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-rw-r--r--board/amcc/common/flash.c60
-rw-r--r--board/amcc/yucca/yucca.c105
-rw-r--r--board/amcc/yucca/yucca.h3
3 files changed, 129 insertions, 39 deletions
diff --git a/board/amcc/common/flash.c b/board/amcc/common/flash.c
index a0acbba..e6429ec 100644
--- a/board/amcc/common/flash.c
+++ b/board/amcc/common/flash.c
@@ -35,7 +35,7 @@
#include <ppc4xx.h>
#include <asm/processor.h>
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/*-----------------------------------------------------------------------
* Functions
@@ -76,7 +76,7 @@ void flash_print_info(flash_info_t * info)
case FLASH_MAN_SST:
printf("SST ");
break;
- case FLASH_MAN_MX:
+ case FLASH_MAN_MX:
printf ("MACRONIX ");
break;
default:
@@ -223,75 +223,75 @@ static ulong flash_get_size(vu_long * addr, flash_info_t * info)
return (0); /* no or unknown flash */
}
- value = addr2[1]; /* device ID */
+ value = addr2[1]; /* device ID */
DEBUGF("\nFLASH DEVICEID: %x\n", value);
switch (value) {
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
- info->size = 0x0080000; /* => 512 ko */
+ info->size = 0x0080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
- info->size = 0x0080000; /* => 512 ko */
+ info->size = 0x0080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
- info->size = 0x0080000; /* => 512 ko */
+ info->size = 0x0080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D:
info->flash_id += FLASH_AMD016;
info->sector_count = 32;
- info->size = 0x00200000;
- break; /* => 2 MB */
+ info->size = 0x00200000; /* => 2 MiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C:
info->flash_id += FLASH_AMDLV033C;
info->sector_count = 64;
- info->size = 0x00400000;
- break; /* => 4 MB */
+ info->size = 0x00400000; /* => 4 MiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T:
info->flash_id += FLASH_AM400T;
info->sector_count = 11;
- info->size = 0x00080000;
- break; /* => 0.5 MB */
+ info->size = 0x00080000; /* => 512 KiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B:
info->flash_id += FLASH_AM400B;
info->sector_count = 11;
- info->size = 0x00080000;
- break; /* => 0.5 MB */
+ info->size = 0x00080000; /* => 512 KiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T:
info->flash_id += FLASH_AM800T;
info->sector_count = 19;
- info->size = 0x00100000;
- break; /* => 1 MB */
+ info->size = 0x00100000; /* => 1 MiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B:
info->flash_id += FLASH_AM800B;
info->sector_count = 19;
- info->size = 0x00100000;
- break; /* => 1 MB */
+ info->size = 0x00100000; /* => 1 MiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T:
info->flash_id += FLASH_AM160T;
info->sector_count = 35;
- info->size = 0x00200000;
- break; /* => 2 MB */
+ info->size = 0x00200000; /* => 2 MiB */
+ break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B:
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
- info->size = 0x00200000;
- break; /* => 2 MB */
+ info->size = 0x00200000; /* => 2 MiB */
+ break;
default:
info->flash_id = FLASH_UNKNOWN;
@@ -306,7 +306,7 @@ static ulong flash_get_size(vu_long * addr, flash_info_t * info)
info->start[i] = base + (i * 0x00010000);
} else {
if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
+ /* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00004000;
info->start[2] = base + 0x00006000;
@@ -316,7 +316,7 @@ static ulong flash_get_size(vu_long * addr, flash_info_t * info)
base + (i * 0x00010000) - 0x00030000;
}
} else {
- /* set sector offsets for top boot block type */
+ /* set sector offsets for top boot block type */
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00004000;
info->start[i--] = base + info->size - 0x00006000;
@@ -666,7 +666,7 @@ static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
return (0); /* no or unknown flash */
}
- value = addr2[1]; /* device ID */
+ value = addr2[1]; /* device ID */
DEBUGF("\nFLASH DEVICEID: %x\n", value);
@@ -675,17 +675,17 @@ static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320T:
info->flash_id += FLASH_AM320T;
info->sector_count = 71;
- info->size = 0x00400000; break; /* => 4 MB */
+ info->size = 0x00400000; break; /* => 4 MiB */
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320B:
info->flash_id += FLASH_AM320B;
info->sector_count = 71;
- info->size = 0x00400000; break; /* => 4 MB */
+ info->size = 0x00400000; break; /* => 4 MiB */
case (CFG_FLASH_WORD_SIZE)STM_ID_29W320DT:
info->flash_id += FLASH_STMW320DT;
info->sector_count = 67;
- info->size = 0x00400000; break; /* => 4 MB */
+ info->size = 0x00400000; break; /* => 4 MiB */
case (CFG_FLASH_WORD_SIZE)MX_ID_LV320T:
info->flash_id += FLASH_MXLV320T;
@@ -743,7 +743,7 @@ static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
info->start[i] = base + i * 0x00010000;
} else {
if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
+ /* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00004000;
info->start[2] = base + 0x00006000;
@@ -753,7 +753,7 @@ static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
base + (i * 0x00010000) - 0x00030000;
}
} else {
- /* set sector offsets for top boot block type */
+ /* set sector offsets for top boot block type */
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00004000;
info->start[i--] = base + info->size - 0x00006000;
diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c
index af12839..cd17526 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);
@@ -1012,6 +1033,57 @@ 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 +1103,13 @@ 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 +1129,19 @@ 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.
+----------------------------------------------------------------------------*/
generated by cgit v1.1 at 2024-12-03 00:21:46 +0000