select GENERIC_IOMAP
select GENERIC_STRNCPY_FROM_USER if MMU
select GENERIC_STRNLEN_USER if MMU
- select FPU if MMU
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
config M68020
bool "68020 support"
depends on MMU
+ select FPU
select CPU_HAS_ADDRESS_SPACES
help
If you anticipate running this kernel on a computer with a MC68020
config M68030
bool "68030 support"
depends on MMU && !MMU_SUN3
+ select FPU
select CPU_HAS_ADDRESS_SPACES
help
If you anticipate running this kernel on a computer with a MC68030
config M68040
bool "68040 support"
depends on MMU && !MMU_SUN3
+ select FPU
select CPU_HAS_ADDRESS_SPACES
help
If you anticipate running this kernel on a computer with a MC68LC040
config M68060
bool "68060 support"
depends on MMU && !MMU_SUN3
+ select FPU
select CPU_HAS_ADDRESS_SPACES
help
If you anticipate running this kernel on a computer with a MC68060
bool "MCF547x"
select M54xx
select MMU_COLDFIRE if MMU
+ select FPU if MMU
select HAVE_CACHE_CB
select HAVE_MBAR
select CPU_NO_EFFICIENT_FFS
config M548x
bool "MCF548x"
select MMU_COLDFIRE if MMU
+ select FPU if MMU
select M54xx
select HAVE_CACHE_CB
select HAVE_MBAR
void clk_disable(struct clk *clk)
{
unsigned long flags;
+
+ if (!clk)
+ return;
+
spin_lock_irqsave(&clk_lock, flags);
if ((--clk->enabled == 0) && clk->clk_ops)
clk->clk_ops->disable(clk);
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 */
+ movel #FPUTYPE,%d0
+ movel %d0,m68k_fputype /* Mark FPU type */
+ movel #MACHINE,%d0
+ movel %d0,m68k_machtype /* Mark machine type */
lea init_task,%a2 /* Set "current" init task */
#endif
printk(KERN_INFO "WildFireMod hibernating...\n");
/* Set portE.5 to Digital IO */
- MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2));
+ writew(readw(MCFGPIO_PEPAR) & ~(1 << (5 * 2)), MCFGPIO_PEPAR);
/* Make portE.5 an output */
- MCF5282_GPIO_DDRE |= (1 << 5);
+ writeb(readb(MCFGPIO_PDDR_E) | (1 << 5), MCFGPIO_PDDR_E);
/* Now toggle portE.5 from low to high */
- MCF5282_GPIO_PORTE &= ~(1 << 5);
- MCF5282_GPIO_PORTE |= (1 << 5);
+ writeb(readb(MCFGPIO_PODR_E) & ~(1 << 5), MCFGPIO_PODR_E);
+ writeb(readb(MCFGPIO_PODR_E) | (1 << 5), MCFGPIO_PODR_E);
printk(KERN_EMERG "Failed to hibernate. Halting!\n");
}
#define NAND_FLASH_ADDRESS (0xD0000000)
-int sys_clk_khz = 0;
-int sys_clk_mhz = 0;
-
void wtm_init(void);
void scm_init(void);
void gpio_init(void);
asmlinkage void __init sysinit(void)
{
- sys_clk_khz = clock_pll(0, 0);
- sys_clk_mhz = sys_clk_khz/1000;
-
+ clock_pll(0, 0);
+
wtm_init();
scm_init();
gpio_init();
#include <asm/m54xxgpt.h>
#ifdef CONFIG_MMU
#include <asm/mmu_context.h>
-#include <linux/pfn.h>
#endif
/***************************************************************************/
/***************************************************************************/
-#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 = PFN_DOWN(_ramend - _rambase);
-
- /* page numbers */
- memstart = PAGE_ALIGN(_ramstart);
- min_low_pfn = PFN_DOWN(_rambase);
- start_pfn = PFN_DOWN(memstart);
- max_pfn = max_low_pfn = PFN_DOWN(_ramend);
- 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();
+ cf_bootmem_alloc();
mmu_context_init();
#endif
mach_reset = mcf54xx_reset;
static inline void save_bootinfo(const struct bi_record *bi) {}
#endif
+#ifdef CONFIG_UBOOT
+void process_uboot_commandline(char *commandp, int size);
+#else
+static inline void process_uboot_commandline(char *commandp, int size) {}
+#endif
+
#endif /* __ASSEMBLY__ */
#define CPU_NAME "COLDFIRE(m5441x)"
#define CPU_INSTR_PER_JIFFY 2
#define MCF_BUSCLK (MCF_CLK / 2)
+#define MACHINE MACH_M5441X
+#define FPUTYPE 0
+#define IOMEMBASE 0xe0000000
+#define IOMEMSIZE 0x20000000
#include <asm/m54xxacr.h>
* register region as non-cacheable. And then we map all our RAM as
* cacheable and supervisor access only.
*/
-#define ACR0_MODE (ACR_BA(CONFIG_MBAR)+ACR_ADMSK(0x1000000)+ \
+#define ACR0_MODE (ACR_BA(IOMEMBASE)+ACR_ADMSK(IOMEMSIZE)+ \
ACR_ENABLE+ACR_SUPER+ACR_CM_OFF_PRE+ACR_SP)
#if defined(CONFIG_CACHE_COPYBACK)
#define ACR1_MODE (ACR_BA(CONFIG_RAMBASE)+ACR_ADMSK(CONFIG_RAMSIZE)+ \
#define CPU_NAME "COLDFIRE(m54xx)"
#define CPU_INSTR_PER_JIFFY 2
#define MCF_BUSCLK (MCF_CLK / 2)
+#define MACHINE MACH_M54XX
+#define FPUTYPE FPU_COLDFIRE
+#define IOMEMBASE MCF_MBAR
+#define IOMEMSIZE 0x01000000
#include <asm/m54xxacr.h>
__asm__ __volatile__ ("nop");
}
+void cf_bootmem_alloc(void);
int cf_tlb_miss(struct pt_regs *regs, int write, int dtlb, int extension_word);
#endif
static __inline__ void mcf_setppdata(unsigned int mask, unsigned int bits)
{
- write((readw(MCFSIM_PBDAT) & ~mask) | bits, MCFSIM_PBDAT);
+ writew((readw(MCFSIM_PBDAT) & ~mask) | bits, MCFSIM_PBDAT);
}
#endif
#define MACH_Q40 10
#define MACH_SUN3X 11
#define MACH_M54XX 12
+#define MACH_M5441X 13
/*
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_BOOTINFO_PROC) += bootinfo_proc.o
+obj-$(CONFIG_UBOOT) += uboot.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
}
/* Fill in the fpu structure for a core dump. */
-#ifdef CONFIG_FPU
int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu)
{
- char fpustate[216];
-
if (FPU_IS_EMU) {
int i;
return 1;
}
- /* First dump the fpu context to avoid protocol violation. */
- asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory");
- if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2])
- return 0;
+ if (IS_ENABLED(CONFIG_FPU)) {
+ char fpustate[216];
- if (CPU_IS_COLDFIRE) {
- asm volatile ("fmovel %/fpiar,%0\n\t"
- "fmovel %/fpcr,%1\n\t"
- "fmovel %/fpsr,%2\n\t"
- "fmovemd %/fp0-%/fp7,%3"
- :
- : "m" (fpu->fpcntl[0]),
- "m" (fpu->fpcntl[1]),
- "m" (fpu->fpcntl[2]),
- "m" (fpu->fpregs[0])
- : "memory");
- } else {
- asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0"
- :
- : "m" (fpu->fpcntl[0])
- : "memory");
- asm volatile ("fmovemx %/fp0-%/fp7,%0"
- :
- : "m" (fpu->fpregs[0])
- : "memory");
+ /* First dump the fpu context to avoid protocol violation. */
+ asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory");
+ if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2])
+ return 0;
+
+ if (CPU_IS_COLDFIRE) {
+ asm volatile ("fmovel %/fpiar,%0\n\t"
+ "fmovel %/fpcr,%1\n\t"
+ "fmovel %/fpsr,%2\n\t"
+ "fmovemd %/fp0-%/fp7,%3"
+ :
+ : "m" (fpu->fpcntl[0]),
+ "m" (fpu->fpcntl[1]),
+ "m" (fpu->fpcntl[2]),
+ "m" (fpu->fpregs[0])
+ : "memory");
+ } else {
+ asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0"
+ :
+ : "m" (fpu->fpcntl[0])
+ : "memory");
+ asm volatile ("fmovemx %/fp0-%/fp7,%0"
+ :
+ : "m" (fpu->fpregs[0])
+ : "memory");
+ }
}
return 1;
}
EXPORT_SYMBOL(dump_fpu);
-#endif /* CONFIG_FPU */
unsigned long get_wchan(struct task_struct *p)
{
* We should really do our own FPU check at startup.
* [what do we do with buggy 68LC040s? if we have problems
* with them, we should add a test to check_bugs() below] */
-#ifndef CONFIG_M68KFPU_EMU_ONLY
+#if defined(CONFIG_FPU) && !defined(CONFIG_M68KFPU_EMU_ONLY)
/* clear the fpu if we have one */
if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060|FPU_COLDFIRE)) {
volatile int zero = 0;
strncpy(m68k_command_line, CONFIG_BOOTPARAM_STRING, CL_SIZE);
m68k_command_line[CL_SIZE - 1] = 0;
#endif /* CONFIG_BOOTPARAM */
+ process_uboot_commandline(&m68k_command_line[0], CL_SIZE);
*cmdline_p = m68k_command_line;
memcpy(boot_command_line, *cmdline_p, CL_SIZE);
#endif
#ifdef CONFIG_COLDFIRE
case MACH_M54XX:
+ case MACH_M5441X:
config_BSP(NULL, 0);
break;
#endif
void check_bugs(void)
{
-#ifndef CONFIG_M68KFPU_EMU
+#if defined(CONFIG_FPU) && !defined(CONFIG_M68KFPU_EMU)
if (m68k_fputype == 0) {
pr_emerg("*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
"WHICH IS REQUIRED BY LINUX/M68K ***\n");
#include <linux/rtc.h>
#include <asm/setup.h>
+#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <asm/machdep.h>
#include <asm/pgtable.h>
#define CPU_INSTR_PER_JIFFY 16
#endif
-#if defined(CONFIG_UBOOT)
-/*
- * parse_uboot_commandline
- *
- * Copies u-boot commandline arguments and store them in the proper linux
- * variables.
- *
- * Assumes:
- * _init_sp global contains the address in the stack pointer when the
- * kernel starts (see head.S::_start)
- *
- * U-Boot calling convention:
- * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
- *
- * _init_sp can be parsed as such
- *
- * _init_sp+00 = u-boot cmd after jsr into kernel (skip)
- * _init_sp+04 = &kernel board_info (residual data)
- * _init_sp+08 = &initrd_start
- * _init_sp+12 = &initrd_end
- * _init_sp+16 = &cmd_start
- * _init_sp+20 = &cmd_end
- *
- * This also assumes that the memory locations pointed to are still
- * unmodified. U-boot places them near the end of external SDRAM.
- *
- * Argument(s):
- * commandp = the linux commandline arg container to fill.
- * size = the sizeof commandp.
- *
- * Returns:
- */
-static void __init parse_uboot_commandline(char *commandp, int size)
-{
- extern unsigned long _init_sp;
- unsigned long *sp;
- unsigned long uboot_kbd;
- unsigned long uboot_initrd_start, uboot_initrd_end;
- unsigned long uboot_cmd_start, uboot_cmd_end;
-
-
- sp = (unsigned long *)_init_sp;
- uboot_kbd = sp[1];
- uboot_initrd_start = sp[2];
- uboot_initrd_end = sp[3];
- uboot_cmd_start = sp[4];
- uboot_cmd_end = sp[5];
-
- if (uboot_cmd_start && uboot_cmd_end)
- strncpy(commandp, (const char *)uboot_cmd_start, size);
-#if defined(CONFIG_BLK_DEV_INITRD)
- if (uboot_initrd_start && uboot_initrd_end &&
- (uboot_initrd_end > uboot_initrd_start)) {
- initrd_start = uboot_initrd_start;
- initrd_end = uboot_initrd_end;
- ROOT_DEV = Root_RAM0;
- printk(KERN_INFO "initrd at 0x%lx:0x%lx\n",
- initrd_start, initrd_end);
- }
-#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
-}
-#endif /* #if defined(CONFIG_UBOOT) */
-
void __init setup_arch(char **cmdline_p)
{
int bootmap_size;
command_line[sizeof(command_line) - 1] = 0;
#endif /* CONFIG_BOOTPARAM */
-#if defined(CONFIG_UBOOT)
- /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */
- #if defined(CONFIG_BOOTPARAM)
- /* Add the whitespace separator */
- command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' ';
- /* Parse uboot command line into the rest of the buffer */
- parse_uboot_commandline(
- &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)],
- (sizeof(command_line) -
- (strlen(CONFIG_BOOTPARAM_STRING)+1)));
- /* Only CONFIG_UBOOT defined, create cmdline */
- #else
- parse_uboot_commandline(&command_line[0], sizeof(command_line));
- #endif /* CONFIG_BOOTPARAM */
- command_line[sizeof(command_line) - 1] = 0;
-#endif /* CONFIG_UBOOT */
+ process_uboot_commandline(&command_line[0], sizeof(command_line));
- printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n");
+ pr_info("uClinux with CPU " CPU_NAME "\n");
#ifdef CONFIG_UCDIMM
- printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
+ pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n");
#endif
#ifdef CONFIG_M68VZ328
- printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
+ pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
#endif
#ifdef CONFIG_COLDFIRE
- printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
+ pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
#ifdef CONFIG_M5307
- printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
+ pr_info("Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
#endif
#ifdef CONFIG_ELITE
- printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
+ pr_info("Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
#endif
#endif
- printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
+ pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
- printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n");
+ pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n");
#endif
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
- printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
+ pr_info("PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
#endif
#ifdef CONFIG_DRAGEN2
- printk(KERN_INFO "DragonEngine II board support by Georges Menie\n");
+ pr_info("DragonEngine II board support by Georges Menie\n");
#endif
#ifdef CONFIG_M5235EVB
- printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
+ pr_info("Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
#endif
pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
--- /dev/null
+/*
+ * uboot.c -- uboot arguments support
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/console.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/bootmem.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/initrd.h>
+#include <linux/root_dev.h>
+#include <linux/rtc.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/machdep.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+
+/*
+ * parse_uboot_commandline
+ *
+ * Copies u-boot commandline arguments and store them in the proper linux
+ * variables.
+ *
+ * Assumes:
+ * _init_sp global contains the address in the stack pointer when the
+ * kernel starts (see head.S::_start)
+ *
+ * U-Boot calling convention:
+ * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
+ *
+ * _init_sp can be parsed as such
+ *
+ * _init_sp+00 = u-boot cmd after jsr into kernel (skip)
+ * _init_sp+04 = &kernel board_info (residual data)
+ * _init_sp+08 = &initrd_start
+ * _init_sp+12 = &initrd_end
+ * _init_sp+16 = &cmd_start
+ * _init_sp+20 = &cmd_end
+ *
+ * This also assumes that the memory locations pointed to are still
+ * unmodified. U-boot places them near the end of external SDRAM.
+ *
+ * Argument(s):
+ * commandp = the linux commandline arg container to fill.
+ * size = the sizeof commandp.
+ *
+ * Returns:
+ */
+static void __init parse_uboot_commandline(char *commandp, int size)
+{
+ extern unsigned long _init_sp;
+ unsigned long *sp;
+ unsigned long uboot_kbd;
+ unsigned long uboot_initrd_start, uboot_initrd_end;
+ unsigned long uboot_cmd_start, uboot_cmd_end;
+
+ sp = (unsigned long *)_init_sp;
+ uboot_kbd = sp[1];
+ uboot_initrd_start = sp[2];
+ uboot_initrd_end = sp[3];
+ uboot_cmd_start = sp[4];
+ uboot_cmd_end = sp[5];
+
+ if (uboot_cmd_start && uboot_cmd_end)
+ strncpy(commandp, (const char *)uboot_cmd_start, size);
+#if defined(CONFIG_BLK_DEV_INITRD)
+ if (uboot_initrd_start && uboot_initrd_end &&
+ (uboot_initrd_end > uboot_initrd_start)) {
+ initrd_start = uboot_initrd_start;
+ initrd_end = uboot_initrd_end;
+ ROOT_DEV = Root_RAM0;
+ printk(KERN_INFO "initrd at 0x%lx:0x%lx\n",
+ initrd_start, initrd_end);
+ }
+#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
+}
+
+__init void process_uboot_commandline(char *commandp, int size)
+{
+ int len, n;
+
+ n = strnlen(commandp, size);
+ commandp += n;
+ len = size - n;
+ if (len) {
+ /* Add the whitespace separator */
+ *commandp++ = ' ';
+ len--;
+ }
+
+ parse_uboot_commandline(commandp, len);
+ commandp[size - 1] = 0;
+}
unsigned long context_map[LAST_CONTEXT / BITS_PER_LONG + 1];
atomic_t nr_free_contexts;
struct mm_struct *context_mm[LAST_CONTEXT+1];
-extern unsigned long num_pages;
+unsigned long num_pages;
/*
* ColdFire paging_init derived from sun3.
return 0;
}
+void __init cf_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 = PFN_DOWN(_ramend - _rambase);
+
+ /* page numbers */
+ memstart = PAGE_ALIGN(_ramstart);
+ min_low_pfn = PFN_DOWN(_rambase);
+ start_pfn = PFN_DOWN(memstart);
+ max_pfn = max_low_pfn = PFN_DOWN(_ramend);
+ 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);
+}
+
/*
* Initialize the context management stuff.
* The following was taken from arch/ppc/mmu_context.c
projects / cascardo / linux.git / commitdiff