1 #ifndef __CPM_H 2 #define __CPM_H 3 4 #include <linux/compiler.h> 5 #include <linux/genalloc.h> 6 #include <linux/types.h> 7 #include <linux/errno.h> 8 #include <linux/of.h> 9 10 /* 11 * SPI Parameter RAM common to QE and CPM. 12 */ 13 struct spi_pram { 14 __be16 rbase; /* Rx Buffer descriptor base address */ 15 __be16 tbase; /* Tx Buffer descriptor base address */ 16 u8 rfcr; /* Rx function code */ 17 u8 tfcr; /* Tx function code */ 18 __be16 mrblr; /* Max receive buffer length */ 19 __be32 rstate; /* Internal */ 20 __be32 rdp; /* Internal */ 21 __be16 rbptr; /* Internal */ 22 __be16 rbc; /* Internal */ 23 __be32 rxtmp; /* Internal */ 24 __be32 tstate; /* Internal */ 25 __be32 tdp; /* Internal */ 26 __be16 tbptr; /* Internal */ 27 __be16 tbc; /* Internal */ 28 __be32 txtmp; /* Internal */ 29 __be32 res; /* Tx temp. */ 30 __be16 rpbase; /* Relocation pointer (CPM1 only) */ 31 __be16 res1; /* Reserved */ 32 }; 33 34 /* 35 * USB Controller pram common to QE and CPM. 36 */ 37 struct usb_ctlr { 38 u8 usb_usmod; 39 u8 usb_usadr; 40 u8 usb_uscom; 41 u8 res1[1]; 42 __be16 usb_usep[4]; 43 u8 res2[4]; 44 __be16 usb_usber; 45 u8 res3[2]; 46 __be16 usb_usbmr; 47 u8 res4[1]; 48 u8 usb_usbs; 49 /* Fields down below are QE-only */ 50 __be16 usb_ussft; 51 u8 res5[2]; 52 __be16 usb_usfrn; 53 u8 res6[0x22]; 54 } __attribute__ ((packed)); 55 56 /* 57 * Function code bits, usually generic to devices. 58 */ 59 #ifdef CONFIG_CPM1 60 #define CPMFCR_GBL ((u_char)0x00) /* Flag doesn't exist in CPM1 */ 61 #define CPMFCR_TC2 ((u_char)0x00) /* Flag doesn't exist in CPM1 */ 62 #define CPMFCR_DTB ((u_char)0x00) /* Flag doesn't exist in CPM1 */ 63 #define CPMFCR_BDB ((u_char)0x00) /* Flag doesn't exist in CPM1 */ 64 #else 65 #define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */ 66 #define CPMFCR_TC2 ((u_char)0x04) /* Transfer code 2 value */ 67 #define CPMFCR_DTB ((u_char)0x02) /* Use local bus for data when set */ 68 #define CPMFCR_BDB ((u_char)0x01) /* Use local bus for BD when set */ 69 #endif 70 #define CPMFCR_EB ((u_char)0x10) /* Set big endian byte order */ 71 72 /* Opcodes common to CPM1 and CPM2 73 */ 74 #define CPM_CR_INIT_TRX ((ushort)0x0000) 75 #define CPM_CR_INIT_RX ((ushort)0x0001) 76 #define CPM_CR_INIT_TX ((ushort)0x0002) 77 #define CPM_CR_HUNT_MODE ((ushort)0x0003) 78 #define CPM_CR_STOP_TX ((ushort)0x0004) 79 #define CPM_CR_GRA_STOP_TX ((ushort)0x0005) 80 #define CPM_CR_RESTART_TX ((ushort)0x0006) 81 #define CPM_CR_CLOSE_RX_BD ((ushort)0x0007) 82 #define CPM_CR_SET_GADDR ((ushort)0x0008) 83 #define CPM_CR_SET_TIMER ((ushort)0x0008) 84 #define CPM_CR_STOP_IDMA ((ushort)0x000b) 85 86 /* Buffer descriptors used by many of the CPM protocols. */ 87 typedef struct cpm_buf_desc { 88 ushort cbd_sc; /* Status and Control */ 89 ushort cbd_datlen; /* Data length in buffer */ 90 uint cbd_bufaddr; /* Buffer address in host memory */ 91 } cbd_t; 92 93 /* Buffer descriptor control/status used by serial 94 */ 95 96 #define BD_SC_EMPTY (0x8000) /* Receive is empty */ 97 #define BD_SC_READY (0x8000) /* Transmit is ready */ 98 #define BD_SC_WRAP (0x2000) /* Last buffer descriptor */ 99 #define BD_SC_INTRPT (0x1000) /* Interrupt on change */ 100 #define BD_SC_LAST (0x0800) /* Last buffer in frame */ 101 #define BD_SC_TC (0x0400) /* Transmit CRC */ 102 #define BD_SC_CM (0x0200) /* Continuous mode */ 103 #define BD_SC_ID (0x0100) /* Rec'd too many idles */ 104 #define BD_SC_P (0x0100) /* xmt preamble */ 105 #define BD_SC_BR (0x0020) /* Break received */ 106 #define BD_SC_FR (0x0010) /* Framing error */ 107 #define BD_SC_PR (0x0008) /* Parity error */ 108 #define BD_SC_NAK (0x0004) /* NAK - did not respond */ 109 #define BD_SC_OV (0x0002) /* Overrun */ 110 #define BD_SC_UN (0x0002) /* Underrun */ 111 #define BD_SC_CD (0x0001) /* */ 112 #define BD_SC_CL (0x0001) /* Collision */ 113 114 /* Buffer descriptor control/status used by Ethernet receive. 115 * Common to SCC and FCC. 116 */ 117 #define BD_ENET_RX_EMPTY (0x8000) 118 #define BD_ENET_RX_WRAP (0x2000) 119 #define BD_ENET_RX_INTR (0x1000) 120 #define BD_ENET_RX_LAST (0x0800) 121 #define BD_ENET_RX_FIRST (0x0400) 122 #define BD_ENET_RX_MISS (0x0100) 123 #define BD_ENET_RX_BC (0x0080) /* FCC Only */ 124 #define BD_ENET_RX_MC (0x0040) /* FCC Only */ 125 #define BD_ENET_RX_LG (0x0020) 126 #define BD_ENET_RX_NO (0x0010) 127 #define BD_ENET_RX_SH (0x0008) 128 #define BD_ENET_RX_CR (0x0004) 129 #define BD_ENET_RX_OV (0x0002) 130 #define BD_ENET_RX_CL (0x0001) 131 #define BD_ENET_RX_STATS (0x01ff) /* All status bits */ 132 133 /* Buffer descriptor control/status used by Ethernet transmit. 134 * Common to SCC and FCC. 135 */ 136 #define BD_ENET_TX_READY (0x8000) 137 #define BD_ENET_TX_PAD (0x4000) 138 #define BD_ENET_TX_WRAP (0x2000) 139 #define BD_ENET_TX_INTR (0x1000) 140 #define BD_ENET_TX_LAST (0x0800) 141 #define BD_ENET_TX_TC (0x0400) 142 #define BD_ENET_TX_DEF (0x0200) 143 #define BD_ENET_TX_HB (0x0100) 144 #define BD_ENET_TX_LC (0x0080) 145 #define BD_ENET_TX_RL (0x0040) 146 #define BD_ENET_TX_RCMASK (0x003c) 147 #define BD_ENET_TX_UN (0x0002) 148 #define BD_ENET_TX_CSL (0x0001) 149 #define BD_ENET_TX_STATS (0x03ff) /* All status bits */ 150 151 /* Buffer descriptor control/status used by Transparent mode SCC. 152 */ 153 #define BD_SCC_TX_LAST (0x0800) 154 155 /* Buffer descriptor control/status used by I2C. 156 */ 157 #define BD_I2C_START (0x0400) 158 159 int cpm_muram_init(void); 160 161 #if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE) 162 unsigned long cpm_muram_alloc(unsigned long size, unsigned long align); 163 int cpm_muram_free(unsigned long offset); 164 unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size); 165 unsigned long cpm_muram_alloc_common(unsigned long size, genpool_algo_t algo, 166 void *data); 167 void __iomem *cpm_muram_addr(unsigned long offset); 168 unsigned long cpm_muram_offset(void __iomem *addr); 169 dma_addr_t cpm_muram_dma(void __iomem *addr); 170 #else 171 static inline unsigned long cpm_muram_alloc(unsigned long size, 172 unsigned long align) 173 { 174 return -ENOSYS; 175 } 176 177 static inline int cpm_muram_free(unsigned long offset) 178 { 179 return -ENOSYS; 180 } 181 182 static inline unsigned long cpm_muram_alloc_fixed(unsigned long offset, 183 unsigned long size) 184 { 185 return -ENOSYS; 186 } 187 188 static inline void __iomem *cpm_muram_addr(unsigned long offset) 189 { 190 return NULL; 191 } 192 193 static inline unsigned long cpm_muram_offset(void __iomem *addr) 194 { 195 return -ENOSYS; 196 } 197 198 static inline dma_addr_t cpm_muram_dma(void __iomem *addr) 199 { 200 return 0; 201 } 202 #endif /* defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE) */ 203 204 #ifdef CONFIG_CPM 205 int cpm_command(u32 command, u8 opcode); 206 #else 207 static inline int cpm_command(u32 command, u8 opcode) 208 { 209 return -ENOSYS; 210 } 211 #endif /* CONFIG_CPM */ 212 213 int cpm2_gpiochip_add32(struct device_node *np); 214 215 #endif 216