* This code is licensed under the GPL.
*/
-#include "hw.h"
-#include "qemu-timer.h"
-#include "sysbus.h"
-#include "primecell.h"
-#include "sysemu.h"
+#include "hw/hw.h"
+#include "qemu/timer.h"
+#include "qemu/bitops.h"
+#include "hw/sysbus.h"
+#include "hw/primecell.h"
+#include "sysemu/sysemu.h"
#define LOCK_VALUE 0xa05f
uint32_t sys_cfgctrl;
uint32_t sys_cfgstat;
uint32_t sys_clcd;
+ uint32_t mb_clock[6];
+ uint32_t *db_clock;
+ uint32_t db_num_vsensors;
+ uint32_t *db_voltage;
+ uint32_t db_num_clocks;
+ uint32_t *db_clock_reset;
} arm_sysctl_state;
static const VMStateDescription vmstate_arm_sysctl = {
.name = "realview_sysctl",
- .version_id = 3,
+ .version_id = 4,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(leds, arm_sysctl_state),
VMSTATE_UINT32_V(sys_cfgctrl, arm_sysctl_state, 2),
VMSTATE_UINT32_V(sys_cfgstat, arm_sysctl_state, 2),
VMSTATE_UINT32_V(sys_clcd, arm_sysctl_state, 3),
+ VMSTATE_UINT32_ARRAY_V(mb_clock, arm_sysctl_state, 6, 4),
+ VMSTATE_VARRAY_UINT32(db_clock, arm_sysctl_state, db_num_clocks,
+ 4, vmstate_info_uint32, uint32_t),
VMSTATE_END_OF_LIST()
}
};
static void arm_sysctl_reset(DeviceState *d)
{
- arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, sysbus_from_qdev(d));
+ arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, SYS_BUS_DEVICE(d));
+ int i;
s->leds = 0;
s->lockval = 0;
s->cfgdata2 = 0;
s->flags = 0;
s->resetlevel = 0;
+ /* Motherboard oscillators (in Hz) */
+ s->mb_clock[0] = 50000000; /* Static memory clock: 50MHz */
+ s->mb_clock[1] = 23750000; /* motherboard CLCD clock: 23.75MHz */
+ s->mb_clock[2] = 24000000; /* IO FPGA peripheral clock: 24MHz */
+ s->mb_clock[3] = 24000000; /* IO FPGA reserved clock: 24MHz */
+ s->mb_clock[4] = 24000000; /* System bus global clock: 24MHz */
+ s->mb_clock[5] = 24000000; /* IO FPGA reserved clock: 24MHz */
+ /* Daughterboard oscillators: reset from property values */
+ for (i = 0; i < s->db_num_clocks; i++) {
+ s->db_clock[i] = s->db_clock_reset[i];
+ }
if (board_id(s) == BOARD_ID_VEXPRESS) {
/* On VExpress this register will RAZ/WI */
s->sys_clcd = 0;
}
}
-static uint64_t arm_sysctl_read(void *opaque, target_phys_addr_t offset,
+static uint64_t arm_sysctl_read(void *opaque, hwaddr offset,
unsigned size)
{
arm_sysctl_state *s = (arm_sysctl_state *)opaque;
return s->sys_cfgstat;
default:
bad_reg:
- printf ("arm_sysctl_read: Bad register offset 0x%x\n", (int)offset);
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "arm_sysctl_read: Bad register offset 0x%x\n",
+ (int)offset);
return 0;
}
}
-static void arm_sysctl_write(void *opaque, target_phys_addr_t offset,
+/* SYS_CFGCTRL functions */
+#define SYS_CFG_OSC 1
+#define SYS_CFG_VOLT 2
+#define SYS_CFG_AMP 3
+#define SYS_CFG_TEMP 4
+#define SYS_CFG_RESET 5
+#define SYS_CFG_SCC 6
+#define SYS_CFG_MUXFPGA 7
+#define SYS_CFG_SHUTDOWN 8
+#define SYS_CFG_REBOOT 9
+#define SYS_CFG_DVIMODE 11
+#define SYS_CFG_POWER 12
+#define SYS_CFG_ENERGY 13
+
+/* SYS_CFGCTRL site field values */
+#define SYS_CFG_SITE_MB 0
+#define SYS_CFG_SITE_DB1 1
+#define SYS_CFG_SITE_DB2 2
+
+/**
+ * vexpress_cfgctrl_read:
+ * @s: arm_sysctl_state pointer
+ * @dcc, @function, @site, @position, @device: split out values from
+ * SYS_CFGCTRL register
+ * @val: pointer to where to put the read data on success
+ *
+ * Handle a VExpress SYS_CFGCTRL register read. On success, return true and
+ * write the read value to *val. On failure, return false (and val may
+ * or may not be written to).
+ */
+static bool vexpress_cfgctrl_read(arm_sysctl_state *s, unsigned int dcc,
+ unsigned int function, unsigned int site,
+ unsigned int position, unsigned int device,
+ uint32_t *val)
+{
+ /* We don't support anything other than DCC 0, board stack position 0
+ * or sites other than motherboard/daughterboard:
+ */
+ if (dcc != 0 || position != 0 ||
+ (site != SYS_CFG_SITE_MB && site != SYS_CFG_SITE_DB1)) {
+ goto cfgctrl_unimp;
+ }
+
+ switch (function) {
+ case SYS_CFG_VOLT:
+ if (site == SYS_CFG_SITE_DB1 && device < s->db_num_vsensors) {
+ *val = s->db_voltage[device];
+ return true;
+ }
+ if (site == SYS_CFG_SITE_MB && device == 0) {
+ /* There is only one motherboard voltage sensor:
+ * VIO : 3.3V : bus voltage between mother and daughterboard
+ */
+ *val = 3300000;
+ return true;
+ }
+ break;
+ case SYS_CFG_OSC:
+ if (site == SYS_CFG_SITE_MB && device < sizeof(s->mb_clock)) {
+ /* motherboard clock */
+ *val = s->mb_clock[device];
+ return true;
+ }
+ if (site == SYS_CFG_SITE_DB1 && device < s->db_num_clocks) {
+ /* daughterboard clock */
+ *val = s->db_clock[device];
+ return true;
+ }
+ break;
+ default:
+ break;
+ }
+
+cfgctrl_unimp:
+ qemu_log_mask(LOG_UNIMP,
+ "arm_sysctl: Unimplemented SYS_CFGCTRL read of function "
+ "0x%x DCC 0x%x site 0x%x position 0x%x device 0x%x\n",
+ function, dcc, site, position, device);
+ return false;
+}
+
+/**
+ * vexpress_cfgctrl_write:
+ * @s: arm_sysctl_state pointer
+ * @dcc, @function, @site, @position, @device: split out values from
+ * SYS_CFGCTRL register
+ * @val: data to write
+ *
+ * Handle a VExpress SYS_CFGCTRL register write. On success, return true.
+ * On failure, return false.
+ */
+static bool vexpress_cfgctrl_write(arm_sysctl_state *s, unsigned int dcc,
+ unsigned int function, unsigned int site,
+ unsigned int position, unsigned int device,
+ uint32_t val)
+{
+ /* We don't support anything other than DCC 0, board stack position 0
+ * or sites other than motherboard/daughterboard:
+ */
+ if (dcc != 0 || position != 0 ||
+ (site != SYS_CFG_SITE_MB && site != SYS_CFG_SITE_DB1)) {
+ goto cfgctrl_unimp;
+ }
+
+ switch (function) {
+ case SYS_CFG_OSC:
+ if (site == SYS_CFG_SITE_MB && device < sizeof(s->mb_clock)) {
+ /* motherboard clock */
+ s->mb_clock[device] = val;
+ return true;
+ }
+ if (site == SYS_CFG_SITE_DB1 && device < s->db_num_clocks) {
+ /* daughterboard clock */
+ s->db_clock[device] = val;
+ return true;
+ }
+ break;
+ case SYS_CFG_MUXFPGA:
+ if (site == SYS_CFG_SITE_MB && device == 0) {
+ /* Select whether video output comes from motherboard
+ * or daughterboard: log and ignore as QEMU doesn't
+ * support this.
+ */
+ qemu_log_mask(LOG_UNIMP, "arm_sysctl: selection of video output "
+ "not supported, ignoring\n");
+ return true;
+ }
+ break;
+ case SYS_CFG_SHUTDOWN:
+ if (site == SYS_CFG_SITE_MB && device == 0) {
+ qemu_system_shutdown_request();
+ return true;
+ }
+ break;
+ case SYS_CFG_REBOOT:
+ if (site == SYS_CFG_SITE_MB && device == 0) {
+ qemu_system_reset_request();
+ return true;
+ }
+ break;
+ case SYS_CFG_DVIMODE:
+ if (site == SYS_CFG_SITE_MB && device == 0) {
+ /* Selecting DVI mode is meaningless for QEMU: we will
+ * always display the output correctly according to the
+ * pixel height/width programmed into the CLCD controller.
+ */
+ return true;
+ }
+ default:
+ break;
+ }
+
+cfgctrl_unimp:
+ qemu_log_mask(LOG_UNIMP,
+ "arm_sysctl: Unimplemented SYS_CFGCTRL write of function "
+ "0x%x DCC 0x%x site 0x%x position 0x%x device 0x%x\n",
+ function, dcc, site, position, device);
+ return false;
+}
+
+static void arm_sysctl_write(void *opaque, hwaddr offset,
uint64_t val, unsigned size)
{
arm_sysctl_state *s = (arm_sysctl_state *)opaque;
switch (offset) {
case 0x08: /* LED */
s->leds = val;
+ break;
case 0x0c: /* OSC0 */
case 0x10: /* OSC1 */
case 0x14: /* OSC2 */
/* On VExpress this register is unimplemented and will RAZ/WI */
break;
}
+ break;
case 0x54: /* CLCDSER */
case 0x64: /* DMAPSR0 */
case 0x68: /* DMAPSR1 */
if (board_id(s) != BOARD_ID_VEXPRESS) {
goto bad_reg;
}
- s->sys_cfgctrl = val & ~(3 << 18);
- s->sys_cfgstat = 1; /* complete */
- switch (s->sys_cfgctrl) {
- case 0xc0800000: /* SYS_CFG_SHUTDOWN to motherboard */
- qemu_system_shutdown_request();
- break;
- case 0xc0900000: /* SYS_CFG_REBOOT to motherboard */
- qemu_system_reset_request();
- break;
- default:
- s->sys_cfgstat |= 2; /* error */
+ /* Undefined bits [19:18] are RAZ/WI, and writing to
+ * the start bit just triggers the action; it always reads
+ * as zero.
+ */
+ s->sys_cfgctrl = val & ~((3 << 18) | (1 << 31));
+ if (val & (1 << 31)) {
+ /* Start bit set -- actually do something */
+ unsigned int dcc = extract32(s->sys_cfgctrl, 26, 4);
+ unsigned int function = extract32(s->sys_cfgctrl, 20, 6);
+ unsigned int site = extract32(s->sys_cfgctrl, 16, 2);
+ unsigned int position = extract32(s->sys_cfgctrl, 12, 4);
+ unsigned int device = extract32(s->sys_cfgctrl, 0, 12);
+ s->sys_cfgstat = 1; /* complete */
+ if (s->sys_cfgctrl & (1 << 30)) {
+ if (!vexpress_cfgctrl_write(s, dcc, function, site, position,
+ device, s->sys_cfgdata)) {
+ s->sys_cfgstat |= 2; /* error */
+ }
+ } else {
+ uint32_t val;
+ if (!vexpress_cfgctrl_read(s, dcc, function, site, position,
+ device, &val)) {
+ s->sys_cfgstat |= 2; /* error */
+ } else {
+ s->sys_cfgdata = val;
+ }
+ }
}
+ s->sys_cfgctrl &= ~(1 << 31);
return;
case 0xa8: /* SYS_CFGSTAT */
if (board_id(s) != BOARD_ID_VEXPRESS) {
return;
default:
bad_reg:
- printf ("arm_sysctl_write: Bad register offset 0x%x\n", (int)offset);
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "arm_sysctl_write: Bad register offset 0x%x\n",
+ (int)offset);
return;
}
}
}
}
-static int arm_sysctl_init1(SysBusDevice *dev)
+static void arm_sysctl_init(Object *obj)
{
- arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, dev);
+ DeviceState *dev = DEVICE(obj);
+ SysBusDevice *sd = SYS_BUS_DEVICE(obj);
+ arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, sd);
memory_region_init_io(&s->iomem, &arm_sysctl_ops, s, "arm-sysctl", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
- qdev_init_gpio_in(&s->busdev.qdev, arm_sysctl_gpio_set, 2);
- qdev_init_gpio_out(&s->busdev.qdev, &s->pl110_mux_ctrl, 1);
- return 0;
+ sysbus_init_mmio(sd, &s->iomem);
+ qdev_init_gpio_in(dev, arm_sysctl_gpio_set, 2);
+ qdev_init_gpio_out(dev, &s->pl110_mux_ctrl, 1);
}
-/* Legacy helper function. */
-void arm_sysctl_init(uint32_t base, uint32_t sys_id, uint32_t proc_id)
+static void arm_sysctl_realize(DeviceState *d, Error **errp)
{
- DeviceState *dev;
+ arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, SYS_BUS_DEVICE(d));
+ s->db_clock = g_new0(uint32_t, s->db_num_clocks);
+}
- dev = qdev_create(NULL, "realview_sysctl");
- qdev_prop_set_uint32(dev, "sys_id", sys_id);
- qdev_init_nofail(dev);
- qdev_prop_set_uint32(dev, "proc_id", proc_id);
- sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
+static void arm_sysctl_finalize(Object *obj)
+{
+ SysBusDevice *dev = SYS_BUS_DEVICE(obj);
+ arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, dev);
+ g_free(s->db_voltage);
+ g_free(s->db_clock);
+ g_free(s->db_clock_reset);
}
static Property arm_sysctl_properties[] = {
DEFINE_PROP_UINT32("sys_id", arm_sysctl_state, sys_id, 0),
DEFINE_PROP_UINT32("proc_id", arm_sysctl_state, proc_id, 0),
+ /* Daughterboard power supply voltages (as reported via SYS_CFG) */
+ DEFINE_PROP_ARRAY("db-voltage", arm_sysctl_state, db_num_vsensors,
+ db_voltage, qdev_prop_uint32, uint32_t),
+ /* Daughterboard clock reset values (as reported via SYS_CFG) */
+ DEFINE_PROP_ARRAY("db-clock", arm_sysctl_state, db_num_clocks,
+ db_clock_reset, qdev_prop_uint32, uint32_t),
DEFINE_PROP_END_OF_LIST(),
};
static void arm_sysctl_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
- k->init = arm_sysctl_init1;
+ dc->realize = arm_sysctl_realize;
dc->reset = arm_sysctl_reset;
dc->vmsd = &vmstate_arm_sysctl;
dc->props = arm_sysctl_properties;
}
-static TypeInfo arm_sysctl_info = {
+static const TypeInfo arm_sysctl_info = {
.name = "realview_sysctl",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(arm_sysctl_state),
+ .instance_init = arm_sysctl_init,
+ .instance_finalize = arm_sysctl_finalize,
.class_init = arm_sysctl_class_init,
};
projects / qemu.git / blobdiff