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lpc15xx support

This commit is contained in:
David Lawrence 2016-06-09 18:20:07 -04:00
parent 2a5efbc1ac
commit 4addec0a21
4 changed files with 79 additions and 0 deletions
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1
src/Makefile
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@ -37,6 +37,7 @@ SRC = \
lmi.c \
lpc_common.c \
lpc11xx.c \
lpc15xx.c \
lpc43xx.c \
kinetis.c \
main.c \

1
src/cortexm.c
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@ -282,6 +282,7 @@ bool cortexm_probe(ADIv5_AP_t *ap)
PROBE(stm32l0_probe); /* STM32L0xx & STM32L1xx */
PROBE(stm32l4_probe);
PROBE(lpc11xx_probe);
PROBE(lpc15xx_probe);
PROBE(lpc43xx_probe);
PROBE(sam3x_probe);
PROBE(nrf51_probe);

1
src/include/target.h
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@ -264,6 +264,7 @@ bool stm32l1_probe(target *t);
bool stm32l4_probe(target *t);
bool lmi_probe(target *t);
bool lpc11xx_probe(target *t);
bool lpc15xx_probe(target *t);
bool lpc43xx_probe(target *t);
bool sam3x_probe(target *t);
bool nrf51_probe(target *t);

76
src/lpc15xx.c Normal file
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@ -0,0 +1,76 @@
#include "general.h"
#include "target.h"
#include "cortexm.h"
#include "lpc_common.h"
#define IAP_PGM_CHUNKSIZE 512 /* should fit in RAM on any device */
#define MIN_RAM_SIZE 1024
#define RAM_USAGE_FOR_IAP_ROUTINES 32 /* IAP routines use 32 bytes at top of ram */
#define IAP_ENTRYPOINT 0x03000205
#define IAP_RAM_BASE 0x02000000
#define LPC15XX_DEVICE_ID 0x400743F8
static int lpc15xx_flash_write(struct target_flash *f,
uint32_t dest, const void *src, size_t len);
void lpc15xx_add_flash(target *t, uint32_t addr, size_t len, size_t erasesize)
{
struct lpc_flash *lf = lpc_add_flash(t, addr, len);
lf->f.blocksize = erasesize;
lf->f.buf_size = IAP_PGM_CHUNKSIZE;
lf->f.write_buf = lpc15xx_flash_write;
lf->iap_entry = IAP_ENTRYPOINT;
lf->iap_ram = IAP_RAM_BASE;
lf->iap_msp = IAP_RAM_BASE + MIN_RAM_SIZE - RAM_USAGE_FOR_IAP_ROUTINES;
}
bool
lpc15xx_probe(target *t)
{
uint32_t idcode;
uint32_t ram_size = 0;
/* read the device ID register */
idcode = target_mem_read32(t, LPC15XX_DEVICE_ID);
switch (idcode) {
case 0x00001549:
case 0x00001519:
ram_size = 0x9000;
break;
case 0x00001548:
case 0x00001518:
ram_size = 0x5000;
break;
case 0x00001547:
case 0x00001517:
ram_size = 0x3000;
break;
}
if (ram_size) {
t->driver = "LPC15xx";
target_add_ram(t, 0x02000000, ram_size);
lpc15xx_add_flash(t, 0x00000000, 0x40000, 0x1000);
return true;
}
return false;
}
static int lpc15xx_flash_write(struct target_flash *f,
uint32_t dest, const void *src, size_t len)
{
if (dest == 0) {
/* Fill in the magic vector to allow booting the flash */
uint32_t *w = (uint32_t *)src;
uint32_t sum = 0;
for (unsigned i = 0; i < 7; i++)
sum += w[i];
w[7] = ~sum + 1;
}
return lpc_flash_write(f, dest, src, len);
}