ppc4xx: Update lwmon5 board
- Add optional ECC generation routine to preserve existing
RAM values. This is needed for the Linux log-buffer support
- Add optional DDR2 setup with CL=4
- GPIO50 not used anymore
- Lime register setup added
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index d5b8f8c..d916284 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -19,9 +19,10 @@
*/
#include <common.h>
-#include <asm/processor.h>
#include <ppc440.h>
+#include <asm/processor.h>
#include <asm/gpio.h>
+#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -220,6 +221,13 @@
udelay(500);
gpio_write_bit(CFG_GPIO_LIME_RST, 1);
+ /* Lime memory clock adjusted to 133MHz */
+ out_be32((void *)CFG_LIME_SDRAM_CLOCK, CFG_LIME_CLOCK_133MHZ);
+ /* Wait untill time expired. Because of requirements in lime manual */
+ udelay(300);
+ /* Write lime controller memory parameters */
+ out_be32((void *)CFG_LIME_MMR, CFG_LIME_MMR_VALUE);
+
/*
* Reset PHY's
*/
@@ -229,13 +237,6 @@
gpio_write_bit(CFG_GPIO_PHY0_RST, 1);
gpio_write_bit(CFG_GPIO_PHY1_RST, 1);
- /*
- * Reset USB hub
- */
- gpio_write_bit(CFG_GPIO_HUB_RST, 0);
- udelay(100);
- gpio_write_bit(CFG_GPIO_HUB_RST, 1);
-
return 0;
}
diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c
index 85811ad..9a4a8ee 100644
--- a/board/lwmon5/sdram.c
+++ b/board/lwmon5/sdram.c
@@ -474,8 +474,27 @@
blank_string(strlen(str));
} else {
/* ECC bit set method for cached memory */
+#if 1 /* test-only: will remove this define later, when ECC problems are solved! */
+ /*
+ * Some boards (like lwmon5) need to preserve the memory
+ * content upon ECC generation (for the log-buffer).
+ * Therefore we don't fill the memory with a pattern or
+ * just zero it, but write the same values back that are
+ * already in the memory cells.
+ */
+ address_increment = CFG_CACHELINE_SIZE;
+ end_address = current_address + num_bytes;
+
+ current_address = start_address;
+ while (current_address < end_address) {
+ ppcDcbi(current_address);
+ ppcDcbf(current_address);
+ current_address += CFG_CACHELINE_SIZE;
+ }
+#else
dcbz_area(start_address, num_bytes);
dflush();
+#endif
}
sync();
@@ -518,6 +537,8 @@
{
u32 val;
+#if 0 /* test-only: will remove this define later, when ECC problems are solved! */
+ /* CL=3 */
mtsdram(DDR0_02, 0x00000000);
mtsdram(DDR0_00, 0x0000190A);
@@ -558,6 +579,49 @@
mtsdram(DDR0_43, 0x030A0200);
mtsdram(DDR0_44, 0x00000003);
mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
+#else
+ /* CL=4 */
+ mtsdram(DDR0_02, 0x00000000);
+
+ mtsdram(DDR0_00, 0x0000190A);
+ mtsdram(DDR0_01, 0x01000000);
+ mtsdram(DDR0_03, 0x02040803); /* A suitable burst length was taken. CAS is right for our board */
+
+ mtsdram(DDR0_04, 0x0B030300);
+ mtsdram(DDR0_05, 0x02020308);
+ mtsdram(DDR0_06, 0x0003C812);
+ mtsdram(DDR0_07, 0x00090100);
+ mtsdram(DDR0_08, 0x03c80001);
+ mtsdram(DDR0_09, 0x00011D5F);
+ mtsdram(DDR0_10, 0x00000300);
+ mtsdram(DDR0_11, 0x000CC800);
+ mtsdram(DDR0_12, 0x00000003);
+ mtsdram(DDR0_14, 0x00000000);
+ mtsdram(DDR0_17, 0x1e000000);
+ mtsdram(DDR0_18, 0x1e1e1e1e);
+ mtsdram(DDR0_19, 0x1e1e1e1e);
+ mtsdram(DDR0_20, 0x0B0B0B0B);
+ mtsdram(DDR0_21, 0x0B0B0B0B);
+#ifdef CONFIG_DDR_ECC
+ mtsdram(DDR0_22, 0x00267F0B | DDR0_22_CTRL_RAW_ECC_ENABLE); /* enable ECC */
+#else
+ mtsdram(DDR0_22, 0x00267F0B);
+#endif
+
+ mtsdram(DDR0_23, 0x01000000);
+ mtsdram(DDR0_24, 0x01010001);
+
+ mtsdram(DDR0_26, 0x2D93028A);
+ mtsdram(DDR0_27, 0x0784682B);
+
+ mtsdram(DDR0_28, 0x00000080);
+ mtsdram(DDR0_31, 0x00000000);
+ mtsdram(DDR0_42, 0x01000008);
+
+ mtsdram(DDR0_43, 0x050A0200);
+ mtsdram(DDR0_44, 0x00000005);
+ mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
+#endif
wait_for_dlllock();
diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h
index c6f67fe..1d87c73 100644
--- a/include/configs/lwmon5.h
+++ b/include/configs/lwmon5.h
@@ -327,12 +327,24 @@
#define CFG_EBC_CFG 0xb8400000
/*-----------------------------------------------------------------------
+ * Graphics (Fujitsu Lime)
+ *----------------------------------------------------------------------*/
+/* SDRAM Clock frequency adjustment register */
+#define CFG_LIME_SDRAM_CLOCK 0xC1FC0000
+/* Lime Clock frequency is to set 133MHz */
+#define CFG_LIME_CLOCK_133MHZ 0x10000
+
+/* SDRAM Parameter register */
+#define CFG_LIME_MMR 0xC1FCFFFC
+/* SDRAM parameter value */
+#define CFG_LIME_MMR_VALUE 0x414FB7F2
+
+/*-----------------------------------------------------------------------
* GPIO Setup
*----------------------------------------------------------------------*/
#define CFG_GPIO_PHY1_RST 12
#define CFG_GPIO_FLASH_WP 14
#define CFG_GPIO_PHY0_RST 22
-#define CFG_GPIO_HUB_RST 50
#define CFG_GPIO_WATCHDOG 58
#define CFG_GPIO_LIME_S 59
#define CFG_GPIO_LIME_RST 60
@@ -396,7 +408,7 @@
{GPIO1_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO47 UIC_IRQ(8) DMA_ACK(0) */ \
{GPIO1_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO48 UIC_IRQ(9) DMA_EOT/TC(0) */ \
{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO49 Unselect via TraceSelect Bit */ \
-{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO50 Unselect via TraceSelect Bit */ \
+{GPIO1_BASE, GPIO_IN, GPIO_SEL , GPIO_OUT_0}, /* GPIO50 Unselect via TraceSelect Bit */ \
{GPIO1_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO51 Unselect via TraceSelect Bit */ \
{GPIO1_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO52 Unselect via TraceSelect Bit */ \
{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO53 Unselect via TraceSelect Bit */ \