diff options
Diffstat (limited to 'platform/thead/c910/platform.c')
| -rw-r--r-- | platform/thead/c910/platform.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/platform/thead/c910/platform.c b/platform/thead/c910/platform.c deleted file mode 100644 index dfa484a..0000000 --- a/platform/thead/c910/platform.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * SPDX-License-Identifier: BSD-2-Clause - */ - -#include <sbi/riscv_encoding.h> -#include <sbi/riscv_io.h> -#include <sbi/sbi_console.h> -#include <sbi/sbi_const.h> -#include <sbi/sbi_hart.h> -#include <sbi/sbi_platform.h> -#include <sbi_utils/irqchip/plic.h> -#include <sbi_utils/serial/uart8250.h> -#include <sbi_utils/sys/clint.h> -#include "platform.h" - -static struct c910_regs_struct c910_regs; - -static struct clint_data clint = { - .addr = 0, /* Updated at cold boot time */ - .first_hartid = 0, - .hart_count = C910_HART_COUNT, - .has_64bit_mmio = FALSE, -}; - -static int c910_early_init(bool cold_boot) -{ - if (cold_boot) { - /* Load from boot core */ - c910_regs.pmpaddr0 = csr_read(CSR_PMPADDR0); - c910_regs.pmpaddr1 = csr_read(CSR_PMPADDR1); - c910_regs.pmpaddr2 = csr_read(CSR_PMPADDR2); - c910_regs.pmpaddr3 = csr_read(CSR_PMPADDR3); - c910_regs.pmpaddr4 = csr_read(CSR_PMPADDR4); - c910_regs.pmpaddr5 = csr_read(CSR_PMPADDR5); - c910_regs.pmpaddr6 = csr_read(CSR_PMPADDR6); - c910_regs.pmpaddr7 = csr_read(CSR_PMPADDR7); - c910_regs.pmpcfg0 = csr_read(CSR_PMPCFG0); - - c910_regs.mcor = csr_read(CSR_MCOR); - c910_regs.mhcr = csr_read(CSR_MHCR); - c910_regs.mccr2 = csr_read(CSR_MCCR2); - c910_regs.mhint = csr_read(CSR_MHINT); - c910_regs.mxstatus = csr_read(CSR_MXSTATUS); - - c910_regs.plic_base_addr = csr_read(CSR_PLIC_BASE); - c910_regs.clint_base_addr = - c910_regs.plic_base_addr + C910_PLIC_CLINT_OFFSET; - } else { - /* Store to other core */ - csr_write(CSR_PMPADDR0, c910_regs.pmpaddr0); - csr_write(CSR_PMPADDR1, c910_regs.pmpaddr1); - csr_write(CSR_PMPADDR2, c910_regs.pmpaddr2); - csr_write(CSR_PMPADDR3, c910_regs.pmpaddr3); - csr_write(CSR_PMPADDR4, c910_regs.pmpaddr4); - csr_write(CSR_PMPADDR5, c910_regs.pmpaddr5); - csr_write(CSR_PMPADDR6, c910_regs.pmpaddr6); - csr_write(CSR_PMPADDR7, c910_regs.pmpaddr7); - csr_write(CSR_PMPCFG0, c910_regs.pmpcfg0); - - csr_write(CSR_MCOR, c910_regs.mcor); - csr_write(CSR_MHCR, c910_regs.mhcr); - csr_write(CSR_MHINT, c910_regs.mhint); - csr_write(CSR_MXSTATUS, c910_regs.mxstatus); - } - - return 0; -} - -static int c910_final_init(bool cold_boot) -{ - return 0; -} - -static int c910_irqchip_init(bool cold_boot) -{ - /* Delegate plic enable into S-mode */ - writel(C910_PLIC_DELEG_ENABLE, - (void *)c910_regs.plic_base_addr + C910_PLIC_DELEG_OFFSET); - - return 0; -} - -static int c910_ipi_init(bool cold_boot) -{ - int rc; - - if (cold_boot) { - clint.addr = c910_regs.clint_base_addr; - rc = clint_cold_ipi_init(&clint); - if (rc) - return rc; - } - - return clint_warm_ipi_init(); -} - -static int c910_timer_init(bool cold_boot) -{ - int ret; - - if (cold_boot) { - clint.addr = c910_regs.clint_base_addr; - ret = clint_cold_timer_init(&clint, NULL); - if (ret) - return ret; - } - - return clint_warm_timer_init(); -} - -static int c910_system_reset_check(u32 type, u32 reason) -{ - return 1; -} - -static void c910_system_reset(u32 type, u32 reason) -{ - asm volatile ("ebreak"); -} - -int c910_hart_start(u32 hartid, ulong saddr) -{ - csr_write(CSR_MRVBR, saddr); - csr_write(CSR_MRMR, csr_read(CSR_MRMR) | (1 << hartid)); - - return 0; -} - -const struct sbi_platform_operations platform_ops = { - .early_init = c910_early_init, - .final_init = c910_final_init, - - .irqchip_init = c910_irqchip_init, - - .ipi_init = c910_ipi_init, - .ipi_send = clint_ipi_send, - .ipi_clear = clint_ipi_clear, - - .timer_init = c910_timer_init, - .timer_event_start = clint_timer_event_start, - - .system_reset_check = c910_system_reset_check, - .system_reset = c910_system_reset, - - .hart_start = c910_hart_start, -}; - -const struct sbi_platform platform = { - .opensbi_version = OPENSBI_VERSION, - .platform_version = SBI_PLATFORM_VERSION(0x0, 0x01), - .name = "T-HEAD Xuantie c910", - .features = SBI_THEAD_FEATURES, - .hart_count = C910_HART_COUNT, - .hart_stack_size = SBI_PLATFORM_DEFAULT_HART_STACK_SIZE, - .platform_ops_addr = (unsigned long)&platform_ops -}; |