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powerpc/64: Remove maple platform
The maple platform was added in 2004 [1], to support the "Maple" 970FX evaluation board. It was later used for IBM JS20/JS21 machines, as well as the Bimini machine, aka "Yellow Dog Powerstation". Sadly all those machines have passed into memory, and there's been no evidence for years that anyone is still using any of them. Remove the platform and related code. It can always be reinstated if there's interest. Note that this has no impact on support for 970FX based Power Macs. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux-fullhistory.git/commit/?id=f0d068d65c5e555ffcfbc189de32598f6f00770c Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://patch.msgid.link/20241013102957.548291-1-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman
@@ -93,8 +93,8 @@ given platform based on the content of the device-tree. Thus, you
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should:
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a) add your platform support as a _boolean_ option in
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arch/powerpc/Kconfig, following the example of PPC_PSERIES,
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PPC_PMAC and PPC_MAPLE. The latter is probably a good
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arch/powerpc/Kconfig, following the example of PPC_PSERIES
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and PPC_PMAC. The latter is probably a good
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example of a board support to start from.
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b) create your main platform file as
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@@ -223,12 +223,6 @@ config PPC_EARLY_DEBUG_RTAS_CONSOLE
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help
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Select this to enable early debugging via the RTAS console.
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config PPC_EARLY_DEBUG_MAPLE
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bool "Maple real mode"
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depends on PPC_MAPLE
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help
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Select this to enable early debugging for Maple.
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config PPC_EARLY_DEBUG_PAS_REALMODE
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bool "PA Semi real mode"
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depends on PPC_PASEMI
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1
arch/powerpc/boot/.gitignore
vendored
1
arch/powerpc/boot/.gitignore
vendored
@@ -30,7 +30,6 @@ zImage.coff
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zImage.epapr
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zImage.holly
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zImage.*lds
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zImage.maple
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zImage.miboot
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zImage.pmac
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zImage.pseries
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@@ -276,7 +276,6 @@ quiet_cmd_wrap = WRAP $@
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image-$(CONFIG_PPC_PSERIES) += zImage.pseries
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image-$(CONFIG_PPC_POWERNV) += zImage.pseries
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image-$(CONFIG_PPC_MAPLE) += zImage.maple
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image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
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image-$(CONFIG_PPC_PS3) += dtbImage.ps3
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image-$(CONFIG_PPC_CHRP) += zImage.chrp
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@@ -444,7 +443,7 @@ $(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
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clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
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zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
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zImage.miboot zImage.pmac zImage.pseries \
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zImage.maple simpleImage.* otheros.bld
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simpleImage.* otheros.bld
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# clean up files cached by wrapper
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clean-kernel-base := vmlinux.strip vmlinux.bin
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@@ -271,11 +271,6 @@ pseries)
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fi
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make_space=n
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;;
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maple)
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platformo="$object/of.o $object/epapr.o"
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link_address='0x400000'
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make_space=n
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;;
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pmac|chrp)
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platformo="$object/of.o $object/epapr.o"
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make_space=n
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@@ -517,7 +512,7 @@ fi
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# post-processing needed for some platforms
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case "$platform" in
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pseries|chrp|maple)
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pseries|chrp)
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$objbin/addnote "$ofile"
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;;
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coff)
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@@ -1,111 +0,0 @@
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CONFIG_PPC64=y
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CONFIG_SMP=y
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CONFIG_NR_CPUS=4
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CONFIG_SYSVIPC=y
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CONFIG_POSIX_MQUEUE=y
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CONFIG_NO_HZ=y
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CONFIG_HIGH_RES_TIMERS=y
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CONFIG_IKCONFIG=y
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CONFIG_IKCONFIG_PROC=y
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# CONFIG_COMPAT_BRK is not set
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CONFIG_PROFILING=y
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CONFIG_KPROBES=y
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CONFIG_MODULES=y
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CONFIG_MODULE_UNLOAD=y
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CONFIG_MODVERSIONS=y
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CONFIG_MODULE_SRCVERSION_ALL=y
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# CONFIG_BLK_DEV_BSG is not set
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CONFIG_PARTITION_ADVANCED=y
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CONFIG_MAC_PARTITION=y
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# CONFIG_PPC_POWERNV is not set
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# CONFIG_PPC_PSERIES is not set
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# CONFIG_PPC_PMAC is not set
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CONFIG_PPC_MAPLE=y
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CONFIG_UDBG_RTAS_CONSOLE=y
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CONFIG_GEN_RTC=y
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CONFIG_KEXEC=y
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CONFIG_IRQ_ALL_CPUS=y
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CONFIG_PPC_4K_PAGES=y
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CONFIG_PCI_MSI=y
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CONFIG_NET=y
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CONFIG_PACKET=y
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CONFIG_UNIX=y
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CONFIG_XFRM_USER=m
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CONFIG_INET=y
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CONFIG_IP_MULTICAST=y
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CONFIG_IP_PNP=y
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CONFIG_IP_PNP_DHCP=y
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# CONFIG_IPV6 is not set
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CONFIG_BLK_DEV_RAM=y
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CONFIG_BLK_DEV_RAM_SIZE=8192
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# CONFIG_SCSI_PROC_FS is not set
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CONFIG_BLK_DEV_SD=y
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CONFIG_BLK_DEV_SR=y
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CONFIG_CHR_DEV_SG=y
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CONFIG_SCSI_IPR=y
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CONFIG_ATA=y
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CONFIG_PATA_AMD=y
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CONFIG_ATA_GENERIC=y
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CONFIG_NETDEVICES=y
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CONFIG_AMD8111_ETH=y
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CONFIG_TIGON3=y
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CONFIG_E1000=y
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CONFIG_USB_PEGASUS=y
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# CONFIG_INPUT_KEYBOARD is not set
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# CONFIG_INPUT_MOUSE is not set
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# CONFIG_SERIO is not set
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CONFIG_SERIAL_8250=y
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CONFIG_SERIAL_8250_CONSOLE=y
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CONFIG_HVC_RTAS=y
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# CONFIG_HW_RANDOM is not set
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CONFIG_I2C=y
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CONFIG_I2C_CHARDEV=y
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CONFIG_I2C_AMD8111=y
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# CONFIG_VGA_CONSOLE is not set
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CONFIG_HID_GYRATION=y
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CONFIG_HID_PANTHERLORD=y
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CONFIG_HID_PETALYNX=y
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CONFIG_HID_SAMSUNG=y
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CONFIG_HID_SUNPLUS=y
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CONFIG_USB=y
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CONFIG_USB_MON=y
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CONFIG_USB_EHCI_HCD=y
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CONFIG_USB_EHCI_ROOT_HUB_TT=y
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# CONFIG_USB_EHCI_HCD_PPC_OF is not set
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CONFIG_USB_OHCI_HCD=y
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CONFIG_USB_UHCI_HCD=y
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CONFIG_USB_SERIAL=y
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CONFIG_USB_SERIAL_GENERIC=y
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CONFIG_USB_SERIAL_CYPRESS_M8=m
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CONFIG_USB_SERIAL_GARMIN=m
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CONFIG_USB_SERIAL_IPW=m
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CONFIG_USB_SERIAL_KEYSPAN=y
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CONFIG_USB_SERIAL_TI=m
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CONFIG_EXT2_FS=y
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CONFIG_EXT4_FS=y
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CONFIG_FS_DAX=y
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CONFIG_MSDOS_FS=y
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CONFIG_VFAT_FS=y
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CONFIG_PROC_KCORE=y
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CONFIG_TMPFS=y
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CONFIG_HUGETLBFS=y
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CONFIG_CRAMFS=y
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CONFIG_NFS_FS=y
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CONFIG_NFS_V3_ACL=y
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CONFIG_NFS_V4=y
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CONFIG_ROOT_NFS=y
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CONFIG_NLS_DEFAULT="utf-8"
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CONFIG_NLS_UTF8=y
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CONFIG_CRC_CCITT=y
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CONFIG_CRC_T10DIF=y
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CONFIG_MAGIC_SYSRQ=y
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CONFIG_DEBUG_KERNEL=y
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CONFIG_DEBUG_STACK_USAGE=y
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CONFIG_DEBUG_STACKOVERFLOW=y
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CONFIG_XMON=y
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CONFIG_XMON_DEFAULT=y
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CONFIG_BOOTX_TEXT=y
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CONFIG_CRYPTO_ECB=m
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CONFIG_CRYPTO_PCBC=m
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# CONFIG_CRYPTO_HW is not set
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CONFIG_PRINTK_TIME=y
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@@ -44,7 +44,6 @@ CONFIG_PPC_SMLPAR=y
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CONFIG_IBMEBUS=y
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CONFIG_PAPR_SCM=m
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CONFIG_PPC_SVM=y
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CONFIG_PPC_MAPLE=y
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CONFIG_PPC_PASEMI=y
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CONFIG_PPC_PASEMI_IOMMU=y
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CONFIG_PPC_PS3=y
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@@ -38,7 +38,6 @@ void __init udbg_early_init(void);
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void __init udbg_init_debug_lpar(void);
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void __init udbg_init_debug_lpar_hvsi(void);
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void __init udbg_init_pmac_realmode(void);
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void __init udbg_init_maple_realmode(void);
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void __init udbg_init_pas_realmode(void);
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void __init udbg_init_rtas_panel(void);
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void __init udbg_init_rtas_console(void);
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@@ -74,7 +74,7 @@ _GLOBAL(rmci_off)
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blr
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#endif /* CONFIG_PPC_EARLY_DEBUG_BOOTX */
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#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
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#ifdef CONFIG_PPC_PMAC
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/*
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* Do an IO access in real mode
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@@ -137,7 +137,7 @@ _GLOBAL(real_writeb)
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sync
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isync
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blr
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#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
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#endif // CONFIG_PPC_PMAC
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#ifdef CONFIG_PPC_PASEMI
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@@ -174,7 +174,7 @@ _GLOBAL(real_205_writeb)
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#endif /* CONFIG_PPC_PASEMI */
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#if defined(CONFIG_CPU_FREQ_PMAC64) || defined(CONFIG_CPU_FREQ_MAPLE)
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#ifdef CONFIG_CPU_FREQ_PMAC64
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/*
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* SCOM access functions for 970 (FX only for now)
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*
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@@ -243,7 +243,7 @@ _GLOBAL(scom970_write)
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/* restore interrupts */
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mtmsrd r5,1
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blr
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#endif /* CONFIG_CPU_FREQ_PMAC64 || CONFIG_CPU_FREQ_MAPLE */
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#endif // CONFIG_CPU_FREQ_PMAC64
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/* kexec_wait(phys_cpu)
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*
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@@ -2792,90 +2792,6 @@ static void __init flatten_device_tree(void)
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dt_struct_start, dt_struct_end);
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}
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#ifdef CONFIG_PPC_MAPLE
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/* PIBS Version 1.05.0000 04/26/2005 has an incorrect /ht/isa/ranges property.
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* The values are bad, and it doesn't even have the right number of cells. */
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static void __init fixup_device_tree_maple(void)
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{
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phandle isa;
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u32 rloc = 0x01002000; /* IO space; PCI device = 4 */
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u32 isa_ranges[6];
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char *name;
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name = "/ht@0/isa@4";
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isa = call_prom("finddevice", 1, 1, ADDR(name));
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if (!PHANDLE_VALID(isa)) {
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name = "/ht@0/isa@6";
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isa = call_prom("finddevice", 1, 1, ADDR(name));
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rloc = 0x01003000; /* IO space; PCI device = 6 */
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}
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if (!PHANDLE_VALID(isa))
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return;
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if (prom_getproplen(isa, "ranges") != 12)
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return;
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if (prom_getprop(isa, "ranges", isa_ranges, sizeof(isa_ranges))
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== PROM_ERROR)
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return;
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if (isa_ranges[0] != 0x1 ||
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isa_ranges[1] != 0xf4000000 ||
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isa_ranges[2] != 0x00010000)
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return;
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prom_printf("Fixing up bogus ISA range on Maple/Apache...\n");
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isa_ranges[0] = 0x1;
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isa_ranges[1] = 0x0;
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isa_ranges[2] = rloc;
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isa_ranges[3] = 0x0;
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isa_ranges[4] = 0x0;
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isa_ranges[5] = 0x00010000;
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prom_setprop(isa, name, "ranges",
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isa_ranges, sizeof(isa_ranges));
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}
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#define CPC925_MC_START 0xf8000000
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#define CPC925_MC_LENGTH 0x1000000
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/* The values for memory-controller don't have right number of cells */
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static void __init fixup_device_tree_maple_memory_controller(void)
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{
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phandle mc;
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u32 mc_reg[4];
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char *name = "/hostbridge@f8000000";
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u32 ac, sc;
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mc = call_prom("finddevice", 1, 1, ADDR(name));
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if (!PHANDLE_VALID(mc))
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return;
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if (prom_getproplen(mc, "reg") != 8)
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return;
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prom_getprop(prom.root, "#address-cells", &ac, sizeof(ac));
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prom_getprop(prom.root, "#size-cells", &sc, sizeof(sc));
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if ((ac != 2) || (sc != 2))
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return;
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if (prom_getprop(mc, "reg", mc_reg, sizeof(mc_reg)) == PROM_ERROR)
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return;
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if (mc_reg[0] != CPC925_MC_START || mc_reg[1] != CPC925_MC_LENGTH)
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return;
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prom_printf("Fixing up bogus hostbridge on Maple...\n");
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mc_reg[0] = 0x0;
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mc_reg[1] = CPC925_MC_START;
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mc_reg[2] = 0x0;
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mc_reg[3] = CPC925_MC_LENGTH;
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prom_setprop(mc, name, "reg", mc_reg, sizeof(mc_reg));
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}
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#else
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#define fixup_device_tree_maple()
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#define fixup_device_tree_maple_memory_controller()
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#endif
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#ifdef CONFIG_PPC_CHRP
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/*
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* Pegasos and BriQ lacks the "ranges" property in the isa node
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@@ -3193,8 +3109,6 @@ static inline void fixup_device_tree_pasemi(void) { }
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static void __init fixup_device_tree(void)
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{
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fixup_device_tree_maple();
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fixup_device_tree_maple_memory_controller();
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fixup_device_tree_chrp();
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fixup_device_tree_pmac();
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fixup_device_tree_efika();
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@@ -39,9 +39,6 @@ void __init udbg_early_init(void)
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#elif defined(CONFIG_PPC_EARLY_DEBUG_RTAS_CONSOLE)
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/* RTAS console debug */
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udbg_init_rtas_console();
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#elif defined(CONFIG_PPC_EARLY_DEBUG_MAPLE)
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/* Maple real mode debug */
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udbg_init_maple_realmode();
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#elif defined(CONFIG_PPC_EARLY_DEBUG_PAS_REALMODE)
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udbg_init_pas_realmode();
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#elif defined(CONFIG_PPC_EARLY_DEBUG_BOOTX)
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|
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@@ -205,29 +205,6 @@ void __init udbg_uart_init_mmio(void __iomem *addr, unsigned int stride)
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udbg_use_uart();
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}
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#ifdef CONFIG_PPC_MAPLE
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#define UDBG_UART_MAPLE_ADDR ((void __iomem *)0xf40003f8)
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static u8 udbg_uart_in_maple(unsigned int reg)
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{
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return real_readb(UDBG_UART_MAPLE_ADDR + reg);
|
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}
|
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|
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static void udbg_uart_out_maple(unsigned int reg, u8 val)
|
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{
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real_writeb(val, UDBG_UART_MAPLE_ADDR + reg);
|
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}
|
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|
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void __init udbg_init_maple_realmode(void)
|
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{
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udbg_uart_in = udbg_uart_in_maple;
|
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udbg_uart_out = udbg_uart_out_maple;
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udbg_use_uart();
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}
|
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|
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#endif /* CONFIG_PPC_MAPLE */
|
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#ifdef CONFIG_PPC_PASEMI
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|
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#define UDBG_UART_PAS_ADDR ((void __iomem *)0xfcff03f8UL)
|
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@@ -7,7 +7,6 @@ source "arch/powerpc/platforms/chrp/Kconfig"
|
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source "arch/powerpc/platforms/512x/Kconfig"
|
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source "arch/powerpc/platforms/52xx/Kconfig"
|
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source "arch/powerpc/platforms/powermac/Kconfig"
|
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source "arch/powerpc/platforms/maple/Kconfig"
|
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source "arch/powerpc/platforms/pasemi/Kconfig"
|
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source "arch/powerpc/platforms/ps3/Kconfig"
|
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source "arch/powerpc/platforms/cell/Kconfig"
|
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|
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@@ -14,7 +14,6 @@ obj-$(CONFIG_FSL_SOC_BOOKE) += 85xx/
|
||||
obj-$(CONFIG_PPC_86xx) += 86xx/
|
||||
obj-$(CONFIG_PPC_POWERNV) += powernv/
|
||||
obj-$(CONFIG_PPC_PSERIES) += pseries/
|
||||
obj-$(CONFIG_PPC_MAPLE) += maple/
|
||||
obj-$(CONFIG_PPC_PASEMI) += pasemi/
|
||||
obj-$(CONFIG_PPC_CELL) += cell/
|
||||
obj-$(CONFIG_PPC_PS3) += ps3/
|
||||
|
||||
@@ -1,19 +0,0 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
config PPC_MAPLE
|
||||
depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
|
||||
bool "Maple 970FX Evaluation Board"
|
||||
select FORCE_PCI
|
||||
select MPIC
|
||||
select U3_DART
|
||||
select MPIC_U3_HT_IRQS
|
||||
select GENERIC_TBSYNC
|
||||
select PPC_UDBG_16550
|
||||
select PPC_970_NAP
|
||||
select PPC_64S_HASH_MMU
|
||||
select PPC_HASH_MMU_NATIVE
|
||||
select PPC_RTAS
|
||||
select MMIO_NVRAM
|
||||
select ATA_NONSTANDARD if ATA
|
||||
help
|
||||
This option enables support for the Maple 970FX Evaluation Board.
|
||||
For more information, refer to <http://www.970eval.com>
|
||||
@@ -1,2 +0,0 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
obj-y += setup.o pci.o time.o
|
||||
@@ -1,14 +0,0 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Declarations for maple-specific code.
|
||||
*
|
||||
* Maple is the name of a PPC970 evaluation board.
|
||||
*/
|
||||
extern int maple_set_rtc_time(struct rtc_time *tm);
|
||||
extern void maple_get_rtc_time(struct rtc_time *tm);
|
||||
extern time64_t maple_get_boot_time(void);
|
||||
extern void maple_pci_init(void);
|
||||
extern void maple_pci_irq_fixup(struct pci_dev *dev);
|
||||
extern int maple_pci_get_legacy_ide_irq(struct pci_dev *dev, int channel);
|
||||
|
||||
extern struct pci_controller_ops maple_pci_controller_ops;
|
||||
File diff suppressed because it is too large
Load Diff
@@ -1,363 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* Maple (970 eval board) setup code
|
||||
*
|
||||
* (c) Copyright 2004 Benjamin Herrenschmidt (benh@kernel.crashing.org),
|
||||
* IBM Corp.
|
||||
*/
|
||||
|
||||
#undef DEBUG
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/export.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/unistd.h>
|
||||
#include <linux/ptrace.h>
|
||||
#include <linux/user.h>
|
||||
#include <linux/tty.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/major.h>
|
||||
#include <linux/initrd.h>
|
||||
#include <linux/vt_kern.h>
|
||||
#include <linux/console.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/adb.h>
|
||||
#include <linux/cuda.h>
|
||||
#include <linux/pmu.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <linux/root_dev.h>
|
||||
#include <linux/serial.h>
|
||||
#include <linux/smp.h>
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/memblock.h>
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/sections.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/pci-bridge.h>
|
||||
#include <asm/iommu.h>
|
||||
#include <asm/machdep.h>
|
||||
#include <asm/dma.h>
|
||||
#include <asm/cputable.h>
|
||||
#include <asm/time.h>
|
||||
#include <asm/mpic.h>
|
||||
#include <asm/rtas.h>
|
||||
#include <asm/udbg.h>
|
||||
#include <asm/nvram.h>
|
||||
|
||||
#include "maple.h"
|
||||
|
||||
#ifdef DEBUG
|
||||
#define DBG(fmt...) udbg_printf(fmt)
|
||||
#else
|
||||
#define DBG(fmt...)
|
||||
#endif
|
||||
|
||||
static unsigned long maple_find_nvram_base(void)
|
||||
{
|
||||
struct device_node *rtcs;
|
||||
unsigned long result = 0;
|
||||
|
||||
/* find NVRAM device */
|
||||
rtcs = of_find_compatible_node(NULL, "nvram", "AMD8111");
|
||||
if (rtcs) {
|
||||
struct resource r;
|
||||
if (of_address_to_resource(rtcs, 0, &r)) {
|
||||
printk(KERN_EMERG "Maple: Unable to translate NVRAM"
|
||||
" address\n");
|
||||
goto bail;
|
||||
}
|
||||
if (!(r.flags & IORESOURCE_IO)) {
|
||||
printk(KERN_EMERG "Maple: NVRAM address isn't PIO!\n");
|
||||
goto bail;
|
||||
}
|
||||
result = r.start;
|
||||
} else
|
||||
printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
|
||||
bail:
|
||||
of_node_put(rtcs);
|
||||
return result;
|
||||
}
|
||||
|
||||
static void __noreturn maple_restart(char *cmd)
|
||||
{
|
||||
unsigned int maple_nvram_base;
|
||||
const unsigned int *maple_nvram_offset, *maple_nvram_command;
|
||||
struct device_node *sp;
|
||||
|
||||
maple_nvram_base = maple_find_nvram_base();
|
||||
if (maple_nvram_base == 0)
|
||||
goto fail;
|
||||
|
||||
/* find service processor device */
|
||||
sp = of_find_node_by_name(NULL, "service-processor");
|
||||
if (!sp) {
|
||||
printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
|
||||
goto fail;
|
||||
}
|
||||
maple_nvram_offset = of_get_property(sp, "restart-addr", NULL);
|
||||
maple_nvram_command = of_get_property(sp, "restart-value", NULL);
|
||||
of_node_put(sp);
|
||||
|
||||
/* send command */
|
||||
outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset);
|
||||
for (;;) ;
|
||||
fail:
|
||||
printk(KERN_EMERG "Maple: Manual Restart Required\n");
|
||||
for (;;) ;
|
||||
}
|
||||
|
||||
static void __noreturn maple_power_off(void)
|
||||
{
|
||||
unsigned int maple_nvram_base;
|
||||
const unsigned int *maple_nvram_offset, *maple_nvram_command;
|
||||
struct device_node *sp;
|
||||
|
||||
maple_nvram_base = maple_find_nvram_base();
|
||||
if (maple_nvram_base == 0)
|
||||
goto fail;
|
||||
|
||||
/* find service processor device */
|
||||
sp = of_find_node_by_name(NULL, "service-processor");
|
||||
if (!sp) {
|
||||
printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
|
||||
goto fail;
|
||||
}
|
||||
maple_nvram_offset = of_get_property(sp, "power-off-addr", NULL);
|
||||
maple_nvram_command = of_get_property(sp, "power-off-value", NULL);
|
||||
of_node_put(sp);
|
||||
|
||||
/* send command */
|
||||
outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset);
|
||||
for (;;) ;
|
||||
fail:
|
||||
printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
|
||||
for (;;) ;
|
||||
}
|
||||
|
||||
static void __noreturn maple_halt(void)
|
||||
{
|
||||
maple_power_off();
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
static struct smp_ops_t maple_smp_ops = {
|
||||
.probe = smp_mpic_probe,
|
||||
.message_pass = smp_mpic_message_pass,
|
||||
.kick_cpu = smp_generic_kick_cpu,
|
||||
.setup_cpu = smp_mpic_setup_cpu,
|
||||
.give_timebase = smp_generic_give_timebase,
|
||||
.take_timebase = smp_generic_take_timebase,
|
||||
};
|
||||
#endif /* CONFIG_SMP */
|
||||
|
||||
static void __init maple_use_rtas_reboot_and_halt_if_present(void)
|
||||
{
|
||||
if (rtas_function_implemented(RTAS_FN_SYSTEM_REBOOT) &&
|
||||
rtas_function_implemented(RTAS_FN_POWER_OFF)) {
|
||||
ppc_md.restart = rtas_restart;
|
||||
pm_power_off = rtas_power_off;
|
||||
ppc_md.halt = rtas_halt;
|
||||
}
|
||||
}
|
||||
|
||||
static void __init maple_setup_arch(void)
|
||||
{
|
||||
/* init to some ~sane value until calibrate_delay() runs */
|
||||
loops_per_jiffy = 50000000;
|
||||
|
||||
/* Setup SMP callback */
|
||||
#ifdef CONFIG_SMP
|
||||
smp_ops = &maple_smp_ops;
|
||||
#endif
|
||||
maple_use_rtas_reboot_and_halt_if_present();
|
||||
|
||||
printk(KERN_DEBUG "Using native/NAP idle loop\n");
|
||||
|
||||
mmio_nvram_init();
|
||||
}
|
||||
|
||||
/*
|
||||
* This is almost identical to pSeries and CHRP. We need to make that
|
||||
* code generic at one point, with appropriate bits in the device-tree to
|
||||
* identify the presence of an HT APIC
|
||||
*/
|
||||
static void __init maple_init_IRQ(void)
|
||||
{
|
||||
struct device_node *root, *np, *mpic_node = NULL;
|
||||
const unsigned int *opprop;
|
||||
unsigned long openpic_addr = 0;
|
||||
int naddr, n, i, opplen, has_isus = 0;
|
||||
struct mpic *mpic;
|
||||
unsigned int flags = 0;
|
||||
|
||||
/* Locate MPIC in the device-tree. Note that there is a bug
|
||||
* in Maple device-tree where the type of the controller is
|
||||
* open-pic and not interrupt-controller
|
||||
*/
|
||||
|
||||
for_each_node_by_type(np, "interrupt-controller")
|
||||
if (of_device_is_compatible(np, "open-pic")) {
|
||||
mpic_node = np;
|
||||
break;
|
||||
}
|
||||
if (mpic_node == NULL)
|
||||
for_each_node_by_type(np, "open-pic") {
|
||||
mpic_node = np;
|
||||
break;
|
||||
}
|
||||
if (mpic_node == NULL) {
|
||||
printk(KERN_ERR
|
||||
"Failed to locate the MPIC interrupt controller\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* Find address list in /platform-open-pic */
|
||||
root = of_find_node_by_path("/");
|
||||
naddr = of_n_addr_cells(root);
|
||||
opprop = of_get_property(root, "platform-open-pic", &opplen);
|
||||
if (opprop) {
|
||||
openpic_addr = of_read_number(opprop, naddr);
|
||||
has_isus = (opplen > naddr);
|
||||
printk(KERN_DEBUG "OpenPIC addr: %lx, has ISUs: %d\n",
|
||||
openpic_addr, has_isus);
|
||||
}
|
||||
|
||||
BUG_ON(openpic_addr == 0);
|
||||
|
||||
/* Check for a big endian MPIC */
|
||||
if (of_property_read_bool(np, "big-endian"))
|
||||
flags |= MPIC_BIG_ENDIAN;
|
||||
|
||||
/* XXX Maple specific bits */
|
||||
flags |= MPIC_U3_HT_IRQS;
|
||||
/* All U3/U4 are big-endian, older SLOF firmware doesn't encode this */
|
||||
flags |= MPIC_BIG_ENDIAN;
|
||||
|
||||
/* Setup the openpic driver. More device-tree junks, we hard code no
|
||||
* ISUs for now. I'll have to revisit some stuffs with the folks doing
|
||||
* the firmware for those
|
||||
*/
|
||||
mpic = mpic_alloc(mpic_node, openpic_addr, flags,
|
||||
/*has_isus ? 16 :*/ 0, 0, " MPIC ");
|
||||
BUG_ON(mpic == NULL);
|
||||
|
||||
/* Add ISUs */
|
||||
opplen /= sizeof(u32);
|
||||
for (n = 0, i = naddr; i < opplen; i += naddr, n++) {
|
||||
unsigned long isuaddr = of_read_number(opprop + i, naddr);
|
||||
mpic_assign_isu(mpic, n, isuaddr);
|
||||
}
|
||||
|
||||
/* All ISUs are setup, complete initialization */
|
||||
mpic_init(mpic);
|
||||
ppc_md.get_irq = mpic_get_irq;
|
||||
of_node_put(mpic_node);
|
||||
of_node_put(root);
|
||||
}
|
||||
|
||||
static void __init maple_progress(char *s, unsigned short hex)
|
||||
{
|
||||
printk("*** %04x : %s\n", hex, s ? s : "");
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Called very early, MMU is off, device-tree isn't unflattened
|
||||
*/
|
||||
static int __init maple_probe(void)
|
||||
{
|
||||
if (!of_machine_is_compatible("Momentum,Maple") &&
|
||||
!of_machine_is_compatible("Momentum,Apache"))
|
||||
return 0;
|
||||
|
||||
pm_power_off = maple_power_off;
|
||||
|
||||
iommu_init_early_dart(&maple_pci_controller_ops);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_EDAC
|
||||
/*
|
||||
* Register a platform device for CPC925 memory controller on
|
||||
* all boards with U3H (CPC925) bridge.
|
||||
*/
|
||||
static int __init maple_cpc925_edac_setup(void)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
struct device_node *np = NULL;
|
||||
struct resource r;
|
||||
int ret;
|
||||
volatile void __iomem *mem;
|
||||
u32 rev;
|
||||
|
||||
np = of_find_node_by_type(NULL, "memory-controller");
|
||||
if (!np) {
|
||||
printk(KERN_ERR "%s: Unable to find memory-controller node\n",
|
||||
__func__);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = of_address_to_resource(np, 0, &r);
|
||||
of_node_put(np);
|
||||
|
||||
if (ret < 0) {
|
||||
printk(KERN_ERR "%s: Unable to get memory-controller reg\n",
|
||||
__func__);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
mem = ioremap(r.start, resource_size(&r));
|
||||
if (!mem) {
|
||||
printk(KERN_ERR "%s: Unable to map memory-controller memory\n",
|
||||
__func__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
rev = __raw_readl(mem);
|
||||
iounmap(mem);
|
||||
|
||||
if (rev < 0x34 || rev > 0x3f) { /* U3H */
|
||||
printk(KERN_ERR "%s: Non-CPC925(U3H) bridge revision: %02x\n",
|
||||
__func__, rev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
pdev = platform_device_register_simple("cpc925_edac", 0, &r, 1);
|
||||
if (IS_ERR(pdev))
|
||||
return PTR_ERR(pdev);
|
||||
|
||||
printk(KERN_INFO "%s: CPC925 platform device created\n", __func__);
|
||||
|
||||
return 0;
|
||||
}
|
||||
machine_device_initcall(maple, maple_cpc925_edac_setup);
|
||||
#endif
|
||||
|
||||
define_machine(maple) {
|
||||
.name = "Maple",
|
||||
.probe = maple_probe,
|
||||
.setup_arch = maple_setup_arch,
|
||||
.discover_phbs = maple_pci_init,
|
||||
.init_IRQ = maple_init_IRQ,
|
||||
.pci_irq_fixup = maple_pci_irq_fixup,
|
||||
.pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq,
|
||||
.restart = maple_restart,
|
||||
.halt = maple_halt,
|
||||
.get_boot_time = maple_get_boot_time,
|
||||
.set_rtc_time = maple_set_rtc_time,
|
||||
.get_rtc_time = maple_get_rtc_time,
|
||||
.progress = maple_progress,
|
||||
.power_save = power4_idle,
|
||||
};
|
||||
@@ -1,170 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* (c) Copyright 2004 Benjamin Herrenschmidt (benh@kernel.crashing.org),
|
||||
* IBM Corp.
|
||||
*/
|
||||
|
||||
#undef DEBUG
|
||||
|
||||
#include <linux/errno.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/param.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/time.h>
|
||||
#include <linux/adb.h>
|
||||
#include <linux/pmu.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/mc146818rtc.h>
|
||||
#include <linux/bcd.h>
|
||||
#include <linux/of_address.h>
|
||||
|
||||
#include <asm/sections.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/machdep.h>
|
||||
#include <asm/time.h>
|
||||
|
||||
#include "maple.h"
|
||||
|
||||
#ifdef DEBUG
|
||||
#define DBG(x...) printk(x)
|
||||
#else
|
||||
#define DBG(x...)
|
||||
#endif
|
||||
|
||||
static int maple_rtc_addr;
|
||||
|
||||
static int maple_clock_read(int addr)
|
||||
{
|
||||
outb_p(addr, maple_rtc_addr);
|
||||
return inb_p(maple_rtc_addr+1);
|
||||
}
|
||||
|
||||
static void maple_clock_write(unsigned long val, int addr)
|
||||
{
|
||||
outb_p(addr, maple_rtc_addr);
|
||||
outb_p(val, maple_rtc_addr+1);
|
||||
}
|
||||
|
||||
void maple_get_rtc_time(struct rtc_time *tm)
|
||||
{
|
||||
do {
|
||||
tm->tm_sec = maple_clock_read(RTC_SECONDS);
|
||||
tm->tm_min = maple_clock_read(RTC_MINUTES);
|
||||
tm->tm_hour = maple_clock_read(RTC_HOURS);
|
||||
tm->tm_mday = maple_clock_read(RTC_DAY_OF_MONTH);
|
||||
tm->tm_mon = maple_clock_read(RTC_MONTH);
|
||||
tm->tm_year = maple_clock_read(RTC_YEAR);
|
||||
} while (tm->tm_sec != maple_clock_read(RTC_SECONDS));
|
||||
|
||||
if (!(maple_clock_read(RTC_CONTROL) & RTC_DM_BINARY)
|
||||
|| RTC_ALWAYS_BCD) {
|
||||
tm->tm_sec = bcd2bin(tm->tm_sec);
|
||||
tm->tm_min = bcd2bin(tm->tm_min);
|
||||
tm->tm_hour = bcd2bin(tm->tm_hour);
|
||||
tm->tm_mday = bcd2bin(tm->tm_mday);
|
||||
tm->tm_mon = bcd2bin(tm->tm_mon);
|
||||
tm->tm_year = bcd2bin(tm->tm_year);
|
||||
}
|
||||
if ((tm->tm_year + 1900) < 1970)
|
||||
tm->tm_year += 100;
|
||||
|
||||
tm->tm_wday = -1;
|
||||
}
|
||||
|
||||
int maple_set_rtc_time(struct rtc_time *tm)
|
||||
{
|
||||
unsigned char save_control, save_freq_select;
|
||||
int sec, min, hour, mon, mday, year;
|
||||
|
||||
spin_lock(&rtc_lock);
|
||||
|
||||
save_control = maple_clock_read(RTC_CONTROL); /* tell the clock it's being set */
|
||||
|
||||
maple_clock_write((save_control|RTC_SET), RTC_CONTROL);
|
||||
|
||||
save_freq_select = maple_clock_read(RTC_FREQ_SELECT); /* stop and reset prescaler */
|
||||
|
||||
maple_clock_write((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
|
||||
|
||||
sec = tm->tm_sec;
|
||||
min = tm->tm_min;
|
||||
hour = tm->tm_hour;
|
||||
mon = tm->tm_mon;
|
||||
mday = tm->tm_mday;
|
||||
year = tm->tm_year;
|
||||
|
||||
if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
|
||||
sec = bin2bcd(sec);
|
||||
min = bin2bcd(min);
|
||||
hour = bin2bcd(hour);
|
||||
mon = bin2bcd(mon);
|
||||
mday = bin2bcd(mday);
|
||||
year = bin2bcd(year);
|
||||
}
|
||||
maple_clock_write(sec, RTC_SECONDS);
|
||||
maple_clock_write(min, RTC_MINUTES);
|
||||
maple_clock_write(hour, RTC_HOURS);
|
||||
maple_clock_write(mon, RTC_MONTH);
|
||||
maple_clock_write(mday, RTC_DAY_OF_MONTH);
|
||||
maple_clock_write(year, RTC_YEAR);
|
||||
|
||||
/* The following flags have to be released exactly in this order,
|
||||
* otherwise the DS12887 (popular MC146818A clone with integrated
|
||||
* battery and quartz) will not reset the oscillator and will not
|
||||
* update precisely 500 ms later. You won't find this mentioned in
|
||||
* the Dallas Semiconductor data sheets, but who believes data
|
||||
* sheets anyway ... -- Markus Kuhn
|
||||
*/
|
||||
maple_clock_write(save_control, RTC_CONTROL);
|
||||
maple_clock_write(save_freq_select, RTC_FREQ_SELECT);
|
||||
|
||||
spin_unlock(&rtc_lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct resource rtc_iores = {
|
||||
.name = "rtc",
|
||||
.flags = IORESOURCE_IO | IORESOURCE_BUSY,
|
||||
};
|
||||
|
||||
time64_t __init maple_get_boot_time(void)
|
||||
{
|
||||
struct rtc_time tm;
|
||||
struct device_node *rtcs;
|
||||
|
||||
rtcs = of_find_compatible_node(NULL, "rtc", "pnpPNP,b00");
|
||||
if (rtcs) {
|
||||
struct resource r;
|
||||
if (of_address_to_resource(rtcs, 0, &r)) {
|
||||
printk(KERN_EMERG "Maple: Unable to translate RTC"
|
||||
" address\n");
|
||||
goto bail;
|
||||
}
|
||||
if (!(r.flags & IORESOURCE_IO)) {
|
||||
printk(KERN_EMERG "Maple: RTC address isn't PIO!\n");
|
||||
goto bail;
|
||||
}
|
||||
maple_rtc_addr = r.start;
|
||||
printk(KERN_INFO "Maple: Found RTC at IO 0x%x\n",
|
||||
maple_rtc_addr);
|
||||
}
|
||||
bail:
|
||||
of_node_put(rtcs);
|
||||
if (maple_rtc_addr == 0) {
|
||||
maple_rtc_addr = RTC_PORT(0); /* legacy address */
|
||||
printk(KERN_INFO "Maple: No device node for RTC, assuming "
|
||||
"legacy address (0x%x)\n", maple_rtc_addr);
|
||||
}
|
||||
|
||||
rtc_iores.start = maple_rtc_addr;
|
||||
rtc_iores.end = maple_rtc_addr + 7;
|
||||
request_resource(&ioport_resource, &rtc_iores);
|
||||
|
||||
maple_get_rtc_time(&tm);
|
||||
return rtc_tm_to_time64(&tm);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user