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author | Wolfgang Denk <wd@denx.de> | 2011-12-10 22:46:48 +0100 |
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committer | Wolfgang Denk <wd@denx.de> | 2011-12-10 22:46:48 +0100 |
commit | b96a661aeadb1b68d1b589b47f99ce9d6b2769df (patch) | |
tree | 4df62e827b8d33686bbd6da9d08e96fd7314eef2 /arch/arm/include/asm/arch-mx6/iomux-v3.h | |
parent | 84d018268a8af1d9f271b398748652c5112e951a (diff) | |
parent | 8ba1604d342076c29e375fa3196106eed1f84b2a (diff) | |
download | u-boot-b96a661aeadb1b68d1b589b47f99ce9d6b2769df.tar.gz |
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
M28: Cleanup memsize.o OOT build
i.MX28: Move SPL to arch/arm/cpu/arm926ejs/mx28
M28: Fix typo
M28: Document that units has to be set to sectors on SD bootcard
i.mx: i.mx6q: add the initial support for i.mx6q ARM2 board
i.mx: mxc_gpio: add the i.mx6q support
i.mx: add the initial support for freescale i.MX6Q processor
i.mx: introduce the armv7/imx-common folder
S5PC2XX: Rename S5pc2XX to exynos
tegra2: Don't use board pointer before it is set up
tegra2: Remove unneeded 'dynamic ram size' message
tegra2: Remove unused low-level Tegra2 UART code
tegra2: Remove unneeded config option
tegra2: Remove unneeded boot code
tegra2: Enable instruction cache
arm: Move CP15 init out of cpu_init_crit()
tegra2: Simplify tegra_start() boot path
tegra2: Add arch_cpu_init() to fire up Cortex-A9
tegra2: Use new GPIO APIs in gpio_config_uart()
tegra2: Add support for Ventana
tegra2: Modify MMC driver to handle power and cd GPIOs
tegra2: Move board_mmc_init into board files
Diffstat (limited to 'arch/arm/include/asm/arch-mx6/iomux-v3.h')
-rw-r--r-- | arch/arm/include/asm/arch-mx6/iomux-v3.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx6/iomux-v3.h b/arch/arm/include/asm/arch-mx6/iomux-v3.h new file mode 100644 index 0000000000..4558f4fba2 --- /dev/null +++ b/arch/arm/include/asm/arch-mx6/iomux-v3.h @@ -0,0 +1,103 @@ +/* + * Based on Linux i.MX iomux-v3.h file: + * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH, + * <armlinux@phytec.de> + * + * Copyright (C) 2011 Freescale Semiconductor, Inc. + * + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#ifndef __MACH_IOMUX_V3_H__ +#define __MACH_IOMUX_V3_H__ + +/* + * build IOMUX_PAD structure + * + * This iomux scheme is based around pads, which are the physical balls + * on the processor. + * + * - Each pad has a pad control register (IOMUXC_SW_PAD_CTRL_x) which controls + * things like driving strength and pullup/pulldown. + * - Each pad can have but not necessarily does have an output routing register + * (IOMUXC_SW_MUX_CTL_PAD_x). + * - Each pad can have but not necessarily does have an input routing register + * (IOMUXC_x_SELECT_INPUT) + * + * The three register sets do not have a fixed offset to each other, + * hence we order this table by pad control registers (which all pads + * have) and put the optional i/o routing registers into additional + * fields. + * + * The naming convention for the pad modes is SOC_PAD_<padname>__<padmode> + * If <padname> or <padmode> refers to a GPIO, it is named GPIO_<unit>_<num> + * + * IOMUX/PAD Bit field definitions + * + * MUX_CTRL_OFS: 0..11 (12) + * PAD_CTRL_OFS: 12..23 (12) + * SEL_INPUT_OFS: 24..35 (12) + * MUX_MODE + SION: 36..40 (5) + * PAD_CTRL + NO_PAD_CTRL: 41..58 (18) + * SEL_INP: 59..62 (4) + * reserved: 63 (1) +*/ + +typedef u64 iomux_v3_cfg_t; + +#define MUX_CTRL_OFS_SHIFT 0 +#define MUX_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT) +#define MUX_PAD_CTRL_OFS_SHIFT 12 +#define MUX_PAD_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << \ + MUX_PAD_CTRL_OFS_SHIFT) +#define MUX_SEL_INPUT_OFS_SHIFT 24 +#define MUX_SEL_INPUT_OFS_MASK ((iomux_v3_cfg_t)0xfff << \ + MUX_SEL_INPUT_OFS_SHIFT) + +#define MUX_MODE_SHIFT 36 +#define MUX_MODE_MASK ((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT) +#define MUX_PAD_CTRL_SHIFT 41 +#define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT) +#define MUX_SEL_INPUT_SHIFT 59 +#define MUX_SEL_INPUT_MASK ((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT) + +#define MUX_PAD_CTRL(x) ((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT) + +#define IOMUX_PAD(pad_ctrl_ofs, mux_ctrl_ofs, mux_mode, sel_input_ofs, \ + sel_input, pad_ctrl) \ + (((iomux_v3_cfg_t)(mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) | \ + ((iomux_v3_cfg_t)(mux_mode) << MUX_MODE_SHIFT) | \ + ((iomux_v3_cfg_t)(pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \ + ((iomux_v3_cfg_t)(pad_ctrl) << MUX_PAD_CTRL_SHIFT) | \ + ((iomux_v3_cfg_t)(sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT)| \ + ((iomux_v3_cfg_t)(sel_input) << MUX_SEL_INPUT_SHIFT)) + +#define NO_PAD_CTRL (1 << 17) +#define GPIO_PIN_MASK 0x1f +#define GPIO_PORT_SHIFT 5 +#define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT) +#define GPIO_PORTA (0 << GPIO_PORT_SHIFT) +#define GPIO_PORTB (1 << GPIO_PORT_SHIFT) +#define GPIO_PORTC (2 << GPIO_PORT_SHIFT) +#define GPIO_PORTD (3 << GPIO_PORT_SHIFT) +#define GPIO_PORTE (4 << GPIO_PORT_SHIFT) +#define GPIO_PORTF (5 << GPIO_PORT_SHIFT) + +#define MUX_CONFIG_SION (0x1 << 4) + +int imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad); +int imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count); + +#endif /* __MACH_IOMUX_V3_H__*/ |