diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/pxa/cpu.c | 3 | ||||
| -rw-r--r-- | cpu/pxa/serial.c | 12 | ||||
| -rw-r--r-- | cpu/pxa/start.S | 44 |
3 files changed, 47 insertions, 12 deletions
diff --git a/cpu/pxa/cpu.c b/cpu/pxa/cpu.c index d1551dd..445ba18 100644 --- a/cpu/pxa/cpu.c +++ b/cpu/pxa/cpu.c @@ -143,6 +143,7 @@ int dcache_status (void) return 0; /* always off */ } +#ifndef CONFIG_CPU_MONAHANS void set_GPIO_mode(int gpio_mode) { int gpio = gpio_mode & GPIO_MD_MASK_NR; @@ -160,3 +161,5 @@ void set_GPIO_mode(int gpio_mode) gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); } +#endif /* CONFIG_CPU_MONAHANS */ + diff --git a/cpu/pxa/serial.c b/cpu/pxa/serial.c index cedebfe..9bf2a7c 100644 --- a/cpu/pxa/serial.c +++ b/cpu/pxa/serial.c @@ -54,7 +54,11 @@ void serial_setbrg (void) hang (); #ifdef CONFIG_FFUART +#ifdef CONFIG_CPU_MONAHANS + CKENA |= CKENA_22_FFUART; +#else CKEN |= CKEN6_FFUART; +#endif /* CONFIG_CPU_MONAHANS */ FFIER = 0; /* Disable for now */ FFFCR = 0; /* No fifos enabled */ @@ -68,7 +72,11 @@ void serial_setbrg (void) FFIER = IER_UUE; /* Enable FFUART */ #elif defined(CONFIG_BTUART) +#ifdef CONFIG_CPU_MONAHANS + CKENA |= CKENA_21_BTUART; +#else CKEN |= CKEN7_BTUART; +#endif /* CONFIG_CPU_MONAHANS */ BTIER = 0; BTFCR = 0; @@ -82,7 +90,11 @@ void serial_setbrg (void) BTIER = IER_UUE; /* Enable BFUART */ #elif defined(CONFIG_STUART) +#ifdef CONFIG_CPU_MONAHANS + CKENA |= CKENA_23_STUART; +#else CKEN |= CKEN5_STUART; +#endif /* CONFIG_CPU_MONAHANS */ STIER = 0; STFCR = 0; diff --git a/cpu/pxa/start.S b/cpu/pxa/start.S index a8cc080..9940826 100644 --- a/cpu/pxa/start.S +++ b/cpu/pxa/start.S @@ -190,10 +190,10 @@ cpuspeed: .word CFG_CPUSPEED #endif - /* RS: ??? */ - .macro CPWAIT - mrc p15,0,r0,c2,c0,0 - mov r0,r0 + /* takes care the CP15 update has taken place */ + .macro CPWAIT reg + mrc p15,0,\reg,c2,c0,0 + mov \reg,\reg sub pc,pc,#4 .endm @@ -201,13 +201,28 @@ cpuspeed: .word CFG_CPUSPEED cpu_init_crit: /* mask all IRQs */ +#ifndef CONFIG_CPU_MONAHANS + ldr r0, IC_BASE mov r1, #0x00 str r1, [r0, #ICMR] +#else + /* Step 1 - Enable CP6 permission */ + mrc p15, 0, r1, c15, c1, 0 @ read CPAR + orr r1, r1, #0x40 + mcr p15, 0, r1, c15, c1, 0 + CPWAIT r1 + + /* Step 2 - Mask ICMR & ICMR2 */ + mov r1, #0 + mcr p6, 0, r1, c1, c0, 0 @ ICMR + mcr p6, 0, r1, c7, c0, 0 @ ICMR2 +#endif -#if defined(CFG_CPUSPEED) - - /* set clock speed */ +#ifndef CONFIG_CPU_MONAHANS +#ifdef CFG_CPUSPEED + + /* set clock speed tbd@mk: required for monahans? */ ldr r0, CC_BASE ldr r1, cpuspeed str r1, [r0, #CCCR] @@ -215,7 +230,10 @@ cpu_init_crit: mcr p14, 0, r0, c6, c0, 0 setspeed_done: -#endif + +#endif /* CFG_CPUSPEED */ +#endif /* CONFIG_CPU_MONAHANS */ + /* * before relocating, we have to setup RAM timing @@ -227,19 +245,21 @@ setspeed_done: mov lr, ip /* Memory interfaces are working. Disable MMU and enable I-cache. */ + /* mk: hmm, this is not in the monahans docs, leave it now but + * check here if it doesn't work :-) */ ldr r0, =0x2001 /* enable access to all coproc. */ mcr p15, 0, r0, c15, c1, 0 - CPWAIT + CPWAIT r0 mcr p15, 0, r0, c7, c10, 4 /* drain the write & fill buffers */ - CPWAIT + CPWAIT r0 mcr p15, 0, r0, c7, c7, 0 /* flush Icache, Dcache and BTB */ - CPWAIT + CPWAIT r0 mcr p15, 0, r0, c8, c7, 0 /* flush instuction and data TLBs */ - CPWAIT + CPWAIT r0 /* Enable the Icache */ /* |