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27#include <common.h>
28#include <ioports.h>
29#include <mpc83xx.h>
30#include <asm/mpc8349_pci.h>
31#include <pci.h>
32#include <asm/mmu.h>
33#include <asm/io.h>
34
35#include "caddy.h"
36
37static struct caddy_interface *caddy_interface;
38
39void generate_answer(struct caddy_cmd *cmd, uint32_t status, uint32_t *result)
40{
41 struct caddy_answer *answer;
42 uint32_t ptr;
43
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;
54}
55
56int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
57{
58 unsigned long base_addr;
59 uint32_t ptr;
60 struct caddy_cmd *caddy_cmd;
61 uint32_t result[5];
62 uint16_t data16;
63 uint8_t data8;
64 uint32_t status;
65 pci_dev_t dev;
66 void *pci_ptr;
67
68 if (argc < 2) {
69 puts("Missing parameter\n");
70 return 1;
71 }
72
73 base_addr = simple_strtoul(argv[1], NULL, 16);
74 caddy_interface = (struct caddy_interface *) base_addr;
75
76 memset((void *)caddy_interface, 0, sizeof(struct caddy_interface));
77 memcpy((void *)&caddy_interface->magic[0], &CADDY_MAGIC, 16);
78
79 while (ctrlc() == 0) {
80 if (caddy_interface->cmd_in != caddy_interface->cmd_out) {
81 memset(result, 0, 5 * sizeof(result[0]));
82 status = 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);
86
87 switch (caddy_cmd->cmd) {
88 case CADDY_CMD_IO_READ_8:
89 result[0] = in_8(pci_ptr);
90 break;
91
92 case CADDY_CMD_IO_READ_16:
93 result[0] = in_be16(pci_ptr);
94 break;
95
96 case CADDY_CMD_IO_READ_32:
97 result[0] = in_be32(pci_ptr);
98 break;
99
100 case CADDY_CMD_IO_WRITE_8:
101 data8 = caddy_cmd->par[0] & 0x000000ff;
102 out_8(pci_ptr, data8);
103 break;
104
105 case CADDY_CMD_IO_WRITE_16:
106 data16 = caddy_cmd->par[0] & 0x0000ffff;
107 out_be16(pci_ptr, data16);
108 break;
109
110 case CADDY_CMD_IO_WRITE_32:
111 out_be32(pci_ptr, caddy_cmd->par[0]);
112 break;
113
114 case CADDY_CMD_CONFIG_READ_8:
115 dev = PCI_BDF(caddy_cmd->par[0],
116 caddy_cmd->par[1],
117 caddy_cmd->par[2]);
118 status = pci_read_config_byte(dev,
119 caddy_cmd->addr,
120 &data8);
121 result[0] = data8;
122 break;
123
124 case CADDY_CMD_CONFIG_READ_16:
125 dev = PCI_BDF(caddy_cmd->par[0],
126 caddy_cmd->par[1],
127 caddy_cmd->par[2]);
128 status = pci_read_config_word(dev,
129 caddy_cmd->addr,
130 &data16);
131 result[0] = data16;
132 break;
133
134 case CADDY_CMD_CONFIG_READ_32:
135 dev = PCI_BDF(caddy_cmd->par[0],
136 caddy_cmd->par[1],
137 caddy_cmd->par[2]);
138 status = pci_read_config_dword(dev,
139 caddy_cmd->addr,
140 &result[0]);
141 break;
142
143 case CADDY_CMD_CONFIG_WRITE_8:
144 dev = PCI_BDF(caddy_cmd->par[0],
145 caddy_cmd->par[1],
146 caddy_cmd->par[2]);
147 data8 = caddy_cmd->par[3] & 0x000000ff;
148 status = pci_write_config_byte(dev,
149 caddy_cmd->addr,
150 data8);
151 break;
152
153 case CADDY_CMD_CONFIG_WRITE_16:
154 dev = PCI_BDF(caddy_cmd->par[0],
155 caddy_cmd->par[1],
156 caddy_cmd->par[2]);
157 data16 = caddy_cmd->par[3] & 0x0000ffff;
158 status = pci_write_config_word(dev,
159 caddy_cmd->addr,
160 data16);
161 break;
162
163 case CADDY_CMD_CONFIG_WRITE_32:
164 dev = PCI_BDF(caddy_cmd->par[0],
165 caddy_cmd->par[1],
166 caddy_cmd->par[2]);
167 status = pci_write_config_dword(dev,
168 caddy_cmd->addr,
169 caddy_cmd->par[3]);
170 break;
171
172 default:
173 status = 0xffffffff;
174 break;
175 }
176
177 generate_answer(caddy_cmd, status, &result[0]);
178
179 ptr = caddy_interface->cmd_out + 1;
180 ptr = ptr & (CMD_SIZE - 1);
181 caddy_interface->cmd_out = ptr;
182 }
183
184 caddy_interface->heartbeat++;
185 }
186
187 return 0;
188}
189
190U_BOOT_CMD(
191 caddy, 2, 0, do_caddy,
192 "Start Caddy server.",
193 "Start Caddy server with Data structure a given addr\n"
194 );
195
