1 files changed, 82 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/cpm.h b/arch/powerpc/include/asm/cpm.h
index 24d79e3abd8e..0835eb977ba9 100644
--- a/arch/powerpc/include/asm/cpm.h
+++ b/arch/powerpc/include/asm/cpm.h
@@ -3,8 +3,47 @@
 
 #include <linux/compiler.h>
 #include <linux/types.h>
+#include <linux/errno.h>
 #include <linux/of.h>
 
+/*
+ * USB Controller pram common to QE and CPM.
+ */
+struct usb_ctlr {
+        u8      usb_usmod;
+        u8      usb_usadr;
+        u8      usb_uscom;
+        u8      res1[1];
+        __be16  usb_usep[4];
+        u8      res2[4];
+        __be16  usb_usber;
+        u8      res3[2];
+        __be16  usb_usbmr;
+        u8      res4[1];
+        u8      usb_usbs;
+        /* Fields down below are QE-only */
+        __be16  usb_ussft;
+        u8      res5[2];
+        __be16  usb_usfrn;
+        u8      res6[0x22];
+} __attribute__ ((packed));
+
+/*
+ * Function code bits, usually generic to devices.
+ */
+#ifdef CONFIG_CPM1
+#define CPMFCR_GBL      ((u_char)0x00)  /* Flag doesn't exist in CPM1 */
+#define CPMFCR_TC2      ((u_char)0x00)  /* Flag doesn't exist in CPM1 */
+#define CPMFCR_DTB      ((u_char)0x00)  /* Flag doesn't exist in CPM1 */
+#define CPMFCR_BDB      ((u_char)0x00)  /* Flag doesn't exist in CPM1 */
+#else
+#define CPMFCR_GBL      ((u_char)0x20)  /* Set memory snooping */
+#define CPMFCR_TC2      ((u_char)0x04)  /* Transfer code 2 value */
+#define CPMFCR_DTB      ((u_char)0x02)  /* Use local bus for data when set */
+#define CPMFCR_BDB      ((u_char)0x01)  /* Use local bus for BD when set */
+#endif
+#define CPMFCR_EB       ((u_char)0x10)  /* Set big endian byte order */
+
 /* Opcodes common to CPM1 and CPM2
 */
 #define CPM_CR_INIT_TRX         ((ushort)0x0000)
@@ -93,13 +132,56 @@ typedef struct cpm_buf_desc {
 #define BD_I2C_START            (0x0400)
 
 int cpm_muram_init(void);
+
+#if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE)
 unsigned long cpm_muram_alloc(unsigned long size, unsigned long align);
 int cpm_muram_free(unsigned long offset);
 unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size);
 void __iomem *cpm_muram_addr(unsigned long offset);
 unsigned long cpm_muram_offset(void __iomem *addr);
 dma_addr_t cpm_muram_dma(void __iomem *addr);
+#else
+static inline unsigned long cpm_muram_alloc(unsigned long size,
+                                            unsigned long align)
+{
+        return -ENOSYS;
+}
+
+static inline int cpm_muram_free(unsigned long offset)
+{
+        return -ENOSYS;
+}
+
+static inline unsigned long cpm_muram_alloc_fixed(unsigned long offset,
+                                                  unsigned long size)
+{
+        return -ENOSYS;
+}
+
+static inline void __iomem *cpm_muram_addr(unsigned long offset)
+{
+        return NULL;
+}
+
+static inline unsigned long cpm_muram_offset(void __iomem *addr)
+{
+        return -ENOSYS;
+}
+
+static inline dma_addr_t cpm_muram_dma(void __iomem *addr)
+{
+        return 0;
+}
+#endif /* defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE) */
+
+#ifdef CONFIG_CPM
 int cpm_command(u32 command, u8 opcode);
+#else
+static inline int cpm_command(u32 command, u8 opcode)
+{
+        return -ENOSYS;
+}
+#endif /* CONFIG_CPM */
 
 int cpm2_gpiochip_add32(struct device_node *np);