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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-11-09 12:51:47 +0100
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-11-09 22:59:47 +0100
commit85b8c5c4bf80025de4632ae6c9a8a606e51508a4 (patch)
tree7a89b428296ab5baca8f07c4019e3485e452cf42 /drivers/net
parent15c5cdf5aa6b292145e5e3e220ec1f42b11eff6f (diff)
parent3285d4ca197928a048d3dda86751b5d26e6e0e86 (diff)
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Merge branch 'iu-boot/master' into 'u-boot-arm/master'
Conflicts: arch/arm/cpu/arm926ejs/mxs/Makefile board/compulab/cm_t35/Makefile board/corscience/tricorder/Makefile board/ppcag/bg0900/Makefile drivers/bootcount/Makefile include/configs/omap4_common.h include/configs/pdnb3.h Makefile conflicts are due to additions/removals of object files on the ARM branch vs KBuild introduction on the main branch. Resolution consists in adjusting the list of object files in the main branch version. This also applies to two files which are not listed as conflicting but had to be modified: board/compulab/common/Makefile board/udoo/Makefile include/configs/omap4_common.h conflicts are due to the OMAP4 conversion to ti_armv7_common.h on the ARM side, and CONFIG_SYS_HZ removal on the main side. Resolution is to convert as this icludes removal of CONFIG_SYS_HZ. include/configs/pdnb3.h is due to a removal on ARM side. Trivial resolution is to remove the file. Note: 'git show' will also list two files just because they are new: include/configs/am335x_igep0033.h include/configs/omap3_igep00x0.h
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/macb.c20
-rw-r--r--drivers/net/macb.h11
2 files changed, 30 insertions, 1 deletions
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index bf3983a..781a272 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -621,6 +621,24 @@ static u32 gem_mdc_clk_div(int id, struct macb_device *macb)
return config;
}
+/*
+ * Get the DMA bus width field of the network configuration register that we
+ * should program. We find the width from decoding the design configuration
+ * register to find the maximum supported data bus width.
+ */
+static u32 macb_dbw(struct macb_device *macb)
+{
+ switch (GEM_BFEXT(DBWDEF, gem_readl(macb, DCFG1))) {
+ case 4:
+ return GEM_BF(DBW, GEM_DBW128);
+ case 2:
+ return GEM_BF(DBW, GEM_DBW64);
+ case 1:
+ default:
+ return GEM_BF(DBW, GEM_DBW32);
+ }
+}
+
int macb_eth_initialize(int id, void *regs, unsigned int phy_addr)
{
struct macb_device *macb;
@@ -665,7 +683,7 @@ int macb_eth_initialize(int id, void *regs, unsigned int phy_addr)
*/
if (macb_is_gem(macb)) {
ncfgr = gem_mdc_clk_div(id, macb);
- ncfgr |= GEM_BF(DBW, 1);
+ ncfgr |= macb_dbw(macb);
} else {
ncfgr = macb_mdc_clk_div(id, macb);
}
diff --git a/drivers/net/macb.h b/drivers/net/macb.h
index de5214f..06f7c66 100644
--- a/drivers/net/macb.h
+++ b/drivers/net/macb.h
@@ -58,6 +58,9 @@
#define MACB_WOL 0x00c4
#define MACB_MID 0x00fc
+/* GEM specific register offsets */
+#define GEM_DCFG1 0x0280
+
/* Bitfields in NCR */
#define MACB_LB_OFFSET 0
#define MACB_LB_SIZE 1
@@ -242,6 +245,14 @@
#define MACB_IDNUM_SIZE 16
/* Bitfields in DCFG1 */
+#define GEM_DBWDEF_OFFSET 25
+#define GEM_DBWDEF_SIZE 3
+
+/* constants for data bus width */
+#define GEM_DBW32 0
+#define GEM_DBW64 1
+#define GEM_DBW128 2
+
/* Constants for CLK */
#define MACB_CLK_DIV8 0
#define MACB_CLK_DIV16 1