1 // SPDX-License-Identifier: GPL-2.0-only
30 	 * a chip-specific register address, so look it up in the registers  in wl1251_translate_reg_addr()
36 			return -EINVAL;  in wl1251_translate_reg_addr()
41 	return addr - wl->physical_reg_addr + wl->virtual_reg_addr;  in wl1251_translate_reg_addr()
46 	return addr - wl->physical_mem_addr + wl->virtual_mem_addr;  in wl1251_translate_mem_addr()
55 	wl->if_ops->read(wl, physical, buf, len);  in wl1251_mem_read()
64 	wl->if_ops->write(wl, physical, buf, len);  in wl1251_mem_write()
89  * There are two VIRTUAL partitions (the memory partition and the
90  * registers partition), which are mapped to two different areas of the
93  * memory partition comes before the register partition, but the opposite is
100  *                                 ...+----+--> mem_start
104  * 0x00000000 <--+----+...         ...+----+--> mem_start + mem_size
108  *  part_size <--+----+...            |    | {unused area)
112  *      +     <--+----+...         ...+----+--> reg_start
116  *                                 ...+----+--> reg_start + reg_size
124 	struct wl1251_partition_set *partition;  in wl1251_set_partition()  local
126 	partition = kmalloc(sizeof(*partition), GFP_KERNEL);  in wl1251_set_partition()
127 	if (!partition) {  in wl1251_set_partition()
128 		wl1251_error("can not allocate partition buffer");  in wl1251_set_partition()
141 			     " address range.  Truncating partition[0].");  in wl1251_set_partition()
142 		mem_size = HW_ACCESS_MEMORY_MAX_RANGE - reg_size;  in wl1251_set_partition()
151 		/* Guarantee that the memory partition doesn't overlap the  in wl1251_set_partition()
152 		 * registers partition */  in wl1251_set_partition()
153 		wl1251_debug(DEBUG_SPI, "End of partition[0] is "  in wl1251_set_partition()
154 			     "overlapping partition[1].  Adjusted.");  in wl1251_set_partition()
155 		mem_size = reg_start - mem_start;  in wl1251_set_partition()
162 		/* Guarantee that the register partition doesn't overlap the  in wl1251_set_partition()
163 		 * memory partition */  in wl1251_set_partition()
164 		wl1251_debug(DEBUG_SPI, "End of partition[1] is"  in wl1251_set_partition()
165 			     " overlapping partition[0].  Adjusted.");  in wl1251_set_partition()
166 		reg_size = mem_start - reg_start;  in wl1251_set_partition()
173 	partition->mem.start = mem_start;  in wl1251_set_partition()
174 	partition->mem.size  = mem_size;  in wl1251_set_partition()
175 	partition->reg.start = reg_start;  in wl1251_set_partition()
176 	partition->reg.size  = reg_size;  in wl1251_set_partition()
178 	wl->physical_mem_addr = mem_start;  in wl1251_set_partition()
179 	wl->physical_reg_addr = reg_start;  in wl1251_set_partition()
181 	wl->virtual_mem_addr = 0;  in wl1251_set_partition()
182 	wl->virtual_reg_addr = mem_size;  in wl1251_set_partition()
184 	wl->if_ops->write(wl, HW_ACCESS_PART0_SIZE_ADDR, partition,  in wl1251_set_partition()
185 		sizeof(*partition));  in wl1251_set_partition()
187 	kfree(partition);  in wl1251_set_partition()