Merge remote-tracking branch 'pmaydell/arm-devs.for-upstream' into staging

* pmaydell/arm-devs.for-upstream:
  arm: SoC model for Calxeda Highbank
  arm_boot: support board IDs more than 16 bits wide
  arm: add secondary cpu boot callbacks to arm_boot.c
  ahci: add support for non-PCI based controllers
  Add xgmac ethernet model
This commit is contained in:
Anthony Liguori 2012-01-27 09:00:03 -06:00
commit 31841e463f
6 changed files with 862 additions and 17 deletions

View File

@ -339,7 +339,9 @@ obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
obj-arm-y += arm_l2x0.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += highbank.o
obj-arm-y += pl061.o
obj-arm-y += xgmac.o
obj-arm-y += arm-semi.o
obj-arm-y += pxa2xx.o pxa2xx_pic.o pxa2xx_gpio.o pxa2xx_timer.o pxa2xx_dma.o
obj-arm-y += pxa2xx_lcd.o pxa2xx_mmci.o pxa2xx_pcmcia.o pxa2xx_keypad.o

View File

@ -30,12 +30,29 @@ struct arm_boot_info {
const char *kernel_cmdline;
const char *initrd_filename;
target_phys_addr_t loader_start;
/* multicore boards that use the default secondary core boot functions
* need to put the address of the secondary boot code, the boot reg,
* and the GIC address in the next 3 values, respectively. boards that
* have their own boot functions can use these values as they want.
*/
target_phys_addr_t smp_loader_start;
target_phys_addr_t smp_bootreg_addr;
target_phys_addr_t smp_priv_base;
int nb_cpus;
int board_id;
int (*atag_board)(const struct arm_boot_info *info, void *p);
/* multicore boards that use the default secondary core boot functions
* can ignore these two function calls. If the default functions won't
* work, then write_secondary_boot() should write a suitable blob of
* code mimicing the secondary CPU startup process used by the board's
* boot loader/boot ROM code, and secondary_cpu_reset_hook() should
* perform any necessary CPU reset handling and set the PC for thei
* secondary CPUs to point at this boot blob.
*/
void (*write_secondary_boot)(CPUState *env,
const struct arm_boot_info *info);
void (*secondary_cpu_reset_hook)(CPUState *env,
const struct arm_boot_info *info);
/* Used internally by arm_boot.c */
int is_linux;
target_phys_addr_t initrd_size;

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@ -20,16 +20,28 @@
/* The worlds second smallest bootloader. Set r0-r2, then jump to kernel. */
static uint32_t bootloader[] = {
0xe3a00000, /* mov r0, #0 */
0xe3a01000, /* mov r1, #0x?? */
0xe3811c00, /* orr r1, r1, #0x??00 */
0xe59f2000, /* ldr r2, [pc, #0] */
0xe59ff000, /* ldr pc, [pc, #0] */
0xe59f1004, /* ldr r1, [pc, #4] */
0xe59f2004, /* ldr r2, [pc, #4] */
0xe59ff004, /* ldr pc, [pc, #4] */
0, /* Board ID */
0, /* Address of kernel args. Set by integratorcp_init. */
0 /* Kernel entry point. Set by integratorcp_init. */
};
/* Entry point for secondary CPUs. Enable interrupt controller and
Issue WFI until start address is written to system controller. */
/* Handling for secondary CPU boot in a multicore system.
* Unlike the uniprocessor/primary CPU boot, this is platform
* dependent. The default code here is based on the secondary
* CPU boot protocol used on realview/vexpress boards, with
* some parameterisation to increase its flexibility.
* QEMU platform models for which this code is not appropriate
* should override write_secondary_boot and secondary_cpu_reset_hook
* instead.
*
* This code enables the interrupt controllers for the secondary
* CPUs and then puts all the secondary CPUs into a loop waiting
* for an interprocessor interrupt and polling a configurable
* location for the kernel secondary CPU entry point.
*/
static uint32_t smpboot[] = {
0xe59f201c, /* ldr r2, privbase */
0xe59f001c, /* ldr r0, startaddr */
@ -44,6 +56,26 @@ static uint32_t smpboot[] = {
0 /* bootreg: Boot register address is held here */
};
static void default_write_secondary(CPUState *env,
const struct arm_boot_info *info)
{
int n;
smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr;
smpboot[ARRAY_SIZE(smpboot) - 2] = info->smp_priv_base;
for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
smpboot[n] = tswap32(smpboot[n]);
}
rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
info->smp_loader_start);
}
static void default_reset_secondary(CPUState *env,
const struct arm_boot_info *info)
{
stl_phys_notdirty(info->smp_bootreg_addr, 0);
env->regs[15] = info->smp_loader_start;
}
#define WRITE_WORD(p, value) do { \
stl_phys_notdirty(p, value); \
p += 4; \
@ -197,8 +229,7 @@ static void do_cpu_reset(void *opaque)
info->loader_start);
}
} else {
stl_phys_notdirty(info->smp_bootreg_addr, 0);
env->regs[15] = info->smp_loader_start;
info->secondary_cpu_reset_hook(env, info);
}
}
}
@ -220,6 +251,13 @@ void arm_load_kernel(CPUState *env, struct arm_boot_info *info)
exit(1);
}
if (!info->secondary_cpu_reset_hook) {
info->secondary_cpu_reset_hook = default_reset_secondary;
}
if (!info->write_secondary_boot) {
info->write_secondary_boot = default_write_secondary;
}
if (info->nb_cpus == 0)
info->nb_cpus = 1;
@ -263,8 +301,7 @@ void arm_load_kernel(CPUState *env, struct arm_boot_info *info)
} else {
initrd_size = 0;
}
bootloader[1] |= info->board_id & 0xff;
bootloader[2] |= (info->board_id >> 8) & 0xff;
bootloader[4] = info->board_id;
bootloader[5] = info->loader_start + KERNEL_ARGS_ADDR;
bootloader[6] = entry;
for (n = 0; n < sizeof(bootloader) / 4; n++) {
@ -273,13 +310,7 @@ void arm_load_kernel(CPUState *env, struct arm_boot_info *info)
rom_add_blob_fixed("bootloader", bootloader, sizeof(bootloader),
info->loader_start);
if (info->nb_cpus > 1) {
smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr;
smpboot[ARRAY_SIZE(smpboot) - 2] = info->smp_priv_base;
for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
smpboot[n] = tswap32(smpboot[n]);
}
rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
info->smp_loader_start);
info->write_secondary_boot(env, info);
}
info->initrd_size = initrd_size;
}

330
hw/highbank.c Normal file
View File

@ -0,0 +1,330 @@
/*
* Calxeda Highbank SoC emulation
*
* Copyright (c) 2010-2012 Calxeda
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "sysbus.h"
#include "arm-misc.h"
#include "primecell.h"
#include "devices.h"
#include "loader.h"
#include "net.h"
#include "sysemu.h"
#include "boards.h"
#include "sysbus.h"
#include "blockdev.h"
#include "exec-memory.h"
#define SMP_BOOT_ADDR 0x100
#define SMP_BOOT_REG 0x40
#define GIC_BASE_ADDR 0xfff10000
#define NIRQ_GIC 160
/* Board init. */
static void highbank_cpu_reset(void *opaque)
{
CPUState *env = opaque;
env->cp15.c15_config_base_address = GIC_BASE_ADDR;
}
static void hb_write_secondary(CPUState *env, const struct arm_boot_info *info)
{
int n;
uint32_t smpboot[] = {
0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
0xe210000f, /* ands r0, r0, #0x0f */
0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
0xe0830200, /* add r0, r3, r0, lsl #4 */
0xe59f2018, /* ldr r2, privbase */
0xe3a01001, /* mov r1, #1 */
0xe5821100, /* str r1, [r2, #256] */
0xe320f003, /* wfi */
0xe5901000, /* ldr r1, [r0] */
0xe1110001, /* tst r1, r1 */
0x0afffffb, /* beq <wfi> */
0xe12fff11, /* bx r1 */
GIC_BASE_ADDR /* privbase: gic address. */
};
for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
smpboot[n] = tswap32(smpboot[n]);
}
rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
}
static void hb_reset_secondary(CPUState *env, const struct arm_boot_info *info)
{
switch (info->nb_cpus) {
case 4:
stl_phys_notdirty(SMP_BOOT_REG + 0x30, 0);
case 3:
stl_phys_notdirty(SMP_BOOT_REG + 0x20, 0);
case 2:
stl_phys_notdirty(SMP_BOOT_REG + 0x10, 0);
env->regs[15] = SMP_BOOT_ADDR;
break;
default:
break;
}
}
#define NUM_REGS 0x200
static void hb_regs_write(void *opaque, target_phys_addr_t offset,
uint64_t value, unsigned size)
{
uint32_t *regs = opaque;
if (offset == 0xf00) {
if (value == 1 || value == 2) {
qemu_system_reset_request();
} else if (value == 3) {
qemu_system_shutdown_request();
}
}
regs[offset/4] = value;
}
static uint64_t hb_regs_read(void *opaque, target_phys_addr_t offset,
unsigned size)
{
uint32_t *regs = opaque;
uint32_t value = regs[offset/4];
if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
value |= 0x30000000;
}
return value;
}
static const MemoryRegionOps hb_mem_ops = {
.read = hb_regs_read,
.write = hb_regs_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
typedef struct {
SysBusDevice busdev;
MemoryRegion *iomem;
uint32_t regs[NUM_REGS];
} HighbankRegsState;
static VMStateDescription vmstate_highbank_regs = {
.name = "highbank-regs",
.version_id = 0,
.minimum_version_id = 0,
.minimum_version_id_old = 0,
.fields = (VMStateField[]) {
VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
VMSTATE_END_OF_LIST(),
},
};
static void highbank_regs_reset(DeviceState *dev)
{
SysBusDevice *sys_dev = sysbus_from_qdev(dev);
HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, sys_dev);
s->regs[0x40] = 0x05F20121;
s->regs[0x41] = 0x2;
s->regs[0x42] = 0x05F30121;
s->regs[0x43] = 0x05F40121;
}
static int highbank_regs_init(SysBusDevice *dev)
{
HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, dev);
s->iomem = g_new(MemoryRegion, 1);
memory_region_init_io(s->iomem, &hb_mem_ops, s->regs, "highbank_regs",
0x1000);
sysbus_init_mmio(dev, s->iomem);
return 0;
}
static SysBusDeviceInfo highbank_regs_info = {
.init = highbank_regs_init,
.qdev.name = "highbank-regs",
.qdev.desc = "Calxeda Highbank registers",
.qdev.size = sizeof(HighbankRegsState),
.qdev.vmsd = &vmstate_highbank_regs,
.qdev.reset = highbank_regs_reset,
};
static void highbank_regs_register_device(void)
{
sysbus_register_withprop(&highbank_regs_info);
}
device_init(highbank_regs_register_device)
static struct arm_boot_info highbank_binfo;
/* ram_size must be set to match the upper bound of memory in the
* device tree (linux/arch/arm/boot/dts/highbank.dts), which is
* normally 0xff900000 or -m 4089. When running this board on a
* 32-bit host, set the reg value of memory to 0xf7ff00000 in the
* device tree and pass -m 2047 to QEMU.
*/
static void highbank_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
CPUState *env = NULL;
DeviceState *dev;
SysBusDevice *busdev;
qemu_irq *irqp;
qemu_irq pic[128];
int n;
qemu_irq cpu_irq[4];
MemoryRegion *sysram;
MemoryRegion *dram;
MemoryRegion *sysmem;
char *sysboot_filename;
if (!cpu_model) {
cpu_model = "cortex-a9";
}
for (n = 0; n < smp_cpus; n++) {
env = cpu_init(cpu_model);
if (!env) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
irqp = arm_pic_init_cpu(env);
cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
qemu_register_reset(highbank_cpu_reset, env);
}
sysmem = get_system_memory();
dram = g_new(MemoryRegion, 1);
memory_region_init_ram(dram, "highbank.dram", ram_size);
/* SDRAM at address zero. */
memory_region_add_subregion(sysmem, 0, dram);
sysram = g_new(MemoryRegion, 1);
memory_region_init_ram(sysram, "highbank.sysram", 0x8000);
memory_region_add_subregion(sysmem, 0xfff88000, sysram);
if (bios_name != NULL) {
sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (sysboot_filename != NULL) {
uint32_t filesize = get_image_size(sysboot_filename);
if (load_image_targphys("sysram.bin", 0xfff88000, filesize) < 0) {
hw_error("Unable to load %s\n", bios_name);
}
} else {
hw_error("Unable to find %s\n", bios_name);
}
}
dev = qdev_create(NULL, "a9mpcore_priv");
qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, GIC_BASE_ADDR);
for (n = 0; n < smp_cpus; n++) {
sysbus_connect_irq(busdev, n, cpu_irq[n]);
}
for (n = 0; n < 128; n++) {
pic[n] = qdev_get_gpio_in(dev, n);
}
dev = qdev_create(NULL, "l2x0");
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, 0xfff12000);
dev = qdev_create(NULL, "sp804");
qdev_prop_set_uint32(dev, "freq0", 150000000);
qdev_prop_set_uint32(dev, "freq1", 150000000);
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, 0xfff34000);
sysbus_connect_irq(busdev, 0, pic[18]);
sysbus_create_simple("pl011", 0xfff36000, pic[20]);
dev = qdev_create(NULL, "highbank-regs");
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, 0xfff3c000);
sysbus_create_simple("pl061", 0xfff30000, pic[14]);
sysbus_create_simple("pl061", 0xfff31000, pic[15]);
sysbus_create_simple("pl061", 0xfff32000, pic[16]);
sysbus_create_simple("pl061", 0xfff33000, pic[17]);
sysbus_create_simple("pl031", 0xfff35000, pic[19]);
sysbus_create_simple("pl022", 0xfff39000, pic[23]);
sysbus_create_simple("sysbus-ahci", 0xffe08000, pic[83]);
if (nd_table[0].vlan) {
qemu_check_nic_model(&nd_table[0], "xgmac");
dev = qdev_create(NULL, "xgmac");
qdev_set_nic_properties(dev, &nd_table[0]);
qdev_init_nofail(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff50000);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[77]);
sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[78]);
sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[79]);
qemu_check_nic_model(&nd_table[1], "xgmac");
dev = qdev_create(NULL, "xgmac");
qdev_set_nic_properties(dev, &nd_table[1]);
qdev_init_nofail(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff51000);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[80]);
sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[81]);
sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[82]);
}
highbank_binfo.ram_size = ram_size;
highbank_binfo.kernel_filename = kernel_filename;
highbank_binfo.kernel_cmdline = kernel_cmdline;
highbank_binfo.initrd_filename = initrd_filename;
/* highbank requires a dtb in order to boot, and the dtb will override
* the board ID. The following value is ignored, so set it to -1 to be
* clear that the value is meaningless.
*/
highbank_binfo.board_id = -1;
highbank_binfo.nb_cpus = smp_cpus;
highbank_binfo.loader_start = 0;
highbank_binfo.write_secondary_boot = hb_write_secondary;
highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
arm_load_kernel(first_cpu, &highbank_binfo);
}
static QEMUMachine highbank_machine = {
.name = "highbank",
.desc = "Calxeda Highbank (ECX-1000)",
.init = highbank_init,
.use_scsi = 1,
.max_cpus = 4,
};
static void highbank_machine_init(void)
{
qemu_register_machine(&highbank_machine);
}
machine_init(highbank_machine_init);

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@ -25,6 +25,7 @@
#include <hw/msi.h>
#include <hw/pc.h>
#include <hw/pci.h>
#include <hw/sysbus.h>
#include "monitor.h"
#include "dma.h"
@ -1214,3 +1215,46 @@ void ahci_reset(void *opaque)
ahci_reset_port(&d->ahci, i);
}
}
typedef struct SysbusAHCIState {
SysBusDevice busdev;
AHCIState ahci;
uint32_t num_ports;
} SysbusAHCIState;
static const VMStateDescription vmstate_sysbus_ahci = {
.name = "sysbus-ahci",
.unmigratable = 1,
};
static int sysbus_ahci_init(SysBusDevice *dev)
{
SysbusAHCIState *s = FROM_SYSBUS(SysbusAHCIState, dev);
ahci_init(&s->ahci, &dev->qdev, s->num_ports);
sysbus_init_mmio(dev, &s->ahci.mem);
sysbus_init_irq(dev, &s->ahci.irq);
qemu_register_reset(ahci_reset, &s->ahci);
return 0;
}
static SysBusDeviceInfo sysbus_ahci_info = {
.qdev.name = "sysbus-ahci",
.qdev.size = sizeof(SysbusAHCIState),
.qdev.vmsd = &vmstate_sysbus_ahci,
.qdev.props = (Property[]) {
DEFINE_PROP_UINT32("num-ports", SysbusAHCIState, num_ports, 1),
DEFINE_PROP_END_OF_LIST(),
},
.init = sysbus_ahci_init,
};
static void sysbus_ahci_register(void)
{
sysbus_register_withprop(&sysbus_ahci_info);
}
device_init(sysbus_ahci_register);

421
hw/xgmac.c Normal file
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@ -0,0 +1,421 @@
/*
* QEMU model of XGMAC Ethernet.
*
* derived from the Xilinx AXI-Ethernet by Edgar E. Iglesias.
*
* Copyright (c) 2011 Calxeda, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "sysbus.h"
#include "qemu-char.h"
#include "qemu-log.h"
#include "net.h"
#include "net/checksum.h"
#ifdef DEBUG_XGMAC
#define DEBUGF_BRK(message, args...) do { \
fprintf(stderr, (message), ## args); \
} while (0)
#else
#define DEBUGF_BRK(message, args...) do { } while (0)
#endif
#define XGMAC_CONTROL 0x00000000 /* MAC Configuration */
#define XGMAC_FRAME_FILTER 0x00000001 /* MAC Frame Filter */
#define XGMAC_FLOW_CTRL 0x00000006 /* MAC Flow Control */
#define XGMAC_VLAN_TAG 0x00000007 /* VLAN Tags */
#define XGMAC_VERSION 0x00000008 /* Version */
/* VLAN tag for insertion or replacement into tx frames */
#define XGMAC_VLAN_INCL 0x00000009
#define XGMAC_LPI_CTRL 0x0000000a /* LPI Control and Status */
#define XGMAC_LPI_TIMER 0x0000000b /* LPI Timers Control */
#define XGMAC_TX_PACE 0x0000000c /* Transmit Pace and Stretch */
#define XGMAC_VLAN_HASH 0x0000000d /* VLAN Hash Table */
#define XGMAC_DEBUG 0x0000000e /* Debug */
#define XGMAC_INT_STATUS 0x0000000f /* Interrupt and Control */
/* HASH table registers */
#define XGMAC_HASH(n) ((0x00000300/4) + (n))
#define XGMAC_NUM_HASH 16
/* Operation Mode */
#define XGMAC_OPMODE (0x00000400/4)
/* Remote Wake-Up Frame Filter */
#define XGMAC_REMOTE_WAKE (0x00000700/4)
/* PMT Control and Status */
#define XGMAC_PMT (0x00000704/4)
#define XGMAC_ADDR_HIGH(reg) (0x00000010+((reg) * 2))
#define XGMAC_ADDR_LOW(reg) (0x00000011+((reg) * 2))
#define DMA_BUS_MODE 0x000003c0 /* Bus Mode */
#define DMA_XMT_POLL_DEMAND 0x000003c1 /* Transmit Poll Demand */
#define DMA_RCV_POLL_DEMAND 0x000003c2 /* Received Poll Demand */
#define DMA_RCV_BASE_ADDR 0x000003c3 /* Receive List Base */
#define DMA_TX_BASE_ADDR 0x000003c4 /* Transmit List Base */
#define DMA_STATUS 0x000003c5 /* Status Register */
#define DMA_CONTROL 0x000003c6 /* Ctrl (Operational Mode) */
#define DMA_INTR_ENA 0x000003c7 /* Interrupt Enable */
#define DMA_MISSED_FRAME_CTR 0x000003c8 /* Missed Frame Counter */
/* Receive Interrupt Watchdog Timer */
#define DMA_RI_WATCHDOG_TIMER 0x000003c9
#define DMA_AXI_BUS 0x000003ca /* AXI Bus Mode */
#define DMA_AXI_STATUS 0x000003cb /* AXI Status */
#define DMA_CUR_TX_DESC_ADDR 0x000003d2 /* Current Host Tx Descriptor */
#define DMA_CUR_RX_DESC_ADDR 0x000003d3 /* Current Host Rx Descriptor */
#define DMA_CUR_TX_BUF_ADDR 0x000003d4 /* Current Host Tx Buffer */
#define DMA_CUR_RX_BUF_ADDR 0x000003d5 /* Current Host Rx Buffer */
#define DMA_HW_FEATURE 0x000003d6 /* Enabled Hardware Features */
/* DMA Status register defines */
#define DMA_STATUS_GMI 0x08000000 /* MMC interrupt */
#define DMA_STATUS_GLI 0x04000000 /* GMAC Line interface int */
#define DMA_STATUS_EB_MASK 0x00380000 /* Error Bits Mask */
#define DMA_STATUS_EB_TX_ABORT 0x00080000 /* Error Bits - TX Abort */
#define DMA_STATUS_EB_RX_ABORT 0x00100000 /* Error Bits - RX Abort */
#define DMA_STATUS_TS_MASK 0x00700000 /* Transmit Process State */
#define DMA_STATUS_TS_SHIFT 20
#define DMA_STATUS_RS_MASK 0x000e0000 /* Receive Process State */
#define DMA_STATUS_RS_SHIFT 17
#define DMA_STATUS_NIS 0x00010000 /* Normal Interrupt Summary */
#define DMA_STATUS_AIS 0x00008000 /* Abnormal Interrupt Summary */
#define DMA_STATUS_ERI 0x00004000 /* Early Receive Interrupt */
#define DMA_STATUS_FBI 0x00002000 /* Fatal Bus Error Interrupt */
#define DMA_STATUS_ETI 0x00000400 /* Early Transmit Interrupt */
#define DMA_STATUS_RWT 0x00000200 /* Receive Watchdog Timeout */
#define DMA_STATUS_RPS 0x00000100 /* Receive Process Stopped */
#define DMA_STATUS_RU 0x00000080 /* Receive Buffer Unavailable */
#define DMA_STATUS_RI 0x00000040 /* Receive Interrupt */
#define DMA_STATUS_UNF 0x00000020 /* Transmit Underflow */
#define DMA_STATUS_OVF 0x00000010 /* Receive Overflow */
#define DMA_STATUS_TJT 0x00000008 /* Transmit Jabber Timeout */
#define DMA_STATUS_TU 0x00000004 /* Transmit Buffer Unavailable */
#define DMA_STATUS_TPS 0x00000002 /* Transmit Process Stopped */
#define DMA_STATUS_TI 0x00000001 /* Transmit Interrupt */
/* DMA Control register defines */
#define DMA_CONTROL_ST 0x00002000 /* Start/Stop Transmission */
#define DMA_CONTROL_SR 0x00000002 /* Start/Stop Receive */
#define DMA_CONTROL_DFF 0x01000000 /* Disable flush of rx frames */
struct desc {
uint32_t ctl_stat;
uint16_t buffer1_size;
uint16_t buffer2_size;
uint32_t buffer1_addr;
uint32_t buffer2_addr;
uint32_t ext_stat;
uint32_t res[3];
};
#define R_MAX 0x400
typedef struct RxTxStats {
uint64_t rx_bytes;
uint64_t tx_bytes;
uint64_t rx;
uint64_t rx_bcast;
uint64_t rx_mcast;
} RxTxStats;
typedef struct XgmacState {
SysBusDevice busdev;
MemoryRegion iomem;
qemu_irq sbd_irq;
qemu_irq pmt_irq;
qemu_irq mci_irq;
NICState *nic;
NICConf conf;
struct RxTxStats stats;
uint32_t regs[R_MAX];
} XgmacState;
const VMStateDescription vmstate_rxtx_stats = {
.name = "xgmac_stats",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(rx_bytes, RxTxStats),
VMSTATE_UINT64(tx_bytes, RxTxStats),
VMSTATE_UINT64(rx, RxTxStats),
VMSTATE_UINT64(rx_bcast, RxTxStats),
VMSTATE_UINT64(rx_mcast, RxTxStats),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_xgmac = {
.name = "xgmac",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(stats, XgmacState, 0, vmstate_rxtx_stats, RxTxStats),
VMSTATE_UINT32_ARRAY(regs, XgmacState, R_MAX),
VMSTATE_END_OF_LIST()
}
};
static void xgmac_read_desc(struct XgmacState *s, struct desc *d, int rx)
{
uint32_t addr = rx ? s->regs[DMA_CUR_RX_DESC_ADDR] :
s->regs[DMA_CUR_TX_DESC_ADDR];
cpu_physical_memory_read(addr, d, sizeof(*d));
}
static void xgmac_write_desc(struct XgmacState *s, struct desc *d, int rx)
{
int reg = rx ? DMA_CUR_RX_DESC_ADDR : DMA_CUR_TX_DESC_ADDR;
uint32_t addr = s->regs[reg];
if (!rx && (d->ctl_stat & 0x00200000)) {
s->regs[reg] = s->regs[DMA_TX_BASE_ADDR];
} else if (rx && (d->buffer1_size & 0x8000)) {
s->regs[reg] = s->regs[DMA_RCV_BASE_ADDR];
} else {
s->regs[reg] += sizeof(*d);
}
cpu_physical_memory_write(addr, d, sizeof(*d));
}
static void xgmac_enet_send(struct XgmacState *s)
{
struct desc bd;
int frame_size;
int len;
uint8_t frame[8192];
uint8_t *ptr;
ptr = frame;
frame_size = 0;
while (1) {
xgmac_read_desc(s, &bd, 0);
if ((bd.ctl_stat & 0x80000000) == 0) {
/* Run out of descriptors to transmit. */
break;
}
len = (bd.buffer1_size & 0xfff) + (bd.buffer2_size & 0xfff);
if ((bd.buffer1_size & 0xfff) > 2048) {
DEBUGF_BRK("qemu:%s:ERROR...ERROR...ERROR... -- "
"xgmac buffer 1 len on send > 2048 (0x%x)\n",
__func__, bd.buffer1_size & 0xfff);
}
if ((bd.buffer2_size & 0xfff) != 0) {
DEBUGF_BRK("qemu:%s:ERROR...ERROR...ERROR... -- "
"xgmac buffer 2 len on send != 0 (0x%x)\n",
__func__, bd.buffer2_size & 0xfff);
}
if (len >= sizeof(frame)) {
DEBUGF_BRK("qemu:%s: buffer overflow %d read into %zu "
"buffer\n" , __func__, len, sizeof(frame));
DEBUGF_BRK("qemu:%s: buffer1.size=%d; buffer2.size=%d\n",
__func__, bd.buffer1_size, bd.buffer2_size);
}
cpu_physical_memory_read(bd.buffer1_addr, ptr, len);
ptr += len;
frame_size += len;
if (bd.ctl_stat & 0x20000000) {
/* Last buffer in frame. */
qemu_send_packet(&s->nic->nc, frame, len);
ptr = frame;
frame_size = 0;
s->regs[DMA_STATUS] |= DMA_STATUS_TI | DMA_STATUS_NIS;
}
bd.ctl_stat &= ~0x80000000;
/* Write back the modified descriptor. */
xgmac_write_desc(s, &bd, 0);
}
}
static void enet_update_irq(struct XgmacState *s)
{
int stat = s->regs[DMA_STATUS] & s->regs[DMA_INTR_ENA];
qemu_set_irq(s->sbd_irq, !!stat);
}
static uint64_t enet_read(void *opaque, target_phys_addr_t addr, unsigned size)
{
struct XgmacState *s = opaque;
uint64_t r = 0;
addr >>= 2;
switch (addr) {
case XGMAC_VERSION:
r = 0x1012;
break;
default:
if (addr < ARRAY_SIZE(s->regs)) {
r = s->regs[addr];
}
break;
}
return r;
}
static void enet_write(void *opaque, target_phys_addr_t addr,
uint64_t value, unsigned size)
{
struct XgmacState *s = opaque;
addr >>= 2;
switch (addr) {
case DMA_BUS_MODE:
s->regs[DMA_BUS_MODE] = value & ~0x1;
break;
case DMA_XMT_POLL_DEMAND:
xgmac_enet_send(s);
break;
case DMA_STATUS:
s->regs[DMA_STATUS] = s->regs[DMA_STATUS] & ~value;
break;
case DMA_RCV_BASE_ADDR:
s->regs[DMA_RCV_BASE_ADDR] = s->regs[DMA_CUR_RX_DESC_ADDR] = value;
break;
case DMA_TX_BASE_ADDR:
s->regs[DMA_TX_BASE_ADDR] = s->regs[DMA_CUR_TX_DESC_ADDR] = value;
break;
default:
if (addr < ARRAY_SIZE(s->regs)) {
s->regs[addr] = value;
}
break;
}
enet_update_irq(s);
}
static const MemoryRegionOps enet_mem_ops = {
.read = enet_read,
.write = enet_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static int eth_can_rx(VLANClientState *nc)
{
struct XgmacState *s = DO_UPCAST(NICState, nc, nc)->opaque;
/* RX enabled? */
return s->regs[DMA_CONTROL] & DMA_CONTROL_SR;
}
static ssize_t eth_rx(VLANClientState *nc, const uint8_t *buf, size_t size)
{
struct XgmacState *s = DO_UPCAST(NICState, nc, nc)->opaque;
static const unsigned char sa_bcast[6] = {0xff, 0xff, 0xff,
0xff, 0xff, 0xff};
int unicast, broadcast, multicast;
struct desc bd;
ssize_t ret;
unicast = ~buf[0] & 0x1;
broadcast = memcmp(buf, sa_bcast, 6) == 0;
multicast = !unicast && !broadcast;
if (size < 12) {
s->regs[DMA_STATUS] |= DMA_STATUS_RI | DMA_STATUS_NIS;
ret = -1;
goto out;
}
xgmac_read_desc(s, &bd, 1);
if ((bd.ctl_stat & 0x80000000) == 0) {
s->regs[DMA_STATUS] |= DMA_STATUS_RU | DMA_STATUS_AIS;
ret = size;
goto out;
}
cpu_physical_memory_write(bd.buffer1_addr, buf, size);
/* Add in the 4 bytes for crc (the real hw returns length incl crc) */
size += 4;
bd.ctl_stat = (size << 16) | 0x300;
xgmac_write_desc(s, &bd, 1);
s->stats.rx_bytes += size;
s->stats.rx++;
if (multicast) {
s->stats.rx_mcast++;
} else if (broadcast) {
s->stats.rx_bcast++;
}
s->regs[DMA_STATUS] |= DMA_STATUS_RI | DMA_STATUS_NIS;
ret = size;
out:
enet_update_irq(s);
return ret;
}
static void eth_cleanup(VLANClientState *nc)
{
struct XgmacState *s = DO_UPCAST(NICState, nc, nc)->opaque;
s->nic = NULL;
}
static NetClientInfo net_xgmac_enet_info = {
.type = NET_CLIENT_TYPE_NIC,
.size = sizeof(NICState),
.can_receive = eth_can_rx,
.receive = eth_rx,
.cleanup = eth_cleanup,
};
static int xgmac_enet_init(SysBusDevice *dev)
{
struct XgmacState *s = FROM_SYSBUS(typeof(*s), dev);
memory_region_init_io(&s->iomem, &enet_mem_ops, s, "xgmac", 0x1000);
sysbus_init_mmio(dev, &s->iomem);
sysbus_init_irq(dev, &s->sbd_irq);
sysbus_init_irq(dev, &s->pmt_irq);
sysbus_init_irq(dev, &s->mci_irq);
qemu_macaddr_default_if_unset(&s->conf.macaddr);
s->nic = qemu_new_nic(&net_xgmac_enet_info, &s->conf,
dev->qdev.info->name, dev->qdev.id, s);
qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
s->regs[XGMAC_ADDR_HIGH(0)] = (s->conf.macaddr.a[5] << 8) |
s->conf.macaddr.a[4];
s->regs[XGMAC_ADDR_LOW(0)] = (s->conf.macaddr.a[3] << 24) |
(s->conf.macaddr.a[2] << 16) |
(s->conf.macaddr.a[1] << 8) |
s->conf.macaddr.a[0];
return 0;
}
static SysBusDeviceInfo xgmac_enet_info = {
.init = xgmac_enet_init,
.qdev.name = "xgmac",
.qdev.size = sizeof(struct XgmacState),
.qdev.vmsd = &vmstate_xgmac,
.qdev.props = (Property[]) {
DEFINE_NIC_PROPERTIES(struct XgmacState, conf),
DEFINE_PROP_END_OF_LIST(),
}
};
static void xgmac_enet_register(void)
{
sysbus_register_withprop(&xgmac_enet_info);
}
device_init(xgmac_enet_register)