[PATCH] Clear PLB4A0_ACR[WRP] on Sequoia (440EPx)
This fix will make the MAL burst disabling patch for the Linux
EMAC driver obsolete.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/amcc/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index ff211ae..703204f 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -35,9 +35,9 @@
int board_early_init_f(void)
{
- unsigned long sdr0_cust0;
- unsigned long sdr0_pfc1, sdr0_pfc2;
- register uint reg;
+ u32 sdr0_cust0;
+ u32 sdr0_pfc1, sdr0_pfc2;
+ u32 reg;
mtdcr(ebccfga, xbcfg);
mtdcr(ebccfgd, 0xb8400000);
@@ -142,6 +142,7 @@
{
uint pbcr;
int size_val = 0;
+ u32 reg;
#ifdef CONFIG_440EPX
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
@@ -335,6 +336,14 @@
}
#endif /* CONFIG_440EPX */
+ /*
+ * Clear PLB4A0_ACR[WRP]
+ * This fix will make the MAL burst disabling patch for the Linux
+ * EMAC driver obsolete.
+ */
+ reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
+ mtdcr(plb4_acr, reg);
+
return 0;
}
diff --git a/include/ppc440.h b/include/ppc440.h
index 50f4ec4..91cff41 100644
--- a/include/ppc440.h
+++ b/include/ppc440.h
@@ -887,12 +887,14 @@
/* PLB4 Arbiter - PowerPC440EP Pass1 */
#define PLB4_DCR_BASE 0x080
+#define plb4_acr (PLB4_DCR_BASE+0x1)
#define plb4_revid (PLB4_DCR_BASE+0x2)
-#define plb4_acr (PLB4_DCR_BASE+0x3)
#define plb4_besr (PLB4_DCR_BASE+0x4)
#define plb4_bearl (PLB4_DCR_BASE+0x6)
#define plb4_bearh (PLB4_DCR_BASE+0x7)
+#define PLB4_ACR_WRP (0x80000000 >> 7)
+
/* Nebula PLB4 Arbiter - PowerPC440EP */
#define PLB_ARBITER_BASE 0x80
@@ -3284,26 +3286,26 @@
/*
* Macros for accessing the indirect EBC registers
*/
-#define mtebc(reg, data) mtdcr(ebccfga,reg);mtdcr(ebccfgd,data)
-#define mfebc(reg, data) mtdcr(ebccfga,reg);data = mfdcr(ebccfgd)
+#define mtebc(reg, data) { mtdcr(ebccfga,reg);mtdcr(ebccfgd,data); }
+#define mfebc(reg, data) { mtdcr(ebccfga,reg);data = mfdcr(ebccfgd); }
/*
* Macros for accessing the indirect SDRAM controller registers
*/
-#define mtsdram(reg, data) mtdcr(memcfga,reg);mtdcr(memcfgd,data)
-#define mfsdram(reg, data) mtdcr(memcfga,reg);data = mfdcr(memcfgd)
+#define mtsdram(reg, data) { mtdcr(memcfga,reg);mtdcr(memcfgd,data); }
+#define mfsdram(reg, data) { mtdcr(memcfga,reg);data = mfdcr(memcfgd); }
/*
* Macros for accessing the indirect clocking controller registers
*/
-#define mtclk(reg, data) mtdcr(clkcfga,reg);mtdcr(clkcfgd,data)
-#define mfclk(reg, data) mtdcr(clkcfga,reg);data = mfdcr(clkcfgd)
+#define mtclk(reg, data) { mtdcr(clkcfga,reg);mtdcr(clkcfgd,data); }
+#define mfclk(reg, data) { mtdcr(clkcfga,reg);data = mfdcr(clkcfgd); }
/*
* Macros for accessing the sdr controller registers
*/
-#define mtsdr(reg, data) mtdcr(sdrcfga,reg);mtdcr(sdrcfgd,data)
-#define mfsdr(reg, data) mtdcr(sdrcfga,reg);data = mfdcr(sdrcfgd)
+#define mtsdr(reg, data) { mtdcr(sdrcfga,reg);mtdcr(sdrcfgd,data); }
+#define mfsdr(reg, data) { mtdcr(sdrcfga,reg);data = mfdcr(sdrcfgd); }
#ifndef __ASSEMBLY__