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/* mc_ssram.c - Memory Controller testbench SSRAM test

         Copyright (C) 2001 by Ivan Guzvinec, ivang@opencores.org

         This file is part of OpenRISC 1000 Architectural Simulator.

         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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include "support.h"

#include "mc_common.h"

#include "mc_ssram.h"

#include "../peripheral/mc.h"

#include "../peripheral/gpio.h"

#include "../peripheral/fields.h"

typedef volatile unsigned long *REGISTER;

REGISTER mc_poc        = (unsigned long*)(MC_BASE + MC_POC);

REGISTER mc_csr        = (unsigned long*)(MC_BASE + MC_CSR);

REGISTER mc_ba_mask    = (unsigned long*)(MC_BASE + MC_BA_MASK);

REGISTER rgpio_out     = (unsigned long*)(GPIO_BASE + RGPIO_OUT);

REGISTER rgpio_in      = (unsigned long*)(GPIO_BASE + RGPIO_IN);

unsigned long lpoc;

unsigned long set_config()

{

    REGISTER mc_csc;

    unsigned char ch;

    lpoc = *mc_poc;

    for (ch=0; ch<8; ch++) {

        if (MC_SSRAM_CSMASK && (0x01 << ch) ) {

            mc_csc = (unsigned long*)(MC_BASE + MC_CSC(ch));

            SET_FIELD(*mc_csc, MC_CSC, SEL, mc_ssram_cs[ch].M);

            SET_FLAG(*mc_csc, MC_CSC, EN);

            printf ("Channel Config %d - CSC = 0x%08lX\n", ch, *mc_csc);

        }

    }

    return 0;

}

int main()

{

    unsigned long ret;

    unsigned char ch;

    unsigned long test;

    unsigned long gpio_pat;

    unsigned long nAddress;

    unsigned long nMemSize;

    unsigned long mc_sel;

    REGISTER mc_tms;

    REGISTER mc_cs;

    *rgpio_out = 0xFFFFFFFF;

    /* set configuration */

    /* MC configuration set by except_mc.S prior to execution of main()

    if ( (ret = set_config()) != 0) {

        exit(ret);

    }

    */

    *rgpio_out = 0;

    for (ch=0; ch<8; ch++) {

        if (MC_SSRAM_CSMASK && (0x01 << ch) ) {

            printf ("--- Begin Test on CS%d ---\n", ch);

            mc_cs  = (unsigned long*)(MC_BASE + MC_CSC(ch));

            mc_tms = (unsigned long*)(MC_BASE + MC_TMS(ch));

            mc_sel = GET_FIELD(*mc_cs, MC_CSC, SEL);

            printf ("CS configuration : CSC - 0x%08lX, TMS - 0x%08lXu\n",

                    *mc_cs, *mc_tms);

            for (test=0; test<4; test++) {

                /* configure MC*/

                CLEAR_FLAG(*mc_cs, MC_CSC, PEN); /* no parity */

                CLEAR_FLAG(*mc_cs, MC_CSC, BAS); /* bank after column */

                CLEAR_FLAG(*mc_cs, MC_CSC, WP);  /* write enable */

                switch (test) {

                case 0:

                    if ((MC_SSRAM_TESTS & MC_SSRAM_TEST0) != MC_SSRAM_TEST0)

                        continue;

                    break;

                case 1:

                    if ((MC_SSRAM_TESTS & MC_SSRAM_TEST1) != MC_SSRAM_TEST1)

                        continue;

                    SET_FLAG(*mc_cs, MC_CSC, PEN); /* parity */

                    break;

                case 2:

                    if ((MC_SSRAM_TESTS & MC_SSRAM_TEST2) != MC_SSRAM_TEST2)

                        continue;

                    SET_FLAG(*mc_cs, MC_CSC, BAS); /* bank after row */

                    break;

                case 3:

                    if ((MC_SSRAM_TESTS & MC_SSRAM_TEST3) != MC_SSRAM_TEST3)

                        continue;

                    SET_FLAG(*mc_cs, MC_CSC, WP);  /* RO */

                    break;

                } /*switch test*/

                printf ("Begin TEST %lu : CSC - 0x%08lX, TMS - 0x%08lX\n", test, *mc_cs, *mc_tms);

                nAddress = mc_sel << 21;

                nAddress |= MC_MEM_BASE;

                nMemSize = ( ((*mc_ba_mask && 0x000000FF) + 1) << 21);

                gpio_pat ^= 0x00000008;

                *rgpio_out = gpio_pat;

                ret = mc_test_row(nAddress, nAddress + nMemSize, MC_SSRAM_FLAGS);

                printf("\trow tested: nAddress = 0x%08lX, ret = 0x%08lX\n", nAddress, ret);

                if (ret) {

                    gpio_pat ^= 0x00000080;

                    *rgpio_out = gpio_pat;

                    report(ret);

                    return ret;

                }

            } /*for test*/

        } /*if*/

    } /*for CS*/

    printf("--- End SSRAM tests ---\n");

    report(0xDEADDEAD);

    gpio_pat ^= 0x00000020;

    *rgpio_out = gpio_pat;

    return 0;

} /* main */