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| |
| /** |
| * Functions and macros for libdram access to CSR. These build |
| * on the normal BDK functions to allow logging of CSRs based on |
| * the libdram verbosity level. Internal use only. |
| */ |
| |
| /** |
| * Write a CSR, possibly logging it based on the verbosity |
| * level. You should use DRAM_CSR_WRITE() as a convientent |
| * wrapper. |
| * |
| * @param node |
| * @param csr_name |
| * @param type |
| * @param busnum |
| * @param size |
| * @param address |
| * @param value |
| */ |
| #ifdef DRAM_CSR_WRITE_INLINE |
| static inline void dram_csr_write(bdk_node_t node, const char *csr_name, bdk_csr_type_t type, int busnum, int size, uint64_t address, uint64_t value) __attribute__((always_inline)); |
| static inline void dram_csr_write(bdk_node_t node, const char *csr_name, bdk_csr_type_t type, int busnum, int size, uint64_t address, uint64_t value) |
| { |
| VB_PRT(VBL_CSRS, "N%d: DDR Config %s[%016lx] => %016lx\n", node, csr_name, address, value); |
| bdk_csr_write(node, type, busnum, size, address, value); |
| } |
| #else |
| extern void dram_csr_write(bdk_node_t node, const char *csr_name, bdk_csr_type_t type, int busnum, int size, uint64_t address, uint64_t value); |
| #endif |
| |
| /** |
| * Macro to write a CSR, logging if necessary |
| */ |
| #define DRAM_CSR_WRITE(node, csr, value) \ |
| dram_csr_write(node, basename_##csr, bustype_##csr, busnum_##csr, sizeof(typedef_##csr), csr, value) |
| |
| /** |
| * Macro to make a read, modify, and write sequence easy. The "code_block" |
| * should be replaced with a C code block or a comma separated list of |
| * "name.s.field = value", without the quotes. |
| */ |
| #define DRAM_CSR_MODIFY(name, node, csr, code_block) do { \ |
| typedef_##csr name = {.u = bdk_csr_read(node, bustype_##csr, busnum_##csr, sizeof(typedef_##csr), csr)}; \ |
| code_block; \ |
| dram_csr_write(node, basename_##csr, bustype_##csr, busnum_##csr, sizeof(typedef_##csr), csr, name.u); \ |
| } while (0) |
| |