diff options
author | Ronald G. Minnich <rminnich@gmail.com> | 2012-11-27 10:48:56 -0800 |
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committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-11-28 07:56:20 +0100 |
commit | acf443191bd035c26ee89c3ca56f065a5111901b (patch) | |
tree | af6c0a62a31610478d3c20fdfa0ce4e9e426ad86 /src/cpu/samsung/exynos5-common/spi.h | |
parent | 6e3728bb12688e8de300c04d5e7a688bc99a2d15 (diff) |
add .h files for common exynos 5
Change-Id: I48497adc29a1b8ca11d1e0a5d879cab5b6b55dcd
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/1926
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/cpu/samsung/exynos5-common/spi.h')
-rw-r--r-- | src/cpu/samsung/exynos5-common/spi.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5-common/spi.h b/src/cpu/samsung/exynos5-common/spi.h new file mode 100644 index 0000000000..3430ac1ab2 --- /dev/null +++ b/src/cpu/samsung/exynos5-common/spi.h @@ -0,0 +1,89 @@ +/* + * (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 int swap_cfg; /* 0x28 */ + unsigned int fb_clk; /* 0x2c */ + unsigned char padding[0xffd0]; +}; + +#define EXYNOS_SPI_MAX_FREQ 50000000 + +#define SPI_TIMEOUT_MS 10 + +#define SF_READ_DATA_CMD 0x3 + +/* 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) + +/* Swap config */ +#define SPI_TX_SWAP_EN (1 << 0) +#define SPI_TX_BYTE_SWAP (1 << 2) +#define SPI_TX_HWORD_SWAP (1 << 3) +#define SPI_TX_BYTE_SWAP (1 << 2) +#define SPI_RX_SWAP_EN (1 << 4) +#define SPI_RX_BYTE_SWAP (1 << 6) +#define SPI_RX_HWORD_SWAP (1 << 7) + +#endif /* __ASSEMBLY__ */ +#endif |