diff options
Diffstat (limited to 'board/esd/cpci750/misc.S')
-rw-r--r-- | board/esd/cpci750/misc.S | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/board/esd/cpci750/misc.S b/board/esd/cpci750/misc.S deleted file mode 100644 index 233fd83..0000000 --- a/board/esd/cpci750/misc.S +++ /dev/null @@ -1,245 +0,0 @@ -#include <config.h> -#include <74xx_7xx.h> -#include "version.h" - -#include <ppc_asm.tmpl> -#include <ppc_defs.h> - -#include <asm/cache.h> -#include <asm/mmu.h> - -#include "../../Marvell/include/mv_gen_reg.h" - -#ifdef CONFIG_ECC - /* Galileo specific asm code for initializing ECC */ - .globl board_relocate_rom -board_relocate_rom: - mflr r7 - /* update the location of the GT registers */ - lis r11, CONFIG_SYS_GT_REGS@h - /* if we're using ECC, we must use the DMA engine to copy ourselves */ - bl start_idma_transfer_0 - bl wait_for_idma_0 - bl stop_idma_engine_0 - - mtlr r7 - blr - - .globl board_init_ecc -board_init_ecc: - mflr r7 - /* NOTE: r10 still contains the location we've been relocated to - * which happens to be TOP_OF_RAM - CONFIG_SYS_MONITOR_LEN */ - - /* now that we're running from ram, init the rest of main memory - * for ECC use */ - lis r8, CONFIG_SYS_MONITOR_LEN@h - ori r8, r8, CONFIG_SYS_MONITOR_LEN@l - - divw r3, r10, r8 - - /* set up the counter, and init the starting address */ - mtctr r3 - li r12, 0 - - /* bytes per transfer */ - mr r5, r8 -about_to_init_ecc: -1: mr r3, r12 - mr r4, r12 - bl start_idma_transfer_0 - bl wait_for_idma_0 - bl stop_idma_engine_0 - add r12, r12, r8 - bdnz 1b - - mtlr r7 - blr - - /* r3: dest addr - * r4: source addr - * r5: byte count - * r11: gt regbase - * trashes: r6, r5 - */ -start_idma_transfer_0: - /* set the byte count, including the OWN bit */ - mr r6, r11 - ori r6, r6, CHANNEL0_DMA_BYTE_COUNT - stwbrx r5, 0, (r6) - - /* set the source address */ - mr r6, r11 - ori r6, r6, CHANNEL0_DMA_SOURCE_ADDRESS - stwbrx r4, 0, (r6) - - /* set the dest address */ - mr r6, r11 - ori r6, r6, CHANNEL0_DMA_DESTINATION_ADDRESS - stwbrx r3, 0, (r6) - - /* set the next record pointer */ - li r5, 0 - mr r6, r11 - ori r6, r6, CHANNEL0NEXT_RECORD_POINTER - stwbrx r5, 0, (r6) - - /* set the low control register */ - /* bit 9 is NON chained mode, bit 31 is new style descriptors. - bit 12 is channel enable */ - ori r5, r5, (1 << 12) | (1 << 12) | (1 << 11) - /* 15 shifted by 16 (oris) == bit 31 */ - oris r5, r5, (1 << 15) - mr r6, r11 - ori r6, r6, CHANNEL0CONTROL - stwbrx r5, 0, (r6) - - blr - - /* this waits for the bytecount to return to zero, indicating - * that the trasfer is complete */ -wait_for_idma_0: - mr r5, r11 - lis r6, 0xff - ori r6, r6, 0xffff - ori r5, r5, CHANNEL0_DMA_BYTE_COUNT -1: lwbrx r4, 0, (r5) - and. r4, r4, r6 - bne 1b - - blr - - /* this turns off channel 0 of the idma engine */ -stop_idma_engine_0: - /* shut off the DMA engine */ - li r5, 0 - mr r6, r11 - ori r6, r6, CHANNEL0CONTROL - stwbrx r5, 0, (r6) - - blr -#endif - -#ifdef CONFIG_SYS_BOARD_ASM_INIT - /* NOTE: trashes r3-r7 */ - .globl board_asm_init -board_asm_init: - /* just move the GT registers to where they belong */ - lis r3, CONFIG_SYS_DFL_GT_REGS@h - ori r3, r3, CONFIG_SYS_DFL_GT_REGS@l - lis r4, CONFIG_SYS_GT_REGS@h - ori r4, r4, CONFIG_SYS_GT_REGS@l - li r5, INTERNAL_SPACE_DECODE - - /* test to see if we've already moved */ - lwbrx r6, r5, r4 - andi. r6, r6, 0xffff - /* check loading of R7 is: 0x0F80 should: 0xf800: DONE */ -/* rlwinm r7, r4, 8, 16, 31 - rlwinm r7, r4, 12, 16, 31 */ /* original */ - rlwinm r7, r4, 16, 16, 31 - /* -----------------------------------------------------*/ - cmp cr0, r7, r6 - beqlr - - /* nope, have to move the registers */ - lwbrx r6, r5, r3 - andis. r6, r6, 0xffff - or r6, r6, r7 - stwbrx r6, r5, r3 - - /* now, poll for the change */ -1: lwbrx r7, r5, r4 - cmp cr0, r7, r6 - bne 1b - - lis r3, CONFIG_SYS_INT_SRAM_BASE@h - ori r3, r3, CONFIG_SYS_INT_SRAM_BASE@l - rlwinm r3, r3, 16, 16, 31 - lis r4, CONFIG_SYS_GT_REGS@h - ori r4, r4, CONFIG_SYS_GT_REGS@l - li r5, INTEGRATED_SRAM_BASE_ADDR - stwbrx r3, r5, r4 - -2: lwbrx r6, r5, r4 - cmp cr0, r3, r6 - bne 2b - - /* done! */ - blr -#endif - -/* For use of the debug LEDs */ - .global led_on0_relocated -led_on0_relocated: - xor r21, r21, r21 - xor r18, r18, r18 - lis r18, 0xFC80 - ori r18, r18, 0x8000 -/* stw r21, 0x0(r18) */ - sync - blr - - .global led_off0_relocated -led_off0_relocated: - xor r21, r21, r21 - xor r18, r18, r18 - lis r18, 0xFC81 - ori r18, r18, 0x4000 -/* stw r21, 0x0(r18) */ - sync - blr - - .global led_on0 -led_on0: - xor r18, r18, r18 - lis r18, 0x1c80 - ori r18, r18, 0x8000 -/* stw r18, 0x0(r18) */ - sync - blr - - .global led_off0 -led_off0: - xor r18, r18, r18 - lis r18, 0x1c81 - ori r18, r18, 0x4000 -/* stw r18, 0x0(r18) */ - sync - blr - - .global led_on1 -led_on1: - xor r18, r18, r18 - lis r18, 0x1c80 - ori r18, r18, 0xc000 -/* stw r18, 0x0(r18) */ - sync - blr - - .global led_off1 -led_off1: - xor r18, r18, r18 - lis r18, 0x1c81 - ori r18, r18, 0x8000 -/* stw r18, 0x0(r18) */ - sync - blr - - .global led_on2 -led_on2: - xor r18, r18, r18 - lis r18, 0x1c81 - ori r18, r18, 0x0000 -/* stw r18, 0x0(r18) */ - sync - blr - - .global led_off2 -led_off2: - xor r18, r18, r18 - lis r18, 0x1c81 - ori r18, r18, 0xc000 -/* stw r18, 0x0(r18) */ - sync - blr |