| 85 | | if (!spi_rdid(readarr)) { |
| 86 | | if (!oddparity(readarr[0])) |
| 87 | | printf_debug("RDID byte 0 parity violation.\n"); |
| 88 | | /* Check if this is a continuation vendor ID */ |
| 89 | | if (readarr[0] == 0x7f) { |
| 90 | | if (!oddparity(readarr[1])) |
| 91 | | printf_debug("RDID byte 1 parity violation.\n"); |
| 92 | | manuf_id = (readarr[0] << 8) | readarr[1]; |
| 93 | | model_id = readarr[2]; |
| 94 | | } else { |
| 95 | | manuf_id = readarr[0]; |
| 96 | | model_id = (readarr[1] << 8) | readarr[2]; |
| 97 | | } |
| 98 | | printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, manuf_id, model_id); |
| 99 | | if (manuf_id == flash->manufacture_id && |
| 100 | | model_id == flash->model_id) { |
| 101 | | /* Print the status register to tell the |
| 102 | | * user about possible write protection. |
| 103 | | */ |
| 104 | | spi_prettyprint_status_register(flash); |
| 105 | | |
| 106 | | return 1; |
| 107 | | } |
| 108 | | /* Test if this is a pure vendor match. */ |
| 109 | | if (manuf_id == flash->manufacture_id && |
| 110 | | GENERIC_DEVICE_ID == flash->model_id) |
| 111 | | return 1; |
| 112 | | } |
| | 85 | |
| | 86 | if (spi_rdid(readarr)) |
| | 87 | return 0; |
| | 88 | |
| | 89 | if (!oddparity(readarr[0])) |
| | 90 | printf_debug("RDID byte 0 parity violation.\n"); |
| | 91 | |
| | 92 | /* Check if this is a continuation vendor ID */ |
| | 93 | if (readarr[0] == 0x7f) { |
| | 94 | if (!oddparity(readarr[1])) |
| | 95 | printf_debug("RDID byte 1 parity violation.\n"); |
| | 96 | manuf_id = (readarr[0] << 8) | readarr[1]; |
| | 97 | model_id = readarr[2]; |
| | 98 | } else { |
| | 99 | manuf_id = readarr[0]; |
| | 100 | model_id = (readarr[1] << 8) | readarr[2]; |
| | 101 | } |
| | 102 | |
| | 103 | printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, manuf_id, model_id); |
| | 104 | |
| | 105 | if (manuf_id == flash->manufacture_id && |
| | 106 | model_id == flash->model_id) { |
| | 107 | /* Print the status register to tell the |
| | 108 | * user about possible write protection. |
| | 109 | */ |
| | 110 | spi_prettyprint_status_register(flash); |
| | 111 | |
| | 112 | return 1; |
| | 113 | } |
| | 114 | |
| | 115 | /* Test if this is a pure vendor match. */ |
| | 116 | if (manuf_id == flash->manufacture_id && |
| | 117 | GENERIC_DEVICE_ID == flash->model_id) |
| | 118 | return 1; |
| 129 | | } |
| 130 | | if (!spi_res(readarr)) { |
| 131 | | model_id = readarr[0]; |
| 132 | | printf_debug("%s: id 0x%x\n", __FUNCTION__, model_id); |
| 133 | | if (model_id == flash->model_id) { |
| 134 | | /* Print the status register to tell the |
| 135 | | * user about possible write protection. |
| 136 | | */ |
| 137 | | spi_prettyprint_status_register(flash); |
| 138 | | |
| 139 | | return 1; |
| 140 | | } |
| 141 | | } |
| 142 | | |
| 143 | | return 0; |
| | 131 | |
| | 132 | /* Check if RDID returns 0xff 0xff 0xff, then we use RES. */ |
| | 133 | if ((readarr[0] != 0xff) || (readarr[1] != 0xff) || |
| | 134 | (readarr[2] != 0xff)) |
| | 135 | return 0; |
| | 136 | |
| | 137 | if (spi_res(readarr)) |
| | 138 | return 0; |
| | 139 | |
| | 140 | model_id = readarr[0]; |
| | 141 | printf_debug("%s: id 0x%x\n", __FUNCTION__, model_id); |
| | 142 | if (model_id != flash->model_id) |
| | 143 | return 0; |
| | 144 | |
| | 145 | /* Print the status register to tell the |
| | 146 | * user about possible write protection. |
| | 147 | */ |
| | 148 | spi_prettyprint_status_register(flash); |
| | 149 | return 1; |