1 files changed, 88 insertions, 0 deletions
diff --git a/sound/soc/amd/renoir/rn_acp3x.h b/sound/soc/amd/renoir/rn_acp3x.h
new file mode 100644
index 000000000000..75228e306e0b
--- /dev/null
+++ b/sound/soc/amd/renoir/rn_acp3x.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD ALSA SoC PDM Driver
+ *
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ */
+
+#include "rn_chip_offset_byte.h"
+
+#define ACP_DEVS		3
+#define ACP_PHY_BASE_ADDRESS 0x1240000
+#define	ACP_REG_START	0x1240000
+#define	ACP_REG_END	0x1250200
+
+#define ACP_DEVICE_ID 0x15E2
+#define ACP_POWER_ON 0x00
+#define ACP_POWER_ON_IN_PROGRESS 0x01
+#define ACP_POWER_OFF 0x02
+#define ACP_POWER_OFF_IN_PROGRESS 0x03
+#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK	0x00010001
+
+#define ACP_PGFSM_CNTL_POWER_ON_MASK    0x01
+#define ACP_PGFSM_CNTL_POWER_OFF_MASK   0x00
+#define ACP_PGFSM_STATUS_MASK           0x03
+#define ACP_POWERED_ON                  0x00
+#define ACP_POWER_ON_IN_PROGRESS        0x01
+#define ACP_POWERED_OFF                 0x02
+#define ACP_POWER_OFF_IN_PROGRESS       0x03
+
+#define ACP_ERROR_MASK 0x20000000
+#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
+#define PDM_DMA_STAT 0x10
+#define PDM_DMA_INTR_MASK  0x10000
+#define ACP_ERROR_STAT 29
+#define PDM_DECIMATION_FACTOR 0x2
+#define ACP_PDM_CLK_FREQ_MASK 0x07
+#define ACP_WOV_MISC_CTRL_MASK 0x10
+#define ACP_PDM_ENABLE 0x01
+#define ACP_PDM_DISABLE 0x00
+#define ACP_PDM_DMA_EN_STATUS 0x02
+#define TWO_CH 0x02
+#define DELAY_US 5
+#define ACP_COUNTER 20000
+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS	2000
+
+#define ACP_SRAM_PTE_OFFSET	0x02050000
+#define PAGE_SIZE_4K_ENABLE     0x2
+#define MEM_WINDOW_START	0x4000000
+
+#define CAPTURE_MIN_NUM_PERIODS     4
+#define CAPTURE_MAX_NUM_PERIODS     4
+#define CAPTURE_MAX_PERIOD_SIZE     8192
+#define CAPTURE_MIN_PERIOD_SIZE     4096
+
+#define MAX_BUFFER (CAPTURE_MAX_PERIOD_SIZE * CAPTURE_MAX_NUM_PERIODS)
+#define MIN_BUFFER MAX_BUFFER
+struct pdm_dev_data {
+	u32 pdm_irq;
+	void __iomem *acp_base;
+	struct snd_pcm_substream *capture_stream;
+};
+
+struct pdm_stream_instance {
+	u16 num_pages;
+	u16 channels;
+	dma_addr_t dma_addr;
+	u64 bytescount;
+	void __iomem *acp_base;
+};
+
+union acp_pdm_dma_count {
+	struct {
+	u32 low;
+	u32 high;
+	} bcount;
+	u64 bytescount;
+};
+
+static inline u32 rn_readl(void __iomem *base_addr)
+{
+	return readl(base_addr - ACP_PHY_BASE_ADDRESS);
+}
+
+static inline void rn_writel(u32 val, void __iomem *base_addr)
+{
+	writel(val, base_addr - ACP_PHY_BASE_ADDRESS);
+}