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authorJean-Christophe Dubois <jcd@tribudubois.net>2015-12-17 13:37:15 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-12-17 13:37:15 +0000
commitcb54d868c6a2292443645f25b295630f925474f8 (patch)
tree903913a43da3c7fa2c25c42d76587ea39044bee1 /hw
parentaaa9ec3b4ddaea53c6218ac90bf4ebc4b0bcff31 (diff)
downloadqemu-arm-cb54d868c6a2292443645f25b295630f925474f8.tar.gz
i.MX: Split the CCM class into an abstract base class and a concrete class
The IMX_CCM class is now the base abstract class that is used by EPIT and GPT timer implementation. IMX31_CCM class is the concrete class implementing CCM for i.MX31 SOC. For now the i.MX25 continues to use the i.MX31 CCM implementation. An i.MX25 specific CCM will be introduced in a later patch. We also rework initialization to stop using deprecated sysbus device init. Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: fd3c7f87b50f5ebc99ec91f01413db35017f116d.1449528242.git.jcd@tribudubois.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-rw-r--r--hw/arm/fsl-imx25.c6
-rw-r--r--hw/arm/fsl-imx31.c6
-rw-r--r--hw/misc/Makefile.objs1
-rw-r--r--hw/misc/imx31_ccm.c392
-rw-r--r--hw/misc/imx_ccm.c231
5 files changed, 421 insertions, 215 deletions
diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
index e1cadac997..9f302ed580 100644
--- a/hw/arm/fsl-imx25.c
+++ b/hw/arm/fsl-imx25.c
@@ -38,7 +38,7 @@ static void fsl_imx25_init(Object *obj)
object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC);
qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default());
- object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX_CCM);
+ object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM);
qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
@@ -150,7 +150,7 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
{ FSL_IMX25_GPT4_ADDR, FSL_IMX25_GPT4_IRQ }
};
- s->gpt[i].ccm = DEVICE(&s->ccm);
+ s->gpt[i].ccm = IMX_CCM(&s->ccm);
object_property_set_bool(OBJECT(&s->gpt[i]), true, "realized", &err);
if (err) {
@@ -173,7 +173,7 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
{ FSL_IMX25_EPIT2_ADDR, FSL_IMX25_EPIT2_IRQ }
};
- s->epit[i].ccm = DEVICE(&s->ccm);
+ s->epit[i].ccm = IMX_CCM(&s->ccm);
object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
if (err) {
diff --git a/hw/arm/fsl-imx31.c b/hw/arm/fsl-imx31.c
index 53d4473250..abdea0683a 100644
--- a/hw/arm/fsl-imx31.c
+++ b/hw/arm/fsl-imx31.c
@@ -35,7 +35,7 @@ static void fsl_imx31_init(Object *obj)
object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC);
qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default());
- object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX_CCM);
+ object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM);
qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
@@ -128,7 +128,7 @@ static void fsl_imx31_realize(DeviceState *dev, Error **errp)
serial_table[i].irq));
}
- s->gpt.ccm = DEVICE(&s->ccm);
+ s->gpt.ccm = IMX_CCM(&s->ccm);
object_property_set_bool(OBJECT(&s->gpt), true, "realized", &err);
if (err) {
@@ -150,7 +150,7 @@ static void fsl_imx31_realize(DeviceState *dev, Error **errp)
{ FSL_IMX31_EPIT2_ADDR, FSL_IMX31_EPIT2_IRQ },
};
- s->epit[i].ccm = DEVICE(&s->ccm);
+ s->epit[i].ccm = IMX_CCM(&s->ccm);
object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
if (err) {
diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
index aeb6b7da74..c77f3e3049 100644
--- a/hw/misc/Makefile.objs
+++ b/hw/misc/Makefile.objs
@@ -26,6 +26,7 @@ obj-$(CONFIG_NSERIES) += cbus.o
obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
obj-$(CONFIG_EXYNOS4) += exynos4210_pmu.o
obj-$(CONFIG_IMX) += imx_ccm.o
+obj-$(CONFIG_IMX) += imx31_ccm.o
obj-$(CONFIG_MILKYMIST) += milkymist-hpdmc.o
obj-$(CONFIG_MILKYMIST) += milkymist-pfpu.o
obj-$(CONFIG_MAINSTONE) += mst_fpga.o
diff --git a/hw/misc/imx31_ccm.c b/hw/misc/imx31_ccm.c
new file mode 100644
index 0000000000..b92d2e0392
--- /dev/null
+++ b/hw/misc/imx31_ccm.c
@@ -0,0 +1,392 @@
+/*
+ * IMX31 Clock Control Module
+ *
+ * Copyright (C) 2012 NICTA
+ * Updated by Jean-Christophe Dubois <jcd@tribudubois.net>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * To get the timer frequencies right, we need to emulate at least part of
+ * the i.MX31 CCM.
+ */
+
+#include "hw/misc/imx31_ccm.h"
+
+#define CKIH_FREQ 26000000 /* 26MHz crystal input */
+
+#ifndef DEBUG_IMX31_CCM
+#define DEBUG_IMX31_CCM 0
+#endif
+
+#define DPRINTF(fmt, args...) \
+ do { \
+ if (DEBUG_IMX31_CCM) { \
+ fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX31_CCM, \
+ __func__, ##args); \
+ } \
+ } while (0)
+
+static char const *imx31_ccm_reg_name(uint32_t reg)
+{
+ switch (reg) {
+ case 0:
+ return "CCMR";
+ case 1:
+ return "PDR0";
+ case 2:
+ return "PDR1";
+ case 3:
+ return "RCSR";
+ case 4:
+ return "MPCTL";
+ case 5:
+ return "UPCTL";
+ case 6:
+ return "SPCTL";
+ case 7:
+ return "COSR";
+ case 8:
+ return "CGR0";
+ case 9:
+ return "CGR1";
+ case 10:
+ return "CGR2";
+ case 11:
+ return "WIMR";
+ case 12:
+ return "LDC";
+ case 13:
+ return "DCVR0";
+ case 14:
+ return "DCVR1";
+ case 15:
+ return "DCVR2";
+ case 16:
+ return "DCVR3";
+ case 17:
+ return "LTR0";
+ case 18:
+ return "LTR1";
+ case 19:
+ return "LTR2";
+ case 20:
+ return "LTR3";
+ case 21:
+ return "LTBR0";
+ case 22:
+ return "LTBR1";
+ case 23:
+ return "PMCR0";
+ case 24:
+ return "PMCR1";
+ case 25:
+ return "PDR2";
+ default:
+ return "???";
+ }
+}
+
+static const VMStateDescription vmstate_imx31_ccm = {
+ .name = TYPE_IMX31_CCM,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(ccmr, IMX31CCMState),
+ VMSTATE_UINT32(pdr0, IMX31CCMState),
+ VMSTATE_UINT32(pdr1, IMX31CCMState),
+ VMSTATE_UINT32(mpctl, IMX31CCMState),
+ VMSTATE_UINT32(spctl, IMX31CCMState),
+ VMSTATE_UINT32_ARRAY(cgr, IMX31CCMState, 3),
+ VMSTATE_UINT32(pmcr0, IMX31CCMState),
+ VMSTATE_UINT32(pmcr1, IMX31CCMState),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static uint32_t imx31_ccm_get_pll_ref_clk(IMXCCMState *dev)
+{
+ uint32_t freq = 0;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ if ((s->ccmr & CCMR_PRCS) == 2) {
+ if (s->ccmr & CCMR_FPME) {
+ freq = CKIL_FREQ;
+ if (s->ccmr & CCMR_FPMF) {
+ freq *= 1024;
+ }
+ }
+ } else {
+ freq = CKIH_FREQ;
+ }
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_mpll_clk(IMXCCMState *dev)
+{
+ uint32_t freq;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ freq = imx_ccm_calc_pll(s->mpctl, imx31_ccm_get_pll_ref_clk(dev));
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_mcu_main_clk(IMXCCMState *dev)
+{
+ uint32_t freq;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ if ((s->ccmr & CCMR_MDS) || !(s->ccmr & CCMR_MPE)) {
+ freq = imx31_ccm_get_pll_ref_clk(dev);
+ } else {
+ freq = imx31_ccm_get_mpll_clk(dev);
+ }
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_mcu_clk(IMXCCMState *dev)
+{
+ uint32_t freq;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ freq = imx31_ccm_get_mcu_main_clk(dev) / (1 + EXTRACT(s->pdr0, MCU));
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_hsp_clk(IMXCCMState *dev)
+{
+ uint32_t freq;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ freq = imx31_ccm_get_mcu_main_clk(dev) / (1 + EXTRACT(s->pdr0, HSP));
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_hclk_clk(IMXCCMState *dev)
+{
+ uint32_t freq;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ freq = imx31_ccm_get_mcu_main_clk(dev) / (1 + EXTRACT(s->pdr0, MAX));
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_ipg_clk(IMXCCMState *dev)
+{
+ uint32_t freq;
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ freq = imx31_ccm_get_hclk_clk(dev) / (1 + EXTRACT(s->pdr0, IPG));
+
+ DPRINTF("freq = %d\n", freq);
+
+ return freq;
+}
+
+static uint32_t imx31_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
+{
+ uint32_t freq = 0;
+
+ switch (clock) {
+ case NOCLK:
+ break;
+ case CLK_MCU:
+ freq = imx31_ccm_get_mcu_clk(dev);
+ break;
+ case CLK_HSP:
+ freq = imx31_ccm_get_hsp_clk(dev);
+ break;
+ case CLK_IPG:
+ freq = imx31_ccm_get_ipg_clk(dev);
+ break;
+ case CLK_32k:
+ freq = CKIL_FREQ;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: unsupported clock %d\n",
+ TYPE_IMX31_CCM, __func__, clock);
+ break;
+ }
+
+ DPRINTF("Clock = %d) = %d\n", clock, freq);
+
+ return freq;
+}
+
+static void imx31_ccm_reset(DeviceState *dev)
+{
+ IMX31CCMState *s = IMX31_CCM(dev);
+
+ DPRINTF("()\n");
+
+ s->ccmr = 0x074b0b7d;
+ s->pdr0 = 0xff870b48;
+ s->pdr1 = 0x49fcfe7f;
+ s->mpctl = 0x04001800;
+ s->cgr[0] = s->cgr[1] = s->cgr[2] = 0xffffffff;
+ s->spctl = 0x04043001;
+ s->pmcr0 = 0x80209828;
+ s->pmcr1 = 0x00aa0000;
+}
+
+static uint64_t imx31_ccm_read(void *opaque, hwaddr offset, unsigned size)
+{
+ uint32 value = 0;
+ IMX31CCMState *s = (IMX31CCMState *)opaque;
+
+ switch (offset >> 2) {
+ case 0: /* CCMR */
+ value = s->ccmr;
+ break;
+ case 1:
+ value = s->pdr0;
+ break;
+ case 2:
+ value = s->pdr1;
+ break;
+ case 4:
+ value = s->mpctl;
+ break;
+ case 6:
+ value = s->spctl;
+ break;
+ case 8:
+ value = s->cgr[0];
+ break;
+ case 9:
+ value = s->cgr[1];
+ break;
+ case 10:
+ value = s->cgr[2];
+ break;
+ case 18: /* LTR1 */
+ value = 0x00004040;
+ break;
+ case 23:
+ value = s->pmcr0;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
+ HWADDR_PRIx "\n", TYPE_IMX31_CCM, __func__, offset);
+ break;
+ }
+
+ DPRINTF("reg[%s] => 0x%" PRIx32 "\n", imx31_ccm_reg_name(offset >> 2),
+ value);
+
+ return (uint64_t)value;
+}
+
+static void imx31_ccm_write(void *opaque, hwaddr offset, uint64_t value,
+ unsigned size)
+{
+ IMX31CCMState *s = (IMX31CCMState *)opaque;
+
+ DPRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx31_ccm_reg_name(offset >> 2),
+ (uint32_t)value);
+
+ switch (offset >> 2) {
+ case 0:
+ s->ccmr = CCMR_FPMF | (value & 0x3b6fdfff);
+ break;
+ case 1:
+ s->pdr0 = value & 0xff9f3fff;
+ break;
+ case 2:
+ s->pdr1 = value;
+ break;
+ case 4:
+ s->mpctl = value & 0xbfff3fff;
+ break;
+ case 6:
+ s->spctl = value & 0xbfff3fff;
+ break;
+ case 8:
+ s->cgr[0] = value;
+ break;
+ case 9:
+ s->cgr[1] = value;
+ break;
+ case 10:
+ s->cgr[2] = value;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
+ HWADDR_PRIx "\n", TYPE_IMX31_CCM, __func__, offset);
+ break;
+ }
+}
+
+static const struct MemoryRegionOps imx31_ccm_ops = {
+ .read = imx31_ccm_read,
+ .write = imx31_ccm_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ /*
+ * Our device would not work correctly if the guest was doing
+ * unaligned access. This might not be a limitation on the real
+ * device but in practice there is no reason for a guest to access
+ * this device unaligned.
+ */
+ .min_access_size = 4,
+ .max_access_size = 4,
+ .unaligned = false,
+ },
+
+};
+
+static void imx31_ccm_init(Object *obj)
+{
+ DeviceState *dev = DEVICE(obj);
+ SysBusDevice *sd = SYS_BUS_DEVICE(obj);
+ IMX31CCMState *s = IMX31_CCM(obj);
+
+ memory_region_init_io(&s->iomem, OBJECT(dev), &imx31_ccm_ops, s,
+ TYPE_IMX31_CCM, 0x1000);
+ sysbus_init_mmio(sd, &s->iomem);
+}
+
+static void imx31_ccm_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ IMXCCMClass *ccm = IMX_CCM_CLASS(klass);
+
+ dc->reset = imx31_ccm_reset;
+ dc->vmsd = &vmstate_imx31_ccm;
+ dc->desc = "i.MX31 Clock Control Module";
+
+ ccm->get_clock_frequency = imx31_ccm_get_clock_frequency;
+}
+
+static const TypeInfo imx31_ccm_info = {
+ .name = TYPE_IMX31_CCM,
+ .parent = TYPE_IMX_CCM,
+ .instance_size = sizeof(IMX31CCMState),
+ .instance_init = imx31_ccm_init,
+ .class_init = imx31_ccm_class_init,
+};
+
+static void imx31_ccm_register_types(void)
+{
+ type_register_static(&imx31_ccm_info);
+}
+
+type_init(imx31_ccm_register_types)
diff --git a/hw/misc/imx_ccm.c b/hw/misc/imx_ccm.c
index 1ac697a998..0c9740bd7a 100644
--- a/hw/misc/imx_ccm.c
+++ b/hw/misc/imx_ccm.c
@@ -7,15 +7,12 @@
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
- * To get the timer frequencies right, we need to emulate at least part of
- * the CCM.
+ * This is an abstract base class used to get a common interface to
+ * retrieve the CCM frequencies from the various i.MX SOC.
*/
#include "hw/misc/imx_ccm.h"
-#define CKIH_FREQ 26000000 /* 26MHz crystal input */
-#define CKIL_FREQ 32768 /* nominal 32khz clock */
-
#ifndef DEBUG_IMX_CCM
#define DEBUG_IMX_CCM 0
#endif
@@ -28,51 +25,27 @@
} \
} while (0)
-static int imx_ccm_post_load(void *opaque, int version_id);
-
-static const VMStateDescription vmstate_imx_ccm = {
- .name = TYPE_IMX_CCM,
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(ccmr, IMXCCMState),
- VMSTATE_UINT32(pdr0, IMXCCMState),
- VMSTATE_UINT32(pdr1, IMXCCMState),
- VMSTATE_UINT32(mpctl, IMXCCMState),
- VMSTATE_UINT32(spctl, IMXCCMState),
- VMSTATE_UINT32_ARRAY(cgr, IMXCCMState, 3),
- VMSTATE_UINT32(pmcr0, IMXCCMState),
- VMSTATE_UINT32(pmcr1, IMXCCMState),
- VMSTATE_UINT32(pll_refclk_freq, IMXCCMState),
- VMSTATE_END_OF_LIST()
- },
- .post_load = imx_ccm_post_load,
-};
-uint32_t imx_ccm_get_clock_frequency(DeviceState *dev, IMXClk clock)
+uint32_t imx_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
{
- IMXCCMState *s = IMX_CCM(dev);
+ uint32_t freq = 0;
+ IMXCCMClass *klass = IMX_GET_CLASS(dev);
- switch (clock) {
- case NOCLK:
- return 0;
- case CLK_MCU:
- return s->mcu_clk_freq;
- case CLK_HSP:
- return s->hsp_clk_freq;
- case CLK_IPG:
- return s->ipg_clk_freq;
- case CLK_32k:
- return CKIL_FREQ;
+ if (klass->get_clock_frequency) {
+ freq = klass->get_clock_frequency(dev, clock);
}
- return 0;
+
+ DPRINTF("(clock = %d) = %d\n", clock, freq);
+
+ return freq;
}
/*
* Calculate PLL output frequency
*/
-static uint32_t calc_pll(uint32_t pllreg, uint32_t base_freq)
+uint32_t imx_ccm_calc_pll(uint32_t pllreg, uint32_t base_freq)
{
+ int32_t freq;
int32_t mfn = MFN(pllreg); /* Numerator */
uint32_t mfi = MFI(pllreg); /* Integer part */
uint32_t mfd = 1 + MFD(pllreg); /* Denominator */
@@ -81,186 +54,26 @@ static uint32_t calc_pll(uint32_t pllreg, uint32_t base_freq)
if (mfi < 5) {
mfi = 5;
}
+
/* mfn is 10-bit signed twos-complement */
mfn <<= 32 - 10;
mfn >>= 32 - 10;
- return ((2 * (base_freq >> 10) * (mfi * mfd + mfn)) /
+ freq = ((2 * (base_freq >> 10) * (mfi * mfd + mfn)) /
(mfd * pd)) << 10;
-}
-
-static void update_clocks(IMXCCMState *s)
-{
- /*
- * If we ever emulate more clocks, this should switch to a data-driven
- * approach
- */
-
- if ((s->ccmr & CCMR_PRCS) == 2) {
- s->pll_refclk_freq = CKIL_FREQ * 1024;
- } else {
- s->pll_refclk_freq = CKIH_FREQ;
- }
-
- /* ipg_clk_arm aka MCU clock */
- if ((s->ccmr & CCMR_MDS) || !(s->ccmr & CCMR_MPE)) {
- s->mcu_clk_freq = s->pll_refclk_freq;
- } else {
- s->mcu_clk_freq = calc_pll(s->mpctl, s->pll_refclk_freq);
- }
-
- /* High-speed clock */
- s->hsp_clk_freq = s->mcu_clk_freq / (1 + EXTRACT(s->pdr0, HSP));
- s->ipg_clk_freq = s->hsp_clk_freq / (1 + EXTRACT(s->pdr0, IPG));
-
- DPRINTF("mcu %uMHz, HSP %uMHz, IPG %uHz\n",
- s->mcu_clk_freq / 1000000,
- s->hsp_clk_freq / 1000000,
- s->ipg_clk_freq);
-}
-
-static void imx_ccm_reset(DeviceState *dev)
-{
- IMXCCMState *s = IMX_CCM(dev);
-
- s->ccmr = 0x074b0b7d;
- s->pdr0 = 0xff870b48;
- s->pdr1 = 0x49fcfe7f;
- s->mpctl = PLL_PD(1) | PLL_MFD(0) | PLL_MFI(6) | PLL_MFN(0);
- s->cgr[0] = s->cgr[1] = s->cgr[2] = 0xffffffff;
- s->spctl = PLL_PD(1) | PLL_MFD(4) | PLL_MFI(0xc) | PLL_MFN(1);
- s->pmcr0 = 0x80209828;
-
- update_clocks(s);
-}
-
-static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- IMXCCMState *s = (IMXCCMState *)opaque;
- DPRINTF("(offset=0x%" HWADDR_PRIx ")\n", offset);
-
- switch (offset >> 2) {
- case 0: /* CCMR */
- DPRINTF(" ccmr = 0x%x\n", s->ccmr);
- return s->ccmr;
- case 1:
- DPRINTF(" pdr0 = 0x%x\n", s->pdr0);
- return s->pdr0;
- case 2:
- DPRINTF(" pdr1 = 0x%x\n", s->pdr1);
- return s->pdr1;
- case 4:
- DPRINTF(" mpctl = 0x%x\n", s->mpctl);
- return s->mpctl;
- case 6:
- DPRINTF(" spctl = 0x%x\n", s->spctl);
- return s->spctl;
- case 8:
- DPRINTF(" cgr0 = 0x%x\n", s->cgr[0]);
- return s->cgr[0];
- case 9:
- DPRINTF(" cgr1 = 0x%x\n", s->cgr[1]);
- return s->cgr[1];
- case 10:
- DPRINTF(" cgr2 = 0x%x\n", s->cgr[2]);
- return s->cgr[2];
- case 18: /* LTR1 */
- return 0x00004040;
- case 23:
- DPRINTF(" pcmr0 = 0x%x\n", s->pmcr0);
- return s->pmcr0;
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
- HWADDR_PRIx "\n", TYPE_IMX_CCM, __func__, offset);
- return 0;
- }
-}
-
-static void imx_ccm_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- IMXCCMState *s = (IMXCCMState *)opaque;
-
- DPRINTF("(offset=0x%" HWADDR_PRIx ", value = 0x%x)\n",
- offset, (unsigned int)value);
-
- switch (offset >> 2) {
- case 0:
- s->ccmr = CCMR_FPMF | (value & 0x3b6fdfff);
- break;
- case 1:
- s->pdr0 = value & 0xff9f3fff;
- break;
- case 2:
- s->pdr1 = value;
- break;
- case 4:
- s->mpctl = value & 0xbfff3fff;
- break;
- case 6:
- s->spctl = value & 0xbfff3fff;
- break;
- case 8:
- s->cgr[0] = value;
- return;
- case 9:
- s->cgr[1] = value;
- return;
- case 10:
- s->cgr[2] = value;
- return;
-
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
- HWADDR_PRIx "\n", TYPE_IMX_CCM, __func__, offset);
- return;
- }
- update_clocks(s);
-}
-
-static const struct MemoryRegionOps imx_ccm_ops = {
- .read = imx_ccm_read,
- .write = imx_ccm_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static int imx_ccm_init(SysBusDevice *dev)
-{
- IMXCCMState *s = IMX_CCM(dev);
-
- memory_region_init_io(&s->iomem, OBJECT(dev), &imx_ccm_ops, s,
- TYPE_IMX_CCM, 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
-
- return 0;
-}
-
-static int imx_ccm_post_load(void *opaque, int version_id)
-{
- IMXCCMState *s = (IMXCCMState *)opaque;
-
- update_clocks(s);
- return 0;
-}
-
-static void imx_ccm_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+ DPRINTF("(pllreg = 0x%08x, base_freq = %d) = %d\n", pllreg, base_freq,
+ freq);
- sbc->init = imx_ccm_init;
- dc->reset = imx_ccm_reset;
- dc->vmsd = &vmstate_imx_ccm;
- dc->desc = "i.MX Clock Control Module";
+ return freq;
}
static const TypeInfo imx_ccm_info = {
- .name = TYPE_IMX_CCM,
- .parent = TYPE_SYS_BUS_DEVICE,
+ .name = TYPE_IMX_CCM,
+ .parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(IMXCCMState),
- .class_init = imx_ccm_class_init,
+ .class_size = sizeof(IMXCCMClass),
+ .abstract = true,
};
static void imx_ccm_register_types(void)