feat(stm32mp1): manage second NAND OTP on STM32MP13
On STM32MP13, 2 OTP fuses can be used to configure NAND devices.
By default OTP CFG9 is used for sNAND. A new OTP (CFG10) is used
to configure raw NAND. Thanks to bit 0 of CFG10 OTP, this default
configuration can be switched.
For sNAND on STM32MP13, the NAND_PARAM_STORED_IN_OTP is not used.
The sNAND parameters have to be taken from OTP bits.
Change-Id: Ib95e0f9b9e66179a58b07f723ea01dce68b96475
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
diff --git a/plat/st/stm32mp1/stm32mp1_boot_device.c b/plat/st/stm32mp1/stm32mp1_boot_device.c
index ba53c7a..3a8a27a 100644
--- a/plat/st/stm32mp1/stm32mp1_boot_device.c
+++ b/plat/st/stm32mp1/stm32mp1_boot_device.c
@@ -30,6 +30,7 @@
static int get_data_from_otp(struct nand_device *nand_dev, bool is_slc)
{
uint32_t nand_param;
+ uint32_t nand2_param __maybe_unused;
/* Check if NAND parameters are stored in OTP */
if (stm32_get_otp_value(NAND_OTP, &nand_param) != 0) {
@@ -38,12 +39,39 @@
}
if (nand_param == 0U) {
+#if STM32MP13
+ if (is_slc) {
+ return 0;
+ }
+#endif
+#if STM32MP15
return 0;
+#endif
}
if ((nand_param & NAND_PARAM_STORED_IN_OTP) == 0U) {
+#if STM32MP13
+ if (is_slc) {
+ goto ecc;
+ }
+#endif
+#if STM32MP15
goto ecc;
+#endif
+ }
+
+#if STM32MP13
+ if (stm32_get_otp_value(NAND2_OTP, &nand2_param) != 0) {
+ ERROR("BSEC: NAND_OTP Error\n");
+ return -EACCES;
+ }
+
+ /* Check OTP configuration for this device */
+ if ((((nand2_param & NAND2_CONFIG_DISTRIB) == NAND2_PNAND_NAND1_SNAND_NAND2) && !is_slc) ||
+ (((nand2_param & NAND2_CONFIG_DISTRIB) == NAND2_PNAND_NAND2_SNAND_NAND1) && is_slc)) {
+ nand_param = nand2_param << (NAND_PAGE_SIZE_SHIFT - NAND2_PAGE_SIZE_SHIFT);
}
+#endif
/* NAND parameter shall be read from OTP */
if ((nand_param & NAND_WIDTH_MASK) != 0U) {