2 * caddy.c -- esd VME8349 support for "missing" access modes in TSI148.
3 * Copyright (c) 2009 esd gmbh.
5 * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #include <asm/mpc8349_pci.h>
37 static struct caddy_interface *caddy_interface;
39 void generate_answer(struct caddy_cmd *cmd, uint32_t status, uint32_t *result)
41 struct caddy_answer *answer;
44 answer = &caddy_interface->answer[caddy_interface->answer_in];
45 memset((void *)answer, 0, sizeof(struct caddy_answer));
46 answer->answer = cmd->cmd;
47 answer->issue = cmd->issue;
48 answer->status = status;
49 memcpy(answer->par, result, 5 * sizeof(result[0]));
50 ptr = caddy_interface->answer_in + 1;
51 ptr = ptr & (ANSWER_SIZE - 1);
52 if (ptr != caddy_interface->answer_out)
53 caddy_interface->answer_in = ptr;
56 int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
58 unsigned long base_addr;
60 struct caddy_cmd *caddy_cmd;
69 puts("Missing parameter\n");
73 base_addr = simple_strtoul(argv[1], NULL, 16);
74 caddy_interface = (struct caddy_interface *) base_addr;
76 memset((void *)caddy_interface, 0, sizeof(struct caddy_interface));
77 memcpy((void *)&caddy_interface->magic[0], &CADDY_MAGIC, 16);
79 while (ctrlc() == 0) {
80 if (caddy_interface->cmd_in != caddy_interface->cmd_out) {
81 memset(result, 0, 5 * sizeof(result[0]));
83 caddy_cmd = &caddy_interface->cmd[caddy_interface->cmd_out];
84 pci_ptr = (void *)CONFIG_SYS_PCI1_IO_PHYS +
85 (caddy_cmd->addr & 0x001fffff);
87 switch (caddy_cmd->cmd) {
88 case CADDY_CMD_IO_READ_8:
89 result[0] = in_8(pci_ptr);
92 case CADDY_CMD_IO_READ_16:
93 result[0] = in_be16(pci_ptr);
96 case CADDY_CMD_IO_READ_32:
97 result[0] = in_be32(pci_ptr);
100 case CADDY_CMD_IO_WRITE_8:
101 data8 = caddy_cmd->par[0] & 0x000000ff;
102 out_8(pci_ptr, data8);
105 case CADDY_CMD_IO_WRITE_16:
106 data16 = caddy_cmd->par[0] & 0x0000ffff;
107 out_be16(pci_ptr, data16);
110 case CADDY_CMD_IO_WRITE_32:
111 out_be32(pci_ptr, caddy_cmd->par[0]);
114 case CADDY_CMD_CONFIG_READ_8:
115 dev = PCI_BDF(caddy_cmd->par[0],
118 status = pci_read_config_byte(dev,
124 case CADDY_CMD_CONFIG_READ_16:
125 dev = PCI_BDF(caddy_cmd->par[0],
128 status = pci_read_config_word(dev,
134 case CADDY_CMD_CONFIG_READ_32:
135 dev = PCI_BDF(caddy_cmd->par[0],
138 status = pci_read_config_dword(dev,
143 case CADDY_CMD_CONFIG_WRITE_8:
144 dev = PCI_BDF(caddy_cmd->par[0],
147 data8 = caddy_cmd->par[3] & 0x000000ff;
148 status = pci_write_config_byte(dev,
153 case CADDY_CMD_CONFIG_WRITE_16:
154 dev = PCI_BDF(caddy_cmd->par[0],
157 data16 = caddy_cmd->par[3] & 0x0000ffff;
158 status = pci_write_config_word(dev,
163 case CADDY_CMD_CONFIG_WRITE_32:
164 dev = PCI_BDF(caddy_cmd->par[0],
167 status = pci_write_config_dword(dev,
177 generate_answer(caddy_cmd, status, &result[0]);
179 ptr = caddy_interface->cmd_out + 1;
180 ptr = ptr & (CMD_SIZE - 1);
181 caddy_interface->cmd_out = ptr;
184 caddy_interface->heartbeat++;
191 caddy, 2, 0, do_caddy,
192 "Start Caddy server.",
193 "Start Caddy server with Data structure a given addr\n"