diff options
Diffstat (limited to 'board/netstar/crcek.S')
| -rw-r--r-- | board/netstar/crcek.S | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/board/netstar/crcek.S b/board/netstar/crcek.S deleted file mode 100644 index af35662187..0000000000 --- a/board/netstar/crcek.S +++ /dev/null @@ -1,241 +0,0 @@ -/** - * (C) Copyright 2005 - * 2N Telekomunikace, Ladislav Michl <michl@2n.cz> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2. - * - * Image layout looks like following: - * u32 - size - * u32 - version - * ... - data - * u32 - crc32 - */ - -#include <config.h> -#include "crcek.h" - -/** - * do_crc32 - calculate CRC32 of given buffer - * r0 - crc - * r1 - pointer to buffer - * r2 - buffer len - */ - .macro do_crc32 - ldr r5, FFFFFFFF - eor r0, r0, r5 - adr r3, CRC32_TABLE -1: - ldrb r4, [r1], #1 - eor r4, r4, r0 - and r4, r4, #0xff - ldr r4, [r3, r4, lsl#2] - eor r0, r4, r0, lsr#8 - subs r2, r2, #0x1 - bne 1b - eor r0, r0, r5 - .endm - - .macro crcuj, offset, size - mov r0, #0 - ldr r1, \offset - ldr r2, [r1], #4 - cmp r2, r0 @ no data, no problem - beq 2f - tst r2, #3 @ unaligned size - bne 2f - ldr r3, \size - cmp r2, r3 @ bogus size - bhi 2f - do_crc32 - ldr r1, [r1] -2: - cmp r0, r1 - .endm - - .macro wait, reg - mov \reg, #0x100000 -3: - subs \reg, \reg, #0x1 - bne 3b - .endm - -.text -.globl crcek -crcek: - /* Enable I-cache */ - mrc p15, 0, r1, c0, c0, 0 @ read C15 ID register - mrc p15, 0, r1, c0, c0, 1 @ read C15 Cache information register - mrc p15, 0, r1, c1, c0, 0 @ read C15 Control register - orr r1, r1, #0x1000 @ enable I-cache, map interrupt vector 0xffff0000 - mcr p15, 0, r1, c1, c0, 0 @ write C15 Control register - mov r1, #0x00 - mcr p15, 0, r1, c7, c5, 0 @ Flush I-cache - nop - nop - nop - nop - - /* Setup clocking mode */ - ldr r0, MPU_CLKM_BASE @ base of CLOCK unit - ldrh r1, [r0, #0x18] @ ARM_SYST - get reset status - bic r1, r1, #(7 << 11) @ clear clock select - orr r1, r1, #(2 << 11) @ set synchronous scalable - mov r2, #0 -loop: - cmp r2, #1 @ this loop will wait for at least 100 cycles - streqh r1, [r0, #0x18] @ before issuing next request from MPU - add r2, r2, #1 @ on the 1st run code is loaded into I-cache - cmp r2, #16 @ and second run will set clocking mode - bne loop - nop - - /* Setup clock dividers */ - ldr r1, CKCTL_VAL - orr r1, r1, #0x2000 @ enable DSP clock - strh r1, [r0] @ setup clock divisors - - /* Setup DPLL to generate requested freq */ - ldr r0, DPLL1_BASE @ base of DPLL1 register - mov r1, #0x0010 @ set PLL_ENABLE - orr r1, r1, #0x2000 @ set IOB to new locking - orr r1, r1, #(OMAP5910_DPLL_MUL << 7) @ setup multiplier CLKREF - orr r1, r1, #(OMAP5910_DPLL_DIV << 5) @ setup divider CLKREF - strh r1, [r0] @ write - -locking: - ldrh r1, [r0] @ get DPLL value - tst r1, #0x01 - beq locking @ while LOCK not set - - /* Enable clock */ - ldr r0, MPU_CLKM_BASE @ base of CLOCK unit - mov r1, #(1 << 10) @ disable idle mode do not check - @ nWAKEUP pin, other remain active - strh r1, [r0, #0x04] - ldr r1, EN_CLK_VAL - strh r1, [r0, #0x08] - mov r1, #0x003f @ FLASH.RP not enabled in idle and - strh r1, [r0, #0x0c] @ max delayed ( 32 x CLKIN ) - - - mov r6, #0 - crcuj _LOADER1_OFFSET, _LOADER_SIZE - bne crc1_bad - orr r6, r6, #1 -crc1_bad: - crcuj _LOADER2_OFFSET, _LOADER_SIZE - bne crc2_bad - orr r6, r6, #2 -crc2_bad: - ldr r3, _LOADER1_OFFSET - ldr r4, _LOADER2_OFFSET - teq r6, #3 - bne one_is_bad @ one of them (or both) has bad crc - ldr r1, [r3, #4] - ldr r2, [r4, #4] - cmp r1, r2 @ boot 2nd loader if versions differ - beq boot_1st - b boot_2nd -one_is_bad: - tst r6, #1 - bne boot_1st - tst r6, #2 - bne boot_2nd -@ We are doomed, so let user know. -hell: - ldr r0, GPIO_BASE @ configure GPIO pins - ldr r1, GPIO_DIRECTION - strh r1, [r0, #0x08] -blink_loop: - mov r1, #0x08 - strh r1, [r0, #0x04] - wait r3 - mov r1, #0x10 - strh r1, [r0, #0x04] - wait r3 - b blink_loop -boot_1st: - add pc, r3, #8 -boot_2nd: - add pc, r4, #8 - -_LOADER_SIZE: - .word LOADER_SIZE - 8 @ minus size and crc32 -_LOADER1_OFFSET: - .word LOADER1_OFFSET -_LOADER2_OFFSET: - .word LOADER2_OFFSET - -FFFFFFFF: - .word 0xffffffff -CRC32_TABLE: - .word 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419 - .word 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4 - .word 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07 - .word 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de - .word 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856 - .word 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9 - .word 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4 - .word 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b - .word 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3 - .word 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a - .word 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599 - .word 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924 - .word 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190 - .word 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f - .word 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e - .word 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01 - .word 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed - .word 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950 - .word 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3 - .word 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2 - .word 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a - .word 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5 - .word 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010 - .word 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f - .word 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17 - .word 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6 - .word 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615 - .word 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8 - .word 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344 - .word 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb - .word 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a - .word 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5 - .word 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1 - .word 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c - .word 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef - .word 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236 - .word 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe - .word 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31 - .word 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c - .word 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713 - .word 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b - .word 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242 - .word 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1 - .word 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c - .word 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278 - .word 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7 - .word 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66 - .word 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9 - .word 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605 - .word 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8 - .word 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b - .word 0x2d02ef8d - -GPIO_BASE: - .word 0xfffce000 -MPU_CLKM_BASE: - .word 0xfffece00 -DPLL1_BASE: - .word 0xfffecf00 - -CKCTL_VAL: - .word OMAP5910_ARM_CKCTL -EN_CLK_VAL: - .word OMAP5910_ARM_EN_CLK -GPIO_DIRECTION: - .word 0x0000ffe7 - -.end |
