diff options
Diffstat (limited to 'arch/arm/mach-shmobile/setup-rcar-gen2.c')
| -rw-r--r-- | arch/arm/mach-shmobile/setup-rcar-gen2.c | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c index c38367a10c79..3cd34a42e39b 100644 --- a/arch/arm/mach-shmobile/setup-rcar-gen2.c +++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c @@ -8,19 +8,15 @@ */ #include <linux/clocksource.h> -#include <linux/device.h> -#include <linux/dma-map-ops.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/memblock.h> #include <linux/of.h> #include <linux/of_clk.h> -#include <linux/of_fdt.h> #include <linux/psci.h> #include <asm/mach/arch.h> #include <asm/secure_cntvoff.h> #include "common.h" -#include "rcar-gen2.h" static const struct of_device_id cpg_matches[] __initconst = { { .compatible = "renesas,r8a7742-cpg-mssr", .data = "extal" }, @@ -122,76 +118,6 @@ skip_update: timer_probe(); } -struct memory_reserve_config { - u64 reserved; - u64 base, size; -}; - -static int __init rcar_gen2_scan_mem(unsigned long node, const char *uname, - int depth, void *data) -{ - const char *type = of_get_flat_dt_prop(node, "device_type", NULL); - const __be32 *reg, *endp; - int l; - struct memory_reserve_config *mrc = data; - u64 lpae_start = 1ULL << 32; - - /* We are scanning "memory" nodes only */ - if (type == NULL || strcmp(type, "memory")) - return 0; - - reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l); - if (reg == NULL) - reg = of_get_flat_dt_prop(node, "reg", &l); - if (reg == NULL) - return 0; - - endp = reg + (l / sizeof(__be32)); - while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) { - u64 base, size; - - base = dt_mem_next_cell(dt_root_addr_cells, ®); - size = dt_mem_next_cell(dt_root_size_cells, ®); - - if (base >= lpae_start) - continue; - - if ((base + size) >= lpae_start) - size = lpae_start - base; - - if (size < mrc->reserved) - continue; - - if (base < mrc->base) - continue; - - /* keep the area at top near the 32-bit legacy limit */ - mrc->base = base + size - mrc->reserved; - mrc->size = mrc->reserved; - } - - return 0; -} - -static void __init rcar_gen2_reserve(void) -{ - struct memory_reserve_config mrc; - - /* reserve 256 MiB at the top of the physical legacy 32-bit space */ - memset(&mrc, 0, sizeof(mrc)); - mrc.reserved = SZ_256M; - - of_scan_flat_dt(rcar_gen2_scan_mem, &mrc); -#ifdef CONFIG_DMA_CMA - if (mrc.size && memblock_is_region_memory(mrc.base, mrc.size)) { - static struct cma *rcar_gen2_dma_contiguous; - - dma_contiguous_reserve_area(mrc.size, mrc.base, 0, - &rcar_gen2_dma_contiguous, true); - } -#endif -} - static const char * const rcar_gen2_boards_compat_dt[] __initconst = { "renesas,r8a7790", "renesas,r8a7791", @@ -204,7 +130,6 @@ static const char * const rcar_gen2_boards_compat_dt[] __initconst = { DT_MACHINE_START(RCAR_GEN2_DT, "Generic R-Car Gen2 (Flattened Device Tree)") .init_late = shmobile_init_late, .init_time = rcar_gen2_timer_init, - .reserve = rcar_gen2_reserve, .dt_compat = rcar_gen2_boards_compat_dt, MACHINE_END @@ -220,6 +145,5 @@ static const char * const rz_g1_boards_compat_dt[] __initconst = { DT_MACHINE_START(RZ_G1_DT, "Generic RZ/G1 (Flattened Device Tree)") .init_late = shmobile_init_late, .init_time = rcar_gen2_timer_init, - .reserve = rcar_gen2_reserve, .dt_compat = rz_g1_boards_compat_dt, MACHINE_END |