diff options
Diffstat (limited to 'arch/m68k/platform')
| -rw-r--r-- | arch/m68k/platform/54xx/config.c | 47 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/Makefile | 6 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/bootlogo.h | 2 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/bootlogo.pl | 10 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/config.c | 3 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/head-pilot.S | 19 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/head-rom.S | 9 | ||||
| -rw-r--r-- | arch/m68k/platform/coldfire/entry.S | 7 | ||||
| -rw-r--r-- | arch/m68k/platform/coldfire/head.S | 53 | ||||
| -rw-r--r-- | arch/m68k/platform/coldfire/sltimers.c | 9 |
10 files changed, 116 insertions, 49 deletions
diff --git a/arch/m68k/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c index 78130984db95..ee043540bfa2 100644 --- a/arch/m68k/platform/54xx/config.c +++ b/arch/m68k/platform/54xx/config.c @@ -13,11 +13,17 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> +#include <linux/mm.h> +#include <linux/bootmem.h> +#include <asm/pgalloc.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/m54xxsim.h> #include <asm/mcfuart.h> #include <asm/m54xxgpt.h> +#ifdef CONFIG_MMU +#include <asm/mmu_context.h> +#endif /***************************************************************************/ @@ -95,8 +101,49 @@ static void mcf54xx_reset(void) /***************************************************************************/ +#ifdef CONFIG_MMU + +unsigned long num_pages; + +static void __init mcf54xx_bootmem_alloc(void) +{ + unsigned long start_pfn; + unsigned long memstart; + + /* _rambase and _ramend will be naturally page aligned */ + m68k_memory[0].addr = _rambase; + m68k_memory[0].size = _ramend - _rambase; + + /* compute total pages in system */ + num_pages = (_ramend - _rambase) >> PAGE_SHIFT; + + /* page numbers */ + memstart = PAGE_ALIGN(_ramstart); + min_low_pfn = _rambase >> PAGE_SHIFT; + start_pfn = memstart >> PAGE_SHIFT; + max_low_pfn = _ramend >> PAGE_SHIFT; + high_memory = (void *)_ramend; + + m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6; + module_fixup(NULL, __start_fixup, __stop_fixup); + + /* setup bootmem data */ + m68k_setup_node(0); + memstart += init_bootmem_node(NODE_DATA(0), start_pfn, + min_low_pfn, max_low_pfn); + free_bootmem_node(NODE_DATA(0), memstart, _ramend - memstart); +} + +#endif /* CONFIG_MMU */ + +/***************************************************************************/ + void __init config_BSP(char *commandp, int size) { +#ifdef CONFIG_MMU + mcf54xx_bootmem_alloc(); + mmu_context_init(); +#endif mach_reset = mcf54xx_reset; m54xx_uarts_init(); } diff --git a/arch/m68k/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile index e4dfd8fde068..ee61bf84d4a0 100644 --- a/arch/m68k/platform/68328/Makefile +++ b/arch/m68k/platform/68328/Makefile @@ -14,12 +14,8 @@ obj-$(CONFIG_M68328) += config.o obj-$(CONFIG_ROM) += romvec.o extra-y := head.o -extra-$(CONFIG_M68328) += bootlogo.rh head.o - -$(obj)/bootlogo.rh: $(src)/bootlogo.h - perl $(src)/bootlogo.pl < $(src)/bootlogo.h > $(obj)/bootlogo.rh $(obj)/head.o: $(obj)/$(head-y) ln -sf $(head-y) $(obj)/head.o -clean-files := $(obj)/bootlogo.rh $(obj)/head.o $(head-y) +clean-files := $(obj)/head.o $(head-y) diff --git a/arch/m68k/platform/68328/bootlogo.h b/arch/m68k/platform/68328/bootlogo.h index 67bc2c17386e..b896c933fafc 100644 --- a/arch/m68k/platform/68328/bootlogo.h +++ b/arch/m68k/platform/68328/bootlogo.h @@ -1,6 +1,6 @@ #define bootlogo_width 160 #define bootlogo_height 160 -static unsigned char bootlogo_bits[] = { +unsigned char __attribute__ ((aligned(16))) bootlogo_bits[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x55, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, diff --git a/arch/m68k/platform/68328/bootlogo.pl b/arch/m68k/platform/68328/bootlogo.pl deleted file mode 100644 index b04ae3f50da5..000000000000 --- a/arch/m68k/platform/68328/bootlogo.pl +++ /dev/null @@ -1,10 +0,0 @@ - -$_ = join("", <>); - -s/(0x[0-9a-f]{2})/sprintf("0x%.2x",ord(pack("b8",unpack("B8",chr(hex($1))))))/gei; - -s/^ / .byte /gm; -s/[,};]+$//gm; -s/^static.*//gm; - -print $_; diff --git a/arch/m68k/platform/68328/config.c b/arch/m68k/platform/68328/config.c index a7bd21deb00f..d70bf2623db1 100644 --- a/arch/m68k/platform/68328/config.c +++ b/arch/m68k/platform/68328/config.c @@ -20,6 +20,9 @@ #include <asm/system.h> #include <asm/machdep.h> #include <asm/MC68328.h> +#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD) +#include "bootlogo.h" +#endif /***************************************************************************/ diff --git a/arch/m68k/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S index aecff532b343..2ebfd6420818 100644 --- a/arch/m68k/platform/68328/head-pilot.S +++ b/arch/m68k/platform/68328/head-pilot.S @@ -24,19 +24,7 @@ .global _ramstart .global _ramend -.global penguin_bits - -#ifdef CONFIG_PILOT - -#define IMR 0xFFFFF304 - - .data - .align 16 - -penguin_bits: -#include "bootlogo.rh" - -#endif +.global bootlogo_bits /*****************************************************************************/ @@ -185,9 +173,6 @@ L3: moveq #79, %d7 movel %d0, _ramend - movel %a3, %d0 - movel %d0, rom_length - pea 0 pea env pea %sp@(4) @@ -196,7 +181,7 @@ L3: DBG_PUTC('H') #ifdef CONFIG_PILOT - movel #penguin_bits, 0xFFFFFA00 + movel #bootlogo_bits, 0xFFFFFA00 moveb #10, 0xFFFFFA05 movew #160, 0xFFFFFA08 movew #160, 0xFFFFFA0A diff --git a/arch/m68k/platform/68328/head-rom.S b/arch/m68k/platform/68328/head-rom.S index 6ec77d3ea0b3..a5ff96d0295f 100644 --- a/arch/m68k/platform/68328/head-rom.S +++ b/arch/m68k/platform/68328/head-rom.S @@ -8,7 +8,7 @@ .global _ramend #ifdef CONFIG_INIT_LCD - .global splash_bits + .global bootlogo_bits #endif .data @@ -29,16 +29,11 @@ _ramend: #define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) -#ifdef CONFIG_INIT_LCD -splash_bits: -#include "bootlogo.rh" -#endif - .text _start: _stext: movew #0x2700,%sr #ifdef CONFIG_INIT_LCD - movel #splash_bits, 0xfffffA00 /* LSSA */ + movel #bootlogo_bits, 0xfffffA00 /* LSSA */ moveb #0x28, 0xfffffA05 /* LVPW */ movew #0x280, 0xFFFFFa08 /* LXMAX */ movew #0x1df, 0xFFFFFa0a /* LYMAX */ diff --git a/arch/m68k/platform/coldfire/entry.S b/arch/m68k/platform/coldfire/entry.S index 3157461a8d1d..863889fc31c9 100644 --- a/arch/m68k/platform/coldfire/entry.S +++ b/arch/m68k/platform/coldfire/entry.S @@ -54,7 +54,6 @@ sw_usp: .globl ret_from_signal .globl sys_call_table .globl inthandler -.globl fasthandler enosys: mov.l #sys_ni_syscall,%d3 @@ -63,6 +62,7 @@ enosys: ENTRY(system_call) SAVE_ALL_SYS move #0x2000,%sr /* enable intrs again */ + GET_CURRENT(%d2) cmpl #NR_syscalls,%d0 jcc enosys @@ -166,6 +166,7 @@ Lsignal_return: */ ENTRY(inthandler) SAVE_ALL_INT + GET_CURRENT(%d2) movew %sp@(PT_OFF_FORMATVEC),%d0 /* put exception # in d0 */ andl #0x03fc,%d0 /* mask out vector only */ @@ -191,7 +192,9 @@ ENTRY(resume) movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack pointer */ RDUSP /* movel %usp,%a3 */ movel %a3,%a0@(TASK_THREAD+THREAD_USP) /* save thread user stack */ - +#ifdef CONFIG_MMU + movel %a1,%a2 /* set new current */ +#endif movel %a1@(TASK_THREAD+THREAD_USP),%a3 /* restore thread user stack */ WRUSP /* movel %a3,%usp */ movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new kernel stack */ diff --git a/arch/m68k/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S index c33483824a2e..38f04a3f6207 100644 --- a/arch/m68k/platform/coldfire/head.S +++ b/arch/m68k/platform/coldfire/head.S @@ -3,7 +3,7 @@ /* * head.S -- common startup code for ColdFire CPUs. * - * (C) Copyright 1999-2010, Greg Ungerer <gerg@snapgear.com>. + * (C) Copyright 1999-2011, Greg Ungerer <gerg@snapgear.com>. */ /*****************************************************************************/ @@ -13,6 +13,7 @@ #include <asm/asm-offsets.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> +#include <asm/mcfmmu.h> #include <asm/thread_info.h> /*****************************************************************************/ @@ -135,6 +136,14 @@ _init_sp: __HEAD +#ifdef CONFIG_MMU +_start0: + jmp _start +.global kernel_pg_dir +.equ kernel_pg_dir,_start0 +.equ .,_start0+0x1000 +#endif + /* * This is the codes first entry point. This is where it all * begins... @@ -143,6 +152,9 @@ __HEAD _start: nop /* filler */ movew #0x2700, %sr /* no interrupts */ + movel #CACHE_INIT,%d0 /* disable cache */ + movec %d0,%CACR + nop #if defined(CONFIG_UBOOT) movel %sp,_init_sp /* save initial stack pointer */ #endif @@ -176,9 +188,6 @@ _start: * it is very similar. Define the exact settings in the headers * then the code here is the same for all. */ - movel #CACHE_INIT,%d0 /* invalidate whole cache */ - movec %d0,%CACR - nop movel #ACR0_MODE,%d0 /* set RAM region for caching */ movec %d0,%ACR0 movel #ACR1_MODE,%d0 /* anything else to cache? */ @@ -193,6 +202,26 @@ _start: movec %d0,%CACR nop +#ifdef CONFIG_MMU + /* + * Identity mapping for the kernel region. + */ + movel #(MMUBASE+1),%d0 /* enable MMUBAR registers */ + movec %d0,%MMUBAR + movel #MMUOR_CA,%d0 /* clear TLB entries */ + movel %d0,MMUOR + movel #0,%d0 /* set ASID to 0 */ + movec %d0,%asid + + movel #MMUCR_EN,%d0 /* Enable the identity map */ + movel %d0,MMUCR + nop /* sync i-pipeline */ + + movel #_vstart,%a0 /* jump to "virtual" space */ + jmp %a0@ +_vstart: +#endif /* CONFIG_MMU */ + #ifdef CONFIG_ROMFS_FS /* * Move ROM filesystem above bss :-) @@ -238,6 +267,22 @@ _clear_bss: lea init_thread_union,%a0 lea THREAD_SIZE(%a0),%sp +#ifdef CONFIG_MMU +.global m68k_cputype +.global m68k_mmutype +.global m68k_fputype +.global m68k_machtype + movel #CPU_COLDFIRE,%d0 + movel %d0,m68k_cputype /* Mark us as a ColdFire */ + movel #MMU_COLDFIRE,%d0 + movel %d0,m68k_mmutype + movel #FPU_COLDFIRE,%d0 + movel %d0,m68k_fputype + movel #MACH_M54XX,%d0 + movel %d0,m68k_machtype /* Mark us as a 54xx machine */ + lea init_task,%a2 /* Set "current" init task */ +#endif + /* * Assember start up done, start code proper. */ diff --git a/arch/m68k/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c index b7f822b552bb..54e1452f853a 100644 --- a/arch/m68k/platform/coldfire/sltimers.c +++ b/arch/m68k/platform/coldfire/sltimers.c @@ -98,16 +98,19 @@ static struct irqaction mcfslt_timer_irq = { static cycle_t mcfslt_read_clk(struct clocksource *cs) { unsigned long flags; - u32 cycles; - u16 scnt; + u32 cycles, scnt; local_irq_save(flags); scnt = __raw_readl(TA(MCFSLT_SCNT)); cycles = mcfslt_cnt; + if (__raw_readl(TA(MCFSLT_SSR)) & MCFSLT_SSR_TE) { + cycles += mcfslt_cycles_per_jiffy; + scnt = __raw_readl(TA(MCFSLT_SCNT)); + } local_irq_restore(flags); /* subtract because slice timers count down */ - return cycles - scnt; + return cycles + ((mcfslt_cycles_per_jiffy - 1) - scnt); } static struct clocksource mcfslt_clk = { |