); + + pinmux_tristate_disable(PINGRP_GMC); + pinmux_tristate_disable(PINGRP_GMD); + } + break; default: debug("%s: invalid periph_id %d", __func__, id); diff --git a/arch/arm/cpu/armv7/tegra2/usb.c b/arch/arm/cpu/armv7/tegra2/usb.c index c80de7f6a3..5f2b243750 100644 --- a/arch/arm/cpu/armv7/tegra2/usb.c +++ b/arch/arm/cpu/armv7/tegra2/usb.c @@ -290,7 +290,7 @@ static int init_usb_controller(struct fdt_usb *config, break; udelay(1); } - if (loop_count == 100000) + if (!loop_count) return -1; return 0; |