diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/Makefile | 2 | ||||
| -rw-r--r-- | tools/mkimage.c | 2 | ||||
| -rw-r--r-- | tools/mkimage.h | 1 | ||||
| -rw-r--r-- | tools/omap/clocks_get_m_n.c | 197 | ||||
| -rw-r--r-- | tools/omapimage.c | 224 | ||||
| -rw-r--r-- | tools/omapimage.h | 50 |
6 files changed, 476 insertions, 0 deletions
diff --git a/tools/Makefile b/tools/Makefile index e813e1d..fc741d3 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -88,6 +88,7 @@ OBJ_FILES-$(CONFIG_CMD_LOADS) += img2srec.o OBJ_FILES-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes.o NOPED_OBJ_FILES-y += kwbimage.o NOPED_OBJ_FILES-y += imximage.o +NOPED_OBJ_FILES-y += omapimage.o NOPED_OBJ_FILES-y += mkimage.o OBJ_FILES-$(CONFIG_NETCONSOLE) += ncb.o NOPED_OBJ_FILES-y += os_support.o @@ -192,6 +193,7 @@ $(obj)mkimage$(SFX): $(obj)crc32.o \ $(obj)md5.o \ $(obj)mkimage.o \ $(obj)os_support.o \ + $(obj)omapimage.o \ $(obj)sha1.o \ $(obj)ublimage.o \ $(LIBFDT_OBJS) diff --git a/tools/mkimage.c b/tools/mkimage.c index 7215d0f..2f33101 100644 --- a/tools/mkimage.c +++ b/tools/mkimage.c @@ -156,6 +156,8 @@ main (int argc, char **argv) init_imx_image_type (); /* Init FIT image generation/list support */ init_fit_image_type (); + /* Init TI OMAP Boot image generation/list support */ + init_omap_image_type(); /* Init Default image generation/list support */ init_default_image_type (); /* Init Davinci UBL support */ diff --git a/tools/mkimage.h b/tools/mkimage.h index d109d40..e59a919 100644 --- a/tools/mkimage.h +++ b/tools/mkimage.h @@ -144,5 +144,6 @@ void init_imx_image_type (void); void init_default_image_type (void); void init_fit_image_type (void); void init_ubl_image_type(void); +void init_omap_image_type(void); #endif /* _MKIIMAGE_H_ */ diff --git a/tools/omap/clocks_get_m_n.c b/tools/omap/clocks_get_m_n.c new file mode 100644 index 0000000..cfc1760 --- /dev/null +++ b/tools/omap/clocks_get_m_n.c @@ -0,0 +1,197 @@ +/* + * Program for finding M & N values for DPLLs + * To be run on Host PC + * + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V <aneesh@ti.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 <stdlib.h> +#include <stdio.h> +typedef unsigned int u32; +#define MAX_N 127 + +/* + * get_m_n_optimized() - Finds optimal DPLL multiplier(M) and divider(N) + * values based on the reference frequency, required output frequency, + * maximum tolerance for output frequency etc. + * + * target_freq_khz - output frequency required in KHz + * ref_freq_khz - reference(input) frequency in KHz + * m - pointer to computed M value + * n - pointer to computed N value + * tolerance_khz - tolerance for the output frequency. When the algorithm + * succeeds in finding vialble M and N values the corresponding output + * frequency will be in the range: + * [target_freq_khz - tolerance_khz, target_freq_khz] + * + * Formula: + * Fdpll = (2 * M * Fref) / (N + 1) + * + * Considerations for lock-time: + * - Smaller the N, better lock-time, especially lock-time will be + * - For acceptable lock-times: + * Fref / (M + 1) >= 1 MHz + * + * Considerations for power: + * - The difference in power for different N values giving the same + * output is negligible. So, we optimize for lock-time + * + * Hard-constraints: + * - N can not be greater than 127(7 bit field for representing N) + * + * Usage: + * $ gcc clocks_get_m_n.c + * $ ./a.out + */ +int get_m_n_optimized(u32 target_freq_khz, u32 ref_freq_khz, u32 *m, u32 *n, + u32 tolerance_khz) +{ + u32 min_freq = target_freq_khz - tolerance_khz; + u32 max_freq = target_freq_khz; + u32 freq, freq_old; + *n = 1; + while (1) { + *m = min_freq / ref_freq_khz / 2 * (*n) ; + freq_old = 0; + while (1) { + freq = ref_freq_khz * 2 * (*m) / (*n); + if (abs(target_freq_khz - freq_old) <= + abs(target_freq_khz - freq)) { + freq = freq_old; + (*m)--; + break; + } + (*m)++; + freq_old = freq; + } + if (freq >= min_freq && freq <= max_freq) + break; + (*n)++; + if ((*n) > MAX_N + 1) { + printf("ref %d m %d n %d target %d : ", + ref_freq_khz, *m, *n, target_freq_khz); + printf("can not find m & n - please consider" + " increasing tolerance\n"); + return -1; + } + } + (*n)--; + printf("ref %d m %d n %d target %d locked %d\n", + ref_freq_khz, *m, *n, target_freq_khz, freq); + if ((ref_freq_khz / (*n + 1)) < 1000) { + printf("\tREFCLK - CLKINP/(N+1) is less than 1 MHz - less than" + " ideal, locking time will be high!\n"); + } + return 0; +} + +void main(void) +{ + u32 m, n; + printf("\nMPU - 2000000\n"); + get_m_n_optimized(2000000, 12000, &m, &n, 0); + get_m_n_optimized(2000000, 13000, &m, &n, 0); + get_m_n_optimized(2000000, 16800, &m, &n, 800); + get_m_n_optimized(2000000, 19200, &m, &n, 0); + get_m_n_optimized(2000000, 26000, &m, &n, 0); + get_m_n_optimized(2000000, 27000, &m, &n, 0); + get_m_n_optimized(2000000, 38400, &m, &n, 0); + + printf("\nMPU - 1200000\n"); + get_m_n_optimized(1200000, 12000, &m, &n, 0); + get_m_n_optimized(1200000, 13000, &m, &n, 0); + get_m_n_optimized(1200000, 16800, &m, &n, 800); + get_m_n_optimized(1200000, 19200, &m, &n, 0); + get_m_n_optimized(1200000, 26000, &m, &n, 0); + get_m_n_optimized(1200000, 27000, &m, &n, 0); + get_m_n_optimized(1200000, 38400, &m, &n, 0); + + printf("\nMPU - 1584000\n"); + get_m_n_optimized(1584000, 12000, &m, &n, 0); + get_m_n_optimized(1584000, 13000, &m, &n, 0); + get_m_n_optimized(1584000, 16800, &m, &n, 400); + get_m_n_optimized(1584000, 19200, &m, &n, 0); + get_m_n_optimized(1584000, 26000, &m, &n, 0); + get_m_n_optimized(1584000, 27000, &m, &n, 0); + get_m_n_optimized(1584000, 38400, &m, &n, 0); + + printf("\nCore 1600000\n"); + get_m_n_optimized(1600000, 12000, &m, &n, 0); + get_m_n_optimized(1600000, 13000, &m, &n, 0); + get_m_n_optimized(1600000, 16800, &m, &n, 200); + get_m_n_optimized(1600000, 19200, &m, &n, 0); + get_m_n_optimized(1600000, 26000, &m, &n, 0); + get_m_n_optimized(1600000, 27000, &m, &n, 0); + get_m_n_optimized(1600000, 38400, &m, &n, 0); + + printf("\nPER 1536000\n"); + get_m_n_optimized(1536000, 12000, &m, &n, 0); + get_m_n_optimized(1536000, 13000, &m, &n, 0); + get_m_n_optimized(1536000, 16800, &m, &n, 0); + get_m_n_optimized(1536000, 19200, &m, &n, 0); + get_m_n_optimized(1536000, 26000, &m, &n, 0); + get_m_n_optimized(1536000, 27000, &m, &n, 0); + get_m_n_optimized(1536000, 38400, &m, &n, 0); + + printf("\nIVA 1862000\n"); + get_m_n_optimized(1862000, 12000, &m, &n, 0); + get_m_n_optimized(1862000, 13000, &m, &n, 0); + get_m_n_optimized(1862000, 16800, &m, &n, 0); + get_m_n_optimized(1862000, 19200, &m, &n, 900); + get_m_n_optimized(1862000, 26000, &m, &n, 0); + get_m_n_optimized(1862000, 27000, &m, &n, 0); + get_m_n_optimized(1862000, 38400, &m, &n, 800); + + printf("\nABE 196608 sys clk\n"); + get_m_n_optimized(196608, 12000, &m, &n, 700); + get_m_n_optimized(196608, 13000, &m, &n, 200); + get_m_n_optimized(196608, 16800, &m, &n, 700); + get_m_n_optimized(196608, 19200, &m, &n, 400); + get_m_n_optimized(196608, 26000, &m, &n, 200); + get_m_n_optimized(196608, 27000, &m, &n, 900); + get_m_n_optimized(196608, 38400, &m, &n, 0); + + printf("\nABE 196608 32K\n"); + get_m_n_optimized(196608000/4, 32768, &m, &n, 0); + + printf("\nUSB 1920000\n"); + get_m_n_optimized(1920000, 12000, &m, &n, 0); + get_m_n_optimized(1920000, 13000, &m, &n, 0); + get_m_n_optimized(1920000, 16800, &m, &n, 0); + get_m_n_optimized(1920000, 19200, &m, &n, 0); + get_m_n_optimized(1920000, 26000, &m, &n, 0); + get_m_n_optimized(1920000, 27000, &m, &n, 0); + get_m_n_optimized(1920000, 38400, &m, &n, 0); + + printf("\nCore ES1 1523712\n"); + get_m_n_optimized(1524000, 12000, &m, &n, 100); + get_m_n_optimized(1524000, 13000, &m, &n, 0); + get_m_n_optimized(1524000, 16800, &m, &n, 0); + get_m_n_optimized(1524000, 19200, &m, &n, 0); + get_m_n_optimized(1524000, 26000, &m, &n, 0); + get_m_n_optimized(1524000, 27000, &m, &n, 0); + + /* exact recommendation for SDPs */ + get_m_n_optimized(1523712, 38400, &m, &n, 0); + +} diff --git a/tools/omapimage.c b/tools/omapimage.c new file mode 100644 index 0000000..29d91cc --- /dev/null +++ b/tools/omapimage.c @@ -0,0 +1,224 @@ +/* + * (C) Copyright 2010 + * Linaro LTD, www.linaro.org + * Author: John Rigby <john.rigby@linaro.org> + * Based on TI's signGP.c + * + * (C) Copyright 2009 + * Stefano Babic, DENX Software Engineering, sbabic@denx.de. + * + * (C) Copyright 2008 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar <prafulla@marvell.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 + */ + +/* Required to obtain the getline prototype from stdio.h */ +#define _GNU_SOURCE + +#include "mkimage.h" +#include <image.h> +#include "omapimage.h" + +/* Header size is CH header rounded up to 512 bytes plus GP header */ +#define OMAP_CH_HDR_SIZE 512 +#define OMAP_GP_HDR_SIZE (sizeof(struct gp_header)) +#define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE) + +static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE]; + +static int omapimage_check_image_types(uint8_t type) +{ + if (type == IH_TYPE_OMAPIMAGE) + return EXIT_SUCCESS; + else { + fprintf(stderr, "Unknown OMAP image type - %x", type); + return EXIT_FAILURE; + } +} + +/* + * Only the simplest image type is currently supported: + * TOC pointing to CHSETTINGS + * TOC terminator + * CHSETTINGS + * + * padding to OMAP_CH_HDR_SIZE bytes + * + * gp header + * size + * load_addr + */ +static int valid_gph_size(uint32_t size) +{ + return size; +} + +static int valid_gph_load_addr(uint32_t load_addr) +{ + return load_addr; +} + +static int omapimage_verify_header(unsigned char *ptr, int image_size, + struct mkimage_params *params) +{ + struct ch_toc *toc = (struct ch_toc *)ptr; + struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE); + uint32_t offset, size; + + while (toc->section_offset != 0xffffffff + && toc->section_size != 0xffffffff) { + offset = toc->section_offset; + size = toc->section_size; + if (!offset || !size) + return -1; + if (offset >= OMAP_CH_HDR_SIZE || + offset+size >= OMAP_CH_HDR_SIZE) + return -1; + toc++; + } + if (!valid_gph_size(gph->size)) + return -1; + if (!valid_gph_load_addr(gph->load_addr)) + return -1; + + return 0; +} + +static void omapimage_print_section(struct ch_settings *chs) +{ + const char *section_name; + + if (chs->section_key) + section_name = "CHSETTINGS"; + else + section_name = "UNKNOWNKEY"; + + printf("%s (%x) " + "valid:%x " + "version:%x " + "reserved:%x " + "flags:%x\n", + section_name, + chs->section_key, + chs->valid, + chs->version, + chs->reserved, + chs->flags); +} + +static void omapimage_print_header(const void *ptr) +{ + const struct ch_toc *toc = (struct ch_toc *)ptr; + const struct gp_header *gph = + (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE); + uint32_t offset, size; + + while (toc->section_offset != 0xffffffff + && toc->section_size != 0xffffffff) { + offset = toc->section_offset; + size = toc->section_size; + + if (offset >= OMAP_CH_HDR_SIZE || + offset+size >= OMAP_CH_HDR_SIZE) + exit(EXIT_FAILURE); + + printf("Section %s offset %x length %x\n", + toc->section_name, + toc->section_offset, + toc->section_size); + + omapimage_print_section((struct ch_settings *)(ptr+offset)); + toc++; + } + + if (!valid_gph_size(gph->size)) { + fprintf(stderr, + "Error: invalid image size %x\n", + gph->size); + exit(EXIT_FAILURE); + } + + if (!valid_gph_load_addr(gph->load_addr)) { + fprintf(stderr, + "Error: invalid image load address %x\n", + gph->size); + exit(EXIT_FAILURE); + } + + printf("GP Header: Size %x LoadAddr %x\n", + gph->size, gph->load_addr); +} + +static int toc_offset(void *hdr, void *member) +{ + return member - hdr; +} + +static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd, + struct mkimage_params *params) +{ + struct ch_toc *toc = (struct ch_toc *)ptr; + struct ch_settings *chs = (struct ch_settings *) + (ptr + 2 * sizeof(*toc)); + struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE); + + toc->section_offset = toc_offset(ptr, chs); + toc->section_size = sizeof(struct ch_settings); + strcpy((char *)toc->section_name, "CHSETTINGS"); + + chs->section_key = KEY_CHSETTINGS; + chs->valid = 0; + chs->version = 1; + chs->reserved = 0; + chs->flags = 0; + + toc++; + memset(toc, 0xff, sizeof(*toc)); + + gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE; + gph->load_addr = params->addr; +} + +int omapimage_check_params(struct mkimage_params *params) +{ + return (params->dflag && (params->fflag || params->lflag)) || + (params->fflag && (params->dflag || params->lflag)) || + (params->lflag && (params->dflag || params->fflag)); +} + +/* + * omapimage parameters + */ +static struct image_type_params omapimage_params = { + .name = "TI OMAP CH/GP Boot Image support", + .header_size = OMAP_FILE_HDR_SIZE, + .hdr = (void *)&omapimage_header, + .check_image_type = omapimage_check_image_types, + .verify_header = omapimage_verify_header, + .print_header = omapimage_print_header, + .set_header = omapimage_set_header, + .check_params = omapimage_check_params, +}; + +void init_omap_image_type(void) +{ + mkimage_register(&omapimage_params); +} diff --git a/tools/omapimage.h b/tools/omapimage.h new file mode 100644 index 0000000..719db00 --- /dev/null +++ b/tools/omapimage.h @@ -0,0 +1,50 @@ +/* + * (C) Copyright 2010 + * Linaro LTD, www.linaro.org + * Author John Rigby <john.rigby@linaro.org> + * Based on TI's signGP.c + * + * 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 _OMAPIMAGE_H_ +#define _OMAPIMAGE_H_ + +struct ch_toc { + uint32_t section_offset; + uint32_t section_size; + uint8_t unused[12]; + uint8_t section_name[12]; +}; + +struct ch_settings { + uint32_t section_key; + uint8_t valid; + uint8_t version; + uint16_t reserved; + uint32_t flags; +}; + +struct gp_header { + uint32_t size; + uint32_t load_addr; +}; + +#define KEY_CHSETTINGS 0xC0C0C0C1 +#endif /* _OMAPIMAGE_H_ */ |