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original_kernel/arch/powerpc/boot/44x.h

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[POWERPC] Support for the Ebony 440GP reference board in arch/powerpc This adds platform support code for the Ebony (440GP) evaluation board. This includes both code in arch/powerpc/platforms/44x for board initialization, and zImage wrapper code to correctly tweak the flattened device tree based on information from the firmware. The zImage supports both IBM OpenBIOS (aka "treeboot") and old versions of uboot which don't support a flattened device tree. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08 12:10:01 +08:00
/*
* PowerPC 44x related functions
*
* Copyright 2007 David Gibson, IBM Corporation.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#ifndef _PPC_BOOT_44X_H_
#define _PPC_BOOT_44X_H_
void ibm44x_fixup_memsize(void);
[POWERPC] Derive ebc ranges property from EBC registers In the device tree for Ebony, the 'ranges' property in the node for the EBC bridge shows the mappings from the chip select / address lines actually used for the EBC peripherals into the address space of the OPB. At present, these mappings are hardcoded in ebony.dts for the mappings set up by the OpenBIOS firmware when it configures the EBC bridge. This replaces the hardcoded mappings with code in the zImage to read the EBC configuration registers and create an appropriate ranges property based on them. This should make the zImage and kernel more robust to changes in firmware configuration. In particular, some of the Ebony's DIP switches can change the effective address of the Flash and other peripherals in OPB space. With this patch, the kernel will be able to cope with at least some of the possible variations. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 12:52:59 +08:00
void ibm4xx_fixup_ebc_ranges(const char *ebc);
[POWERPC] Factor zImage's 44x reset code out of ebony.c The ebony_exit() function which resets the Ebony board should in fact be common to most if not all 44x boards. This moves the function out into 44x.c, renaming it, so it can be used by other 44x platforms. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 12:52:58 +08:00
void ibm44x_dbcr_reset(void);
[POWERPC] Support for the Ebony 440GP reference board in arch/powerpc This adds platform support code for the Ebony (440GP) evaluation board. This includes both code in arch/powerpc/platforms/44x for board initialization, and zImage wrapper code to correctly tweak the flattened device tree based on information from the firmware. The zImage supports both IBM OpenBIOS (aka "treeboot") and old versions of uboot which don't support a flattened device tree. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08 12:10:01 +08:00
void ebony_init(void *mac0, void *mac1);
#endif /* _PPC_BOOT_44X_H_ */