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sungem: Add WOL MMIO

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Apple sungem devices are expected to have WOL MMIO registers.
Add a region to prevent transaction failures, and implement the
WOL-disable CSR write because the Linux driver reset writes
this.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-ID: <20230625201628.65231-1-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Nicholas Piggin 2023-06-26 06:16:28 +10:00 committed by Daniel Henrique Barboza
parent b25f2ffa19
commit bc65beb3a4
2 changed files with 54 additions and 0 deletions
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52
hw/net/sungem.c
View File

@ -107,6 +107,15 @@ OBJECT_DECLARE_SIMPLE_TYPE(SunGEMState, SUNGEM)
#define RXDMA_FTAG 0x0110UL /* RX FIFO Tag */
#define RXDMA_FSZ 0x0120UL /* RX FIFO Size */
/* WOL Registers */
#define SUNGEM_MMIO_WOL_SIZE 0x14
#define WOL_MATCH0 0x0000UL
#define WOL_MATCH1 0x0004UL
#define WOL_MATCH2 0x0008UL
#define WOL_MCOUNT 0x000CUL
#define WOL_WAKECSR 0x0010UL
/* MAC Registers */
#define SUNGEM_MMIO_MAC_SIZE 0x200
@ -168,6 +177,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(SunGEMState, SUNGEM)
#define SUNGEM_MMIO_PCS_SIZE 0x60
#define PCS_MIISTAT 0x0004UL /* PCS MII Status Register */
#define PCS_ISTAT 0x0018UL /* PCS Interrupt Status Reg */
#define PCS_SSTATE 0x005CUL /* Serialink State Register */
/* Descriptors */
@ -200,6 +210,7 @@ struct SunGEMState {
MemoryRegion greg;
MemoryRegion txdma;
MemoryRegion rxdma;
MemoryRegion wol;
MemoryRegion mac;
MemoryRegion mif;
MemoryRegion pcs;
@ -1076,6 +1087,43 @@ static const MemoryRegionOps sungem_mmio_rxdma_ops = {
},
};
static void sungem_mmio_wol_write(void *opaque, hwaddr addr, uint64_t val,
unsigned size)
{
trace_sungem_mmio_wol_write(addr, val);
switch (addr) {
case WOL_WAKECSR:
if (val != 0) {
qemu_log_mask(LOG_UNIMP, "sungem: WOL not supported\n");
}
break;
default:
qemu_log_mask(LOG_UNIMP, "sungem: WOL not supported\n");
}
}
static uint64_t sungem_mmio_wol_read(void *opaque, hwaddr addr, unsigned size)
{
uint32_t val = -1;
qemu_log_mask(LOG_UNIMP, "sungem: WOL not supported\n");
trace_sungem_mmio_wol_read(addr, val);
return val;
}
static const MemoryRegionOps sungem_mmio_wol_ops = {
.read = sungem_mmio_wol_read,
.write = sungem_mmio_wol_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.impl = {
.min_access_size = 4,
.max_access_size = 4,
},
};
static void sungem_mmio_mac_write(void *opaque, hwaddr addr, uint64_t val,
unsigned size)
{
@ -1344,6 +1392,10 @@ static void sungem_realize(PCIDevice *pci_dev, Error **errp)
"sungem.rxdma", SUNGEM_MMIO_RXDMA_SIZE);
memory_region_add_subregion(&s->sungem, 0x4000, &s->rxdma);
memory_region_init_io(&s->wol, OBJECT(s), &sungem_mmio_wol_ops, s,
"sungem.wol", SUNGEM_MMIO_WOL_SIZE);
memory_region_add_subregion(&s->sungem, 0x3000, &s->wol);
memory_region_init_io(&s->mac, OBJECT(s), &sungem_mmio_mac_ops, s,
"sungem.mac", SUNGEM_MMIO_MAC_SIZE);
memory_region_add_subregion(&s->sungem, 0x6000, &s->mac);

2
hw/net/trace-events
View File

@ -350,6 +350,8 @@ sungem_mmio_txdma_write(uint64_t addr, uint64_t val) "MMIO txdma write to 0x%"PR
sungem_mmio_txdma_read(uint64_t addr, uint64_t val) "MMIO txdma read from 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_rxdma_write(uint64_t addr, uint64_t val) "MMIO rxdma write to 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_rxdma_read(uint64_t addr, uint64_t val) "MMIO rxdma read from 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_wol_write(uint64_t addr, uint64_t val) "MMIO wol write to 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_wol_read(uint64_t addr, uint64_t val) "MMIO wol read from 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_mac_write(uint64_t addr, uint64_t val) "MMIO mac write to 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_mac_read(uint64_t addr, uint64_t val) "MMIO mac read from 0x%"PRIx64" val=0x%"PRIx64
sungem_mmio_mif_write(uint64_t addr, uint64_t val) "MMIO mif write to 0x%"PRIx64" val=0x%"PRIx64