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git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
synced 2024-12-18 13:15:32 +00:00
a2995d38c2
v1.1 allows finer grained tuning of the SSC (spread-spectrum-clocking) settings for SAS and SATA. See notes in probe_roms.h v1.3 allows the attenuation of the attached cables to be specified to the driver in terms of 'short', 'medium', and 'long' (see probe_roms.h). These settings (per phy) are retrieved from the platform oem-parameters (BIOS rom), the fallback firmware blob, or via a module parameter override. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#include <asm/types.h>
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#include <strings.h>
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#include <stdint.h>
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#include "create_fw.h"
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int write_blob(struct isci_orom *isci_orom)
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{
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FILE *fd;
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int err;
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size_t count;
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fd = fopen(blob_name, "w+");
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if (!fd) {
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perror("Open file for write failed");
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fclose(fd);
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return -EIO;
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}
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count = fwrite(isci_orom, sizeof(struct isci_orom), 1, fd);
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if (count != 1) {
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perror("Write data failed");
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fclose(fd);
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return -EIO;
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}
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fclose(fd);
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return 0;
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}
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void set_binary_values(struct isci_orom *isci_orom)
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{
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int c, phy_idx, port_idx;
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/* setting OROM signature */
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strncpy(isci_orom->hdr.signature, sig, strlen(sig));
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isci_orom->hdr.version = version;
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isci_orom->hdr.total_block_length = sizeof(struct isci_orom);
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isci_orom->hdr.hdr_length = sizeof(struct sci_bios_oem_param_block_hdr);
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isci_orom->hdr.num_elements = num_elements;
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for (c = 0; c < 2; c++) {
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struct sci_oem_params *ctrl = &isci_orom->ctrl[c];
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__u8 cable_selection_mask = 0;
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ctrl->controller.mode_type = mode_type;
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ctrl->controller.max_concurr_spin_up = max_num_concurrent_dev_spin_up;
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ctrl->controller.do_enable_ssc = enable_ssc;
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for (port_idx = 0; port_idx < SCI_MAX_PORTS; port_idx++)
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ctrl->ports[port_idx].phy_mask = phy_mask[c][port_idx];
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for (phy_idx = 0; phy_idx < SCI_MAX_PHYS; phy_idx++) {
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struct sci_phy_oem_params *phy = &ctrl->phys[phy_idx];
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__u8 cable_phy = cable_selection[c][phy_idx];
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phy->sas_address.high = sas_addr[c][phy_idx] >> 32;
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phy->sas_address.low = sas_addr[c][phy_idx];
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phy->afe_tx_amp_control0 = afe_tx_amp_control0;
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phy->afe_tx_amp_control1 = afe_tx_amp_control1;
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phy->afe_tx_amp_control2 = afe_tx_amp_control2;
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phy->afe_tx_amp_control3 = afe_tx_amp_control3;
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cable_selection_mask |= (cable_phy & 1) << phy_idx;
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cable_selection_mask |= (cable_phy & 2) << (phy_idx + 3);
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}
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ctrl->controller.cable_selection_mask = cable_selection_mask;
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}
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}
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int main(void)
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{
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int err;
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struct isci_orom *isci_orom;
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isci_orom = malloc(sizeof(struct isci_orom));
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memset(isci_orom, 0, sizeof(struct isci_orom));
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set_binary_values(isci_orom);
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err = write_blob(isci_orom);
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if (err < 0) {
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free(isci_orom);
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return err;
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}
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free(isci_orom);
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return 0;
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}
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