aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/s3c64xx-spi.h')
-rw-r--r--arch/arm/plat-samsung/include/plat/s3c64xx-spi.h39
1 files changed, 11 insertions, 28 deletions
diff --git a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
index fa95e9a00972..ceba18d23a5a 100644
--- a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
+++ b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
@@ -18,7 +18,6 @@ struct platform_device;
18 * @fb_delay: Slave specific feedback delay. 18 * @fb_delay: Slave specific feedback delay.
19 * Refer to FB_CLK_SEL register definition in SPI chapter. 19 * Refer to FB_CLK_SEL register definition in SPI chapter.
20 * @line: Custom 'identity' of the CS line. 20 * @line: Custom 'identity' of the CS line.
21 * @set_level: CS line control.
22 * 21 *
23 * This is per SPI-Slave Chipselect information. 22 * This is per SPI-Slave Chipselect information.
24 * Allocate and initialize one in machine init code and make the 23 * Allocate and initialize one in machine init code and make the
@@ -27,57 +26,41 @@ struct platform_device;
27struct s3c64xx_spi_csinfo { 26struct s3c64xx_spi_csinfo {
28 u8 fb_delay; 27 u8 fb_delay;
29 unsigned line; 28 unsigned line;
30 void (*set_level)(unsigned line_id, int lvl);
31}; 29};
32 30
33/** 31/**
34 * struct s3c64xx_spi_info - SPI Controller defining structure 32 * struct s3c64xx_spi_info - SPI Controller defining structure
35 * @src_clk_nr: Clock source index for the CLK_CFG[SPI_CLKSEL] field. 33 * @src_clk_nr: Clock source index for the CLK_CFG[SPI_CLKSEL] field.
36 * @clk_from_cmu: If the SPI clock/prescalar control block is present
37 * by the platform's clock-management-unit and not in SPI controller.
38 * @num_cs: Number of CS this controller emulates. 34 * @num_cs: Number of CS this controller emulates.
39 * @cfg_gpio: Configure pins for this SPI controller. 35 * @cfg_gpio: Configure pins for this SPI controller.
40 * @fifo_lvl_mask: All tx fifo_lvl fields start at offset-6
41 * @rx_lvl_offset: Depends on tx fifo_lvl field and bus number
42 * @high_speed: If the controller supports HIGH_SPEED_EN bit
43 * @tx_st_done: Depends on tx fifo_lvl field
44 */ 36 */
45struct s3c64xx_spi_info { 37struct s3c64xx_spi_info {
46 int src_clk_nr; 38 int src_clk_nr;
47 bool clk_from_cmu;
48
49 int num_cs; 39 int num_cs;
50 40 int (*cfg_gpio)(void);
51 int (*cfg_gpio)(struct platform_device *pdev);
52
53 /* Following two fields are for future compatibility */
54 int fifo_lvl_mask;
55 int rx_lvl_offset;
56 int high_speed;
57 int tx_st_done;
58}; 41};
59 42
60/** 43/**
61 * s3c64xx_spi_set_platdata - SPI Controller configure callback by the board 44 * s3c64xx_spi_set_platdata - SPI Controller configure callback by the board
62 * initialization code. 45 * initialization code.
63 * @pd: SPI platform data to set. 46 * @cfg_gpio: Pointer to gpio setup function.
64 * @src_clk_nr: Clock the SPI controller is to use to generate SPI clocks. 47 * @src_clk_nr: Clock the SPI controller is to use to generate SPI clocks.
65 * @num_cs: Number of elements in the 'cs' array. 48 * @num_cs: Number of elements in the 'cs' array.
66 * 49 *
67 * Call this from machine init code for each SPI Controller that 50 * Call this from machine init code for each SPI Controller that
68 * has some chips attached to it. 51 * has some chips attached to it.
69 */ 52 */
70extern void s3c64xx_spi0_set_platdata(struct s3c64xx_spi_info *pd, 53extern void s3c64xx_spi0_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
71 int src_clk_nr, int num_cs); 54 int num_cs);
72extern void s3c64xx_spi1_set_platdata(struct s3c64xx_spi_info *pd, 55extern void s3c64xx_spi1_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
73 int src_clk_nr, int num_cs); 56 int num_cs);
74extern void s3c64xx_spi2_set_platdata(struct s3c64xx_spi_info *pd, 57extern void s3c64xx_spi2_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
75 int src_clk_nr, int num_cs); 58 int num_cs);
76 59
77/* defined by architecture to configure gpio */ 60/* defined by architecture to configure gpio */
78extern int s3c64xx_spi0_cfg_gpio(struct platform_device *dev); 61extern int s3c64xx_spi0_cfg_gpio(void);
79extern int s3c64xx_spi1_cfg_gpio(struct platform_device *dev); 62extern int s3c64xx_spi1_cfg_gpio(void);
80extern int s3c64xx_spi2_cfg_gpio(struct platform_device *dev); 63extern int s3c64xx_spi2_cfg_gpio(void);
81 64
82extern struct s3c64xx_spi_info s3c64xx_spi0_pdata; 65extern struct s3c64xx_spi_info s3c64xx_spi0_pdata;
83extern struct s3c64xx_spi_info s3c64xx_spi1_pdata; 66extern struct s3c64xx_spi_info s3c64xx_spi1_pdata;