X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fqe%2Fqe.c;h=c4ec2f4af89e95c4b948bc50ae5155f00f0fc23c;hb=553f09823cced77296825f615f00321d932bf914;hp=0f5232a72afe4d394e1526276873adcb2a9891a5;hpb=93f798346033a1f6d22090b47abad4be88243b04;p=u-boot diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c index 0f5232a72a..c4ec2f4af8 100644 --- a/drivers/qe/qe.c +++ b/drivers/qe/qe.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2006 Freescale Semiconductor, Inc. + * Copyright (C) 2006-2009 Freescale Semiconductor, Inc. * * Dave Liu * based on source code of Shlomi Gridish @@ -21,18 +21,20 @@ */ #include "common.h" +#include #include "asm/errno.h" #include "asm/io.h" #include "asm/immap_qe.h" #include "qe.h" -#if defined(CONFIG_QE) qe_map_t *qe_immr = NULL; static qe_snum_t snums[QE_NUM_OF_SNUM]; +DECLARE_GLOBAL_DATA_PTR; + void qe_issue_cmd(uint cmd, uint sbc, u8 mcn, u32 cmd_data) { - u32 cecr; + u32 cecr; if (cmd == QE_RESET) { out_be32(&qe_immr->cp.cecr,(u32) (cmd | QE_CR_FLG)); @@ -51,8 +53,6 @@ void qe_issue_cmd(uint cmd, uint sbc, u8 mcn, u32 cmd_data) uint qe_muram_alloc(uint size, uint align) { - DECLARE_GLOBAL_DATA_PTR; - uint retloc; uint align_mask, off; uint savebase; @@ -108,14 +108,23 @@ static void qe_sdma_init(void) out_be32(&p->sdmr, QE_SDMR_GLB_1_MSK | (0x3 << QE_SDMR_CEN_SHIFT)); } -static u8 thread_snum[QE_NUM_OF_SNUM] = { +/* This table is a list of the serial numbers of the Threads, taken from the + * "SNUM Table" chart in the QE Reference Manual. The order is not important, + * we just need to know what the SNUMs are for the threads. + */ +static u8 thread_snum[] = { 0x04, 0x05, 0x0c, 0x0d, 0x14, 0x15, 0x1c, 0x1d, 0x24, 0x25, 0x2c, 0x2d, 0x34, 0x35, 0x88, 0x89, 0x98, 0x99, 0xa8, 0xa9, 0xb8, 0xb9, 0xc8, 0xc9, - 0xd8, 0xd9, 0xe8, 0xe9 + 0xd8, 0xd9, 0xe8, 0xe9, + 0x08, 0x09, 0x18, 0x19, + 0x28, 0x29, 0x38, 0x39, + 0x48, 0x49, 0x58, 0x59, + 0x68, 0x69, 0x78, 0x79, + 0x80, 0x81 }; static void qe_snums_init(void) @@ -158,11 +167,19 @@ void qe_put_snum(u8 snum) void qe_init(uint qe_base) { - DECLARE_GLOBAL_DATA_PTR; - /* Init the QE IMMR base */ qe_immr = (qe_map_t *)qe_base; +#ifdef CONFIG_SYS_QE_FW_ADDR + /* + * Upload microcode to IRAM for those SOCs which do not have ROM in QE. + */ + qe_upload_firmware((const struct qe_firmware *) CONFIG_SYS_QE_FW_ADDR); + + /* enable the microcode in IRAM */ + out_be32(&qe_immr->iram.iready,QE_IRAM_READY); +#endif + gd->mp_alloc_base = QE_DATAONLY_BASE; gd->mp_alloc_top = gd->mp_alloc_base + QE_DATAONLY_SIZE; @@ -204,7 +221,6 @@ void qe_assign_page(uint snum, uint para_ram_base) int qe_set_brg(uint brg, uint rate) { - DECLARE_GLOBAL_DATA_PTR; volatile uint *bp; u32 divisor; int div16 = 0; @@ -251,4 +267,215 @@ int qe_set_mii_clk_src(int ucc_num) return 0; } -#endif /* CONFIG_QE */ +/* Firmware information stored here for qe_get_firmware_info() */ +static struct qe_firmware_info qe_firmware_info; + +/* + * Set to 1 if QE firmware has been uploaded, and therefore + * qe_firmware_info contains valid data. + */ +static int qe_firmware_uploaded; + +/* + * Upload a QE microcode + * + * This function is a worker function for qe_upload_firmware(). It does + * the actual uploading of the microcode. + */ +static void qe_upload_microcode(const void *base, + const struct qe_microcode *ucode) +{ + const u32 *code = base + be32_to_cpu(ucode->code_offset); + unsigned int i; + + if (ucode->major || ucode->minor || ucode->revision) + printf("QE: uploading microcode '%s' version %u.%u.%u\n", + ucode->id, ucode->major, ucode->minor, ucode->revision); + else + printf("QE: uploading microcode '%s'\n", ucode->id); + + /* Use auto-increment */ + out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) | + QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR); + + for (i = 0; i < be32_to_cpu(ucode->count); i++) + out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i])); +} + +/* + * Upload a microcode to the I-RAM at a specific address. + * + * See docs/README.qe_firmware for information on QE microcode uploading. + * + * Currently, only version 1 is supported, so the 'version' field must be + * set to 1. + * + * The SOC model and revision are not validated, they are only displayed for + * informational purposes. + * + * 'calc_size' is the calculated size, in bytes, of the firmware structure and + * all of the microcode structures, minus the CRC. + * + * 'length' is the size that the structure says it is, including the CRC. + */ +int qe_upload_firmware(const struct qe_firmware *firmware) +{ + unsigned int i; + unsigned int j; + u32 crc; + size_t calc_size = sizeof(struct qe_firmware); + size_t length; + const struct qe_header *hdr; + + if (!firmware) { + printf("Invalid address\n"); + return -EINVAL; + } + + hdr = &firmware->header; + length = be32_to_cpu(hdr->length); + + /* Check the magic */ + if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') || + (hdr->magic[2] != 'F')) { + printf("Not a microcode\n"); + return -EPERM; + } + + /* Check the version */ + if (hdr->version != 1) { + printf("Unsupported version\n"); + return -EPERM; + } + + /* Validate some of the fields */ + if ((firmware->count < 1) || (firmware->count > MAX_QE_RISC)) { + printf("Invalid data\n"); + return -EINVAL; + } + + /* Validate the length and check if there's a CRC */ + calc_size += (firmware->count - 1) * sizeof(struct qe_microcode); + + for (i = 0; i < firmware->count; i++) + /* + * For situations where the second RISC uses the same microcode + * as the first, the 'code_offset' and 'count' fields will be + * zero, so it's okay to add those. + */ + calc_size += sizeof(u32) * + be32_to_cpu(firmware->microcode[i].count); + + /* Validate the length */ + if (length != calc_size + sizeof(u32)) { + printf("Invalid length\n"); + return -EPERM; + } + + /* + * Validate the CRC. We would normally call crc32_no_comp(), but that + * function isn't available unless you turn on JFFS support. + */ + crc = be32_to_cpu(*(u32 *)((void *)firmware + calc_size)); + if (crc != (crc32(-1, (const void *) firmware, calc_size) ^ -1)) { + printf("Firmware CRC is invalid\n"); + return -EIO; + } + + /* + * If the microcode calls for it, split the I-RAM. + */ + if (!firmware->split) { + out_be16(&qe_immr->cp.cercr, + in_be16(&qe_immr->cp.cercr) | QE_CP_CERCR_CIR); + } + + if (firmware->soc.model) + printf("Firmware '%s' for %u V%u.%u\n", + firmware->id, be16_to_cpu(firmware->soc.model), + firmware->soc.major, firmware->soc.minor); + else + printf("Firmware '%s'\n", firmware->id); + + /* + * The QE only supports one microcode per RISC, so clear out all the + * saved microcode information and put in the new. + */ + memset(&qe_firmware_info, 0, sizeof(qe_firmware_info)); + strcpy(qe_firmware_info.id, (char *)firmware->id); + qe_firmware_info.extended_modes = firmware->extended_modes; + memcpy(qe_firmware_info.vtraps, firmware->vtraps, + sizeof(firmware->vtraps)); + qe_firmware_uploaded = 1; + + /* Loop through each microcode. */ + for (i = 0; i < firmware->count; i++) { + const struct qe_microcode *ucode = &firmware->microcode[i]; + + /* Upload a microcode if it's present */ + if (ucode->code_offset) + qe_upload_microcode(firmware, ucode); + + /* Program the traps for this processor */ + for (j = 0; j < 16; j++) { + u32 trap = be32_to_cpu(ucode->traps[j]); + + if (trap) + out_be32(&qe_immr->rsp[i].tibcr[j], trap); + } + + /* Enable traps */ + out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr)); + } + + return 0; +} + +struct qe_firmware_info *qe_get_firmware_info(void) +{ + return qe_firmware_uploaded ? &qe_firmware_info : NULL; +} + +static int qe_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + ulong addr; + + if (argc < 3) + return cmd_usage(cmdtp); + + if (strcmp(argv[1], "fw") == 0) { + addr = simple_strtoul(argv[2], NULL, 16); + + if (!addr) { + printf("Invalid address\n"); + return -EINVAL; + } + + /* + * If a length was supplied, compare that with the 'length' + * field. + */ + + if (argc > 3) { + ulong length = simple_strtoul(argv[3], NULL, 16); + struct qe_firmware *firmware = (void *) addr; + + if (length != be32_to_cpu(firmware->header.length)) { + printf("Length mismatch\n"); + return -EINVAL; + } + } + + return qe_upload_firmware((const struct qe_firmware *) addr); + } + + return cmd_usage(cmdtp); +} + +U_BOOT_CMD( + qe, 4, 0, qe_cmd, + "QUICC Engine commands", + "fw [] - Upload firmware binary at address to " + "the QE,\n" + "\twith optional length verification." +);