From: Angelo Dureghello angelo@sysam.it

Add support for Freescale Coldfire mcf5307 cpu.

Signed-off-by: Angelo Dureghello angelo@sysam.it Cc: Jason Jin jason.jin@freescale.com --- Changes for v2: - add MAINTAINERS entry - add boards.cfg entry Changes for v3: - fix code format issues Changes for v4: - removed MAINTAINERS file / entry - fixed macroes adding do {} while(0) - removed volatile - accessing cpu registers through structures/pointers Changes for v5: - updated for Kconfig / defconfig --- arch/m68k/Kconfig | 4 + arch/m68k/cpu/mcf530x/Makefile | 9 ++ arch/m68k/cpu/mcf530x/config.mk | 12 ++ arch/m68k/cpu/mcf530x/cpu.c | 36 ++++++ arch/m68k/cpu/mcf530x/cpu_init.c | 160 +++++++++++++++++++++++ arch/m68k/cpu/mcf530x/interrupts.c | 29 +++++ arch/m68k/cpu/mcf530x/speed.c | 23 ++++ arch/m68k/cpu/mcf530x/start.S | 256 +++++++++++++++++++++++++++++++++++++ arch/m68k/include/asm/cache.h | 3 +- arch/m68k/include/asm/immap.h | 23 ++++ arch/m68k/include/asm/immap_5307.h | 118 +++++++++++++++++ arch/m68k/include/asm/m5307.h | 70 ++++++++++ arch/m68k/include/asm/timer.h | 3 +- 13 files changed, 744 insertions(+), 2 deletions(-) create mode 100644 arch/m68k/cpu/mcf530x/Makefile create mode 100644 arch/m68k/cpu/mcf530x/config.mk create mode 100644 arch/m68k/cpu/mcf530x/cpu.c create mode 100644 arch/m68k/cpu/mcf530x/cpu_init.c create mode 100644 arch/m68k/cpu/mcf530x/interrupts.c create mode 100644 arch/m68k/cpu/mcf530x/speed.c create mode 100644 arch/m68k/cpu/mcf530x/start.S create mode 100644 arch/m68k/include/asm/immap_5307.h create mode 100644 arch/m68k/include/asm/m5307.h

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 6cda7db..b361c48 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -71,6 +71,9 @@ config TARGET_M5475EVB config TARGET_M5485EVB bool "Support M5485EVB"

+config TARGET_AMCORE + bool "Support AMCORE" + endchoice

source "board/BuS/eb_cpu5282/Kconfig" @@ -94,5 +97,6 @@ source "board/freescale/m54451evb/Kconfig" source "board/freescale/m54455evb/Kconfig" source "board/freescale/m547xevb/Kconfig" source "board/freescale/m548xevb/Kconfig" +source "board/sysam/amcore/Kconfig"

endmenu diff --git a/arch/m68k/cpu/mcf530x/Makefile b/arch/m68k/cpu/mcf530x/Makefile new file mode 100644 index 0000000..9492bde --- /dev/null +++ b/arch/m68k/cpu/mcf530x/Makefile @@ -0,0 +1,9 @@ +# +# (C) Copyright 2014 Angelo Dureghello angelo@sysam.it +# +# SPDX-License-Identifier: GPL-2.0+ +# + +extra-y = start.o +obj-y = interrupts.o cpu.o speed.o cpu_init.o + diff --git a/arch/m68k/cpu/mcf530x/config.mk b/arch/m68k/cpu/mcf530x/config.mk new file mode 100644 index 0000000..aef72d7 --- /dev/null +++ b/arch/m68k/cpu/mcf530x/config.mk @@ -0,0 +1,12 @@ +# +# (C) Copyright 2014 Angelo Dureghello angelo@sysam.it +# +# SPDX-License-Identifier: GPL-2.0+ +# + +cfg=$(srctree)/include/configs/$(CONFIG_SYS_CONFIG_NAME:"%"=%).h +is5307:=$(shell grep CONFIG_M5307 $(cfg)) + +ifneq (,$(findstring CONFIG_M5307,$(is5307))) +PLATFORM_CPPFLAGS += -mcpu=5307 +endif diff --git a/arch/m68k/cpu/mcf530x/cpu.c b/arch/m68k/cpu/mcf530x/cpu.c new file mode 100644 index 0000000..78f4385 --- /dev/null +++ b/arch/m68k/cpu/mcf530x/cpu.c @@ -0,0 +1,36 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#include <common.h> +#include <asm/immap.h> +#include <asm/io.h> + +#ifdef CONFIG_M5307 +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + sim_t *sim = (sim_t *)(MMAP_SIM); + + /* enable watchdog/reset, set timeout to 0 and wait */ + out_8(&sim->sypcr, SYPCR_SWE | SYPCR_SWRI); + + /* wait for watchdog reset */ + for (;;) + ; + + /* we don't return! */ + return 0; +} + +int checkcpu(void) +{ + char buf[32]; + + printf("CPU: Freescale Coldfire MCF5307 at %s MHz\n", + strmhz(buf, CONFIG_SYS_CPU_CLK)); + return 0; +} +#endif diff --git a/arch/m68k/cpu/mcf530x/cpu_init.c b/arch/m68k/cpu/mcf530x/cpu_init.c new file mode 100644 index 0000000..80dc239 --- /dev/null +++ b/arch/m68k/cpu/mcf530x/cpu_init.c @@ -0,0 +1,160 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#include <common.h> +#include <watchdog.h> +#include <asm/immap.h> +#include <asm/io.h> + +#if defined(CONFIG_M5307) +/* + * Simple mcf5307 chip select module init. + * + * Note: this chip has an issue reported in the device "errata": + * MCF5307ER Rev 4.2 reports @ section 35: + * Corrupted Return PC in Exception Stack Frame + * When processing an autovectored interrupt an error can occur that + * causes 0xFFFFFFFF to be written as the return PC value in the + * exception stack frame. The problem is caused by a conflict between + * an internal autovector access and a chip select mapped to the IACK + * address space (0xFFFFXXXX). + * Workaround: + * Set the C/I bit in the chip select mask register (CSMR) for the + * chip select that is mapped to 0xFFFFXXXX. + * This will prevent the chip select from asserting for IACK accesses. + */ + +#define MCF5307_SP_ERR_FIX(cs_base, mask) \ + do { \ + if (((cs_base<<16)+(in_be32(&mask)&0xffff0000)) >= \ + 0xffff0000) \ + setbits_be32(&mask, CSMR_CI); \ + } while (0) + +void init_csm(void) +{ + csm_t *csm = (csm_t *)(MMAP_CSM); + +#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) && \ + defined(CONFIG_SYS_CS0_CTRL)) + out_be16(&csm->csar0, CONFIG_SYS_CS0_BASE); + out_be32(&csm->csmr0, CONFIG_SYS_CS0_MASK); + out_be16(&csm->cscr0, CONFIG_SYS_CS0_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS0_BASE, csm->csmr0); +#else +#warning "Chip Select 0 are not initialized/used" +#endif +#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) && \ + defined(CONFIG_SYS_CS1_CTRL)) + out_be16(&csm->csar1, CONFIG_SYS_CS1_BASE); + out_be32(&csm->csmr1, CONFIG_SYS_CS1_MASK); + out_be16(&csm->cscr1, CONFIG_SYS_CS1_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS1_BASE, csm->csmr1); +#endif +#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) && \ + defined(CONFIG_SYS_CS2_CTRL)) + out_be16(&csm->csar2, CONFIG_SYS_CS2_BASE); + out_be32(&csm->csmr2, CONFIG_SYS_CS2_MASK); + out_be16(&csm->cscr2, CONFIG_SYS_CS2_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS2_BASE, csm->csmr2); +#endif +#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) && \ + defined(CONFIG_SYS_CS3_CTRL)) + out_be16(&csm->csar3, CONFIG_SYS_CS3_BASE); + out_be32(&csm->csmr3, CONFIG_SYS_CS3_MASK); + out_be16(&csm->cscr3, CONFIG_SYS_CS3_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS3_BASE, csm->csmr3); +#endif +#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) && \ + defined(CONFIG_SYS_CS4_CTRL)) + out_be16(&csm->csar4, CONFIG_SYS_CS4_BASE); + out_be32(&csm->csmr4, CONFIG_SYS_CS4_MASK); + out_be16(&csm->cscr4, CONFIG_SYS_CS4_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS4_BASE, csm->csmr4); +#endif +#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) && \ + defined(CONFIG_SYS_CS5_CTRL)) + out_be16(&csm->csar5, CONFIG_SYS_CS5_BASE); + out_be32(&csm->csmr5, CONFIG_SYS_CS5_MASK); + out_be16(&csm->cscr5, CONFIG_SYS_CS5_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS5_BASE, csm->csmr5); +#endif +#if (defined(CONFIG_SYS_CS6_BASE) && defined(CONFIG_SYS_CS6_MASK) && \ + defined(CONFIG_SYS_CS6_CTRL)) + out_be16(&csm->csar6, CONFIG_SYS_CS6_BASE); + out_be32(&csm->csmr6, CONFIG_SYS_CS6_MASK); + out_be16(&csm->cscr6, CONFIG_SYS_CS6_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS6_BASE, csm->csmr6); +#endif +#if (defined(CONFIG_SYS_CS7_BASE) && defined(CONFIG_SYS_CS7_MASK) && \ + defined(CONFIG_SYS_CS7_CTRL)) + out_be16(&csm->csar7, CONFIG_SYS_CS7_BASE); + out_be32(&csm->csmr7, CONFIG_SYS_CS7_MASK); + out_be16(&csm->cscr7, CONFIG_SYS_CS7_CTRL); + MCF5307_SP_ERR_FIX(CONFIG_SYS_CS7_BASE, csm->csmr7); +#endif +} + +/* + * Set up the memory map and initialize registers + */ +void cpu_init_f(void) +{ + sim_t *sim = (sim_t *)(MMAP_SIM); + + out_8(&sim->sypcr, 0x00); + out_8(&sim->swivr, 0x0f); + out_8(&sim->swsr, 0x00); + out_8(&sim->mpark, 0x00); + + intctrl_t *icr = (intctrl_t *)(MMAP_INTC); + + /* timer 2 not masked */ + out_be32(&icr->imr, 0xfffffbff); + + out_8(&icr->icr0, 0x00); /* sw watchdog */ + out_8(&icr->icr1, 0x00); /* timer 1 */ + out_8(&icr->icr2, 0x88); /* timer 2 */ + out_8(&icr->icr3, 0x00); /* i2c */ + out_8(&icr->icr4, 0x00); /* uart 0 */ + out_8(&icr->icr5, 0x00); /* uart 1 */ + out_8(&icr->icr6, 0x00); /* dma 0 */ + out_8(&icr->icr7, 0x00); /* dma 1 */ + out_8(&icr->icr8, 0x00); /* dma 2 */ + out_8(&icr->icr9, 0x00); /* dma 3 */ + + /* Chipselect Init */ + init_csm(); + + /* enable data/instruction cache now */ + icache_enable(); +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r(void) +{ + return 0; +} + +void uart_port_conf(void) +{ +} + +void arch_preboot_os(void) +{ + /* + * OS can change interrupt offsets and are about to boot the OS so + * we need to make sure we disable all async interrupts. + */ + intctrl_t *icr = (intctrl_t *)(MMAP_INTC); + + out_8(&icr->icr1, 0x00); /* timer 1 */ + out_8(&icr->icr2, 0x00); /* timer 2 */ +} +#endif diff --git a/arch/m68k/cpu/mcf530x/interrupts.c b/arch/m68k/cpu/mcf530x/interrupts.c new file mode 100644 index 0000000..bf4038d --- /dev/null +++ b/arch/m68k/cpu/mcf530x/interrupts.c @@ -0,0 +1,29 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#include <common.h> +#include <asm/immap.h> +#include <asm/io.h> + +#ifdef CONFIG_M5307 +int interrupt_init(void) +{ + enable_interrupts(); + + return 0; +} + +void dtimer_intr_setup(void) +{ + intctrl_t *icr = (intctrl_t *)(MMAP_INTC); + + /* clearing TIMER2 mask, so enabling the related interrupt */ + out_be32(&icr->imr, in_be32(&icr->imr) & ~0x00000400); + /* set TIMER2 interrupt priority */ + out_8(&icr->icr2, CONFIG_SYS_TMRINTR_PRI); +} +#endif diff --git a/arch/m68k/cpu/mcf530x/speed.c b/arch/m68k/cpu/mcf530x/speed.c new file mode 100644 index 0000000..3cf1986 --- /dev/null +++ b/arch/m68k/cpu/mcf530x/speed.c @@ -0,0 +1,23 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/immap.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* get_clocks() fills in gd->cpu_clock and gd->bus_clk */ +int get_clocks(void) +{ +#if defined(CONFIG_M5307) + gd->bus_clk = CONFIG_SYS_CLK; + gd->cpu_clk = CONFIG_SYS_CPU_CLK; +#endif + + return 0; +} diff --git a/arch/m68k/cpu/mcf530x/start.S b/arch/m68k/cpu/mcf530x/start.S new file mode 100644 index 0000000..2ec6366 --- /dev/null +++ b/arch/m68k/cpu/mcf530x/start.S @@ -0,0 +1,256 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#include <asm-offsets.h> +#include <config.h> +#include <timestamp.h> +#include "version.h" +#include <asm/cache.h> + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +#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 + +/* + * If we come from a pre-loader we don't need an initial exception + * table. + */ +#if !defined(CONFIG_MONITOR_IS_IN_RAM) + +.text +/* + * Vector table. This is used for initial platform startup. + * These vectors are to catch any un-intended traps. + */ +_vectors: + +.long 0x00000000 /* Flash offset is 0 until we setup CS0 */ +#if defined(CONFIG_M5307) && \ + (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE) +.long _start - CONFIG_SYS_TEXT_BASE +#else +.long _START +#endif + +.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 + +.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 + +.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 + +.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 + +#endif + + .text + .globl _start +_start: + nop + nop + move.w #0x2700,%sr + + /* set MBAR address + valid flag */ + move.l #(CONFIG_SYS_MBAR + 1), %d0 + move.c %d0, %MBAR + + move.l #(CONFIG_SYS_INIT_RAM_ADDR + 1), %d0 + move.c %d0, %RAMBAR + + /* DS 4.8.2 (Cache Organization) invalidate and disable cache */ + move.l #CF_CACR_CINVA, %d0 + movec %d0, %CACR + move.l #0, %d0 + movec %d0, %ACR0 + movec %d0, %ACR1 + + /* + * if we come from a pre-loader we have no exception table and + * therefore no VBR to set + */ +#if !defined(CONFIG_MONITOR_IS_IN_RAM) + move.l #CONFIG_SYS_FLASH_BASE, %d0 + movec %d0, %VBR +#endif + + /* initialize general use internal ram */ + move.l #0, %d0 + move.l #(ICACHE_STATUS), %a1 /* icache */ + move.l #(DCACHE_STATUS), %a2 /* dcache */ + move.l %d0, (%a1) + move.l %d0, (%a2) + + /* + * set stackpointer to internal sram end - 80 + * (global data struct size + some bytes) + * get some stackspace for the first c-code, + */ + move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp + clr.l %sp@- + + /* put relocation table address to a5 */ + move.l #__got_start, %a5 + + /* run low-level CPU init code (from flash) */ + bsr cpu_init_f + + /* run low-level board init code (from flash) */ + bsr board_init_f + + /* 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. + * + */ + .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 #CONFIG_SYS_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 - CONFIG_SYS_MONITOR_BASE), %a1 + jmp (%a1) + +in_ram: + +clear_bss: + /* + * Now clear BSS segment + */ + move.l %a0, %a1 + add.l #(_sbss - CONFIG_SYS_MONITOR_BASE),%a1 + move.l %a0, %d1 + add.l #(_ebss - CONFIG_SYS_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 - CONFIG_SYS_MONITOR_BASE),%a1 + /* * fix got pointer register a5 */ + move.l %a1,%a5 + + move.l %a0, %a2 + add.l #(__got_end - CONFIG_SYS_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 - CONFIG_SYS_MONITOR_BASE), %a1 + + /* set parameters for board_init_r */ + move.l %a0,-(%sp) /* dest_addr */ + move.l %d0,-(%sp) /* gd */ +#if defined(DEBUG) && (CONFIG_SYS_TEXT_BASE!=CONFIG_SYS_INT_FLASH_BASE) && \ + defined(CONFIG_SYS_HALT_BEFOR_RAM_JUMP) + halt +#endif + 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 + +/*--------------------------------------------------------------------------*/ + + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" + .ascii CONFIG_IDENT_STRING, "\0" + .align 4 diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h index 59fa33b..812f25c 100644 --- a/arch/m68k/include/asm/cache.h +++ b/arch/m68k/include/asm/cache.h @@ -15,7 +15,8 @@ #define CONFIG_CF_V2 #endif

-#if defined(CONFIG_MCF532x) || defined(CONFIG_MCF5301x) +#if defined(CONFIG_MCF530x) || defined(CONFIG_MCF532x) || \ + defined(CONFIG_MCF5301x) #define CONFIG_CF_V3 #endif

diff --git a/arch/m68k/include/asm/immap.h b/arch/m68k/include/asm/immap.h index f0a76f4..1c6bfce 100644 --- a/arch/m68k/include/asm/immap.h +++ b/arch/m68k/include/asm/immap.h @@ -240,6 +240,29 @@ #endif #endif /* CONFIG_M5282 */

+#ifdef CONFIG_M5307 +#include <asm/immap_5307.h> +#include <asm/m5307.h> + +#define CONFIG_SYS_UART_BASE (MMAP_UART0 + \ + (CONFIG_SYS_UART_PORT * 0x40)) +#define CONFIG_SYS_INTR_BASE (MMAP_INTC) +#define CONFIG_SYS_NUM_IRQS (64) + +/* Timer */ +#ifdef CONFIG_MCFTMR +#define CONFIG_SYS_UDELAY_BASE (MMAP_DTMR0) +#define CONFIG_SYS_TMR_BASE (MMAP_DTMR1) +#define CONFIG_SYS_TMRPND_REG (((volatile intctrl_t *)(CONFIG_SYS_INTR_BASE))->ipr) +#define CONFIG_SYS_TMRINTR_NO (31) +#define CONFIG_SYS_TMRINTR_MASK (0x00000400) +#define CONFIG_SYS_TMRINTR_PEND (CONFIG_SYS_TMRINTR_MASK) +#define CONFIG_SYS_TMRINTR_PRI (MCFSIM_ICR_AUTOVEC | \ + MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3) +#define CONFIG_SYS_TIMER_PRESCALER (((gd->bus_clk / 1000000) - 1) << 8) +#endif +#endif /* CONFIG_M5307 */ + #if defined(CONFIG_MCF5301x) #include <asm/immap_5301x.h> #include <asm/m5301x.h> diff --git a/arch/m68k/include/asm/immap_5307.h b/arch/m68k/include/asm/immap_5307.h new file mode 100644 index 0000000..1ba721f --- /dev/null +++ b/arch/m68k/include/asm/immap_5307.h @@ -0,0 +1,118 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#ifndef __IMMAP_5307__ +#define __IMMAP_5307__ + +#define MMAP_SIM (CONFIG_SYS_MBAR + 0x00000000) +#define MMAP_INTC (CONFIG_SYS_MBAR + 0x00000040) +#define MMAP_CSM (CONFIG_SYS_MBAR + 0x00000080) +#define MMAP_DRAMC (CONFIG_SYS_MBAR + 0x00000100) +#define MMAP_DTMR0 (CONFIG_SYS_MBAR + 0x00000140) +#define MMAP_DTMR1 (CONFIG_SYS_MBAR + 0x00000180) +#define MMAP_UART0 (CONFIG_SYS_MBAR + 0x000001C0) +#define MMAP_UART1 (CONFIG_SYS_MBAR + 0x00000200) +#define MMAP_GPIO (CONFIG_SYS_MBAR + 0x00000244) + +typedef struct sim { + u8 rsr; + u8 sypcr; + u8 swivr; + u8 swsr; + u16 par; + u8 irqpar; + u8 res1; + u8 pllcr; + u8 res2; + u16 res3; + u8 mpark; + u8 res4; + u16 res5; + u32 res6; +} sim_t; + +typedef struct intctrl { + u32 ipr; + u32 imr; + u16 res7; + u8 res8; + u8 avr; + u8 icr0; + u8 icr1; + u8 icr2; + u8 icr3; + u8 icr4; + u8 icr5; + u8 icr6; + u8 icr7; + u8 icr8; + u8 icr9; + u16 res9; +} intctrl_t; + +typedef struct csm { + u16 csar0; /* Chip-select Address */ + u16 res1; + u32 csmr0; /* Chip-select Mask */ + u16 res2; + u16 cscr0; /* Chip-select Control */ + u16 csar1; + u16 res3; + u32 csmr1; + u16 res4; + u16 cscr1; + u16 csar2; + u16 res5; + u32 csmr2; + u16 res6; + u16 cscr2; + u16 csar3; + u16 res7; + u32 csmr3; + u16 res8; + u16 cscr3; + u16 csar4; + u16 res9; + u32 csmr4; + u16 res10; + u16 cscr4; + u16 csar5; + u16 res11; + u32 csmr5; + u16 res12; + u16 cscr5; + u16 csar6; + u16 res13; + u32 csmr6; + u16 res14; + u16 cscr6; + u16 csar7; + u16 res15; + u32 csmr7; + u16 res16; + u16 cscr7; +} csm_t; + +typedef struct dramctrl { + u16 dcr; + u16 res1; + u32 res2; + u32 dacr0; + u32 dmr0; + u32 dacr1; + u32 dmr1; +} dramctrl_t; + +typedef struct gpio { + u16 paddr; + u16 res1; + u16 padat; + u16 res2; +} gpio_t; + +#endif /* __IMMAP_5307__ */ + diff --git a/arch/m68k/include/asm/m5307.h b/arch/m68k/include/asm/m5307.h new file mode 100644 index 0000000..8192c46 --- /dev/null +++ b/arch/m68k/include/asm/m5307.h @@ -0,0 +1,70 @@ +/* + * (C) Copyright 2014 Angelo Dureghello angelo@sysam.it + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#ifndef mcf5307_h +#define mcf5307_h + +/* + * Size of internal RAM (RAMBAR) + */ +#define INT_RAM_SIZE 4096 + +/* Bit definitions and macros for SYPCR */ +#define SYPCR_SWTAVAL 0x02 +#define SYPCR_SWTA 0x04 +#define SYPCR_SWT(x) ((x&0x3)<<3) +#define SYPCR_SWP 0x20 +#define SYPCR_SWRI 0x40 +#define SYPCR_SWE 0x80 + +/* Bit definitions and macros for CSMR */ +#define CSMR_V 0x01 +#define CSMR_UD 0x02 +#define CSMR_UC 0x04 +#define CSMR_SD 0x08 +#define CSMR_SC 0x10 +#define CSMR_CI 0x20 +#define CSMR_AM 0x40 +#define CSMR_WP 0x100 + +/* Bit definitions and macros for DACR (SDRAM) */ +#define DACR_PM_CONTINUOUS 0x04 +#define DACR_IP_PRECHG_ALL 0x08 +#define DACR_PORT_SZ_32 0 +#define DACR_PORT_SZ_8 (1<<4) +#define DACR_PORT_SZ_16 (2<<4) +#define DACR_IMRS_INIT_CMD (1<<6) +#define DACR_CMD_PIN(x) ((x&7)<<8) +#define DACR_CASL(x) ((x&3)<<12) +#define DACR_RE (1<<15) + +/* Bit definitions and macros for CSCR */ +#define CSCR_BSTW 0x08 +#define CSCR_BSTR 0x10 +#define CSCR_BEM 0x20 +#define CSCR_PS(x) ((x&0x3)<<6) +#define CSCR_AA 0x100 +#define CSCR_WS ((x&0xf)<<10) + +/* Bit definitions for the ICR family of registers */ +#define MCFSIM_ICR_AUTOVEC 0x80 /* Auto-vectored intr */ +#define MCFSIM_ICR_LEVEL0 0x00 /* Level 0 intr */ +#define MCFSIM_ICR_LEVEL1 0x04 /* Level 1 intr */ +#define MCFSIM_ICR_LEVEL2 0x08 /* Level 2 intr */ +#define MCFSIM_ICR_LEVEL3 0x0c /* Level 3 intr */ +#define MCFSIM_ICR_LEVEL4 0x10 /* Level 4 intr */ +#define MCFSIM_ICR_LEVEL5 0x14 /* Level 5 intr */ +#define MCFSIM_ICR_LEVEL6 0x18 /* Level 6 intr */ +#define MCFSIM_ICR_LEVEL7 0x1c /* Level 7 intr */ + +#define MCFSIM_ICR_PRI0 0x00 /* Priority 0 intr */ +#define MCFSIM_ICR_PRI1 0x01 /* Priority 1 intr */ +#define MCFSIM_ICR_PRI2 0x02 /* Priority 2 intr */ +#define MCFSIM_ICR_PRI3 0x03 /* Priority 3 intr */ + +#endif /* mcf5307_h */ + diff --git a/arch/m68k/include/asm/timer.h b/arch/m68k/include/asm/timer.h index 2bdaddc..8fb3216 100644 --- a/arch/m68k/include/asm/timer.h +++ b/arch/m68k/include/asm/timer.h @@ -17,7 +17,8 @@ /****************************************************************************/ /* DMA Timer module registers */ typedef struct dtimer_ctrl { -#if defined(CONFIG_M5249) || defined(CONFIG_M5253) || defined(CONFIG_M5272) +#if defined(CONFIG_M5249) || defined(CONFIG_M5253) || \ + defined(CONFIG_M5272) || defined(CONFIG_M5307) u16 tmr; /* 0x00 Mode register */ u16 res1; /* 0x02 */ u16 trr; /* 0x04 Reference register */