| /* |
| * (C) Copyright 2000 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| /* ide.c - ide support functions */ |
| |
| |
| #include <common.h> |
| #if defined(CONFIG_CMD_IDE) |
| #include <ata.h> |
| #include <ide.h> |
| #include <pci.h> |
| |
| int cpci_hd_type; |
| |
| int ata_device(int dev) |
| { |
| int retval; |
| |
| retval = (dev & 1) << 4; |
| if (cpci_hd_type == 2) |
| retval ^= 1 << 4; |
| return retval; |
| } |
| |
| |
| int ide_preinit (void) |
| { |
| int status; |
| pci_dev_t devbusfn; |
| int l; |
| |
| status = 1; |
| cpci_hd_type = 0; |
| if (CPCI750_SLAVE_TEST != 0) |
| return status; |
| for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) { |
| ide_bus_offset[l] = -ATA_STATUS; |
| } |
| devbusfn = pci_find_device (0x1103, 0x0004, 0); |
| if (devbusfn != -1) { |
| cpci_hd_type = 1; |
| } else { |
| devbusfn = pci_find_device (0x1095, 0x3114, 0); |
| if (devbusfn != -1) { |
| cpci_hd_type = 2; |
| } |
| } |
| if (devbusfn != -1) { |
| ulong *ide_bus_offset_ptr; |
| |
| status = 0; |
| |
| ide_bus_offset_ptr = &ide_bus_offset[0]; |
| pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, |
| (u32 *)ide_bus_offset_ptr); |
| ide_bus_offset[0] &= 0xfffffffe; |
| ide_bus_offset[0] += CONFIG_SYS_PCI0_IO_SPACE; |
| ide_bus_offset_ptr = &ide_bus_offset[1]; |
| pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2, |
| (u32 *)ide_bus_offset_ptr); |
| ide_bus_offset[1] &= 0xfffffffe; |
| ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE; |
| } |
| return status; |
| } |
| |
| void ide_set_reset (int flag) { |
| return; |
| } |
| |
| #endif /* of CONFIG_CMDS_IDE */ |
