diff options
Diffstat (limited to 'cpu/mpc5xx')
| -rw-r--r-- | cpu/mpc5xx/Makefile | 59 | ||||
| -rw-r--r-- | cpu/mpc5xx/config.mk | 36 | ||||
| -rw-r--r-- | cpu/mpc5xx/cpu.c | 171 | ||||
| -rw-r--r-- | cpu/mpc5xx/cpu_init.c | 123 | ||||
| -rw-r--r-- | cpu/mpc5xx/interrupts.c | 207 | ||||
| -rw-r--r-- | cpu/mpc5xx/serial.c | 170 | ||||
| -rw-r--r-- | cpu/mpc5xx/speed.c | 67 | ||||
| -rw-r--r-- | cpu/mpc5xx/spi.c | 412 | ||||
| -rw-r--r-- | cpu/mpc5xx/start.S | 576 | ||||
| -rw-r--r-- | cpu/mpc5xx/traps.c | 227 | ||||
| -rw-r--r-- | cpu/mpc5xx/u-boot.lds | 137 |
11 files changed, 0 insertions, 2185 deletions
diff --git a/cpu/mpc5xx/Makefile b/cpu/mpc5xx/Makefile deleted file mode 100644 index 8aab018..0000000 --- a/cpu/mpc5xx/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -# -# (C) Copyright 2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# (C) Copyright 2003 -# Martin Winistoerfer, martinwinistoerfer@gmx.ch. -# -# 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 -# - -# -# File: cpu/mpc5xx/Makefile -# -# Discription: Makefile to build mpc5xx cpu configuration. -# Will include top config.mk which itselfs -# uses the definitions made in cpu/mpc5xx/config.mk -# - - -include $(TOPDIR)/config.mk - -LIB = $(obj)lib$(CPU).a - -START = start.o -COBJS = serial.o cpu.o cpu_init.o interrupts.o traps.o speed.o spi.o - -SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) -START := $(addprefix $(obj),$(START)) - -all: $(obj).depend $(START) $(LIB) - -$(LIB): $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/cpu/mpc5xx/config.mk b/cpu/mpc5xx/config.mk deleted file mode 100644 index 7854924..0000000 --- a/cpu/mpc5xx/config.mk +++ /dev/null @@ -1,36 +0,0 @@ -# -# (C) Copyright 2003 -# Martin Winistoerfer, martinwinistoerfer@gmx.ch. -# -# 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 -# - -# -# File: config.mk -# -# Discription: compiler flags and make definitions -# - - -PLATFORM_RELFLAGS += -fPIC -meabi - -PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -mpowerpc -msoft-float - -# Use default linker script. Board port can override in board/*/config.mk -LDSCRIPT := $(SRCTREE)/cpu/mpc5xx/u-boot.lds diff --git a/cpu/mpc5xx/cpu.c b/cpu/mpc5xx/cpu.c deleted file mode 100644 index 7fffebc..0000000 --- a/cpu/mpc5xx/cpu.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * (C) Copyright 2003 - * Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: cpu.c - * - * Discription: Some cpu specific function for watchdog, - * cpu version test, clock setting ... - * - */ - - -#include <common.h> -#include <watchdog.h> -#include <command.h> -#include <mpc5xx.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if (defined(CONFIG_MPC555)) -# define ID_STR "MPC555/556" - -/* - * Check version of cpu with Processor Version Register (PVR) - */ -static int check_cpu_version (long clock, uint pvr, uint immr) -{ - char buf[32]; - /* The highest 16 bits should be 0x0002 for a MPC555/556 */ - if ((pvr >> 16) == 0x0002) { - printf (" " ID_STR " Version %x", (pvr >> 16)); - printf (" at %s MHz:", strmhz (buf, clock)); - } else { - printf ("Not supported cpu version"); - return -1; - } - return 0; -} -#endif /* CONFIG_MPC555 */ - - -/* - * Check version of mpc5xx - */ -int checkcpu (void) -{ - ulong clock = gd->cpu_clk; - uint immr = get_immr (0); /* Return full IMMR contents */ - uint pvr = get_pvr (); /* Retrieve PVR register */ - - puts ("CPU: "); - - return check_cpu_version (clock, pvr, immr); -} - -/* - * Called by macro WATCHDOG_RESET - */ -#if defined(CONFIG_WATCHDOG) -void watchdog_reset (void) -{ - int re_enable = disable_interrupts (); - - reset_5xx_watchdog ((immap_t *) CONFIG_SYS_IMMR); - if (re_enable) - enable_interrupts (); -} - -/* - * Will clear software reset - */ -void reset_5xx_watchdog (volatile immap_t * immr) -{ - /* Use the MPC5xx Internal Watchdog */ - immr->im_siu_conf.sc_swsr = 0x556c; /* Prevent SW time-out */ - immr->im_siu_conf.sc_swsr = 0xaa39; -} - -#endif /* CONFIG_WATCHDOG */ - - -/* - * Get timebase clock frequency - */ -unsigned long get_tbclk (void) -{ - volatile immap_t *immr = (volatile immap_t *) CONFIG_SYS_IMMR; - ulong oscclk, factor; - - if (immr->im_clkrst.car_sccr & SCCR_TBS) { - return (gd->cpu_clk / 16); - } - - factor = (((CONFIG_SYS_PLPRCR) & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT) + 1; - - oscclk = gd->cpu_clk / factor; - - if ((immr->im_clkrst.car_sccr & SCCR_RTSEL) == 0 || factor > 2) { - return (oscclk / 4); - } - return (oscclk / 16); -} - -void dcache_enable (void) -{ - return; -} - -void dcache_disable (void) -{ - return; -} - -int dcache_status (void) -{ - return 0; /* always off */ -} - -/* - * Reset board - */ -int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) -{ -#if defined(CONFIG_PATI) - volatile ulong *addr = (ulong *) CONFIG_SYS_RESET_ADDRESS; - *addr = 1; -#else - ulong addr; - - /* Interrupts off, enable reset */ - __asm__ volatile (" mtspr 81, %r0 \n\t" - " mfmsr %r3 \n\t" - " rlwinm %r31,%r3,0,25,23\n\t" - " mtmsr %r31 \n\t"); - /* - * Trying to execute the next instruction at a non-existing address - * should cause a machine check, resulting in reset - */ -#ifdef CONFIG_SYS_RESET_ADDRESS - 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. - * "(ulong)-1" used to be a good choice for many systems... - */ - addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong); -#endif - ((void (*) (void)) addr) (); -#endif /* #if defined(CONFIG_PATI) */ - return 1; -} diff --git a/cpu/mpc5xx/cpu_init.c b/cpu/mpc5xx/cpu_init.c deleted file mode 100644 index cb4bf84..0000000 --- a/cpu/mpc5xx/cpu_init.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: cpu_init.c - * - * Discription: Contains initialisation functions to setup - * the cpu properly - * - */ - -#include <common.h> -#include <mpc5xx.h> -#include <watchdog.h> - -/* - * Setup essential cpu registers to run - */ -void cpu_init_f (volatile immap_t * immr) -{ - volatile memctl5xx_t *memctl = &immr->im_memctl; - ulong reg; - - /* SYPCR - contains watchdog control. This will enable watchdog */ - /* if CONFIG_WATCHDOG is set */ - immr->im_siu_conf.sc_sypcr = CONFIG_SYS_SYPCR; - -#if defined(CONFIG_WATCHDOG) - reset_5xx_watchdog (immr); -#endif - - /* SIUMCR - contains debug pin configuration */ - immr->im_siu_conf.sc_siumcr |= CONFIG_SYS_SIUMCR; - - /* Initialize timebase. Unlock TBSCRK */ - immr->im_sitk.sitk_tbscrk = KAPWR_KEY; - immr->im_sit.sit_tbscr = CONFIG_SYS_TBSCR; - - /* Full IMB bus speed */ - immr->im_uimb.uimb_umcr = CONFIG_SYS_UMCR; - - /* Time base and decrementer will be enables (TBE) */ - /* in init_timebase() in time.c called from board_init_f(). */ - - /* Initialize the PIT. Unlock PISCRK */ - immr->im_sitk.sitk_piscrk = KAPWR_KEY; - immr->im_sit.sit_piscr = CONFIG_SYS_PISCR; - -#if !defined(CONFIG_PATI) - /* PATI sest PLL in start.S */ - /* PLL (CPU clock) settings */ - immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; - - /* If CONFIG_SYS_PLPRCR (set in the various *_config.h files) tries to - * set the MF field, then just copy CONFIG_SYS_PLPRCR over car_plprcr, - * otherwise OR in CONFIG_SYS_PLPRCR so we do not change the currentMF - * field value. - */ -#if ((CONFIG_SYS_PLPRCR & PLPRCR_MF_MSK) != 0) - reg = CONFIG_SYS_PLPRCR; /* reset control bits */ -#else - reg = immr->im_clkrst.car_plprcr; - reg &= PLPRCR_MF_MSK; /* isolate MF field */ - reg |= CONFIG_SYS_PLPRCR; /* reset control bits */ -#endif - immr->im_clkrst.car_plprcr = reg; - -#endif /* !defined(CONFIG_PATI) */ - - /* System integration timers. CONFIG_SYS_MASK has EBDF configuration */ - immr->im_clkrstk.cark_sccrk = KAPWR_KEY; - reg = immr->im_clkrst.car_sccr; - reg &= SCCR_MASK; - reg |= CONFIG_SYS_SCCR; - immr->im_clkrst.car_sccr = reg; - - /* Memory Controller */ - memctl->memc_br0 = CONFIG_SYS_BR0_PRELIM; - memctl->memc_or0 = CONFIG_SYS_OR0_PRELIM; - -#if (defined(CONFIG_SYS_OR1_PRELIM) && defined(CONFIG_SYS_BR1_PRELIM)) - memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM; - memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM; -#endif - -#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM) - memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM; - memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM; -#endif - -#if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM) - memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM; - memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM; -#endif - -} - -/* - * Initialize higher level parts of cpu - */ -int cpu_init_r (void) -{ - /* Nothing to do at the moment */ - return (0); -} diff --git a/cpu/mpc5xx/interrupts.c b/cpu/mpc5xx/interrupts.c deleted file mode 100644 index 167543f..0000000 --- a/cpu/mpc5xx/interrupts.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * (C) Copyright 2000-2002 Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: interrupt.c - * - * Discription: Contains interrupt routines needed by U-Boot - * - */ - -#include <common.h> -#include <command.h> -#include <mpc5xx.h> -#include <asm/processor.h> - -#if defined(CONFIG_PATI) -/* PATI uses IRQs for PCI doorbell */ -#undef NR_IRQS -#define NR_IRQS 16 -#endif - -struct interrupt_action { - interrupt_handler_t *handler; - void *arg; - int count; -}; - -static struct interrupt_action irq_vecs[NR_IRQS]; - -/* - * Initialise interrupts - */ - -int interrupt_init_cpu (ulong *decrementer_count) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - int vec; - - /* Decrementer used here for status led */ - *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; - - /* Disable all interrupts */ - immr->im_siu_conf.sc_simask = 0; - for (vec=0; vec<NR_IRQS; vec++) { - irq_vecs[vec].handler = NULL; - irq_vecs[vec].arg = NULL; - irq_vecs[vec].count = 0; - } - - return (0); -} - -/* - * Handle external interrupts - */ -void external_interrupt (struct pt_regs *regs) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - int irq; - ulong simask, newmask; - ulong vec, v_bit; - - /* - * read the SIVEC register and shift the bits down - * to get the irq number - */ - vec = immr->im_siu_conf.sc_sivec; - irq = vec >> 26; - v_bit = 0x80000000UL >> irq; - - /* - * Read Interrupt Mask Register and Mask Interrupts - */ - simask = immr->im_siu_conf.sc_simask; - newmask = simask & (~(0xFFFF0000 >> irq)); - immr->im_siu_conf.sc_simask = newmask; - - if (!(irq & 0x1)) { /* External Interrupt ? */ - ulong siel; - - /* - * Read Interrupt Edge/Level Register - */ - siel = immr->im_siu_conf.sc_siel; - - if (siel & v_bit) { /* edge triggered interrupt ? */ - /* - * Rewrite SIPEND Register to clear interrupt - */ - immr->im_siu_conf.sc_sipend = v_bit; - } - } - - if (irq_vecs[irq].handler != NULL) { - irq_vecs[irq].handler (irq_vecs[irq].arg); - } else { - printf ("\nBogus External Interrupt IRQ %d Vector %ld\n", - irq, vec); - /* turn off the bogus interrupt to avoid it from now */ - simask &= ~v_bit; - } - /* - * Re-Enable old Interrupt Mask - */ - immr->im_siu_conf.sc_simask = simask; -} - -/* - * Install and free an interrupt handler - */ -void irq_install_handler (int vec, interrupt_handler_t * handler, - void *arg) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - /* SIU interrupt */ - if (irq_vecs[vec].handler != NULL) { - printf ("SIU interrupt %d 0x%x\n", - vec, - (uint) handler); - } - irq_vecs[vec].handler = handler; - irq_vecs[vec].arg = arg; - immr->im_siu_conf.sc_simask |= 1 << (31 - vec); -#if 0 - printf ("Install SIU interrupt for vector %d ==> %p\n", - vec, handler); -#endif -} - -void irq_free_handler (int vec) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - /* SIU interrupt */ -#if 0 - printf ("Free CPM interrupt for vector %d\n", - vec); -#endif - immr->im_siu_conf.sc_simask &= ~(1 << (31 - vec)); - irq_vecs[vec].handler = NULL; - irq_vecs[vec].arg = NULL; -} - -/* - * Timer interrupt - gets called when bit 0 of DEC changes from - * 0. Decrementer is enabled with bit TBE in TBSCR. - */ -void timer_interrupt_cpu (struct pt_regs *regs) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - -#if 0 - printf ("*** Timer Interrupt *** "); -#endif - /* Reset Timer Status Bit and Timers Interrupt Status */ - immr->im_clkrstk.cark_plprcrk = KAPWR_KEY; - __asm__ ("nop"); - immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS | PLPRCR_TMIST; - - return; -} - -#if defined(CONFIG_CMD_IRQ) -/******************************************************************************* - * - * irqinfo - print information about IRQs - * - */ -int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) -{ - int vec; - - printf ("\nInterrupt-Information:\n"); - printf ("Nr Routine Arg Count\n"); - - for (vec=0; vec<NR_IRQS; vec++) { - if (irq_vecs[vec].handler != NULL) { - printf ("%02d %08lx %08lx %d\n", - vec, - (ulong)irq_vecs[vec].handler, - (ulong)irq_vecs[vec].arg, - irq_vecs[vec].count); - } - } - return 0; -} - - -#endif diff --git a/cpu/mpc5xx/serial.c b/cpu/mpc5xx/serial.c deleted file mode 100644 index 88c6db8..0000000 --- a/cpu/mpc5xx/serial.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * (C) Copyright 2003 - * Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: serial.c - * - * Discription: Serial interface driver for SCI1 and SCI2. - * Since this code will be called from ROM use - * only non-static local variables. - * - */ - -#include <common.h> -#include <watchdog.h> -#include <command.h> -#include <mpc5xx.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Local function prototypes - */ - -static int ready_to_send(void); - -/* - * Minimal global serial functions needed to use one of the SCI modules. - */ - -int serial_init (void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - - serial_setbrg(); - -#if defined(CONFIG_5xx_CONS_SCI1) - /* 10-Bit, 1 start bit, 8 data bit, no parity, 1 stop bit */ - immr->im_qsmcm.qsmcm_scc1r1 = SCI_M_10; - immr->im_qsmcm.qsmcm_scc1r1 = SCI_TE | SCI_RE; -#else - immr->im_qsmcm.qsmcm_scc2r1 = SCI_M_10; - immr->im_qsmcm.qsmcm_scc2r1 = SCI_TE | SCI_RE; -#endif - return 0; -} - -void serial_putc(const char c) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - - /* Test for completition */ - if(ready_to_send()) { -#if defined(CONFIG_5xx_CONS_SCI1) - immr->im_qsmcm.qsmcm_sc1dr = (short)c; -#else - immr->im_qsmcm.qsmcm_sc2dr = (short)c; -#endif - if(c == '\n') { - if(ready_to_send()); -#if defined(CONFIG_5xx_CONS_SCI1) - immr->im_qsmcm.qsmcm_sc1dr = (short)'\r'; -#else - immr->im_qsmcm.qsmcm_sc2dr = (short)'\r'; -#endif - } - } -} - -int serial_getc(void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - volatile short status; - unsigned char tmp; - - /* New data ? */ - do { -#if defined(CONFIG_5xx_CONS_SCI1) - status = immr->im_qsmcm.qsmcm_sc1sr; -#else - status = immr->im_qsmcm.qsmcm_sc2sr; -#endif - -#if defined(CONFIG_WATCHDOG) - reset_5xx_watchdog (immr); -#endif - } while ((status & SCI_RDRF) == 0); - - /* Read data */ -#if defined(CONFIG_5xx_CONS_SCI1) - tmp = (unsigned char)(immr->im_qsmcm.qsmcm_sc1dr & SCI_SCXDR_MK); -#else - tmp = (unsigned char)( immr->im_qsmcm.qsmcm_sc2dr & SCI_SCXDR_MK); -#endif - return tmp; -} - -int serial_tstc() -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - short status; - - /* New data character ? */ -#if defined(CONFIG_5xx_CONS_SCI1) - status = immr->im_qsmcm.qsmcm_sc1sr; -#else - status = immr->im_qsmcm.qsmcm_sc2sr; -#endif - return (status & SCI_RDRF); -} - -void serial_setbrg (void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - short scxbr; - - /* Set baudrate */ - scxbr = (gd->cpu_clk / (32 * gd->baudrate)); -#if defined(CONFIG_5xx_CONS_SCI1) - immr->im_qsmcm.qsmcm_scc1r0 = (scxbr & SCI_SCXBR_MK); -#else - immr->im_qsmcm.qsmcm_scc2r0 = (scxbr & SCI_SCXBR_MK); -#endif -} - -void serial_puts (const char *s) -{ - while (*s) { - serial_putc(*s); - ++s; - } -} - -int ready_to_send(void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - volatile short status; - - do { -#if defined(CONFIG_5xx_CONS_SCI1) - status = immr->im_qsmcm.qsmcm_sc1sr; -#else - status = immr->im_qsmcm.qsmcm_sc2sr; -#endif - -#if defined(CONFIG_WATCHDOG) - reset_5xx_watchdog (immr); -#endif - } while ((status & SCI_TDRE) == 0); - return 1; - -} diff --git a/cpu/mpc5xx/speed.c b/cpu/mpc5xx/speed.c deleted file mode 100644 index ea5c1de..0000000 --- a/cpu/mpc5xx/speed.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * (C) Copyright 2003 - * Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: speed.c - * - * Discription: Provides cpu speed calculation - * - */ - -#include <common.h> -#include <mpc5xx.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Get cpu and bus clock - */ -int get_clocks (void) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - -#ifndef CONFIG_5xx_GCLK_FREQ - uint divf = (immr->im_clkrst.car_plprcr & PLPRCR_DIVF_MSK); - uint mf = ((immr->im_clkrst.car_plprcr & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT); - ulong vcoout; - - vcoout = (CONFIG_SYS_OSC_CLK / (divf + 1)) * (mf + 1) * 2; - if(immr->im_clkrst.car_plprcr & PLPRCR_CSRC_MSK) { - gd->cpu_clk = vcoout / (2^(((immr->im_clkrst.car_sccr & SCCR_DFNL_MSK) >> SCCR_DFNL_SHIFT) + 1)); - } else { - gd->cpu_clk = vcoout / (2^(immr->im_clkrst.car_sccr & SCCR_DFNH_MSK)); - } - -#else /* CONFIG_5xx_GCLK_FREQ */ - gd->bus_clk = CONFIG_5xx_GCLK_FREQ; -#endif /* CONFIG_5xx_GCLK_FREQ */ - - if ((immr->im_clkrst.car_sccr & SCCR_EBDF11) == 0) { - /* No Bus Divider active */ - gd->bus_clk = gd->cpu_clk; - } else { - /* CLKOUT is GCLK / 2 */ - gd->bus_clk = gd->cpu_clk / 2; - } - return (0); -} diff --git a/cpu/mpc5xx/spi.c b/cpu/mpc5xx/spi.c deleted file mode 100644 index 3ca15ea..0000000 --- a/cpu/mpc5xx/spi.c +++ /dev/null @@ -1,412 +0,0 @@ -/* - * Copyright (c) 2001 Navin Boppuri / Prashant Patel - * <nboppuri@trinetcommunication.com>, - * <pmpatel@trinetcommunication.com> - * Copyright (c) 2001 Gerd Mennchen <Gerd.Mennchen@icn.siemens.de> - * Copyright (c) 2001 Wolfgang Denk, DENX Software Engineering, <wd@denx.de>. - * - * 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 - */ - -/* - * MPC5xx CPM SPI interface. - * - * Parts of this code are probably not portable and/or specific to - * the board which I used for the tests. Please send fixes/complaints - * to wd@denx.de - * - * Ported to MPC5xx - * Copyright (c) 2003 Denis Peter, MPL AG Switzerland, d.petr@mpl.ch. - */ - -#include <common.h> -#include <mpc5xx.h> -#include <asm/5xx_immap.h> -#include <linux/ctype.h> -#include <malloc.h> -#include <post.h> -#include <net.h> - -#if defined(CONFIG_SPI) - -#undef DEBUG - -#define SPI_EEPROM_WREN 0x06 -#define SPI_EEPROM_RDSR 0x05 -#define SPI_EEPROM_READ 0x03 -#define SPI_EEPROM_WRITE 0x02 - - -#ifdef DEBUG - -#define DPRINT(a) printf a; -/* ----------------------------------------------- - * Helper functions to peek into tx and rx buffers - * ----------------------------------------------- */ -static const char * const hex_digit = "0123456789ABCDEF"; - -static char quickhex (int i) -{ - return hex_digit[i]; -} - -static void memdump (void *pv, int num) -{ - int i; - unsigned char *pc = (unsigned char *) pv; - - for (i = 0; i < num; i++) - printf ("%c%c ", quickhex (pc[i] >> 4), quickhex (pc[i] & 0x0f)); - printf ("\t"); - for (i = 0; i < num; i++) - printf ("%c", isprint (pc[i]) ? pc[i] : '.'); - printf ("\n"); -} -#else /* !DEBUG */ - -#define DPRINT(a) - -#endif /* DEBUG */ - -/* ------------------- - * Function prototypes - * ------------------- */ -void spi_init (void); - -ssize_t spi_read (uchar *, int, uchar *, int); -ssize_t spi_write (uchar *, int, uchar *, int); -ssize_t spi_xfer (size_t); - - -/* ************************************************************************** - * - * Function: spi_init_f - * - * Description: Init SPI-Controller (ROM part) - * - * return: --- - * - * *********************************************************************** */ - -void spi_init_f (void) -{ - int i; - - volatile immap_t *immr; - volatile qsmcm5xx_t *qsmcm; - - immr = (immap_t *) CONFIG_SYS_IMMR; - qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; - - qsmcm->qsmcm_qsmcr = 0; /* all accesses enabled */ - qsmcm->qsmcm_qspi_il = 0; /* lowest IRQ */ - - /* -------------------------------------------- - * GPIO or per. Function - * PQSPAR[00] = 0 reserved - * PQSPAR[01] = 1 [0x4000] -> PERI: (SPICS3) - * PQSPAR[02] = 0 [0x0000] -> GPIO - * PQSPAR[03] = 0 [0x0000] -> GPIO - * PQSPAR[04] = 1 [0x0800] -> PERI: (SPICS0) - * PQSPAR[05] = 0 reseved - * PQSPAR[06] = 1 [0x0200] -> PERI: (SPIMOSI) - * PQSPAR[07] = 1 [0x0100] -> PERI: (SPIMISO) - * -------------------------------------------- */ - qsmcm->qsmcm_pqspar = 0x3 | (CONFIG_SYS_SPI_CS_USED << 3); - - /* -------------------------------------------- - * DDRQS[00] = 0 reserved - * DDRQS[01] = 1 [0x0040] -> SPICS3 Output - * DDRQS[02] = 0 [0x0000] -> GPIO Output - * DDRQS[03] = 0 [0x0000] -> GPIO Output - * DDRQS[04] = 1 [0x0008] -> SPICS0 Output - * DDRQS[05] = 1 [0x0004] -> SPICLK Output - * DDRQS[06] = 1 [0x0002] -> SPIMOSI Output - * DDRQS[07] = 0 [0x0001] -> SPIMISO Input - * -------------------------------------------- */ - qsmcm->qsmcm_ddrqs = 0x7E; - /* -------------------------------------------- - * Base state for used SPI CS pins, if base = 0 active must be 1 - * PORTQS[00] = 0 reserved - * PORTQS[01] = 0 reserved - * PORTQS[02] = 0 reserved - * PORTQS[03] = 0 reserved - * PORTQS[04] = 0 [0x0000] RxD2 - * PORTQS[05] = 1 [0x0400] TxD2 - * PORTQS[06] = 0 [0x0000] RxD1 - * PORTQS[07] = 1 [0x0100] TxD1 - * PORTQS[08] = 0 reserved - * PORTQS[09] = 0 [0x0000] -> SPICS3 Base Output - * PORTQS[10] = 0 [0x0000] -> SPICS2 Base Output - * PORTQS[11] = 0 [0x0000] -> SPICS1 Base Output - * PORTQS[12] = 0 [0x0000] -> SPICS0 Base Output - * PORTQS[13] = 0 [0x0004] -> SPICLK Output - * PORTQS[14] = 0 [0x0002] -> SPIMOSI Output - * PORTQS[15] = 0 [0x0001] -> SPIMISO Input - * -------------------------------------------- */ - qsmcm->qsmcm_portqs |= (CONFIG_SYS_SPI_CS_BASE << 3); - /* -------------------------------------------- - * Controll Register 0 - * SPCR0[00] = 1 (0x8000) Master - * SPCR0[01] = 0 (0x0000) Wired-Or - * SPCR0[2..5] = (0x2000) Bits per transfer (default 8) - * SPCR0[06] = 0 (0x0000) Normal polarity - * SPCR0[07] = 0 (0x0000) Normal Clock Phase - * SPCR0[08..15] = 14 1.4MHz - */ - qsmcm->qsmcm_spcr0=0xA00E; - /* -------------------------------------------- - * Controll Register 1 - * SPCR1[00] = 0 (0x0000) QSPI enabled - * SPCR1[1..7] = (0x7F00) Delay before Transfer - * SPCR1[8..15] = (0x0000) Delay After transfer (204.8usec@40MHz) - */ - qsmcm->qsmcm_spcr1=0x7F00; - /* -------------------------------------------- - * Controll Register 2 - * SPCR2[00] = 0 (0x0000) SPI IRQs Disabeld - * SPCR2[01] = 0 (0x0000) No Wrap around - * SPCR2[02] = 0 (0x0000) Wrap to 0 - * SPCR2[3..7] = (0x0000) End Queue pointer = 0 - * SPCR2[8..10] = 0 (0x0000) reserved - * SPCR2[11..15] = 0 (0x0000) NewQueue Address = 0 - */ - qsmcm->qsmcm_spcr2=0x0000; - /* -------------------------------------------- - * Controll Register 3 - * SPCR3[00..04] = 0 (0x0000) reserved - * SPCR3[05] = 0 (0x0000) Feedback disabled - * SPCR3[06] = 0 (0x0000) IRQ on HALTA & MODF disabled - * SPCR3[07] = 0 (0x0000) Not halted - */ - qsmcm->qsmcm_spcr3=0x00; - /* -------------------------------------------- - * SPSR (Controll Register 3) Read only/ reset Flags 08,09,10 - * SPCR3[08] = 1 (0x80) QSPI finished - * SPCR3[09] = 1 (0x40) Mode Fault Flag - * SPCR3[10] = 1 (0x20) HALTA - * SPCR3[11..15] = 0 (0x0000) Last executed command - */ - qsmcm->qsmcm_spsr=0xE0; - /*------------------------------------------- - * Setup RAM - */ - for(i=0;i<32;i++) { - qsmcm->qsmcm_recram[i]=0x0000; - qsmcm->qsmcm_tranram[i]=0x0000; - qsmcm->qsmcm_comdram[i]=0x00; - } - return; -} - -/* ************************************************************************** - * - * Function: spi_init_r - * Dummy, all initializations have been done in spi_init_r - * *********************************************************************** */ -void spi_init_r (void) -{ - return; - -} - -/**************************************************************************** - * Function: spi_write - **************************************************************************** */ -ssize_t short_spi_write (uchar *addr, int alen, uchar *buffer, int len) -{ - int i,dlen; - volatile immap_t *immr; - volatile qsmcm5xx_t *qsmcm; - - immr = (immap_t *) CONFIG_SYS_IMMR; - qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; - for(i=0;i<32;i++) { - qsmcm->qsmcm_recram[i]=0x0000; - qsmcm->qsmcm_tranram[i]=0x0000; - qsmcm->qsmcm_comdram[i]=0x00; - } - qsmcm->qsmcm_tranram[0] = SPI_EEPROM_WREN; /* write enable */ - spi_xfer(1); - i=0; - qsmcm->qsmcm_tranram[i++] = SPI_EEPROM_WRITE; /* WRITE memory array */ - qsmcm->qsmcm_tranram[i++] = addr[0]; - qsmcm->qsmcm_tranram[i++] = addr[1]; - - for(dlen=0;dlen<len;dlen++) { - qsmcm->qsmcm_tranram[i+dlen] = buffer[dlen]; /* WRITE memory array */ - } - /* transmit it */ - spi_xfer(i+dlen); - /* ignore received data */ - for (i = 0; i < 1000; i++) { - qsmcm->qsmcm_tranram[0] = SPI_EEPROM_RDSR; /* read status */ - qsmcm->qsmcm_tranram[1] = 0; - spi_xfer(2); - if (!(qsmcm->qsmcm_recram[1] & 1)) { - break; - } - udelay(1000); - } - if (i >= 1000) { - printf ("*** spi_write: Time out while writing!\n"); - } - return len; -} - -#define TRANSFER_LEN 16 - -ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len) -{ - int index,i,newlen; - uchar newaddr[2]; - int curraddr; - - curraddr=(addr[alen-2]<<8)+addr[alen-1]; - i=len; - index=0; - do { - newaddr[1]=(curraddr & 0xff); - newaddr[0]=((curraddr>>8) & 0xff); - if(i>TRANSFER_LEN) { - newlen=TRANSFER_LEN; - i-=TRANSFER_LEN; - } - else { - newlen=i; - i=0; - } - short_spi_write (newaddr, 2, &buffer[index], newlen); - index+=newlen; - curraddr+=newlen; - }while(i); - return (len); -} - -/**************************************************************************** - * Function: spi_read - **************************************************************************** */ -ssize_t short_spi_read (uchar *addr, int alen, uchar *buffer, int len) -{ - int i; - volatile immap_t *immr; - volatile qsmcm5xx_t *qsmcm; - - immr = (immap_t *) CONFIG_SYS_IMMR; - qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; - - for(i=0;i<32;i++) { - qsmcm->qsmcm_recram[i]=0x0000; - qsmcm->qsmcm_tranram[i]=0x0000; - qsmcm->qsmcm_comdram[i]=0x00; - } - i=0; - qsmcm->qsmcm_tranram[i++] = (SPI_EEPROM_READ); /* READ memory array */ - qsmcm->qsmcm_tranram[i++] = addr[0] & 0xff; - qsmcm->qsmcm_tranram[i++] = addr[1] & 0xff; - spi_xfer(3 + len); - for(i=0;i<len;i++) { - *buffer++=(char)qsmcm->qsmcm_recram[i+3]; - } - return len; -} - -ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len) -{ - int index,i,newlen; - uchar newaddr[2]; - int curraddr; - - curraddr=(addr[alen-2]<<8)+addr[alen-1]; - i=len; - index=0; - do { - newaddr[1]=(curraddr & 0xff); - newaddr[0]=((curraddr>>8) & 0xff); - if(i>TRANSFER_LEN) { - newlen=TRANSFER_LEN; - i-=TRANSFER_LEN; - } - else { - newlen=i; - i=0; - } - short_spi_read (newaddr, 2, &buffer[index], newlen); - index+=newlen; - curraddr+=newlen; - }while(i); - return (len); -} - -/**************************************************************************** - * Function: spi_xfer - **************************************************************************** */ -ssize_t spi_xfer (size_t count) -{ - volatile immap_t *immr; - volatile qsmcm5xx_t *qsmcm; - int i; - int tm; - ushort status; - immr = (immap_t *) CONFIG_SYS_IMMR; - qsmcm = (qsmcm5xx_t *)&immr->im_qsmcm; - DPRINT (("*** spi_xfer entered count %d***\n",count)); - - /* Set CS for device */ - for(i=0;i<(count-1);i++) - qsmcm->qsmcm_comdram[i] = 0x80 | CONFIG_SYS_SPI_CS_ACT; /* CS3 is connected to the SPI EEPROM */ - - qsmcm->qsmcm_comdram[i] = CONFIG_SYS_SPI_CS_ACT; /* CS3 is connected to the SPI EEPROM */ - qsmcm->qsmcm_spcr2=((count-1)&0x1F)<<8; - - DPRINT (("*** spi_xfer: Bytes to be xferred: %d ***\n", count)); - - qsmcm->qsmcm_spsr=0xE0; /* clear all flags */ - - /* start spi transfer */ - DPRINT (("*** spi_xfer: Performing transfer ...\n")); - qsmcm->qsmcm_spcr1 |= 0x8000; /* Start transmit */ - - /* -------------------------------- - * Wait for SPI transmit to get out - * or time out (1 second = 1000 ms) - * -------------------------------- */ - for (tm=0; tm<1000; ++tm) { - status=qsmcm->qsmcm_spcr1; - if((status & 0x8000)==0) - break; - udelay (1000); - } - if (tm >= 1000) { - printf ("*** spi_xfer: Time out while xferring to/from SPI!\n"); - } -#ifdef DEBUG - printf ("\nspi_xfer: txbuf after xfer\n"); - memdump ((void *) qsmcm->qsmcm_tranram, 32); /* dump of txbuf before transmit */ - printf ("spi_xfer: rxbuf after xfer\n"); - memdump ((void *) qsmcm->qsmcm_recram, 32); /* dump of rxbuf after transmit */ - printf ("\nspi_xfer: commbuf after xfer\n"); - memdump ((void *) qsmcm->qsmcm_comdram, 32); /* dump of txbuf before transmit */ - printf ("\n"); -#endif - - return count; -} - -#endif /* CONFIG_SPI */ diff --git a/cpu/mpc5xx/start.S b/cpu/mpc5xx/start.S deleted file mode 100644 index 0af879e..0000000 --- a/cpu/mpc5xx/start.S +++ /dev/null @@ -1,576 +0,0 @@ -/* - * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> - * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> - * Copyright (C) 2000, 2001, 2002 Wolfgang Denk <wd@denx.de> - * Copyright (C) 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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 - */ - -/* - * File: start.S - * - * Discription: startup code - * - */ - -#include <config.h> -#include <mpc5xx.h> -#include <timestamp.h> -#include <version.h> - -#define CONFIG_5xx 1 /* needed for Linux kernel header files */ -#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ - -#include <ppc_asm.tmpl> -#include <ppc_defs.h> - -#include <linux/config.h> -#include <asm/processor.h> - -#ifndef CONFIG_IDENT_STRING -#define CONFIG_IDENT_STRING "" -#endif - -/* We don't have a MMU. -*/ -#undef MSR_KERNEL -#define MSR_KERNEL ( MSR_ME | MSR_RI ) /* Machine Check and Recoverable Interr. */ - -/* - * Set up GOT: Global Offset Table - * - * Use r12 to access the GOT - */ - START_GOT - GOT_ENTRY(_GOT2_TABLE_) - GOT_ENTRY(_FIXUP_TABLE_) - - GOT_ENTRY(_start) - GOT_ENTRY(_start_of_vectors) - GOT_ENTRY(_end_of_vectors) - GOT_ENTRY(transfer_to_handler) - - GOT_ENTRY(__init_end) - GOT_ENTRY(_end) - GOT_ENTRY(__bss_start) - END_GOT - -/* - * r3 - 1st arg to board_init(): IMMP pointer - * r4 - 2nd arg to board_init(): boot flag - */ - .text - .long 0x27051956 /* U-Boot Magic Number */ - .globl version_string -version_string: - .ascii U_BOOT_VERSION - .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" - .ascii CONFIG_IDENT_STRING, "\0" - - . = EXC_OFF_SYS_RESET - .globl _start -_start: - mfspr r3, 638 - li r4, CONFIG_SYS_ISB /* Set ISB bit */ - or r3, r3, r4 - mtspr 638, r3 - li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ - b boot_cold - - . = EXC_OFF_SYS_RESET + 0x20 - - .globl _start_warm -_start_warm: - li r21, BOOTFLAG_WARM /* Software reboot */ - b boot_warm - -boot_cold: -boot_warm: - - /* Initialize machine status; enable machine check interrupt */ - /*----------------------------------------------------------------------*/ - li r3, MSR_KERNEL /* Set ME, RI flags */ - mtmsr r3 - mtspr SRR1, r3 /* Make SRR1 match MSR */ - - /* Initialize debug port registers */ - /*----------------------------------------------------------------------*/ - xor r0, r0, r0 /* Clear R0 */ - mtspr LCTRL1, r0 /* Initialize debug port regs */ - mtspr LCTRL2, r0 - mtspr COUNTA, r0 - mtspr COUNTB, r0 - -#if defined(CONFIG_PATI) - /* the external flash access on PATI fails if programming the PLL to 40MHz. - * Copy the PLL programming code to the internal RAM and execute it - *----------------------------------------------------------------------*/ - lis r3, CONFIG_SYS_MONITOR_BASE@h - ori r3, r3, CONFIG_SYS_MONITOR_BASE@l - addi r3, r3, pll_prog_code_start - _start + EXC_OFF_SYS_RESET - - lis r4, CONFIG_SYS_INIT_RAM_ADDR@h - ori r4, r4, CONFIG_SYS_INIT_RAM_ADDR@l - mtlr r4 - addis r5,0,0x0 - ori r5,r5,((pll_prog_code_end - pll_prog_code_start) >>2) - mtctr r5 - addi r3, r3, -4 - addi r4, r4, -4 -0: - lwzu r0,4(r3) - stwu r0,4(r4) - bdnz 0b /* copy loop */ - blrl -#endif - - /* - * Calculate absolute address in FLASH and jump there - *----------------------------------------------------------------------*/ - - lis r3, CONFIG_SYS_MONITOR_BASE@h - ori r3, r3, CONFIG_SYS_MONITOR_BASE@l - addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET - mtlr r3 - blr - -in_flash: - - /* Initialize some SPRs that are hard to access from C */ - /*----------------------------------------------------------------------*/ - - lis r3, CONFIG_SYS_IMMR@h /* Pass IMMR as arg1 to C routine */ - lis r2, CONFIG_SYS_INIT_SP_ADDR@h - ori r1, r2, CONFIG_SYS_INIT_SP_ADDR@l /* Set up the stack in internal SRAM */ - /* Note: R0 is still 0 here */ - stwu r0, -4(r1) /* Clear final stack frame so that */ - stwu r0, -4(r1) /* stack backtraces terminate cleanly */ - - /* - * Disable serialized ifetch and show cycles - * (i.e. set processor to normal mode) for maximum - * performance. - */ - - li r2, 0x0007 - mtspr ICTRL, r2 - - /* Set up debug mode entry */ - - lis r2, CONFIG_SYS_DER@h - ori r2, r2, CONFIG_SYS_DER@l - mtspr DER, r2 - - /* Let the C-code set up the rest */ - /* */ - /* Be careful to keep code relocatable ! */ - /*----------------------------------------------------------------------*/ - - GET_GOT /* initialize GOT access */ - - /* r3: IMMR */ - bl cpu_init_f /* run low-level CPU init code (from Flash) */ - - mr r3, r21 - /* r3: BOOTFLAG */ - bl board_init_f /* run 1st part of board init code (from Flash) */ - - - .globl _start_of_vectors -_start_of_vectors: - -/* Machine check */ - STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) - -/* Data Storage exception. "Never" generated on the 860. */ - STD_EXCEPTION(0x300, DataStorage, UnknownException) - -/* Instruction Storage exception. "Never" generated on the 860. */ - STD_EXCEPTION(0x400, InstStorage, UnknownException) - -/* External Interrupt exception. */ - STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) - -/* Alignment exception. */ - . = 0x600 -Alignment: - EXCEPTION_PROLOG(SRR0, SRR1) - mfspr r4,DAR - stw r4,_DAR(r21) - mfspr r5,DSISR - stw r5,_DSISR(r21) - addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) - -/* Program check exception */ - . = 0x700 -ProgramCheck: - EXCEPTION_PROLOG(SRR0, SRR1) - addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, - MSR_KERNEL, COPY_EE) - - /* FPU on MPC5xx available. We will use it later. - */ - STD_EXCEPTION(0x800, FPUnavailable, UnknownException) - - /* I guess we could implement decrementer, and may have - * to someday for timekeeping. - */ - STD_EXCEPTION(0x900, Decrementer, timer_interrupt) - STD_EXCEPTION(0xa00, Trap_0a, UnknownException) - STD_EXCEPTION(0xb00, Trap_0b, UnknownException) - STD_EXCEPTION(0xc00, SystemCall, UnknownException) - STD_EXCEPTION(0xd00, SingleStep, UnknownException) - - STD_EXCEPTION(0xe00, Trap_0e, UnknownException) - STD_EXCEPTION(0xf00, Trap_0f, UnknownException) - - /* On the MPC8xx, this is a software emulation interrupt. It occurs - * for all unimplemented and illegal instructions. - */ - STD_EXCEPTION(0x1000, SoftEmu, SoftEmuException) - STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException) - STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException) - STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException) - STD_EXCEPTION(0x1400, DataTLBError, UnknownException) - - STD_EXCEPTION(0x1500, Reserved5, UnknownException) - STD_EXCEPTION(0x1600, Reserved6, UnknownException) - STD_EXCEPTION(0x1700, Reserved7, UnknownException) - STD_EXCEPTION(0x1800, Reserved8, UnknownException) - STD_EXCEPTION(0x1900, Reserved9, UnknownException) - STD_EXCEPTION(0x1a00, ReservedA, UnknownException) - STD_EXCEPTION(0x1b00, ReservedB, UnknownException) - - STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException) - STD_EXCEPTION(0x1d00, InstructionBreakpoint, DebugException) - STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException) - STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException) - - - .globl _end_of_vectors -_end_of_vectors: - - - . = 0x2000 - -/* - * This code finishes saving the registers to the exception frame - * and jumps to the appropriate handler for the exception. - * Register r21 is pointer into trap frame, r1 has new stack pointer. - */ - .globl transfer_to_handler -transfer_to_handler: - stw r22,_NIP(r21) - lis r22,MSR_POW@h - andc r23,r23,r22 - stw r23,_MSR(r21) - SAVE_GPR(7, r21) - SAVE_4GPRS(8, r21) - SAVE_8GPRS(12, r21) - SAVE_8GPRS(24, r21) - mflr r23 - andi. r24,r23,0x3f00 /* get vector offset */ - stw r24,TRAP(r21) - li r22,0 - stw r22,RESULT(r21) - mtspr SPRG2,r22 /* r1 is now kernel sp */ - lwz r24,0(r23) /* virtual address of handler */ - lwz r23,4(r23) /* where to go when done */ - mtspr SRR0,r24 - mtspr SRR1,r20 - mtlr r23 - SYNC - rfi /* jump to handler, enable MMU */ - -int_return: - mfmsr r28 /* Disable interrupts */ - li r4,0 - ori r4,r4,MSR_EE - andc r28,r28,r4 - SYNC /* Some chip revs need this... */ - mtmsr r28 - SYNC - lwz r2,_CTR(r1) - lwz r0,_LINK(r1) - mtctr r2 - mtlr r0 - lwz r2,_XER(r1) - lwz r0,_CCR(r1) - mtspr XER,r2 - mtcrf 0xFF,r0 - REST_10GPRS(3, r1) - REST_10GPRS(13, r1) - REST_8GPRS(23, r1) - REST_GPR(31, r1) - lwz r2,_NIP(r1) /* Restore environment */ - lwz r0,_MSR(r1) - mtspr SRR0,r2 - mtspr SRR1,r0 - lwz r0,GPR0(r1) - lwz r2,GPR2(r1) - lwz r1,GPR1(r1) - SYNC - rfi - - -/* - * unsigned int get_immr (unsigned int mask) - * - * return (mask ? (IMMR & mask) : IMMR); - */ - .globl get_immr -get_immr: - mr r4,r3 /* save mask */ - mfspr r3, IMMR /* IMMR */ - cmpwi 0,r4,0 /* mask != 0 ? */ - beq 4f - and r3,r3,r4 /* IMMR & mask */ -4: - blr - - .globl get_pvr -get_pvr: - mfspr r3, PVR - blr - - -/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - * r3 = dest - * r4 = src - * r5 = length in bytes - * r6 = cachelinesize - */ - .globl relocate_code -relocate_code: - mr r1, r3 /* Set new stack pointer in SRAM */ - mr r9, r4 /* Save copy of global data pointer in SRAM */ - mr r10, r5 /* Save copy of monitor destination Address in SRAM */ - - GET_GOT - mr r3, r5 /* Destination Address */ - lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ - ori r4, r4, CONFIG_SYS_MONITOR_BASE@l - lwz r5, GOT(__init_end) - sub r5, r5, r4 - - /* - * Fix GOT pointer: - * - * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address - * - * Offset: - */ - sub r15, r10, r4 - - /* First our own GOT */ - add r12, r12, r15 - /* the the one used by the C code */ - add r30, r30, r15 - - /* - * Now relocate code - */ - - cmplw cr1,r3,r4 - addi r0,r5,3 - srwi. r0,r0,2 - beq cr1,4f /* In place copy is not necessary */ - beq 4f /* Protect against 0 count */ - mtctr r0 - bge cr1,2f - - la r8,-4(r4) - la r7,-4(r3) -1: lwzu r0,4(r8) - stwu r0,4(r7) - bdnz 1b - b 4f - -2: slwi r0,r0,2 - add r8,r4,r0 - add r7,r3,r0 -3: lwzu r0,-4(r8) - stwu r0,-4(r7) - bdnz 3b - -4: sync - isync - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - - addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET - mtlr r0 - blr - -in_ram: - - /* - * Relocation Function, r12 point to got2+0x8000 - * - * Adjust got2 pointers, no need to check for 0, this code - * already puts a few entries in the table. - */ - li r0,__got2_entries@sectoff@l - la r3,GOT(_GOT2_TABLE_) - lwz r11,GOT(_GOT2_TABLE_) - mtctr r0 - sub r11,r3,r11 - addi r3,r3,-4 -1: lwzu r0,4(r3) - cmpwi r0,0 - beq- 2f - add r0,r0,r11 - stw r0,0(r3) -2: bdnz 1b - - /* - * Now adjust the fixups and the pointers to the fixups - * in case we need to move ourselves again. - */ - li r0,__fixup_entries@sectoff@l - lwz r3,GOT(_FIXUP_TABLE_) - cmpwi r0,0 - mtctr r0 - addi r3,r3,-4 - beq 4f -3: lwzu r4,4(r3) - lwzux r0,r4,r11 - add r0,r0,r11 - stw r10,0(r3) - stw r0,0(r4) - bdnz 3b -4: -clear_bss: - /* - * Now clear BSS segment - */ - lwz r3,GOT(__bss_start) - lwz r4,GOT(_end) - cmplw 0, r3, r4 - beq 6f - - li r0, 0 -5: - stw r0, 0(r3) - addi r3, r3, 4 - cmplw 0, r3, r4 - bne 5b -6: - - mr r3, r9 /* Global Data pointer */ - mr r4, r10 /* Destination Address */ - bl board_init_r - - /* - * Copy exception vector code to low memory - * - * r3: dest_addr - * r7: source address, r8: end address, r9: target address - */ - .globl trap_init -trap_init: - mflr r4 /* save link register */ - GET_GOT - lwz r7, GOT(_start) - lwz r8, GOT(_end_of_vectors) - - li r9, 0x100 /* reset vector always at 0x100 */ - - cmplw 0, r7, r8 - bgelr /* return if r7>=r8 - just in case */ -1: - lwz r0, 0(r7) - stw r0, 0(r9) - addi r7, r7, 4 - addi r9, r9, 4 - cmplw 0, r7, r8 - bne 1b - - /* - * relocate `hdlr' and `int_return' entries - */ - li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET - li r8, Alignment - _start + EXC_OFF_SYS_RESET -2: - bl trap_reloc - addi r7, r7, 0x100 /* next exception vector */ - cmplw 0, r7, r8 - blt 2b - - li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET - bl trap_reloc - - li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET - bl trap_reloc - - li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET - li r8, SystemCall - _start + EXC_OFF_SYS_RESET -3: - bl trap_reloc - addi r7, r7, 0x100 /* next exception vector */ - cmplw 0, r7, r8 - blt 3b - - li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET - li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET -4: - bl trap_reloc - addi r7, r7, 0x100 /* next exception vector */ - cmplw 0, r7, r8 - blt 4b - - mtlr r4 /* restore link register */ - blr - -#if defined(CONFIG_PATI) -/* Program the PLL */ -pll_prog_code_start: - lis r4, (CONFIG_SYS_IMMR + 0x002fc384)@h - ori r4, r4, (CONFIG_SYS_IMMR + 0x002fc384)@l - lis r3, (0x55ccaa33)@h - ori r3, r3, (0x55ccaa33)@l - stw r3, 0(r4) - lis r4, (CONFIG_SYS_IMMR + 0x002fc284)@h - ori r4, r4, (CONFIG_SYS_IMMR + 0x002fc284)@l - lis r3, CONFIG_SYS_PLPRCR@h - ori r3, r3, CONFIG_SYS_PLPRCR@l - stw r3, 0(r4) - addis r3,0,0x0 - ori r3,r3,0xA000 - mtctr r3 -..spinlp: - bdnz ..spinlp /* spin loop */ - blr -pll_prog_code_end: - nop - blr -#endif diff --git a/cpu/mpc5xx/traps.c b/cpu/mpc5xx/traps.c deleted file mode 100644 index 6882c21..0000000 --- a/cpu/mpc5xx/traps.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * linux/arch/ppc/kernel/traps.c - * - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * Modified by Cort Dougan (cort@cs.nmt.edu) - * and Paul Mackerras (paulus@cs.anu.edu.au) - * - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * 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 - */ - -/* - * This file handles the architecture-dependent parts of hardware exceptions - */ - -#include <common.h> -#include <command.h> -#include <kgdb.h> -#include <asm/processor.h> - -#if defined(CONFIG_CMD_BEDBUG) -extern void do_bedbug_breakpoint(struct pt_regs *); -#endif - -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_exception_table(unsigned long); - -/* THIS NEEDS CHANGING to use the board info structure. -*/ -#define END_OF_MEM 0x0001000 - - -/* - * Print stack backtrace - */ -void print_backtrace(unsigned long *sp) -{ - int cnt = 0; - unsigned long i; - - printf("Call backtrace: "); - while (sp) { - if ((uint)sp > END_OF_MEM) - break; - - i = sp[1]; - if (cnt++ % 7 == 0) - printf("\n"); - printf("%08lX ", i); - if (cnt > 32) break; - sp = (unsigned long *)*sp; - } - printf("\n"); -} - -/* - * Print current registers - */ -void show_regs(struct pt_regs * regs) -{ - int i; - printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", - regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); - printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", - regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0, - regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0, - regs->msr&MSR_IR ? 1 : 0, - regs->msr&MSR_DR ? 1 : 0); - - printf("\n"); - for (i = 0; i < 32; i++) { - if ((i % 8) == 0) - { - printf("GPR%02d: ", i); - } - - printf("%08lX ", regs->gpr[i]); - if ((i % 8) == 7) - { - printf("\n"); - } - } -} - - -/* - * General exception handler routine - */ -void _exception(int signr, struct pt_regs *regs) -{ - show_regs(regs); - print_backtrace((unsigned long *)regs->gpr[1]); - panic("Exception in kernel pc %lx signal %d",regs->nip,signr); -} - -/* - * Machine check exception handler routine - */ -void MachineCheckException(struct pt_regs *regs) -{ - unsigned long fixup; - - /* Probing PCI using config cycles cause this exception - * when a device is not present. Catch it and return to - * the PCI exception handler. - */ - if ((fixup = search_exception_table(regs->nip)) != 0) { - regs->nip = fixup; - return; - } - -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - - printf("Machine check in kernel mode.\n"); - printf("Caused by (from msr): "); - printf("regs %p ",regs); - switch( regs->msr & 0x000F0000) { - case (0x80000000>>12): - printf("Machine check signal\n"); - break; - case (0x80000000>>13): - printf("Transfer error ack signal\n"); - break; - case (0x80000000>>14): - printf("Data parity signal\n"); - break; - case (0x80000000>>15): - printf("Address parity signal\n"); - break; - default: - printf("Unknown values in msr\n"); - } - show_regs(regs); - print_backtrace((unsigned long *)regs->gpr[1]); - panic("machine check"); -} - -/* - * Alignment exception handler routine - */ -void AlignmentException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs(regs); - print_backtrace((unsigned long *)regs->gpr[1]); - panic("Alignment Exception"); -} - -/* - * Program check exception handler routine - */ -void ProgramCheckException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs(regs); - print_backtrace((unsigned long *)regs->gpr[1]); - panic("Program Check Exception"); -} - -/* - * Software emulation exception handler routine - */ -void SoftEmuException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs(regs); - print_backtrace((unsigned long *)regs->gpr[1]); - panic("Software Emulation Exception"); -} - - -/* - * Unknown exception handler routine - */ -void UnknownException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", - regs->nip, regs->msr, regs->trap); - _exception(0, regs); -} - -/* - * Debug exception handler routine - */ -void DebugException(struct pt_regs *regs) -{ - printf("Debugger trap at @ %lx\n", regs->nip ); - show_regs(regs); -#if defined(CONFIG_CMD_BEDBUG) - do_bedbug_breakpoint( regs ); -#endif -} diff --git a/cpu/mpc5xx/u-boot.lds b/cpu/mpc5xx/u-boot.lds deleted file mode 100644 index deeb06a..0000000 --- a/cpu/mpc5xx/u-boot.lds +++ /dev/null @@ -1,137 +0,0 @@ -/* - * (C) Copyright 2001 Wolfgang Denk, DENX Software Engineering, wd@denx.de - * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch - * - * 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 - */ - -OUTPUT_ARCH(powerpc) -/* Do we need any of these for elf? - __DYNAMIC = 0; */ -SECTIONS -{ - /* Read-only sections, merged into text segment: */ - . = + SIZEOF_HEADERS; - .interp : { *(.interp) } - .hash : { *(.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .rel.text : { *(.rel.text) } - .rela.text : { *(.rela.text) } - .rel.data : { *(.rel.data) } - .rela.data : { *(.rela.data) } - .rel.rodata : { *(.rel.rodata) } - .rela.rodata : { *(.rela.rodata) } - .rel.got : { *(.rel.got) } - .rela.got : { *(.rela.got) } - .rel.ctors : { *(.rel.ctors) } - .rela.ctors : { *(.rela.ctors) } - .rel.dtors : { *(.rel.dtors) } - .rela.dtors : { *(.rela.dtors) } - .rel.bss : { *(.rel.bss) } - .rela.bss : { *(.rela.bss) } - .rel.plt : { *(.rel.plt) } - .rela.plt : { *(.rela.plt) } - .init : { *(.init) } - .plt : { *(.plt) } - .text : - { - /* WARNING - the following is hand-optimized to fit within */ - /* the sector layout of our flash chips! XXX FIXME XXX */ - - cpu/mpc5xx/start.o (.text) - - *(.text) - *(.got1) - } - _etext = .; - PROVIDE (etext = .); - .rodata : - { - *(.eh_frame) - *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) - } - .fini : { *(.fini) } =0 - .ctors : { *(.ctors) } - .dtors : { *(.dtors) } - - /* Read-write section, merged into data segment: */ - . = (. + 0x00FF) & 0xFFFFFF00; - _erotext = .; - PROVIDE (erotext = .); - .reloc : - { - *(.got) - _GOT2_TABLE_ = .; - *(.got2) - _FIXUP_TABLE_ = .; - *(.fixup) - } - __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; - __fixup_entries = (. - _FIXUP_TABLE_)>>2; - - .data : - { - *(.data) - *(.data1) - *(.sdata) - *(.sdata2) - *(.dynamic) - CONSTRUCTORS - } - _edata = .; - PROVIDE (edata = .); - - . = .; - __u_boot_cmd_start = .; - .u_boot_cmd : { *(.u_boot_cmd) } - __u_boot_cmd_end = .; - - - . = .; - __start___ex_table = .; - __ex_table : { *(__ex_table) } - __stop___ex_table = .; - - . = ALIGN(256); - __init_begin = .; - .text.init : { *(.text.init) } - .data.init : { *(.data.init) } - . = ALIGN(256); - __init_end = .; - - __bss_start = .; - .bss (NOLOAD) : - { - *(.sbss) *(.scommon) - *(.dynbss) - *(.bss) - *(COMMON) - . = ALIGN(4); - } - - _end = . ; - PROVIDE (end = .); -/* . = env_start; - .ppcenv : - { - common/env_embedded.o (.ppcenv) - } -*/ -} |