From: TsiChungLiew Date: Mon, 14 Jan 2008 23:46:19 +0000 (-0600) Subject: ColdFire: Add MCF5227x cpu and MCF52277EVB support-2 X-Git-Tag: v2008.10-rc1~775^2~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c87581027994c148131b2f11aa75501f782ec19a;p=platform%2Fkernel%2Fu-boot.git ColdFire: Add MCF5227x cpu and MCF52277EVB support-2 Signed-off-by: TsiChungLiew Signed-off by: John Rigby --- diff --git a/cpu/mcf5227x/Makefile b/cpu/mcf5227x/Makefile new file mode 100644 index 0000000..d0e9b45 --- /dev/null +++ b/cpu/mcf5227x/Makefile @@ -0,0 +1,48 @@ +# +# (C) Copyright 2000-2004 +# 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 +# + +include $(TOPDIR)/config.mk + +# CFLAGS += -DET_DEBUG + +LIB = lib$(CPU).a + +START = start.o +COBJS = cpu.o speed.o cpu_init.o interrupts.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) + +######################################################################### + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/mcf5227x/config.mk b/cpu/mcf5227x/config.mk new file mode 100644 index 0000000..8d60fd6 --- /dev/null +++ b/cpu/mcf5227x/config.mk @@ -0,0 +1,31 @@ +# +# (C) Copyright 2003 Josef Baumgartner +# +# (C) Copyright 2000-2004 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +PLATFORM_RELFLAGS += -ffixed-d7 -msep-data +ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2) +PLATFORM_CPPFLAGS += -mcpu=5208 -fPIC +else +PLATFORM_CPPFLAGS += -m5307 -fPIC +endif diff --git a/cpu/mcf5227x/cpu.c b/cpu/mcf5227x/cpu.c new file mode 100644 index 0000000..5792a1c --- /dev/null +++ b/cpu/mcf5227x/cpu.c @@ -0,0 +1,75 @@ +/* + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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 +#include +#include + +#include + +DECLARE_GLOBAL_DATA_PTR; + +int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) +{ + volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM); + udelay(1000); + rcm->rcr |= RCM_RCR_SOFTRST; + + /* we don't return! */ + return 0; +}; + +int checkcpu(void) +{ + volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; + u16 msk; + u16 id = 0; + u8 ver; + + puts("CPU: "); + msk = (ccm->cir >> 6); + ver = (ccm->cir & 0x003f); + switch (msk) { + case 0x6c: + id = 52277; + break; + } + + if (id) { + printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, + ver); + printf(" CPU CLK %d Mhz BUS CLK %d Mhz FLB CLK %d Mhz\n", + (int)(gd->cpu_clk / 1000000), + (int)(gd->bus_clk / 1000000), + (int)(gd->flb_clk / 1000000)); + printf(" INP CLK %d Mhz VCO CLK %d Mhz\n", + (int)(gd->inp_clk / 1000000), + (int)(gd->vco_clk / 1000000)); + } + + return 0; +} diff --git a/cpu/mcf5227x/cpu_init.c b/cpu/mcf5227x/cpu_init.c new file mode 100644 index 0000000..71b053d --- /dev/null +++ b/cpu/mcf5227x/cpu_init.c @@ -0,0 +1,146 @@ +/* + * + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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 +#include + +#include +#include + +/* + * Breath some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + * initialize the UPM's + */ +void cpu_init_f(void) +{ + volatile scm1_t *scm1 = (scm1_t *) MMAP_SCM1; + volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; + volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS; + volatile pll_t *pll = (volatile pll_t *)MMAP_PLL; + + /* Workaround, must place before fbcs */ + pll->psr = 0x12; + + scm1->mpr = 0x77777777; + scm1->pacra = 0; + scm1->pacrb = 0; + scm1->pacrc = 0; + scm1->pacrd = 0; + scm1->pacre = 0; + scm1->pacrf = 0; + scm1->pacrg = 0; + scm1->pacri = 0; + +#if (defined(CFG_CS0_BASE) && defined(CFG_CS0_MASK) && defined(CFG_CS0_CTRL)) + fbcs->csar0 = CFG_CS0_BASE; + fbcs->cscr0 = CFG_CS0_CTRL; + fbcs->csmr0 = CFG_CS0_MASK; +#endif + +#if (defined(CFG_CS1_BASE) && defined(CFG_CS1_MASK) && defined(CFG_CS1_CTRL)) + fbcs->csar1 = CFG_CS1_BASE; + fbcs->cscr1 = CFG_CS1_CTRL; + fbcs->csmr1 = CFG_CS1_MASK; +#endif + +#if (defined(CFG_CS2_BASE) && defined(CFG_CS2_MASK) && defined(CFG_CS2_CTRL)) + fbcs->csar2 = CFG_CS2_BASE; + fbcs->cscr2 = CFG_CS2_CTRL; + fbcs->csmr2 = CFG_CS2_MASK; +#endif + +#if (defined(CFG_CS3_BASE) && defined(CFG_CS3_MASK) && defined(CFG_CS3_CTRL)) + fbcs->csar3 = CFG_CS3_BASE; + fbcs->cscr3 = CFG_CS3_CTRL; + fbcs->csmr3 = CFG_CS3_MASK; +#endif + +#if (defined(CFG_CS4_BASE) && defined(CFG_CS4_MASK) && defined(CFG_CS4_CTRL)) + fbcs->csar4 = CFG_CS4_BASE; + fbcs->cscr4 = CFG_CS4_CTRL; + fbcs->csmr4 = CFG_CS4_MASK; +#endif + +#if (defined(CFG_CS5_BASE) && defined(CFG_CS5_MASK) && defined(CFG_CS5_CTRL)) + fbcs->csar5 = CFG_CS5_BASE; + fbcs->cscr5 = CFG_CS5_CTRL; + fbcs->csmr5 = CFG_CS5_MASK; +#endif + +#ifdef CONFIG_FSL_I2C + gpio->par_i2c = GPIO_PAR_I2C_SCL_SCL | GPIO_PAR_I2C_SDA_SDA; +#endif + + icache_enable(); +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r(void) +{ +#ifdef CONFIG_MCFTMR + volatile rtc_t *rtc = (volatile rtc_t *)(CFG_MCFRTC_BASE); + volatile rtcex_t *rtcex = (volatile rtcex_t *)&rtc->extended; + u32 oscillator = CFG_RTC_OSCILLATOR; + + rtcex->gocu = (CFG_RTC_OSCILLATOR >> 16) & 0xFFFF; + rtcex->gocl = CFG_RTC_OSCILLATOR & 0xFFFF; +#endif + + return (0); +} + +void uart_port_conf(void) +{ + volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; + + /* Setup Ports: */ + switch (CFG_UART_PORT) { + case 0: + gpio->par_uart &= + (GPIO_PAR_UART_U0TXD_MASK & GPIO_PAR_UART_U0RXD_MASK); + gpio->par_uart |= + (GPIO_PAR_UART_U0TXD_U0TXD | GPIO_PAR_UART_U0RXD_U0RXD); + break; + case 1: + gpio->par_uart &= + (GPIO_PAR_UART_U1TXD_MASK & GPIO_PAR_UART_U1RXD_MASK); + gpio->par_uart |= + (GPIO_PAR_UART_U1TXD_U1TXD | GPIO_PAR_UART_U1RXD_U1RXD); + break; + case 2: + gpio->par_dspi &= + (GPIO_PAR_DSPI_SIN_MASK & GPIO_PAR_DSPI_SOUT_MASK); + gpio->par_dspi = + (GPIO_PAR_DSPI_SIN_U2RXD | GPIO_PAR_DSPI_SOUT_U2TXD); + break; + } +} diff --git a/cpu/mcf5227x/interrupts.c b/cpu/mcf5227x/interrupts.c new file mode 100644 index 0000000..9572a7b --- /dev/null +++ b/cpu/mcf5227x/interrupts.c @@ -0,0 +1,52 @@ +/* + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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 + */ + +/* CPU specific interrupt routine */ +#include +#include + +int interrupt_init(void) +{ + volatile int0_t *intp = (int0_t *) (CFG_INTR_BASE); + + /* Make sure all interrupts are disabled */ + intp->imrh0 |= 0xFFFFFFFF; + intp->imrl0 |= 0xFFFFFFFF; + + enable_interrupts(); + return 0; +} + +#if defined(CONFIG_MCFTMR) +void dtimer_intr_setup(void) +{ + volatile int0_t *intp = (int0_t *) (CFG_INTR_BASE); + + intp->icr0[CFG_TMRINTR_NO] = CFG_TMRINTR_PRI; + intp->imrh0 &= ~CFG_TMRINTR_MASK; +} +#endif diff --git a/cpu/mcf5227x/speed.c b/cpu/mcf5227x/speed.c new file mode 100644 index 0000000..78c946f --- /dev/null +++ b/cpu/mcf5227x/speed.c @@ -0,0 +1,120 @@ +/* + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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 +#include + +#include + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Low Power Divider specifications + */ +#define CLOCK_LPD_MIN (1 << 0) /* Divider (decoded) */ +#define CLOCK_LPD_MAX (1 << 15) /* Divider (decoded) */ + +#define CLOCK_PLL_FVCO_MAX 540000000 +#define CLOCK_PLL_FVCO_MIN 300000000 + +#define CLOCK_PLL_FSYS_MAX 266666666 +#define CLOCK_PLL_FSYS_MIN 100000000 +#define MHZ 1000000 + +void clock_enter_limp(int lpdiv) +{ + volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM; + int i, j; + + /* Check bounds of divider */ + if (lpdiv < CLOCK_LPD_MIN) + lpdiv = CLOCK_LPD_MIN; + if (lpdiv > CLOCK_LPD_MAX) + lpdiv = CLOCK_LPD_MAX; + + /* Round divider down to nearest power of two */ + for (i = 0, j = lpdiv; j != 1; j >>= 1, i++) ; + + /* Apply the divider to the system clock */ + ccm->cdr = (ccm->cdr & 0xF0FF) | CCM_CDR_LPDIV(i); + + /* Enable Limp Mode */ + ccm->misccr |= CCM_MISCCR_LIMP; +} + +/* + * brief Exit Limp mode + * warning The PLL should be set and locked prior to exiting Limp mode + */ +void clock_exit_limp(void) +{ + volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM; + volatile pll_t *pll = (volatile pll_t *)MMAP_PLL; + + /* Exit Limp mode */ + ccm->misccr &= ~CCM_MISCCR_LIMP; + + /* Wait for the PLL to lock */ + while (!(pll->psr & PLL_PSR_LOCK)) ; +} + +/* + * get_clocks() fills in gd->cpu_clock and gd->bus_clk + */ +int get_clocks(void) +{ + + volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM; + volatile pll_t *pll = (volatile pll_t *)MMAP_PLL; + int vco, temp, pcrvalue, pfdr; + u8 bootmode; + + bootmode = (ccm->ccr & 0x000C) >> 2; + + pcrvalue = pll->pcr & 0xFF0F0FFF; + pfdr = pcrvalue >> 24; + + if (pfdr != 0x1E) { + /* serial mode */ + } else { + /* Normal Mode */ + vco = pfdr * CFG_INPUT_CLKSRC; + gd->vco_clk = vco; + } + + if ((ccm->ccr & CCM_MISCCR_LIMP) == CCM_MISCCR_LIMP) { + /* Limp mode */ + } else { + gd->inp_clk = CFG_INPUT_CLKSRC; /* Input clock */ + + temp = (pll->pcr & PLL_PCR_OUTDIV1_MASK) + 1; + gd->cpu_clk = vco / temp; /* cpu clock */ + + temp = ((pll->pcr & PLL_PCR_OUTDIV2_MASK) >> 4) + 1; + gd->flb_clk = vco / temp; /* flexbus clock */ + gd->bus_clk = gd->flb_clk; + } + + return (0); +} diff --git a/cpu/mcf5227x/start.S b/cpu/mcf5227x/start.S new file mode 100644 index 0000000..0e2db12 --- /dev/null +++ b/cpu/mcf5227x/start.S @@ -0,0 +1,356 @@ +/* + * Copyright (C) 2003 Josef Baumgartner + * Based on code from Bernhard Kuhn + * + * 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 +#include "version.h" + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +/* last three long word reserved for cache status */ +#define ICACHE_STATUS (CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END- 4) +#define DCACHE_STATUS (CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END- 8) +#define CACR_STATUS (CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-12) + +#define _START _start +#define _FAULT _fault + +#define SAVE_ALL \ + move.w #0x2700,%sr; /* disable intrs */ \ + subl #60,%sp; /* space for 15 regs */ \ + moveml %d0-%d7/%a0-%a6,%sp@; + +#define RESTORE_ALL \ + moveml %sp@,%d0-%d7/%a0-%a6; \ + addl #60,%sp; /* space for 15 regs */ \ + rte; + +.text +/* + * Vector table. This is used for initial platform startup. + * These vectors are to catch any un-intended traps. + */ +_vectors: + +INITSP: .long 0x00000000 /* Initial SP */ +INITPC: .long _START /* Initial PC */ +vector02: .long _FAULT /* Access Error */ +vector03: .long _FAULT /* Address Error */ +vector04: .long _FAULT /* Illegal Instruction */ +vector05: .long _FAULT /* Reserved */ +vector06: .long _FAULT /* Reserved */ +vector07: .long _FAULT /* Reserved */ +vector08: .long _FAULT /* Privilege Violation */ +vector09: .long _FAULT /* Trace */ +vector0A: .long _FAULT /* Unimplemented A-Line */ +vector0B: .long _FAULT /* Unimplemented F-Line */ +vector0C: .long _FAULT /* Debug Interrupt */ +vector0D: .long _FAULT /* Reserved */ +vector0E: .long _FAULT /* Format Error */ +vector0F: .long _FAULT /* Unitialized Int. */ + +/* Reserved */ +vector10_17: +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT + +vector18: .long _FAULT /* Spurious Interrupt */ +vector19: .long _FAULT /* Autovector Level 1 */ +vector1A: .long _FAULT /* Autovector Level 2 */ +vector1B: .long _FAULT /* Autovector Level 3 */ +vector1C: .long _FAULT /* Autovector Level 4 */ +vector1D: .long _FAULT /* Autovector Level 5 */ +vector1E: .long _FAULT /* Autovector Level 6 */ +vector1F: .long _FAULT /* Autovector Level 7 */ + +/* TRAP #0 - #15 */ +vector20_2F: +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT + +/* Reserved */ +vector30_3F: +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT + +vector64_127: +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT + +vector128_191: +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT + +vector192_255: +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT +.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT + + .text + + .globl _start +_start: + nop + nop + move.w #0x2700,%sr /* Mask off Interrupt */ + + /* Set vector base register at the beginning of the Flash */ + move.l #CFG_FLASH_BASE, %d0 + movec %d0, %VBR + + move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_RAM_CTRL), %d0 + movec %d0, %RAMBAR1 + + /* initialize general use internal ram */ + move.l #0, %d0 + move.l #(ICACHE_STATUS), %a1 /* icache */ + move.l #(DCACHE_STATUS), %a2 /* icache */ + move.l #(CACR_STATUS), %a3 /* CACR */ + move.l %d0, (%a1) + move.l %d0, (%a2) + move.l %d0, (%a3) + + /* invalidate and disable cache */ + move.l #0x01000000, %d0 /* Invalidate cache cmd */ + movec %d0, %CACR /* Invalidate cache */ + move.l #0, %d0 + movec %d0, %ACR0 + movec %d0, %ACR1 + + /* set stackpointer to end of internal ram to get some stackspace for + the first c-code */ + move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET), %sp + clr.l %sp@- + + move.l #__got_start, %a5 /* put relocation table address to a5 */ + + bsr cpu_init_f /* run low-level CPU init code (from flash) */ + bsr board_init_f /* run low-level board init code (from flash) */ + + /* board_init_f() does not return */ + +/*------------------------------------------------------------------------------*/ + +/* + * 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: + link.w %a6,#0 + move.l 8(%a6), %sp /* set new stack pointer */ + + move.l 12(%a6), %d0 /* Save copy of Global Data pointer */ + move.l 16(%a6), %a0 /* Save copy of Destination Address */ + + move.l #CFG_MONITOR_BASE, %a1 + move.l #__init_end, %a2 + move.l %a0, %a3 + + /* copy the code to RAM */ +1: + move.l (%a1)+, (%a3)+ + cmp.l %a1,%a2 + bgt.s 1b + +/* + * We are done. Do not return, instead branch to second part of board + * initialization, now running from RAM. + */ + move.l %a0, %a1 + add.l #(in_ram - CFG_MONITOR_BASE), %a1 + jmp (%a1) + +in_ram: + +clear_bss: + /* + * Now clear BSS segment + */ + move.l %a0, %a1 + add.l #(_sbss - CFG_MONITOR_BASE),%a1 + move.l %a0, %d1 + add.l #(_ebss - CFG_MONITOR_BASE),%d1 +6: + clr.l (%a1)+ + cmp.l %a1,%d1 + bgt.s 6b + + /* + * fix got table in RAM + */ + move.l %a0, %a1 + add.l #(__got_start - CFG_MONITOR_BASE),%a1 + move.l %a1,%a5 /* * fix got pointer register a5 */ + + move.l %a0, %a2 + add.l #(__got_end - CFG_MONITOR_BASE),%a2 + +7: + move.l (%a1),%d1 + sub.l #_start,%d1 + add.l %a0,%d1 + move.l %d1,(%a1)+ + cmp.l %a2, %a1 + bne 7b + + /* calculate relative jump to board_init_r in ram */ + move.l %a0, %a1 + add.l #(board_init_r - CFG_MONITOR_BASE), %a1 + + /* set parameters for board_init_r */ + move.l %a0,-(%sp) /* dest_addr */ + move.l %d0,-(%sp) /* gd */ + jsr (%a1) + +/*------------------------------------------------------------------------------*/ +/* exception code */ + .globl _fault +_fault: + jmp _fault + .globl _exc_handler + +_exc_handler: + SAVE_ALL + movel %sp,%sp@- + bsr exc_handler + addql #4,%sp + RESTORE_ALL + + .globl _int_handler +_int_handler: + SAVE_ALL + movel %sp,%sp@- + bsr int_handler + addql #4,%sp + RESTORE_ALL + +/*------------------------------------------------------------------------------*/ +/* cache functions */ + .globl icache_enable +icache_enable: + move.l #0x01200000, %d0 /* Invalid cache */ + movec %d0, %CACR + + move.l #(CFG_SDRAM_BASE + 0x1c000), %d0 + movec %d0, %ACR0 + + move.l #0x81600610, %d0 /* Enable cache */ + movec %d0, %CACR + + move.l #(ICACHE_STATUS), %a1 + moveq #1, %d0 + move.l %d0, (%a1) + rts + + .globl icache_disable +icache_disable: + move.l #0x01F00000, %d0 /* Setup cache mask */ + movec %d0, %CACR /* Invalidate icache */ + clr.l %d0 + movec %d0, %ACR0 + movec %d0, %ACR1 + + move.l #(ICACHE_STATUS), %a1 + moveq #0, %d0 + move.l %d0, (%a1) + rts + + .globl icache_status +icache_status: + move.l #(ICACHE_STATUS), %a1 + move.l (%a1), %d0 + rts + + .globl icache_invalid +icache_invalid: + move.l #0x80600610, %d0 /* Invalidate icache */ + movec %d0, %CACR /* Enable and invalidate cache */ + rts + + .globl dcache_enable +dcache_enable: + move.l #0x01200000, %d0 /* Invalid cache */ + movec %d0, %CACR + + move.l #0x81300610, %d0 + movec %d0, %CACR + + move.l #(DCACHE_STATUS), %a1 + moveq #1, %d0 + move.l %d0, (%a1) + rts + + .globl dcache_disable +dcache_disable: + move.l #0x81600610, %d0 /* Setup cache mask */ + movec %d0, %CACR /* Invalidate icache */ + + move.l #(DCACHE_STATUS), %a1 + moveq #0, %d0 + move.l %d0, (%a1) + rts + + .globl dcache_invalid +dcache_invalid: + move.l #0x81100610, %d0 /* Setup cache mask */ + movec %d0, %CACR /* Enable and invalidate cache */ + rts + + .globl dcache_status +dcache_status: + move.l #(DCACHE_STATUS), %a1 + move.l (%a1), %d0 + rts + +/*------------------------------------------------------------------------------*/ + + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", __DATE__, " - ", __TIME__, ")" + .ascii CONFIG_IDENT_STRING, "\0" diff --git a/include/asm-m68k/immap_5227x.h b/include/asm-m68k/immap_5227x.h new file mode 100644 index 0000000..1d1e6f1 --- /dev/null +++ b/include/asm-m68k/immap_5227x.h @@ -0,0 +1,343 @@ +/* + * MCF5227x Internal Memory Map + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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 + */ + +#ifndef __IMMAP_5227X__ +#define __IMMAP_5227X__ + +/* Module Base Addresses */ +#define MMAP_SCM1 (CFG_MBAR + 0x00000000) +#define MMAP_XBS (CFG_MBAR + 0x00004000) +#define MMAP_FBCS (CFG_MBAR + 0x00008000) +#define MMAP_CAN (CFG_MBAR + 0x00020000) +#define MMAP_RTC (CFG_MBAR + 0x0003C000) +#define MMAP_SCM2 (CFG_MBAR + 0x00040010) +#define MMAP_SCM3 (CFG_MBAR + 0x00040070) +#define MMAP_EDMA (CFG_MBAR + 0x00044000) +#define MMAP_INTC0 (CFG_MBAR + 0x00048000) +#define MMAP_INTC1 (CFG_MBAR + 0x0004C000) +#define MMAP_IACK (CFG_MBAR + 0x00054000) +#define MMAP_I2C (CFG_MBAR + 0x00058000) +#define MMAP_DSPI (CFG_MBAR + 0x0005C000) +#define MMAP_UART0 (CFG_MBAR + 0x00060000) +#define MMAP_UART1 (CFG_MBAR + 0x00064000) +#define MMAP_UART2 (CFG_MBAR + 0x00068000) +#define MMAP_DTMR0 (CFG_MBAR + 0x00070000) +#define MMAP_DTMR1 (CFG_MBAR + 0x00074000) +#define MMAP_DTMR2 (CFG_MBAR + 0x00078000) +#define MMAP_DTMR3 (CFG_MBAR + 0x0007C000) +#define MMAP_PIT0 (CFG_MBAR + 0x00080000) +#define MMAP_PIT1 (CFG_MBAR + 0x00084000) +#define MMAP_PWM (CFG_MBAR + 0x00090000) +#define MMAP_EPORT (CFG_MBAR + 0x00094000) +#define MMAP_RCM (CFG_MBAR + 0x000A0000) +#define MMAP_CCM (CFG_MBAR + 0x000A0004) +#define MMAP_GPIO (CFG_MBAR + 0x000A4000) +#define MMAP_ADC (CFG_MBAR + 0x000A8000) +#define MMAP_LCD (CFG_MBAR + 0x000AC000) +#define MMAP_LCD_BGLUT (CFG_MBAR + 0x000AC800) +#define MMAP_LCD_GWLUT (CFG_MBAR + 0x000ACC00) +#define MMAP_USBHW (CFG_MBAR + 0x000B0000) +#define MMAP_USBCAPS (CFG_MBAR + 0x000B0100) +#define MMAP_USBEHCI (CFG_MBAR + 0x000B0140) +#define MMAP_USBOTG (CFG_MBAR + 0x000B01A0) +#define MMAP_SDRAM (CFG_MBAR + 0x000B8000) +#define MMAP_SSI (CFG_MBAR + 0x000BC000) +#define MMAP_PLL (CFG_MBAR + 0x000C0000) + +#include +#include +#include +#include +#include +#include + +/* Interrupt Controller (INTC) */ +typedef struct int0_ctrl { + u32 iprh0; /* 0x00 Pending Register High */ + u32 iprl0; /* 0x04 Pending Register Low */ + u32 imrh0; /* 0x08 Mask Register High */ + u32 imrl0; /* 0x0C Mask Register Low */ + u32 frch0; /* 0x10 Force Register High */ + u32 frcl0; /* 0x14 Force Register Low */ + u16 res1; /* 0x18 - 0x19 */ + u16 icfg0; /* 0x1A Configuration Register */ + u8 simr0; /* 0x1C Set Interrupt Mask */ + u8 cimr0; /* 0x1D Clear Interrupt Mask */ + u8 clmask0; /* 0x1E Current Level Mask */ + u8 slmask; /* 0x1F Saved Level Mask */ + u32 res2[8]; /* 0x20 - 0x3F */ + u8 icr0[64]; /* 0x40 - 0x7F Control registers */ + u32 res3[24]; /* 0x80 - 0xDF */ + u8 swiack0; /* 0xE0 Software Interrupt ack */ + u8 res4[3]; /* 0xE1 - 0xE3 */ + u8 Lniack0_1; /* 0xE4 Level n interrupt ack */ + u8 res5[3]; /* 0xE5 - 0xE7 */ + u8 Lniack0_2; /* 0xE8 Level n interrupt ack */ + u8 res6[3]; /* 0xE9 - 0xEB */ + u8 Lniack0_3; /* 0xEC Level n interrupt ack */ + u8 res7[3]; /* 0xED - 0xEF */ + u8 Lniack0_4; /* 0xF0 Level n interrupt ack */ + u8 res8[3]; /* 0xF1 - 0xF3 */ + u8 Lniack0_5; /* 0xF4 Level n interrupt ack */ + u8 res9[3]; /* 0xF5 - 0xF7 */ + u8 Lniack0_6; /* 0xF8 Level n interrupt ack */ + u8 resa[3]; /* 0xF9 - 0xFB */ + u8 Lniack0_7; /* 0xFC Level n interrupt ack */ + u8 resb[3]; /* 0xFD - 0xFF */ +} int0_t; + +typedef struct int1_ctrl { + /* Interrupt Controller 1 */ + u32 iprh1; /* 0x00 Pending Register High */ + u32 iprl1; /* 0x04 Pending Register Low */ + u32 imrh1; /* 0x08 Mask Register High */ + u32 imrl1; /* 0x0C Mask Register Low */ + u32 frch1; /* 0x10 Force Register High */ + u32 frcl1; /* 0x14 Force Register Low */ + u16 res1; /* 0x18 */ + u16 icfg1; /* 0x1A Configuration Register */ + u8 simr1; /* 0x1C Set Interrupt Mask */ + u8 cimr1; /* 0x1D Clear Interrupt Mask */ + u16 res2; /* 0x1E - 0x1F */ + u32 res3[8]; /* 0x20 - 0x3F */ + u8 icr1[64]; /* 0x40 - 0x7F */ + u32 res4[24]; /* 0x80 - 0xDF */ + u8 swiack1; /* 0xE0 Software Interrupt ack */ + u8 res5[3]; /* 0xE1 - 0xE3 */ + u8 Lniack1_1; /* 0xE4 Level n interrupt ack */ + u8 res6[3]; /* 0xE5 - 0xE7 */ + u8 Lniack1_2; /* 0xE8 Level n interrupt ack */ + u8 res7[3]; /* 0xE9 - 0xEB */ + u8 Lniack1_3; /* 0xEC Level n interrupt ack */ + u8 res8[3]; /* 0xED - 0xEF */ + u8 Lniack1_4; /* 0xF0 Level n interrupt ack */ + u8 res9[3]; /* 0xF1 - 0xF3 */ + u8 Lniack1_5; /* 0xF4 Level n interrupt ack */ + u8 resa[3]; /* 0xF5 - 0xF7 */ + u8 Lniack1_6; /* 0xF8 Level n interrupt ack */ + u8 resb[3]; /* 0xF9 - 0xFB */ + u8 Lniack1_7; /* 0xFC Level n interrupt ack */ + u8 resc[3]; /* 0xFD - 0xFF */ +} int1_t; + +/* Global Interrupt Acknowledge (IACK) */ +typedef struct iack { + u8 resv0[0xE0]; + u8 gswiack; + u8 resv1[0x3]; + u8 gl1iack; + u8 resv2[0x3]; + u8 gl2iack; + u8 resv3[0x3]; + u8 gl3iack; + u8 resv4[0x3]; + u8 gl4iack; + u8 resv5[0x3]; + u8 gl5iack; + u8 resv6[0x3]; + u8 gl6iack; + u8 resv7[0x3]; + u8 gl7iack; +} iack_t; + +/* Edge Port Module (EPORT) */ +typedef struct eport { + u16 eppar; + u8 epddr; + u8 epier; + u8 epdr; + u8 eppdr; + u8 epfr; +} eport_t; + +/* Reset Controller Module (RCM) */ +typedef struct rcm { + u8 rcr; + u8 rsr; +} rcm_t; + +/* Chip Configuration Module (CCM) */ +typedef struct ccm { + u16 ccr; /* Chip Configuration (Rd-only) */ + u16 resv1; + u16 rcon; /* Reset Configuration (Rd-only) */ + u16 cir; /* Chip Identification (Rd-only) */ + u32 resv2; + u16 misccr; /* Miscellaneous Control */ + u16 cdr; /* Clock Divider */ + u16 uocsr; /* USB On-the-Go Controller Status */ + u16 resv4; + u16 sbfsr; /* Serial Boot Status */ + u16 sbfcr; /* Serial Boot Control */ +} ccm_t; + +/* General Purpose I/O Module (GPIO) */ +typedef struct gpio { + /* Port Output Data Registers */ + u8 podr_be; /* 0x00 */ + u8 podr_cs; /* 0x01 */ + u8 podr_fbctl; /* 0x02 */ + u8 podr_i2c; /* 0x03 */ + u8 rsvd1; /* 0x04 */ + u8 podr_uart; /* 0x05 */ + u8 podr_dspi; /* 0x06 */ + u8 podr_timer; /* 0x07 */ + u8 podr_lcdctl; /* 0x08 */ + u8 podr_lcddatah; /* 0x09 */ + u8 podr_lcddatam; /* 0x0A */ + u8 podr_lcddatal; /* 0x0B */ + + /* Port Data Direction Registers */ + u8 pddr_be; /* 0x0C */ + u8 pddr_cs; /* 0x0D */ + u8 pddr_fbctl; /* 0x0E */ + u8 pddr_i2c; /* 0x0F */ + u8 rsvd2; /* 0x10 */ + u8 pddr_uart; /* 0x11 */ + u8 pddr_dspi; /* 0x12 */ + u8 pddr_timer; /* 0x13 */ + u8 pddr_lcdctl; /* 0x14 */ + u8 pddr_lcddatah; /* 0x15 */ + u8 pddr_lcddatam; /* 0x16 */ + u8 pddr_lcddatal; /* 0x17 */ + + /* Port Pin Data/Set Data Registers */ + u8 ppdsdr_be; /* 0x18 */ + u8 ppdsdr_cs; /* 0x19 */ + u8 ppdsdr_fbctl; /* 0x1A */ + u8 ppdsdr_i2c; /* 0x1B */ + u8 rsvd3; /* 0x1C */ + u8 ppdsdr_uart; /* 0x1D */ + u8 ppdsdr_dspi; /* 0x1E */ + u8 ppdsdr_timer; /* 0x1F */ + u8 ppdsdr_lcdctl; /* 0x20 */ + u8 ppdsdr_lcddatah; /* 0x21 */ + u8 ppdsdr_lcddatam; /* 0x22 */ + u8 ppdsdr_lcddatal; /* 0x23 */ + + /* Port Clear Output Data Registers */ + u8 pclrr_be; /* 0x24 */ + u8 pclrr_cs; /* 0x25 */ + u8 pclrr_fbctl; /* 0x26 */ + u8 pclrr_i2c; /* 0x27 */ + u8 rsvd4; /* 0x28 */ + u8 pclrr_uart; /* 0x29 */ + u8 pclrr_dspi; /* 0x2A */ + u8 pclrr_timer; /* 0x2B */ + u8 pclrr_lcdctl; /* 0x2C */ + u8 pclrr_lcddatah; /* 0x2D */ + u8 pclrr_lcddatam; /* 0x2E */ + u8 pclrr_lcddatal; /* 0x2F */ + + /* Pin Assignment Registers */ + u8 par_be; /* 0x30 */ + u8 par_cs; /* 0x31 */ + u8 par_fbctl; /* 0x32 */ + u8 par_i2c; /* 0x33 */ + u16 par_uart; /* 0x34 */ + u8 par_dspi; /* 0x36 */ + u8 par_timer; /* 0x37 */ + u8 par_lcdctl; /* 0x38 */ + u8 par_irq; /* 0x39 */ + u16 rsvd6; /* 0x3A - 0x3B */ + u32 par_lcdh; /* 0x3C */ + u32 par_lcdl; /* 0x40 */ + + /* Mode select control registers */ + u8 mscr_fb; /* 0x44 */ + u8 mscr_sdram; /* 0x45 */ + + u16 rsvd7; /* 0x46 - 0x47 */ + u8 dscr_dspi; /* 0x48 */ + u8 dscr_timer; /* 0x49 */ + u8 dscr_i2c; /* 0x4A */ + u8 dscr_lcd; /* 0x4B */ + u8 dscr_debug; /* 0x4C */ + u8 dscr_clkrst; /* 0x4D */ + u8 dscr_irq; /* 0x4E */ + u8 dscr_uart; /* 0x4F */ +} gpio_t; + +/* SDRAM Controller (SDRAMC) */ +typedef struct sdramc { + u32 sdmr; /* Mode/Extended Mode */ + u32 sdcr; /* Control */ + u32 sdcfg1; /* Configuration 1 */ + u32 sdcfg2; /* Chip Select */ + u8 resv0[0x100]; + u32 sdcs0; /* Mode/Extended Mode */ + u32 sdcs1; /* Mode/Extended Mode */ +} sdramc_t; + +/* Phase Locked Loop (PLL) */ +typedef struct pll { + u32 pcr; /* PLL Control */ + u32 psr; /* PLL Status */ +} pll_t; + +/* System Control Module register */ +typedef struct scm1 { + u32 mpr; /* 0x00 Master Privilege */ + u32 rsvd1[7]; + u32 pacra; /* 0x20 */ + u32 pacrb; /* 0x24 */ + u32 pacrc; /* 0x28 */ + u32 pacrd; /* 0x2C */ + u32 rsvd2[4]; + u32 pacre; /* 0x40 */ + u32 pacrf; /* 0x44 */ + u32 pacrg; /* 0x48 */ + u32 rsvd3; + u32 pacri; /* 0x50 */ +} scm1_t; + +typedef struct scm2_ctrl { + u8 res1[3]; /* 0x00 - 0x02 */ + u8 wcr; /* 0x03 wakeup control */ + u16 res2; /* 0x04 - 0x05 */ + u16 cwcr; /* 0x06 Core Watchdog Control */ + u8 res3[3]; /* 0x08 - 0x0A */ + u8 cwsr; /* 0x0B Core Watchdog Service */ + u8 res4[2]; /* 0x0C - 0x0D */ + u8 scmisr; /* 0x0F Interrupt Status */ + u32 res5; /* 0x20 */ + u32 bcr; /* 0x24 Burst Configuration */ +} scm2_t; + +typedef struct scm3_ctrl { + u32 cfadr; /* 0x00 Core Fault Address */ + u8 res7; /* 0x04 */ + u8 cfier; /* 0x05 Core Fault Interrupt Enable */ + u8 cfloc; /* 0x06 Core Fault Location */ + u8 cfatr; /* 0x07 Core Fault Attributes */ + u32 cfdtr; /* 0x08 Core Fault Data */ +} scm3_t; + +typedef struct rtcex { + u32 rsvd1[3]; + u32 gocu; + u32 gocl; +} rtcex_t; +#endif /* __IMMAP_5227X__ */