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| author | Tom Warren <twarren@nvidia.com> | 2013-03-06 16:16:22 -0700 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2013-03-14 11:06:43 -0700 |
| commit | 8ca79b2ff467bda3bc1cfe7fe566f0c1189881dc (patch) | |
| tree | 7cc9230b3f5f27c89df60bcb20c41c24bcbbb160 /board | |
| parent | 8b7776b9f95d542d0e81357c4f8aa32f7bf466e5 (diff) | |
| download | u-boot-imx-8ca79b2ff467bda3bc1cfe7fe566f0c1189881dc.zip u-boot-imx-8ca79b2ff467bda3bc1cfe7fe566f0c1189881dc.tar.gz u-boot-imx-8ca79b2ff467bda3bc1cfe7fe566f0c1189881dc.tar.bz2 | |
Tegra30: Cardhu: Add pad config tables/code based on pinmux code
Pad config registers exist in APB_MISC_GP space, and control slew
rate, drive strengh, schmidt, high-speed, and low-power modes for
all of the pingroups in Tegra30. This builds off of the pinmux
way of constructing init tables to configure select pads (SDIOCFG,
for instance) during pinmux_init().
Currently, only SDIO1CFG is changed as per the TRM to work with
the SD-card slot on Cardhu.
Thanks to StephenW for the suggestion/original idea.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/nvidia/cardhu/cardhu.c | 6 | ||||
| -rw-r--r-- | board/nvidia/cardhu/pinmux-config-cardhu.h | 21 |
2 files changed, 24 insertions, 3 deletions
diff --git a/board/nvidia/cardhu/cardhu.c b/board/nvidia/cardhu/cardhu.c index df4cb6b..08e9b7b 100644 --- a/board/nvidia/cardhu/cardhu.c +++ b/board/nvidia/cardhu/cardhu.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2010-2012 + * (C) Copyright 2010-2013 * NVIDIA Corporation <www.nvidia.com> * * See file CREDITS for list of people who contributed to this @@ -23,6 +23,7 @@ #include <common.h> #include <asm/arch/pinmux.h> +#include <asm/arch/gp_padctrl.h> #include "pinmux-config-cardhu.h" /* @@ -36,4 +37,7 @@ void pinmux_init(void) pinmux_config_table(unused_pins_lowpower, ARRAY_SIZE(unused_pins_lowpower)); + + /* Initialize any non-default pad configs (APB_MISC_GP regs) */ + padgrp_config_table(cardhu_padctrl, ARRAY_SIZE(cardhu_padctrl)); } diff --git a/board/nvidia/cardhu/pinmux-config-cardhu.h b/board/nvidia/cardhu/pinmux-config-cardhu.h index 8428bba..51d2b94 100644 --- a/board/nvidia/cardhu/pinmux-config-cardhu.h +++ b/board/nvidia/cardhu/pinmux-config-cardhu.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -53,6 +53,18 @@ .ioreset = PMUX_PIN_IO_RESET_##_ioreset \ } +#define DEFAULT_PADCFG(_padgrp, _slwf, _slwr, _drvup, _drvdn, _lpmd, _schmt, _hsm) \ + { \ + .padgrp = PDRIVE_PINGROUP_##_padgrp, \ + .slwf = _slwf, \ + .slwr = _slwr, \ + .drvup = _drvup, \ + .drvdn = _drvdn, \ + .lpmd = PGRP_LPMD_##_lpmd, \ + .schmt = PGRP_SCHMT_##_schmt, \ + .hsm = PGRP_HSM_##_hsm, \ + } + static struct pingroup_config tegra3_pinmux_common[] = { /* SDMMC1 pinmux */ DEFAULT_PINMUX(SDMMC1_CLK, SDMMC1, NORMAL, NORMAL, INPUT), @@ -326,4 +338,9 @@ static struct pingroup_config unused_pins_lowpower[] = { DEFAULT_PINMUX(GMI_DQS, NAND, NORMAL, TRISTATE, OUTPUT), }; -#endif /* _PINMUX_CONFIG_CARDHU_H_ */ +static struct padctrl_config cardhu_padctrl[] = { + /* (_padgrp, _slwf, _slwr, _drvup, _drvdn, _lpmd, _schmt, _hsm) */ + DEFAULT_PADCFG(SDIO1, SDIOCFG_DRVUP_SLWF, SDIOCFG_DRVDN_SLWR, \ + SDIOCFG_DRVUP, SDIOCFG_DRVDN, NONE, DISABLE, DISABLE), +}; +#endif /* _PINMUX_CONFIG_CARDHU_H_ */ |