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Annotation of qemu/roms/SLOF/board-js2x/rtas/rtas_board.c, revision 1.1

1.1     ! root        1: /******************************************************************************
        !             2:  * Copyright (c) 2004, 2008 IBM Corporation
        !             3:  * All rights reserved.
        !             4:  * This program and the accompanying materials
        !             5:  * are made available under the terms of the BSD License
        !             6:  * which accompanies this distribution, and is available at
        !             7:  * http://www.opensource.org/licenses/bsd-license.php
        !             8:  *
        !             9:  * Contributors:
        !            10:  *     IBM Corporation - initial implementation
        !            11:  *****************************************************************************/
        !            12: 
        !            13: #include <stdint.h>
        !            14: #include <rtas.h>
        !            15: #include "rtas_board.h"
        !            16: #include <bmc.h>
        !            17: #include <rtas_i2c_bmc.h>
        !            18: #include <rtas_ipmi_bmc.h>
        !            19: #include "libipmi.h"
        !            20: #include <hw.h>
        !            21: 
        !            22: void io_init(void);
        !            23: 
        !            24: typedef struct {
        !            25:        uint64_t r3;
        !            26:        uint64_t addr;
        !            27:        volatile uint64_t id;
        !            28: } slave_t;
        !            29: 
        !            30: volatile slave_t rtas_slave_interface;
        !            31: 
        !            32: void
        !            33: rtas_slave_loop(volatile slave_t * pIface)
        !            34: {
        !            35:        uint64_t mask = pIface->id;
        !            36:        pIface->id = 0;
        !            37:        while (pIface->id != mask); {
        !            38:                int dly = 0x1000;
        !            39:                while (dly--);
        !            40:        }
        !            41:        pIface->id = 0;
        !            42:        asm("  mr 3,%0 ; mtctr %1 ; bctr "::"r"(pIface->r3), "r"(pIface->addr));
        !            43: 
        !            44: }
        !            45: 
        !            46: void
        !            47: rtas_fetch_slaves(rtas_args_t * pArgs)
        !            48: {
        !            49:        int retVal = 0;
        !            50:        int idx = 0;
        !            51:        uint32_t mask = pArgs->args[0] & 0xFFFFFFFE;
        !            52:        uint64_t *rtas_slave_loop_ptr = (uint64_t *)rtas_slave_loop;
        !            53:        while (mask) {
        !            54:                if (mask & 0x1) {
        !            55:                        rtas_slave_interface.id = idx | 0x100;
        !            56:                        *(int *) 0x3fc0 = (int)(unsigned long) &rtas_slave_interface;   // r3
        !            57:                        *(int *) 0x3f80 = *rtas_slave_loop_ptr;         // addr
        !            58:                        *(int *) 0x3fa0 = idx | 0x100;  // pid
        !            59:                        while (rtas_slave_interface.id);
        !            60:                }
        !            61:                mask >>= 1;
        !            62:                idx++;
        !            63:        }
        !            64:        pArgs->args[pArgs->nargs] = retVal;
        !            65: }
        !            66: 
        !            67: void
        !            68: rtas_start_cpu(rtas_args_t * pArgs)
        !            69: {
        !            70:        int retVal = 0;
        !            71:        int idx = pArgs->args[0];       // pid
        !            72:        rtas_slave_interface.r3 = pArgs->args[2];       // r3
        !            73:        rtas_slave_interface.addr = pArgs->args[1];     // addr
        !            74:        asm(" sync ");
        !            75:        rtas_slave_interface.id = idx | 0x100;  // pid
        !            76:        while (rtas_slave_interface.id);
        !            77:        pArgs->args[pArgs->nargs] = retVal;
        !            78: }
        !            79: 
        !            80: void
        !            81: rtas_read_vpd(rtas_args_t * pArgs)
        !            82: {
        !            83:        pArgs->args[pArgs->nargs] =
        !            84:            bmc_read_vpd((uint8_t *) (uint64_t) pArgs->args[2], pArgs->args[1],
        !            85:                         pArgs->args[0]);
        !            86: }
        !            87: 
        !            88: void
        !            89: rtas_write_vpd(rtas_args_t * pArgs)
        !            90: {
        !            91:        pArgs->args[pArgs->nargs] =
        !            92:            bmc_write_vpd((uint8_t *) (uint64_t) pArgs->args[2], pArgs->args[1],
        !            93:                          pArgs->args[0]);
        !            94: }
        !            95: 
        !            96: void
        !            97: rtas_set_indicator(rtas_args_t * pArgs)
        !            98: {
        !            99:        pArgs->args[pArgs->nargs] = -1;
        !           100: }
        !           101: 
        !           102: void
        !           103: rtas_event_scan(rtas_args_t * pArgs)
        !           104: {
        !           105:        pArgs->args[pArgs->nargs] = -1;
        !           106: }
        !           107: 
        !           108: void
        !           109: rtas_stop_bootwatchdog(rtas_args_t * pArgs)
        !           110: {
        !           111:        pArgs->args[pArgs->nargs] = bmc_stop_bootwatchdog();
        !           112: }
        !           113: 
        !           114: void
        !           115: rtas_set_bootwatchdog(rtas_args_t * pArgs)
        !           116: {
        !           117:        pArgs->args[pArgs->nargs] = bmc_set_bootwatchdog(pArgs->args[0]);
        !           118: }
        !           119: 
        !           120: void
        !           121: rtas_set_flashside(rtas_args_t * pArgs)
        !           122: {
        !           123:        pArgs->args[pArgs->nargs] = bmc_set_flashside(pArgs->args[0]);
        !           124: }
        !           125: 
        !           126: void
        !           127: rtas_get_flashside(rtas_args_t * pArgs)
        !           128: {
        !           129:        int retVal = bmc_get_flashside();
        !           130:        pArgs->args[pArgs->nargs] = retVal;
        !           131: }
        !           132: 
        !           133: void
        !           134: rtas_flash_test(rtas_args_t * pArgs)
        !           135: {
        !           136:        pArgs->args[pArgs->nargs] = -1;
        !           137: }
        !           138: 
        !           139: void
        !           140: rtas_system_reboot(rtas_args_t * pArgs)
        !           141: {
        !           142:        bmc_system_reboot();
        !           143:        pArgs->args[pArgs->nargs] = -1;
        !           144: }
        !           145: 
        !           146: void
        !           147: rtas_power_off(rtas_args_t * pArgs)
        !           148: {
        !           149:        bmc_power_off();
        !           150:        pArgs->args[pArgs->nargs] = -1;
        !           151: }
        !           152: 
        !           153: void
        !           154: rtas_get_blade_descr(rtas_args_t * pArgs)
        !           155: {
        !           156:        uint8_t *buffer = (uint8_t *) (uint64_t) pArgs->args[0];
        !           157:        uint32_t maxlen = pArgs->args[1];
        !           158:        uint32_t retlen = 0;
        !           159:        uint32_t retval = bmc_get_blade_descr(buffer, maxlen, &retlen);
        !           160:        pArgs->args[pArgs->nargs] = retlen;
        !           161:        pArgs->args[pArgs->nargs + 1] = retval;
        !           162: }
        !           163: 
        !           164: // for JS20 cannot read blade descr
        !           165: uint32_t
        !           166: dummy_get_blade_descr(uint8_t *dst, uint32_t maxlen, uint32_t *len)
        !           167: {
        !           168:        // to not have a warning we need to do _something_ with *dst and maxlen...
        !           169:        *dst = *dst;
        !           170:        maxlen = maxlen;
        !           171:        *len = 0;
        !           172:        return -1;
        !           173: }
        !           174: 
        !           175: /* read flashside from register */
        !           176: short
        !           177: reg_get_flashside(void)
        !           178: {
        !           179:        short retVal;
        !           180:        uint8_t val = load8_ci(0xf4003fe3);
        !           181:        if (val & 0x80) {
        !           182:                // temp
        !           183:                retVal = 1;
        !           184:        } else {
        !           185:                // perm
        !           186:                retVal = 0;
        !           187:        }
        !           188:        return retVal;
        !           189: }
        !           190: 
        !           191: void
        !           192: rtas_init(void)
        !           193: {
        !           194:        io_init();
        !           195:        if (u4Flag) {
        !           196:                bmc_system_reboot = ipmi_system_reboot;
        !           197:                bmc_power_off = ipmi_power_off;
        !           198:                bmc_set_flashside = ipmi_set_flashside;
        !           199:                bmc_get_flashside = reg_get_flashside;
        !           200:                bmc_stop_bootwatchdog = ipmi_oem_stop_bootwatchdog;
        !           201:                bmc_set_bootwatchdog = ipmi_oem_set_bootwatchdog;
        !           202:                bmc_read_vpd = ipmi_oem_read_vpd;
        !           203:                bmc_write_vpd = ipmi_oem_write_vpd;
        !           204:                bmc_get_blade_descr = ipmi_oem_get_blade_descr;
        !           205:        } else {
        !           206:                bmc_system_reboot = i2c_system_reboot;
        !           207:                bmc_power_off = i2c_power_off;
        !           208:                bmc_set_flashside = i2c_set_flashside;
        !           209:                bmc_get_flashside = i2c_get_flashside;
        !           210:                bmc_stop_bootwatchdog = i2c_stop_bootwatchdog;
        !           211:                bmc_set_bootwatchdog = i2c_set_bootwatchdog;
        !           212:                bmc_read_vpd = i2c_read_vpd;
        !           213:                bmc_write_vpd = i2c_write_vpd;
        !           214:                bmc_get_blade_descr = dummy_get_blade_descr;
        !           215:        }
        !           216: }

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