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authorAlistair Francis <alistair.francis@wdc.com>2020-12-16 10:22:37 -0800
committerAlistair Francis <alistair.francis@wdc.com>2020-12-17 21:56:44 -0800
commit7893677184681d648165caf9e8a25fccc79b4cf3 (patch)
tree70642cebd297884cd070dc56bab3bd945acc615f /hw/riscv/boot.c
parent09fe17125ec9a2166cf9bef360811dde714b3874 (diff)
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hw/riscv: boot: Remove compile time XLEN checks
Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Tested-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Message-id: 51e9842dbed1acceebad7f97bd3aae69aa1ac19e.1608142916.git.alistair.francis@wdc.com
Diffstat (limited to 'hw/riscv/boot.c')
-rw-r--r--hw/riscv/boot.c55
1 files changed, 30 insertions, 25 deletions
diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c
index 3c70ac7..6bce6fb 100644
--- a/hw/riscv/boot.c
+++ b/hw/riscv/boot.c
@@ -33,12 +33,6 @@
#include <libfdt.h>
-#if defined(TARGET_RISCV32)
-#define fw_dynamic_info_data(__val) cpu_to_le32(__val)
-#else
-#define fw_dynamic_info_data(__val) cpu_to_le64(__val)
-#endif
-
bool riscv_is_32_bit(MachineState *machine)
{
/*
@@ -228,16 +222,24 @@ uint32_t riscv_load_fdt(hwaddr dram_base, uint64_t mem_size, void *fdt)
return fdt_addr;
}
-void riscv_rom_copy_firmware_info(hwaddr rom_base, hwaddr rom_size,
- uint32_t reset_vec_size, uint64_t kernel_entry)
+void riscv_rom_copy_firmware_info(MachineState *machine, hwaddr rom_base,
+ hwaddr rom_size, uint32_t reset_vec_size,
+ uint64_t kernel_entry)
{
struct fw_dynamic_info dinfo;
size_t dinfo_len;
- dinfo.magic = fw_dynamic_info_data(FW_DYNAMIC_INFO_MAGIC_VALUE);
- dinfo.version = fw_dynamic_info_data(FW_DYNAMIC_INFO_VERSION);
- dinfo.next_mode = fw_dynamic_info_data(FW_DYNAMIC_INFO_NEXT_MODE_S);
- dinfo.next_addr = fw_dynamic_info_data(kernel_entry);
+ if (sizeof(dinfo.magic) == 4) {
+ dinfo.magic = cpu_to_le32(FW_DYNAMIC_INFO_MAGIC_VALUE);
+ dinfo.version = cpu_to_le32(FW_DYNAMIC_INFO_VERSION);
+ dinfo.next_mode = cpu_to_le32(FW_DYNAMIC_INFO_NEXT_MODE_S);
+ dinfo.next_addr = cpu_to_le32(kernel_entry);
+ } else {
+ dinfo.magic = cpu_to_le64(FW_DYNAMIC_INFO_MAGIC_VALUE);
+ dinfo.version = cpu_to_le64(FW_DYNAMIC_INFO_VERSION);
+ dinfo.next_mode = cpu_to_le64(FW_DYNAMIC_INFO_NEXT_MODE_S);
+ dinfo.next_addr = cpu_to_le64(kernel_entry);
+ }
dinfo.options = 0;
dinfo.boot_hart = 0;
dinfo_len = sizeof(dinfo);
@@ -257,28 +259,24 @@ void riscv_rom_copy_firmware_info(hwaddr rom_base, hwaddr rom_size,
&address_space_memory);
}
-void riscv_setup_rom_reset_vec(hwaddr start_addr, hwaddr rom_base,
- hwaddr rom_size, uint64_t kernel_entry,
+void riscv_setup_rom_reset_vec(MachineState *machine, hwaddr start_addr,
+ hwaddr rom_base, hwaddr rom_size,
+ uint64_t kernel_entry,
uint32_t fdt_load_addr, void *fdt)
{
int i;
uint32_t start_addr_hi32 = 0x00000000;
- #if defined(TARGET_RISCV64)
- start_addr_hi32 = start_addr >> 32;
- #endif
+ if (!riscv_is_32_bit(machine)) {
+ start_addr_hi32 = start_addr >> 32;
+ }
/* reset vector */
uint32_t reset_vec[10] = {
0x00000297, /* 1: auipc t0, %pcrel_hi(fw_dyn) */
0x02828613, /* addi a2, t0, %pcrel_lo(1b) */
0xf1402573, /* csrr a0, mhartid */
-#if defined(TARGET_RISCV32)
- 0x0202a583, /* lw a1, 32(t0) */
- 0x0182a283, /* lw t0, 24(t0) */
-#elif defined(TARGET_RISCV64)
- 0x0202b583, /* ld a1, 32(t0) */
- 0x0182b283, /* ld t0, 24(t0) */
-#endif
+ 0,
+ 0,
0x00028067, /* jr t0 */
start_addr, /* start: .dword */
start_addr_hi32,
@@ -286,6 +284,13 @@ void riscv_setup_rom_reset_vec(hwaddr start_addr, hwaddr rom_base,
0x00000000,
/* fw_dyn: */
};
+ if (riscv_is_32_bit(machine)) {
+ reset_vec[3] = 0x0202a583; /* lw a1, 32(t0) */
+ reset_vec[4] = 0x0182a283; /* lw t0, 24(t0) */
+ } else {
+ reset_vec[3] = 0x0202b583; /* ld a1, 32(t0) */
+ reset_vec[4] = 0x0182b283; /* ld t0, 24(t0) */
+ }
/* copy in the reset vector in little_endian byte order */
for (i = 0; i < ARRAY_SIZE(reset_vec); i++) {
@@ -293,7 +298,7 @@ void riscv_setup_rom_reset_vec(hwaddr start_addr, hwaddr rom_base,
}
rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec),
rom_base, &address_space_memory);
- riscv_rom_copy_firmware_info(rom_base, rom_size, sizeof(reset_vec),
+ riscv_rom_copy_firmware_info(machine, rom_base, rom_size, sizeof(reset_vec),
kernel_entry);
return;