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 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/mpc8349_pci.h>
20 static struct caddy_interface *caddy_interface;
22 void generate_answer(struct caddy_cmd *cmd, uint32_t status, uint32_t *result)
24 struct caddy_answer *answer;
27 answer = &caddy_interface->answer[caddy_interface->answer_in];
28 memset((void *)answer, 0, sizeof(struct caddy_answer));
29 answer->answer = cmd->cmd;
30 answer->issue = cmd->issue;
31 answer->status = status;
32 memcpy(answer->par, result, 5 * sizeof(result[0]));
33 ptr = caddy_interface->answer_in + 1;
34 ptr = ptr & (ANSWER_SIZE - 1);
35 if (ptr != caddy_interface->answer_out)
36 caddy_interface->answer_in = ptr;
39 int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
41 unsigned long base_addr;
43 struct caddy_cmd *caddy_cmd;
52 puts("Missing parameter\n");
56 base_addr = simple_strtoul(argv[1], NULL, 16);
57 caddy_interface = (struct caddy_interface *) base_addr;
59 memset((void *)caddy_interface, 0, sizeof(struct caddy_interface));
60 memcpy((void *)&caddy_interface->magic[0], &CADDY_MAGIC, 16);
62 while (ctrlc() == 0) {
63 if (caddy_interface->cmd_in != caddy_interface->cmd_out) {
64 memset(result, 0, 5 * sizeof(result[0]));
66 caddy_cmd = &caddy_interface->cmd[caddy_interface->cmd_out];
67 pci_ptr = (void *)CONFIG_SYS_PCI1_IO_PHYS +
68 (caddy_cmd->addr & 0x001fffff);
70 switch (caddy_cmd->cmd) {
71 case CADDY_CMD_IO_READ_8:
72 result[0] = in_8(pci_ptr);
75 case CADDY_CMD_IO_READ_16:
76 result[0] = in_be16(pci_ptr);
79 case CADDY_CMD_IO_READ_32:
80 result[0] = in_be32(pci_ptr);
83 case CADDY_CMD_IO_WRITE_8:
84 data8 = caddy_cmd->par[0] & 0x000000ff;
85 out_8(pci_ptr, data8);
88 case CADDY_CMD_IO_WRITE_16:
89 data16 = caddy_cmd->par[0] & 0x0000ffff;
90 out_be16(pci_ptr, data16);
93 case CADDY_CMD_IO_WRITE_32:
94 out_be32(pci_ptr, caddy_cmd->par[0]);
97 case CADDY_CMD_CONFIG_READ_8:
98 dev = PCI_BDF(caddy_cmd->par[0],
101 status = pci_read_config_byte(dev,
107 case CADDY_CMD_CONFIG_READ_16:
108 dev = PCI_BDF(caddy_cmd->par[0],
111 status = pci_read_config_word(dev,
117 case CADDY_CMD_CONFIG_READ_32:
118 dev = PCI_BDF(caddy_cmd->par[0],
121 status = pci_read_config_dword(dev,
126 case CADDY_CMD_CONFIG_WRITE_8:
127 dev = PCI_BDF(caddy_cmd->par[0],
130 data8 = caddy_cmd->par[3] & 0x000000ff;
131 status = pci_write_config_byte(dev,
136 case CADDY_CMD_CONFIG_WRITE_16:
137 dev = PCI_BDF(caddy_cmd->par[0],
140 data16 = caddy_cmd->par[3] & 0x0000ffff;
141 status = pci_write_config_word(dev,
146 case CADDY_CMD_CONFIG_WRITE_32:
147 dev = PCI_BDF(caddy_cmd->par[0],
150 status = pci_write_config_dword(dev,
160 generate_answer(caddy_cmd, status, &result[0]);
162 ptr = caddy_interface->cmd_out + 1;
163 ptr = ptr & (CMD_SIZE - 1);
164 caddy_interface->cmd_out = ptr;
167 caddy_interface->heartbeat++;
174 caddy, 2, 0, do_caddy,
175 "Start Caddy server.",
176 "Start Caddy server with Data structure a given addr\n"