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| author | Wolfgang Denk <wd@denx.de> | 2007-04-18 16:06:05 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2007-04-18 16:06:05 +0200 |
| commit | 0f5642d7322740ad008a4c5eb0a131d64a6f7a0a (patch) | |
| tree | 129be3feb683cc3b54c259429c5b9fad75f5ffeb /board | |
| parent | ad4eb555671d97f96dc56eab55103b1f86874b01 (diff) | |
| parent | afc7e4c2a4729427bec672561ea1b3dbb5e8c0d3 (diff) | |
| download | blackbird-obmc-uboot-0f5642d7322740ad008a4c5eb0a131d64a6f7a0a.tar.gz blackbird-obmc-uboot-0f5642d7322740ad008a4c5eb0a131d64a6f7a0a.zip | |
Merge with /home/wd/git/u-boot/custodian/u-boot-ppc4xx
Diffstat (limited to 'board')
| -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 |
3 files changed, 57 insertions, 4 deletions
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; } |
