diff options
Diffstat (limited to 'core/vpd.c')
| -rw-r--r-- | core/vpd.c | 143 |
1 files changed, 0 insertions, 143 deletions
@@ -17,7 +17,6 @@ #include <skiboot.h> #include <vpd.h> #include <string.h> -#include <fsp.h> #include <device.h> #define CHECK_SPACE(_p, _n, _e) (((_e) - (_p)) >= (_n)) @@ -147,145 +146,3 @@ const void *vpd_find(const void *vpd, size_t vpd_size, p = vpd_find_keyword(p, rec_sz, keyword, sz); return p; } - -static void *vpd_lid; -static size_t vpd_lid_size; -static uint32_t vpd_lid_no; - -/* Helper to load a VPD LID. Pass a ptr to the corresponding LX keyword */ -static void *vpd_lid_preload(const uint8_t *lx) -{ - int rc; - - if (!fsp_present()) - return NULL; - - /* Now this is a guess game as we don't have the info from the - * pHyp folks. But basically, it seems to boil down to loading - * a LID whose name is 0x80e000yy where yy is the last 2 digits - * of the LX record in hex. - * - * [ Correction: After a chat with some folks, it looks like it's - * actually 4 digits, though the lid number is limited to fff - * so we weren't far off. ] - * - * For safety, we look for a matching LX record in an LXRn - * (n = lxrn argument) or in VINI if lxrn=0xff - */ - vpd_lid_no = 0x80e00000 | ((lx[6] & 0xf) << 8) | lx[7]; - - /* We don't quite know how to get to the LID directory so - * we don't know the size. Let's allocate 16K. All the VPD LIDs - * I've seen so far are much smaller. - */ -#define VPD_LID_MAX_SIZE 0x4000 - vpd_lid = malloc(VPD_LID_MAX_SIZE); - - if (!vpd_lid) { - prerror("VPD: Failed to allocate memory for LID\n"); - return NULL; - } - - /* Adjust LID number for flash side */ - vpd_lid_no = fsp_adjust_lid_side(vpd_lid_no); - printf("VPD: Trying to load VPD LID 0x%08x...\n", vpd_lid_no); - - vpd_lid_size = VPD_LID_MAX_SIZE; - - /* Load it from the FSP */ - rc = fsp_preload_lid(vpd_lid_no, vpd_lid, &vpd_lid_size); - if (rc) { - prerror("VPD: Error %d loading VPD LID\n", rc); - goto fail; - } - - return vpd_lid; - fail: - free(vpd_lid); - return NULL; -} - -void vpd_iohub_load(struct dt_node *hub_node) -{ - uint8_t record[4] = { 'L','X','R','0' }; /* not null terminated */ - const void *valid_lx; - uint8_t lx_size; - int r; - const uint32_t *p; - const uint8_t *lx; - unsigned int lxrn; - - if (!fsp_present()) - return; - - p = dt_prop_get_def(hub_node, "ibm,vpd-lx-info", NULL); - if (!p) - return; - - lxrn = p[0]; - lx = (const char *)&p[1]; - - /* verify the lid preload has started */ - if (!vpd_lid || !vpd_lid_no) { - prlog(PR_WARNING, "VPD: WARNING: Unable to load VPD lid"); - return; - } - - r = fsp_wait_lid_loaded(vpd_lid_no); - - if (r) - goto fail; - - /* Validate it */ - if (lxrn < 9) - record[3] = '0' + lxrn; - else - memcpy(record, "VINI", 4); - - valid_lx = vpd_find(vpd_lid, vpd_lid_size, record, "LX", &lx_size); - if (!valid_lx || lx_size != 8) { - prerror("VPD: Cannot find validation LX record\n"); - goto fail; - } - if (memcmp(valid_lx, lx, 8) != 0) { - prerror("VPD: LX record mismatch !\n"); - goto fail; - } - - printf("VPD: Loaded %zu bytes\n", vpd_lid_size); - - dt_add_property(hub_node, "ibm,io-vpd", vpd_lid, vpd_lid_size); - free(vpd_lid); - return; - -fail: - free(vpd_lid); - vpd_lid = NULL; - prerror("VPD: Failed to load VPD LID\n"); - return; -} - -void vpd_preload(struct dt_node *hub_node) -{ - const uint32_t *p; - const char *lxr; - - p = dt_prop_get_def(hub_node, "ibm,vpd-lx-info", NULL); - if (!p) - return; - - lxr = (const char *)&p[1]; - - vpd_lid = vpd_lid_preload(lxr); -} - -void preload_io_vpd(void) -{ - const struct dt_property *prop; - - prop = dt_find_property(dt_root, "ibm,io-vpd"); - if (!prop) { - /* LX VPD Lid not already loaded */ - vpd_preload(dt_root); - } -} |