csr_writel
csr_writel(csr_readl(0xffffffec) | 0x1, 0xffffffec);
csr_writel(action, LOONGSON_CSR_IPI_CLEAR);
csr_writel(val, LOONGSON_CSR_IPI_SEND);
csr_writel(0xffffffff, LOONGSON_CSR_IPI_EN);
void csr_writel(struct vpu_core *core, u32 reg, u32 val);
csr_writel(core, IMX8Q_CSR_CM0Px_ADDR_OFFSET, core->fw.phys);
csr_writel(core, IMX8Q_CSR_CM0Px_CPUWAIT, 0);