/* * novena-eim.h * ------------ * This module contains the user interface to the Novena EIM bus. * * Author: Pavel Shatov * Copyright (c) 2015, NORDUnet A/S All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of the NORDUnet nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ //------------------------------------------------------------------------------ // Defined Values //------------------------------------------------------------------------------ #define MEMORY_DEVICE "/dev/mem" //------------------------------------------------------------------------------ // IOMUXC Values //------------------------------------------------------------------------------ #define IOMUXC_MUX_MODE_ALT0 0 // 000 #define IOMUXC_PAD_CTL_SRE_FAST 1 // 1 #define IOMUXC_PAD_CTL_DSE_33_OHM 7 // 111 #define IOMUXC_PAD_CTL_SPEED_MEDIUM_10 2 // 10 #define IOMUXC_PAD_CTL_ODE_DISABLED 0 // 0 #define IOMUXC_PAD_CTL_PKE_DISABLED 0 // 0 #define IOMUXC_PAD_CTL_PUE_PULL 1 // 1 #define IOMUXC_PAD_CTL_PUS_100K_OHM_PU 2 // 10 #define IOMUXC_PAD_CTL_HYS_DISABLED 0 // 0 //------------------------------------------------------------------------------ // CCM Values //------------------------------------------------------------------------------ #define CCM_CGR_OFF 0 // 00 #define CCM_CGR_ON_EXCEPT_STOP 3 // 11 //------------------------------------------------------------------------------ // CPU Registers //------------------------------------------------------------------------------ enum IMX6DQ_REGISTER_OFFSET { IOMUXC_SW_MUX_CTL_PAD_EIM_CS0_B = 0x020E00F8, IOMUXC_SW_MUX_CTL_PAD_EIM_OE_B = 0x020E0100, IOMUXC_SW_MUX_CTL_PAD_EIM_RW = 0x020E0104, IOMUXC_SW_MUX_CTL_PAD_EIM_LBA_B = 0x020E0108, IOMUXC_SW_MUX_CTL_PAD_EIM_AD00 = 0x020E0114, IOMUXC_SW_MUX_CTL_PAD_EIM_AD01 = 0x020E0118, IOMUXC_SW_MUX_CTL_PAD_EIM_AD02 = 0x020E011C, IOMUXC_SW_MUX_CTL_PAD_EIM_AD03 = 0x020E0120, IOMUXC_SW_MUX_CTL_PAD_EIM_AD04 = 0x020E0124, IOMUXC_SW_MUX_CTL_PAD_EIM_AD05 = 0x020E0128, IOMUXC_SW_MUX_CTL_PAD_EIM_AD06 = 0x020E012C, IOMUXC_SW_MUX_CTL_PAD_EIM_AD07 = 0x020E0130, IOMUXC_SW_MUX_CTL_PAD_EIM_AD08 = 0x020E0134, IOMUXC_SW_MUX_CTL_PAD_EIM_AD09 = 0x020E0138, IOMUXC_SW_MUX_CTL_PAD_EIM_AD10 = 0x020E013C, IOMUXC_SW_MUX_CTL_PAD_EIM_AD11 = 0x020E0140, IOMUXC_SW_MUX_CTL_PAD_EIM_AD12 = 0x020E0144, IOMUXC_SW_MUX_CTL_PAD_EIM_AD13 = 0x020E0148, IOMUXC_SW_MUX_CTL_PAD_EIM_AD14 = 0x020E014C, IOMUXC_SW_MUX_CTL_PAD_EIM_AD15 = 0x020E0150, IOMUXC_SW_MUX_CTL_PAD_EIM_WAIT_B = 0x020E0154, IOMUXC_SW_MUX_CTL_PAD_EIM_BCLK = 0x020E0158, IOMUXC_SW_PAD_CTL_PAD_EIM_CS0_B = 0x020E040C, IOMUXC_SW_PAD_CTL_PAD_EIM_OE_B = 0x020E0414, IOMUXC_SW_PAD_CTL_PAD_EIM_RW = 0x020E0418, IOMUXC_SW_PAD_CTL_PAD_EIM_LBA_B = 0x020E041C, IOMUXC_SW_PAD_CTL_PAD_EIM_AD00 = 0x020E0428, IOMUXC_SW_PAD_CTL_PAD_EIM_AD01 = 0x020E042C, IOMUXC_SW_PAD_CTL_PAD_EIM_AD02 = 0x020E0430, IOMUXC_SW_PAD_CTL_PAD_EIM_AD03 = 0x020E0434, IOMUXC_SW_PAD_CTL_PAD_EIM_AD04 = 0x020E0438, IOMUXC_SW_PAD_CTL_PAD_EIM_AD05 = 0x020E043C, IOMUXC_SW_PAD_CTL_PAD_EIM_AD06 = 0x020E0440, IOMUXC_SW_PAD_CTL_PAD_EIM_AD07 = 0x020E0444, IOMUXC_SW_PAD_CTL_PAD_EIM_AD08 = 0x020E0448, IOMUXC_SW_PAD_CTL_PAD_EIM_AD09 = 0x020E044C, IOMUXC_SW_PAD_CTL_PAD_EIM_AD10 = 0x020E0450, IOMUXC_SW_PAD_CTL_PAD_EIM_AD11 = 0x020E0454, IOMUXC_SW_PAD_CTL_PAD_EIM_AD12 = 0x020E0458, IOMUXC_SW_PAD_CTL_PAD_EIM_AD13 = 0x020E045C, IOMUXC_SW_PAD_CTL_PAD_EIM_AD14 = 0x020E0460, IOMUXC_SW_PAD_CTL_PAD_EIM_AD15 = 0x020E0464, IOMUXC_SW_PAD_CTL_PAD_EIM_WAIT_B = 0x020E0468, IOMUXC_SW_PAD_CTL_PAD_EIM_BCLK = 0x020E046C, CCM_CCGR6 = 0x020C4080, EIM_CS0GCR1 = 0x021B8000, EIM_CS0GCR2 = 0x021B8004, EIM_CS0RCR1 = 0x021B8008, EIM_CS0RCR2 = 0x021B800C, EIM_CS0WCR1 = 0x021B8010, EIM_CS0WCR2 = 0x021B8014, EIM_WCR = 0x021B8090, EIM_WIAR = 0x021B8094, EIM_EAR = 0x021B8098, EIM_BASE_ADDR = 0x08000000 }; //------------------------------------------------------------------------------ struct IOMUXC_SW_MUX_CTL_PAD_EIM //------------------------------------------------------------------------------ { unsigned int mux_mode : 3; unsigned int reserved_3 : 1; unsigned int sion : 1; unsigned int reserved_31_5 : 27; }; //------------------------------------------------------------------------------ struct IOMUXC_SW_PAD_CTL_PAD_EIM //------------------------------------------------------------------------------ { unsigned int sre : 1; unsigned int reserved_2_1 : 2; unsigned int dse : 3; unsigned int speed : 2; unsigned int reserved_10_8 : 3; unsigned int ode : 1; unsigned int pke : 1; unsigned int pue : 1; unsigned int pus : 2; unsigned int hys : 1; unsigned int reserved_31_17 : 15; }; //------------------------------------------------------------------------------ struct CCM_CCGR6 //------------------------------------------------------------------------------ { unsigned int cg0_usboh3 : 2; unsigned int cg1_usdhc1 : 2; unsigned int cg2_usdhc2 : 2; unsigned int cg3_usdhc3 : 2; unsigned int cg3_usdhc4 : 2; unsigned int cg5_eim_slow : 2; unsigned int cg6_vdoaxiclk : 2; unsigned int cg7_vpu : 2; unsigned int cg8_reserved : 2; unsigned int cg9_reserved : 2; unsigned int cg10_reserved : 2; unsigned int cg11_reserved : 2; unsigned int cg12_reserved : 2; unsigned int cg13_reserved : 2; unsigned int cg14_reserved : 2; unsigned int cg15_reserved : 2; }; //------------------------------------------------------------------------------ struct EIM_CS_GCR1 //------------------------------------------------------------------------------ { unsigned int csen : 1; unsigned int swr : 1; unsigned int srd : 1; unsigned int mum : 1; unsigned int wfl : 1; unsigned int rfl : 1; unsigned int cre : 1; unsigned int crep : 1; unsigned int bl : 3; unsigned int wc : 1; unsigned int bcd : 2; unsigned int bcs : 2; unsigned int dsz : 3; unsigned int sp : 1; unsigned int csrec : 3; unsigned int aus : 1; unsigned int gbc : 3; unsigned int wp : 1; unsigned int psz : 4; }; //------------------------------------------------------------------------------ struct EIM_CS_GCR2 //------------------------------------------------------------------------------ { unsigned int adh : 2; unsigned int reserved_3_2 : 2; unsigned int daps : 4; unsigned int dae : 1; unsigned int dap : 1; unsigned int reserved_11_10 : 2; unsigned int mux16_byp_grant : 1; unsigned int reserved_31_13 : 19; }; //------------------------------------------------------------------------------ struct EIM_CS_RCR1 //------------------------------------------------------------------------------ { unsigned int rcsn : 3; unsigned int reserved_3 : 1; unsigned int rcsa : 3; unsigned int reserved_7 : 1; unsigned int oen : 3; unsigned int reserved_11 : 1; unsigned int oea : 3; unsigned int reserved_15 : 1; unsigned int radvn : 3; unsigned int ral : 1; unsigned int radva : 3; unsigned int reserved_23 : 1; unsigned int rwsc : 6; unsigned int reserved_31_30 : 2; }; //------------------------------------------------------------------------------ struct EIM_CS_RCR2 //------------------------------------------------------------------------------ { unsigned int rben : 3; unsigned int rbe : 1; unsigned int rbea : 3; unsigned int reserved_7 : 1; unsigned int rl : 2; unsigned int reserved_11_10 : 2; unsigned int pat : 3; unsigned int apr : 1; unsigned int reserved_31_16 : 16; }; //------------------------------------------------------------------------------ struct EIM_CS_WCR1 //------------------------------------------------------------------------------ { unsigned int wcsn : 3; unsigned int wcsa : 3; unsigned int wen : 3; unsigned int wea : 3; unsigned int wben : 3; unsigned int wbea : 3; unsigned int wadvn : 3; unsigned int wadva : 3; unsigned int wwsc : 6; unsigned int wbed : 1; unsigned int wal : 1; }; //------------------------------------------------------------------------------ struct EIM_CS_WCR2 //------------------------------------------------------------------------------ { unsigned int wbcdd : 1; unsigned int reserved_31_1 : 31; }; //------------------------------------------------------------------------------ struct EIM_WCR //------------------------------------------------------------------------------ { unsigned int bcm : 1; unsigned int gbcd : 2; unsigned int reserved_3 : 1; unsigned int inten : 1; unsigned int intpol : 1; unsigned int reserved_7_6 : 2; unsigned int wdog_en : 1; unsigned int wdog_limit : 2; unsigned int reserved_31_11 : 21; }; //------------------------------------------------------------------------------ struct EIM_WIAR //------------------------------------------------------------------------------ { unsigned int ips_req : 1; unsigned int ips_ack : 1; unsigned int irq : 1; unsigned int errst : 1; unsigned int aclk_en : 1; unsigned int reserved_31_5 : 27; }; //------------------------------------------------------------------------------ struct EIM_EAR //------------------------------------------------------------------------------ { unsigned int error_addr : 32; }; //------------------------------------------------------------------------------ // Prototypes //------------------------------------------------------------------------------ int eim_setup (void); void eim_write_32 (off_t, unsigned int *); void eim_read_32 (off_t, unsigned int *); //------------------------------------------------------------------------------ // End-of-File //------------------------------------------------------------------------------