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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
178 lines
4.2 KiB
C
178 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* caddy.c -- esd VME8349 support for "missing" access modes in TSI148.
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* Copyright (c) 2009 esd gmbh.
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*
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* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
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*/
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#include <common.h>
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#include <console.h>
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#include <ioports.h>
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#include <mpc83xx.h>
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#include <asm/mpc8349_pci.h>
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#include <pci.h>
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#include <asm/mmu.h>
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#include <asm/io.h>
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#include "caddy.h"
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static struct caddy_interface *caddy_interface;
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void generate_answer(struct caddy_cmd *cmd, uint32_t status, uint32_t *result)
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{
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struct caddy_answer *answer;
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uint32_t ptr;
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answer = &caddy_interface->answer[caddy_interface->answer_in];
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memset((void *)answer, 0, sizeof(struct caddy_answer));
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answer->answer = cmd->cmd;
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answer->issue = cmd->issue;
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answer->status = status;
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memcpy(answer->par, result, 5 * sizeof(result[0]));
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ptr = caddy_interface->answer_in + 1;
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ptr = ptr & (ANSWER_SIZE - 1);
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if (ptr != caddy_interface->answer_out)
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caddy_interface->answer_in = ptr;
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}
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int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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unsigned long base_addr;
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uint32_t ptr;
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struct caddy_cmd *caddy_cmd;
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uint32_t result[5];
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uint16_t data16;
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uint8_t data8;
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uint32_t status;
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pci_dev_t dev;
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void *pci_ptr;
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if (argc < 2) {
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puts("Missing parameter\n");
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return 1;
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}
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base_addr = simple_strtoul(argv[1], NULL, 16);
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caddy_interface = (struct caddy_interface *) base_addr;
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memset((void *)caddy_interface, 0, sizeof(struct caddy_interface));
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memcpy((void *)&caddy_interface->magic[0], &CADDY_MAGIC, 16);
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while (ctrlc() == 0) {
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if (caddy_interface->cmd_in != caddy_interface->cmd_out) {
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memset(result, 0, 5 * sizeof(result[0]));
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status = 0;
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caddy_cmd = &caddy_interface->cmd[caddy_interface->cmd_out];
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pci_ptr = (void *)CONFIG_SYS_PCI1_IO_PHYS +
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(caddy_cmd->addr & 0x001fffff);
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switch (caddy_cmd->cmd) {
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case CADDY_CMD_IO_READ_8:
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result[0] = in_8(pci_ptr);
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break;
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case CADDY_CMD_IO_READ_16:
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result[0] = in_be16(pci_ptr);
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break;
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case CADDY_CMD_IO_READ_32:
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result[0] = in_be32(pci_ptr);
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break;
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case CADDY_CMD_IO_WRITE_8:
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data8 = caddy_cmd->par[0] & 0x000000ff;
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out_8(pci_ptr, data8);
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break;
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case CADDY_CMD_IO_WRITE_16:
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data16 = caddy_cmd->par[0] & 0x0000ffff;
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out_be16(pci_ptr, data16);
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break;
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case CADDY_CMD_IO_WRITE_32:
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out_be32(pci_ptr, caddy_cmd->par[0]);
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break;
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case CADDY_CMD_CONFIG_READ_8:
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dev = PCI_BDF(caddy_cmd->par[0],
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caddy_cmd->par[1],
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caddy_cmd->par[2]);
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status = pci_read_config_byte(dev,
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caddy_cmd->addr,
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&data8);
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result[0] = data8;
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break;
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case CADDY_CMD_CONFIG_READ_16:
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dev = PCI_BDF(caddy_cmd->par[0],
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caddy_cmd->par[1],
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caddy_cmd->par[2]);
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status = pci_read_config_word(dev,
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caddy_cmd->addr,
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&data16);
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result[0] = data16;
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break;
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case CADDY_CMD_CONFIG_READ_32:
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dev = PCI_BDF(caddy_cmd->par[0],
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caddy_cmd->par[1],
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caddy_cmd->par[2]);
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status = pci_read_config_dword(dev,
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caddy_cmd->addr,
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&result[0]);
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break;
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case CADDY_CMD_CONFIG_WRITE_8:
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dev = PCI_BDF(caddy_cmd->par[0],
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caddy_cmd->par[1],
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caddy_cmd->par[2]);
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data8 = caddy_cmd->par[3] & 0x000000ff;
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status = pci_write_config_byte(dev,
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caddy_cmd->addr,
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data8);
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break;
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case CADDY_CMD_CONFIG_WRITE_16:
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dev = PCI_BDF(caddy_cmd->par[0],
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caddy_cmd->par[1],
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caddy_cmd->par[2]);
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data16 = caddy_cmd->par[3] & 0x0000ffff;
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status = pci_write_config_word(dev,
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caddy_cmd->addr,
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data16);
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break;
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case CADDY_CMD_CONFIG_WRITE_32:
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dev = PCI_BDF(caddy_cmd->par[0],
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caddy_cmd->par[1],
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caddy_cmd->par[2]);
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status = pci_write_config_dword(dev,
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caddy_cmd->addr,
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caddy_cmd->par[3]);
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break;
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default:
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status = 0xffffffff;
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break;
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}
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generate_answer(caddy_cmd, status, &result[0]);
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ptr = caddy_interface->cmd_out + 1;
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ptr = ptr & (CMD_SIZE - 1);
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caddy_interface->cmd_out = ptr;
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}
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caddy_interface->heartbeat++;
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}
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return 0;
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}
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U_BOOT_CMD(
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caddy, 2, 0, do_caddy,
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"Start Caddy server.",
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"Start Caddy server with Data structure a given addr\n"
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);
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