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stm32f4: Fix problems with small flash sizes creating overflow or empty regions. 

Thanks to "DerMeisteRR" for pointing out.
This commit is contained in:
Uwe Bonnes 2018-12-13 20:59:57 +01:00
parent 47fad2bf7f
commit 7cc02867ae
1 changed files with 4 additions and 1 deletions
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5
src/target/stm32f4.c
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@ -134,6 +134,7 @@ static void stm32f4_add_flash(target *t,
uint32_t addr, size_t length, size_t blocksize, uint32_t addr, size_t length, size_t blocksize,
unsigned int base_sector, int split) unsigned int base_sector, int split)
{ {
if (length == 0) return;
struct stm32f4_flash *sf = calloc(1, sizeof(*sf)); struct stm32f4_flash *sf = calloc(1, sizeof(*sf));
struct target_flash *f = &sf->f; struct target_flash *f = &sf->f;
f->start = addr; f->start = addr;
@ -333,7 +334,9 @@ static bool stm32f4_attach(target *t)
stm32f4_add_flash(t, 0x8020000, 0x20000, 0x20000, 4, split); stm32f4_add_flash(t, 0x8020000, 0x20000, 0x20000, 4, split);
stm32f4_add_flash(t, 0x8040000, remains, 0x40000, 5, split); stm32f4_add_flash(t, 0x8040000, remains, 0x40000, 5, split);
} else { } else {
uint32_t remains = banksize - 0x20000; /* 128 k in small sectors.*/ uint32_t remains = 0;
if (banksize > 0x20000)
remains = banksize - 0x20000; /* 128 k in small sectors.*/
if (is_f7) { if (is_f7) {
stm32f4_add_flash(t, ITCM_BASE, 0x10000, 0x4000, 0, split); stm32f4_add_flash(t, ITCM_BASE, 0x10000, 0x4000, 0, split);
stm32f4_add_flash(t, 0x0210000, 0x10000, 0x10000, 4, split); stm32f4_add_flash(t, 0x0210000, 0x10000, 0x10000, 4, split);