MIPS: introduce MIPS_L1_CACHE_SHIFT_<N>

In order to avoid keeping an ever growing list of chips which need to
select a specific MIPS_L1_CACHE_SHIFT value introduce multiple internal
and non-exposed Kconfig symbols for the various MIPS_L1_CACHE_SHIFT
values out there and update the relevant Kconfig symbols to select them.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

3 files changed, 21 insertions, 0 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3d9f9a8b62bd..664c9974521f 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -182,6 +182,7 @@ config MACH_DECSTATION
         select SYS_SUPPORTS_128HZ
         select SYS_SUPPORTS_256HZ
         select SYS_SUPPORTS_1024HZ
+        select MIPS_L1_CACHE_SHIFT_4
         help
           This enables support for DEC's MIPS based workstations.  For details
           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
@@ -467,6 +468,7 @@ config SGI_IP22
         select SYS_SUPPORTS_32BIT_KERNEL
         select SYS_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_BIG_ENDIAN
+        select MIPS_L1_CACHE_SHIFT_7
         help
           This are the SGI Indy, Challenge S and Indigo2, as well as certain
           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
@@ -487,6 +489,7 @@ config SGI_IP27
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_NUMA
         select SYS_SUPPORTS_SMP
+        select MIPS_L1_CACHE_SHIFT_7
         help
           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
           workstations.  To compile a Linux kernel that runs on these, say Y
@@ -693,6 +696,7 @@ config MIKROTIK_RB532
         select SWAP_IO_SPACE
         select BOOT_RAW
         select ARCH_REQUIRE_GPIOLIB
+        select MIPS_L1_CACHE_SHIFT_4
         help
           Support the Mikrotik(tm) RouterBoard 532 series,
           based on the IDT RC32434 SoC.
@@ -1092,6 +1096,18 @@ config FW_SNIPROM
 config BOOT_ELF32
         bool
 
+config MIPS_L1_CACHE_SHIFT_4
+        bool
+
+config MIPS_L1_CACHE_SHIFT_5
+        bool
+
+config MIPS_L1_CACHE_SHIFT_6
+        bool
+
+config MIPS_L1_CACHE_SHIFT_7
+        bool
+
 config MIPS_L1_CACHE_SHIFT
         int
         default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
@@ -1376,6 +1392,8 @@ config CPU_CAVIUM_OCTEON
         select LIBFDT
         select USE_OF
         select USB_EHCI_BIG_ENDIAN_MMIO
+        select SYS_HAS_DMA_OPS
+        select MIPS_L1_CACHE_SHIFT_7
         help
           The Cavium Octeon processor is a highly integrated chip containing
           many ethernet hardware widgets for networking tasks. The processor
@@ -1798,6 +1816,7 @@ config IP22_CPU_SCACHE
 config MIPS_CPU_SCACHE
         bool
         select BOARD_SCACHE
+        select MIPS_L1_CACHE_SHIFT_6
 
 config R5000_CPU_SCACHE
         bool
diff --git a/arch/mips/pmcs-msp71xx/Kconfig b/arch/mips/pmcs-msp71xx/Kconfig
index 3482b8c8640c..6073ca456d11 100644
--- a/arch/mips/pmcs-msp71xx/Kconfig
+++ b/arch/mips/pmcs-msp71xx/Kconfig
@@ -6,6 +6,7 @@ config PMC_MSP4200_EVAL
         bool "PMC-Sierra MSP4200 Eval Board"
         select IRQ_MSP_SLP
         select HW_HAS_PCI
+        select MIPS_L1_CACHE_SHIFT_4
 
 config PMC_MSP4200_GW
         bool "PMC-Sierra MSP4200 VoIP Gateway"
diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig
index 424f03496d14..1bfd1c17b3c2 100644
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -15,6 +15,7 @@ choice
 
         config SOC_RT288X
                 bool "RT288x"
+                select MIPS_L1_CACHE_SHIFT_4
 
         config SOC_RT305X
                 bool "RT305x"