* Patch by Steven Scholz, 27 Feb 2004:
- Adding get_ticks() and get_tbclk() for AT91RM9200 - Many white space fixes in cpu/at91rm9200/interrupts.c * Patches by Steven Scholz, 20 Feb 2004: some cleanup in AT91RM9200 related code
This commit is contained in:
wdenk
parent
42dfe7a184
commit
d9df1f4e66
@ -2,6 +2,13 @@
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Changes for U-Boot 1.0.2:
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======================================================================
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* Patch by Steven Scholz, 27 Feb 2004:
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- Adding get_ticks() and get_tbclk() for AT91RM9200
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- Many white space fixes in cpu/at91rm9200/interrupts.c
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* Patches by Steven Scholz, 20 Feb 2004:
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some cleanup in AT91RM9200 related code
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* Patches by Travis Sawyer, 12 Mar 2004:
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- Fix Gigabit Ethernet support for 440GX
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- Add Gigabit Ethernet Support to MII PHY utilities
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10
Makefile
10
Makefile
@ -905,9 +905,6 @@ ZUMA_config: unconfig
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## StrongARM Systems
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#########################################################################
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at91rm9200dk_config : unconfig
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@./mkconfig $(@:_config=) arm at91rm9200 at91rm9200dk
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dnp1110_config : unconfig
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@./mkconfig $(@:_config=) arm sa1100 dnp1110
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@ -1013,6 +1010,13 @@ ep7312_config : unconfig
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modnet50_config : unconfig
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@./mkconfig $(@:_config=) arm arm720t modnet50
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#########################################################################
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## AT91RM9200 Systems
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#########################################################################
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at91rm9200dk_config : unconfig
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@./mkconfig $(@:_config=) arm at91rm9200 at91rm9200dk
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#########################################################################
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## XScale Systems
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#########################################################################
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@ -41,10 +41,12 @@ extern void reset_cpu(ulong addr);
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#define TIMER_LOAD_VAL 0xffff
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/* macro to read the 16 bit timer */
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#define READ_TIMER (tmr->TC_CV)
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#define READ_TIMER (tmr->TC_CV & 0x0000ffff)
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AT91PS_TC tmr;
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#ifdef CONFIG_USE_IRQ
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#error There is no IRQ support for AT91RM9200 in U-Boot yet.
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#else
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void enable_interrupts (void)
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{
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return;
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@ -53,6 +55,7 @@ int disable_interrupts (void)
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{
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return 0;
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}
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#endif
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void bad_mode (void)
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@ -64,11 +67,15 @@ void bad_mode(void)
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void show_regs (struct pt_regs *regs)
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{
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unsigned long flags;
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const char *processor_modes[]=
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{ "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" ,
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"UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26",
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"USER_32", "FIQ_32" , "IRQ_32" , "SVC_32" , "UK4_32" , "UK5_32" , "UK6_32" , "ABT_32" ,
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"UK8_32" , "UK9_32" , "UK10_32", "UND_32" , "UK12_32", "UK13_32", "UK14_32", "SYS_32"
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const char *processor_modes[] = {
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"USER_26", "FIQ_26", "IRQ_26", "SVC_26",
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"UK4_26", "UK5_26", "UK6_26", "UK7_26",
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"UK8_26", "UK9_26", "UK10_26", "UK11_26",
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"UK12_26", "UK13_26", "UK14_26", "UK15_26",
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"USER_32", "FIQ_32", "IRQ_32", "SVC_32",
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"UK4_32", "UK5_32", "UK6_32", "ABT_32",
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"UK8_32", "UK9_32", "UK10_32", "UND_32",
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"UK12_32", "UK13_32", "UK14_32", "SYS_32",
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};
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flags = condition_codes (regs);
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@ -76,17 +83,13 @@ const char *processor_modes[]=
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printf ("pc : [<%08lx>] lr : [<%08lx>]\n"
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"sp : %08lx ip : %08lx fp : %08lx\n",
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instruction_pointer (regs),
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regs->ARM_lr, regs->ARM_sp,
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regs->ARM_ip, regs->ARM_fp);
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regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
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printf ("r10: %08lx r9 : %08lx r8 : %08lx\n",
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regs->ARM_r10, regs->ARM_r9,
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regs->ARM_r8);
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regs->ARM_r10, regs->ARM_r9, regs->ARM_r8);
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printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
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regs->ARM_r7, regs->ARM_r6,
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regs->ARM_r5, regs->ARM_r4);
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regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4);
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printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
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regs->ARM_r3, regs->ARM_r2,
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regs->ARM_r1, regs->ARM_r0);
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regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0);
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printf ("Flags: %c%c%c%c",
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flags & CC_N_BIT ? 'N' : 'n',
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flags & CC_Z_BIT ? 'Z' : 'z',
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@ -169,6 +172,7 @@ int interrupt_init (void)
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lastinc = TIMER_LOAD_VAL;
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tmr->TC_CCR = AT91C_TC_SWTRG | AT91C_TC_CLKEN;
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timestamp = 0;
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return (0);
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}
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@ -206,8 +210,8 @@ void reset_timer_masked(void)
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ulong get_timer_masked (void)
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{
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ulong now = READ_TIMER;
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if (now >= lastinc)
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{
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if (now >= lastinc) {
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/* normal mode */
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timestamp += now - lastinc;
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} else {
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@ -229,6 +233,27 @@ void udelay_masked(unsigned long usec)
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reset_timer_masked ();
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while(get_timer_masked() < tmo);
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while (get_timer_masked () < tmo)
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/*NOP*/;
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}
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/*
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* This function is derived from PowerPC code (read timebase as long long).
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* On ARM it just returns the timer value.
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*/
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unsigned long long get_ticks(void)
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{
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return get_timer(0);
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}
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/*
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* This function is derived from PowerPC code (timebase clock frequency).
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* On ARM it returns the number of timer ticks per second.
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*/
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ulong get_tbclk (void)
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{
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ulong tbclk;
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tbclk = CFG_HZ;
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return tbclk;
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}
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@ -43,7 +43,7 @@ void serial_setbrg(void)
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if ((baudrate = gd->bd->bi_baudrate) <= 0)
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baudrate = CONFIG_BAUDRATE;
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us->US_BRGR = 33 /* AT91C_MASTER_CLOCK / baudrate / 16 */; /* hardcode so no __divsi3 */
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us->US_BRGR = CFG_AT91C_BRGR_DIVISOR; /* hardcode so no __divsi3 */
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}
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int serial_init (void)
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@ -55,7 +55,9 @@ int serial_init(void)
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us->US_CR = AT91C_US_RSTRX | AT91C_US_RSTTX;
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us->US_CR = AT91C_US_RXEN | AT91C_US_TXEN;
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us->US_MR = ( AT91C_US_CLKS_CLOCK | AT91C_US_CHRL_8_BITS | AT91C_US_PAR_NONE | AT91C_US_NBSTOP_1_BIT );
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us->US_MR =
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(AT91C_US_CLKS_CLOCK | AT91C_US_CHRL_8_BITS |
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AT91C_US_PAR_NONE | AT91C_US_NBSTOP_1_BIT);
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us->US_IMR = ~0ul;
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return (0);
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}
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@ -64,16 +66,13 @@ void serial_putc(const char c)
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{
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if (c == '\n')
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serial_putc ('\r');
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while( (us->US_CSR & AT91C_US_TXRDY) == 0 )
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;
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while ((us->US_CSR & AT91C_US_TXRDY) == 0);
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us->US_THR = c;
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}
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void
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serial_puts (const char *s)
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{
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while (*s)
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void serial_puts (const char *s)
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{
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while (*s) {
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serial_putc (*s++);
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}
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}
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@ -28,11 +28,6 @@
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#include "AT91RM9200_inc.h"
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#endif
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/* AT91RM92000 clocks */
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#define AT91_MAIN_CLOCK 179712000 /* from 18.432 MHz crystal (18432000 / 4 * 39) */
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#define AT91_MASTER_CLOCK 59904000 /* peripheral clock (AT91C_MASTER_CLOCK / 3) */
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#define AT91_SLOW_CLOCK 32768 /* slow clock */
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/* Virtual and Physical base address for system peripherals */
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#define AT91_SYS_BASE 0xFFFFF000 /*4K */
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@ -36,6 +36,8 @@
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#define AT91C_MASTER_CLOCK 59904000 /* peripheral clock (AT91C_MASTER_CLOCK / 3) */
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/* #define AT91C_MASTER_CLOCK 44928000 */ /* peripheral clock (AT91C_MASTER_CLOCK / 4) */
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#define AT91_SLOW_CLOCK 32768 /* slow clock */
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#define CONFIG_AT91RM9200DK 1 /* on an AT91RM9200DK Board */
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#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
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#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
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@ -50,6 +52,8 @@
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#define CONFIG_BAUDRATE 115200
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#define CFG_AT91C_BRGR_DIVISOR 33 /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
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/*
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* Hardware drivers
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*/
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