*/
#include "common.h"
+#include <command.h>
#include "asm/errno.h"
#include "asm/io.h"
#include "asm/immap_qe.h"
return 0;
}
+/* The maximum number of RISCs we support */
+#define MAX_QE_RISC 2
+
+/* 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, 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 *argv[])
+{
+ ulong addr;
+
+ if (argc < 3) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ 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);
+ }
+
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+}
+
+U_BOOT_CMD(
+ qe, 4, 0, qe_cmd,
+ "qe - QUICC Engine commands\n",
+ "fw <addr> [<length>] - Upload firmware binary at address <addr> to "
+ "the QE,\n\twith optional length <length> verification.\n"
+ );
+
#endif /* CONFIG_QE */
#define QE_SDEBCR_BA_MASK 0x01FFFFFF
+/* Communication Processor */
+#define QE_CP_CERCR_MEE 0x8000 /* Multi-user RAM ECC enable */
+#define QE_CP_CERCR_IEE 0x4000 /* Instruction RAM ECC enable */
+#define QE_CP_CERCR_CIR 0x0800 /* Common instruction RAM */
+
+/* I-RAM */
+#define QE_IRAM_IADD_AIE 0x80000000 /* Auto Increment Enable */
+#define QE_IRAM_IADD_BADDR 0x00080000 /* Base Address */
+
+/* Structure that defines QE firmware binary files.
+ *
+ * See doc/README.qe_firmware for a description of these fields.
+ */
+struct qe_firmware {
+ struct qe_header {
+ u32 length; /* Length of the entire structure, in bytes */
+ u8 magic[3]; /* Set to { 'Q', 'E', 'F' } */
+ u8 version; /* Version of this layout. First ver is '1' */
+ } header;
+ u8 id[62]; /* Null-terminated identifier string */
+ u8 split; /* 0 = shared I-RAM, 1 = split I-RAM */
+ u8 count; /* Number of microcode[] structures */
+ struct {
+ u16 model; /* The SOC model */
+ u8 major; /* The SOC revision major */
+ u8 minor; /* The SOC revision minor */
+ } __attribute__ ((packed)) soc;
+ u8 padding[4]; /* Reserved, for alignment */
+ u64 extended_modes; /* Extended modes */
+ u32 vtraps[8]; /* Virtual trap addresses */
+ u8 reserved[4]; /* Reserved, for future expansion */
+ struct qe_microcode {
+ u8 id[32]; /* Null-terminated identifier */
+ u32 traps[16]; /* Trap addresses, 0 == ignore */
+ u32 eccr; /* The value for the ECCR register */
+ u32 iram_offset; /* Offset into I-RAM for the code */
+ u32 count; /* Number of 32-bit words of the code */
+ u32 code_offset; /* Offset of the actual microcode */
+ u8 major; /* The microcode version major */
+ u8 minor; /* The microcode version minor */
+ u8 revision; /* The microcode version revision */
+ u8 padding; /* Reserved, for alignment */
+ u8 reserved[4]; /* Reserved, for future expansion */
+ } __attribute__ ((packed)) microcode[1];
+ /* All microcode binaries should be located here */
+ /* CRC32 should be located here, after the microcode binaries */
+} __attribute__ ((packed));
+
+struct qe_firmware_info {
+ char id[64]; /* Firmware name */
+ u32 vtraps[8]; /* Virtual trap addresses */
+ u64 extended_modes; /* Extended modes */
+};
+
void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign);
void qe_issue_cmd(uint cmd, uint sbc, u8 mcn, u32 cmd_data);
uint qe_muram_alloc(uint size, uint align);
void qe_assign_page(uint snum, uint para_ram_base);
int qe_set_brg(uint brg, uint rate);
int qe_set_mii_clk_src(int ucc_num);
+int qe_upload_firmware(const struct qe_firmware *firmware);
+struct qe_firmware_info *qe_get_firmware_info(void);
#endif /* __QE_H__ */
projects / u-boot.git / commitdiff