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Diffstat (limited to 'arch/powerpc/cpu/mpc8xx/cpu.c')
-rw-r--r--arch/powerpc/cpu/mpc8xx/cpu.c123
1 files changed, 63 insertions, 60 deletions
diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c
index 28cc182957..5cfc8c189c 100644
--- a/arch/powerpc/cpu/mpc8xx/cpu.c
+++ b/arch/powerpc/cpu/mpc8xx/cpu.c
@@ -37,7 +37,7 @@ DECLARE_GLOBAL_DATA_PTR;
static char *cpu_warning = "\n " \
"*** Warning: CPU Core has Silicon Bugs -- Check the Errata ***";
-static int check_CPU (long clock, uint pvr, uint immr)
+static int check_CPU(long clock, uint pvr, uint immr)
{
char *id_str =
NULL;
@@ -73,22 +73,25 @@ static int check_CPU (long clock, uint pvr, uint immr)
id_str =
"PC866x"; /* Unknown chip from MPC866 family */
break;
- case 0x09000000: pre = 'M'; mid = suf = ""; m = 1;
+ case 0x09000000:
+ pre = 'M'; mid = suf = ""; m = 1;
if (id_str == NULL)
id_str = "PC885"; /* 870/875/880/885 */
break;
- default: suf = NULL; break;
+ default:
+ suf = NULL;
+ break;
}
if (id_str == NULL)
id_str = "PC86x"; /* Unknown 86x chip */
if (suf)
- printf ("%c%s%sZPnn%s", pre, id_str, mid, suf);
+ printf("%c%s%sZPnn%s", pre, id_str, mid, suf);
else
- printf ("unknown M%s (0x%08x)", id_str, k);
+ printf("unknown M%s (0x%08x)", id_str, k);
- printf (" at %s MHz: ", strmhz (buf, clock));
+ printf(" at %s MHz: ", strmhz(buf, clock));
print_size(checkicache(), " I-Cache ");
print_size(checkdcache(), " D-Cache");
@@ -97,64 +100,63 @@ static int check_CPU (long clock, uint pvr, uint immr)
out_be32(&immap->im_cpm.cp_fec.fec_addr_low, 0x12345678);
if (in_be32(&immap->im_cpm.cp_fec.fec_addr_low) == 0x12345678)
- printf (" FEC present");
+ printf(" FEC present");
- if (!m) {
- puts (cpu_warning);
- }
+ if (!m)
+ puts(cpu_warning);
- putc ('\n');
+ putc('\n');
return 0;
}
/* ------------------------------------------------------------------------- */
-int checkcpu (void)
+int checkcpu(void)
{
ulong clock = gd->cpu_clk;
- uint immr = get_immr (0); /* Return full IMMR contents */
- uint pvr = get_pvr ();
+ uint immr = get_immr(0); /* Return full IMMR contents */
+ uint pvr = get_pvr();
- puts ("CPU: ");
+ puts("CPU: ");
- return check_CPU (clock, pvr, immr);
+ return check_CPU(clock, pvr, immr);
}
/* ------------------------------------------------------------------------- */
/* L1 i-cache */
-int checkicache (void)
+int checkicache(void)
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
memctl8xx_t __iomem *memctl = &immap->im_memctl;
- u32 cacheon = rd_ic_cst () & IDC_ENABLED;
+ u32 cacheon = rd_ic_cst() & IDC_ENABLED;
/* probe in flash memoryarea */
u32 k = in_be32(&memctl->memc_br0) & ~0x00007fff;
u32 m;
u32 lines = -1;
- wr_ic_cst (IDC_UNALL);
- wr_ic_cst (IDC_INVALL);
- wr_ic_cst (IDC_DISABLE);
+ wr_ic_cst(IDC_UNALL);
+ wr_ic_cst(IDC_INVALL);
+ wr_ic_cst(IDC_DISABLE);
__asm__ volatile ("isync");
- while (!((m = rd_ic_cst ()) & IDC_CERR2)) {
- wr_ic_adr (k);
- wr_ic_cst (IDC_LDLCK);
+ while (!((m = rd_ic_cst()) & IDC_CERR2)) {
+ wr_ic_adr(k);
+ wr_ic_cst(IDC_LDLCK);
__asm__ volatile ("isync");
lines++;
- k += 0x10; /* the number of bytes in a cacheline */
+ k += 0x10; /* the number of bytes in a cacheline */
}
- wr_ic_cst (IDC_UNALL);
- wr_ic_cst (IDC_INVALL);
+ wr_ic_cst(IDC_UNALL);
+ wr_ic_cst(IDC_INVALL);
if (cacheon)
- wr_ic_cst (IDC_ENABLE);
+ wr_ic_cst(IDC_ENABLE);
else
- wr_ic_cst (IDC_DISABLE);
+ wr_ic_cst(IDC_DISABLE);
__asm__ volatile ("isync");
@@ -165,41 +167,41 @@ int checkicache (void)
/* L1 d-cache */
/* call with cache disabled */
-int checkdcache (void)
+int checkdcache(void)
{
immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
memctl8xx_t __iomem *memctl = &immap->im_memctl;
- u32 cacheon = rd_dc_cst () & IDC_ENABLED;
+ u32 cacheon = rd_dc_cst() & IDC_ENABLED;
/* probe in flash memoryarea */
u32 k = in_be32(&memctl->memc_br0) & ~0x00007fff;
u32 m;
u32 lines = -1;
- wr_dc_cst (IDC_UNALL);
- wr_dc_cst (IDC_INVALL);
- wr_dc_cst (IDC_DISABLE);
+ wr_dc_cst(IDC_UNALL);
+ wr_dc_cst(IDC_INVALL);
+ wr_dc_cst(IDC_DISABLE);
- while (!((m = rd_dc_cst ()) & IDC_CERR2)) {
- wr_dc_adr (k);
- wr_dc_cst (IDC_LDLCK);
+ while (!((m = rd_dc_cst()) & IDC_CERR2)) {
+ wr_dc_adr(k);
+ wr_dc_cst(IDC_LDLCK);
lines++;
k += 0x10; /* the number of bytes in a cacheline */
}
- wr_dc_cst (IDC_UNALL);
- wr_dc_cst (IDC_INVALL);
+ wr_dc_cst(IDC_UNALL);
+ wr_dc_cst(IDC_INVALL);
if (cacheon)
- wr_dc_cst (IDC_ENABLE);
+ wr_dc_cst(IDC_ENABLE);
else
- wr_dc_cst (IDC_DISABLE);
+ wr_dc_cst(IDC_DISABLE);
return lines << 4;
};
/* ------------------------------------------------------------------------- */
-void upmconfig (uint upm, uint * table, uint size)
+void upmconfig(uint upm, uint *table, uint size)
{
uint i;
uint addr = 0;
@@ -215,7 +217,7 @@ void upmconfig (uint upm, uint * table, uint size)
/* ------------------------------------------------------------------------- */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong msr, addr;
@@ -226,10 +228,10 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
/* Interrupts and MMU off */
__asm__ volatile ("mtspr 81, 0");
- __asm__ volatile ("mfmsr %0":"=r" (msr));
+ __asm__ volatile ("mfmsr %0" : "=r" (msr));
msr &= ~0x1030;
- __asm__ volatile ("mtmsr %0"::"r" (msr));
+ __asm__ volatile ("mtmsr %0" : : "r" (msr));
/*
* Trying to execute the next instruction at a non-existing address
@@ -239,14 +241,15 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
addr = CONFIG_SYS_RESET_ADDRESS;
#else
/*
- * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address, CONFIG_SYS_MONITOR_BASE
- * - sizeof (ulong) is usually a valid address. Better pick an address
- * known to be invalid on your system and assign it to CONFIG_SYS_RESET_ADDRESS.
+ * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address,
+ * CONFIG_SYS_MONITOR_BASE - sizeof (ulong) is usually a valid address.
+ * Better pick an address known to be invalid on your system and assign
+ * it to CONFIG_SYS_RESET_ADDRESS.
* "(ulong)-1" used to be a good choice for many systems...
*/
- addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong);
+ addr = CONFIG_SYS_MONITOR_BASE - sizeof(ulong);
#endif
- ((void (*)(void)) addr) ();
+ ((void (*)(void)) addr)();
return 1;
}
@@ -257,14 +260,14 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
*
* See sections 14.2 and 14.6 of the User's Manual
*/
-unsigned long get_tbclk (void)
+unsigned long get_tbclk(void)
{
- uint immr = get_immr (0); /* Return full IMMR contents */
+ uint immr = get_immr(0); /* Return full IMMR contents */
immap_t __iomem *immap = (immap_t __iomem *)(immr & 0xFFFF0000);
ulong oscclk, factor, pll;
if (in_be32(&immap->im_clkrst.car_sccr) & SCCR_TBS)
- return (gd->cpu_clk / 16);
+ return gd->cpu_clk / 16;
pll = in_be32(&immap->im_clkrst.car_plprcr);
@@ -281,28 +284,28 @@ unsigned long get_tbclk (void)
* (PDF + 1) * 2^S
*
*/
- factor = (PLPRCR_val(MFI) + PLPRCR_val(MFN)/(PLPRCR_val(MFD)+1))/
- (PLPRCR_val(PDF)+1) / (1<<PLPRCR_val(S));
+ factor = (PLPRCR_val(MFI) + PLPRCR_val(MFN) / (PLPRCR_val(MFD) + 1)) /
+ (PLPRCR_val(PDF) + 1) / (1 << PLPRCR_val(S));
oscclk = gd->cpu_clk / factor;
if ((in_be32(&immap->im_clkrst.car_sccr) & SCCR_RTSEL) == 0 ||
factor > 2)
- return (oscclk / 4);
+ return oscclk / 4;
- return (oscclk / 16);
+ return oscclk / 16;
}
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_WATCHDOG)
-void watchdog_reset (void)
+void watchdog_reset(void)
{
- int re_enable = disable_interrupts ();
+ int re_enable = disable_interrupts();
reset_8xx_watchdog((immap_t __iomem *)CONFIG_SYS_IMMR);
if (re_enable)
- enable_interrupts ();
+ enable_interrupts();
}
#endif /* CONFIG_WATCHDOG */
generated by cgit (git 2.34.1) at 2024-12-25 20:55:41 +0000