diff options
author | Kevin Gillespie <kgills@gmail.com> | 2016-07-14 13:00:23 -0500 |
---|---|---|
committer | Tomas Vanek <vanekt@fbl.cz> | 2018-08-21 19:24:58 +0100 |
commit | 6060545458f6863710d576fc4bd2512d34f88f89 (patch) | |
tree | 5e938975985fb1f8d91d155bfb81cf71fcb8fec6 /contrib | |
parent | 404495b191ecfe1085e10e9057d4e2e47a7a3399 (diff) | |
download | riscv-openocd-6060545458f6863710d576fc4bd2512d34f88f89.zip riscv-openocd-6060545458f6863710d576fc4bd2512d34f88f89.tar.gz riscv-openocd-6060545458f6863710d576fc4bd2512d34f88f89.tar.bz2 |
max32xxx: Support for MAX32XXX devices.
Adding flash programming support for Maxim Integrated MAX32XXX
devices.
Change-Id: I5b0f57a885f9d813240e4bc2d9f765b743e1cfc3
Signed-off-by: Kevin Gillespie <kgills@gmail.com>
Reviewed-on: http://openocd.zylin.com/3543
Tested-by: jenkins
Reviewed-by: Ismail H. KOSE <ihkose@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Diffstat (limited to 'contrib')
-rw-r--r-- | contrib/loaders/Makefile | 1 | ||||
-rw-r--r-- | contrib/loaders/flash/max32xxx/Makefile | 19 | ||||
-rw-r--r-- | contrib/loaders/flash/max32xxx/max32xxx.inc | 6 | ||||
-rw-r--r-- | contrib/loaders/flash/max32xxx/max32xxx.s | 70 |
4 files changed, 96 insertions, 0 deletions
diff --git a/contrib/loaders/Makefile b/contrib/loaders/Makefile index a9a2770..0a637af 100644 --- a/contrib/loaders/Makefile +++ b/contrib/loaders/Makefile @@ -12,6 +12,7 @@ ARM_CROSS_COMPILE ?= arm-none-eabi- arm_dirs = \ flash/fm4 \ flash/kinetis_ke \ + flash/max32xxx \ flash/xmc1xxx \ debug/xscale diff --git a/contrib/loaders/flash/max32xxx/Makefile b/contrib/loaders/flash/max32xxx/Makefile new file mode 100644 index 0000000..8f3f924 --- /dev/null +++ b/contrib/loaders/flash/max32xxx/Makefile @@ -0,0 +1,19 @@ +BIN2C = ../../../../src/helper/bin2char.sh + +CROSS_COMPILE ?= arm-none-eabi- +AS = $(CROSS_COMPILE)as +OBJCOPY = $(CROSS_COMPILE)objcopy + +all: max32xxx.inc + +%.elf: %.s + $(AS) $< -o $@ + +%.bin: %.elf + $(OBJCOPY) -Obinary $< $@ + +%.inc: %.bin + $(BIN2C) < $< > $@ + +clean: + -rm -f *.elf *.bin *.inc diff --git a/contrib/loaders/flash/max32xxx/max32xxx.inc b/contrib/loaders/flash/max32xxx/max32xxx.inc new file mode 100644 index 0000000..442165d --- /dev/null +++ b/contrib/loaders/flash/max32xxx/max32xxx.inc @@ -0,0 +1,6 @@ +/* Autogenerated with ../../../../src/helper/bin2char.sh */ +0xdf,0xf8,0x44,0x40,0xd0,0xf8,0x00,0x80,0xb8,0xf1,0x00,0x0f,0x1a,0xd0,0x47,0x68, +0x47,0x45,0xf7,0xd0,0x22,0x60,0x02,0xf1,0x04,0x02,0x57,0xf8,0x04,0x8b,0xc4,0xf8, +0x30,0x80,0xa5,0x68,0x45,0xf0,0x01,0x05,0xa5,0x60,0xd4,0xf8,0x08,0x80,0x18,0xf0, +0x01,0x0f,0xfa,0xd1,0x8f,0x42,0x28,0xbf,0x00,0xf1,0x08,0x07,0x47,0x60,0x01,0x3b, +0x03,0xb1,0xdf,0xe7,0x00,0xbe,0x00,0xbf,0x00,0x00,0x00,0x40, diff --git a/contrib/loaders/flash/max32xxx/max32xxx.s b/contrib/loaders/flash/max32xxx/max32xxx.s new file mode 100644 index 0000000..f5306d6 --- /dev/null +++ b/contrib/loaders/flash/max32xxx/max32xxx.s @@ -0,0 +1,70 @@ +/*************************************************************************** + * Copyright (C) 2016 by Maxim Integrated * + * Kevin Gillespie <kevin.gillespie@maximintegrated.com * + * * + * 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, see <http://www.gnu.org/licenses/>. * + ***************************************************************************/ + +.text +.syntax unified +.cpu cortex-m3 +.thumb +.thumb_func + +/* + * Params : + * r0 = workarea start + * r1 = workarea end + * r2 = target address + * r3 = count (32bit words) + * r4 = pFLASH_CTRL_BASE + * + * Clobbered: + * r5 = FLASHWRITECMD + * r7 - rp + * r8 - wp, tmp + */ + +write: + +wait_fifo: +ldr r8, [r0, #0] /* read wp */ +cmp r8, #0 /* abort if wp == 0 */ +beq exit +ldr r7, [r0, #4] /* read rp */ +cmp r7, r8 /* wait until rp != wp */ +beq wait_fifo + +mainloop: +str r2, [r4, #0x00] /* FLSH_ADDR - write address */ +add r2, r2, #4 /* increment target address */ +ldr r8, [r7], #4 +str r8, [r4, #0x30] /* FLSH_DATA0 - write data */ +ldr r5, [r4, #0x08] /* FLSH_CN */ +orr r5, r5, #1 +str r5, [r4, #0x08] /* FLSH_CN - enable write */ +busy: +ldr r8, [r4, #0x08] /* FLSH_CN */ +tst r8, #1 +bne busy + +cmp r7, r1 /* wrap rp at end of buffer */ +it cs +addcs r7, r0, #8 /* skip loader args */ +str r7, [r0, #4] /* store rp */ +subs r3, r3, #1 /* decrement word count */ +cbz r3, exit /* loop if not done */ +b wait_fifo +exit: +bkpt |