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authorPadmarao Begari <padmarao.begari@microchip.com>2022-09-19 18:30:26 +0530
committerJoel Sherrill <joel@rtems.org>2022-09-20 12:00:51 -0500
commit6b0d3c987349d188b65e9fc8229daeba247928c5 (patch)
tree4f6f37aaab9be619b82612eb4f000a42549488ca /bsps/riscv/shared/start/start.S
parentspec/build/bsps: Add dtb support (diff)
downloadrtems-6b0d3c987349d188b65e9fc8229daeba247928c5.tar.bz2
bsps/riscv: Add Microchip PolarFire SoC BSP variant
The Microchip PolarFire SoC support is implemented as a riscv BSP variant to boot with any individual hart(cpu core) or SMP based on the boot HARTID configurable and support components are 4 CPU Cores (U54), Interrupt controller (PLIC), Timer (CLINT), UART.
Diffstat (limited to '')
-rw-r--r--bsps/riscv/shared/start/start.S2
1 files changed, 2 insertions, 0 deletions
diff --git a/bsps/riscv/shared/start/start.S b/bsps/riscv/shared/start/start.S
index 3702f8ac2f..47bb485847 100644
--- a/bsps/riscv/shared/start/start.S
+++ b/bsps/riscv/shared/start/start.S
@@ -65,6 +65,8 @@ SYM(_start):
LADDR sp, _ISR_Stack_area_begin
LADDR t2, _ISR_Stack_size
csrr s0, mhartid
+ li t3, RISCV_BOOT_HARTID
+ sub s0, s0, t3
LADDR t0, _Per_CPU_Information
slli t1, s0, PER_CPU_CONTROL_SIZE_LOG2
add s1, t0, t1