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authorGuan Xuetao <gxt@mprc.pku.edu.cn>2012-08-10 14:42:31 +0800
committerBlue Swirl <blauwirbel@gmail.com>2012-08-11 09:37:01 +0000
commitf716c1973ac97d3838212d16b94dff69becf3d67 (patch)
treefa6c5afe55bdf2a2af5f03358f0de1736ab9b0a9
parenta89d01c1925e88e7f6432b334e0b681899454486 (diff)
downloadqemu-arm-f716c1973ac97d3838212d16b94dff69becf3d67.tar.gz
unicore32-softmmu: Add puv3 pm support
This patch adds puv3 pm (power management) support, include pm device simulation for kernel booting. Thank Blue Swirl for pointing out the missing "break". v1->v2: Add initialization to ret in puv3_pm_read. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--hw/Makefile.objs1
-rw-r--r--hw/puv3.c1
-rw-r--r--hw/puv3_pm.c149
3 files changed, 151 insertions, 0 deletions
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 0e6ad8ce38..d84b2215d4 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -70,6 +70,7 @@ hw-obj-$(CONFIG_XILINX_AXI) += xilinx_axienet.o
hw-obj-$(CONFIG_PUV3) += puv3_intc.o
hw-obj-$(CONFIG_PUV3) += puv3_ost.o
hw-obj-$(CONFIG_PUV3) += puv3_gpio.o
+hw-obj-$(CONFIG_PUV3) += puv3_pm.o
# PCI watchdog devices
hw-obj-$(CONFIG_PCI) += wdt_i6300esb.o
diff --git a/hw/puv3.c b/hw/puv3.c
index 0354cf6c61..3a14b27487 100644
--- a/hw/puv3.c
+++ b/hw/puv3.c
@@ -48,6 +48,7 @@ static void puv3_soc_init(CPUUniCore32State *env)
}
/* Initialize minimal necessary devices for kernel booting */
+ sysbus_create_simple("puv3_pm", PUV3_PM_BASE, NULL);
sysbus_create_simple("puv3_ost", PUV3_OST_BASE, irqs[PUV3_IRQS_OST0]);
sysbus_create_varargs("puv3_gpio", PUV3_GPIO_BASE,
irqs[PUV3_IRQS_GPIOLOW0], irqs[PUV3_IRQS_GPIOLOW1],
diff --git a/hw/puv3_pm.c b/hw/puv3_pm.c
new file mode 100644
index 0000000000..621c96875c
--- /dev/null
+++ b/hw/puv3_pm.c
@@ -0,0 +1,149 @@
+/*
+ * Power Management device simulation in PKUnity SoC
+ *
+ * Copyright (C) 2010-2012 Guan Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation, or any later version.
+ * See the COPYING file in the top-level directory.
+ */
+#include "hw.h"
+#include "sysbus.h"
+
+#undef DEBUG_PUV3
+#include "puv3.h"
+
+typedef struct {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+
+ uint32_t reg_PMCR;
+ uint32_t reg_PCGR;
+ uint32_t reg_PLL_SYS_CFG;
+ uint32_t reg_PLL_DDR_CFG;
+ uint32_t reg_PLL_VGA_CFG;
+ uint32_t reg_DIVCFG;
+} PUV3PMState;
+
+static uint64_t puv3_pm_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
+{
+ PUV3PMState *s = opaque;
+ uint32_t ret = 0;
+
+ switch (offset) {
+ case 0x14:
+ ret = s->reg_PCGR;
+ break;
+ case 0x18:
+ ret = s->reg_PLL_SYS_CFG;
+ break;
+ case 0x1c:
+ ret = s->reg_PLL_DDR_CFG;
+ break;
+ case 0x20:
+ ret = s->reg_PLL_VGA_CFG;
+ break;
+ case 0x24:
+ ret = s->reg_DIVCFG;
+ break;
+ case 0x28: /* PLL SYS STATUS */
+ ret = 0x00002401;
+ break;
+ case 0x2c: /* PLL DDR STATUS */
+ ret = 0x00100c00;
+ break;
+ case 0x30: /* PLL VGA STATUS */
+ ret = 0x00003801;
+ break;
+ case 0x34: /* DIV STATUS */
+ ret = 0x22f52015;
+ break;
+ case 0x38: /* SW RESET */
+ ret = 0x0;
+ break;
+ case 0x44: /* PLL DFC DONE */
+ ret = 0x7;
+ break;
+ default:
+ DPRINTF("Bad offset 0x%x\n", offset);
+ }
+ DPRINTF("offset 0x%x, value 0x%x\n", offset, ret);
+
+ return ret;
+}
+
+static void puv3_pm_write(void *opaque, target_phys_addr_t offset,
+ uint64_t value, unsigned size)
+{
+ PUV3PMState *s = opaque;
+
+ switch (offset) {
+ case 0x0:
+ s->reg_PMCR = value;
+ break;
+ case 0x14:
+ s->reg_PCGR = value;
+ break;
+ case 0x18:
+ s->reg_PLL_SYS_CFG = value;
+ break;
+ case 0x1c:
+ s->reg_PLL_DDR_CFG = value;
+ break;
+ case 0x20:
+ s->reg_PLL_VGA_CFG = value;
+ break;
+ case 0x24:
+ case 0x38:
+ break;
+ default:
+ DPRINTF("Bad offset 0x%x\n", offset);
+ }
+ DPRINTF("offset 0x%x, value 0x%x\n", offset, value);
+}
+
+static const MemoryRegionOps puv3_pm_ops = {
+ .read = puv3_pm_read,
+ .write = puv3_pm_write,
+ .impl = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int puv3_pm_init(SysBusDevice *dev)
+{
+ PUV3PMState *s = FROM_SYSBUS(PUV3PMState, dev);
+
+ s->reg_PCGR = 0x0;
+
+ memory_region_init_io(&s->iomem, &puv3_pm_ops, s, "puv3_pm",
+ PUV3_REGS_OFFSET);
+ sysbus_init_mmio(dev, &s->iomem);
+
+ return 0;
+}
+
+static void puv3_pm_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
+
+ sdc->init = puv3_pm_init;
+}
+
+static const TypeInfo puv3_pm_info = {
+ .name = "puv3_pm",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(PUV3PMState),
+ .class_init = puv3_pm_class_init,
+};
+
+static void puv3_pm_register_type(void)
+{
+ type_register_static(&puv3_pm_info);
+}
+
+type_init(puv3_pm_register_type)