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62 lines
1.8 KiB
Diff
62 lines
1.8 KiB
Diff
From 7b9116eeaf44c0d368b5eeaa06eb101465284596 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Wed, 11 Jan 2012 15:26:11 +0100
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Subject: [PATCH 23/31] bcma: add the core unit number
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Some SoCs have two pcie or gmac cores and we need to know the number of
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the specific core on the bus. This is the case for the BCM4706.
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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drivers/bcma/scan.c | 14 ++++++++++++++
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include/linux/bcma/bcma.h | 1 +
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2 files changed, 15 insertions(+), 0 deletions(-)
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--- a/drivers/bcma/scan.c
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+++ b/drivers/bcma/scan.c
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@@ -212,6 +212,17 @@ static struct bcma_device *bcma_find_cor
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return NULL;
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}
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+static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid)
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+{
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+ struct bcma_device *core;
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+
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+ list_for_each_entry_reverse(core, &bus->cores, list) {
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+ if (core->id.id == coreid)
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+ return core;
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+ }
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+ return NULL;
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+}
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+
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static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
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struct bcma_device_id *match, int core_num,
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struct bcma_device *core)
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@@ -392,6 +403,7 @@ int bcma_bus_scan(struct bcma_bus *bus)
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bcma_scan_switch_core(bus, erombase);
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while (eromptr < eromend) {
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+ struct bcma_device *other_core;
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struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL);
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if (!core)
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return -ENOMEM;
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@@ -411,6 +423,8 @@ int bcma_bus_scan(struct bcma_bus *bus)
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core->core_index = core_num++;
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bus->nr_cores++;
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+ other_core = bcma_find_core_reverse(bus, core->id.id);
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+ core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1;
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pr_info("Core %d found: %s "
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"(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
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--- a/include/linux/bcma/bcma.h
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+++ b/include/linux/bcma/bcma.h
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@@ -136,6 +136,7 @@ struct bcma_device {
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bool dev_registered;
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u8 core_index;
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+ u8 core_unit;
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u32 addr;
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u32 wrap;
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