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-rw-r--r--arch/arm/lib/Makefile5
-rw-r--r--arch/arm/lib/board.c259
-rw-r--r--arch/arm/lib/cache-cp15.c22
-rw-r--r--arch/arm/lib/cache-pl310.c115
-rw-r--r--arch/arm/lib/cache.c20
5 files changed, 275 insertions, 146 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 03b1b5e4af..300c8fab2d 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(ARCH).o
LIBGCC = $(obj)libgcc.o
+ifndef CONFIG_SPL_BUILD
GLSOBJS += _ashldi3.o
GLSOBJS += _ashrdi3.o
GLSOBJS += _divsi3.o
@@ -39,13 +40,13 @@ GLCOBJS += div0.o
COBJS-y += board.o
COBJS-y += bootm.o
COBJS-y += cache.o
-ifndef CONFIG_SYS_NO_CP15_CACHE
COBJS-y += cache-cp15.o
-endif
+COBJS-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
COBJS-y += interrupts.o
COBJS-y += reset.o
SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
+endif
SRCS := $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
$(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c
index 1a784a1e19..14a56f6f0a 100644
--- a/arch/arm/lib/board.c
+++ b/arch/arm/lib/board.c
@@ -42,7 +42,6 @@
#include <command.h>
#include <malloc.h>
#include <stdio_dev.h>
-#include <timestamp.h>
#include <version.h>
#include <net.h>
#include <serial.h>
@@ -70,13 +69,6 @@ extern int AT91F_DataflashInit(void);
extern void dataflash_print_info(void);
#endif
-#ifndef CONFIG_IDENT_STRING
-#define CONFIG_IDENT_STRING ""
-#endif
-
-const char version_string[] =
- U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"CONFIG_IDENT_STRING;
-
#ifdef CONFIG_DRIVER_RTL8019
extern void rtl8019_get_enetaddr (uchar * addr);
#endif
@@ -92,26 +84,28 @@ extern void rtl8019_get_enetaddr (uchar * addr);
************************************************************************
* May be supplied by boards if desired
*/
-void inline __coloured_LED_init (void) {}
-void coloured_LED_init (void) __attribute__((weak, alias("__coloured_LED_init")));
-void inline __red_LED_on (void) {}
-void red_LED_on (void) __attribute__((weak, alias("__red_LED_on")));
-void inline __red_LED_off(void) {}
+inline void __coloured_LED_init(void) {}
+void coloured_LED_init(void)
+ __attribute__((weak, alias("__coloured_LED_init")));
+inline void __red_LED_on(void) {}
+void red_LED_on(void) __attribute__((weak, alias("__red_LED_on")));
+inline void __red_LED_off(void) {}
void red_LED_off(void) __attribute__((weak, alias("__red_LED_off")));
-void inline __green_LED_on(void) {}
+inline void __green_LED_on(void) {}
void green_LED_on(void) __attribute__((weak, alias("__green_LED_on")));
-void inline __green_LED_off(void) {}
+inline void __green_LED_off(void) {}
void green_LED_off(void) __attribute__((weak, alias("__green_LED_off")));
-void inline __yellow_LED_on(void) {}
+inline void __yellow_LED_on(void) {}
void yellow_LED_on(void) __attribute__((weak, alias("__yellow_LED_on")));
-void inline __yellow_LED_off(void) {}
+inline void __yellow_LED_off(void) {}
void yellow_LED_off(void) __attribute__((weak, alias("__yellow_LED_off")));
-void inline __blue_LED_on(void) {}
+inline void __blue_LED_on(void) {}
void blue_LED_on(void) __attribute__((weak, alias("__blue_LED_on")));
-void inline __blue_LED_off(void) {}
+inline void __blue_LED_off(void) {}
void blue_LED_off(void) __attribute__((weak, alias("__blue_LED_off")));
-/************************************************************************
+/*
+ ************************************************************************
* Init Utilities *
************************************************************************
* Some of this code should be moved into the core functions,
@@ -122,30 +116,30 @@ void blue_LED_off(void) __attribute__((weak, alias("__blue_LED_off")));
#if defined(CONFIG_ARM_DCC) && !defined(CONFIG_BAUDRATE)
#define CONFIG_BAUDRATE 115200
#endif
-static int init_baudrate (void)
+static int init_baudrate(void)
{
char tmp[64]; /* long enough for environment variables */
- int i = getenv_f("baudrate", tmp, sizeof (tmp));
+ int i = getenv_f("baudrate", tmp, sizeof(tmp));
gd->baudrate = (i > 0)
- ? (int) simple_strtoul (tmp, NULL, 10)
+ ? (int) simple_strtoul(tmp, NULL, 10)
: CONFIG_BAUDRATE;
return (0);
}
-static int display_banner (void)
+static int display_banner(void)
{
- printf ("\n\n%s\n\n", version_string);
- debug ("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
+ printf("\n\n%s\n\n", version_string);
+ debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
_TEXT_BASE,
- _bss_start_ofs+_TEXT_BASE, _bss_end_ofs+_TEXT_BASE);
+ _bss_start_ofs + _TEXT_BASE, _bss_end_ofs + _TEXT_BASE);
#ifdef CONFIG_MODEM_SUPPORT
- debug ("Modem Support enabled\n");
+ debug("Modem Support enabled\n");
#endif
#ifdef CONFIG_USE_IRQ
- debug ("IRQ Stack: %08lx\n", IRQ_STACK_START);
- debug ("FIQ Stack: %08lx\n", FIQ_STACK_START);
+ debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
+ debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
#endif
return (0);
@@ -158,23 +152,23 @@ static int display_banner (void)
* gives a simple yet clear indication which part of the
* initialization if failing.
*/
-static int display_dram_config (void)
+static int display_dram_config(void)
{
int i;
#ifdef DEBUG
- puts ("RAM Configuration:\n");
+ puts("RAM Configuration:\n");
- for(i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
- printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
- print_size (gd->bd->bi_dram[i].size, "\n");
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
+ print_size(gd->bd->bi_dram[i].size, "\n");
}
#else
ulong size = 0;
- for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
size += gd->bd->bi_dram[i].size;
- }
+
puts("DRAM: ");
print_size(size, "\n");
#endif
@@ -183,11 +177,11 @@ static int display_dram_config (void)
}
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
-static int init_func_i2c (void)
+static int init_func_i2c(void)
{
- puts ("I2C: ");
- i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
- puts ("ready\n");
+ puts("I2C: ");
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ puts("ready\n");
return (0);
}
#endif
@@ -226,7 +220,7 @@ static int arm_pci_init(void)
*/
typedef int (init_fnc_t) (void);
-int print_cpuinfo (void);
+int print_cpuinfo(void);
void __dram_init_banksize(void)
{
@@ -262,13 +256,10 @@ init_fnc_t *init_sequence[] = {
init_func_i2c,
#endif
dram_init, /* configure available RAM banks */
-#if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI)
- arm_pci_init,
-#endif
NULL,
};
-void board_init_f (ulong bootflag)
+void board_init_f(ulong bootflag)
{
bd_t *bd;
init_fnc_t **init_fnc_ptr;
@@ -280,21 +271,25 @@ void board_init_f (ulong bootflag)
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
- memset ((void*)gd, 0, sizeof (gd_t));
+ memset((void *)gd, 0, sizeof(gd_t));
gd->mon_len = _bss_end_ofs;
+#ifdef CONFIG_MACH_TYPE
+ gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
+#endif
+
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
if ((*init_fnc_ptr)() != 0) {
hang ();
}
}
- debug ("monitor len: %08lX\n", gd->mon_len);
+ debug("monitor len: %08lX\n", gd->mon_len);
/*
* Ram is setup, size stored in gd !!
*/
- debug ("ramsize: %08lX\n", gd->ram_size);
+ debug("ramsize: %08lX\n", gd->ram_size);
#if defined(CONFIG_SYS_MEM_TOP_HIDE)
/*
* Subtract specified amount of memory to hide so that it won't
@@ -315,7 +310,8 @@ void board_init_f (ulong bootflag)
#ifndef CONFIG_ALT_LB_ADDR
/* reserve kernel log buffer */
addr -= (LOGBUFF_RESERVE);
- debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
+ debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
+ addr);
#endif
#endif
@@ -323,13 +319,14 @@ void board_init_f (ulong bootflag)
/*
* reserve protected RAM
*/
- i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
- reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
+ i = getenv_r("pram", (char *)tmp, sizeof(tmp));
+ reg = (i > 0) ? simple_strtoul((const char *)tmp, NULL, 10) :
+ CONFIG_PRAM;
addr -= (reg << 10); /* size is in kB */
- debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
+ debug("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
#endif /* CONFIG_PRAM */
-#if !(defined(CONFIG_SYS_NO_ICACHE) && defined(CONFIG_SYS_NO_DCACHE))
+#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
/* reserve TLB table */
addr -= (4096 * 4);
@@ -337,30 +334,19 @@ void board_init_f (ulong bootflag)
addr &= ~(0x10000 - 1);
gd->tlb_addr = addr;
- debug ("TLB table at: %08lx\n", addr);
+ debug("TLB table at: %08lx\n", addr);
#endif
/* round down to next 4 kB limit */
addr &= ~(4096 - 1);
- debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
-
-#ifdef CONFIG_VFD
-# ifndef PAGE_SIZE
-# define PAGE_SIZE 4096
-# endif
- /*
- * reserve memory for VFD display (always full pages)
- */
- addr -= vfd_setmem (addr);
- gd->fb_base = addr;
-#endif /* CONFIG_VFD */
+ debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
#ifdef CONFIG_LCD
#ifdef CONFIG_FB_ADDR
gd->fb_base = CONFIG_FB_ADDR;
#else
/* reserve memory for LCD display (always full pages) */
- addr = lcd_setmem (addr);
+ addr = lcd_setmem(addr);
gd->fb_base = addr;
#endif /* CONFIG_FB_ADDR */
#endif /* CONFIG_LCD */
@@ -372,14 +358,14 @@ void board_init_f (ulong bootflag)
addr -= gd->mon_len;
addr &= ~(4096 - 1);
- debug ("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
+ debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
-#ifndef CONFIG_PRELOADER
+#ifndef CONFIG_SPL_BUILD
/*
* reserve memory for malloc() arena
*/
addr_sp = addr - TOTAL_MALLOC_LEN;
- debug ("Reserving %dk for malloc() at: %08lx\n",
+ debug("Reserving %dk for malloc() at: %08lx\n",
TOTAL_MALLOC_LEN >> 10, addr_sp);
/*
* (permanently) allocate a Board Info struct
@@ -388,18 +374,18 @@ void board_init_f (ulong bootflag)
addr_sp -= sizeof (bd_t);
bd = (bd_t *) addr_sp;
gd->bd = bd;
- debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
+ debug("Reserving %zu Bytes for Board Info at: %08lx\n",
sizeof (bd_t), addr_sp);
addr_sp -= sizeof (gd_t);
id = (gd_t *) addr_sp;
- debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
+ debug("Reserving %zu Bytes for Global Data at: %08lx\n",
sizeof (gd_t), addr_sp);
/* setup stackpointer for exeptions */
gd->irq_sp = addr_sp;
#ifdef CONFIG_USE_IRQ
addr_sp -= (CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ);
- debug ("Reserving %zu Bytes for IRQ stack at: %08lx\n",
+ debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
#endif
/* leave 3 words for abort-stack */
@@ -412,11 +398,11 @@ void board_init_f (ulong bootflag)
gd->irq_sp = addr_sp;
#endif
- debug ("New Stack Pointer is: %08lx\n", addr_sp);
+ debug("New Stack Pointer is: %08lx\n", addr_sp);
#ifdef CONFIG_POST
post_bootmode_init();
- post_run (NULL, POST_ROM | post_bootmode_get(0));
+ post_run(NULL, POST_ROM | post_bootmode_get(0));
#endif
gd->bd->bi_baudrate = gd->baudrate;
@@ -427,10 +413,10 @@ void board_init_f (ulong bootflag)
gd->relocaddr = addr;
gd->start_addr_sp = addr_sp;
gd->reloc_off = addr - _TEXT_BASE;
- debug ("relocation Offset is: %08lx\n", gd->reloc_off);
- memcpy (id, (void *)gd, sizeof (gd_t));
+ debug("relocation Offset is: %08lx\n", gd->reloc_off);
+ memcpy(id, (void *)gd, sizeof(gd_t));
- relocate_code (addr_sp, id, addr);
+ relocate_code(addr_sp, id, addr);
/* NOTREACHED - relocate_code() does not return */
}
@@ -439,7 +425,8 @@ void board_init_f (ulong bootflag)
static char *failed = "*** failed ***\n";
#endif
-/************************************************************************
+/*
+ ************************************************************************
*
* This is the next part if the initialization sequence: we are now
* running from RAM and have a "normal" C environment, i. e. global
@@ -449,7 +436,7 @@ static char *failed = "*** failed ***\n";
************************************************************************
*/
-void board_init_r (gd_t *id, ulong dest_addr)
+void board_init_r(gd_t *id, ulong dest_addr)
{
char *s;
bd_t *bd;
@@ -464,20 +451,26 @@ void board_init_r (gd_t *id, ulong dest_addr)
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
monitor_flash_len = _end_ofs;
- debug ("monitor flash len: %08lX\n", monitor_flash_len);
+ /*
+ * Enable D$:
+ * I$, if needed, must be already enabled in start.S
+ */
+ dcache_enable();
+
+ debug("monitor flash len: %08lX\n", monitor_flash_len);
board_init(); /* Setup chipselects */
#ifdef CONFIG_SERIAL_MULTI
serial_initialize();
#endif
- debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
+ debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
#ifdef CONFIG_LOGBUFFER
- logbuff_init_ptrs ();
+ logbuff_init_ptrs();
#endif
#ifdef CONFIG_POST
- post_output_backlog ();
+ post_output_backlog();
#endif
/* The Malloc area is immediately below the monitor copy in DRAM */
@@ -485,34 +478,35 @@ void board_init_r (gd_t *id, ulong dest_addr)
mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
#if !defined(CONFIG_SYS_NO_FLASH)
- puts ("Flash: ");
+ puts("Flash: ");
- if ((flash_size = flash_init ()) > 0) {
+ flash_size = flash_init();
+ if (flash_size > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
- print_size (flash_size, "");
+ print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
- s = getenv ("flashchecksum");
+ s = getenv("flashchecksum");
if (s && (*s == 'y')) {
- printf (" CRC: %08X",
- crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
- );
+ printf(" CRC: %08X", crc32(0,
+ (const unsigned char *) CONFIG_SYS_FLASH_BASE,
+ flash_size));
}
- putc ('\n');
+ putc('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
- print_size (flash_size, "\n");
+ print_size(flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
- puts (failed);
- hang ();
+ puts(failed);
+ hang();
}
#endif
#if defined(CONFIG_CMD_NAND)
- puts ("NAND: ");
+ puts("NAND: ");
nand_init(); /* go init the NAND */
#endif
@@ -531,45 +525,44 @@ void board_init_r (gd_t *id, ulong dest_addr)
#endif
/* initialize environment */
- env_relocate ();
+ env_relocate();
-#ifdef CONFIG_VFD
- /* must do this after the framebuffer is allocated */
- drv_vfd_init();
-#endif /* CONFIG_VFD */
+#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
+ arm_pci_init();
+#endif
/* IP Address */
- gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+ gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
- stdio_init (); /* get the devices list going. */
+ stdio_init(); /* get the devices list going. */
- jumptable_init ();
+ jumptable_init();
#if defined(CONFIG_API)
/* Initialize API */
- api_init ();
+ api_init();
#endif
- console_init_r (); /* fully init console as a device */
+ console_init_r(); /* fully init console as a device */
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
- arch_misc_init ();
+ arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
- misc_init_r ();
+ misc_init_r();
#endif
/* set up exceptions */
- interrupt_init ();
+ interrupt_init();
/* enable exceptions */
- enable_interrupts ();
+ enable_interrupts();
/* Perform network card initialisation if necessary */
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
/* XXX: this needs to be moved to board init */
- if (getenv ("ethaddr")) {
+ if (getenv("ethaddr")) {
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
smc_set_mac_addr(enetaddr);
@@ -577,17 +570,17 @@ void board_init_r (gd_t *id, ulong dest_addr)
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
/* Initialize from environment */
- if ((s = getenv ("loadaddr")) != NULL) {
- load_addr = simple_strtoul (s, NULL, 16);
- }
+ s = getenv("loadaddr");
+ if (s != NULL)
+ load_addr = simple_strtoul(s, NULL, 16);
#if defined(CONFIG_CMD_NET)
- if ((s = getenv ("bootfile")) != NULL) {
- copy_filename (BootFile, s, sizeof (BootFile));
- }
+ s = getenv("bootfile");
+ if (s != NULL)
+ copy_filename(BootFile, s, sizeof(BootFile));
#endif
#ifdef BOARD_LATE_INIT
- board_late_init ();
+ board_late_init();
#endif
#ifdef CONFIG_BITBANGMII
@@ -595,17 +588,17 @@ void board_init_r (gd_t *id, ulong dest_addr)
#endif
#if defined(CONFIG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
- puts ("Net: ");
+ puts("Net: ");
#endif
eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
- debug ("Reset Ethernet PHY\n");
+ debug("Reset Ethernet PHY\n");
reset_phy();
#endif
#endif
#ifdef CONFIG_POST
- post_run (NULL, POST_RAM | post_bootmode_get(0));
+ post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
@@ -619,35 +612,35 @@ void board_init_r (gd_t *id, ulong dest_addr)
#ifdef CONFIG_PRAM
char *s;
- if ((s = getenv ("pram")) != NULL) {
- pram = simple_strtoul (s, NULL, 10);
- } else {
+ s = getenv("pram");
+ if (s != NULL)
+ pram = simple_strtoul(s, NULL, 10);
+ else
pram = CONFIG_PRAM;
- }
#else
- pram=0;
+ pram = 0;
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
/* Also take the logbuffer into account (pram is in kB) */
- pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
+ pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
- sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
- setenv ("mem", (char *)memsz);
+ sprintf((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
+ setenv("mem", (char *)memsz);
}
#endif
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
- main_loop ();
+ main_loop();
}
/* NOTREACHED - no way out of command loop except booting */
}
-void hang (void)
+void hang(void)
{
- puts ("### ERROR ### Please RESET the board ###\n");
+ puts("### ERROR ### Please RESET the board ###\n");
for (;;);
}
diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
index d9175f0583..e6c3eae6f9 100644
--- a/arch/arm/lib/cache-cp15.c
+++ b/arch/arm/lib/cache-cp15.c
@@ -24,7 +24,7 @@
#include <common.h>
#include <asm/system.h>
-#if !(defined(CONFIG_SYS_NO_ICACHE) && defined(CONFIG_SYS_NO_DCACHE))
+#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
#if defined(CONFIG_SYS_ARM_CACHE_WRITETHROUGH)
#define CACHE_SETUP 0x1a
@@ -34,6 +34,12 @@
DECLARE_GLOBAL_DATA_PTR;
+void __arm_init_before_mmu(void)
+{
+}
+void arm_init_before_mmu(void)
+ __attribute__((weak, alias("__arm_init_before_mmu")));
+
static void cp_delay (void)
{
volatile int i;
@@ -65,6 +71,7 @@ static inline void mmu_setup(void)
int i;
u32 reg;
+ arm_init_before_mmu();
/* Set up an identity-mapping for all 4GB, rw for everyone */
for (i = 0; i < 4096; i++)
page_table[i] = i << 20 | (3 << 10) | 0x12;
@@ -85,13 +92,18 @@ static inline void mmu_setup(void)
set_cr(reg | CR_M);
}
+static int mmu_enabled(void)
+{
+ return get_cr() & CR_M;
+}
+
/* cache_bit must be either CR_I or CR_C */
static void cache_enable(uint32_t cache_bit)
{
uint32_t reg;
/* The data cache is not active unless the mmu is enabled too */
- if (cache_bit == CR_C)
+ if ((cache_bit == CR_C) && !mmu_enabled())
mmu_setup();
reg = get_cr(); /* get control reg. */
cp_delay();
@@ -110,7 +122,7 @@ static void cache_disable(uint32_t cache_bit)
return;
/* if disabling data cache, disable mmu too */
cache_bit |= CR_M;
- flush_cache(0, ~0);
+ flush_dcache_all();
}
reg = get_cr();
cp_delay();
@@ -118,7 +130,7 @@ static void cache_disable(uint32_t cache_bit)
}
#endif
-#ifdef CONFIG_SYS_NO_ICACHE
+#ifdef CONFIG_SYS_ICACHE_OFF
void icache_enable (void)
{
return;
@@ -150,7 +162,7 @@ int icache_status(void)
}
#endif
-#ifdef CONFIG_SYS_NO_DCACHE
+#ifdef CONFIG_SYS_DCACHE_OFF
void dcache_enable (void)
{
return;
diff --git a/arch/arm/lib/cache-pl310.c b/arch/arm/lib/cache-pl310.c
new file mode 100644
index 0000000000..36c629ce51
--- /dev/null
+++ b/arch/arm/lib/cache-pl310.c
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Aneesh V <aneesh@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/armv7.h>
+#include <asm/pl310.h>
+#include <config.h>
+
+struct pl310_regs *const pl310 = (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+
+static void pl310_cache_sync(void)
+{
+ writel(0, &pl310->pl310_cache_sync);
+}
+
+static void pl310_background_op_all_ways(u32 *op_reg)
+{
+ u32 assoc_16, associativity, way_mask;
+
+ assoc_16 = readl(&pl310->pl310_aux_ctrl) &
+ PL310_AUX_CTRL_ASSOCIATIVITY_MASK;
+ if (assoc_16)
+ associativity = 16;
+ else
+ associativity = 8;
+
+ way_mask = (1 << associativity) - 1;
+ /* Invalidate all ways */
+ writel(way_mask, op_reg);
+ /* Wait for all ways to be invalidated */
+ while (readl(op_reg) && way_mask)
+ ;
+ pl310_cache_sync();
+}
+
+void v7_outer_cache_inval_all(void)
+{
+ pl310_background_op_all_ways(&pl310->pl310_inv_way);
+}
+
+void v7_outer_cache_flush_all(void)
+{
+ pl310_background_op_all_ways(&pl310->pl310_clean_inv_way);
+}
+
+/* Flush(clean invalidate) memory from start to stop-1 */
+void v7_outer_cache_flush_range(u32 start, u32 stop)
+{
+ /* PL310 currently supports only 32 bytes cache line */
+ u32 pa, line_size = 32;
+
+ /*
+ * Align to the beginning of cache-line - this ensures that
+ * the first 5 bits are 0 as required by PL310 TRM
+ */
+ start &= ~(line_size - 1);
+
+ for (pa = start; pa < stop; pa = pa + line_size)
+ writel(pa, &pl310->pl310_clean_inv_line_pa);
+
+ pl310_cache_sync();
+}
+
+/* invalidate memory from start to stop-1 */
+void v7_outer_cache_inval_range(u32 start, u32 stop)
+{
+ /* PL310 currently supports only 32 bytes cache line */
+ u32 pa, line_size = 32;
+
+ /*
+ * If start address is not aligned to cache-line flush the first
+ * line to prevent affecting somebody else's buffer
+ */
+ if (start & (line_size - 1)) {
+ v7_outer_cache_flush_range(start, start + 1);
+ /* move to next cache line */
+ start = (start + line_size - 1) & ~(line_size - 1);
+ }
+
+ /*
+ * If stop address is not aligned to cache-line flush the last
+ * line to prevent affecting somebody else's buffer
+ */
+ if (stop & (line_size - 1)) {
+ v7_outer_cache_flush_range(stop, stop + 1);
+ /* align to the beginning of this cache line */
+ stop &= ~(line_size - 1);
+ }
+
+ for (pa = start; pa < stop; pa = pa + line_size)
+ writel(pa, &pl310->pl310_inv_line_pa);
+
+ pl310_cache_sync();
+}
diff --git a/arch/arm/lib/cache.c b/arch/arm/lib/cache.c
index 30686fe69b..92b61a2653 100644
--- a/arch/arm/lib/cache.c
+++ b/arch/arm/lib/cache.c
@@ -25,7 +25,7 @@
#include <common.h>
-void flush_cache (unsigned long dummy1, unsigned long dummy2)
+void __flush_cache(unsigned long start, unsigned long size)
{
#if defined(CONFIG_OMAP2420) || defined(CONFIG_ARM1136)
void arm1136_cache_flush(void);
@@ -38,10 +38,18 @@ void flush_cache (unsigned long dummy1, unsigned long dummy2)
/* disable write buffer as well (page 2-22) */
asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0));
#endif
-#ifdef CONFIG_OMAP34XX
- void v7_flush_cache_all(void);
-
- v7_flush_cache_all();
-#endif
return;
}
+void flush_cache(unsigned long start, unsigned long size)
+ __attribute__((weak, alias("__flush_cache")));
+
+/*
+ * Default implementation:
+ * do a range flush for the entire range
+ */
+void __flush_dcache_all(void)
+{
+ flush_cache(0, ~0);
+}
+void flush_dcache_all(void)
+ __attribute__((weak, alias("__flush_dcache_all")));
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-01 09:05:24 +0000