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| author | Tzachi Perelstein <tzachi@marvell.com> | 2007-11-06 10:35:40 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-01-26 15:03:41 +0000 |
| commit | d910a0aa21c9c6e824744d0139bbe6a9ae676e2d (patch) | |
| tree | e56c1651cc9367b31c4dcda721a6a33eb0d36ae4 | |
| parent | 3ebb5a2b44b02bddd5fbf0f29d71f1df6146c2c3 (diff) | |
| download | talos-obmc-linux-d910a0aa21c9c6e824744d0139bbe6a9ae676e2d.tar.gz talos-obmc-linux-d910a0aa21c9c6e824744d0139bbe6a9ae676e2d.zip | |
[ARM] Feroceon: support old cores with ARM926 ID
This enables the usage of some old Feroceon cores
for which the CPU ID is equal to the ARM926 ID.
Relevant for Feroceon-1850 and old Feroceon-2850.
Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mm/Kconfig | 9 | ||||
| -rw-r--r-- | arch/arm/mm/proc-feroceon.S | 27 |
2 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 378fb744abe2..9cdc74f94b11 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -354,6 +354,15 @@ config CPU_FEROCEON select CPU_COPY_V4WB if MMU select CPU_TLB_V4WBI if MMU +config CPU_FEROCEON_OLD_ID + bool "Accept early Feroceon cores with an ARM926 ID" + depends on CPU_FEROCEON && !CPU_ARM926T + default y + help + This enables the usage of some old Feroceon cores + for which the CPU ID is equal to the ARM926 ID. + Relevant for Feroceon-1850 and early Feroceon-2850. + # ARMv6 config CPU_V6 bool "Support ARM V6 processor" diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index 8ad341af7906..fa0dc7e6f0ea 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -453,6 +453,33 @@ cpu_feroceon_name: .section ".proc.info.init", #alloc, #execinstr +#ifdef CONFIG_CPU_FEROCEON_OLD_ID + .type __feroceon_old_id_proc_info,#object +__feroceon_old_id_proc_info: + .long 0x41069260 + .long 0xfffffff0 + .long PMD_TYPE_SECT | \ + PMD_SECT_BUFFERABLE | \ + PMD_SECT_CACHEABLE | \ + PMD_BIT4 | \ + PMD_SECT_AP_WRITE | \ + PMD_SECT_AP_READ + .long PMD_TYPE_SECT | \ + PMD_BIT4 | \ + PMD_SECT_AP_WRITE | \ + PMD_SECT_AP_READ + b __feroceon_setup + .long cpu_arch_name + .long cpu_elf_name + .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP + .long cpu_feroceon_name + .long feroceon_processor_functions + .long v4wbi_tlb_fns + .long v4wb_user_fns + .long feroceon_cache_fns + .size __feroceon_old_id_proc_info, . - __feroceon_old_id_proc_info +#endif + .type __feroceon_proc_info,#object __feroceon_proc_info: .long 0x56055310 |
