feat(st-sdmmc2): define FIFO size
Instead of using hard-coded values in stm32_sdmmc2_read() function,
use a defined SDMMC_FIFO_SIZE, which is 64 on STM32MP1.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I1ace0a28fbddae474379f0187371b9c360ceb7b3
diff --git a/drivers/st/mmc/stm32_sdmmc2.c b/drivers/st/mmc/stm32_sdmmc2.c
index c9bad71..6bdd782 100644
--- a/drivers/st/mmc/stm32_sdmmc2.c
+++ b/drivers/st/mmc/stm32_sdmmc2.c
@@ -129,6 +129,8 @@
#define DT_SDMMC2_COMPAT "st,stm32-sdmmc2"
#endif
+#define SDMMC_FIFO_SIZE 64U
+
static void stm32_sdmmc2_init(void);
static int stm32_sdmmc2_send_cmd_req(struct mmc_cmd *cmd);
static int stm32_sdmmc2_send_cmd(struct mmc_cmd *cmd);
@@ -644,7 +646,7 @@
return -ETIMEDOUT;
}
- if (size < (8U * sizeof(uint32_t))) {
+ if (size < (SDMMC_FIFO_SIZE / 2U)) {
if ((mmio_read_32(base + SDMMC_DCNTR) > 0U) &&
((status & SDMMC_STAR_RXFIFOE) == 0U)) {
*buffer = mmio_read_32(fifo_reg);
@@ -654,7 +656,8 @@
uint32_t count;
/* Read data from SDMMC Rx FIFO */
- for (count = 0; count < 8U; count++) {
+ for (count = 0; count < (SDMMC_FIFO_SIZE / 2U);
+ count += sizeof(uint32_t)) {
*buffer = mmio_read_32(fifo_reg);
buffer++;
}