imx: add basic i.MX9 support
Add i.MX9 Kconfig and basic files for the new SoC
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx9/Kconfig b/arch/arm/mach-imx/imx9/Kconfig
new file mode 100644
index 0000000..ff254c2
--- /dev/null
+++ b/arch/arm/mach-imx/imx9/Kconfig
@@ -0,0 +1,16 @@
+if ARCH_IMX9
+
+config IMX9
+ bool
+ select HAS_CAAM
+ select ROM_UNIFIED_SECTIONS
+
+config IMX93
+ bool
+ select IMX9
+ select ARMV8_SPL_EXCEPTION_VECTORS
+
+config SYS_SOC
+ default "imx9"
+
+endif
diff --git a/arch/arm/mach-imx/imx9/Makefile b/arch/arm/mach-imx/imx9/Makefile
new file mode 100644
index 0000000..773b12e
--- /dev/null
+++ b/arch/arm/mach-imx/imx9/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright 2022 NXP
+
+obj-y += lowlevel_init.o
+obj-y += soc.o clock.o
diff --git a/arch/arm/mach-imx/imx9/clock.c b/arch/arm/mach-imx/imx9/clock.c
new file mode 100644
index 0000000..287e312
--- /dev/null
+++ b/arch/arm/mach-imx/imx9/clock.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <div64.h>
+#include <errno.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <log.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 get_lpuart_clk(void)
+{
+ return 24000000;
+}
diff --git a/arch/arm/mach-imx/imx9/lowlevel_init.S b/arch/arm/mach-imx/imx9/lowlevel_init.S
new file mode 100644
index 0000000..1dc1dbf
--- /dev/null
+++ b/arch/arm/mach-imx/imx9/lowlevel_init.S
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2022 NXP
+ */
+
+#include <config.h>
+
+.align 8
+.global rom_pointer
+rom_pointer:
+ .space 256
+
+/*
+ * Routine: save_boot_params (called after reset from start.S)
+ */
+
+.global save_boot_params
+save_boot_params:
+#ifndef CONFIG_SPL_BUILD
+ /* The firmware provided ATAG/FDT address can be found in r2/x0 */
+ adr x0, rom_pointer
+ stp x1, x2, [x0], #16
+ stp x3, x4, [x0], #16
+#endif
+ /* Returns */
+ b save_boot_params_ret
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
new file mode 100644
index 0000000..d905fe7
--- /dev/null
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <init.h>
+#include <log.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/mach-imx/boot_mode.h>
+#include <asm/mach-imx/syscounter.h>
+#include <asm/armv8/mmu.h>
+#include <dm/uclass.h>
+#include <env.h>
+#include <env_internal.h>
+#include <errno.h>
+#include <fdt_support.h>
+#include <linux/bitops.h>
+#include <asm/setup.h>
+#include <asm/bootm.h>
+#include <asm/arch-imx/cpu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 get_cpu_rev(void)
+{
+ return (MXC_CPU_IMX93 << 12) | CHIP_REV_1_0;
+}
+
+static struct mm_region imx93_mem_map[] = {
+ {
+ /* ROM */
+ .virt = 0x0UL,
+ .phys = 0x0UL,
+ .size = 0x100000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_OUTER_SHARE
+ }, {
+ /* OCRAM */
+ .virt = 0x20480000UL,
+ .phys = 0x20480000UL,
+ .size = 0xA0000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_OUTER_SHARE
+ }, {
+ /* AIPS */
+ .virt = 0x40000000UL,
+ .phys = 0x40000000UL,
+ .size = 0x40000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* Flexible Serial Peripheral Interface */
+ .virt = 0x28000000UL,
+ .phys = 0x28000000UL,
+ .size = 0x30000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* DRAM1 */
+ .virt = 0x80000000UL,
+ .phys = 0x80000000UL,
+ .size = PHYS_SDRAM_SIZE,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_OUTER_SHARE
+ }, {
+ /* empty entrie to split table entry 5 if needed when TEEs are used */
+ 0,
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = imx93_mem_map;
+
+int dram_init(void)
+{
+ gd->ram_size = PHYS_SDRAM_SIZE;
+
+ return 0;
+}
+
+void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
+{
+ mac[0] = 0x1;
+ mac[1] = 0x2;
+ mac[2] = 0x3;
+ mac[3] = 0x4;
+ mac[4] = 0x5;
+ mac[5] = 0x6;
+}
+
+int print_cpuinfo(void)
+{
+ u32 cpurev;
+
+ cpurev = get_cpu_rev();
+
+ printf("CPU: i.MX93 rev%d.%d\n", (cpurev & 0x000F0) >> 4, (cpurev & 0x0000F) >> 0);
+
+ return 0;
+}
+
+int arch_misc_init(void)
+{
+ return 0;
+}
+
+int ft_system_setup(void *blob, struct bd_info *bd)
+{
+ return 0;
+}
+
+int arch_cpu_init(void)
+{
+ return 0;
+}