diff options
| -rw-r--r-- | board/mpc8641hpcn/u-boot.lds | 2 | ||||
| -rw-r--r-- | cpu/mpc86xx/interrupts.c | 20 | ||||
| -rw-r--r-- | cpu/mpc86xx/spd_sdram.c | 4 | ||||
| -rw-r--r-- | include/asm-ppc/immap_86xx.h | 2 | ||||
| -rw-r--r-- | include/configs/MPC8641HPCN.h | 16 |
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) |