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authorHauke Mehrtens <hauke@hauke-m.de>2013-11-11 00:13:31 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2013-11-11 00:13:31 +0000
commit7444a626e2edd01e2bbab97d9aa78e98cc604bf4 (patch)
treee6dff12cb00ea72180bba655cd903fa996cc09bd /target/linux/generic/patches-3.12
parentb4a01fc85436d64a056f8d767aeda1471dca8b0d (diff)
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kernel: bgmac: make it send and receive some packages on BCM4708
This adds some more code for bgmac core rev 4 and it now restarts all cores when initializing the first one on BCM4708. I am just able to send under 100 packages and then DMA TX does not work any more. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 38714
Diffstat (limited to 'target/linux/generic/patches-3.12')
-rw-r--r--target/linux/generic/patches-3.12/026-bcma-export-bcma_find_core_unit.patch69
-rw-r--r--target/linux/generic/patches-3.12/772-bgmac-add-supprot-for-BCM4707.patch26
-rw-r--r--target/linux/generic/patches-3.12/773-bgmac-add-srab-switch.patch4
-rw-r--r--target/linux/generic/patches-3.12/774-bgmac-add-some-workaround-for-rev-4.patch163
4 files changed, 260 insertions, 2 deletions
diff --git a/target/linux/generic/patches-3.12/026-bcma-export-bcma_find_core_unit.patch b/target/linux/generic/patches-3.12/026-bcma-export-bcma_find_core_unit.patch
new file mode 100644
index 0000000..86bce67
--- /dev/null
+++ b/target/linux/generic/patches-3.12/026-bcma-export-bcma_find_core_unit.patch
@@ -0,0 +1,69 @@
+From 0fc9d696e4855f1e03910c431499d68e75904929 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 10 Nov 2013 20:43:46 +0100
+Subject: [PATCH] bcma: export bcma_find_core_unit()
+
+---
+ drivers/bcma/bcma_private.h | 2 --
+ drivers/bcma/main.c | 13 +------------
+ include/linux/bcma/bcma.h | 9 ++++++++-
+ 3 files changed, 9 insertions(+), 15 deletions(-)
+
+--- a/drivers/bcma/bcma_private.h
++++ b/drivers/bcma/bcma_private.h
+@@ -33,8 +33,6 @@ int __init bcma_bus_early_register(struc
+ int bcma_bus_suspend(struct bcma_bus *bus);
+ int bcma_bus_resume(struct bcma_bus *bus);
+ #endif
+-struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
+- u8 unit);
+
+ /* scan.c */
+ int bcma_bus_scan(struct bcma_bus *bus);
+--- a/drivers/bcma/main.c
++++ b/drivers/bcma/main.c
+@@ -69,18 +69,6 @@ static u16 bcma_cc_core_id(struct bcma_b
+ return BCMA_CORE_CHIPCOMMON;
+ }
+
+-struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid)
+-{
+- struct bcma_device *core;
+-
+- list_for_each_entry(core, &bus->cores, list) {
+- if (core->id.id == coreid)
+- return core;
+- }
+- return NULL;
+-}
+-EXPORT_SYMBOL_GPL(bcma_find_core);
+-
+ struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
+ u8 unit)
+ {
+@@ -92,6 +80,7 @@ struct bcma_device *bcma_find_core_unit(
+ }
+ return NULL;
+ }
++EXPORT_SYMBOL_GPL(bcma_find_core_unit);
+
+ bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
+ int timeout)
+--- a/include/linux/bcma/bcma.h
++++ b/include/linux/bcma/bcma.h
+@@ -418,7 +418,14 @@ static inline void bcma_maskset16(struct
+ bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set);
+ }
+
+-extern struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid);
++extern struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
++ u8 unit);
++static inline struct bcma_device *bcma_find_core(struct bcma_bus *bus,
++ u16 coreid)
++{
++ return bcma_find_core_unit(bus, coreid, 0);
++}
++
+ extern bool bcma_core_is_enabled(struct bcma_device *core);
+ extern void bcma_core_disable(struct bcma_device *core, u32 flags);
+ extern int bcma_core_enable(struct bcma_device *core, u32 flags);
diff --git a/target/linux/generic/patches-3.12/772-bgmac-add-supprot-for-BCM4707.patch b/target/linux/generic/patches-3.12/772-bgmac-add-supprot-for-BCM4707.patch
index eb1708a..a4e5177 100644
--- a/target/linux/generic/patches-3.12/772-bgmac-add-supprot-for-BCM4707.patch
+++ b/target/linux/generic/patches-3.12/772-bgmac-add-supprot-for-BCM4707.patch
@@ -97,6 +97,32 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
+@@ -1488,6 +1512,25 @@ static int bgmac_probe(struct bcma_devic
+ goto err_netdev_free;
+ }
+
++ /* Northstar, take all GMAC cores out of reset */
++ if (core->id.id == BCMA_CHIP_ID_BCM4707 ||
++ core->id.id == BCMA_CHIP_ID_BCM53018) {
++ struct bcma_device *ns_core;
++ int ns_gmac;
++
++ for (ns_gmac = 0; ns_gmac < 4; ns_gmac++) {
++ /* As northstar requirement, we have to reset all GAMCs before
++ * accessing them. et_probe() call pci_enable_device() for etx
++ * and do si_core_reset for GAMCx only. Then the other three
++ * GAMCs didn't reset. We do it here.
++ */
++ ns_core = bcma_find_core_unit(core->bus, BCMA_CORE_MAC_GBIT, ns_gmac);
++ if (!bcma_core_is_enabled(ns_core)) {
++ bcma_core_enable(ns_core, 0);
++ }
++ }
++ }
++
+ bgmac_chip_reset(bgmac);
+
+ err = bgmac_dma_alloc(bgmac);
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -185,6 +185,7 @@
diff --git a/target/linux/generic/patches-3.12/773-bgmac-add-srab-switch.patch b/target/linux/generic/patches-3.12/773-bgmac-add-srab-switch.patch
index e5ec78d..be25306 100644
--- a/target/linux/generic/patches-3.12/773-bgmac-add-srab-switch.patch
+++ b/target/linux/generic/patches-3.12/773-bgmac-add-srab-switch.patch
@@ -30,7 +30,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
/**************************************************
* BCMA bus ops
**************************************************/
-@@ -1542,6 +1554,16 @@ static int bgmac_probe(struct bcma_devic
+@@ -1561,6 +1573,16 @@ static int bgmac_probe(struct bcma_devic
goto err_dma_free;
}
@@ -47,7 +47,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
err = register_netdev(bgmac->net_dev);
if (err) {
bgmac_err(bgmac, "Cannot register net device\n");
-@@ -1571,6 +1593,10 @@ static void bgmac_remove(struct bcma_dev
+@@ -1590,6 +1612,10 @@ static void bgmac_remove(struct bcma_dev
{
struct bgmac *bgmac = bcma_get_drvdata(core);
diff --git a/target/linux/generic/patches-3.12/774-bgmac-add-some-workaround-for-rev-4.patch b/target/linux/generic/patches-3.12/774-bgmac-add-some-workaround-for-rev-4.patch
new file mode 100644
index 0000000..4e1a449
--- /dev/null
+++ b/target/linux/generic/patches-3.12/774-bgmac-add-some-workaround-for-rev-4.patch
@@ -0,0 +1,163 @@
+From ec12b94d22fa8715561bdffe6da0781dac08423e Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 10 Nov 2013 21:23:57 +0100
+Subject: [PATCH] bgmac: add some workaround for rev 4
+
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 8 ++++----
+ drivers/net/ethernet/broadcom/bgmac.h | 4 +++-
+ 2 files changed, 7 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -97,6 +97,16 @@ static void bgmac_dma_tx_enable(struct b
+ u32 ctl;
+
+ ctl = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL);
++ if (bgmac->core->id.rev == 4) {
++ ctl &= ~BGMAC_DMA_TX_BL_MASK;
++ ctl |= BGMAC_DMA_TX_BL_128 << BGMAC_DMA_TX_BL_SHIFT;
++ ctl &= ~BGMAC_DMA_TX_MR_MASK;
++ ctl |= BGMAC_DMA_TX_MR_2 << BGMAC_DMA_TX_MR_SHIFT;
++ ctl &= ~BGMAC_DMA_TX_PC_MASK;
++ ctl |= BGMAC_DMA_TX_PC_16 << BGMAC_DMA_TX_PC_SHIFT;
++ ctl &= ~BGMAC_DMA_TX_PT_MASK;
++ ctl |= BGMAC_DMA_TX_PT_8 << BGMAC_DMA_TX_PT_SHIFT;
++ }
+ ctl |= BGMAC_DMA_TX_ENABLE;
+ ctl |= BGMAC_DMA_TX_PARITY_DISABLE;
+ bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL, ctl);
+@@ -246,6 +256,17 @@ static void bgmac_dma_rx_enable(struct b
+ ctl |= BGMAC_DMA_RX_PARITY_DISABLE;
+ ctl |= BGMAC_DMA_RX_OVERFLOW_CONT;
+ ctl |= BGMAC_RX_FRAME_OFFSET << BGMAC_DMA_RX_FRAME_OFFSET_SHIFT;
++
++ if (bgmac->core->id.rev == 4) {
++ ctl &= ~BGMAC_DMA_RX_BL_MASK;
++ ctl |= BGMAC_DMA_RX_BL_128 << BGMAC_DMA_RX_BL_SHIFT;
++
++ ctl &= ~BGMAC_DMA_RX_PC_MASK;
++ ctl |= BGMAC_DMA_RX_PC_8 << BGMAC_DMA_RX_PC_SHIFT;
++
++ ctl &= ~BGMAC_DMA_RX_PT_MASK;
++ ctl |= BGMAC_DMA_RX_PT_1 << BGMAC_DMA_RX_PT_SHIFT;
++ }
+ bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL, ctl);
+ }
+
+@@ -812,13 +833,13 @@ static void bgmac_cmdcfg_maskset(struct
+ u32 cmdcfg = bgmac_read(bgmac, BGMAC_CMDCFG);
+ u32 new_val = (cmdcfg & mask) | set;
+
+- bgmac_set(bgmac, BGMAC_CMDCFG, BGMAC_CMDCFG_SR);
++ bgmac_set(bgmac, BGMAC_CMDCFG, BGMAC_CMDCFG_SR(bgmac->core->id.rev));
+ udelay(2);
+
+ if (new_val != cmdcfg || force)
+ bgmac_write(bgmac, BGMAC_CMDCFG, new_val);
+
+- bgmac_mask(bgmac, BGMAC_CMDCFG, ~BGMAC_CMDCFG_SR);
++ bgmac_mask(bgmac, BGMAC_CMDCFG, ~BGMAC_CMDCFG_SR(bgmac->core->id.rev));
+ udelay(2);
+ }
+
+@@ -1029,7 +1050,7 @@ static void bgmac_chip_reset(struct bgma
+ BGMAC_CMDCFG_PROM |
+ BGMAC_CMDCFG_NLC |
+ BGMAC_CMDCFG_CFE |
+- BGMAC_CMDCFG_SR,
++ BGMAC_CMDCFG_SR(core->id.rev),
+ false);
+
+ bgmac_clear_mib(bgmac);
+@@ -1070,7 +1091,7 @@ static void bgmac_enable(struct bgmac *b
+
+ cmdcfg = bgmac_read(bgmac, BGMAC_CMDCFG);
+ bgmac_cmdcfg_maskset(bgmac, ~(BGMAC_CMDCFG_TE | BGMAC_CMDCFG_RE),
+- BGMAC_CMDCFG_SR, true);
++ BGMAC_CMDCFG_SR(bgmac->core->id.rev), true);
+ udelay(2);
+ cmdcfg |= BGMAC_CMDCFG_TE | BGMAC_CMDCFG_RE;
+ bgmac_write(bgmac, BGMAC_CMDCFG, cmdcfg);
+--- a/drivers/net/ethernet/broadcom/bgmac.h
++++ b/drivers/net/ethernet/broadcom/bgmac.h
+@@ -194,7 +194,9 @@
+ #define BGMAC_CMDCFG_TAI 0x00000200
+ #define BGMAC_CMDCFG_HD 0x00000400 /* Set if in half duplex mode */
+ #define BGMAC_CMDCFG_HD_SHIFT 10
+-#define BGMAC_CMDCFG_SR 0x00000800 /* Set to reset mode */
++#define BGMAC_CMDCFG_SR_REVO 0x00000800 /* Set to reset mode, for other revs */
++#define BGMAC_CMDCFG_SR_REV4 0x00002000 /* Set to reset mode, only for core rev 4 */
++#define BGMAC_CMDCFG_SR(rev) ((rev == 4) ? BGMAC_CMDCFG_SR_REV4 : BGMAC_CMDCFG_SR_REVO)
+ #define BGMAC_CMDCFG_ML 0x00008000 /* Set to activate mac loopback mode */
+ #define BGMAC_CMDCFG_AE 0x00400000
+ #define BGMAC_CMDCFG_CFE 0x00800000
+@@ -255,9 +257,34 @@
+ #define BGMAC_DMA_TX_SUSPEND 0x00000002
+ #define BGMAC_DMA_TX_LOOPBACK 0x00000004
+ #define BGMAC_DMA_TX_FLUSH 0x00000010
++#define BGMAC_DMA_TX_MR_MASK 0x000000C0 /* Multiple outstanding reads */
++#define BGMAC_DMA_TX_MR_SHIFT 6
++#define BGMAC_DMA_TX_MR_1 0
++#define BGMAC_DMA_TX_MR_2 1
+ #define BGMAC_DMA_TX_PARITY_DISABLE 0x00000800
+ #define BGMAC_DMA_TX_ADDREXT_MASK 0x00030000
+ #define BGMAC_DMA_TX_ADDREXT_SHIFT 16
++#define BGMAC_DMA_TX_BL_MASK 0x001C0000 /* BurstLen bits */
++#define BGMAC_DMA_TX_BL_SHIFT 18
++#define BGMAC_DMA_TX_BL_16 0
++#define BGMAC_DMA_TX_BL_32 1
++#define BGMAC_DMA_TX_BL_64 2
++#define BGMAC_DMA_TX_BL_128 3
++#define BGMAC_DMA_TX_BL_256 4
++#define BGMAC_DMA_TX_BL_512 5
++#define BGMAC_DMA_TX_BL_1024 6
++#define BGMAC_DMA_TX_PC_MASK 0x00E00000 /* Prefetch control */
++#define BGMAC_DMA_TX_PC_SHIFT 21
++#define BGMAC_DMA_TX_PC_0 0
++#define BGMAC_DMA_TX_PC_4 1
++#define BGMAC_DMA_TX_PC_8 2
++#define BGMAC_DMA_TX_PC_16 3
++#define BGMAC_DMA_TX_PT_MASK 0x03000000 /* Prefetch threshold */
++#define BGMAC_DMA_TX_PT_SHIFT 24
++#define BGMAC_DMA_TX_PT_1 0
++#define BGMAC_DMA_TX_PT_2 1
++#define BGMAC_DMA_TX_PT_4 2
++#define BGMAC_DMA_TX_PT_8 3
+ #define BGMAC_DMA_TX_INDEX 0x04
+ #define BGMAC_DMA_TX_RINGLO 0x08
+ #define BGMAC_DMA_TX_RINGHI 0x0C
+@@ -285,8 +312,33 @@
+ #define BGMAC_DMA_RX_DIRECT_FIFO 0x00000100
+ #define BGMAC_DMA_RX_OVERFLOW_CONT 0x00000400
+ #define BGMAC_DMA_RX_PARITY_DISABLE 0x00000800
++#define BGMAC_DMA_RX_MR_MASK 0x000000C0 /* Multiple outstanding reads */
++#define BGMAC_DMA_RX_MR_SHIFT 6
++#define BGMAC_DMA_TX_MR_1 0
++#define BGMAC_DMA_TX_MR_2 1
+ #define BGMAC_DMA_RX_ADDREXT_MASK 0x00030000
+ #define BGMAC_DMA_RX_ADDREXT_SHIFT 16
++#define BGMAC_DMA_RX_BL_MASK 0x001C0000 /* BurstLen bits */
++#define BGMAC_DMA_RX_BL_SHIFT 18
++#define BGMAC_DMA_RX_BL_16 0
++#define BGMAC_DMA_RX_BL_32 1
++#define BGMAC_DMA_RX_BL_64 2
++#define BGMAC_DMA_RX_BL_128 3
++#define BGMAC_DMA_RX_BL_256 4
++#define BGMAC_DMA_RX_BL_512 5
++#define BGMAC_DMA_RX_BL_1024 6
++#define BGMAC_DMA_RX_PC_MASK 0x00E00000 /* Prefetch control */
++#define BGMAC_DMA_RX_PC_SHIFT 21
++#define BGMAC_DMA_RX_PC_0 0
++#define BGMAC_DMA_RX_PC_4 1
++#define BGMAC_DMA_RX_PC_8 2
++#define BGMAC_DMA_RX_PC_16 3
++#define BGMAC_DMA_RX_PT_MASK 0x03000000 /* Prefetch threshold */
++#define BGMAC_DMA_RX_PT_SHIFT 24
++#define BGMAC_DMA_RX_PT_1 0
++#define BGMAC_DMA_RX_PT_2 1
++#define BGMAC_DMA_RX_PT_4 2
++#define BGMAC_DMA_RX_PT_8 3
+ #define BGMAC_DMA_RX_INDEX 0x24
+ #define BGMAC_DMA_RX_RINGLO 0x28
+ #define BGMAC_DMA_RX_RINGHI 0x2C