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flash/nor: Add Infineon XMC1000 flash driver

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The XMC1000 family uses a very different flash interface from XMC4000.

Tested on XMC 2Go and XMC1100 Boot Kit.

Change-Id: I3edaed420ef1c0fb89fdf221022c8b04163d41b3
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3418
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Tested-by: jenkins
This commit is contained in:
Andreas Färber
2016-04-17 19:26:30 +02:00
committed by Freddie Chopin
parent edf2cdc80b
commit 44d2c7b416
16 changed files with 840 additions and 1 deletions
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46
contrib/loaders/flash/xmc1xxx/xmc1xxx.S Normal file
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/*
* Infineon XMC1000 flash
*
* Copyright (c) 2016 Andreas Färber
*
* Based on XMC1100 AA-Step Reference Manual
*
* License: GPL-2.0+
*/
.text
.syntax unified
.cpu cortex-m0
.thumb
.thumb_func
#define NVMSTATUS 0x00
#define NVMPROG 0x04
#define NVMCONF 0x08
#define NVMSTATUS_BUSY (1 << 0)
#define NVMSTATUS_VERR_NOFAIL (0x0 << 2)
#define NVMSTATUS_VERR_MASK (0x3 << 2)
#define NVMPROG_ACTION_IDLE 0x00
#define NVMPROG_ACTION_WRITE_CONTINUOUS 0xA1
#define NVMPROG_ACTION_PAGE_ERASE_CONTINUOUS 0xA2
#define NVMPROG_ACTION_VERIFY_CONTINUOUS 0xE0
#define NVMCONF_HRLEV_NR (0x0 << 1)
#define NVMCONF_HRLEV_HRE (0x2 << 1)
#define NVMCONF_HRLEV_MASK (0x3 << 1)
#define NVM_WORD_SIZE 4
#define NVM_BLOCK_SIZE (4 * NVM_WORD_SIZE)
#define NVM_PAGE_SIZE (16 * NVM_BLOCK_SIZE)
.macro busy_wait, nvmbase, tmp, tmp2
1:
ldrh \tmp, [\nvmbase, #NVMSTATUS]
movs \tmp2, #NVMSTATUS_BUSY
ands \tmp, \tmp, \tmp2
cmp \tmp, \tmp2
beq 1b
.endm