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stm32h7: detect unsupported SDMMC transfers to ITCM

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Change-Id: I4916829155d334148bf9683a9a66a125ef90a1f4
This commit is contained in:
Aidan MacDonald 2025-12-30 00:30:11 +00:00 • committed by Solomon Peachy
parent 3da69af83c
commit 047871c58a
1 changed files with 11 additions and 1 deletions
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12
firmware/target/arm/stm32/sdmmc-stm32h7.c
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@ -45,7 +45,7 @@
#define DATA_SUCCESS_BITS \
__reg_orm(SDMMC_STAR, DATAEND)
#define DATA_ERROR_BITS \
__reg_orm(SDMMC_STAR, DTIMEOUT, DABORT, DCRCFAIL, TXUNDERR, RXOVERR)
__reg_orm(SDMMC_STAR, IDMATE, DTIMEOUT, DABORT, DCRCFAIL, TXUNDERR, RXOVERR)
#define DATA_END_BITS \
(DATA_SUCCESS_BITS | DATA_ERROR_BITS)
@ -284,6 +284,16 @@ int stm32h7_sdmmc_submit_command(void *controller,
(uintptr_t)buff_addr < STM32_DTCM_BASE + STM32_DTCM_SIZE)
panicf("%s: buffer in DTCM not supported", __func__);
/*
* Must assign to a variable to prevent GCC from whining
* about 'limited range of data type', because the ITCM
* is mapped at address 0.
*/
static const uintptr_t itcm_base = STM32_ITCM_BASE;
if ((uintptr_t)buff_addr >= itcm_base &&
(uintptr_t)buff_addr < itcm_base + STM32_ITCM_SIZE)
panicf("%s: buffer in ITCM not supported", __func__);
/* Set block size */
uint32_t dctrl = 0;
uint32_t dblocksize = find_first_set_bit(cmd->block_len);