From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Thu, 26 Feb 2015 17:27:06 +0000 (+0900)
Subject: ARM: UniPhier: remove SSC_WAY_SIZE and SSC_NUM_ENTRIES macros
X-Git-Tag: v2015.04-rc3~11^2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=105a9e705efaeeac63e795e2a184b0a18db0ac5a;p=u-boot

ARM: UniPhier: remove SSC_WAY_SIZE and SSC_NUM_ENTRIES macros

Each way of the system cache has 256 entries for PH1-Pro4 and older
SoCs, whereas 512 entries for PH1-Pro5 and newer SoCs.  The line
size is still 128 byte.  Thus, the way size is 32KB/64KB for old/new
SoCs.

To keep lowlevel_init SoC-independent, set BOOT_RAM_SIZE to the
constant value 32KB.  It is large enough for temporary RAM and
should work for all the SoCs of UniPhier family.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---

diff --git a/arch/arm/mach-uniphier/include/mach/ssc-regs.h b/arch/arm/mach-uniphier/include/mach/ssc-regs.h
index 77b3470c6d..02fca3b6f6 100644
--- a/arch/arm/mach-uniphier/include/mach/ssc-regs.h
+++ b/arch/arm/mach-uniphier/include/mach/ssc-regs.h
@@ -60,8 +60,6 @@
 #define SSCOQCE0		0x506c0270
 
 #define SSC_LINE_SIZE		128
-#define SSC_NUM_ENTRIES		256
-#define SSC_WAY_SIZE		((SSC_LINE_SIZE) * (SSC_NUM_ENTRIES))
 #define SSC_RANGE_OP_MAX_SIZE	(0x00400000 - (SSC_LINE_SIZE))
 
 #endif  /* ARCH_SSC_REGS_H */
diff --git a/arch/arm/mach-uniphier/lowlevel_init.S b/arch/arm/mach-uniphier/lowlevel_init.S
index 4b8b623b95..92299fe64d 100644
--- a/arch/arm/mach-uniphier/lowlevel_init.S
+++ b/arch/arm/mach-uniphier/lowlevel_init.S
@@ -7,10 +7,12 @@
 
 #include <config.h>
 #include <linux/linkage.h>
+#include <linux/sizes.h>
 #include <asm/system.h>
 #include <mach/led.h>
 #include <mach/arm-mpcore.h>
 #include <mach/sbc-regs.h>
+#include <mach/ssc-regs.h>
 
 ENTRY(lowlevel_init)
 	mov	r8, lr			@ persevere link reg across call
@@ -122,9 +124,11 @@ ENTRY(enable_mmu)
 	mov	pc, lr
 ENDPROC(enable_mmu)
 
-#include <mach/ssc-regs.h>
-
-#define BOOT_RAM_SIZE    (SSC_WAY_SIZE)
+/*
+ * For PH1-Pro4 or older SoCs, the size of WAY is 32KB.
+ * It is large enough for tmp RAM.
+ */
+#define BOOT_RAM_SIZE    (SZ_32K)
 #define BOOT_WAY_BITS    (0x00000100)   /* way 8 */
 
 ENTRY(setup_init_ram)