4  * SPDX-License-Identifier: Apache-2.0
14  *	0: no-cache
28 #define CACHED_SRAM_END		(CACHED_SRAM_ADDR + CACHED_SRAM_SIZE - 1)
40 /* cache size = 32B * 128 = 4KB */
52 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in aspeed_cache_init()  local
55 	/* set all cache areas to no-cache by default */  in aspeed_cache_init()
56 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, 0);  in aspeed_cache_init()
59 	max_bit = 8 * sizeof(uint32_t) - 1;  in aspeed_cache_init()
62 	syscon_write_reg(dev, CACHE_AREA_CTRL_REG, GENMASK(end_bit, start_bit));  in aspeed_cache_init()
65 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, CACHE_ENABLE);  in aspeed_cache_init()
70  * @param [IN] addr - start address to be invalidated
71  * @param [IN] size - size in byte
72  * @param [OUT] p_aligned_addr - pointer to the cacheline aligned address variable
76  *   |--------size-------------|
77  * |-----|-----|-----|-----|-----|
82  * addr = 0x100 (cacheline aligned), size = 64
87  * addr = 0x104 (cacheline unaligned), size = 64
91 static uint32_t get_n_cacheline(uint32_t addr, uint32_t size, uint32_t *p_head)  in get_n_cacheline()  argument
100 	tail = addr + size + (CACHE_LINE_SIZE - 1);  in get_n_cacheline()
103 	n = (tail - *p_head) >> CACHE_LINE_SIZE_LOG2;  in get_n_cacheline()
115 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_data_disable()  local
117 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, 0);  in cache_data_disable()
127 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_instr_disable()  local
129 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, 0);  in cache_instr_disable()
134 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_data_invd_all()  local
138 	syscon_read_reg(dev, CACHE_FUNC_CTRL_REG, &ctrl);  in cache_data_invd_all()
146 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, ctrl);  in cache_data_invd_all()
150 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, ctrl);  in cache_data_invd_all()
161 int cache_data_invd_range(void *addr, size_t size)  in cache_data_invd_range()  argument
164 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_data_invd_range()  local
177 	n = get_n_cacheline((uint32_t)addr, size, &aligned_addr);  in cache_data_invd_range()
180 		syscon_write_reg(dev, CACHE_INVALID_REG, 0);  in cache_data_invd_range()
181 		syscon_write_reg(dev, CACHE_INVALID_REG, DCACHE_INVALID(aligned_addr));  in cache_data_invd_range()
196 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_instr_invd_all()  local
200 	syscon_read_reg(dev, CACHE_FUNC_CTRL_REG, &ctrl);  in cache_instr_invd_all()
208 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, ctrl);  in cache_instr_invd_all()
211 	syscon_write_reg(dev, CACHE_FUNC_CTRL_REG, ctrl);  in cache_instr_invd_all()
222 int cache_instr_invd_range(void *addr, size_t size)  in cache_instr_invd_range()  argument
225 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_instr_invd_range()  local
233 	n = get_n_cacheline((uint32_t)addr, size, &aligned_addr);  in cache_instr_invd_range()
241 		syscon_write_reg(dev, CACHE_INVALID_REG, 0);  in cache_instr_invd_range()
242 		syscon_write_reg(dev, CACHE_INVALID_REG, ICACHE_INVALID(aligned_addr));  in cache_instr_invd_range()
257 	return -ENOTSUP;  in cache_data_flush_all()
262 	return -ENOTSUP;  in cache_data_flush_and_invd_all()
265 int cache_data_flush_range(void *addr, size_t size)  in cache_data_flush_range()  argument
268 	ARG_UNUSED(size);  in cache_data_flush_range()
270 	return -ENOTSUP;  in cache_data_flush_range()
273 int cache_data_flush_and_invd_range(void *addr, size_t size)  in cache_data_flush_and_invd_range()  argument
276 	ARG_UNUSED(size);  in cache_data_flush_and_invd_range()
278 	return -ENOTSUP;  in cache_data_flush_and_invd_range()
283 	return -ENOTSUP;  in cache_instr_flush_all()
288 	return -ENOTSUP;  in cache_instr_flush_and_invd_all()
291 int cache_instr_flush_range(void *addr, size_t size)  in cache_instr_flush_range()  argument
294 	ARG_UNUSED(size);  in cache_instr_flush_range()
296 	return -ENOTSUP;  in cache_instr_flush_range()
299 int cache_instr_flush_and_invd_range(void *addr, size_t size)  in cache_instr_flush_and_invd_range()  argument
302 	ARG_UNUSED(size);  in cache_instr_flush_and_invd_range()
304 	return -ENOTSUP;  in cache_instr_flush_and_invd_range()
311 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_data_line_size_get()  local
314 	syscon_read_reg(dev, CACHE_FUNC_CTRL_REG, &ctrl);  in cache_data_line_size_get()
323 	const struct device *const dev = DEVICE_DT_GET(DT_NODELABEL(syscon));  in cache_instr_line_size_get()  local
326 	syscon_read_reg(dev, CACHE_FUNC_CTRL_REG, &ctrl);  in cache_instr_line_size_get()