Signed-off-by: Mike Frysinger vapier@gentoo.org --- common/Makefile | 1 + common/cmd_cplbinfo.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+), 0 deletions(-) create mode 100644 common/cmd_cplbinfo.c
diff --git a/common/Makefile b/common/Makefile index 1244e0b..56d0581 100644 --- a/common/Makefile +++ b/common/Makefile @@ -41,6 +41,7 @@ COBJS-$(CONFIG_CMD_BOOTLDR) += cmd_bootldr.o COBJS-y += cmd_bootm.o COBJS-$(CONFIG_CMD_CACHE) += cmd_cache.o COBJS-$(CONFIG_CMD_CONSOLE) += cmd_console.o +COBJS-$(CONFIG_CMD_CPLBINFO) += cmd_cplbinfo.o COBJS-$(CONFIG_CMD_DATE) += cmd_date.o ifdef CONFIG_4xx COBJS-$(CONFIG_CMD_SETGETDCR) += cmd_dcr.o diff --git a/common/cmd_cplbinfo.c b/common/cmd_cplbinfo.c new file mode 100644 index 0000000..b2bbec1 --- /dev/null +++ b/common/cmd_cplbinfo.c @@ -0,0 +1,59 @@ +/* + * cmd_cplbinfo.c - dump the instruction/data cplb tables + * + * Copyright (c) 2007-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include <common.h> +#include <command.h> +#include <asm/blackfin.h> +#include <asm/cplb.h> +#include <asm/mach-common/bits/mpu.h> + +/* + * Translate the PAGE_SIZE bits into a human string + */ +static const char *cplb_page_size(uint32_t data) +{ + static const char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" }; + return page_size_string_table[(data & PAGE_SIZE_MASK) >> PAGE_SIZE_SHIFT]; +} + +/* + * show a hardware cplb table + */ +static void show_cplb_table(uint32_t *addr, uint32_t *data) +{ + size_t i; + printf(" Address Data Size Valid Locked\n"); + for (i = 1; i <= 16; ++i) { + printf(" %2i 0x%p 0x%05X %s %c %c\n", + i, *addr, *data, + cplb_page_size(*data), + (*data & CPLB_VALID ? 'Y' : 'N'), + (*data & CPLB_LOCK ? 'Y' : 'N')); + ++addr; + ++data; + } +} + +/* + * display current instruction and data cplb tables + */ +int do_cplbinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + printf("%s CPLB table [%08x]:\n", "Instruction", *(uint32_t *)DMEM_CONTROL); + show_cplb_table((uint32_t *)ICPLB_ADDR0, (uint32_t *)ICPLB_DATA0); + + printf("%s CPLB table [%08x]:\n", "Data", *(uint32_t *)IMEM_CONTROL); + show_cplb_table((uint32_t *)DCPLB_ADDR0, (uint32_t *)DCPLB_DATA0); + + return 0; +} + +U_BOOT_CMD(cplbinfo, 1, 0, do_cplbinfo, + "cplbinfo- display current CPLB tables\n", + "\n" + " - display current CPLB tables\n");