From: Nitin Jain <[email protected]> This patch used for filling the MMU map for DDR at run time based information read from Device Tree or automatically detected from static configuration.
Signed-off-by: Nitin Jain <[email protected]> Signed-off-by: Siva Durga Prasad Paladugu <[email protected]> Signed-off-by: Michal Simek <[email protected]> --- arch/arm/cpu/armv8/zynqmp/cpu.c | 84 ++++++++++++-------- arch/arm/include/asm/arch-zynqmp/sys_proto.h | 2 +- board/xilinx/zynqmp/zynqmp.c | 22 ++++- 3 files changed, 74 insertions(+), 34 deletions(-) diff --git a/arch/arm/cpu/armv8/zynqmp/cpu.c b/arch/arm/cpu/armv8/zynqmp/cpu.c index 14e7d4006494..5db5fafc6f65 100644 --- a/arch/arm/cpu/armv8/zynqmp/cpu.c +++ b/arch/arm/cpu/armv8/zynqmp/cpu.c @@ -16,16 +16,28 @@ DECLARE_GLOBAL_DATA_PTR; -static struct mm_region zynqmp_mem_map[] = { +/* + * Number of filled static entries and also the first empty + * slot in zynqmp_mem_map. + */ +#define ZYNQMP_MEM_MAP_USED 4 + #if !defined(CONFIG_ZYNQMP_NO_DDR) - { - .virt = 0x0UL, - .phys = 0x0UL, - .size = 0x80000000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | - PTE_BLOCK_INNER_SHARE - }, +#define DRAM_BANKS CONFIG_NR_DRAM_BANKS +#else +#define DRAM_BANKS 0 #endif + +#if defined(CONFIG_DEFINE_TCM_OCM_MMAP) +#define TCM_MAP 1 +#else +#define TCM_MAP 0 +#endif + +/* +1 is end of list which needs to be empty */ +#define ZYNQMP_MEM_MAP_MAX (ZYNQMP_MEM_MAP_USED + DRAM_BANKS + TCM_MAP + 1) + +static struct mm_region zynqmp_mem_map[ZYNQMP_MEM_MAP_MAX] = { { .virt = 0x80000000UL, .phys = 0x80000000UL, @@ -33,8 +45,7 @@ static struct mm_region zynqmp_mem_map[] = { .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN - }, - { + }, { .virt = 0xf8000000UL, .phys = 0xf8000000UL, .size = 0x07e00000UL, @@ -42,42 +53,51 @@ static struct mm_region zynqmp_mem_map[] = { PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN }, { -#if defined(CONFIG_DEFINE_TCM_OCM_MMAP) - .virt = 0xffe00000UL, - .phys = 0xffe00000UL, - .size = 0x00200000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | - PTE_BLOCK_INNER_SHARE - }, { -#endif .virt = 0x400000000UL, .phys = 0x400000000UL, .size = 0x400000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN - }, -#if !defined(CONFIG_ZYNQMP_NO_DDR) - { - .virt = 0x800000000UL, - .phys = 0x800000000UL, - .size = 0x800000000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | - PTE_BLOCK_INNER_SHARE - }, -#endif - { + }, { .virt = 0x1000000000UL, .phys = 0x1000000000UL, .size = 0xf000000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN - }, { - /* List terminator */ - 0, } }; + +void mem_map_fill(void) +{ + int banks = ZYNQMP_MEM_MAP_USED; + +#if defined(CONFIG_DEFINE_TCM_OCM_MMAP) + zynqmp_mem_map[banks].virt = 0xffe00000UL; + zynqmp_mem_map[banks].phys = 0xffe00000UL; + zynqmp_mem_map[banks].size = 0x00200000UL; + zynqmp_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE; + banks = banks + 1; +#endif + +#if !defined(CONFIG_ZYNQMP_NO_DDR) + for (int i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + /* Skip empty banks */ + if (!gd->bd->bi_dram[i].size) + break; + + zynqmp_mem_map[banks].virt = gd->bd->bi_dram[i].start; + zynqmp_mem_map[banks].phys = gd->bd->bi_dram[i].start; + zynqmp_mem_map[banks].size = gd->bd->bi_dram[i].size; + zynqmp_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE; + banks = banks + 1; + } +#endif +} + struct mm_region *mem_map = zynqmp_mem_map; u64 get_page_table_size(void) diff --git a/arch/arm/include/asm/arch-zynqmp/sys_proto.h b/arch/arm/include/asm/arch-zynqmp/sys_proto.h index 3daf0e81d80c..d11c0782b8dd 100644 --- a/arch/arm/include/asm/arch-zynqmp/sys_proto.h +++ b/arch/arm/include/asm/arch-zynqmp/sys_proto.h @@ -46,7 +46,7 @@ int invoke_smc(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 *ret_payload); void initialize_tcm(bool mode); - +void mem_map_fill(void); int chip_id(unsigned char id); #endif /* _ASM_ARCH_SYS_PROTO_H */ diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c index aeef0b4cdd7e..6d09a4c73139 100644 --- a/board/xilinx/zynqmp/zynqmp.c +++ b/board/xilinx/zynqmp/zynqmp.c @@ -406,7 +406,15 @@ unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc, #if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE) int dram_init_banksize(void) { - return fdtdec_setup_memory_banksize(); + int ret; + + ret = fdtdec_setup_memory_banksize(); + if (ret) + return ret; + + mem_map_fill(); + + return 0; } int dram_init(void) @@ -417,6 +425,18 @@ int dram_init(void) return 0; } #else +int dram_init_banksize(void) +{ +#if defined(CONFIG_NR_DRAM_BANKS) + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = get_effective_memsize(); +#endif + + mem_map_fill(); + + return 0; +} + int dram_init(void) { gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, -- 2.17.0 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
