2 * (C) Copyright 2012 SAMSUNG Electronics
3 * Padmavathi Venna <padma.v@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
8 #ifndef __ASM_ARCH_EXYNOS_COMMON_SPI_H_
9 #define __ASM_ARCH_EXYNOS_COMMON_SPI_H_
13 /* SPI peripheral register map; padded to 64KB */
15 unsigned int ch_cfg; /* 0x00 */
16 unsigned char reserved0[4];
17 unsigned int mode_cfg; /* 0x08 */
18 unsigned int cs_reg; /* 0x0c */
19 unsigned char reserved1[4];
20 unsigned int spi_sts; /* 0x14 */
21 unsigned int tx_data; /* 0x18 */
22 unsigned int rx_data; /* 0x1c */
23 unsigned int pkt_cnt; /* 0x20 */
24 unsigned char reserved2[4];
25 unsigned int swap_cfg; /* 0x28 */
26 unsigned int fb_clk; /* 0x2c */
27 unsigned char padding[0xffd0];
30 #define EXYNOS_SPI_MAX_FREQ 50000000
32 #define SPI_TIMEOUT_MS 10
33 #define SF_READ_DATA_CMD 0x3
36 #define SPI_CH_HS_EN (1 << 6)
37 #define SPI_CH_RST (1 << 5)
38 #define SPI_SLAVE_MODE (1 << 4)
39 #define SPI_CH_CPOL_L (1 << 3)
40 #define SPI_CH_CPHA_B (1 << 2)
41 #define SPI_RX_CH_ON (1 << 1)
42 #define SPI_TX_CH_ON (1 << 0)
45 #define SPI_MODE_CH_WIDTH_WORD (0x2 << 29)
46 #define SPI_MODE_BUS_WIDTH_WORD (0x2 << 17)
49 #define SPI_SLAVE_SIG_INACT (1 << 0)
52 #define SPI_ST_TX_DONE (1 << 25)
53 #define SPI_FIFO_LVL_MASK 0x1ff
54 #define SPI_TX_LVL_OFFSET 6
55 #define SPI_RX_LVL_OFFSET 15
58 #define SPI_CLK_BYPASS (0 << 0)
59 #define SPI_FB_DELAY_90 (1 << 0)
60 #define SPI_FB_DELAY_180 (2 << 0)
61 #define SPI_FB_DELAY_270 (3 << 0)
64 #define SPI_PACKET_CNT_EN (1 << 16)
67 #define SPI_TX_SWAP_EN (1 << 0)
68 #define SPI_TX_BYTE_SWAP (1 << 2)
69 #define SPI_TX_HWORD_SWAP (1 << 3)
70 #define SPI_TX_BYTE_SWAP (1 << 2)
71 #define SPI_RX_SWAP_EN (1 << 4)
72 #define SPI_RX_BYTE_SWAP (1 << 6)
73 #define SPI_RX_HWORD_SWAP (1 << 7)
75 #endif /* __ASSEMBLY__ */