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authorTom Rini <trini@ti.com>2014-08-20 16:07:34 -0400
committerTom Rini <trini@ti.com>2014-08-20 16:07:34 -0400
commit67ee22b0681305ba1099c508eecade996abc1c65 (patch)
treea1da76fb52d70ed7d2335e1885ee88d8b71414b8
parent801123fe50464156103774a6e6d068ee4352a10b (diff)
parentf38391793f1a5c62d1c72a647f15a88e7c22ef11 (diff)
downloadu-boot-imx-67ee22b0681305ba1099c508eecade996abc1c65.zip
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Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu_init.c28
-rw-r--r--arch/powerpc/cpu/mpc85xx/fdt.c15
-rw-r--r--arch/powerpc/lib/board.c2
-rw-r--r--board/freescale/common/Makefile2
-rw-r--r--board/freescale/common/diu_ch7301.c136
-rw-r--r--board/freescale/common/diu_ch7301.h13
-rw-r--r--board/freescale/t1040qds/diu.c134
-rw-r--r--board/freescale/t104xrdb/Makefile1
-rw-r--r--board/freescale/t104xrdb/diu.c84
-rw-r--r--board/freescale/t104xrdb/spl.c19
-rw-r--r--board/freescale/t4qds/README (renamed from doc/README.t4240qds)19
-rw-r--r--board/freescale/t4qds/eth.c136
-rw-r--r--board/keymile/kmp204x/kmp204x.c8
-rw-r--r--drivers/net/fm/t4240.c5
-rw-r--r--drivers/qe/qe.c2
-rw-r--r--include/configs/T1040QDS.h1
-rw-r--r--include/configs/T104xRDB.h50
-rw-r--r--include/configs/km/km-powerpc.h5
18 files changed, 498 insertions, 162 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index b237505..5bfab70 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -254,12 +254,36 @@ static void enable_tdm_law(void)
void enable_cpc(void)
{
int i;
+ int ret;
u32 size = 0;
-
+ u32 cpccfg0;
+ char buffer[HWCONFIG_BUFFER_SIZE];
+ char cpc_subarg[16];
+ bool have_hwconfig = false;
+ int cpc_args = 0;
cpc_corenet_t *cpc = (cpc_corenet_t *)CONFIG_SYS_FSL_CPC_ADDR;
+ /* Extract hwconfig from environment */
+ ret = getenv_f("hwconfig", buffer, sizeof(buffer));
+ if (ret > 0) {
+ /*
+ * If "en_cpc" is not defined in hwconfig then by default all
+ * cpcs are enable. If this config is defined then individual
+ * cpcs which have to be enabled should also be defined.
+ * e.g en_cpc:cpc1,cpc2;
+ */
+ if (hwconfig_f("en_cpc", buffer))
+ have_hwconfig = true;
+ }
+
for (i = 0; i < CONFIG_SYS_NUM_CPC; i++, cpc++) {
- u32 cpccfg0 = in_be32(&cpc->cpccfg0);
+ if (have_hwconfig) {
+ sprintf(cpc_subarg, "cpc%u", i + 1);
+ cpc_args = hwconfig_sub_f("en_cpc", cpc_subarg, buffer);
+ if (cpc_args == 0)
+ continue;
+ }
+ cpccfg0 = in_be32(&cpc->cpccfg0);
size += CPC_CFG0_SZ_K(cpccfg0);
#ifdef CONFIG_SYS_FSL_ERRATUM_CPC_A002
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c
index 3665ec6..3222e26 100644
--- a/arch/powerpc/cpu/mpc85xx/fdt.c
+++ b/arch/powerpc/cpu/mpc85xx/fdt.c
@@ -134,6 +134,21 @@ void ft_fixup_cpu(void *blob, u64 memory_limit)
printf("Failed to reserve memory for spin table: %s\n",
fdt_strerror(off));
}
+#ifdef CONFIG_DEEP_SLEEP
+#ifdef CONFIG_SPL_MMC_BOOT
+ off = fdt_add_mem_rsv(blob, CONFIG_SYS_MMC_U_BOOT_START,
+ CONFIG_SYS_MMC_U_BOOT_SIZE);
+ if (off < 0)
+ printf("Failed to reserve memory for SD deep sleep: %s\n",
+ fdt_strerror(off));
+#elif defined(CONFIG_SPL_SPI_BOOT)
+ off = fdt_add_mem_rsv(blob, CONFIG_SYS_SPI_FLASH_U_BOOT_START,
+ CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE);
+ if (off < 0)
+ printf("Failed to reserve memory for SPI deep sleep: %s\n",
+ fdt_strerror(off));
+#endif
+#endif
}
#endif
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 0296205..6eaab88 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -366,6 +366,8 @@ void board_init_f(ulong bootflag)
memset((void *) gd, 0, sizeof(gd_t));
#endif
+ gd->flags = bootflag;
+
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr)
if ((*init_fnc_ptr) () != 0)
hang();
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 22b57cc..50d7731 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -34,6 +34,8 @@ ifndef CONFIG_RAMBOOT_PBL
obj-$(CONFIG_FSL_FIXED_MMC_LOCATION) += sdhc_boot.o
endif
+obj-$(CONFIG_FSL_DIU_CH7301) += diu_ch7301.o
+
obj-$(CONFIG_MPC8541CDS) += cds_pci_ft.o
obj-$(CONFIG_MPC8548CDS) += cds_pci_ft.o
obj-$(CONFIG_MPC8555CDS) += cds_pci_ft.o
diff --git a/board/freescale/common/diu_ch7301.c b/board/freescale/common/diu_ch7301.c
new file mode 100644
index 0000000..82ce870
--- /dev/null
+++ b/board/freescale/common/diu_ch7301.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ * Authors: Priyanka Jain <Priyanka.Jain@freescale.com>
+ * Wang Dongsheng <dongsheng.wang@freescale.com>
+ *
+ * This file is copied and modified from the original t1040qds/diu.c.
+ * Encoder can be used in T104x and LSx Platform.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <stdio_dev.h>
+#include <i2c.h>
+
+#define I2C_DVI_INPUT_DATA_FORMAT_REG 0x1F
+#define I2C_DVI_PLL_CHARGE_CNTL_REG 0x33
+#define I2C_DVI_PLL_DIVIDER_REG 0x34
+#define I2C_DVI_PLL_SUPPLY_CNTL_REG 0x35
+#define I2C_DVI_PLL_FILTER_REG 0x36
+#define I2C_DVI_TEST_PATTERN_REG 0x48
+#define I2C_DVI_POWER_MGMT_REG 0x49
+#define I2C_DVI_LOCK_STATE_REG 0x4D
+#define I2C_DVI_SYNC_POLARITY_REG 0x56
+
+/*
+ * Set VSYNC/HSYNC to active high. This is polarity of sync signals
+ * from DIU->DVI. The DIU default is active igh, so DVI is set to
+ * active high.
+ */
+#define I2C_DVI_INPUT_DATA_FORMAT_VAL 0x98
+
+#define I2C_DVI_PLL_CHARGE_CNTL_HIGH_SPEED_VAL 0x06
+#define I2C_DVI_PLL_DIVIDER_HIGH_SPEED_VAL 0x26
+#define I2C_DVI_PLL_FILTER_HIGH_SPEED_VAL 0xA0
+#define I2C_DVI_PLL_CHARGE_CNTL_LOW_SPEED_VAL 0x08
+#define I2C_DVI_PLL_DIVIDER_LOW_SPEED_VAL 0x16
+#define I2C_DVI_PLL_FILTER_LOW_SPEED_VAL 0x60
+
+/* Clear test pattern */
+#define I2C_DVI_TEST_PATTERN_VAL 0x18
+/* Exit Power-down mode */
+#define I2C_DVI_POWER_MGMT_VAL 0xC0
+
+/* Monitor polarity is handled via DVI Sync Polarity Register */
+#define I2C_DVI_SYNC_POLARITY_VAL 0x00
+
+/* Programming of HDMI Chrontel CH7301 connector */
+int diu_set_dvi_encoder(unsigned int pixclock)
+{
+ int ret;
+ u8 temp;
+
+ temp = I2C_DVI_TEST_PATTERN_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_TEST_PATTERN_REG, 1,
+ &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select proper dvi test pattern\n");
+ return ret;
+ }
+ temp = I2C_DVI_INPUT_DATA_FORMAT_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_INPUT_DATA_FORMAT_REG,
+ 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi input data format\n");
+ return ret;
+ }
+
+ /* Set Sync polarity register */
+ temp = I2C_DVI_SYNC_POLARITY_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_SYNC_POLARITY_REG, 1,
+ &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi syc polarity\n");
+ return ret;
+ }
+
+ /* Set PLL registers based on pixel clock rate*/
+ if (pixclock > 65000000) {
+ temp = I2C_DVI_PLL_CHARGE_CNTL_HIGH_SPEED_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
+ I2C_DVI_PLL_CHARGE_CNTL_REG, 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi pll charge_cntl\n");
+ return ret;
+ }
+ temp = I2C_DVI_PLL_DIVIDER_HIGH_SPEED_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
+ I2C_DVI_PLL_DIVIDER_REG, 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi pll divider\n");
+ return ret;
+ }
+ temp = I2C_DVI_PLL_FILTER_HIGH_SPEED_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
+ I2C_DVI_PLL_FILTER_REG, 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi pll filter\n");
+ return ret;
+ }
+ } else {
+ temp = I2C_DVI_PLL_CHARGE_CNTL_LOW_SPEED_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
+ I2C_DVI_PLL_CHARGE_CNTL_REG, 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi pll charge_cntl\n");
+ return ret;
+ }
+ temp = I2C_DVI_PLL_DIVIDER_LOW_SPEED_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
+ I2C_DVI_PLL_DIVIDER_REG, 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi pll divider\n");
+ return ret;
+ }
+ temp = I2C_DVI_PLL_FILTER_LOW_SPEED_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
+ I2C_DVI_PLL_FILTER_REG, 1, &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi pll filter\n");
+ return ret;
+ }
+ }
+
+ temp = I2C_DVI_POWER_MGMT_VAL;
+ ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_POWER_MGMT_REG, 1,
+ &temp, 1);
+ if (ret) {
+ puts("I2C: failed to select dvi power mgmt\n");
+ return ret;
+ }
+
+ udelay(500);
+
+ return 0;
+}
diff --git a/board/freescale/common/diu_ch7301.h b/board/freescale/common/diu_ch7301.h
new file mode 100644
index 0000000..8b6ead0
--- /dev/null
+++ b/board/freescale/common/diu_ch7301.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __DIU_HDMI_CH7301__
+#define __DIU_HDMI_CH7301__
+
+/* Programming of HDMI Chrontel CH7301 connector */
+int diu_set_dvi_encoder(unsigned int pixclock);
+
+#endif
diff --git a/board/freescale/t1040qds/diu.c b/board/freescale/t1040qds/diu.c
index ffd074b..0214224 100644
--- a/board/freescale/t1040qds/diu.c
+++ b/board/freescale/t1040qds/diu.c
@@ -13,42 +13,9 @@
#include <video_fb.h>
#include <fsl_diu_fb.h>
#include "../common/qixis.h"
+#include "../common/diu_ch7301.h"
#include "t1040qds.h"
#include "t1040qds_qixis.h"
-#include <i2c.h>
-
-
-#define I2C_DVI_INPUT_DATA_FORMAT_REG 0x1F
-#define I2C_DVI_PLL_CHARGE_CNTL_REG 0x33
-#define I2C_DVI_PLL_DIVIDER_REG 0x34
-#define I2C_DVI_PLL_SUPPLY_CNTL_REG 0x35
-#define I2C_DVI_PLL_FILTER_REG 0x36
-#define I2C_DVI_TEST_PATTERN_REG 0x48
-#define I2C_DVI_POWER_MGMT_REG 0x49
-#define I2C_DVI_LOCK_STATE_REG 0x4D
-#define I2C_DVI_SYNC_POLARITY_REG 0x56
-
-/*
- * Set VSYNC/HSYNC to active high. This is polarity of sync signals
- * from DIU->DVI. The DIU default is active igh, so DVI is set to
- * active high.
- */
-#define I2C_DVI_INPUT_DATA_FORMAT_VAL 0x98
-
-#define I2C_DVI_PLL_CHARGE_CNTL_HIGH_SPEED_VAL 0x06
-#define I2C_DVI_PLL_DIVIDER_HIGH_SPEED_VAL 0x26
-#define I2C_DVI_PLL_FILTER_HIGH_SPEED_VAL 0xA0
-#define I2C_DVI_PLL_CHARGE_CNTL_LOW_SPEED_VAL 0x08
-#define I2C_DVI_PLL_DIVIDER_LOW_SPEED_VAL 0x16
-#define I2C_DVI_PLL_FILTER_LOW_SPEED_VAL 0x60
-
-/* Clear test pattern */
-#define I2C_DVI_TEST_PATTERN_VAL 0x18
-/* Exit Power-down mode */
-#define I2C_DVI_POWER_MGMT_VAL 0xC0
-
-/* Monitor polarity is handled via DVI Sync Polarity Register */
-#define I2C_DVI_SYNC_POLARITY_VAL 0x00
/*
* DIU Area Descriptor
@@ -69,98 +36,6 @@
#define AD_COMP_1_SHIFT 4
#define AD_COMP_0_SHIFT 0
-/* Programming of HDMI Chrontel CH7301 connector */
-int diu_set_dvi_encoder(unsigned int pixclock)
-{
- int ret;
- u8 temp;
- select_i2c_ch_pca9547(I2C_MUX_CH_DIU);
-
- temp = I2C_DVI_TEST_PATTERN_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_TEST_PATTERN_REG, 1,
- &temp, 1);
- if (ret) {
- puts("I2C: failed to select proper dvi test pattern\n");
- return ret;
- }
- temp = I2C_DVI_INPUT_DATA_FORMAT_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_INPUT_DATA_FORMAT_REG,
- 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi input data format\n");
- return ret;
- }
-
- /* Set Sync polarity register */
- temp = I2C_DVI_SYNC_POLARITY_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_SYNC_POLARITY_REG, 1,
- &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi syc polarity\n");
- return ret;
- }
-
- /* Set PLL registers based on pixel clock rate*/
- if (pixclock > 65000000) {
- temp = I2C_DVI_PLL_CHARGE_CNTL_HIGH_SPEED_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
- I2C_DVI_PLL_CHARGE_CNTL_REG, 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi pll charge_cntl\n");
- return ret;
- }
- temp = I2C_DVI_PLL_DIVIDER_HIGH_SPEED_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
- I2C_DVI_PLL_DIVIDER_REG, 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi pll divider\n");
- return ret;
- }
- temp = I2C_DVI_PLL_FILTER_HIGH_SPEED_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
- I2C_DVI_PLL_FILTER_REG, 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi pll filter\n");
- return ret;
- }
- } else {
- temp = I2C_DVI_PLL_CHARGE_CNTL_LOW_SPEED_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
- I2C_DVI_PLL_CHARGE_CNTL_REG, 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi pll charge_cntl\n");
- return ret;
- }
- temp = I2C_DVI_PLL_DIVIDER_LOW_SPEED_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
- I2C_DVI_PLL_DIVIDER_REG, 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi pll divider\n");
- return ret;
- }
- temp = I2C_DVI_PLL_FILTER_LOW_SPEED_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR,
- I2C_DVI_PLL_FILTER_REG, 1, &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi pll filter\n");
- return ret;
- }
- }
-
- temp = I2C_DVI_POWER_MGMT_VAL;
- ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_POWER_MGMT_REG, 1,
- &temp, 1);
- if (ret) {
- puts("I2C: failed to select dvi power mgmt\n");
- return ret;
- }
-
- udelay(500);
-
- select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
- return 0;
-}
-
void diu_set_pixel_clock(unsigned int pixclock)
{
unsigned long speed_ccb, temp;
@@ -172,12 +47,19 @@ void diu_set_pixel_clock(unsigned int pixclock)
pixval = speed_ccb / temp;
/* Program HDMI encoder */
+ /* Switch channel to DIU */
+ select_i2c_ch_pca9547(I2C_MUX_CH_DIU);
+
+ /* Set dispaly encoder */
ret = diu_set_dvi_encoder(temp);
if (ret) {
puts("Failed to set DVI encoder\n");
return;
}
+ /* Switch channel to default */
+ select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+
/* Program pixel clock */
out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR,
((pixval << PXCK_BITS_START) & PXCK_MASK));
diff --git a/board/freescale/t104xrdb/Makefile b/board/freescale/t104xrdb/Makefile
index 6cd304c..b9ef17f 100644
--- a/board/freescale/t104xrdb/Makefile
+++ b/board/freescale/t104xrdb/Makefile
@@ -11,6 +11,7 @@ obj-y += t104xrdb.o
obj-y += cpld.o
obj-y += eth.o
obj-$(CONFIG_PCI) += pci.o
+obj-$(CONFIG_FSL_DIU_FB)+= diu.o
endif
obj-y += ddr.o
obj-y += law.o
diff --git a/board/freescale/t104xrdb/diu.c b/board/freescale/t104xrdb/diu.c
new file mode 100644
index 0000000..3285bef
--- /dev/null
+++ b/board/freescale/t104xrdb/diu.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ * Author: Priyanka Jain <Priyanka.Jain@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/io.h>
+#include <common.h>
+#include <command.h>
+#include <fsl_diu_fb.h>
+#include <linux/ctype.h>
+#include <video_fb.h>
+
+#include "../common/diu_ch7301.h"
+
+#include "cpld.h"
+#include "t104xrdb.h"
+
+/*
+ * DIU Area Descriptor
+ *
+ * Note that we need to byte-swap the value before it's written to the AD
+ * register. So even though the registers don't look like they're in the same
+ * bit positions as they are on the MPC8610, the same value is written to the
+ * AD register on the MPC8610 and on the P1022.
+ */
+#define AD_BYTE_F 0x10000000
+#define AD_ALPHA_C_SHIFT 25
+#define AD_BLUE_C_SHIFT 23
+#define AD_GREEN_C_SHIFT 21
+#define AD_RED_C_SHIFT 19
+#define AD_PIXEL_S_SHIFT 16
+#define AD_COMP_3_SHIFT 12
+#define AD_COMP_2_SHIFT 8
+#define AD_COMP_1_SHIFT 4
+#define AD_COMP_0_SHIFT 0
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+ unsigned long speed_ccb, temp;
+ u32 pixval;
+ int ret;
+
+ speed_ccb = get_bus_freq(0);
+ temp = 1000000000 / pixclock;
+ temp *= 1000;
+ pixval = speed_ccb / temp;
+
+ /* Program HDMI encoder */
+ ret = diu_set_dvi_encoder(temp);
+ if (ret) {
+ puts("Failed to set DVI encoder\n");
+ return;
+ }
+
+ /* Program pixel clock */
+ out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR,
+ ((pixval << PXCK_BITS_START) & PXCK_MASK));
+
+ /* enable clock*/
+ out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR, PXCKEN_MASK |
+ ((pixval << PXCK_BITS_START) & PXCK_MASK));
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+ u32 pixel_format;
+ u8 sw;
+
+ /*Configure Display ouput port as HDMI*/
+ sw = CPLD_READ(sfp_ctl_status);
+ CPLD_WRITE(sfp_ctl_status , sw & ~(CPLD_DIU_SEL_DFP));
+
+ pixel_format = cpu_to_le32(AD_BYTE_F | (3 << AD_ALPHA_C_SHIFT) |
+ (0 << AD_BLUE_C_SHIFT) | (1 << AD_GREEN_C_SHIFT) |
+ (2 << AD_RED_C_SHIFT) | (8 << AD_COMP_3_SHIFT) |
+ (8 << AD_COMP_2_SHIFT) | (8 << AD_COMP_1_SHIFT) |
+ (8 << AD_COMP_0_SHIFT) | (3 << AD_PIXEL_S_SHIFT));
+
+ printf("DIU: Switching to monitor DVI @ %ux%u\n", xres, yres);
+
+ return fsl_diu_init(xres, yres, pixel_format, 0);
+}
diff --git a/board/freescale/t104xrdb/spl.c b/board/freescale/t104xrdb/spl.c
index c628c95..3822a37 100644
--- a/board/freescale/t104xrdb/spl.c
+++ b/board/freescale/t104xrdb/spl.c
@@ -11,6 +11,7 @@
#include <mmc.h>
#include <fsl_esdhc.h>
#include <spi_flash.h>
+#include <asm/mpc85xx_gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -55,6 +56,11 @@ void board_init_f(ulong bootflag)
/* Update GD pointer */
gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
+#ifdef CONFIG_DEEP_SLEEP
+ /* disable the console if boot from deep sleep */
+ if (in_be32(&gur->scrtsr[0]) & (1 << 3))
+ gd->flags |= GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE;
+#endif
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("" : : : "memory");
@@ -120,3 +126,16 @@ void board_init_r(gd_t *gd, ulong dest_addr)
nand_boot();
#endif
}
+
+#ifdef CONFIG_DEEP_SLEEP
+void board_mem_sleep_setup(void)
+{
+ void __iomem *cpld_base = (void *)CONFIG_SYS_CPLD_BASE;
+
+ /* does not provide HW signals for power management */
+ clrbits_8(cpld_base + 0x17, 0x40);
+ /* Disable MCKE isolation */
+ gpio_set_value(2, 0);
+ udelay(1);
+}
+#endif
diff --git a/doc/README.t4240qds b/board/freescale/t4qds/README
index ef8c75f..3962fee 100644
--- a/doc/README.t4240qds
+++ b/board/freescale/t4qds/README
@@ -79,6 +79,25 @@ Board Features
- High-speed serial flash
Two Serial port
Four I2C ports
+ XFI
+ XFI is supported on T4QDS-XFI board which removed slot3 and routed
+ four Lanes A/B/C/D to a SFP+ cages, which to house fiber cable or
+ direct attach cable(copper), the copper cable is used to emulate
+ 10GBASE-KR scenario.
+ So, for XFI usage, there are two scenarios, one will use fiber cable,
+ another will use copper cable. An hwconfig env "fsl_10gkr_copper" is
+ introduced to indicate a XFI port will use copper cable, and U-boot
+ will fixup the dtb accordingly.
+ It's used as: fsl_10gkr_copper:<10g_mac_name>
+ The <10g_mac_name> can be fm1_10g1, fm1_10g2, fm2_10g1, fm2_10g2, they
+ do not have to be coexist in hwconfig. If a MAC is listed in the env
+ "fsl_10gkr_copper", it will use copper cable, otherwise, fiber cable
+ will be used by default.
+ for ex. set "fsl_10gkr_copper:fm1_10g1,fm1_10g2,fm2_10g1,fm2_10g2" in
+ hwconfig, then both four XFI ports will use copper cable.
+ set "fsl_10gkr_copper:fm1_10g1,fm1_10g2" in hwconfig, then first two
+ XFI ports will use copper cable, the other two XFI ports will use fiber
+ cable.
Memory map
----------
diff --git a/board/freescale/t4qds/eth.c b/board/freescale/t4qds/eth.c
index 6210e46..9b416b1 100644
--- a/board/freescale/t4qds/eth.c
+++ b/board/freescale/t4qds/eth.c
@@ -23,6 +23,7 @@
#include <phy.h>
#include <asm/fsl_dtsec.h>
#include <asm/fsl_serdes.h>
+#include <hwconfig.h>
#include "../common/qixis.h"
#include "../common/fman.h"
@@ -173,6 +174,10 @@ void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
enum fm_port port, int offset)
{
int interface = fm_info_get_enet_if(port);
+ ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+ u32 prtcl2 = in_be32(&gur->rcwsr[4]) & FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
+
+ prtcl2 >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
if (interface == PHY_INTERFACE_MODE_SGMII ||
interface == PHY_INTERFACE_MODE_QSGMII) {
@@ -262,6 +267,76 @@ void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
default:
break;
}
+ } else if (interface == PHY_INTERFACE_MODE_XGMII &&
+ ((prtcl2 == 55) || (prtcl2 == 57))) {
+ /*
+ * if the 10G is XFI, check hwconfig to see what is the
+ * media type, there are two types, fiber or copper,
+ * fix the dtb accordingly.
+ */
+ int media_type = 0;
+ struct fixed_link f_link;
+ char lane_mode[20] = {"10GBASE-KR"};
+ char buf[32] = "serdes-2,";
+ int off;
+
+ switch (port) {
+ case FM1_10GEC1:
+ if (hwconfig_sub("fsl_10gkr_copper", "fm1_10g1")) {
+ media_type = 1;
+ fdt_set_phy_handle(blob, prop, pa,
+ "phy_xfi1");
+ sprintf(buf, "%s%s%s", buf, "lane-a,",
+ (char *)lane_mode);
+ }
+ break;
+ case FM1_10GEC2:
+ if (hwconfig_sub("fsl_10gkr_copper", "fm1_10g2")) {
+ media_type = 1;
+ fdt_set_phy_handle(blob, prop, pa,
+ "phy_xfi2");
+ sprintf(buf, "%s%s%s", buf, "lane-b,",
+ (char *)lane_mode);
+ }
+ break;
+ case FM2_10GEC1:
+ if (hwconfig_sub("fsl_10gkr_copper", "fm2_10g1")) {
+ media_type = 1;
+ fdt_set_phy_handle(blob, prop, pa,
+ "phy_xfi3");
+ sprintf(buf, "%s%s%s", buf, "lane-d,",
+ (char *)lane_mode);
+ }
+ break;
+ case FM2_10GEC2:
+ if (hwconfig_sub("fsl_10gkr_copper", "fm2_10g2")) {
+ media_type = 1;
+ fdt_set_phy_handle(blob, prop, pa,
+ "phy_xfi4");
+ sprintf(buf, "%s%s%s", buf, "lane-c,",
+ (char *)lane_mode);
+ }
+ break;
+ default:
+ return;
+ }
+
+ if (!media_type) {
+ /* fixed-link is used for XFI fiber cable */
+ fdt_delprop(blob, offset, "phy-handle");
+ f_link.phy_id = port;
+ f_link.duplex = 1;
+ f_link.link_speed = 10000;
+ f_link.pause = 0;
+ f_link.asym_pause = 0;
+ fdt_setprop(blob, offset, "fixed-link", &f_link,
+ sizeof(f_link));
+ } else {
+ /* set property for copper cable */
+ off = fdt_node_offset_by_compat_reg(blob,
+ "fsl,fman-memac-mdio", pa + 0x1000);
+ fdt_setprop_string(blob, off, "lane-instance", buf);
+ }
}
}
@@ -295,8 +370,23 @@ void fdt_fixup_board_enet(void *fdt)
break;
case PHY_INTERFACE_MODE_XGMII:
/* check if it's XFI interface for 10g */
- if ((prtcl2 == 56) || (prtcl2 == 57)) {
- fdt_status_okay_by_alias(fdt, "emi2_xfislot3");
+ if ((prtcl2 == 55) || (prtcl2 == 57)) {
+ if (i == FM1_10GEC1 && hwconfig_sub(
+ "fsl_10gkr_copper", "fm1_10g1"))
+ fdt_status_okay_by_alias(
+ fdt, "xfi_pcs_mdio1");
+ if (i == FM1_10GEC2 && hwconfig_sub(
+ "fsl_10gkr_copper", "fm1_10g2"))
+ fdt_status_okay_by_alias(
+ fdt, "xfi_pcs_mdio2");
+ if (i == FM2_10GEC1 && hwconfig_sub(
+ "fsl_10gkr_copper", "fm2_10g1"))
+ fdt_status_okay_by_alias(
+ fdt, "xfi_pcs_mdio3");
+ if (i == FM2_10GEC2 && hwconfig_sub(
+ "fsl_10gkr_copper", "fm2_10g2"))
+ fdt_status_okay_by_alias(
+ fdt, "xfi_pcs_mdio4");
break;
}
switch (i) {
@@ -460,7 +550,7 @@ int board_eth_init(bd_t *bis)
fm_info_set_phy_address(FM1_DTSEC4, slot_qsgmii_phyaddr[2][3]);
fm_info_set_phy_address(FM1_DTSEC5, slot_qsgmii_phyaddr[1][0]);
fm_info_set_phy_address(FM1_DTSEC6, slot_qsgmii_phyaddr[1][1]);
- if ((srds_prtcl_s2 != 56) && (srds_prtcl_s2 != 57)) {
+ if ((srds_prtcl_s2 != 55) && (srds_prtcl_s2 != 57)) {
fm_info_set_phy_address(FM1_DTSEC9,
slot_qsgmii_phyaddr[1][3]);
fm_info_set_phy_address(FM1_DTSEC10,
@@ -475,7 +565,7 @@ int board_eth_init(bd_t *bis)
fm_info_set_phy_address(FM1_DTSEC4, slot_qsgmii_phyaddr[2][3]);
fm_info_set_phy_address(FM1_DTSEC5, slot_qsgmii_phyaddr[1][0]);
fm_info_set_phy_address(FM1_DTSEC6, slot_qsgmii_phyaddr[1][1]);
- if ((srds_prtcl_s2 != 56) && (srds_prtcl_s2 != 57)) {
+ if ((srds_prtcl_s2 != 55) && (srds_prtcl_s2 != 57)) {
fm_info_set_phy_address(FM1_DTSEC9,
slot_qsgmii_phyaddr[1][2]);
fm_info_set_phy_address(FM1_DTSEC10,
@@ -490,7 +580,7 @@ int board_eth_init(bd_t *bis)
case 48:
fm_info_set_phy_address(FM1_DTSEC5, slot_qsgmii_phyaddr[1][0]);
fm_info_set_phy_address(FM1_DTSEC6, slot_qsgmii_phyaddr[1][1]);
- if ((srds_prtcl_s2 != 56) && (srds_prtcl_s2 != 57)) {
+ if ((srds_prtcl_s2 != 55) && (srds_prtcl_s2 != 57)) {
fm_info_set_phy_address(FM1_DTSEC10,
slot_qsgmii_phyaddr[1][2]);
fm_info_set_phy_address(FM1_DTSEC9,
@@ -567,13 +657,18 @@ int board_eth_init(bd_t *bis)
idx = i - FM1_10GEC1;
switch (fm_info_get_enet_if(i)) {
case PHY_INTERFACE_MODE_XGMII:
- lane = serdes_get_first_lane(FSL_SRDS_1,
+ if ((srds_prtcl_s2 == 55) || (srds_prtcl_s2 == 57)) {
+ /* A fake PHY address to make U-boot happy */
+ fm_info_set_phy_address(i, i);
+ } else {
+ lane = serdes_get_first_lane(FSL_SRDS_1,
XAUI_FM1_MAC9 + idx);
- if (lane < 0)
- break;
- slot = lane_to_slot_fsm1[lane];
- if (QIXIS_READ(present2) & (1 << (slot - 1)))
- fm_disable_port(i);
+ if (lane < 0)
+ break;
+ slot = lane_to_slot_fsm1[lane];
+ if (QIXIS_READ(present2) & (1 << (slot - 1)))
+ fm_disable_port(i);
+ }
mdio_mux[i] = EMI2;
fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
break;
@@ -666,7 +761,7 @@ int board_eth_init(bd_t *bis)
fm_info_set_phy_address(FM2_DTSEC3, slot_qsgmii_phyaddr[4][2]);
fm_info_set_phy_address(FM2_DTSEC4, slot_qsgmii_phyaddr[4][3]);
break;
- case 56:
+ case 55:
case 57:
/* XFI in Slot3, SGMII in Slot4 */
fm_info_set_phy_address(FM2_DTSEC1, slot_qsgmii_phyaddr[4][0]);
@@ -743,13 +838,18 @@ int board_eth_init(bd_t *bis)
idx = i - FM2_10GEC1;
switch (fm_info_get_enet_if(i)) {
case PHY_INTERFACE_MODE_XGMII:
- lane = serdes_get_first_lane(FSL_SRDS_2,
+ if ((srds_prtcl_s2 == 55) || (srds_prtcl_s2 == 57)) {
+ /* A fake PHY address to make U-boot happy */
+ fm_info_set_phy_address(i, i);
+ } else {
+ lane = serdes_get_first_lane(FSL_SRDS_2,
XAUI_FM2_MAC9 + idx);
- if (lane < 0)
- break;
- slot = lane_to_slot_fsm2[lane];
- if (QIXIS_READ(present2) & (1 << (slot - 1)))
- fm_disable_port(i);
+ if (lane < 0)
+ break;
+ slot = lane_to_slot_fsm2[lane];
+ if (QIXIS_READ(present2) & (1 << (slot - 1)))
+ fm_disable_port(i);
+ }
mdio_mux[i] = EMI2;
fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
break;
diff --git a/board/keymile/kmp204x/kmp204x.c b/board/keymile/kmp204x/kmp204x.c
index cd08379..4a73613 100644
--- a/board/keymile/kmp204x/kmp204x.c
+++ b/board/keymile/kmp204x/kmp204x.c
@@ -108,8 +108,8 @@ int board_early_init_f(void)
/* and enable WD on it */
qrio_wdmask(BFTIC4_RST, true);
- /* set the ZL30138's prstcfg to reset at power-up and unit reset only */
- qrio_prstcfg(ZL30158_RST, PRSTCFG_POWUP_UNIT_RST);
+ /* set the ZL30138's prstcfg to reset at power-up only */
+ qrio_prstcfg(ZL30158_RST, PRSTCFG_POWUP_RST);
/* and take it out of reset as soon as possible (needed for Hooper) */
qrio_prst(ZL30158_RST, false, false);
@@ -158,8 +158,8 @@ int misc_init_f(void)
qrio_prstcfg(ETH_FRONT_PHY_RST, PRSTCFG_POWUP_UNIT_CORE_RST);
qrio_prst(ETH_FRONT_PHY_RST, false, false);
- /* set the ZL30343 prstcfg to reset at power-up and unit reset only */
- qrio_prstcfg(ZL30343_RST, PRSTCFG_POWUP_UNIT_RST);
+ /* set the ZL30343 prstcfg to reset at power-up only */
+ qrio_prstcfg(ZL30343_RST, PRSTCFG_POWUP_RST);
/* and enable the WD on it */
qrio_wdmask(ZL30343_RST, true);
diff --git a/drivers/net/fm/t4240.c b/drivers/net/fm/t4240.c
index 1eacb22..ae5aca4 100644
--- a/drivers/net/fm/t4240.c
+++ b/drivers/net/fm/t4240.c
@@ -71,6 +71,11 @@ phy_interface_t fman_port_enet_if(enum fm_port port)
(is_serdes_configured(XFI_FM1_MAC10))))
return PHY_INTERFACE_MODE_XGMII;
+ if ((port == FM1_DTSEC9 || port == FM1_DTSEC10) &&
+ ((is_serdes_configured(XFI_FM1_MAC9)) ||
+ (is_serdes_configured(XFI_FM1_MAC10))))
+ return PHY_INTERFACE_MODE_XGMII;
+
if ((port == FM2_10GEC1 || port == FM2_10GEC2) &&
((is_serdes_configured(XAUI_FM2_MAC9)) ||
(is_serdes_configured(XAUI_FM2_MAC10)) ||
diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c
index be09a17..4358a91 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -333,7 +333,7 @@ int qe_upload_firmware(const struct qe_firmware *firmware)
/* Check the magic */
if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
(hdr->magic[2] != 'F')) {
- printf("Not a microcode\n");
+ printf("QE microcode not found\n");
#ifdef CONFIG_DEEP_SLEEP
setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_QE_DISABLE);
#endif
diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h
index ebee89a..a781ba3 100644
--- a/include/configs/T1040QDS.h
+++ b/include/configs/T1040QDS.h
@@ -416,6 +416,7 @@ unsigned long get_board_ddr_clk(void);
/* Video */
#define CONFIG_FSL_DIU_FB
#ifdef CONFIG_FSL_DIU_FB
+#define CONFIG_FSL_DIU_CH7301
#define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x180000)
#define CONFIG_VIDEO
#define CONFIG_CMD_BMP
diff --git a/include/configs/T104xRDB.h b/include/configs/T104xRDB.h
index c4bf0d6..0ee0ff2 100644
--- a/include/configs/T104xRDB.h
+++ b/include/configs/T104xRDB.h
@@ -32,7 +32,7 @@
#define CONFIG_SPL_I2C_SUPPORT
#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
#define CONFIG_FSL_LAW /* Use common FSL init code */
-#define CONFIG_SYS_TEXT_BASE 0x00201000
+#define CONFIG_SYS_TEXT_BASE 0x30001000
#define CONFIG_SPL_TEXT_BASE 0xFFFD8000
#define CONFIG_SPL_PAD_TO 0x40000
#define CONFIG_SPL_MAX_SIZE 0x28000
@@ -48,21 +48,21 @@
#ifdef CONFIG_NAND
#define CONFIG_SPL_NAND_SUPPORT
#define CONFIG_SYS_NAND_U_BOOT_SIZE (768 << 10)
-#define CONFIG_SYS_NAND_U_BOOT_DST 0x00200000
-#define CONFIG_SYS_NAND_U_BOOT_START 0x00200000
+#define CONFIG_SYS_NAND_U_BOOT_DST 0x30000000
+#define CONFIG_SYS_NAND_U_BOOT_START 0x30000000
#define CONFIG_SYS_NAND_U_BOOT_OFFS (256 << 10)
#define CONFIG_SYS_LDSCRIPT "arch/powerpc/cpu/mpc85xx/u-boot-nand.lds"
#define CONFIG_SPL_NAND_BOOT
#endif
#ifdef CONFIG_SPIFLASH
-#define CONFIG_RESET_VECTOR_ADDRESS 0x200FFC
+#define CONFIG_RESET_VECTOR_ADDRESS 0x30000FFC
#define CONFIG_SPL_SPI_SUPPORT
#define CONFIG_SPL_SPI_FLASH_SUPPORT
#define CONFIG_SPL_SPI_FLASH_MINIMAL
#define CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE (768 << 10)
-#define CONFIG_SYS_SPI_FLASH_U_BOOT_DST (0x00200000)
-#define CONFIG_SYS_SPI_FLASH_U_BOOT_START (0x00200000)
+#define CONFIG_SYS_SPI_FLASH_U_BOOT_DST (0x30000000)
+#define CONFIG_SYS_SPI_FLASH_U_BOOT_START (0x30000000)
#define CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS (256 << 10)
#define CONFIG_SYS_LDSCRIPT "arch/powerpc/cpu/mpc85xx/u-boot.lds"
#ifndef CONFIG_SPL_BUILD
@@ -72,12 +72,12 @@
#endif
#ifdef CONFIG_SDCARD
-#define CONFIG_RESET_VECTOR_ADDRESS 0x200FFC
+#define CONFIG_RESET_VECTOR_ADDRESS 0x30000FFC
#define CONFIG_SPL_MMC_SUPPORT
#define CONFIG_SPL_MMC_MINIMAL
#define CONFIG_SYS_MMC_U_BOOT_SIZE (768 << 10)
-#define CONFIG_SYS_MMC_U_BOOT_DST (0x00200000)
-#define CONFIG_SYS_MMC_U_BOOT_START (0x00200000)
+#define CONFIG_SYS_MMC_U_BOOT_DST (0x30000000)
+#define CONFIG_SYS_MMC_U_BOOT_START (0x30000000)
#define CONFIG_SYS_MMC_U_BOOT_OFFS (260 << 10)
#define CONFIG_SYS_LDSCRIPT "arch/powerpc/cpu/mpc85xx/u-boot.lds"
#ifndef CONFIG_SPL_BUILD
@@ -268,6 +268,9 @@
#define CPLD_LBMAP_DFLTBANK 0x40 /* BANK OR | BANK0 */
#define CPLD_LBMAP_RESET 0xFF
#define CPLD_LBMAP_SHIFT 0x03
+#ifdef CONFIG_T1042RDB_PI
+#define CPLD_DIU_SEL_DFP 0x80
+#endif
#define CONFIG_SYS_CPLD_BASE 0xffdf0000
#define CONFIG_SYS_CPLD_BASE_PHYS (0xf00000000ull | CONFIG_SYS_CPLD_BASE)
@@ -429,6 +432,24 @@
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+#ifdef CONFIG_T1042RDB_PI
+/* Video */
+#define CONFIG_FSL_DIU_FB
+
+#ifdef CONFIG_FSL_DIU_FB
+#define CONFIG_FSL_DIU_CH7301
+#define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x180000)
+#define CONFIG_VIDEO
+#define CONFIG_CMD_BMP
+#define CONFIG_CFB_CONSOLE
+#define CONFIG_CFB_CONSOLE_ANSI
+#define CONFIG_VIDEO_SW_CURSOR
+#define CONFIG_VGA_AS_SINGLE_DEVICE
+#define CONFIG_VIDEO_LOGO
+#define CONFIG_VIDEO_BMP_LOGO
+#endif
+#endif
+
/* pass open firmware flat tree */
#define CONFIG_OF_LIBFDT
#define CONFIG_OF_BOARD_SETUP
@@ -461,6 +482,10 @@
#endif
#ifdef CONFIG_T1042RDB_PI
+/* LDI/DVI Encoder for display */
+#define CONFIG_SYS_I2C_LDI_ADDR 0x38
+#define CONFIG_SYS_I2C_DVI_ADDR 0x75
+
/*
* RTC configuration
*/
@@ -772,11 +797,18 @@
#define RAMDISKFILE "t1040rdb_pi/ramdisk.uboot"
#endif
+#ifdef CONFIG_FSL_DIU_FB
+#define DIU_ENVIRONMENT "video-mode=fslfb:1024x768-32@60,monitor=dvi"
+#else
+#define DIU_ENVIRONMENT
+#endif
+
#define CONFIG_EXTRA_ENV_SETTINGS \
"hwconfig=fsl_ddr:bank_intlv=cs0_cs1;" \
"usb1:dr_mode=host,phy_type=" __stringify(__USB_PHY_TYPE) ";"\
"usb2:dr_mode=host,phy_type=" __stringify(__USB_PHY_TYPE) "\0"\
"netdev=eth0\0" \
+ "video-mode=" __stringify(DIU_ENVIRONMENT) "\0" \
"uboot=" __stringify(CONFIG_UBOOTPATH) "\0" \
"ubootaddr=" __stringify(CONFIG_SYS_TEXT_BASE) "\0" \
"tftpflash=tftpboot $loadaddr $uboot && " \
diff --git a/include/configs/km/km-powerpc.h b/include/configs/km/km-powerpc.h
index 763c5ba..eb85a74 100644
--- a/include/configs/km/km-powerpc.h
+++ b/include/configs/km/km-powerpc.h
@@ -59,8 +59,9 @@
#define CONFIG_KM_PHRAM 0x100000
/* resereved pram area at the end of memroy [hex] */
#define CONFIG_KM_RESERVED_PRAM 0x0
-/* enable protected RAM */
-#define CONFIG_PRAM 0
+/* set the default PRAM value to at least PNVRAM + PHRAM when pram env variable
+ * is not valid yet, which is the case for when u-boot copies itself to RAM */
+#define CONFIG_PRAM ((CONFIG_KM_PNVRAM + CONFIG_KM_PHRAM)>>10)
#define CONFIG_KM_CRAMFS_ADDR 0x800000
#define CONFIG_KM_KERNEL_ADDR 0x400000 /* 3968Kbytes */