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[PATCH 1/3] MIPS: introduce MIPS_L1_CACHE_SHIFT_<N>

To: <linux-mips@linux-mips.org>
Subject: [PATCH 1/3] MIPS: introduce MIPS_L1_CACHE_SHIFT_<N>
From: Florian Fainelli <florian@openwrt.org>
Date: Fri, 10 Jan 2014 12:35:12 -0800
Cc: <ralf@linux-mips.org>, <blogic@openwrt.org>, <jogo@openwrt.org>, <mbizon@freebox.fr>, <cernekee@gmail.com>, <dgcbueu@gmail.com>, Florian Fainelli <florian@openwrt.org>
In-reply-to: <1389386114-31834-1-git-send-email-florian@openwrt.org>
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Original-recipient: rfc822;linux-mips@linux-mips.org
References: <1389386114-31834-1-git-send-email-florian@openwrt.org>
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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>
---
 arch/mips/Kconfig              | 18 ++++++++++++++++++
 arch/mips/pmcs-msp71xx/Kconfig |  1 +
 arch/mips/ralink/Kconfig       |  1 +
 3 files changed, 20 insertions(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 17cc7ff..753c5a3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -183,6 +183,7 @@ 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
@@ -468,6 +469,7 @@ 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
@@ -488,6 +490,7 @@ 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
@@ -694,6 +697,7 @@ 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.
@@ -1088,6 +1092,18 @@ config FW_SNIPROM
 config BOOT_ELF32
        bool
 
+config MIPS_L1_CACHE_SHIFT_4
+       bool
+
+config MIPS_L1_CACHE_SHIFT_5
+       def_bool y
+
+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
@@ -1372,6 +1388,7 @@ config CPU_CAVIUM_OCTEON
        select LIBFDT
        select USE_OF
        select USB_EHCI_BIG_ENDIAN_MMIO
+       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
@@ -1794,6 +1811,7 @@ 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 3482b8c..6073ca4 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 424f034..1bfd1c1 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"
-- 
1.8.3.2


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