1 files changed, 67 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/heathrow.h b/arch/powerpc/include/asm/heathrow.h
new file mode 100644
index 000000000000..93f54958a9d1
--- /dev/null
+++ b/arch/powerpc/include/asm/heathrow.h
@@ -0,0 +1,67 @@
+#ifndef _ASM_POWERPC_HEATHROW_H
+#define _ASM_POWERPC_HEATHROW_H
+#ifdef __KERNEL__
+/*
+ * heathrow.h: definitions for using the "Heathrow" I/O controller chip.
+ *
+ * Grabbed from Open Firmware definitions on a PowerBook G3 Series
+ *
+ * Copyright (C) 1997 Paul Mackerras.
+ */
+
+/* Front light color on Yikes/B&W G3. 32 bits */
+#define HEATHROW_FRONT_LIGHT            0x32 /* (set to 0 or 0xffffffff) */
+
+/* Brightness/contrast (gossamer iMac ?). 8 bits */
+#define HEATHROW_BRIGHTNESS_CNTL        0x32
+#define HEATHROW_CONTRAST_CNTL          0x33
+
+/* offset from ohare base for feature control register */
+#define HEATHROW_MBCR                   0x34    /* Media bay control */
+#define HEATHROW_FCR                    0x38    /* Feature control */
+#define HEATHROW_AUX_CNTL_REG           0x3c    /* Aux control */
+
+/*
+ * Bits in feature control register.
+ * Bits postfixed with a _N are in inverse logic
+ */
+#define HRW_SCC_TRANS_EN_N      0x00000001      /* Also controls modem power */
+#define HRW_BAY_POWER_N         0x00000002
+#define HRW_BAY_PCI_ENABLE      0x00000004
+#define HRW_BAY_IDE_ENABLE      0x00000008
+#define HRW_BAY_FLOPPY_ENABLE   0x00000010
+#define HRW_IDE0_ENABLE         0x00000020
+#define HRW_IDE0_RESET_N        0x00000040
+#define HRW_BAY_DEV_MASK        0x0000001c
+#define HRW_BAY_RESET_N         0x00000080
+#define HRW_IOBUS_ENABLE        0x00000100      /* Internal IDE ? */
+#define HRW_SCC_ENABLE          0x00000200
+#define HRW_MESH_ENABLE         0x00000400
+#define HRW_SWIM_ENABLE         0x00000800
+#define HRW_SOUND_POWER_N       0x00001000
+#define HRW_SOUND_CLK_ENABLE    0x00002000
+#define HRW_SCCA_IO             0x00004000
+#define HRW_SCCB_IO             0x00008000
+#define HRW_PORT_OR_DESK_VIA_N  0x00010000      /* This one is 0 on PowerBook */
+#define HRW_PWM_MON_ID_N        0x00020000      /* ??? (0) */
+#define HRW_HOOK_MB_CNT_N       0x00040000      /* ??? (0) */
+#define HRW_SWIM_CLONE_FLOPPY   0x00080000      /* ??? (0) */
+#define HRW_AUD_RUN22           0x00100000      /* ??? (1) */
+#define HRW_SCSI_LINK_MODE      0x00200000      /* Read ??? (1) */
+#define HRW_ARB_BYPASS          0x00400000      /* Disable internal PCI arbitrer */
+#define HRW_IDE1_RESET_N        0x00800000      /* Media bay */
+#define HRW_SLOW_SCC_PCLK       0x01000000      /* ??? (0) */
+#define HRW_RESET_SCC           0x02000000
+#define HRW_MFDC_CELL_ENABLE    0x04000000      /* ??? (0) */
+#define HRW_USE_MFDC            0x08000000      /* ??? (0) */
+#define HRW_BMAC_IO_ENABLE      0x60000000      /* two bits, not documented in OF */
+#define HRW_BMAC_RESET          0x80000000      /* not documented in OF */
+
+/* We OR those features at boot on desktop G3s */
+#define HRW_DEFAULTS            (HRW_SCCA_IO | HRW_SCCB_IO | HRW_SCC_ENABLE)
+
+/* Looks like Heathrow has some sort of GPIOs as well... */
+#define HRW_GPIO_MODEM_RESET    0x6d
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_HEATHROW_H */