diff options
Diffstat (limited to 'board/esd/pci405/writeibm.S')
| -rw-r--r-- | board/esd/pci405/writeibm.S | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/board/esd/pci405/writeibm.S b/board/esd/pci405/writeibm.S deleted file mode 100644 index 03eaf97b78..0000000000 --- a/board/esd/pci405/writeibm.S +++ /dev/null @@ -1,205 +0,0 @@ -/* - * SPDX-License-Identifier: GPL-2.0 IBM-pibs - */ -/*----------------------------------------------------------------------------- */ -/* Function: ext_bus_cntlr_init */ -/* Description: Initializes the External Bus Controller for the external */ -/* peripherals. IMPORTANT: For pass1 this code must run from */ -/* cache since you can not reliably change a peripheral banks */ -/* timing register (pbxap) while running code from that bank. */ -/* For ex., since we are running from ROM on bank 0, we can NOT */ -/* execute the code that modifies bank 0 timings from ROM, so */ -/* we run it from cache. */ -/* Bank 0 - Flash and SRAM */ -/* Bank 1 - NVRAM/RTC */ -/* Bank 2 - Keyboard/Mouse controller */ -/* Bank 3 - IR controller */ -/* Bank 4 - not used */ -/* Bank 5 - not used */ -/* Bank 6 - not used */ -/* Bank 7 - FPGA registers */ -/*----------------------------------------------------------------------------- */ -#include <asm/ppc4xx.h> - -#include <ppc_asm.tmpl> -#include <ppc_defs.h> - -#include <asm/cache.h> -#include <asm/mmu.h> - - - .globl write_without_sync -write_without_sync: - /* - * Write one values to host via pci busmastering - * ptr = 0xc0000000 -> 0x01000000 (PCI) - * *ptr = 0x01234567; - */ - addi r31,0,0 - lis r31,0xc000 - -start1: - lis r0,0x0123 - ori r0,r0,0x4567 - stw r0,0(r31) - - /* - * Read one value back - * ptr = (volatile unsigned long *)addr; - * val = *ptr; - */ - - lwz r0,0(r31) - - /* - * One pci config write - * ibmPciConfigWrite(0x2e, 2, 0x1234); - */ - /* subsystem id */ - - li r4,0x002C - oris r4,r4,0x8000 - lis r3,0xEEC0 - stwbrx r4,0,r3 - - li r5,0x1234 - ori r3,r3,0x4 - stwbrx r5,0,r3 - - b start1 - - blr /* never reached !!!! */ - - .globl write_with_sync -write_with_sync: - /* - * Write one values to host via pci busmastering - * ptr = 0xc0000000 -> 0x01000000 (PCI) - * *ptr = 0x01234567; - */ - addi r31,0,0 - lis r31,0xc000 - -start2: - lis r0,0x0123 - ori r0,r0,0x4567 - stw r0,0(r31) - - /* - * Read one value back - * ptr = (volatile unsigned long *)addr; - * val = *ptr; - */ - - lwz r0,0(r31) - - /* - * One pci config write - * ibmPciConfigWrite(0x2e, 2, 0x1234); - */ - /* subsystem id */ - - li r4,0x002C - oris r4,r4,0x8000 - lis r3,0xEEC0 - stwbrx r4,0,r3 - sync - - li r5,0x1234 - ori r3,r3,0x4 - stwbrx r5,0,r3 - sync - - b start2 - - blr /* never reached !!!! */ - - .globl write_with_less_sync -write_with_less_sync: - /* - * Write one values to host via pci busmastering - * ptr = 0xc0000000 -> 0x01000000 (PCI) - * *ptr = 0x01234567; - */ - addi r31,0,0 - lis r31,0xc000 - -start2b: - lis r0,0x0123 - ori r0,r0,0x4567 - stw r0,0(r31) - - /* - * Read one value back - * ptr = (volatile unsigned long *)addr; - * val = *ptr; - */ - - lwz r0,0(r31) - - /* - * One pci config write - * ibmPciConfigWrite(0x2e, 2, 0x1234); - */ - /* subsystem id */ - - li r4,0x002C - oris r4,r4,0x8000 - lis r3,0xEEC0 - stwbrx r4,0,r3 - sync - - li r5,0x1234 - ori r3,r3,0x4 - stwbrx r5,0,r3 -/* sync */ - - b start2b - - blr /* never reached !!!! */ - - .globl write_with_more_sync -write_with_more_sync: - /* - * Write one values to host via pci busmastering - * ptr = 0xc0000000 -> 0x01000000 (PCI) - * *ptr = 0x01234567; - */ - addi r31,0,0 - lis r31,0xc000 - -start3: - lis r0,0x0123 - ori r0,r0,0x4567 - stw r0,0(r31) - sync - - /* - * Read one value back - * ptr = (volatile unsigned long *)addr; - * val = *ptr; - */ - - lwz r0,0(r31) - sync - - /* - * One pci config write - * ibmPciConfigWrite(0x2e, 2, 0x1234); - */ - /* subsystem id (PCIC0_SBSYSVID)*/ - - li r4,0x002C - oris r4,r4,0x8000 - lis r3,0xEEC0 - stwbrx r4,0,r3 - sync - - li r5,0x1234 - ori r3,r3,0x4 - stwbrx r5,0,r3 - sync - - b start3 - - blr /* never reached !!!! */ |
