xref: /aosp_15_r20/external/coreboot/src/soc/mediatek/common/mcupm.c (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <console/console.h>
4 #include <device/mmio.h>
5 #include <soc/mcu_common.h>
6 #include <soc/mcupm.h>
7 #include <soc/symbols.h>
8 
9 #define ABNORMALBOOT_REG	0x0C55FAA0
10 
reset_mcupm(struct mtk_mcu * mcu)11 static void reset_mcupm(struct mtk_mcu *mcu)
12 {
13 	/* Clear abnormal boot register */
14 	write32p(ABNORMALBOOT_REG, 0x0);
15 	write32(&mcupm_reg->sw_rstn, 0x1);
16 }
17 
18 static struct mtk_mcu mcupm = {
19 	.firmware_name = CONFIG_MCUPM_FIRMWARE,
20 	.run_address = (void *)MCUPM_SRAM_BASE,
21 	.reset = reset_mcupm,
22 };
23 
mcupm_init(void)24 void mcupm_init(void)
25 {
26 	mcupm.load_buffer = _dram_dma;
27 	mcupm.buffer_size = REGION_SIZE(dram_dma);
28 
29 	write32(&mcupm_reg->sw_rstn, 0x0);
30 
31 	if (mtk_init_mcu(&mcupm))
32 		die("%s() failed\n", __func__);
33 }
34