1 files changed, 125 insertions, 0 deletions

diff --git a/include/asm-arm/arch-l7200/pmu.h b/include/asm-arm/arch-l7200/pmu.h
new file mode 100644
index 000000000000..57faea76d1b3
--- /dev/null
+++ b/include/asm-arm/arch-l7200/pmu.h
@@ -0,0 +1,125 @@
+/****************************************************************************/
+/*
+ *  linux/include/asm-arm/arch-l7200/pmu.h
+ *
+ *   Registers and  helper functions for the L7200 Link-Up Systems
+ *   Power Management Unit (PMU).
+ *
+ *   (C) Copyright 2000, S A McConnell  (samcconn@cotw.com)
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License. See the file COPYING in the main directory of this archive for
+ *  more details.
+ */
+
+/****************************************************************************/
+
+#define PMU_OFF   0x00050000  /* Offset from IO_START to the PMU registers. */
+
+/* IO_START and IO_BASE are defined in hardware.h */
+
+#define PMU_START (IO_START + PMU_OFF)  /* Physical addr. of the PMU reg. */
+#define PMU_BASE  (IO_BASE  + PMU_OFF)  /* Virtual addr. of the PMU reg. */
+
+
+/* Define the PMU registers for use by device drivers and the kernel. */
+
+typedef struct {
+     unsigned int CURRENT;  /* Current configuration register */
+     unsigned int NEXT;     /* Next configuration register */
+     unsigned int reserved;
+     unsigned int RUN;      /* Run configuration register */
+     unsigned int COMM;     /* Configuration command register */
+     unsigned int SDRAM;    /* SDRAM configuration bypass register */
+} pmu_interface;
+
+#define PMU ((volatile pmu_interface *)(PMU_BASE))
+
+
+/* Macro's for reading the common register fields. */
+
+#define GET_TRANSOP(reg)  ((reg >> 25) & 0x03) /* Bits 26-25 */
+#define GET_OSCEN(reg)    ((reg >> 16) & 0x01)
+#define GET_OSCMUX(reg)   ((reg >> 15) & 0x01)
+#define GET_PLLMUL(reg)   ((reg >>  9) & 0x3f) /* Bits 14-9 */
+#define GET_PLLEN(reg)    ((reg >>  8) & 0x01)
+#define GET_PLLMUX(reg)   ((reg >>  7) & 0x01)
+#define GET_BCLK_DIV(reg) ((reg >>  3) & 0x03) /* Bits 4-3 */
+#define GET_SDRB_SEL(reg) ((reg >>  2) & 0x01)
+#define GET_SDRF_SEL(reg) ((reg >>  1) & 0x01)
+#define GET_FASTBUS(reg)  (reg & 0x1)
+
+/* CFG_NEXT register */
+
+#define CFG_NEXT_CLOCKRECOVERY ((PMU->NEXT >> 18) & 0x7f)   /* Bits 24-18 */
+#define CFG_NEXT_INTRET        ((PMU->NEXT >> 17) & 0x01)
+#define CFG_NEXT_SDR_STOP      ((PMU->NEXT >>  6) & 0x01)
+#define CFG_NEXT_SYSCLKEN      ((PMU->NEXT >>  5) & 0x01)
+
+/* Useful field values that can be used to construct the
+ * CFG_NEXT and CFG_RUN registers.
+ */
+
+#define TRANSOP_NOP      0<<25  /* NOCHANGE_NOSTALL */
+#define NOCHANGE_STALL   1<<25
+#define CHANGE_NOSTALL   2<<25
+#define CHANGE_STALL     3<<25
+
+#define INTRET           1<<17
+#define OSCEN            1<<16
+#define OSCMUX           1<<15
+
+/* PLL frequencies */
+
+#define PLLMUL_0         0<<9         /*  3.6864 MHz */
+#define PLLMUL_1         1<<9         /*  ?????? MHz */
+#define PLLMUL_5         5<<9         /*  18.432 MHz */
+#define PLLMUL_10       10<<9         /*  36.864 MHz */
+#define PLLMUL_18       18<<9         /*  ?????? MHz */
+#define PLLMUL_20       20<<9         /*  73.728 MHz */
+#define PLLMUL_32       32<<9         /*  ?????? MHz */
+#define PLLMUL_35       35<<9         /* 129.024 MHz */
+#define PLLMUL_36       36<<9         /*  ?????? MHz */
+#define PLLMUL_39       39<<9         /*  ?????? MHz */
+#define PLLMUL_40       40<<9         /* 147.456 MHz */
+
+/* Clock recovery times */
+
+#define CRCLOCK_1        1<<18
+#define CRCLOCK_2        2<<18
+#define CRCLOCK_4        4<<18
+#define CRCLOCK_8        8<<18
+#define CRCLOCK_16      16<<18
+#define CRCLOCK_32      32<<18
+#define CRCLOCK_63      63<<18
+#define CRCLOCK_127    127<<18
+
+#define PLLEN            1<<8
+#define PLLMUX           1<<7
+#define SDR_STOP         1<<6
+#define SYSCLKEN         1<<5
+
+#define BCLK_DIV_4       2<<3
+#define BCLK_DIV_2       1<<3
+#define BCLK_DIV_1       0<<3
+
+#define SDRB_SEL         1<<2
+#define SDRF_SEL         1<<1
+#define FASTBUS          1<<0
+
+
+/* CFG_SDRAM */
+
+#define SDRREFFQ         1<<0  /* Only if SDRSTOPRQ is not set. */
+#define SDRREFACK        1<<1  /* Read-only */
+#define SDRSTOPRQ        1<<2  /* Only if SDRREFFQ is not set. */
+#define SDRSTOPACK       1<<3  /* Read-only */
+#define PICEN            1<<4  /* Enable Co-procesor */
+#define PICTEST          1<<5
+
+#define GET_SDRREFFQ    ((PMU->SDRAM >> 0) & 0x01)
+#define GET_SDRREFACK   ((PMU->SDRAM >> 1) & 0x01) /* Read-only */
+#define GET_SDRSTOPRQ   ((PMU->SDRAM >> 2) & 0x01)
+#define GET_SDRSTOPACK  ((PMU->SDRAM >> 3) & 0x01) /* Read-only */
+#define GET_PICEN       ((PMU->SDRAM >> 4) & 0x01)
+#define GET_PICTEST     ((PMU->SDRAM >> 5) & 0x01)