diff options
Diffstat (limited to 'arch/arm/plat-pxa')
-rw-r--r-- | arch/arm/plat-pxa/include/plat/ssp.h | 186 | ||||
-rw-r--r-- | arch/arm/plat-pxa/ssp.c | 2 |
2 files changed, 1 insertions, 187 deletions
diff --git a/arch/arm/plat-pxa/include/plat/ssp.h b/arch/arm/plat-pxa/include/plat/ssp.h deleted file mode 100644 index fe43150690ed..000000000000 --- a/arch/arm/plat-pxa/include/plat/ssp.h +++ /dev/null | |||
@@ -1,186 +0,0 @@ | |||
1 | /* | ||
2 | * ssp.h | ||
3 | * | ||
4 | * Copyright (C) 2003 Russell King, All Rights Reserved. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | * | ||
10 | * This driver supports the following PXA CPU/SSP ports:- | ||
11 | * | ||
12 | * PXA250 SSP | ||
13 | * PXA255 SSP, NSSP | ||
14 | * PXA26x SSP, NSSP, ASSP | ||
15 | * PXA27x SSP1, SSP2, SSP3 | ||
16 | * PXA3xx SSP1, SSP2, SSP3, SSP4 | ||
17 | */ | ||
18 | |||
19 | #ifndef __ASM_ARCH_SSP_H | ||
20 | #define __ASM_ARCH_SSP_H | ||
21 | |||
22 | #include <linux/list.h> | ||
23 | #include <linux/io.h> | ||
24 | |||
25 | /* | ||
26 | * SSP Serial Port Registers | ||
27 | * PXA250, PXA255, PXA26x and PXA27x SSP controllers are all slightly different. | ||
28 | * PXA255, PXA26x and PXA27x have extra ports, registers and bits. | ||
29 | */ | ||
30 | |||
31 | #define SSCR0 (0x00) /* SSP Control Register 0 */ | ||
32 | #define SSCR1 (0x04) /* SSP Control Register 1 */ | ||
33 | #define SSSR (0x08) /* SSP Status Register */ | ||
34 | #define SSITR (0x0C) /* SSP Interrupt Test Register */ | ||
35 | #define SSDR (0x10) /* SSP Data Write/Data Read Register */ | ||
36 | |||
37 | #define SSTO (0x28) /* SSP Time Out Register */ | ||
38 | #define SSPSP (0x2C) /* SSP Programmable Serial Protocol */ | ||
39 | #define SSTSA (0x30) /* SSP Tx Timeslot Active */ | ||
40 | #define SSRSA (0x34) /* SSP Rx Timeslot Active */ | ||
41 | #define SSTSS (0x38) /* SSP Timeslot Status */ | ||
42 | #define SSACD (0x3C) /* SSP Audio Clock Divider */ | ||
43 | #define SSACDD (0x40) /* SSP Audio Clock Dither Divider */ | ||
44 | |||
45 | /* Common PXA2xx bits first */ | ||
46 | #define SSCR0_DSS (0x0000000f) /* Data Size Select (mask) */ | ||
47 | #define SSCR0_DataSize(x) ((x) - 1) /* Data Size Select [4..16] */ | ||
48 | #define SSCR0_FRF (0x00000030) /* FRame Format (mask) */ | ||
49 | #define SSCR0_Motorola (0x0 << 4) /* Motorola's Serial Peripheral Interface (SPI) */ | ||
50 | #define SSCR0_TI (0x1 << 4) /* Texas Instruments' Synchronous Serial Protocol (SSP) */ | ||
51 | #define SSCR0_National (0x2 << 4) /* National Microwire */ | ||
52 | #define SSCR0_ECS (1 << 6) /* External clock select */ | ||
53 | #define SSCR0_SSE (1 << 7) /* Synchronous Serial Port Enable */ | ||
54 | #define SSCR0_SCR(x) ((x) << 8) /* Serial Clock Rate (mask) */ | ||
55 | |||
56 | /* PXA27x, PXA3xx */ | ||
57 | #define SSCR0_EDSS (1 << 20) /* Extended data size select */ | ||
58 | #define SSCR0_NCS (1 << 21) /* Network clock select */ | ||
59 | #define SSCR0_RIM (1 << 22) /* Receive FIFO overrrun interrupt mask */ | ||
60 | #define SSCR0_TUM (1 << 23) /* Transmit FIFO underrun interrupt mask */ | ||
61 | #define SSCR0_FRDC (0x07000000) /* Frame rate divider control (mask) */ | ||
62 | #define SSCR0_SlotsPerFrm(x) (((x) - 1) << 24) /* Time slots per frame [1..8] */ | ||
63 | #define SSCR0_FPCKE (1 << 29) /* FIFO packing enable */ | ||
64 | #define SSCR0_ACS (1 << 30) /* Audio clock select */ | ||
65 | #define SSCR0_MOD (1 << 31) /* Mode (normal or network) */ | ||
66 | |||
67 | |||
68 | #define SSCR1_RIE (1 << 0) /* Receive FIFO Interrupt Enable */ | ||
69 | #define SSCR1_TIE (1 << 1) /* Transmit FIFO Interrupt Enable */ | ||
70 | #define SSCR1_LBM (1 << 2) /* Loop-Back Mode */ | ||
71 | #define SSCR1_SPO (1 << 3) /* Motorola SPI SSPSCLK polarity setting */ | ||
72 | #define SSCR1_SPH (1 << 4) /* Motorola SPI SSPSCLK phase setting */ | ||
73 | #define SSCR1_MWDS (1 << 5) /* Microwire Transmit Data Size */ | ||
74 | #define SSCR1_TFT (0x000003c0) /* Transmit FIFO Threshold (mask) */ | ||
75 | #define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..16] */ | ||
76 | #define SSCR1_RFT (0x00003c00) /* Receive FIFO Threshold (mask) */ | ||
77 | #define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */ | ||
78 | |||
79 | #define SSSR_TNF (1 << 2) /* Transmit FIFO Not Full */ | ||
80 | #define SSSR_RNE (1 << 3) /* Receive FIFO Not Empty */ | ||
81 | #define SSSR_BSY (1 << 4) /* SSP Busy */ | ||
82 | #define SSSR_TFS (1 << 5) /* Transmit FIFO Service Request */ | ||
83 | #define SSSR_RFS (1 << 6) /* Receive FIFO Service Request */ | ||
84 | #define SSSR_ROR (1 << 7) /* Receive FIFO Overrun */ | ||
85 | |||
86 | |||
87 | /* extra bits in PXA255, PXA26x and PXA27x SSP ports */ | ||
88 | #define SSCR0_TISSP (1 << 4) /* TI Sync Serial Protocol */ | ||
89 | #define SSCR0_PSP (3 << 4) /* PSP - Programmable Serial Protocol */ | ||
90 | #define SSCR1_TTELP (1 << 31) /* TXD Tristate Enable Last Phase */ | ||
91 | #define SSCR1_TTE (1 << 30) /* TXD Tristate Enable */ | ||
92 | #define SSCR1_EBCEI (1 << 29) /* Enable Bit Count Error interrupt */ | ||
93 | #define SSCR1_SCFR (1 << 28) /* Slave Clock free Running */ | ||
94 | #define SSCR1_ECRA (1 << 27) /* Enable Clock Request A */ | ||
95 | #define SSCR1_ECRB (1 << 26) /* Enable Clock request B */ | ||
96 | #define SSCR1_SCLKDIR (1 << 25) /* Serial Bit Rate Clock Direction */ | ||
97 | #define SSCR1_SFRMDIR (1 << 24) /* Frame Direction */ | ||
98 | #define SSCR1_RWOT (1 << 23) /* Receive Without Transmit */ | ||
99 | #define SSCR1_TRAIL (1 << 22) /* Trailing Byte */ | ||
100 | #define SSCR1_TSRE (1 << 21) /* Transmit Service Request Enable */ | ||
101 | #define SSCR1_RSRE (1 << 20) /* Receive Service Request Enable */ | ||
102 | #define SSCR1_TINTE (1 << 19) /* Receiver Time-out Interrupt enable */ | ||
103 | #define SSCR1_PINTE (1 << 18) /* Peripheral Trailing Byte Interupt Enable */ | ||
104 | #define SSCR1_IFS (1 << 16) /* Invert Frame Signal */ | ||
105 | #define SSCR1_STRF (1 << 15) /* Select FIFO or EFWR */ | ||
106 | #define SSCR1_EFWR (1 << 14) /* Enable FIFO Write/Read */ | ||
107 | |||
108 | #define SSSR_BCE (1 << 23) /* Bit Count Error */ | ||
109 | #define SSSR_CSS (1 << 22) /* Clock Synchronisation Status */ | ||
110 | #define SSSR_TUR (1 << 21) /* Transmit FIFO Under Run */ | ||
111 | #define SSSR_EOC (1 << 20) /* End Of Chain */ | ||
112 | #define SSSR_TINT (1 << 19) /* Receiver Time-out Interrupt */ | ||
113 | #define SSSR_PINT (1 << 18) /* Peripheral Trailing Byte Interrupt */ | ||
114 | |||
115 | |||
116 | #define SSPSP_SCMODE(x) ((x) << 0) /* Serial Bit Rate Clock Mode */ | ||
117 | #define SSPSP_SFRMP (1 << 2) /* Serial Frame Polarity */ | ||
118 | #define SSPSP_ETDS (1 << 3) /* End of Transfer data State */ | ||
119 | #define SSPSP_STRTDLY(x) ((x) << 4) /* Start Delay */ | ||
120 | #define SSPSP_DMYSTRT(x) ((x) << 7) /* Dummy Start */ | ||
121 | #define SSPSP_SFRMDLY(x) ((x) << 9) /* Serial Frame Delay */ | ||
122 | #define SSPSP_SFRMWDTH(x) ((x) << 16) /* Serial Frame Width */ | ||
123 | #define SSPSP_DMYSTOP(x) ((x) << 23) /* Dummy Stop */ | ||
124 | #define SSPSP_FSRT (1 << 25) /* Frame Sync Relative Timing */ | ||
125 | |||
126 | /* PXA3xx */ | ||
127 | #define SSPSP_EDMYSTRT(x) ((x) << 26) /* Extended Dummy Start */ | ||
128 | #define SSPSP_EDMYSTOP(x) ((x) << 28) /* Extended Dummy Stop */ | ||
129 | #define SSPSP_TIMING_MASK (0x7f8001f0) | ||
130 | |||
131 | #define SSACD_SCDB (1 << 3) /* SSPSYSCLK Divider Bypass */ | ||
132 | #define SSACD_ACPS(x) ((x) << 4) /* Audio clock PLL select */ | ||
133 | #define SSACD_ACDS(x) ((x) << 0) /* Audio clock divider select */ | ||
134 | #define SSACD_SCDX8 (1 << 7) /* SYSCLK division ratio select */ | ||
135 | |||
136 | enum pxa_ssp_type { | ||
137 | SSP_UNDEFINED = 0, | ||
138 | PXA25x_SSP, /* pxa 210, 250, 255, 26x */ | ||
139 | PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */ | ||
140 | PXA27x_SSP, | ||
141 | PXA168_SSP, | ||
142 | }; | ||
143 | |||
144 | struct ssp_device { | ||
145 | struct platform_device *pdev; | ||
146 | struct list_head node; | ||
147 | |||
148 | struct clk *clk; | ||
149 | void __iomem *mmio_base; | ||
150 | unsigned long phys_base; | ||
151 | |||
152 | const char *label; | ||
153 | int port_id; | ||
154 | int type; | ||
155 | int use_count; | ||
156 | int irq; | ||
157 | int drcmr_rx; | ||
158 | int drcmr_tx; | ||
159 | }; | ||
160 | |||
161 | /** | ||
162 | * pxa_ssp_write_reg - Write to a SSP register | ||
163 | * | ||
164 | * @dev: SSP device to access | ||
165 | * @reg: Register to write to | ||
166 | * @val: Value to be written. | ||
167 | */ | ||
168 | static inline void pxa_ssp_write_reg(struct ssp_device *dev, u32 reg, u32 val) | ||
169 | { | ||
170 | __raw_writel(val, dev->mmio_base + reg); | ||
171 | } | ||
172 | |||
173 | /** | ||
174 | * pxa_ssp_read_reg - Read from a SSP register | ||
175 | * | ||
176 | * @dev: SSP device to access | ||
177 | * @reg: Register to read from | ||
178 | */ | ||
179 | static inline u32 pxa_ssp_read_reg(struct ssp_device *dev, u32 reg) | ||
180 | { | ||
181 | return __raw_readl(dev->mmio_base + reg); | ||
182 | } | ||
183 | |||
184 | struct ssp_device *pxa_ssp_request(int port, const char *label); | ||
185 | void pxa_ssp_free(struct ssp_device *); | ||
186 | #endif /* __ASM_ARCH_SSP_H */ | ||
diff --git a/arch/arm/plat-pxa/ssp.c b/arch/arm/plat-pxa/ssp.c index c6357e554aba..58b79809d20c 100644 --- a/arch/arm/plat-pxa/ssp.c +++ b/arch/arm/plat-pxa/ssp.c | |||
@@ -28,11 +28,11 @@ | |||
28 | #include <linux/clk.h> | 28 | #include <linux/clk.h> |
29 | #include <linux/err.h> | 29 | #include <linux/err.h> |
30 | #include <linux/platform_device.h> | 30 | #include <linux/platform_device.h> |
31 | #include <linux/spi/pxa2xx_spi.h> | ||
31 | #include <linux/io.h> | 32 | #include <linux/io.h> |
32 | 33 | ||
33 | #include <asm/irq.h> | 34 | #include <asm/irq.h> |
34 | #include <mach/hardware.h> | 35 | #include <mach/hardware.h> |
35 | #include <plat/ssp.h> | ||
36 | 36 | ||
37 | static DEFINE_MUTEX(ssp_lock); | 37 | static DEFINE_MUTEX(ssp_lock); |
38 | static LIST_HEAD(ssp_list); | 38 | static LIST_HEAD(ssp_list); |