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-rw-r--r--board/mpc8641hpcn/u-boot.lds2
-rw-r--r--cpu/mpc86xx/interrupts.c20
-rw-r--r--cpu/mpc86xx/spd_sdram.c4
-rw-r--r--include/asm-ppc/immap_86xx.h2
-rw-r--r--include/configs/MPC8641HPCN.h16
5 files changed, 29 insertions, 15 deletions
diff --git a/board/mpc8641hpcn/u-boot.lds b/board/mpc8641hpcn/u-boot.lds
index b34de8e..13c1acf 100644
--- a/board/mpc8641hpcn/u-boot.lds
+++ b/board/mpc8641hpcn/u-boot.lds
@@ -120,10 +120,12 @@ SECTIONS
_edata = .;
PROVIDE (edata = .);
+ . = .;
__u_boot_cmd_start = .;
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
+ . = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
diff --git a/cpu/mpc86xx/interrupts.c b/cpu/mpc86xx/interrupts.c
index 1df6cdc..49820bb 100644
--- a/cpu/mpc86xx/interrupts.c
+++ b/cpu/mpc86xx/interrupts.c
@@ -80,6 +80,26 @@ int interrupt_init(void)
{
int ret;
+ /*
+ * The IRQ0 on Rev 2 is pulled high (low in Rev 1.x) to
+ * implement PEX10 errata. As INT is active high, it
+ * will cause core to take 0x500 interrupt.
+ *
+ * Due to the PIC's default pass through mode, as soon
+ * as interrupts are enabled (MSR[EE] = 1), an interrupt
+ * will be taken and u-boot will hang. This is due to a
+ * hardware change (per an errata fix) on new revisions
+ * of the board with Rev 2.x parts.
+ *
+ * Setting the PIC to mixed mode prevents the hang.
+ */
+ if ((get_svr() & 0xf0) == 0x20) {
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+ immr->im_pic.gcr = MPC86xx_PICGCR_RST;
+ while (immr->im_pic.gcr & MPC86xx_PICGCR_RST);
+ immr->im_pic.gcr = MPC86xx_PICGCR_MODE;
+ }
+
/* call cpu specific function from $(CPU)/interrupts.c */
ret = interrupt_init_cpu(&decrementer_count);
diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c
index b18e822..ac9ff81 100644
--- a/cpu/mpc86xx/spd_sdram.c
+++ b/cpu/mpc86xx/spd_sdram.c
@@ -284,9 +284,9 @@ spd_init(unsigned char i2c_address, unsigned int ddr_num,
}
/*
- * Adjust DDR II IO voltage biasing. It just makes it work.
+ * Adjust DDR II IO voltage biasing. Rev1 only
*/
- if (spd.mem_type == SPD_MEMTYPE_DDR2) {
+ if (((get_svr() & 0xf0) == 0x10) && (spd.mem_type == SPD_MEMTYPE_DDR2)) {
gur->ddrioovcr = (0
| 0x80000000 /* Enable */
| 0x10000000 /* VSEL to 1.8V */
diff --git a/include/asm-ppc/immap_86xx.h b/include/asm-ppc/immap_86xx.h
index a5552c4..0e3fc34 100644
--- a/include/asm-ppc/immap_86xx.h
+++ b/include/asm-ppc/immap_86xx.h
@@ -721,6 +721,8 @@ typedef struct ccsr_pic {
uint frr; /* 0x41000 - Feature Reporting Register */
char res10[28];
uint gcr; /* 0x41020 - Global Configuration Register */
+#define MPC86xx_PICGCR_RST 0x80000000
+#define MPC86xx_PICGCR_MODE 0x20000000
char res11[92];
uint vir; /* 0x41080 - Vendor Identification Register */
char res12[12];
diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h
index 246ac7f..bbe3505 100644
--- a/include/configs/MPC8641HPCN.h
+++ b/include/configs/MPC8641HPCN.h
@@ -212,7 +212,6 @@
#endif
#if defined(CFG_RAMBOOT)
-#undef CFG_FLASH_CFI_DRIVER
#undef CONFIG_SPD_EEPROM
#define CFG_SDRAM_SIZE 256
#endif
@@ -468,7 +467,6 @@
#define CFG_ENV_SECT_SIZE 0x40000 /* 256K(one sector) for env */
#define CFG_ENV_SIZE 0x2000
#else
- #define CFG_NO_FLASH 1 /* Flash is not usable now */
#define CFG_ENV_IS_NOWHERE 1 /* Store ENV in memory only */
#define CFG_ENV_ADDR (CFG_MONITOR_BASE - 0x1000)
#define CFG_ENV_SIZE 0x2000
@@ -486,21 +484,13 @@
| CFG_CMD_SCSI \
| CFG_CMD_EXT2) \
& \
- ~(CFG_CMD_ENV \
- | CFG_CMD_IMLS \
- | CFG_CMD_FLASH \
- | CFG_CMD_LOADS))
+ ~(CFG_CMD_ENV))
#else
#define CONFIG_COMMANDS ((CONFIG_CMD_DFL \
| CFG_CMD_PING \
- | CFG_CMD_I2C \
- | CFG_CMD_SCSI \
- | CGF_CMD_EXT2) \
+ | CFG_CMD_I2C) \
& \
- ~(CFG_CMD_ENV \
- | CFG_CMD_IMLS \
- | CFG_CMD_FLASH \
- | CFG_CMD_LOADS))
+ ~(CFG_CMD_ENV))
#endif
#else
#if defined(CONFIG_PCI)