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-rw-r--r--target/linux/brcm47xx/patches-3.0/0001-bcma-move-parsing-of-EEPROM-into-own-function.patch274
1 files changed, 274 insertions, 0 deletions
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 0000000000..e535617c75
--- /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 <hauke@hauke-m.de>
+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 <hauke@hauke-m.de>
+---
+ 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;
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