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- /*
- * (C) Copyright 2012 SAMSUNG Electronics
- * Padmavathi Venna <padma.v@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #ifndef __ASM_ARCH_EXYNOS_COMMON_SPI_H_
- #define __ASM_ARCH_EXYNOS_COMMON_SPI_H_
- #ifndef __ASSEMBLY__
- /* SPI peripheral register map; padded to 64KB */
- struct exynos_spi {
- unsigned int ch_cfg; /* 0x00 */
- unsigned char reserved0[4];
- unsigned int mode_cfg; /* 0x08 */
- unsigned int cs_reg; /* 0x0c */
- unsigned char reserved1[4];
- unsigned int spi_sts; /* 0x14 */
- unsigned int tx_data; /* 0x18 */
- unsigned int rx_data; /* 0x1c */
- unsigned int pkt_cnt; /* 0x20 */
- unsigned char reserved2[4];
- unsigned char reserved3[4];
- unsigned int fb_clk; /* 0x2c */
- unsigned char padding[0xffd0];
- };
- #define EXYNOS_SPI_MAX_FREQ 50000000
- #define SPI_TIMEOUT_MS 10
- /* SPI_CHCFG */
- #define SPI_CH_HS_EN (1 << 6)
- #define SPI_CH_RST (1 << 5)
- #define SPI_SLAVE_MODE (1 << 4)
- #define SPI_CH_CPOL_L (1 << 3)
- #define SPI_CH_CPHA_B (1 << 2)
- #define SPI_RX_CH_ON (1 << 1)
- #define SPI_TX_CH_ON (1 << 0)
- /* SPI_MODECFG */
- #define SPI_MODE_CH_WIDTH_WORD (0x2 << 29)
- #define SPI_MODE_BUS_WIDTH_WORD (0x2 << 17)
- /* SPI_CSREG */
- #define SPI_SLAVE_SIG_INACT (1 << 0)
- /* SPI_STS */
- #define SPI_ST_TX_DONE (1 << 25)
- #define SPI_FIFO_LVL_MASK 0x1ff
- #define SPI_TX_LVL_OFFSET 6
- #define SPI_RX_LVL_OFFSET 15
- /* Feedback Delay */
- #define SPI_CLK_BYPASS (0 << 0)
- #define SPI_FB_DELAY_90 (1 << 0)
- #define SPI_FB_DELAY_180 (2 << 0)
- #define SPI_FB_DELAY_270 (3 << 0)
- /* Packet Count */
- #define SPI_PACKET_CNT_EN (1 << 16)
- #endif /* __ASSEMBLY__ */
- #endif
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