FreeCalypso > hg > freecalypso-tools
changeset 988:5a6019ed7e72
pln-ppb-test: implement read-id
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 03 Dec 2023 00:04:18 +0000 |
| parents | 6b87de9e385b |
| children | a5bff8104b45 |
| files | target-utils/pln-ppb-test/Makefile target-utils/pln-ppb-test/cmdtab.c target-utils/pln-ppb-test/read_id.c |
| diffstat | 3 files changed, 31 insertions(+), 1 deletions(-) [+] |
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--- a/target-utils/pln-ppb-test/Makefile Sun Dec 03 00:01:03 2023 +0000 +++ b/target-utils/pln-ppb-test/Makefile Sun Dec 03 00:04:18 2023 +0000 @@ -5,7 +5,7 @@ OBJCOPY=arm-elf-objcopy PROG= pln-ppb-test -OBJS= crt0.o cmdtab.o main.o mode_entry.o +OBJS= crt0.o cmdtab.o main.o mode_entry.o read_id.o LIBS= ../libcommon/libcommon.a ../libprintf/libprintf.a \ ../libbase/libbase.a ../libc/libc.a LIBGCC= `${CC} -print-file-name=libgcc.a`
--- a/target-utils/pln-ppb-test/cmdtab.c Sun Dec 03 00:01:03 2023 +0000 +++ b/target-utils/pln-ppb-test/cmdtab.c Sun Dec 03 00:04:18 2023 +0000 @@ -8,6 +8,7 @@ extern void cmd_r8(); extern void cmd_r16(); extern void cmd_r32(); +extern void cmd_read_id(); extern void cmd_w8(); extern void cmd_w16(); extern void cmd_w32(); @@ -33,6 +34,7 @@ {"r8", cmd_r8}, {"r16", cmd_r16}, {"r32", cmd_r32}, + {"read-id", cmd_read_id}, {"w8", cmd_w8}, {"w16", cmd_w16}, {"w32", cmd_w32},
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/target-utils/pln-ppb-test/read_id.c Sun Dec 03 00:04:18 2023 +0000 @@ -0,0 +1,28 @@ +/* + * read-id (Autoselect) command + */ + +#include <sys/types.h> +#include "types.h" + +void +cmd_read_id(argbulk) + char *argbulk; +{ + char *argv[2]; + u_long addr; + + if (parse_args(argbulk, 1, 1, argv, 0) < 0) + return; + if (parse_hexarg(argv[0], 8, &addr) < 0) { + printf("ERROR: argument must be a valid 32-bit hex address\n"); + return; + } + if (addr & 0xFFFF) { + printf("ERROR: address is not on 64 KiB boundary\n"); + return; + } + *(volatile u16 *)(addr + 0xAAA) = 0xAA; + *(volatile u16 *)(addr + 0x554) = 0x55; + *(volatile u16 *)(addr + 0xAAA) = 0x90; +}