diff options
| -rw-r--r-- | Makefile | 5 | ||||
| -rw-r--r-- | board/amcc/acadia/acadia.c | 10 | ||||
| -rw-r--r-- | board/amcc/katmai/init.S | 2 | ||||
| -rw-r--r-- | board/icecube/icecube.c | 49 | ||||
| -rw-r--r-- | common/cmd_ide.c | 8 | ||||
| -rw-r--r-- | common/cmd_scsi.c | 2 | ||||
| -rw-r--r-- | cpu/ppc4xx/cpu.c | 30 | ||||
| -rw-r--r-- | cpu/ppc4xx/i2c.c | 4 | ||||
| -rw-r--r-- | doc/README.Lite5200B_low_power | 22 | ||||
| -rw-r--r-- | include/configs/katmai.h | 2 | ||||
| -rw-r--r-- | include/ppc405.h | 2 | ||||
| -rw-r--r-- | include/ppc440.h | 2 |
12 files changed, 120 insertions, 18 deletions
@@ -430,6 +430,7 @@ inka4x0_config: unconfig @$(MKCONFIG) inka4x0 ppc mpc5xxx inka4x0 lite5200b_config \ +lite5200b_PM_config \ lite5200b_LOWBOOT_config: unconfig @mkdir -p $(obj)include @mkdir -p $(obj)board/icecube @@ -438,6 +439,10 @@ lite5200b_LOWBOOT_config: unconfig @ echo "... DDR memory revision" @ echo "#define CONFIG_MPC5200" >>$(obj)include/config.h @ echo "#define CONFIG_LITE5200B" >>$(obj)include/config.h + @[ -z "$(findstring _PM_,$@)" ] || \ + { echo "#define CONFIG_LITE5200B_PM" >>$(obj)include/config.h ; \ + echo "... with power management (low-power mode) support" ; \ + } @[ -z "$(findstring LOWBOOT_,$@)" ] || \ { echo "TEXT_BASE = 0xFF000000" >$(obj)board/icecube/config.tmp ; \ echo "... with LOWBOOT configuration" ; \ diff --git a/board/amcc/acadia/acadia.c b/board/amcc/acadia/acadia.c index 7d0046a22f..baf598c677 100644 --- a/board/amcc/acadia/acadia.c +++ b/board/amcc/acadia/acadia.c @@ -26,7 +26,7 @@ extern void board_pll_init_f(void); -void liveoak_gpio_init(void) +static void acadia_gpio_init(void) { /* * GPIO0 setup (select GPIO or alternate function) @@ -55,8 +55,12 @@ int board_early_init_f(void) { unsigned int reg; - board_pll_init_f(); - liveoak_gpio_init(); + /* don't reinit PLL when booting via I2C bootstrap option */ + mfsdr(SDR_PINSTP, reg); + if (reg != 0xf0000000) + board_pll_init_f(); + + acadia_gpio_init(); /* USB Host core needs this bit set */ mfsdr(sdrultra1, reg); diff --git a/board/amcc/katmai/init.S b/board/amcc/katmai/init.S index 6b024eec40..5202ae694c 100644 --- a/board/amcc/katmai/init.S +++ b/board/amcc/katmai/init.S @@ -103,7 +103,7 @@ tlbtabB: tlbentry(CFG_PERIPHERAL_BASE, SZ_4K, 0xF0000000, 4, AC_R|AC_W|SA_G|SA_I) - tlbentry(CFG_ACE_BASE, SZ_1K, 0xE0000000, 4,AC_R|AC_W|SA_G|SA_I) + tlbentry(CFG_ACE_BASE, SZ_1K, CFG_ACE_BASE, 4,AC_R|AC_W|SA_G|SA_I) tlbentry(CFG_PCI_BASE, SZ_256M, 0x00000000, 0xC, AC_R|AC_W|SA_G|SA_I) tlbentry(CFG_PCI_MEMBASE, SZ_256M, 0x10000000, 0xC, AC_R|AC_W|SA_G|SA_I) diff --git a/board/icecube/icecube.c b/board/icecube/icecube.c index 700c9d9323..2960998434 100644 --- a/board/icecube/icecube.c +++ b/board/icecube/icecube.c @@ -42,6 +42,53 @@ #include "mt48lc16m16a2-75.h" # endif #endif + +#ifdef CONFIG_LITE5200B_PM +/* u-boot part of low-power mode implementation */ +#define SAVED_ADDR (*(void **)0x00000000) +#define PSC2_4 0x02 + +void lite5200b_wakeup(void) +{ + unsigned char wakeup_pin; + void (*linux_wakeup)(void); + + /* check PSC2_4, if it's down "QT" is signaling we have a wakeup + * from low power mode */ + *(vu_char *)MPC5XXX_WU_GPIO_ENABLE = PSC2_4; + __asm__ volatile ("sync"); + + wakeup_pin = *(vu_char *)MPC5XXX_WU_GPIO_DATA_I; + if (wakeup_pin & PSC2_4) + return; + + /* acknowledge to "QT" + * by holding pin at 1 for 10 uS */ + *(vu_char *)MPC5XXX_WU_GPIO_DIR = PSC2_4; + __asm__ volatile ("sync"); + *(vu_char *)MPC5XXX_WU_GPIO_DATA_O = PSC2_4; + __asm__ volatile ("sync"); + udelay(10); + + /* put ram out of self-refresh */ + *(vu_long *)MPC5XXX_SDRAM_CTRL |= 0x80000000; /* mode_en */ + __asm__ volatile ("sync"); + *(vu_long *)MPC5XXX_SDRAM_CTRL |= 0x50000000; /* cke ref_en */ + __asm__ volatile ("sync"); + *(vu_long *)MPC5XXX_SDRAM_CTRL &= ~0x80000000; /* !mode_en */ + __asm__ volatile ("sync"); + udelay(10); /* wait a bit */ + + /* jump back to linux kernel code */ + linux_wakeup = SAVED_ADDR; + printf("\n\nLooks like we just woke, transferring control to 0x%08lx\n", + linux_wakeup); + linux_wakeup(); +} +#else +#define lite5200b_wakeup() +#endif + #ifndef CFG_RAMBOOT static void sdram_start (int hi_addr) { @@ -208,6 +255,8 @@ long int initdram (int board_type) __asm__ volatile ("sync"); } + lite5200b_wakeup(); + return dramsize + dramsize2; } diff --git a/common/cmd_ide.c b/common/cmd_ide.c index b4119f3072..ce99a41ab7 100644 --- a/common/cmd_ide.c +++ b/common/cmd_ide.c @@ -423,7 +423,7 @@ int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) } part = simple_strtoul(++ep, NULL, 16); } - if (get_partition_info (ide_dev_desc, part, &info)) { + if (get_partition_info (&ide_dev_desc[dev], part, &info)) { SHOW_BOOT_PROGRESS (-1); return 1; } @@ -1344,7 +1344,7 @@ ulong ide_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer) ++n; ++blknr; - buffer += ATA_SECTORWORDS; + buffer += ATA_BLOCKSIZE; } IDE_READ_E: ide_led (DEVICE_LED(device), 0); /* LED off */ @@ -1428,7 +1428,7 @@ ulong ide_write (int device, lbaint_t blknr, ulong blkcnt, void *buffer) c = ide_inb (device, ATA_STATUS); /* clear IRQ */ ++n; ++blknr; - buffer += ATA_SECTORWORDS; + buffer += ATA_BLOCKSIZE; } WR_OUT: ide_led (DEVICE_LED(device), 0); /* LED off */ @@ -2052,7 +2052,7 @@ ulong atapi_read (int device, lbaint_t blknr, ulong blkcnt, void *buffer) n+=cnt; blkcnt-=cnt; blknr+=cnt; - buffer+=cnt*(ATAPI_READ_BLOCK_SIZE/4); /* ulong blocksize in ulong */ + buffer+=(cnt*ATAPI_READ_BLOCK_SIZE); } while (blkcnt > 0); return (n); } diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c index da36ed9e1d..00b84fad19 100644 --- a/common/cmd_scsi.c +++ b/common/cmd_scsi.c @@ -248,7 +248,7 @@ int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) } part = simple_strtoul(++ep, NULL, 16); } - if (get_partition_info (scsi_dev_desc, part, &info)) { + if (get_partition_info (&scsi_dev_desc[dev], part, &info)) { printf("error reading partinfo\n"); return 1; } diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c index 2d8740ccea..8e6bc84db0 100644 --- a/cpu/ppc4xx/cpu.c +++ b/cpu/ppc4xx/cpu.c @@ -125,6 +125,7 @@ int i2c_bootrom_enabled(void) return (val & SDR0_SDCS_SDD); #endif } +#endif #if defined(CONFIG_440GX) #define SDR0_PINSTP_SHIFT 29 @@ -178,16 +179,37 @@ static char *bootstrap_str[] = { }; #endif +#if defined(CONFIG_405EZ) +#define SDR0_PINSTP_SHIFT 28 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "SPI (fast)", + "NAND (512 page, 4 addr cycle)", + "I2C (Addr 0x50)", + "EBC (32 bits)", + "I2C (Addr 0x50)", + "NAND (2K page, 5 addr cycle)", + "I2C (Addr 0x50)", + "EBC (16 bits)", + "Reserved", + "NAND (2K page, 4 addr cycle)", + "I2C (Addr 0x50)", + "NAND (512 page, 3 addr cycle)", + "I2C (Addr 0x50)", + "SPI (slow)", + "I2C (Addr 0x50)", +}; +#endif + #if defined(SDR0_PINSTP_SHIFT) static int bootstrap_option(void) { unsigned long val; - mfsdr(sdr_pinstp, val); - return ((val & 0xe0000000) >> SDR0_PINSTP_SHIFT); + mfsdr(SDR_PINSTP, val); + return ((val & 0xf0000000) >> SDR0_PINSTP_SHIFT); } #endif /* SDR0_PINSTP_SHIFT */ -#endif #if defined(CONFIG_440) @@ -403,11 +425,11 @@ int checkcpu (void) #if defined(I2C_BOOTROM) printf (" I2C boot EEPROM %sabled\n", i2c_bootrom_enabled() ? "en" : "dis"); +#endif /* I2C_BOOTROM */ #if defined(SDR0_PINSTP_SHIFT) printf (" Bootstrap Option %c - ", (char)bootstrap_option() + 'A'); printf ("Boot ROM Location %s\n", bootstrap_str[bootstrap_option()]); #endif /* SDR0_PINSTP_SHIFT */ -#endif /* I2C_BOOTROM */ #if defined(CONFIG_PCI) printf (" Internal PCI arbiter %sabled", pci_arbiter_enabled() ? "en" : "dis"); diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c index 8f4da8621d..47c264e222 100644 --- a/cpu/ppc4xx/i2c.c +++ b/cpu/ppc4xx/i2c.c @@ -91,7 +91,6 @@ static void _i2c_bus_reset(void) void i2c_init(int speed, int slaveadd) { - sys_info_t sysInfo; unsigned long freqOPB; int val, divisor; int bus; @@ -124,8 +123,7 @@ void i2c_init(int speed, int slaveadd) /* Clock divide Register */ /* get OPB frequency */ - get_sys_info(&sysInfo); - freqOPB = sysInfo.freqPLB / sysInfo.pllOpbDiv; + freqOPB = get_OPB_freq(); /* set divisor according to freqOPB */ divisor = (freqOPB - 1) / 10000000; if (divisor == 0) diff --git a/doc/README.Lite5200B_low_power b/doc/README.Lite5200B_low_power new file mode 100644 index 0000000000..5b04fbba72 --- /dev/null +++ b/doc/README.Lite5200B_low_power @@ -0,0 +1,22 @@ +Lite5200B wakeup from low-power mode (CONFIG_LITE5200B_PM) +---------------------------------------------------------- + +Low-power mode as described in Lite5200B User's Manual, means that +with support of MC68HLC908QT1 microcontroller (refered to as QT), +everything but the SDRAM can be powered down. This brings +maximum power saving, while one can still restore previous state +quickly. + +Quick overview where U-Boot comes into the picture: +- OS saves device states +- OS saves wakeup handler address to physical 0x0, puts SDRAM into + self-refresh and signals to QT, it should power down the board +- / board is sleeping here / +- someone presses SW4 (connected to QT) +- U-Boot checks PSC2_4 pin, if QT drives it down, then we woke up, + so get SDRAM out of self-refresh and transfer control to OS + wakeup handler +- OS restores device states + +This was tested on Linux with USB and Ethernet in use. Adding +support for other devices is an OS issue. diff --git a/include/configs/katmai.h b/include/configs/katmai.h index 1606d0da17..7f55366ca5 100644 --- a/include/configs/katmai.h +++ b/include/configs/katmai.h @@ -78,7 +78,7 @@ #define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE #define CONFIG_PCI_SYS_MEM_SIZE (1024 * 1024 * 1024) -#define CFG_ACE_BASE 0xe0000000 /* Xilinx ACE controller - Compact Flash */ +#define CFG_ACE_BASE 0xfe000000 /* Xilinx ACE controller - Compact Flash */ /*----------------------------------------------------------------------- * Initial RAM & stack pointer (placed in internal SRAM) diff --git a/include/ppc405.h b/include/ppc405.h index 08f10d27b2..a2503a93d2 100644 --- a/include/ppc405.h +++ b/include/ppc405.h @@ -570,6 +570,8 @@ #define SDR_ICTX0_STAT 0x40000000 #define SDR_ICTX1_STAT 0x20000000 +#define SDR_PINSTP 0x40 + /****************************************************************************** * Control ******************************************************************************/ diff --git a/include/ppc440.h b/include/ppc440.h index 51e6b9b28c..bc1d7aad73 100644 --- a/include/ppc440.h +++ b/include/ppc440.h @@ -148,7 +148,7 @@ #define sdrcfgd (SDR_DCR_BASE+0x1) #define sdr_sdstp0 0x0020 /* */ #define sdr_sdstp1 0x0021 /* */ -#define sdr_pinstp 0x0040 +#define SDR_PINSTP 0x0040 #define sdr_sdcs 0x0060 #define sdr_ecid0 0x0080 #define sdr_ecid1 0x0081 |
