stm32mp2: initial support
Add initial support for STM32MP2 SoCs family.
SoCs information are available here :
https://www.st.com/content/st_com/en/campaigns/microprocessor-stm32mp2.html
Migrate all MP1 related code into stm32mp1/ directory
Create stm32mp2 directory dedicated for STM32MP2 SoCs.
Common code to MP1, MP13 and MP25 is kept into
arch/arm/mach-stm32/mach-stm32mp directory :
- boot_params.c
- bsec
- cmd_stm32key
- cmd_stm32prog
- dram_init.c
- syscon.c
- ecdsa_romapi.c
For STM32MP2, it also :
- adds memory region description needed for ARMv8 MMU.
- enables early data cache before relocation.
During the transition before/after relocation, the MMU, initially setup
at the beginning of DDR, must be setup again at a correct address after
relocation. This is done in enables_caches() by disabling cache, force
arch.tlb_fillptr to NULL which will force the MMU to be setup again but
with a new value for gd->arch.tlb_addr. gd->arch.tlb_addr has been
updated after relocation in arm_reserve_mmu().
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
diff --git a/arch/arm/mach-stm32mp/Kconfig.25x b/arch/arm/mach-stm32mp/Kconfig.25x
new file mode 100644
index 0000000..2c0f691
--- /dev/null
+++ b/arch/arm/mach-stm32mp/Kconfig.25x
@@ -0,0 +1,43 @@
+if STM32MP25X
+
+choice
+ prompt "STM32MP25x board select"
+ optional
+
+config TARGET_ST_STM32MP25X
+ bool "STMicroelectronics STM32MP25x boards"
+ imply BOOTSTAGE
+ imply CMD_BOOTSTAGE
+ help
+ target the STMicroelectronics board with SOC STM32MP25x
+ managed by board/st/stm32mp2
+ The difference between board are managed with devicetree
+
+endchoice
+
+config TEXT_BASE
+ default 0x84000000
+
+config PRE_CON_BUF_ADDR
+ default 0x84800000
+
+config PRE_CON_BUF_SZ
+ default 4096
+
+config BOOTSTAGE_STASH_ADDR
+ default 0x87000000
+
+if DEBUG_UART
+
+config DEBUG_UART_BOARD_INIT
+ default y
+
+# debug on USART2 by default
+config DEBUG_UART_BASE
+ default 0x400e0000
+
+endif
+
+source "board/st/stm32mp2/Kconfig"
+
+endif