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-rw-r--r--arch/powerpc/cpu/mpc8xxx/fsl_lbc.c2
-rw-r--r--arch/powerpc/include/asm/fsl_lbc.h2
-rw-r--r--board/freescale/mpc8541cds/mpc8541cds.c2
-rw-r--r--board/freescale/mpc8555cds/mpc8555cds.c2
-rw-r--r--board/sbc8548/ddr.c77
-rw-r--r--board/sbc8548/law.c16
-rw-r--r--board/sbc8548/sbc8548.c111
-rw-r--r--board/sbc8548/tlb.c24
-rw-r--r--doc/README.sbc854879
-rw-r--r--include/configs/HWW1U1A.h36
-rw-r--r--include/configs/sbc8548.h151
11 files changed, 393 insertions, 109 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/fsl_lbc.c b/arch/powerpc/cpu/mpc8xxx/fsl_lbc.c
index 587576bac..023ac9ab3 100644
--- a/arch/powerpc/cpu/mpc8xxx/fsl_lbc.c
+++ b/arch/powerpc/cpu/mpc8xxx/fsl_lbc.c
@@ -28,6 +28,8 @@ void print_lbc_regs(void)
printf("BR%d\t0x%08X\tOR%d\t0x%08X\n",
i, get_lbc_br(i), i, get_lbc_or(i));
}
+ printf("LBCR\t0x%08X\tLCRR\t0x%08X\n",
+ get_lbc_lbcr(), get_lbc_lcrr());
}
void init_early_memctl_regs(void)
diff --git a/arch/powerpc/include/asm/fsl_lbc.h b/arch/powerpc/include/asm/fsl_lbc.h
index bf572b78e..2a23d84cb 100644
--- a/arch/powerpc/include/asm/fsl_lbc.h
+++ b/arch/powerpc/include/asm/fsl_lbc.h
@@ -475,6 +475,8 @@ extern void init_early_memctl_regs(void);
extern void upmconfig(uint upm, uint *table, uint size);
#define LBC_BASE_ADDR ((fsl_lbc_t *)CONFIG_SYS_LBC_ADDR)
+#define get_lbc_lcrr() (in_be32(&(LBC_BASE_ADDR)->lcrr))
+#define get_lbc_lbcr() (in_be32(&(LBC_BASE_ADDR)->lbcr))
#define get_lbc_br(i) (in_be32(&(LBC_BASE_ADDR)->bank[i].br))
#define get_lbc_or(i) (in_be32(&(LBC_BASE_ADDR)->bank[i].or))
#define set_lbc_br(i, v) (out_be32(&(LBC_BASE_ADDR)->bank[i].br, v))
diff --git a/board/freescale/mpc8541cds/mpc8541cds.c b/board/freescale/mpc8541cds/mpc8541cds.c
index d127137dd..532d32ac7 100644
--- a/board/freescale/mpc8541cds/mpc8541cds.c
+++ b/board/freescale/mpc8541cds/mpc8541cds.c
@@ -275,7 +275,7 @@ local_bus_init(void)
lbc->lcrr &= (~0x80000000); /* DLL Enabled */
} else {
- lbc->lcrr &= (~0x8000000); /* DLL Enabled */
+ lbc->lcrr &= (~0x80000000); /* DLL Enabled */
udelay(200);
/*
diff --git a/board/freescale/mpc8555cds/mpc8555cds.c b/board/freescale/mpc8555cds/mpc8555cds.c
index 48ede9840..3361614de 100644
--- a/board/freescale/mpc8555cds/mpc8555cds.c
+++ b/board/freescale/mpc8555cds/mpc8555cds.c
@@ -273,7 +273,7 @@ local_bus_init(void)
lbc->lcrr &= (~0x80000000); /* DLL Enabled */
} else {
- lbc->lcrr &= (~0x8000000); /* DLL Enabled */
+ lbc->lcrr &= (~0x80000000); /* DLL Enabled */
udelay(200);
/*
diff --git a/board/sbc8548/ddr.c b/board/sbc8548/ddr.c
index 996ffe206..45ec485c5 100644
--- a/board/sbc8548/ddr.c
+++ b/board/sbc8548/ddr.c
@@ -7,6 +7,7 @@
*/
#include <common.h>
+#include <i2c.h>
#include <asm/fsl_ddr_sdram.h>
#include <asm/fsl_ddr_dimm_params.h>
@@ -54,3 +55,79 @@ void fsl_ddr_board_options(memctl_options_t *popts,
*/
popts->half_strength_driver_enable = 0;
}
+
+#ifdef CONFIG_SPD_EEPROM
+/*
+ * Workaround for hardware errata. An i2c address conflict
+ * existed on earlier boards; the workaround moved the DDR
+ * SPD from 0x51 to 0x53. So we try and read 0x53 1st, and
+ * if that fails, then fall back to reading at 0x51.
+ */
+void get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
+{
+ int ret;
+
+#ifdef ALT_SPD_EEPROM_ADDRESS
+ if (i2c_address == SPD_EEPROM_ADDRESS) {
+ ret = i2c_read(ALT_SPD_EEPROM_ADDRESS, 0, 1, (uchar *)spd,
+ sizeof(generic_spd_eeprom_t));
+ if (ret == 0)
+ return; /* Good data at 0x53 */
+ memset(spd, 0, sizeof(generic_spd_eeprom_t));
+ }
+#endif
+ ret = i2c_read(i2c_address, 0, 1, (uchar *)spd,
+ sizeof(generic_spd_eeprom_t));
+ if (ret) {
+ printf("DDR: failed to read SPD from addr %u\n", i2c_address);
+ memset(spd, 0, sizeof(generic_spd_eeprom_t));
+ }
+}
+
+#else
+/*
+ * fixed_sdram init -- doesn't use serial presence detect.
+ * Assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
+ */
+phys_size_t fixed_sdram(void)
+{
+ volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
+
+ out_be32(&ddr->cs0_bnds, 0x0000007f);
+ out_be32(&ddr->cs1_bnds, 0x008000ff);
+ out_be32(&ddr->cs2_bnds, 0x00000000);
+ out_be32(&ddr->cs3_bnds, 0x00000000);
+
+ out_be32(&ddr->cs0_config, 0x80010101);
+ out_be32(&ddr->cs1_config, 0x80010101);
+ out_be32(&ddr->cs2_config, 0x00000000);
+ out_be32(&ddr->cs3_config, 0x00000000);
+
+ out_be32(&ddr->timing_cfg_3, 0x00000000);
+ out_be32(&ddr->timing_cfg_0, 0x00220802);
+ out_be32(&ddr->timing_cfg_1, 0x38377322);
+ out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
+
+ out_be32(&ddr->sdram_cfg, 0x4300C000);
+ out_be32(&ddr->sdram_cfg_2, 0x24401000);
+
+ out_be32(&ddr->sdram_mode, 0x23C00542);
+ out_be32(&ddr->sdram_mode_2, 0x00000000);
+
+ out_be32(&ddr->sdram_interval, 0x05080100);
+ out_be32(&ddr->sdram_md_cntl, 0x00000000);
+ out_be32(&ddr->sdram_data_init, 0x00000000);
+ out_be32(&ddr->sdram_clk_cntl, 0x03800000);
+ asm("sync;isync;msync");
+ udelay(500);
+
+ #ifdef CONFIG_DDR_ECC
+ /* Enable ECC checking */
+ out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
+ #else
+ out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
+ #endif
+
+ return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+}
+#endif
diff --git a/board/sbc8548/law.c b/board/sbc8548/law.c
index 5fa9db02f..322af76d6 100644
--- a/board/sbc8548/law.c
+++ b/board/sbc8548/law.c
@@ -36,22 +36,36 @@
* 0xe000_0000 0xe000_ffff CCSR 1M
* 0xe200_0000 0xe27f_ffff PCI1 IO 8M
* 0xe280_0000 0xe2ff_ffff PCIe IO 8M
+ * 0xec00_0000 0xefff_ffff FLASH (2nd bank) 64M
* 0xf000_0000 0xf7ff_ffff SDRAM 128M
* 0xf8b0_0000 0xf80f_ffff EEPROM 1M
- * 0xfb80_0000 0xff7f_ffff FLASH (2nd bank) 64M
* 0xff80_0000 0xffff_ffff FLASH (boot bank) 8M
*
+ * If swapped CS0/CS6 via JP12+SW2.8:
+ * 0xef80_0000 0xefff_ffff FLASH (2nd bank) 8M
+ * 0xfc00_0000 0xffff_ffff FLASH (boot bank) 64M
+ *
* Notes:
* CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
* If flash is 8M at default position (last 8M), no LAW needed.
*/
struct law_entry law_table[] = {
+#ifdef CONFIG_SYS_ALT_BOOT
+ SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_8M, LAW_TRGT_IF_LBC),
+#else
+ SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
+#endif
#ifndef CONFIG_SPD_EEPROM
SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR),
#endif
+#ifdef CONFIG_SYS_LBC_SDRAM_BASE
/* LBC window - maps 256M 0xf0000000 -> 0xffffffff */
SET_LAW(CONFIG_SYS_LBC_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
+#else
+ /* LBC window - maps 128M 0xf8000000 -> 0xffffffff */
+ SET_LAW(CONFIG_SYS_EPLD_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC),
+#endif
};
int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/sbc8548/sbc8548.c b/board/sbc8548/sbc8548.c
index 26095a545..371d07695 100644
--- a/board/sbc8548/sbc8548.c
+++ b/board/sbc8548/sbc8548.c
@@ -76,11 +76,15 @@ local_bus_init(void)
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
- uint clkdiv;
+ uint clkdiv, lbc_mhz, lcrr = CONFIG_SYS_LBC_LCRR;
sys_info_t sysinfo;
get_sys_info(&sysinfo);
- clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2;
+
+ lbc_mhz = sysinfo.freqLocalBus / 1000000;
+ clkdiv = sysinfo.freqSystemBus / sysinfo.freqLocalBus;
+
+ debug("LCRR=0x%x, CD=%d, MHz=%d\n", lcrr, clkdiv, lbc_mhz);
out_be32(&gur->lbiuiplldcr1, 0x00078080);
if (clkdiv == 16) {
@@ -91,10 +95,38 @@ local_bus_init(void)
out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
}
- setbits_be32(&lbc->lcrr, 0x00030000);
+ /*
+ * Local Bus Clock > 83.3 MHz. According to timing
+ * specifications set LCRR[EADC] to 2 delay cycles.
+ */
+ if (lbc_mhz > 83) {
+ lcrr &= ~LCRR_EADC;
+ lcrr |= LCRR_EADC_2;
+ }
+ /*
+ * According to MPC8548ERMAD Rev. 1.3, 13.3.1.16, 13-30
+ * disable PLL bypass for Local Bus Clock > 83 MHz.
+ */
+ if (lbc_mhz >= 66)
+ lcrr &= (~LCRR_DBYP); /* DLL Enabled */
+
+ else
+ lcrr |= LCRR_DBYP; /* DLL Bypass */
+
+ out_be32(&lbc->lcrr, lcrr);
asm("sync;isync;msync");
+ /*
+ * According to MPC8548ERMAD Rev.1.3 read back LCRR
+ * and terminate with isync
+ */
+ lcrr = in_be32(&lbc->lcrr);
+ asm ("isync;");
+
+ /* let DLL stabilize */
+ udelay(500);
+
out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
}
@@ -107,13 +139,14 @@ void lbc_sdram_init(void)
#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
uint idx;
+ const unsigned long size = CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024;
volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
- uint lsdmr_common;
+ uint *sdram_addr2 = (uint *)(CONFIG_SYS_LBC_SDRAM_BASE + size/2);
puts(" SDRAM: ");
- print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
+ print_size(size, "\n");
/*
* Setup SDRAM Base and Option Registers
@@ -131,47 +164,49 @@ void lbc_sdram_init(void)
asm("msync");
/*
- * MPC8548 uses "new" 15-16 style addressing.
- */
- lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
- lsdmr_common |= LSDMR_BSMA1516;
-
- /*
* Issue PRECHARGE ALL command.
*/
- out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_PCHALL);
+ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_PCHALL);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
+ *sdram_addr2 = 0xff;
+ ppcDcbf((unsigned long) sdram_addr2);
udelay(100);
/*
* Issue 8 AUTO REFRESH commands.
*/
for (idx = 0; idx < 8; idx++) {
- out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_ARFRSH);
+ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_ARFRSH);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
+ *sdram_addr2 = 0xff;
+ ppcDcbf((unsigned long) sdram_addr2);
udelay(100);
}
/*
* Issue 8 MODE-set command.
*/
- out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_MRW);
+ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_MRW);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
+ *sdram_addr2 = 0xff;
+ ppcDcbf((unsigned long) sdram_addr2);
udelay(100);
/*
- * Issue NORMAL OP command.
+ * Issue RFEN command.
*/
- out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_NORMAL);
+ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_RFEN);
asm("sync;msync");
*sdram_addr = 0xff;
ppcDcbf((unsigned long) sdram_addr);
+ *sdram_addr2 = 0xff;
+ ppcDcbf((unsigned long) sdram_addr2);
udelay(200); /* Overkill. Must wait > 200 bus cycles */
#endif /* enable SDRAM init */
@@ -216,50 +251,6 @@ testdram(void)
}
#endif
-#if !defined(CONFIG_SPD_EEPROM)
-#define CONFIG_SYS_DDR_CONTROL 0xc300c000
-/*************************************************************************
- * fixed_sdram init -- doesn't use serial presence detect.
- * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
- ************************************************************************/
-phys_size_t fixed_sdram(void)
-{
- volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
-
- out_be32(&ddr->cs0_bnds, 0x0000007f);
- out_be32(&ddr->cs1_bnds, 0x008000ff);
- out_be32(&ddr->cs2_bnds, 0x00000000);
- out_be32(&ddr->cs3_bnds, 0x00000000);
- out_be32(&ddr->cs0_config, 0x80010101);
- out_be32(&ddr->cs1_config, 0x80010101);
- out_be32(&ddr->cs2_config, 0x00000000);
- out_be32(&ddr->cs3_config, 0x00000000);
- out_be32(&ddr->timing_cfg_3, 0x00000000);
- out_be32(&ddr->timing_cfg_0, 0x00220802);
- out_be32(&ddr->timing_cfg_1, 0x38377322);
- out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
- out_be32(&ddr->sdram_cfg, 0x4300C000);
- out_be32(&ddr->sdram_cfg_2, 0x24401000);
- out_be32(&ddr->sdram_mode, 0x23C00542);
- out_be32(&ddr->sdram_mode_2, 0x00000000);
- out_be32(&ddr->sdram_interval, 0x05080100);
- out_be32(&ddr->sdram_md_cntl, 0x00000000);
- out_be32(&ddr->sdram_data_init, 0x00000000);
- out_be32(&ddr->sdram_clk_cntl, 0x03800000);
- asm("sync;isync;msync");
- udelay(500);
-
- #if defined (CONFIG_DDR_ECC)
- /* Enable ECC checking */
- out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
- #else
- out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
- #endif
-
- return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
-}
-#endif
-
#ifdef CONFIG_PCI1
static struct pci_controller pci1_hose;
#endif /* CONFIG_PCI1 */
diff --git a/board/sbc8548/tlb.c b/board/sbc8548/tlb.c
index bb4c05210..af927f165 100644
--- a/board/sbc8548/tlb.c
+++ b/board/sbc8548/tlb.c
@@ -46,12 +46,14 @@ struct fsl_e_tlb_entry tlb_table[] = {
/*
* TLB 0: 64M Non-cacheable, guarded
- * 0xfc000000 56M 8MB -> 64MB of user flash
+ * 0xfc000000 56M unused
* 0xff800000 8M boot FLASH
+ * .... or ....
+ * 0xfc000000 64M user flash
+ *
* Out of reset this entry is only 4K.
*/
- SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x800000,
- CONFIG_SYS_ALT_FLASH + 0x800000,
+ SET_TLB_ENTRY(1, 0xfc000000, 0xfc000000,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 0, BOOKE_PAGESZ_64M, 1),
@@ -74,6 +76,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 2, BOOKE_PAGESZ_64M, 1),
+#ifdef CONFIG_SYS_LBC_SDRAM_BASE
/*
* TLB 3: 64M Cacheable, non-guarded
* 0xf0000000 64M LBC SDRAM First half
@@ -90,6 +93,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
MAS3_SX|MAS3_SW|MAS3_SR, 0,
0, 4, BOOKE_PAGESZ_64M, 1),
+#endif
/*
* TLB 5: 16M Cacheable, non-guarded
@@ -102,9 +106,18 @@ struct fsl_e_tlb_entry tlb_table[] = {
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 5, BOOKE_PAGESZ_16M, 1),
+#ifndef CONFIG_SYS_ALT_BOOT
+ /*
+ * TLB 6: 64M Non-cacheable, guarded
+ * 0xec000000 64M 64MB user FLASH
+ */
+ SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 6, BOOKE_PAGESZ_64M, 1),
+#else
/*
* TLB 6: 4M Non-cacheable, guarded
- * 0xfb800000 4M 1st 4MB block of 64MB user FLASH
+ * 0xef800000 4M 1st 1/2 8MB soldered FLASH
*/
SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
@@ -112,12 +125,13 @@ struct fsl_e_tlb_entry tlb_table[] = {
/*
* TLB 7: 4M Non-cacheable, guarded
- * 0xfbc00000 4M 2nd 4MB block of 64MB user FLASH
+ * 0xefc00000 4M 2nd half 8MB soldered FLASH
*/
SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
CONFIG_SYS_ALT_FLASH + 0x400000,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 7, BOOKE_PAGESZ_4M, 1),
+#endif
};
diff --git a/doc/README.sbc8548 b/doc/README.sbc8548
index 6cbe12f1f..0f3f5432f 100644
--- a/doc/README.sbc8548
+++ b/doc/README.sbc8548
@@ -62,6 +62,43 @@ a 33MHz PCI configuration is currently untested.)
02.00.00 0x1148 0x9e00 Network controller 0x00
=>
+Memory Size and using SPD:
+==========================
+
+The default configuration uses hard coded memory configuration settings
+for 256MB of DDR2 @400MHz. It does not by default use the DDR2 SPD
+EEPROM data to read what memory is installed.
+
+There is a hardware errata, which causes the older local bus SDRAM
+SPD EEPROM to land at the same address as the DDR2 SPD EEPROM, so
+that the SPD data can not be read reliably. You can test if your
+board has the errata fix by running "i2c probe". If you see 0x53
+as a valid device, it has been fixed. If you only see 0x50, 0x51
+then your board does not have the fix.
+
+You can also visually inspect the board to see if this hardware
+fix has been applied:
+
+ 1) Remove R314 (RES-R0174-033, 1K, 0603). R314 is located on
+ the back of the PCB behind the DDR SDRAM SODIMM connector.
+ 2) Solder RES-R0174-033 (1K, 0603) resistor from R314 pin 2 pad
+ to R313 pin 2. Pin 2 for each resistor is the end of the
+ resistor closest to the CPU.
+
+Boards without the mod will have R314 and R313 in parallel, like "||".
+After the mod, they will be touching and form an "L" shape.
+
+If you want to upgrade to larger RAM size, you can simply enable
+ #define CONFIG_SPD_EEPROM
+ #define CONFIG_DDR_SPD
+in include/configs/sbc8548.h file. (The lines are already there
+but listed as #undef).
+
+If you did the i2c test, and your board does not have the errata
+fix, then you will have to physically remove the LBC 128MB DIMM
+from the board's socket to resolve the above i2c address overlap
+issue and allow SPD autodetection of RAM to work.
+
Updating U-boot with U-boot:
============================
@@ -86,6 +123,33 @@ The "md" steps in the above are just a precautionary step that allow
you to confirm the u-boot version that was downloaded, and then confirm
that it was copied to flash.
+The above assumes that you are using the default board settings which
+have u-boot in the 8MB flash, tied to /CS0.
+
+If you are running the default 8MB /CS0 settings but want to store an
+image in the SODIMM that is built with CONFIG_SYS_ALT_BOOT enabled,
+(as a backup, etc) then the steps will become:
+
+ tftp u-boot.bin
+ md 200000 10
+ protect off all
+ era eff00000 efffffff
+ cp.b 200000 eff00000 100000
+ md eff00000 10
+ protect on all
+
+Finally, if you are running the alternate 64MB /CS0 settings and want
+to update the in-use u-boot image, then (again with CONFIG_SYS_ALT_BOOT
+enabled) the steps will become:
+
+ tftp u-boot.bin
+ md 200000 10
+ protect off all
+ era fff00000 ffffffff
+ cp.b 200000 fff00000 100000
+ md fff00000 10
+ protect on all
+
Hardware Reference:
===================
@@ -100,6 +164,9 @@ Boot flash:
Sodimm flash:
intel V28F128Jx, 16384x8 (4 devices) at 0xfb80_0000
+ Note that this address reflects the default setting for
+ the JTAG debugging tools, but since the alignment is
+ rather inconvenient, u-boot puts it at 0xec00_0000.
Jumpers:
@@ -124,10 +191,9 @@ JP19 PCI mode PCI PCI-X
onto /CS0 and the SODIMM flash on /CS6 (default). When JP12
is jumpered parallel to the LBC-SDRAM, then /CS0 is for the
SODIMM flash and /CS6 is for the boot flash. Note that in this
-alternate setting, you also need to switch SW2.8 to ON. Currently
-u-boot doesn't support booting off the SODIMM in this alternate
-setting without manually altering BR0/OR0 and BR6/OR6 in the
-board config file appropriately.
+alternate setting, you also need to switch SW2.8 to ON.
+See the setting CONFIG_SYS_ALT_BOOT if you want to use this setting
+and boot u-boot from the 64MB SODIMM
Switches:
@@ -187,9 +253,12 @@ start end CS<n> width Desc.
0000_0000 0fff_ffff MCS0,1 64 DDR2 (256MB)
f000_0000 f7ff_ffff CS3,4 32 LB SDRAM (128MB)
f800_0000 f8b0_1fff CS5 - EPLD
-fb80_0000 ff7f_ffff CS6 32 SODIMM flash (64MB)
+fb80_0000 ff7f_ffff CS6 32 SODIMM flash (64MB) [*]
ff80_0000 ffff_ffff CS0 8 Boot flash (8MB)
+[*] fb80 represents the default programmed by WR JTAG register files,
+ but u-boot places the flash at either ec00 or fc00 based on JP12.
+
The EPLD on CS5 demuxes the following devices at the following offsets:
offset size width device
diff --git a/include/configs/HWW1U1A.h b/include/configs/HWW1U1A.h
index c7a835bbd..01597b965 100644
--- a/include/configs/HWW1U1A.h
+++ b/include/configs/HWW1U1A.h
@@ -240,7 +240,29 @@
/* Turn off RTC square-wave output to save battery */
#define CONFIG_SYS_RTC_DS1337_NOOSC
-/* PCA9554 is at I2C1-0x3f (I know it says "PCA953X", it's a PCA9554) */
+/*
+ * AT24C128N EEPROM at I2C0-0x53.
+ *
+ * That Atmel EEPROM has 128kbit of memory (16kByte) divided into 256 pages
+ * of 64 bytes per page. The chip uses 2-byte addresses and has a max write
+ * cycle time of 20ms according to the datasheet.
+ *
+ * NOTE: Our environment is stored on regular direct-attached FLASH, this
+ * chip is only used as a write-protected backup for certain key settings
+ * such as the serial# and macaddr values. (EG: "env import")
+ */
+#define CONFIG_CMD_EEPROM
+#define CONFIG_ENV_EEPROM_IS_ON_I2C
+#define CONFIG_SYS_I2C_EEPROM_ADDR 0x53
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 6 /* 1 << 6 == 64 byte pages */
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 21
+
+/*
+ * PCA9554 is at I2C1-0x3f (I know it says "PCA953X", it's a PCA9554). You
+ * must first select the I2C1 bus with "i2c dev 1" or the "pca953x" command
+ * will not be able to access the chip.
+ */
#define CONFIG_PCA953X
#define CONFIG_CMD_PCA953X
#define CONFIG_CMD_PCA953X_INFO
@@ -438,14 +460,20 @@ const char *hww1u1a_get_ps1(void);
/* Extra environment parameters */
#define CONFIG_EXTRA_ENV_SETTINGS \
- "preboot=setenv bootargs \"${bootargs} "CONFIG_BOOTARGS_DYNAMIC"\"\0" \
+ "ethprime=e1000#0\0" \
+ "ethrotate=no\0" \
+ "setbootargs=setenv bootargs " \
+ "\"${bootargs} "CONFIG_BOOTARGS_DYNAMIC"\"\0" \
"perf_mode=performance\0" \
"hwconfig=" "fsl_ddr:ctlr_intlv=bank,bank_intlv=cs0_cs1;" \
"usb1:dr_mode=host,phy_type=ulpi\0" \
- "flkernel=0xe8020000\0" \
+ "flkernel=0xe8000000\0" \
"flinitramfs=0xe8800000\0" \
"fldevicetree=0xeff20000\0" \
"flbootm=bootm ${flkernel} ${flinitramfs} ${fldevicetree}\0" \
- "flboot=run preboot; run flbootm\0"
+ "flboot=run preboot; run flbootm\0" \
+ "restore_eeprom=i2c dev 0 && " \
+ "eeprom read $loadaddr 0x0000 0x2000 && " \
+ "env import -c $loadaddr 0x2000\0"
#endif /* __CONFIG_H */
diff --git a/include/configs/sbc8548.h b/include/configs/sbc8548.h
index ba7612c5a..d87394c8d 100644
--- a/include/configs/sbc8548.h
+++ b/include/configs/sbc8548.h
@@ -57,9 +57,19 @@
#define CONFIG_MPC8548 1 /* MPC8548 specific */
#define CONFIG_SBC8548 1 /* SBC8548 board specific */
+/*
+ * If you want to boot from the SODIMM flash, instead of the soldered
+ * on flash, set this, and change JP12, SW2:8 accordingly.
+ */
+#undef CONFIG_SYS_ALT_BOOT
+
#ifndef CONFIG_SYS_TEXT_BASE
+#ifdef CONFIG_SYS_ALT_BOOT
+#define CONFIG_SYS_TEXT_BASE 0xfff00000
+#else
#define CONFIG_SYS_TEXT_BASE 0xfffa0000
#endif
+#endif
#undef CONFIG_RIO
@@ -109,9 +119,17 @@
/* DDR Setup */
#define CONFIG_FSL_DDR2
#undef CONFIG_FSL_DDR_INTERACTIVE
+#undef CONFIG_DDR_ECC /* only for ECC DDR module */
+/*
+ * A hardware errata caused the LBC SDRAM SPD and the DDR2 SPD
+ * to collide, meaning you couldn't reliably read either. So
+ * physically remove the LBC PC100 SDRAM module from the board
+ * before enabling the two SPD options below, or check that you
+ * have the hardware fix on your board via "i2c probe" and looking
+ * for a device at 0x53.
+ */
#undef CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */
#undef CONFIG_DDR_SPD
-#undef CONFIG_DDR_ECC /* only for ECC DDR module */
#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER /* DDR controller or DMA? */
#define CONFIG_MEM_INIT_VALUE 0xDeadBeef
@@ -124,14 +142,20 @@
#define CONFIG_DIMM_SLOTS_PER_CTLR 1
#define CONFIG_CHIP_SELECTS_PER_CTRL 2
-/* I2C addresses of SPD EEPROMs */
+/*
+ * The hardware fix for the I2C address collision puts the DDR
+ * SPD at 0x53, but if we are running on an older board w/o the
+ * fix, it will still be at 0x51. We check 0x53 1st.
+ */
#define SPD_EEPROM_ADDRESS 0x51 /* CTLR 0 DIMM 0 */
+#define ALT_SPD_EEPROM_ADDRESS 0x53 /* CTLR 0 DIMM 0 */
/*
* Make sure required options are set
*/
#ifndef CONFIG_SPD_EEPROM
#define CONFIG_SYS_SDRAM_SIZE 256 /* DDR is 256MB */
+ #define CONFIG_SYS_DDR_CONTROL 0xc300c000
#endif
#undef CONFIG_CLOCKS_IN_MHZ
@@ -139,28 +163,54 @@
/*
* FLASH on the Local Bus
* Two banks, one 8MB the other 64MB, using the CFI driver.
- * Boot from BR0/OR0 bank at 0xff80_0000
- * Alternate BR6/OR6 bank at 0xfb80_0000
+ * JP12+SW2.8 are used to swap CS0 and CS6, defaults are to have
+ * CS0 the 8MB boot flash, and CS6 the 64MB flash.
+ *
+ * Default:
+ * ec00_0000 efff_ffff 64MB SODIMM
+ * ff80_0000 ffff_ffff 8MB soldered flash
+ *
+ * Alternate:
+ * ef80_0000 efff_ffff 8MB soldered flash
+ * fc00_0000 ffff_ffff 64MB SODIMM
*
- * BR0:
+ * BR0_8M:
* Base address 0 = 0xff80_0000 = BR0[0:16] = 1111 1111 1000 0000 0
* Port Size = 8 bits = BRx[19:20] = 01
* Use GPCM = BRx[24:26] = 000
* Valid = BRx[31] = 1
*
- * 0 4 8 12 16 20 24 28
- * 1111 1111 1000 0000 0000 1000 0000 0001 = ff800801 BR0
- *
- * BR6:
- * Base address 6 = 0xfb80_0000 = BR6[0:16] = 1111 1011 1000 0000 0
+ * BR0_64M:
+ * Base address 0 = 0xfc00_0000 = BR0[0:16] = 1111 1100 0000 0000 0
* Port Size = 32 bits = BRx[19:20] = 11
+ *
+ * 0 4 8 12 16 20 24 28
+ * 1111 1111 1000 0000 0000 1000 0000 0001 = ff800801 BR0_8M
+ * 1111 1100 0000 0000 0001 1000 0000 0001 = fc001801 BR0_64M
+ */
+#define CONFIG_SYS_BR0_8M 0xff800801
+#define CONFIG_SYS_BR0_64M 0xfc001801
+
+/*
+ * BR6_8M:
+ * Base address 6 = 0xef80_0000 = BR6[0:16] = 1110 1111 1000 0000 0
+ * Port Size = 8 bits = BRx[19:20] = 01
* Use GPCM = BRx[24:26] = 000
* Valid = BRx[31] = 1
+
+ * BR6_64M:
+ * Base address 6 = 0xec00_0000 = BR6[0:16] = 1110 1100 0000 0000 0
+ * Port Size = 32 bits = BRx[19:20] = 11
*
* 0 4 8 12 16 20 24 28
- * 1111 1011 1000 0000 0001 1000 0000 0001 = fb801801 BR6
- *
- * OR0:
+ * 1110 1111 1000 0000 0000 1000 0000 0001 = ef800801 BR6_8M
+ * 1110 1100 0000 0000 0001 1000 0000 0001 = ec001801 BR6_64M
+ */
+#define CONFIG_SYS_BR6_8M 0xef800801
+#define CONFIG_SYS_BR6_64M 0xec001801
+
+/*
+ * OR0_8M:
* Addr Mask = 8M = OR1[0:16] = 1111 1111 1000 0000 0
* XAM = OR0[17:18] = 11
* CSNT = OR0[20] = 1
@@ -169,11 +219,20 @@
* TRLX = use relaxed timing = OR0[29] = 1
* EAD = use external address latch delay = OR0[31] = 1
*
- * 0 4 8 12 16 20 24 28
- * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65 OR0
+ * OR0_64M:
+ * Addr Mask = 64M = OR1[0:16] = 1111 1100 0000 0000 0
+ *
*
- * OR6:
- * Addr Mask = 64M = OR6[0:16] = 1111 1000 0000 0000 0
+ * 0 4 8 12 16 20 24 28
+ * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65 OR0_8M
+ * 1111 1100 0000 0000 0110 1110 0110 0101 = fc006e65 OR0_64M
+ */
+#define CONFIG_SYS_OR0_8M 0xff806e65
+#define CONFIG_SYS_OR0_64M 0xfc006e65
+
+/*
+ * OR6_8M:
+ * Addr Mask = 8M = OR6[0:16] = 1111 1111 1000 0000 0
* XAM = OR6[17:18] = 11
* CSNT = OR6[20] = 1
* ACS = half cycle delay = OR6[21:22] = 11
@@ -181,20 +240,37 @@
* TRLX = use relaxed timing = OR6[29] = 1
* EAD = use external address latch delay = OR6[31] = 1
*
+ * OR6_64M:
+ * Addr Mask = 64M = OR6[0:16] = 1111 1100 0000 0000 0
+ *
* 0 4 8 12 16 20 24 28
- * 1111 1000 0000 0000 0110 1110 0110 0101 = f8006e65 OR6
+ * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65 OR6_8M
+ * 1111 1100 0000 0000 0110 1110 0110 0101 = fc006e65 OR6_64M
*/
+#define CONFIG_SYS_OR6_8M 0xff806e65
+#define CONFIG_SYS_OR6_64M 0xfc006e65
+#ifndef CONFIG_SYS_ALT_BOOT /* JP12 in default position */
#define CONFIG_SYS_BOOT_BLOCK 0xff800000 /* start of 8MB Flash */
-#define CONFIG_SYS_ALT_FLASH 0xfb800000 /* 64MB "user" flash */
-#define CONFIG_SYS_FLASH_BASE CONFIG_SYS_BOOT_BLOCK /* start of FLASH 16M */
+#define CONFIG_SYS_ALT_FLASH 0xec000000 /* 64MB "user" flash */
-#define CONFIG_SYS_BR0_PRELIM 0xff800801
-#define CONFIG_SYS_BR6_PRELIM 0xfb801801
+#define CONFIG_SYS_BR0_PRELIM CONFIG_SYS_BR0_8M
+#define CONFIG_SYS_OR0_PRELIM CONFIG_SYS_OR0_8M
-#define CONFIG_SYS_OR0_PRELIM 0xff806e65
-#define CONFIG_SYS_OR6_PRELIM 0xf8006e65
+#define CONFIG_SYS_BR6_PRELIM CONFIG_SYS_BR6_64M
+#define CONFIG_SYS_OR6_PRELIM CONFIG_SYS_OR6_64M
+#else /* JP12 in alternate position */
+#define CONFIG_SYS_BOOT_BLOCK 0xfc000000 /* start 64MB Flash */
+#define CONFIG_SYS_ALT_FLASH 0xef800000 /* 8MB soldered flash */
+#define CONFIG_SYS_BR0_PRELIM CONFIG_SYS_BR0_64M
+#define CONFIG_SYS_OR0_PRELIM CONFIG_SYS_OR0_64M
+
+#define CONFIG_SYS_BR6_PRELIM CONFIG_SYS_BR6_8M
+#define CONFIG_SYS_OR6_PRELIM CONFIG_SYS_OR6_8M
+#endif
+
+#define CONFIG_SYS_FLASH_BASE CONFIG_SYS_BOOT_BLOCK
#define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE, \
CONFIG_SYS_ALT_FLASH}
#define CONFIG_SYS_MAX_FLASH_BANKS 2 /* number of banks */
@@ -221,6 +297,10 @@
/*
* SDRAM on the Local Bus (CS3 and CS4)
+ * Note that most boards have a hardware errata where both the
+ * LBC SDRAM and the DDR2 SDRAM decode at 0x51, making it impossible
+ * to use CONFIG_DDR_SPD unless you physically remove the LBC DIMM.
+ * A hardware workaround is also available, see README.sbc8548 file.
*/
#define CONFIG_SYS_LBC_SDRAM_BASE 0xf0000000 /* Localbus SDRAM */
#define CONFIG_SYS_LBC_SDRAM_SIZE 128 /* LBC SDRAM is 128MB */
@@ -300,19 +380,26 @@
/*
* Common settings for all Local Bus SDRAM commands.
- * At run time, either BSMA1516 (for CPU 1.1)
- * or BSMA1617 (for CPU 1.0) (old)
- * is OR'ed in too.
*/
#define CONFIG_SYS_LBC_LSDMR_COMMON ( LSDMR_RFCR16 \
- | LSDMR_PRETOACT7 \
- | LSDMR_ACTTORW7 \
+ | LSDMR_BSMA1516 \
+ | LSDMR_PRETOACT3 \
+ | LSDMR_ACTTORW3 \
+ | LSDMR_BUFCMD \
| LSDMR_BL8 \
- | LSDMR_WRC4 \
+ | LSDMR_WRC2 \
| LSDMR_CL3 \
- | LSDMR_RFEN \
)
+#define CONFIG_SYS_LBC_LSDMR_PCHALL \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_PCHALL)
+#define CONFIG_SYS_LBC_LSDMR_ARFRSH \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_ARFRSH)
+#define CONFIG_SYS_LBC_LSDMR_MRW \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_MRW)
+#define CONFIG_SYS_LBC_LSDMR_RFEN \
+ (CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_RFEN)
+
#define CONFIG_SYS_INIT_RAM_LOCK 1
#define CONFIG_SYS_INIT_RAM_ADDR 0xe4010000 /* Initial RAM address */
#define CONFIG_SYS_INIT_RAM_SIZE 0x4000 /* Size of used area in RAM */
@@ -330,7 +417,7 @@
* thing for MONITOR_LEN in both cases.
*/
#define CONFIG_SYS_MONITOR_LEN (~CONFIG_SYS_TEXT_BASE + 1)
-#define CONFIG_SYS_MALLOC_LEN (128 * 1024) /* Reserved for malloc */
+#define CONFIG_SYS_MALLOC_LEN (1024 * 1024) /* Reserved for malloc */
/* Serial Port */
#define CONFIG_CONS_INDEX 1
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 13:30:07 +0000