From f97daaa2317b68aacfbf19bb7566183e17db3349 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Thu, 31 May 2012 01:51:01 +0000 Subject: tegra: add ULPI on USB2 funcmux entry This is needed as a prerequisite for Tegra USB ULPI support within U-Boot. Signed-off-by: Lucas Stach Acked-by: Stephen Warren CC: Stephen Warren CC: Tom Warren Signed-off-by: Tom Warren --- arch/arm/cpu/armv7/tegra2/funcmux.c | 13 ++++++++++++- arch/arm/include/asm/arch-tegra2/funcmux.h | 3 +++ 2 files changed, 15 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/cpu/armv7/tegra2/funcmux.c b/arch/arm/cpu/armv7/tegra2/funcmux.c index 820ba4e902..455d01011f 100644 --- a/arch/arm/cpu/armv7/tegra2/funcmux.c +++ b/arch/arm/cpu/armv7/tegra2/funcmux.c @@ -209,9 +209,20 @@ 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; default: debug("%s: invalid periph_id %d", __func__, id); diff --git a/arch/arm/include/asm/arch-tegra2/funcmux.h b/arch/arm/include/asm/arch-tegra2/funcmux.h index b16c496122..3cbc7d2fe1 100644 --- a/arch/arm/include/asm/arch-tegra2/funcmux.h +++ b/arch/arm/include/asm/arch-tegra2/funcmux.h @@ -51,6 +51,9 @@ enum { FUNCMUX_SDMMC4_ATC_ATD_8BIT = 0, FUNCMUX_SDMMC4_ATB_GMA_4_BIT, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT, + + /* USB configs */ + FUNCMUX_USB2_ULPI = 0, }; /** -- cgit v1.2.1 From f857fff6068fe36a327a0ff6d837412caaf2e07d Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Thu, 31 May 2012 01:51:02 +0000 Subject: tegra: usb: fix wrong error check loop_count runs down from 10000, so the correct condition to error out is ==0. Signed-off-by: Lucas Stach Acked-by: Stephen Warren CC: Stephen Warren CC: Tom Warren Tested-by: Stephen Warren Signed-off-by: Tom Warren --- arch/arm/cpu/armv7/tegra2/usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') 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; -- cgit v1.2.1 From 9cd3f3adf03bdbc5ea4514f00e2cfacfb1ae5bed Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 4 Jun 2012 09:23:55 +0000 Subject: tegra: add enterrcm command Tegra's boot ROM supports a mode whereby code may be downloaded and flash programmed over a USB connection. On dev boards, this is typically entered by holding down a "force recovery" button and resetting the CPU. However, not all boards have such a button (one example is the Compulab Trimslice), so a method to enter RCM from software is useful. This change implements the command "enterrcm" to do this, and enables it for all Tegra boards by default. Even on boards other than Trimslice, controlling this over a UART may be useful, e.g. to allow simple remote control without the need for mechanical button actuators, or hooking up relays/... to the button. Signed-off-by: Stephen Warren Signed-off-by: Tom Warren --- arch/arm/cpu/armv7/tegra2/Makefile | 1 + arch/arm/cpu/armv7/tegra2/cmd_enterrcm.c | 65 ++++++++++++++++++++++++++++++++ 2 files changed, 66 insertions(+) create mode 100644 arch/arm/cpu/armv7/tegra2/cmd_enterrcm.c (limited to 'arch') 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 + * Marius Groeger + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Alex Zuepke + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, + * + * (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 . + */ + +#include +#include +#include + +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", + "" +); -- cgit v1.2.1 From a016e144ed6a7e17774d3371c29544c329459667 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Tue, 12 Jun 2012 08:33:39 +0000 Subject: tegra: add GMC/GMD funcmux entry for SFLASH This is used on TrimSlice. Signed-off-by: Stephen Warren Signed-off-by: Tom Warren --- arch/arm/cpu/armv7/tegra2/funcmux.c | 10 ++++++++++ arch/arm/include/asm/arch-tegra2/funcmux.h | 3 +++ 2 files changed, 13 insertions(+) (limited to 'arch') diff --git a/arch/arm/cpu/armv7/tegra2/funcmux.c b/arch/arm/cpu/armv7/tegra2/funcmux.c index 455d01011f..4a31a4cf0c 100644 --- a/arch/arm/cpu/armv7/tegra2/funcmux.c +++ b/arch/arm/cpu/armv7/tegra2/funcmux.c @@ -224,6 +224,16 @@ int funcmux_select(enum periph_id id, int config) } 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); return -1; diff --git a/arch/arm/include/asm/arch-tegra2/funcmux.h b/arch/arm/include/asm/arch-tegra2/funcmux.h index 3cbc7d2fe1..dcd512f084 100644 --- a/arch/arm/include/asm/arch-tegra2/funcmux.h +++ b/arch/arm/include/asm/arch-tegra2/funcmux.h @@ -54,6 +54,9 @@ enum { /* USB configs */ FUNCMUX_USB2_ULPI = 0, + + /* Serial Flash configs */ + FUNCMUX_SPI1_GMC_GMD = 0, }; /** -- cgit v1.2.1 From 8b3f7bf7ec95816a7d2f89331e8877a351b3ec7c Mon Sep 17 00:00:00 2001 From: Jim Lin Date: Sun, 24 Jun 2012 20:40:57 +0000 Subject: tegra: usb: Fix device enumeration problem of USB1 A known hardware issue of USB1 port where bit 1 (connect status change) of PORTSC register will be set after issuing Port Reset (like "usb reset" in u-boot command line). This will be treated as an error and stops later device enumeration. Therefore we clear that bit after Port Reset in order to proceed later device enumeration. Signed-off-by: Jim Lin Acked-by: Stephen Warren Signed-off-by: Tom Warren --- arch/arm/include/asm/arch-tegra2/tegra2.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/arm/include/asm/arch-tegra2/tegra2.h b/arch/arm/include/asm/arch-tegra2/tegra2.h index 3c8d8a84b5..13d68c017c 100644 --- a/arch/arm/include/asm/arch-tegra2/tegra2.h +++ b/arch/arm/include/asm/arch-tegra2/tegra2.h @@ -45,6 +45,7 @@ #define NV_PA_CSITE_BASE 0x70040000 #define TEGRA_USB1_BASE 0xC5000000 #define TEGRA_USB3_BASE 0xC5008000 +#define TEGRA_USB_ADDR_MASK 0xFFFFC000 #define TEGRA2_SDRC_CS0 NV_PA_SDRAM_BASE #define LOW_LEVEL_SRAM_STACK 0x4000FFFC -- cgit v1.2.1