From 9287d95ea194abf32fab24c6909f8ea55ab0292f Mon Sep 17 00:00:00 2001 From: Hirokazu Takata Date: Fri, 6 Jan 2006 00:18:41 -0800 Subject: [PATCH] m32r: Support M32104UT target platform This patch is for supporting a new target platform, Renesas M32104UT evaluation board. The M32104UT is an eval board based on an uT-Engine specification. This board has an MMU-less M32R family processor, M32104. http://www-wa0.personal-media.co.jp/pmc/archive/te/te_m32104_e.pdf This board is one of the most popular M32R platform, so we have ported Linux/M32R to it. Signed-off-by: Naoto Sugai Signed-off-by: Hirokazu Takata Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/m32r/boot/compressed/head.S | 5 +++++ arch/m32r/boot/setup.S | 9 +++++++++ 2 files changed, 14 insertions(+) (limited to 'arch/m32r/boot') diff --git a/arch/m32r/boot/compressed/head.S b/arch/m32r/boot/compressed/head.S index 07cfd6ad1ae4..234d8b1e0ac1 100644 --- a/arch/m32r/boot/compressed/head.S +++ b/arch/m32r/boot/compressed/head.S @@ -143,6 +143,11 @@ startup: ldi r0, -2 ldi r1, 0x0100 ; invalidate stb r1, @r0 +#elif defined(CONFIG_CHIP_M32104) + /* Cache flush */ + ldi r0, -2 + ldi r1, 0x0700 ; invalidate i-cache, copy back d-cache + sth r1, @r0 #else #error "put your cache flush function, please" #endif diff --git a/arch/m32r/boot/setup.S b/arch/m32r/boot/setup.S index 5d256434b4ad..742669fab8a9 100644 --- a/arch/m32r/boot/setup.S +++ b/arch/m32r/boot/setup.S @@ -80,6 +80,10 @@ ENTRY(boot) ldi r1, #0x101 ; cache on (with invalidation) ; ldi r1, #0x00 ; cache off st r1, @r0 +#elif defined(CONFIG_CHIP_M32104) + ldi r0, #-4 ;LDIMM (r0, M32R_MCCR) + ldi r1, #0x703 ; cache on (with invalidation) + st r1, @r0 #else #error unknown chip configuration #endif @@ -115,10 +119,15 @@ mmu_on: st r1, @(MATM_offset,r0) ; Set MATM (T bit ON) ld r0, @(MATM_offset,r0) ; Check #else +#if defined(CONFIG_CHIP_M32700) seth r0,#high(M32R_MCDCAR) or3 r0,r0,#low(M32R_MCDCAR) ld24 r1,#0x8080 st r1,@r0 +#elif defined(CONFIG_CHIP_M32104) + LDIMM (r2, eit_vector) ; set EVB(cr5) + mvtc r2, cr5 +#endif #endif /* CONFIG_MMU */ jmp r13 nop -- cgit v1.2.3