99545b4bb1
This target adds support for the Allwinner D1 RISC-V based SoCs.
- RISC-V single-core T-Head C906 (RV64GCV)
- Tensilica HiFi4 DSP
- DDR2/DDR3 support
- 10/100/1000M ethernet
- usual peripherals like USB2, SPI, I2C, PWM, etc.
Four boards are supported:
- Dongshan Nezha STU
- 512Mb RAM
- ethernet
- LicheePi RV Dock
- 512Mb RAM
- wireless-only (RTL8723DS)
- MangoPi MQ-Pro
- 512Mb RAM
- there are pads available for an SPI flash
- wireless-only (RTL8723DS)
- Nezha D1
- 512Mb/1Gb/2Gb RAM
- 256Mb NAND flash
- ethernet, wireless
Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
82 lines
3.8 KiB
Diff
82 lines
3.8 KiB
Diff
From b6af4b7f6f75904509747c08e87d91c1bb607bd4 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Thu, 22 Sep 2022 00:39:36 -0500
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Subject: [PATCH 098/117] riscv: Move cast inside kernel_mapping_[pv]a_to_[vp]a
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Before commit 44c922572952 ("RISC-V: enable XIP"), these macros cast
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their argument to unsigned long. That commit moved the cast after an
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assignment to an unsigned long variable, rendering it ineffectual.
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Move the cast back, so we can remove the cast at each call site.
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Series-to: Palmer Dabbelt <palmer@dabbelt.com>
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Series-to: linux-riscv@lists.infradead.org
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Series-version: 2
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Reviewed-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
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Reviewed-by: Heiko Stuebner <heiko@sntech.de>
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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arch/riscv/include/asm/page.h | 18 +++++++++---------
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arch/riscv/mm/init.c | 16 ++++++++--------
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2 files changed, 17 insertions(+), 17 deletions(-)
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--- a/arch/riscv/include/asm/page.h
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+++ b/arch/riscv/include/asm/page.h
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@@ -123,20 +123,20 @@ extern phys_addr_t phys_ram_base;
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((x) >= PAGE_OFFSET && (!IS_ENABLED(CONFIG_64BIT) || (x) < PAGE_OFFSET + KERN_VIRT_SIZE))
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#define linear_mapping_pa_to_va(x) ((void *)((unsigned long)(x) + kernel_map.va_pa_offset))
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-#define kernel_mapping_pa_to_va(y) ({ \
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- unsigned long _y = y; \
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- (IS_ENABLED(CONFIG_XIP_KERNEL) && _y < phys_ram_base) ? \
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- (void *)((unsigned long)(_y) + kernel_map.va_kernel_xip_pa_offset) : \
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- (void *)((unsigned long)(_y) + kernel_map.va_kernel_pa_offset + XIP_OFFSET); \
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+#define kernel_mapping_pa_to_va(y) ({ \
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+ unsigned long _y = (unsigned long)(y); \
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+ (IS_ENABLED(CONFIG_XIP_KERNEL) && _y < phys_ram_base) ? \
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+ (void *)(_y + kernel_map.va_kernel_xip_pa_offset) : \
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+ (void *)(_y + kernel_map.va_kernel_pa_offset + XIP_OFFSET); \
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})
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#define __pa_to_va_nodebug(x) linear_mapping_pa_to_va(x)
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#define linear_mapping_va_to_pa(x) ((unsigned long)(x) - kernel_map.va_pa_offset)
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#define kernel_mapping_va_to_pa(y) ({ \
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- unsigned long _y = y; \
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- (IS_ENABLED(CONFIG_XIP_KERNEL) && _y < kernel_map.virt_addr + XIP_OFFSET) ? \
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- ((unsigned long)(_y) - kernel_map.va_kernel_xip_pa_offset) : \
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- ((unsigned long)(_y) - kernel_map.va_kernel_pa_offset - XIP_OFFSET); \
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+ unsigned long _y = (unsigned long)(y); \
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+ (IS_ENABLED(CONFIG_XIP_KERNEL) && _y < kernel_map.virt_addr + XIP_OFFSET) ? \
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+ (_y - kernel_map.va_kernel_xip_pa_offset) : \
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+ (_y - kernel_map.va_kernel_pa_offset - XIP_OFFSET); \
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})
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#define __va_to_pa_nodebug(x) ({ \
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--- a/arch/riscv/mm/init.c
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+++ b/arch/riscv/mm/init.c
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@@ -903,15 +903,15 @@ static void __init pt_ops_set_early(void
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*/
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static void __init pt_ops_set_fixmap(void)
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{
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- pt_ops.alloc_pte = kernel_mapping_pa_to_va((uintptr_t)alloc_pte_fixmap);
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- pt_ops.get_pte_virt = kernel_mapping_pa_to_va((uintptr_t)get_pte_virt_fixmap);
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+ pt_ops.alloc_pte = kernel_mapping_pa_to_va(alloc_pte_fixmap);
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+ pt_ops.get_pte_virt = kernel_mapping_pa_to_va(get_pte_virt_fixmap);
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#ifndef __PAGETABLE_PMD_FOLDED
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- pt_ops.alloc_pmd = kernel_mapping_pa_to_va((uintptr_t)alloc_pmd_fixmap);
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- pt_ops.get_pmd_virt = kernel_mapping_pa_to_va((uintptr_t)get_pmd_virt_fixmap);
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- pt_ops.alloc_pud = kernel_mapping_pa_to_va((uintptr_t)alloc_pud_fixmap);
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- pt_ops.get_pud_virt = kernel_mapping_pa_to_va((uintptr_t)get_pud_virt_fixmap);
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- pt_ops.alloc_p4d = kernel_mapping_pa_to_va((uintptr_t)alloc_p4d_fixmap);
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- pt_ops.get_p4d_virt = kernel_mapping_pa_to_va((uintptr_t)get_p4d_virt_fixmap);
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+ pt_ops.alloc_pmd = kernel_mapping_pa_to_va(alloc_pmd_fixmap);
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+ pt_ops.get_pmd_virt = kernel_mapping_pa_to_va(get_pmd_virt_fixmap);
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+ pt_ops.alloc_pud = kernel_mapping_pa_to_va(alloc_pud_fixmap);
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+ pt_ops.get_pud_virt = kernel_mapping_pa_to_va(get_pud_virt_fixmap);
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+ pt_ops.alloc_p4d = kernel_mapping_pa_to_va(alloc_p4d_fixmap);
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+ pt_ops.get_p4d_virt = kernel_mapping_pa_to_va(get_p4d_virt_fixmap);
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#endif
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}
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