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>

1 files changed, 66 insertions, 0 deletions

diff --git a/include/hw/misc/imx31_ccm.h b/include/hw/misc/imx31_ccm.h
new file mode 100644
index 0000000000..fcae36d426
--- /dev/null
+++ b/include/hw/misc/imx31_ccm.h
@@ -0,0 +1,66 @@
+/*
+ * 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.
+ */
+
+#ifndef IMX31_CCM_H
+#define IMX31_CCM_H
+
+#include "hw/misc/imx_ccm.h"
+
+/* CCMR */
+#define CCMR_FPME    (1<<0)
+#define CCMR_MPE     (1<<3)
+#define CCMR_MDS     (1<<7)
+#define CCMR_FPMF    (1<<26)
+#define CCMR_PRCS    (3<<1)
+
+#define PMCR0_DFSUP1 (1<<31)
+
+/* PDR0 */
+#define PDR0_MCU_PODF_SHIFT (0)
+#define PDR0_MCU_PODF_MASK (0x7)
+#define PDR0_MAX_PODF_SHIFT (3)
+#define PDR0_MAX_PODF_MASK (0x7)
+#define PDR0_IPG_PODF_SHIFT (6)
+#define PDR0_IPG_PODF_MASK (0x3)
+#define PDR0_NFC_PODF_SHIFT (8)
+#define PDR0_NFC_PODF_MASK (0x7)
+#define PDR0_HSP_PODF_SHIFT (11)
+#define PDR0_HSP_PODF_MASK (0x7)
+#define PDR0_PER_PODF_SHIFT (16)
+#define PDR0_PER_PODF_MASK (0x1f)
+#define PDR0_CSI_PODF_SHIFT (23)
+#define PDR0_CSI_PODF_MASK (0x1ff)
+
+#define EXTRACT(value, name) (((value) >> PDR0_##name##_PODF_SHIFT) \
+                              & PDR0_##name##_PODF_MASK)
+#define INSERT(value, name) (((value) & PDR0_##name##_PODF_MASK) << \
+                             PDR0_##name##_PODF_SHIFT)
+
+#define TYPE_IMX31_CCM "imx31.ccm"
+#define IMX31_CCM(obj) OBJECT_CHECK(IMX31CCMState, (obj), TYPE_IMX31_CCM)
+
+typedef struct IMX31CCMState {
+    /* <private> */
+    IMXCCMState parent_obj;
+
+    /* <public> */
+    MemoryRegion iomem;
+
+    uint32_t ccmr;
+    uint32_t pdr0;
+    uint32_t pdr1;
+    uint32_t mpctl;
+    uint32_t spctl;
+    uint32_t cgr[3];
+    uint32_t pmcr0;
+    uint32_t pmcr1;
+} IMX31CCMState;
+
+#endif /* IMX31_CCM_H */