From 3a20cd12bf348482c9bdd86a98667080011e9443 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sun, 11 Dec 2022 11:08:24 +0800 Subject: hw/riscv: sifive_e: Fix the number of interrupt sources of PLIC Per chapter 10 in Freedom E310 manuals [1][2][3], E310 G002 and G003 supports 52 interrupt sources while G000 supports 51 interrupt sources. We use the value of G002 and G003, so it is 53 (including source 0). [1] G000 manual: https://sifive.cdn.prismic.io/sifive/4faf3e34-4a42-4c2f-be9e-c77baa4928c7_fe310-g000-manual-v3p2.pdf [2] G002 manual: https://sifive.cdn.prismic.io/sifive/034760b5-ac6a-4b1c-911c-f4148bb2c4a5_fe310-g002-v1p5.pdf [3] G003 manual: https://sifive.cdn.prismic.io/sifive/3af39c59-6498-471e-9dab-5355a0d539eb_fe310-g003-manual.pdf Fixes: eb637edb1241 ("SiFive Freedom E Series RISC-V Machine") Signed-off-by: Bin Meng Reviewed-by: Wilfred Mallawa Reviewed-by: Alistair Francis Message-Id: <20221211030829.802437-11-bmeng@tinylab.org> Signed-off-by: Alistair Francis --- include/hw/riscv/sifive_e.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h index d738745..9e58247 100644 --- a/include/hw/riscv/sifive_e.h +++ b/include/hw/riscv/sifive_e.h @@ -82,7 +82,12 @@ enum { }; #define SIFIVE_E_PLIC_HART_CONFIG "M" -#define SIFIVE_E_PLIC_NUM_SOURCES 127 +/* + * Freedom E310 G002 and G003 supports 52 interrupt sources while + * Freedom E310 G000 supports 51 interrupt sources. We use the value + * of G002 and G003, so it is 53 (including interrupt source 0). + */ +#define SIFIVE_E_PLIC_NUM_SOURCES 53 #define SIFIVE_E_PLIC_NUM_PRIORITIES 7 #define SIFIVE_E_PLIC_PRIORITY_BASE 0x04 #define SIFIVE_E_PLIC_PENDING_BASE 0x1000 -- cgit v1.1