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-rw-r--r--hw/arm/allwinner-h3.c9
-rw-r--r--hw/misc/Makefile.objs1
-rw-r--r--hw/misc/allwinner-h3-ccu.c242
3 files changed, 251 insertions, 1 deletions
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index 7958f37685..1fff3c317b 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -36,6 +36,7 @@ const hwaddr allwinner_h3_memmap[] = {
[AW_H3_SRAM_A1] = 0x00000000,
[AW_H3_SRAM_A2] = 0x00044000,
[AW_H3_SRAM_C] = 0x00010000,
+ [AW_H3_CCU] = 0x01c20000,
[AW_H3_PIT] = 0x01c20c00,
[AW_H3_UART0] = 0x01c28000,
[AW_H3_UART1] = 0x01c28400,
@@ -77,7 +78,6 @@ struct AwH3Unimplemented {
{ "usb2-phy", 0x01c1c000, 4 * KiB },
{ "usb3-phy", 0x01c1d000, 4 * KiB },
{ "smc", 0x01c1e000, 4 * KiB },
- { "ccu", 0x01c20000, 1 * KiB },
{ "pio", 0x01c20800, 1 * KiB },
{ "owa", 0x01c21000, 1 * KiB },
{ "pwm", 0x01c21400, 1 * KiB },
@@ -172,6 +172,9 @@ static void allwinner_h3_init(Object *obj)
"clk0-freq", &error_abort);
object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer),
"clk1-freq", &error_abort);
+
+ sysbus_init_child_obj(obj, "ccu", &s->ccu, sizeof(s->ccu),
+ TYPE_AW_H3_CCU);
}
static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -277,6 +280,10 @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_C],
&s->sram_c);
+ /* Clock Control Unit */
+ qdev_init_nofail(DEVICE(&s->ccu));
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
+
/* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
index da993f45b7..5e635b74d5 100644
--- a/hw/misc/Makefile.objs
+++ b/hw/misc/Makefile.objs
@@ -28,6 +28,7 @@ common-obj-$(CONFIG_MACIO) += macio/
common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
+common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
common-obj-$(CONFIG_NSERIES) += cbus.o
common-obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
diff --git a/hw/misc/allwinner-h3-ccu.c b/hw/misc/allwinner-h3-ccu.c
new file mode 100644
index 0000000000..18d1074545
--- /dev/null
+++ b/hw/misc/allwinner-h3-ccu.c
@@ -0,0 +1,242 @@
+/*
+ * Allwinner H3 Clock Control Unit emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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 "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/sysbus.h"
+#include "migration/vmstate.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "hw/misc/allwinner-h3-ccu.h"
+
+/* CCU register offsets */
+enum {
+ REG_PLL_CPUX = 0x0000, /* PLL CPUX Control */
+ REG_PLL_AUDIO = 0x0008, /* PLL Audio Control */
+ REG_PLL_VIDEO = 0x0010, /* PLL Video Control */
+ REG_PLL_VE = 0x0018, /* PLL VE Control */
+ REG_PLL_DDR = 0x0020, /* PLL DDR Control */
+ REG_PLL_PERIPH0 = 0x0028, /* PLL Peripherals 0 Control */
+ REG_PLL_GPU = 0x0038, /* PLL GPU Control */
+ REG_PLL_PERIPH1 = 0x0044, /* PLL Peripherals 1 Control */
+ REG_PLL_DE = 0x0048, /* PLL Display Engine Control */
+ REG_CPUX_AXI = 0x0050, /* CPUX/AXI Configuration */
+ REG_APB1 = 0x0054, /* ARM Peripheral Bus 1 Config */
+ REG_APB2 = 0x0058, /* ARM Peripheral Bus 2 Config */
+ REG_DRAM_CFG = 0x00F4, /* DRAM Configuration */
+ REG_MBUS = 0x00FC, /* MBUS Reset */
+ REG_PLL_TIME0 = 0x0200, /* PLL Stable Time 0 */
+ REG_PLL_TIME1 = 0x0204, /* PLL Stable Time 1 */
+ REG_PLL_CPUX_BIAS = 0x0220, /* PLL CPUX Bias */
+ REG_PLL_AUDIO_BIAS = 0x0224, /* PLL Audio Bias */
+ REG_PLL_VIDEO_BIAS = 0x0228, /* PLL Video Bias */
+ REG_PLL_VE_BIAS = 0x022C, /* PLL VE Bias */
+ REG_PLL_DDR_BIAS = 0x0230, /* PLL DDR Bias */
+ REG_PLL_PERIPH0_BIAS = 0x0234, /* PLL Peripherals 0 Bias */
+ REG_PLL_GPU_BIAS = 0x023C, /* PLL GPU Bias */
+ REG_PLL_PERIPH1_BIAS = 0x0244, /* PLL Peripherals 1 Bias */
+ REG_PLL_DE_BIAS = 0x0248, /* PLL Display Engine Bias */
+ REG_PLL_CPUX_TUNING = 0x0250, /* PLL CPUX Tuning */
+ REG_PLL_DDR_TUNING = 0x0260, /* PLL DDR Tuning */
+};
+
+#define REG_INDEX(offset) (offset / sizeof(uint32_t))
+
+/* CCU register flags */
+enum {
+ REG_DRAM_CFG_UPDATE = (1 << 16),
+};
+
+enum {
+ REG_PLL_ENABLE = (1 << 31),
+ REG_PLL_LOCK = (1 << 28),
+};
+
+
+/* CCU register reset values */
+enum {
+ REG_PLL_CPUX_RST = 0x00001000,
+ REG_PLL_AUDIO_RST = 0x00035514,
+ REG_PLL_VIDEO_RST = 0x03006207,
+ REG_PLL_VE_RST = 0x03006207,
+ REG_PLL_DDR_RST = 0x00001000,
+ REG_PLL_PERIPH0_RST = 0x00041811,
+ REG_PLL_GPU_RST = 0x03006207,
+ REG_PLL_PERIPH1_RST = 0x00041811,
+ REG_PLL_DE_RST = 0x03006207,
+ REG_CPUX_AXI_RST = 0x00010000,
+ REG_APB1_RST = 0x00001010,
+ REG_APB2_RST = 0x01000000,
+ REG_DRAM_CFG_RST = 0x00000000,
+ REG_MBUS_RST = 0x80000000,
+ REG_PLL_TIME0_RST = 0x000000FF,
+ REG_PLL_TIME1_RST = 0x000000FF,
+ REG_PLL_CPUX_BIAS_RST = 0x08100200,
+ REG_PLL_AUDIO_BIAS_RST = 0x10100000,
+ REG_PLL_VIDEO_BIAS_RST = 0x10100000,
+ REG_PLL_VE_BIAS_RST = 0x10100000,
+ REG_PLL_DDR_BIAS_RST = 0x81104000,
+ REG_PLL_PERIPH0_BIAS_RST = 0x10100010,
+ REG_PLL_GPU_BIAS_RST = 0x10100000,
+ REG_PLL_PERIPH1_BIAS_RST = 0x10100010,
+ REG_PLL_DE_BIAS_RST = 0x10100000,
+ REG_PLL_CPUX_TUNING_RST = 0x0A101000,
+ REG_PLL_DDR_TUNING_RST = 0x14880000,
+};
+
+static uint64_t allwinner_h3_ccu_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ const AwH3ClockCtlState *s = AW_H3_CCU(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ switch (offset) {
+ case 0x308 ... AW_H3_CCU_IOSIZE:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return 0;
+ }
+
+ return s->regs[idx];
+}
+
+static void allwinner_h3_ccu_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ AwH3ClockCtlState *s = AW_H3_CCU(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ switch (offset) {
+ case REG_DRAM_CFG: /* DRAM Configuration */
+ val &= ~REG_DRAM_CFG_UPDATE;
+ break;
+ case REG_PLL_CPUX: /* PLL CPUX Control */
+ case REG_PLL_AUDIO: /* PLL Audio Control */
+ case REG_PLL_VIDEO: /* PLL Video Control */
+ case REG_PLL_VE: /* PLL VE Control */
+ case REG_PLL_DDR: /* PLL DDR Control */
+ case REG_PLL_PERIPH0: /* PLL Peripherals 0 Control */
+ case REG_PLL_GPU: /* PLL GPU Control */
+ case REG_PLL_PERIPH1: /* PLL Peripherals 1 Control */
+ case REG_PLL_DE: /* PLL Display Engine Control */
+ if (val & REG_PLL_ENABLE) {
+ val |= REG_PLL_LOCK;
+ }
+ break;
+ case 0x308 ... AW_H3_CCU_IOSIZE:
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP, "%s: unimplemented write offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ break;
+ }
+
+ s->regs[idx] = (uint32_t) val;
+}
+
+static const MemoryRegionOps allwinner_h3_ccu_ops = {
+ .read = allwinner_h3_ccu_read,
+ .write = allwinner_h3_ccu_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+ .impl.min_access_size = 4,
+};
+
+static void allwinner_h3_ccu_reset(DeviceState *dev)
+{
+ AwH3ClockCtlState *s = AW_H3_CCU(dev);
+
+ /* Set default values for registers */
+ s->regs[REG_INDEX(REG_PLL_CPUX)] = REG_PLL_CPUX_RST;
+ s->regs[REG_INDEX(REG_PLL_AUDIO)] = REG_PLL_AUDIO_RST;
+ s->regs[REG_INDEX(REG_PLL_VIDEO)] = REG_PLL_VIDEO_RST;
+ s->regs[REG_INDEX(REG_PLL_VE)] = REG_PLL_VE_RST;
+ s->regs[REG_INDEX(REG_PLL_DDR)] = REG_PLL_DDR_RST;
+ s->regs[REG_INDEX(REG_PLL_PERIPH0)] = REG_PLL_PERIPH0_RST;
+ s->regs[REG_INDEX(REG_PLL_GPU)] = REG_PLL_GPU_RST;
+ s->regs[REG_INDEX(REG_PLL_PERIPH1)] = REG_PLL_PERIPH1_RST;
+ s->regs[REG_INDEX(REG_PLL_DE)] = REG_PLL_DE_RST;
+ s->regs[REG_INDEX(REG_CPUX_AXI)] = REG_CPUX_AXI_RST;
+ s->regs[REG_INDEX(REG_APB1)] = REG_APB1_RST;
+ s->regs[REG_INDEX(REG_APB2)] = REG_APB2_RST;
+ s->regs[REG_INDEX(REG_DRAM_CFG)] = REG_DRAM_CFG_RST;
+ s->regs[REG_INDEX(REG_MBUS)] = REG_MBUS_RST;
+ s->regs[REG_INDEX(REG_PLL_TIME0)] = REG_PLL_TIME0_RST;
+ s->regs[REG_INDEX(REG_PLL_TIME1)] = REG_PLL_TIME1_RST;
+ s->regs[REG_INDEX(REG_PLL_CPUX_BIAS)] = REG_PLL_CPUX_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_AUDIO_BIAS)] = REG_PLL_AUDIO_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_VIDEO_BIAS)] = REG_PLL_VIDEO_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_VE_BIAS)] = REG_PLL_VE_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_DDR_BIAS)] = REG_PLL_DDR_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_PERIPH0_BIAS)] = REG_PLL_PERIPH0_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_GPU_BIAS)] = REG_PLL_GPU_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_PERIPH1_BIAS)] = REG_PLL_PERIPH1_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_DE_BIAS)] = REG_PLL_DE_BIAS_RST;
+ s->regs[REG_INDEX(REG_PLL_CPUX_TUNING)] = REG_PLL_CPUX_TUNING_RST;
+ s->regs[REG_INDEX(REG_PLL_DDR_TUNING)] = REG_PLL_DDR_TUNING_RST;
+}
+
+static void allwinner_h3_ccu_init(Object *obj)
+{
+ SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+ AwH3ClockCtlState *s = AW_H3_CCU(obj);
+
+ /* Memory mapping */
+ memory_region_init_io(&s->iomem, OBJECT(s), &allwinner_h3_ccu_ops, s,
+ TYPE_AW_H3_CCU, AW_H3_CCU_IOSIZE);
+ sysbus_init_mmio(sbd, &s->iomem);
+}
+
+static const VMStateDescription allwinner_h3_ccu_vmstate = {
+ .name = "allwinner-h3-ccu",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(regs, AwH3ClockCtlState, AW_H3_CCU_REGS_NUM),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void allwinner_h3_ccu_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->reset = allwinner_h3_ccu_reset;
+ dc->vmsd = &allwinner_h3_ccu_vmstate;
+}
+
+static const TypeInfo allwinner_h3_ccu_info = {
+ .name = TYPE_AW_H3_CCU,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_init = allwinner_h3_ccu_init,
+ .instance_size = sizeof(AwH3ClockCtlState),
+ .class_init = allwinner_h3_ccu_class_init,
+};
+
+static void allwinner_h3_ccu_register(void)
+{
+ type_register_static(&allwinner_h3_ccu_info);
+}
+
+type_init(allwinner_h3_ccu_register)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 00:43:45 +0000