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-rw-r--r--arch/arm/mach-stm32mp/stm32mp2/Makefile9
-rw-r--r--arch/arm/mach-stm32mp/stm32mp2/arm64-mmu.c68
-rw-r--r--arch/arm/mach-stm32mp/stm32mp2/cpu.c108
-rw-r--r--arch/arm/mach-stm32mp/stm32mp2/fdt.c16
-rw-r--r--arch/arm/mach-stm32mp/stm32mp2/stm32mp25x.c194
5 files changed, 395 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/stm32mp2/Makefile b/arch/arm/mach-stm32mp/stm32mp2/Makefile
new file mode 100644
index 00000000000..b579ce5a800
--- /dev/null
+++ b/arch/arm/mach-stm32mp/stm32mp2/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+#
+# Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+#
+
+obj-y += cpu.o
+obj-y += arm64-mmu.o
+obj-$(CONFIG_OF_SYSTEM_SETUP) += fdt.o
+obj-$(CONFIG_STM32MP25X) += stm32mp25x.o
diff --git a/arch/arm/mach-stm32mp/stm32mp2/arm64-mmu.c b/arch/arm/mach-stm32mp/stm32mp2/arm64-mmu.c
new file mode 100644
index 00000000000..a203eebdc59
--- /dev/null
+++ b/arch/arm/mach-stm32mp/stm32mp2/arm64-mmu.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+/*
+ * Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+ */
+
+#include <common.h>
+#include <asm/system.h>
+#include <asm/armv8/mmu.h>
+
+#define MP2_MEM_MAP_MAX 10
+
+#if (CONFIG_TEXT_BASE < STM32_DDR_BASE) || \
+ (CONFIG_TEXT_BASE > (STM32_DDR_BASE + STM32_DDR_SIZE))
+#error "invalid CONFIG_TEXT_BASE value"
+#endif
+
+struct mm_region stm32mp2_mem_map[MP2_MEM_MAP_MAX] = {
+ {
+ /* PCIe */
+ .virt = 0x10000000UL,
+ .phys = 0x10000000UL,
+ .size = 0x10000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* LPSRAMs, VDERAM, RETRAM, SRAMs, SYSRAM: alias1 */
+ .virt = 0x20000000UL,
+ .phys = 0x20000000UL,
+ .size = 0x00200000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* Peripherals: alias1 */
+ .virt = 0x40000000UL,
+ .phys = 0x40000000UL,
+ .size = 0x10000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* OSPI and FMC: memory-map area */
+ .virt = 0x60000000UL,
+ .phys = 0x60000000UL,
+ .size = 0x20000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /*
+ * DDR = STM32_DDR_BASE / STM32_DDR_SIZE
+ * the beginning of DDR (before CONFIG_TEXT_BASE) is not
+ * mapped, protected by RIF and reserved for other firmware
+ * (OP-TEE / TF-M / Cube M33)
+ */
+ .virt = CONFIG_TEXT_BASE,
+ .phys = CONFIG_TEXT_BASE,
+ .size = STM32_DDR_SIZE - (CONFIG_TEXT_BASE - STM32_DDR_BASE),
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = stm32mp2_mem_map;
diff --git a/arch/arm/mach-stm32mp/stm32mp2/cpu.c b/arch/arm/mach-stm32mp/stm32mp2/cpu.c
new file mode 100644
index 00000000000..5bfeab17ab7
--- /dev/null
+++ b/arch/arm/mach-stm32mp/stm32mp2/cpu.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+/*
+ * Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+ */
+
+#define LOG_CATEGORY LOGC_ARCH
+
+#include <common.h>
+#include <clk.h>
+#include <cpu_func.h>
+#include <debug_uart.h>
+#include <env_internal.h>
+#include <init.h>
+#include <misc.h>
+#include <wdt.h>
+#include <asm/io.h>
+#include <asm/arch/stm32.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/system.h>
+#include <dm/device.h>
+#include <dm/lists.h>
+#include <dm/uclass.h>
+
+/*
+ * early TLB into the .data section so that it not get cleared
+ * with 16kB alignment
+ */
+#define EARLY_TLB_SIZE 0xA000
+u8 early_tlb[EARLY_TLB_SIZE] __section(".data") __aligned(0x4000);
+
+/*
+ * initialize the MMU and activate cache in U-Boot pre-reloc stage
+ * MMU/TLB is updated in enable_caches() for U-Boot after relocation
+ */
+static void early_enable_caches(void)
+{
+ if (CONFIG_IS_ENABLED(SYS_DCACHE_OFF))
+ return;
+
+ if (!(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF))) {
+ gd->arch.tlb_size = EARLY_TLB_SIZE;
+ gd->arch.tlb_addr = (unsigned long)&early_tlb;
+ }
+ /* enable MMU (default configuration) */
+ dcache_enable();
+}
+
+/*
+ * Early system init
+ */
+int arch_cpu_init(void)
+{
+ icache_enable();
+ early_enable_caches();
+
+ return 0;
+}
+
+void enable_caches(void)
+{
+ /* deactivate the data cache, early enabled in arch_cpu_init() */
+ dcache_disable();
+ /*
+ * Force the call of setup_all_pgtables() in mmu_setup() by clearing tlb_fillptr
+ * to update the TLB location udpated in board_f.c::reserve_mmu
+ */
+ gd->arch.tlb_fillptr = 0;
+ dcache_enable();
+}
+
+/* used when CONFIG_DISPLAY_CPUINFO is activated */
+int print_cpuinfo(void)
+{
+ char name[SOC_NAME_SIZE];
+
+ get_soc_name(name);
+ printf("CPU: %s\n", name);
+
+ return 0;
+}
+
+int arch_misc_init(void)
+{
+ return 0;
+}
+
+/*
+ * Force data-section, as .bss will not be valid
+ * when save_boot_params is invoked.
+ */
+static uintptr_t nt_fw_dtb __section(".data");
+
+uintptr_t get_stm32mp_bl2_dtb(void)
+{
+ return nt_fw_dtb;
+}
+
+/*
+ * Save the FDT address provided by TF-A in r2 at boot time
+ * This function is called from start.S
+ */
+void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2,
+ unsigned long r3)
+{
+ nt_fw_dtb = r2;
+
+ save_boot_params_ret();
+}
diff --git a/arch/arm/mach-stm32mp/stm32mp2/fdt.c b/arch/arm/mach-stm32mp/stm32mp2/fdt.c
new file mode 100644
index 00000000000..ee570863bb7
--- /dev/null
+++ b/arch/arm/mach-stm32mp/stm32mp2/fdt.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+/*
+ * Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+ */
+
+#include <common.h>
+
+/*
+ * This function is called right before the kernel is booted. "blob" is the
+ * device tree that will be passed to the kernel.
+ */
+int ft_system_setup(void *blob, struct bd_info *bd)
+{
+ return 0;
+}
+
diff --git a/arch/arm/mach-stm32mp/stm32mp2/stm32mp25x.c b/arch/arm/mach-stm32mp/stm32mp2/stm32mp25x.c
new file mode 100644
index 00000000000..7d2dab2201d
--- /dev/null
+++ b/arch/arm/mach-stm32mp/stm32mp2/stm32mp25x.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+/*
+ * Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+ */
+
+#define LOG_CATEGORY LOGC_ARCH
+
+#include <common.h>
+#include <log.h>
+#include <syscon.h>
+#include <asm/io.h>
+#include <asm/arch/stm32.h>
+#include <asm/arch/sys_proto.h>
+
+/* SYSCFG register */
+#define SYSCFG_DEVICEID_OFFSET 0x6400
+#define SYSCFG_DEVICEID_DEV_ID_MASK GENMASK(11, 0)
+#define SYSCFG_DEVICEID_DEV_ID_SHIFT 0
+#define SYSCFG_DEVICEID_REV_ID_MASK GENMASK(31, 16)
+#define SYSCFG_DEVICEID_REV_ID_SHIFT 16
+
+/* Device Part Number (RPN) = OTP9 */
+#define RPN_SHIFT 0
+#define RPN_MASK GENMASK(31, 0)
+
+/* Package = bit 0:2 of OTP122 => STM32MP25_PKG defines
+ * - 000: Custom package
+ * - 011: TFBGA361 => AL = 10x10, 361 balls pith 0.5mm
+ * - 100: TFBGA424 => AK = 14x14, 424 balls pith 0.5mm
+ * - 101: TFBGA436 => AI = 18x18, 436 balls pith 0.5mm
+ * - others: Reserved
+ */
+#define PKG_SHIFT 0
+#define PKG_MASK GENMASK(2, 0)
+
+static u32 read_deviceid(void)
+{
+ void *syscfg = syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
+
+ return readl(syscfg + SYSCFG_DEVICEID_OFFSET);
+}
+
+u32 get_cpu_dev(void)
+{
+ return (read_deviceid() & SYSCFG_DEVICEID_DEV_ID_MASK) >> SYSCFG_DEVICEID_DEV_ID_SHIFT;
+}
+
+u32 get_cpu_rev(void)
+{
+ return (read_deviceid() & SYSCFG_DEVICEID_REV_ID_MASK) >> SYSCFG_DEVICEID_REV_ID_SHIFT;
+}
+
+/* Get Device Part Number (RPN) from OTP */
+u32 get_cpu_type(void)
+{
+ return get_otp(BSEC_OTP_RPN, RPN_SHIFT, RPN_MASK);
+}
+
+/* Get Package options from OTP */
+u32 get_cpu_package(void)
+{
+ return get_otp(BSEC_OTP_PKG, PKG_SHIFT, PKG_MASK);
+}
+
+int get_eth_nb(void)
+{
+ int nb_eth;
+
+ switch (get_cpu_type()) {
+ case CPU_STM32MP257Fxx:
+ fallthrough;
+ case CPU_STM32MP257Dxx:
+ fallthrough;
+ case CPU_STM32MP257Cxx:
+ fallthrough;
+ case CPU_STM32MP257Axx:
+ nb_eth = 5; /* dual ETH with TSN support */
+ break;
+ case CPU_STM32MP253Fxx:
+ fallthrough;
+ case CPU_STM32MP253Dxx:
+ fallthrough;
+ case CPU_STM32MP253Cxx:
+ fallthrough;
+ case CPU_STM32MP253Axx:
+ nb_eth = 2; /* dual ETH */
+ break;
+ case CPU_STM32MP251Fxx:
+ fallthrough;
+ case CPU_STM32MP251Dxx:
+ fallthrough;
+ case CPU_STM32MP251Cxx:
+ fallthrough;
+ case CPU_STM32MP251Axx:
+ nb_eth = 1; /* single ETH */
+ break;
+ default:
+ nb_eth = 0;
+ break;
+ }
+
+ return nb_eth;
+}
+
+void get_soc_name(char name[SOC_NAME_SIZE])
+{
+ char *cpu_s, *cpu_r, *package;
+
+ cpu_s = "????";
+ cpu_r = "?";
+ package = "??";
+ if (get_cpu_dev() == CPU_DEV_STM32MP25) {
+ switch (get_cpu_type()) {
+ case CPU_STM32MP257Fxx:
+ cpu_s = "257F";
+ break;
+ case CPU_STM32MP257Dxx:
+ cpu_s = "257D";
+ break;
+ case CPU_STM32MP257Cxx:
+ cpu_s = "257C";
+ break;
+ case CPU_STM32MP257Axx:
+ cpu_s = "257A";
+ break;
+ case CPU_STM32MP255Fxx:
+ cpu_s = "255F";
+ break;
+ case CPU_STM32MP255Dxx:
+ cpu_s = "255D";
+ break;
+ case CPU_STM32MP255Cxx:
+ cpu_s = "255C";
+ break;
+ case CPU_STM32MP255Axx:
+ cpu_s = "255A";
+ break;
+ case CPU_STM32MP253Fxx:
+ cpu_s = "253F";
+ break;
+ case CPU_STM32MP253Dxx:
+ cpu_s = "253D";
+ break;
+ case CPU_STM32MP253Cxx:
+ cpu_s = "253C";
+ break;
+ case CPU_STM32MP253Axx:
+ cpu_s = "253A";
+ break;
+ case CPU_STM32MP251Fxx:
+ cpu_s = "251F";
+ break;
+ case CPU_STM32MP251Dxx:
+ cpu_s = "251D";
+ break;
+ case CPU_STM32MP251Cxx:
+ cpu_s = "251C";
+ break;
+ case CPU_STM32MP251Axx:
+ cpu_s = "251A";
+ break;
+ default:
+ cpu_s = "25??";
+ break;
+ }
+ /* REVISION */
+ switch (get_cpu_rev()) {
+ case CPU_REV1:
+ cpu_r = "A";
+ break;
+ default:
+ break;
+ }
+ /* PACKAGE */
+ switch (get_cpu_package()) {
+ case STM32MP25_PKG_CUSTOM:
+ package = "XX";
+ break;
+ case STM32MP25_PKG_AL_TBGA361:
+ package = "AL";
+ break;
+ case STM32MP25_PKG_AK_TBGA424:
+ package = "AK";
+ break;
+ case STM32MP25_PKG_AI_TBGA436:
+ package = "AI";
+ break;
+ default:
+ break;
+ }
+ }
+
+ snprintf(name, SOC_NAME_SIZE, "STM32MP%s%s Rev.%s", cpu_s, package, cpu_r);
+}
generated by cgit v1.2.3 (git 2.0.4) at 2025-10-21 13:02:10 +0000