968d683c04
This patch converts the ISA MMIO bridge code to always use little endian mmio. All bswap code that existed was only there to convert from native cpu endianness to little endian ISA devices. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/*
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* SuperH on-chip PCIC emulation.
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*
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* Copyright (c) 2008 Takashi YOSHII
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "sh.h"
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#include "pci.h"
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#include "pci_host.h"
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#include "sh_pci.h"
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#include "bswap.h"
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typedef struct {
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PCIBus *bus;
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PCIDevice *dev;
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uint32_t par;
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uint32_t mbr;
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uint32_t iobr;
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} SHPCIC;
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static void sh_pci_reg_write (void *p, target_phys_addr_t addr, uint32_t val)
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{
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SHPCIC *pcic = p;
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switch(addr) {
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case 0 ... 0xfc:
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cpu_to_le32w((uint32_t*)(pcic->dev->config + addr), val);
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break;
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case 0x1c0:
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pcic->par = val;
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break;
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case 0x1c4:
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pcic->mbr = val & 0xff000001;
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break;
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case 0x1c8:
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if ((val & 0xfffc0000) != (pcic->iobr & 0xfffc0000)) {
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cpu_register_physical_memory(pcic->iobr & 0xfffc0000, 0x40000,
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IO_MEM_UNASSIGNED);
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pcic->iobr = val & 0xfffc0001;
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isa_mmio_init(pcic->iobr & 0xfffc0000, 0x40000);
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}
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break;
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case 0x220:
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pci_data_write(pcic->bus, pcic->par, val, 4);
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break;
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}
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}
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static uint32_t sh_pci_reg_read (void *p, target_phys_addr_t addr)
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{
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SHPCIC *pcic = p;
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switch(addr) {
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case 0 ... 0xfc:
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return le32_to_cpup((uint32_t*)(pcic->dev->config + addr));
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case 0x1c0:
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return pcic->par;
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case 0x1c4:
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return pcic->mbr;
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case 0x1c8:
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return pcic->iobr;
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case 0x220:
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return pci_data_read(pcic->bus, pcic->par, 4);
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}
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return 0;
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}
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typedef struct {
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CPUReadMemoryFunc * const r[3];
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CPUWriteMemoryFunc * const w[3];
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} MemOp;
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static MemOp sh_pci_reg = {
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{ NULL, NULL, sh_pci_reg_read },
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{ NULL, NULL, sh_pci_reg_write },
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};
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PCIBus *sh_pci_register_bus(pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
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void *opaque, int devfn_min, int nirq)
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{
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SHPCIC *p;
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int reg;
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p = qemu_mallocz(sizeof(SHPCIC));
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p->bus = pci_register_bus(NULL, "pci",
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set_irq, map_irq, opaque, devfn_min, nirq);
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p->dev = pci_register_device(p->bus, "SH PCIC", sizeof(PCIDevice),
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-1, NULL, NULL);
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reg = cpu_register_io_memory(sh_pci_reg.r, sh_pci_reg.w, p,
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DEVICE_NATIVE_ENDIAN);
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cpu_register_physical_memory(0x1e200000, 0x224, reg);
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cpu_register_physical_memory(0xfe200000, 0x224, reg);
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p->iobr = 0xfe240000;
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isa_mmio_init(p->iobr, 0x40000);
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pci_config_set_vendor_id(p->dev->config, PCI_VENDOR_ID_HITACHI);
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pci_config_set_device_id(p->dev->config, PCI_DEVICE_ID_HITACHI_SH7751R);
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p->dev->config[0x04] = 0x80;
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p->dev->config[0x05] = 0x00;
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p->dev->config[0x06] = 0x90;
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p->dev->config[0x07] = 0x02;
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return p->bus;
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}
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