From 6c4398bc6add362d5b399ba361720cf1afd7176b Mon Sep 17 00:00:00 2001 From: hauke Date: Tue, 28 Jun 2011 22:21:57 +0000 Subject: brcm47xx: add initial support for devices with bcma bus. Ethernet and wifi are not working and this is highly experimental. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27301 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...-move-parsing-of-EEPROM-into-own-function.patch | 274 +++++++++++++++++++++ 1 file changed, 274 insertions(+) create mode 100644 target/linux/brcm47xx/patches-3.0/0001-bcma-move-parsing-of-EEPROM-into-own-function.patch (limited to 'target/linux/brcm47xx/patches-3.0/0001-bcma-move-parsing-of-EEPROM-into-own-function.patch') diff --git a/target/linux/brcm47xx/patches-3.0/0001-bcma-move-parsing-of-EEPROM-into-own-function.patch b/target/linux/brcm47xx/patches-3.0/0001-bcma-move-parsing-of-EEPROM-into-own-function.patch new file mode 100644 index 000000000..e535617c7 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.0/0001-bcma-move-parsing-of-EEPROM-into-own-function.patch @@ -0,0 +1,274 @@ +From c4fb5adbe45b3a1cfc509a64bb92429ab0d6fc37 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens +Date: Sat, 11 Jun 2011 16:47:38 +0200 +Subject: [PATCH 01/14] bcma: move parsing of EEPROM into own function. + +Move the parsing of the EEPROM data in scan function for one core into +an own function. Now we are able to use it in some other scan function +as well. + +Signed-off-by: Hauke Mehrtens +--- + drivers/bcma/scan.c | 230 ++++++++++++++++++++++++++------------------------- + 1 files changed, 118 insertions(+), 112 deletions(-) + +--- a/drivers/bcma/scan.c ++++ b/drivers/bcma/scan.c +@@ -200,16 +200,124 @@ static s32 bcma_erom_get_addr_desc(struc + return addrl; + } + ++static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, ++ struct bcma_device *core) ++{ ++ s32 tmp; ++ u8 i, j; ++ s32 cia, cib; ++ u8 ports[2], wrappers[2]; ++ ++ /* get CIs */ ++ cia = bcma_erom_get_ci(bus, eromptr); ++ if (cia < 0) { ++ bcma_erom_push_ent(eromptr); ++ if (bcma_erom_is_end(bus, eromptr)) ++ return -ESPIPE; ++ return -EILSEQ; ++ } ++ cib = bcma_erom_get_ci(bus, eromptr); ++ if (cib < 0) ++ return -EILSEQ; ++ ++ /* parse CIs */ ++ core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT; ++ core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT; ++ core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT; ++ ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT; ++ ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT; ++ wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT; ++ wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT; ++ core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT; ++ ++ if (((core->id.manuf == BCMA_MANUF_ARM) && ++ (core->id.id == 0xFFF)) || ++ (ports[1] == 0)) { ++ bcma_erom_skip_component(bus, eromptr); ++ return -ENXIO; ++ } ++ ++ /* check if component is a core at all */ ++ if (wrappers[0] + wrappers[1] == 0) { ++ /* we could save addrl of the router ++ if (cid == BCMA_CORE_OOB_ROUTER) ++ */ ++ bcma_erom_skip_component(bus, eromptr); ++ return -ENXIO; ++ } ++ ++ if (bcma_erom_is_bridge(bus, eromptr)) { ++ bcma_erom_skip_component(bus, eromptr); ++ return -ENXIO; ++ } ++ ++ /* get & parse master ports */ ++ for (i = 0; i < ports[0]; i++) { ++ u32 mst_port_d = bcma_erom_get_mst_port(bus, eromptr); ++ if (mst_port_d < 0) ++ return -EILSEQ; ++ } ++ ++ /* get & parse slave ports */ ++ for (i = 0; i < ports[1]; i++) { ++ for (j = 0; ; j++) { ++ tmp = bcma_erom_get_addr_desc(bus, eromptr, ++ SCAN_ADDR_TYPE_SLAVE, i); ++ if (tmp < 0) { ++ /* no more entries for port _i_ */ ++ /* pr_debug("erom: slave port %d " ++ * "has %d descriptors\n", i, j); */ ++ break; ++ } else { ++ if (i == 0 && j == 0) ++ core->addr = tmp; ++ } ++ } ++ } ++ ++ /* get & parse master wrappers */ ++ for (i = 0; i < wrappers[0]; i++) { ++ for (j = 0; ; j++) { ++ tmp = bcma_erom_get_addr_desc(bus, eromptr, ++ SCAN_ADDR_TYPE_MWRAP, i); ++ if (tmp < 0) { ++ /* no more entries for port _i_ */ ++ /* pr_debug("erom: master wrapper %d " ++ * "has %d descriptors\n", i, j); */ ++ break; ++ } else { ++ if (i == 0 && j == 0) ++ core->wrap = tmp; ++ } ++ } ++ } ++ ++ /* get & parse slave wrappers */ ++ for (i = 0; i < wrappers[1]; i++) { ++ u8 hack = (ports[1] == 1) ? 0 : 1; ++ for (j = 0; ; j++) { ++ tmp = bcma_erom_get_addr_desc(bus, eromptr, ++ SCAN_ADDR_TYPE_SWRAP, i + hack); ++ if (tmp < 0) { ++ /* no more entries for port _i_ */ ++ /* pr_debug("erom: master wrapper %d " ++ * has %d descriptors\n", i, j); */ ++ break; ++ } else { ++ if (wrappers[0] == 0 && !i && !j) ++ core->wrap = tmp; ++ } ++ } ++ } ++ return 0; ++} ++ + int bcma_bus_scan(struct bcma_bus *bus) + { + u32 erombase; + u32 __iomem *eromptr, *eromend; + +- s32 cia, cib; +- u8 ports[2], wrappers[2]; +- + s32 tmp; +- u8 i, j; + + int err; + +@@ -236,112 +344,13 @@ int bcma_bus_scan(struct bcma_bus *bus) + INIT_LIST_HEAD(&core->list); + core->bus = bus; + +- /* get CIs */ +- cia = bcma_erom_get_ci(bus, &eromptr); +- if (cia < 0) { +- bcma_erom_push_ent(&eromptr); +- if (bcma_erom_is_end(bus, &eromptr)) +- break; +- err= -EILSEQ; +- goto out; +- } +- cib = bcma_erom_get_ci(bus, &eromptr); +- if (cib < 0) { +- err= -EILSEQ; +- goto out; +- } +- +- /* parse CIs */ +- core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT; +- core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT; +- core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT; +- ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT; +- ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT; +- wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT; +- wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT; +- core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT; +- +- if (((core->id.manuf == BCMA_MANUF_ARM) && +- (core->id.id == 0xFFF)) || +- (ports[1] == 0)) { +- bcma_erom_skip_component(bus, &eromptr); ++ err = bcma_get_next_core(bus, &eromptr, core); ++ if (err == -ENXIO) + continue; +- } +- +- /* check if component is a core at all */ +- if (wrappers[0] + wrappers[1] == 0) { +- /* we could save addrl of the router +- if (cid == BCMA_CORE_OOB_ROUTER) +- */ +- bcma_erom_skip_component(bus, &eromptr); +- continue; +- } +- +- if (bcma_erom_is_bridge(bus, &eromptr)) { +- bcma_erom_skip_component(bus, &eromptr); +- continue; +- } +- +- /* get & parse master ports */ +- for (i = 0; i < ports[0]; i++) { +- u32 mst_port_d = bcma_erom_get_mst_port(bus, &eromptr); +- if (mst_port_d < 0) { +- err= -EILSEQ; +- goto out; +- } +- } +- +- /* get & parse slave ports */ +- for (i = 0; i < ports[1]; i++) { +- for (j = 0; ; j++) { +- tmp = bcma_erom_get_addr_desc(bus, &eromptr, +- SCAN_ADDR_TYPE_SLAVE, i); +- if (tmp < 0) { +- /* no more entries for port _i_ */ +- /* pr_debug("erom: slave port %d " +- * "has %d descriptors\n", i, j); */ +- break; +- } else { +- if (i == 0 && j == 0) +- core->addr = tmp; +- } +- } +- } +- +- /* get & parse master wrappers */ +- for (i = 0; i < wrappers[0]; i++) { +- for (j = 0; ; j++) { +- tmp = bcma_erom_get_addr_desc(bus, &eromptr, +- SCAN_ADDR_TYPE_MWRAP, i); +- if (tmp < 0) { +- /* no more entries for port _i_ */ +- /* pr_debug("erom: master wrapper %d " +- * "has %d descriptors\n", i, j); */ +- break; +- } else { +- if (i == 0 && j == 0) +- core->wrap = tmp; +- } +- } +- } +- +- /* get & parse slave wrappers */ +- for (i = 0; i < wrappers[1]; i++) { +- u8 hack = (ports[1] == 1) ? 0 : 1; +- for (j = 0; ; j++) { +- tmp = bcma_erom_get_addr_desc(bus, &eromptr, +- SCAN_ADDR_TYPE_SWRAP, i + hack); +- if (tmp < 0) { +- /* no more entries for port _i_ */ +- /* pr_debug("erom: master wrapper %d " +- * has %d descriptors\n", i, j); */ +- break; +- } else { +- if (wrappers[0] == 0 && !i && !j) +- core->wrap = tmp; +- } +- } +- } ++ else if (err == -ESPIPE) ++ break; ++ else if (err < 0) ++ return err; + + pr_info("Core %d found: %s " + "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", +@@ -351,9 +360,6 @@ int bcma_bus_scan(struct bcma_bus *bus) + + core->core_index = bus->nr_cores++; + list_add(&core->list, &bus->cores); +- continue; +-out: +- return err; + } + + return 0; -- cgit v1.2.3