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authorStefan Reinauer <reinauer@chromium.org>2012-11-30 12:34:04 -0800
committerRonald G. Minnich <rminnich@gmail.com>2012-11-30 23:59:58 +0100
commit8d7115560d469f901d7d8ccb242d0b437e7394aa (patch)
tree0f1b4bd63c48a233c49d5a9ca15f08a1675d1ff4 /src/device/oprom/yabel/device.h
parent4b6be985aae8bff84ae442e7be7669e93694fa1e (diff)
Rename devices -> device
to match src/include/device Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1960 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/device/oprom/yabel/device.h')
-rw-r--r--src/device/oprom/yabel/device.h185
1 files changed, 185 insertions, 0 deletions
diff --git a/src/device/oprom/yabel/device.h b/src/device/oprom/yabel/device.h
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+++ b/src/device/oprom/yabel/device.h
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+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net>
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#ifndef DEVICE_LIB_H
+#define DEVICE_LIB_H
+
+#include <types.h>
+#include <arch/byteorder.h>
+#include "compat/of.h"
+#include "debug.h"
+
+
+// a Expansion Header Struct as defined in Plug and Play BIOS Spec 1.0a Chapter 3.2
+typedef struct {
+ char signature[4]; // signature
+ u8 structure_revision;
+ u8 length; // in 16 byte blocks
+ u16 next_header_offset; // offset to next Expansion Header as 16bit little-endian value, as offset from the start of the Expansion ROM
+ u8 reserved;
+ u8 checksum; // the sum of all bytes of the Expansion Header must be 0
+ u32 device_id; // PnP Device ID as 32bit little-endian value
+ u16 p_manufacturer_string; //16bit little-endian offset from start of Expansion ROM
+ u16 p_product_string; //16bit little-endian offset from start of Expansion ROM
+ u8 device_base_type;
+ u8 device_sub_type;
+ u8 device_if_type;
+ u8 device_indicators;
+ // the following vectors are all 16bit little-endian offsets from start of Expansion ROM
+ u16 bcv; // Boot Connection Vector
+ u16 dv; // Disconnect Vector
+ u16 bev; // Bootstrap Entry Vector
+ u16 reserved_2;
+ u16 sriv; // Static Resource Information Vector
+} __attribute__ ((__packed__)) exp_header_struct_t;
+
+// a PCI Data Struct as defined in PCI 2.3 Spec Chapter 6.3.1.2
+typedef struct {
+ u8 signature[4]; // signature, the String "PCIR"
+ u16 vendor_id;
+ u16 device_id;
+ u16 reserved;
+ u16 pci_ds_length; // PCI Data Structure Length, 16bit little-endian value
+ u8 pci_ds_revision;
+ u8 class_code[3];
+ u16 img_length; // length of the Exp.ROM Image, 16bit little-endian value in 512 bytes
+ u16 img_revision;
+ u8 code_type;
+ u8 indicator;
+ u16 reserved_2;
+} __attribute__ ((__packed__)) pci_data_struct_t;
+
+typedef struct {
+ u8 bus;
+ u8 devfn;
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+ struct device* dev;
+#else
+ u64 puid;
+ phandle_t phandle;
+ ihandle_t ihandle;
+#endif
+ // store the address of the BAR that is used to simulate
+ // legacy VGA memory accesses
+ u64 vmem_addr;
+ u64 vmem_size;
+ // used to buffer I/O Accesses, that do not access the I/O Range of the device...
+ // 64k might be overkill, but we can buffer all I/O accesses...
+ u8 io_buffer[64 * 1024];
+ u16 pci_vendor_id;
+ u16 pci_device_id;
+ // translated address of the "PC-Compatible" Expansion ROM Image for this device
+ unsigned long img_addr;
+ u32 img_size; // size of the Expansion ROM Image (read from the PCI Data Structure)
+} biosemu_device_t;
+
+typedef struct {
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+ unsigned long info;
+#else
+ u8 info;
+#endif
+ u8 bus;
+ u8 devfn;
+ u8 cfg_space_offset;
+ u64 address;
+ u64 address_offset;
+ u64 size;
+} __attribute__ ((__packed__)) translate_address_t;
+
+// array to store address translations for this
+// device. Needed for faster address translation, so
+// not every I/O or Memory Access needs to call translate_address_dev
+// and access the device tree
+// 6 BARs, 1 Exp. ROM, 1 Cfg.Space, and 3 Legacy, plus 2 "special"
+// translations are supported... this should be enough for
+// most devices... for VGA it is enough anyways...
+extern translate_address_t translate_address_array[13];
+
+// index of last translate_address_array entry
+// set by get_dev_addr_info function
+extern u8 taa_last_entry;
+
+// add 1:1 mapped memory regions to translation table
+void biosemu_add_special_memory(u32 start, u32 size);
+
+/* the device we are working with... */
+extern biosemu_device_t bios_device;
+
+u8 biosemu_dev_init(struct device * device);
+// NOTE: for dev_check_exprom to work, biosemu_dev_init MUST be called first!
+u8 biosemu_dev_check_exprom(unsigned long rom_base_addr);
+
+u8 biosemu_dev_translate_address(int type, unsigned long * addr);
+
+/* endianness swap functions for 16 and 32 bit words
+ * copied from axon_pciconfig.c
+ */
+static inline void
+out32le(void *addr, u32 val)
+{
+#ifdef __i386
+ *((u32*) addr) = cpu_to_le32(val);
+#else
+ asm volatile ("stwbrx %0, 0, %1"::"r" (val), "r"(addr));
+#endif
+}
+
+static inline u32
+in32le(void *addr)
+{
+ u32 val;
+#ifdef __i386
+ val = cpu_to_le32(*((u32 *) addr));
+#else
+ asm volatile ("lwbrx %0, 0, %1":"=r" (val):"r"(addr));
+#endif
+ return val;
+}
+
+static inline void
+out16le(void *addr, u16 val)
+{
+#ifdef __i386
+ *((u16*) addr) = cpu_to_le16(val);
+#else
+ asm volatile ("sthbrx %0, 0, %1"::"r" (val), "r"(addr));
+#endif
+}
+
+static inline u16
+in16le(void *addr)
+{
+ u16 val;
+#ifdef __i386
+ val = cpu_to_le16(*((u16*) addr));
+#else
+ asm volatile ("lhbrx %0, 0, %1":"=r" (val):"r"(addr));
+#endif
+ return val;
+}
+
+/* debug function, dumps HID1 and HID4 to detect whether caches are on/off */
+static inline void
+dumpHID(void)
+{
+ u64 hid;
+ //HID1 = 1009
+ __asm__ __volatile__("mfspr %0, 1009":"=r"(hid));
+ printf("HID1: %016llx\n", hid);
+ //HID4 = 1012
+ __asm__ __volatile__("mfspr %0, 1012":"=r"(hid));
+ printf("HID4: %016llx\n", hid);
+}
+
+#endif