diff options
Diffstat (limited to 'board/amcc/yucca')
| -rw-r--r-- | board/amcc/yucca/Makefile | 18 | ||||
| -rw-r--r-- | board/amcc/yucca/yucca.c | 104 | ||||
| -rw-r--r-- | board/amcc/yucca/yucca.h | 3 |
3 files changed, 108 insertions, 17 deletions
diff --git a/board/amcc/yucca/Makefile b/board/amcc/yucca/Makefile index c85fa31..9f42279 100644 --- a/board/amcc/yucca/Makefile +++ b/board/amcc/yucca/Makefile @@ -23,13 +23,17 @@ include $(TOPDIR)/config.mk -LIB = lib$(BOARD).a +LIB = $(obj)lib$(BOARD).a -OBJS = $(BOARD).o flash.o cmd_yucca.o +COBJS = $(BOARD).o flash.o cmd_yucca.o SOBJS = init.o -$(LIB): $(OBJS) $(SOBJS) - $(AR) crv $@ $(OBJS) +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) clean: rm -f $(SOBJS) $(OBJS) @@ -39,9 +43,9 @@ distclean: clean ######################################################################### -.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) - $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ +# defines $(obj).depend target +include $(SRCTREE)/rules.mk -sinclude .depend +sinclude $(obj).depend ######################################################################### diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c index af12839..e9b34dd 100644 --- a/board/amcc/yucca/yucca.c +++ b/board/amcc/yucca/yucca.c @@ -32,6 +32,10 @@ #include <asm-ppc/io.h> #include "yucca.h" +#include "../cpu/ppc4xx/440spe_pcie.h" + +#undef PCIE_ENDPOINT +/* #define PCIE_ENDPOINT 1 */ void fpga_init (void); @@ -562,10 +566,11 @@ int checkboard (void) static long int yucca_probe_for_dimms(void) { - long int dimm_installed[MAXDIMMS]; - long int dimm_num, probe_result; - long int dimms_found = 0; - uchar dimm_addr = IIC0_DIMM0_ADDR; + int dimm_installed[MAXDIMMS]; + int dimm_num, result; + int dimms_found = 0; + uchar dimm_addr = IIC0_DIMM0_ADDR; + uchar dimm_spd_data[MAX_SPD_BYTES]; for (dimm_num = 0; dimm_num < MAXDIMMS; dimm_num++) { /* check if there is a chip at the dimm address */ @@ -577,12 +582,28 @@ static long int yucca_probe_for_dimms(void) dimm_addr = IIC0_DIMM1_ADDR; break; } - probe_result = i2c_probe(dimm_addr); - if (probe_result == 0) { + result = i2c_probe(dimm_addr); + + memset(dimm_spd_data, 0, MAX_SPD_BYTES * sizeof(char)); + if (result == 0) { + /* read first byte of SPD data, if there is any data */ + result = i2c_read(dimm_addr, 0, 1, dimm_spd_data, 1); + + if (result == 0) { + result = dimm_spd_data[0]; + result = result > MAX_SPD_BYTES ? + MAX_SPD_BYTES : result; + result = i2c_read(dimm_addr, 0, 1, + dimm_spd_data, result); + } + } + + if ((result == 0) && + (dimm_spd_data[64] == MICRON_SPD_JEDEC_ID)) { dimm_installed[dimm_num] = TRUE; dimms_found++; - debug("DIMM slot %d: DDR2 SDRAM detected\n",dimm_num); + debug("DIMM slot %d: DDR2 SDRAM detected\n", dimm_num); } else { dimm_installed[dimm_num] = FALSE; debug("DIMM slot %d: Not populated or cannot sucessfully probe the DIMM\n", dimm_num); @@ -937,7 +958,6 @@ int is_pci_host(struct pci_controller *hose) return 1; } - int yucca_pcie_card_present(int port) { u16 reg; @@ -1012,7 +1032,56 @@ void yucca_setup_pcie_fpga_rootpoint(int port) out_be16((u16 *)FPGA_REG1C, reset_off | in_be16((u16 *)FPGA_REG1C)); } +/* + * For the given slot, set endpoint mode, send power to the slot, + * turn on the green LED and turn off the yellow LED, enable the clock + * .In end point mode reset bit is read only. + */ +void yucca_setup_pcie_fpga_endpoint(int port) +{ + u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint; + + switch(port) { + case 0: + rootpoint = FPGA_REG1C_PE0_ROOTPOINT; + endpoint = 0; + power = FPGA_REG1A_PE0_PWRON; + green_led = FPGA_REG1A_PE0_GLED; + clock = FPGA_REG1A_PE0_REFCLK_ENABLE; + yellow_led = FPGA_REG1A_PE0_YLED; + reset_off = FPGA_REG1C_PE0_PERST; + break; + case 1: + rootpoint = 0; + endpoint = FPGA_REG1C_PE1_ENDPOINT; + power = FPGA_REG1A_PE1_PWRON; + green_led = FPGA_REG1A_PE1_GLED; + clock = FPGA_REG1A_PE1_REFCLK_ENABLE; + yellow_led = FPGA_REG1A_PE1_YLED; + reset_off = FPGA_REG1C_PE1_PERST; + break; + case 2: + rootpoint = 0; + endpoint = FPGA_REG1C_PE2_ENDPOINT; + power = FPGA_REG1A_PE2_PWRON; + green_led = FPGA_REG1A_PE2_GLED; + clock = FPGA_REG1A_PE2_REFCLK_ENABLE; + yellow_led = FPGA_REG1A_PE2_YLED; + reset_off = FPGA_REG1C_PE2_PERST; + break; + + default: + return; + } + + out_be16((u16 *)FPGA_REG1A, + ~(power | clock | green_led) & + (yellow_led | in_be16((u16 *)FPGA_REG1A))); + out_be16((u16 *)FPGA_REG1C, + ~(rootpoint | reset_off) & + (endpoint | in_be16((u16 *)FPGA_REG1C))); +} static struct pci_controller pcie_hose[3] = {{0},{0},{0}}; @@ -1031,9 +1100,13 @@ void pcie_setup_hoses(void) if (!yucca_pcie_card_present(i)) continue; +#ifdef PCIE_ENDPOINT + yucca_setup_pcie_fpga_endpoint(i); + if (ppc440spe_init_pcie_endport(i)) { +#else yucca_setup_pcie_fpga_rootpoint(i); - if (ppc440spe_init_pcie_rootport(i)) { +#endif printf("PCIE%d: initialization failed\n", i); continue; } @@ -1053,8 +1126,19 @@ void pcie_setup_hoses(void) hose->region_count = 1; pci_register_hose(hose); - ppc440spe_setup_pcie(hose, i); +#ifdef PCIE_ENDPOINT + ppc440spe_setup_pcie_endpoint(hose, i); + /* + * Reson for no scanning is endpoint can not generate + * upstream configuration accesses. + */ +#else + ppc440spe_setup_pcie_rootpoint(hose, i); + /* + * Config access can only go down stream + */ hose->last_busno = pci_hose_scan(hose); +#endif } } #endif /* defined(CONFIG_PCI) */ diff --git a/board/amcc/yucca/yucca.h b/board/amcc/yucca/yucca.h index 66f7584..4d13021 100644 --- a/board/amcc/yucca/yucca.h +++ b/board/amcc/yucca/yucca.h @@ -60,6 +60,9 @@ extern "C" { #define NUM_TLB_ENTRIES 64 +/* MICRON SPD JEDEC ID Code (first byte) - SPD data byte [64] */ +#define MICRON_SPD_JEDEC_ID 0x2c + /*----------------------------------------------------------------------------+ | TLB specific defines. +----------------------------------------------------------------------------*/ |