diff options
Diffstat (limited to 'arch/arm/mach-mmp')
| -rw-r--r-- | arch/arm/mach-mmp/Kconfig | 12 | ||||
| -rw-r--r-- | arch/arm/mach-mmp/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mmp/board.c | 84 | ||||
| -rw-r--r-- | arch/arm/mach-mmp/mmu.c | 30 |
4 files changed, 127 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig new file mode 100644 index 00000000000..889f127fe82 --- /dev/null +++ b/arch/arm/mach-mmp/Kconfig @@ -0,0 +1,12 @@ +if ARCH_MMP + +config TARGET_COREPRIMEVELTE + bool "Support coreprimevelte" + select LINUX_KERNEL_IMAGE_HEADER + +config LNX_KRNL_IMG_TEXT_OFFSET_BASE + default TEXT_BASE + +source "board/samsung/coreprimevelte/Kconfig" + +endif diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile new file mode 100644 index 00000000000..99beaed05c2 --- /dev/null +++ b/arch/arm/mach-mmp/Makefile @@ -0,0 +1 @@ +obj-y += board.o mmu.o diff --git a/arch/arm/mach-mmp/board.c b/arch/arm/mach-mmp/board.c new file mode 100644 index 00000000000..3384e5377a7 --- /dev/null +++ b/arch/arm/mach-mmp/board.c @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2024 + * Duje Mihanović <duje.mihanovic@skole.hr> + */ +#include <errno.h> +#include <init.h> +#include <fdt_support.h> +#include <asm/io.h> +#include <asm/global_data.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Timer constants */ +#define APBC_COUNTER_CLK_SEL 0xd4015064 +#define COUNTER_BASE 0xd4101000 +#define COUNTER_EN BIT(0) +#define COUNTER_HALT_ON_DEBUG BIT(1) + +int timer_init(void) +{ + u32 tmp = readl(APBC_COUNTER_CLK_SEL); + + if ((tmp >> 16) != 0x319) + return -1; + + /* Set timer frequency to 26MHz */ + writel(tmp | 1, APBC_COUNTER_CLK_SEL); + writel(COUNTER_EN | COUNTER_HALT_ON_DEBUG, COUNTER_BASE); + + gd->arch.timer_rate_hz = 26000000; + + return 0; +} + +int board_init(void) +{ + return 0; +} + +int dram_init(void) +{ + if (fdtdec_setup_mem_size_base() != 0) + puts("fdtdec_setup_mem_size_base() has failed\n"); + + return 0; +} + +#ifndef CONFIG_SYSRESET +void reset_cpu(void) +{ +} +#endif + +/* Stolen from arch/arm/mach-snapdragon/board.c */ +int board_fdt_blob_setup(void **fdtp) +{ + struct fdt_header *fdt; + bool internal_valid, external_valid; + int ret = 0; + + fdt = (struct fdt_header *)get_prev_bl_fdt_addr(); + external_valid = fdt && !fdt_check_header(fdt); + internal_valid = !fdt_check_header(*fdtp); + + /* + * There is no point returning an error here, U-Boot can't do anything useful in this situation. + * Bail out while we can still print a useful error message. + */ + if (!internal_valid && !external_valid) + panic("Internal FDT is invalid and no external FDT was provided! (fdt=%#llx)\n", + (phys_addr_t)fdt); + + if (internal_valid) { + debug("Using built in FDT\n"); + ret = -EEXIST; + } else { + debug("Using external FDT\n"); + /* So we can use it before returning */ + *fdtp = fdt; + } + + return ret; +} diff --git a/arch/arm/mach-mmp/mmu.c b/arch/arm/mach-mmp/mmu.c new file mode 100644 index 00000000000..ad2f1e3d994 --- /dev/null +++ b/arch/arm/mach-mmp/mmu.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2024 + * Duje Mihanović <duje.mihanovic@skole.hr> + */ +#include <asm/armv8/mmu.h> +#include <linux/sizes.h> + +static struct mm_region pxa1908_mem_map[] = { + { + .virt = 0x0UL, + .phys = 0x0UL, + .size = 2UL * SZ_1G, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, + { + .virt = 0x80000000UL, + .phys = 0x80000000UL, + .size = 2UL * SZ_1G, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_INNER_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, + { + 0, + } +}; + +struct mm_region *mem_map = pxa1908_mem_map; |