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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>
65 lines
2.7 KiB
C
65 lines
2.7 KiB
C
/*
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* Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TEGRA30_GP_PADCTRL_H_
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#define _TEGRA30_GP_PADCTRL_H_
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#include <asm/arch-tegra/gp_padctrl.h>
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/* APB_MISC_GP and padctrl registers */
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struct apb_misc_gp_ctlr {
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u32 modereg; /* 0x00: APB_MISC_GP_MODEREG */
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u32 hidrev; /* 0x04: APB_MISC_GP_HIDREV */
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u32 reserved0[22]; /* 0x08 - 0x5C: */
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u32 emu_revid; /* 0x60: APB_MISC_GP_EMU_REVID */
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u32 xactor_scratch; /* 0x64: APB_MISC_GP_XACTOR_SCRATCH */
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u32 aocfg1; /* 0x68: APB_MISC_GP_AOCFG1PADCTRL */
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u32 aocfg2; /* 0x6c: APB_MISC_GP_AOCFG2PADCTRL */
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u32 atcfg1; /* 0x70: APB_MISC_GP_ATCFG1PADCTRL */
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u32 atcfg2; /* 0x74: APB_MISC_GP_ATCFG2PADCTRL */
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u32 atcfg3; /* 0x78: APB_MISC_GP_ATCFG3PADCTRL */
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u32 atcfg4; /* 0x7C: APB_MISC_GP_ATCFG4PADCTRL */
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u32 atcfg5; /* 0x80: APB_MISC_GP_ATCFG5PADCTRL */
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u32 cdev1cfg; /* 0x84: APB_MISC_GP_CDEV1CFGPADCTRL */
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u32 cdev2cfg; /* 0x88: APB_MISC_GP_CDEV2CFGPADCTRL */
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u32 csuscfg; /* 0x8C: APB_MISC_GP_CSUSCFGPADCTRL */
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u32 dap1cfg; /* 0x90: APB_MISC_GP_DAP1CFGPADCTRL */
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u32 dap2cfg; /* 0x94: APB_MISC_GP_DAP2CFGPADCTRL */
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u32 dap3cfg; /* 0x98: APB_MISC_GP_DAP3CFGPADCTRL */
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u32 dap4cfg; /* 0x9C: APB_MISC_GP_DAP4CFGPADCTRL */
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u32 dbgcfg; /* 0xA0: APB_MISC_GP_DBGCFGPADCTRL */
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u32 lcdcfg1; /* 0xA4: APB_MISC_GP_LCDCFG1PADCTRL */
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u32 lcdcfg2; /* 0xA8: APB_MISC_GP_LCDCFG2PADCTRL */
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u32 sdio2cfg; /* 0xAC: APB_MISC_GP_SDIO2CFGPADCTRL */
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u32 sdio3cfg; /* 0xB0: APB_MISC_GP_SDIO3CFGPADCTRL */
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u32 spicfg; /* 0xB4: APB_MISC_GP_SPICFGPADCTRL */
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u32 uaacfg; /* 0xB8: APB_MISC_GP_UAACFGPADCTRL */
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u32 uabcfg; /* 0xBC: APB_MISC_GP_UABCFGPADCTRL */
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u32 uart2cfg; /* 0xC0: APB_MISC_GP_UART2CFGPADCTRL */
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u32 uart3cfg; /* 0xC4: APB_MISC_GP_UART3CFGPADCTRL */
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u32 vicfg1; /* 0xC8: APB_MISC_GP_VICFG1PADCTRL */
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u32 vivttgen; /* 0xCC: APB_MISC_GP_VIVTTGENPADCTRL */
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u32 reserved1[7]; /* 0xD0-0xE8: */
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u32 sdio1cfg; /* 0xEC: APB_MISC_GP_SDIO1CFGPADCTRL */
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};
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/* SDMMC1/3 settings from section 24.6 of T30 TRM */
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#define SDIOCFG_DRVUP_SLWF 1
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#define SDIOCFG_DRVDN_SLWR 1
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#define SDIOCFG_DRVUP 0x2E
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#define SDIOCFG_DRVDN 0x2A
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#endif /* _TEGRA30_GP_PADCTRL_H_ */
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