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-rw-r--r--cpu/ppc4xx/44x_spd_ddr2.c10
-rw-r--r--cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c74
-rw-r--r--cpu/ppc4xx/4xx_pci.c9
-rw-r--r--cpu/ppc4xx/4xx_pcie.c6
-rw-r--r--cpu/ppc4xx/bedbug_405.c4
-rw-r--r--cpu/ppc4xx/fdt.c24
-rw-r--r--cpu/ppc4xx/sdram.c55
7 files changed, 129 insertions, 53 deletions
diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c
index b40e4b151..33788cc90 100644
--- a/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/cpu/ppc4xx/44x_spd_ddr2.c
@@ -160,9 +160,6 @@
* SDRAM. This is because we only map the first 2GB on such systems, and therefore
* the ECC parity byte of the remaining area can't be written.
*/
-#ifndef CONFIG_MAX_MEM_MAPPED
-#define CONFIG_MAX_MEM_MAPPED ((phys_size_t)2 << 30)
-#endif
/*
* Board-specific Platform code can reimplement spd_ddr_init_hang () if needed
@@ -1104,11 +1101,8 @@ static void program_codt(unsigned long *dimm_populated,
* Set the SDRAM Controller On Die Termination Register
*-----------------------------------------------------------------*/
mfsdram(SDRAM_CODT, codt);
- codt |= (SDRAM_CODT_IO_NMODE
- & (~SDRAM_CODT_DQS_SINGLE_END
- & ~SDRAM_CODT_CKSE_SINGLE_END
- & ~SDRAM_CODT_FEEBBACK_RCV_SINGLE_END
- & ~SDRAM_CODT_FEEBBACK_DRV_SINGLE_END));
+ codt &= ~(SDRAM_CODT_DQS_SINGLE_END | SDRAM_CODT_CKSE_SINGLE_END);
+ codt |= SDRAM_CODT_IO_NMODE;
for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
if (dimm_populated[dimm_num] != SDRAM_NONE) {
diff --git a/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c b/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c
index 1e3e20df2..91bf582d6 100644
--- a/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c
+++ b/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c
@@ -61,6 +61,8 @@
#define NUMLOOPS 1 /* configure as you deem approporiate */
#define NUMMEMWORDS 16
+#define SDRAM_RDCC_RDSS_VAL(n) SDRAM_RDCC_RDSS_DECODE(ddr_rdss_opt(n))
+
/* Private Structure Definitions */
struct autocal_regs {
@@ -147,6 +149,13 @@ ulong __ddr_scan_option(ulong default_val)
}
ulong ddr_scan_option(ulong) __attribute__((weak, alias("__ddr_scan_option")));
+u32 __ddr_rdss_opt(u32 default_val)
+{
+ return default_val;
+}
+u32 ddr_rdss_opt(ulong) __attribute__((weak, alias("__ddr_rdss_opt")));
+
+
static u32 *get_membase(int bxcr_num)
{
ulong bxcf;
@@ -341,6 +350,7 @@ static int short_mem_test(u32 *base_address)
ppcDcbf((ulong)&(base_address[j]));
}
sync();
+ iobarrier_rw();
for (l = 0; l < NUMLOOPS; l++) {
for (j = 0; j < NUMMEMWORDS; j++) {
if (base_address[j] != test[i][j]) {
@@ -355,6 +365,7 @@ static int short_mem_test(u32 *base_address)
ppcDcbf((u32)&(base_address[j]));
} /* for (j = 0; j < NUMMEMWORDS; j++) */
sync();
+ iobarrier_rw();
} /* for (l=0; l<NUMLOOPS; l++) */
}
@@ -447,7 +458,8 @@ static u32 DQS_calibration_methodA(struct ddrautocal *cal)
* Program RDCC register
* Read sample cycle auto-update enable
*/
- mtsdram(SDRAM_RDCC, SDRAM_RDCC_RDSS_T1 | SDRAM_RDCC_RSAE_ENABLE);
+ mtsdram(SDRAM_RDCC,
+ ddr_rdss_opt(SDRAM_RDCC_RDSS_T2) | SDRAM_RDCC_RSAE_ENABLE);
#ifdef DEBUG
mfsdram(SDRAM_RDCC, temp);
@@ -633,7 +645,8 @@ static u32 program_DQS_calibration_methodB(struct ddrautocal *ddrcal)
* Program RDCC register
* Read sample cycle auto-update enable
*/
- mtsdram(SDRAM_RDCC, SDRAM_RDCC_RDSS_T2 | SDRAM_RDCC_RSAE_ENABLE);
+ mtsdram(SDRAM_RDCC,
+ ddr_rdss_opt(SDRAM_RDCC_RDSS_T2) | SDRAM_RDCC_RSAE_ENABLE);
#ifdef DEBUG
mfsdram(SDRAM_RDCC, temp);
@@ -1091,32 +1104,36 @@ u32 DQS_autocalibration(void)
* if no passing window was found, or is the
* size of the RFFD passing window.
*/
- if (result != 0) {
- tcal.autocal.flags = 1;
- debug("*** (%d)(%d) result passed window size: 0x%08x, "
- "rqfd = 0x%08x, rffd = 0x%08x, rdcc = 0x%08x\n",
- wdtr, clkp, result, ddrcal.rqfd,
- ddrcal.rffd, ddrcal.rdcc);
- /*
- * Save the SDRAM_WRDTR and SDRAM_CLKTR
- * settings for the largest returned
- * RFFD passing window size.
- */
- if (result > best_result) {
+ /*
+ * want the lowest Read Sample Cycle Select
+ */
+ val = SDRAM_RDCC_RDSS_DECODE(val);
+ debug("*** (%d) (%d) current_rdcc, best_rdcc\n",
+ val, best_rdcc);
+
+ if ((result != 0) &&
+ (val >= SDRAM_RDCC_RDSS_VAL(SDRAM_RDCC_RDSS_T2))) {
+ if (((result == best_result) && (val < best_rdcc)) ||
+ ((result > best_result) && (val <= best_rdcc))) {
+ tcal.autocal.flags = 1;
+ debug("*** (%d)(%d) result passed window "
+ "size: 0x%08x, rqfd = 0x%08x, "
+ "rffd = 0x%08x, rdcc = 0x%08x\n",
+ wdtr, clkp, result, ddrcal.rqfd,
+ ddrcal.rffd, ddrcal.rdcc);
+
/*
- * want the lowest Read Sample Cycle Select
+ * Save the SDRAM_WRDTR and SDRAM_CLKTR
+ * settings for the largest returned
+ * RFFD passing window size.
*/
- val = (val & SDRAM_RDCC_RDSS_MASK) >> 30;
- debug("*** (%d) (%d) current_rdcc, best_rdcc\n",
- val, best_rdcc);
- if (val <= best_rdcc) {
- best_rdcc = val;
- tcal.clocks.wrdtr = wdtr;
- tcal.clocks.clktr = clkp;
- tcal.clocks.rdcc = (val << 30);
- tcal.autocal.rqfd = ddrcal.rqfd;
- tcal.autocal.rffd = ddrcal.rffd;
- best_result = result;
+ best_rdcc = val;
+ tcal.clocks.wrdtr = wdtr;
+ tcal.clocks.clktr = clkp;
+ tcal.clocks.rdcc = SDRAM_RDCC_RDSS_ENCODE(val);
+ tcal.autocal.rqfd = ddrcal.rqfd;
+ tcal.autocal.rffd = ddrcal.rffd;
+ best_result = result;
if (verbose_lvl > 2) {
printf("** (%d)(%d) "
@@ -1152,9 +1169,8 @@ u32 DQS_autocalibration(void)
"loop FCSR: 0x%08x\n",
wdtr, clkp, val);
}
- } /* if (val <= best_rdcc) */
- } /* if (result >= best_result) */
- } /* if (result != 0) */
+ }
+ } /* if ((result != 0) && (val >= (ddr_rdss_opt()))) */
scan_list++;
} /* while ((scan_list->wrdtr != -1) && (scan_list->clktr != -1)) */
diff --git a/cpu/ppc4xx/4xx_pci.c b/cpu/ppc4xx/4xx_pci.c
index e8871fc45..6fd36dea3 100644
--- a/cpu/ppc4xx/4xx_pci.c
+++ b/cpu/ppc4xx/4xx_pci.c
@@ -179,7 +179,7 @@ void pci_405gp_init(struct pci_controller *hose)
ptmpcila[i], ptmla[i],
~(ptmms[i] & 0xfffff000) + 1,
PCI_REGION_MEM |
- PCI_REGION_MEMORY);
+ PCI_REGION_SYS_MEMORY);
}
/* PCI memory spaces */
@@ -504,7 +504,7 @@ int pci_440_init (struct pci_controller *hose)
CONFIG_PCI_SYS_MEM_BUS,
CONFIG_PCI_SYS_MEM_PHYS,
CONFIG_PCI_SYS_MEM_SIZE,
- PCI_REGION_MEM | PCI_REGION_MEMORY );
+ PCI_REGION_MEM | PCI_REGION_SYS_MEMORY );
#endif
hose->region_count = reg_num;
@@ -588,8 +588,9 @@ void pci_init_board(void)
int busno;
busno = pci_440_init (&ppc440_hose);
-#if defined(CONFIG_440SPE) || \
- defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#if (defined(CONFIG_440SPE) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
+ !defined(CONFIG_PCI_DISABLE_PCIE)
pcie_setup_hoses(busno + 1);
#endif
}
diff --git a/cpu/ppc4xx/4xx_pcie.c b/cpu/ppc4xx/4xx_pcie.c
index fd40d8abd..07fbb0e64 100644
--- a/cpu/ppc4xx/4xx_pcie.c
+++ b/cpu/ppc4xx/4xx_pcie.c
@@ -33,7 +33,7 @@
#if (defined(CONFIG_440SPE) || defined(CONFIG_405EX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
- defined(CONFIG_PCI)
+ defined(CONFIG_PCI) && !defined(CONFIG_PCI_DISABLE_PCIE)
#include <asm/4xx_pcie.h>
@@ -1028,10 +1028,10 @@ void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port)
#endif
}
- /* Set up 16GB inbound memory window at 0 */
+ /* Set up 4GB inbound memory window at 0 */
out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
- out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
+ out_le32(mbase + PECFG_BAR0HMPA, 0x7ffffff);
out_le32(mbase + PECFG_BAR0LMPA, 0);
out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
diff --git a/cpu/ppc4xx/bedbug_405.c b/cpu/ppc4xx/bedbug_405.c
index 5ef560791..ef11cb65e 100644
--- a/cpu/ppc4xx/bedbug_405.c
+++ b/cpu/ppc4xx/bedbug_405.c
@@ -71,7 +71,7 @@ void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
/* -------------------------------------------------- */
if (argc < 2) {
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return;
}
@@ -125,7 +125,7 @@ void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
/* Set a breakpoint at the address */
if (!isdigit (argv[1][0])) {
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return;
}
diff --git a/cpu/ppc4xx/fdt.c b/cpu/ppc4xx/fdt.c
index c55e1cfbb..ba5c120ad 100644
--- a/cpu/ppc4xx/fdt.c
+++ b/cpu/ppc4xx/fdt.c
@@ -113,6 +113,7 @@ void fdt_pcie_setup(void *blob)
void ft_cpu_setup(void *blob, bd_t *bd)
{
sys_info_t sys_info;
+ int off, ndepth = 0;
get_sys_info(&sys_info);
@@ -133,9 +134,28 @@ void ft_cpu_setup(void *blob, bd_t *bd)
fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
/*
- * Setup all baudrates for the UARTs
+ * Fixup all UART clocks for CPU internal UARTs
+ * (only these UARTs are definitely clocked by gd->uart_clk)
+ *
+ * These UARTs are direct childs of /plb/opb. This code
+ * does not touch any UARTs that are connected to the ebc.
*/
- do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1);
+ off = fdt_path_offset(blob, "/plb/opb");
+ while ((off = fdt_next_node(blob, off, &ndepth)) >= 0) {
+ /*
+ * process all sub nodes and stop when we are back
+ * at the starting depth
+ */
+ if (ndepth <= 0)
+ break;
+
+ /* only update direct childs */
+ if ((ndepth == 1) &&
+ (fdt_node_check_compatible(blob, off, "ns16550") == 0))
+ fdt_setprop(blob, off,
+ "clock-frequency",
+ (void*)&(gd->uart_clk), 4);
+ }
/*
* Fixup all ethernet nodes
diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c
index 6d5f8d65d..4365df987 100644
--- a/cpu/ppc4xx/sdram.c
+++ b/cpu/ppc4xx/sdram.c
@@ -259,6 +259,7 @@ phys_size_t initdram(int board_type)
#ifndef CONFIG_SYS_SDRAM_TABLE
sdram_conf_t mb0cf[] = {
{(256 << 20), 13, 0x000C4001}, /* 256MB mode 3, 13x10(4) */
+ {(128 << 20), 13, 0x000A4001}, /* 128MB mode 3, 13x10(4) */
{(64 << 20), 12, 0x00082001} /* 64MB mode 2, 12x9(4) */
};
#else
@@ -269,6 +270,18 @@ sdram_conf_t mb0cf[] = CONFIG_SYS_SDRAM_TABLE;
#define CONFIG_SYS_SDRAM0_TR0 0x41094012
#endif
+#ifndef CONFIG_SYS_SDRAM0_WDDCTR
+#define CONFIG_SYS_SDRAM0_WDDCTR 0x00000000 /* wrcp=0 dcd=0 */
+#endif
+
+#ifndef CONFIG_SYS_SDRAM0_RTR
+#define CONFIG_SYS_SDRAM0_RTR 0x04100000 /* 7.8us @ 133MHz PLB */
+#endif
+
+#ifndef CONFIG_SYS_SDRAM0_CFG0
+#define CONFIG_SYS_SDRAM0_CFG0 0x82000000 /* DCEN=1, PMUD=0, 64-bit */
+#endif
+
#define N_MB0CF (sizeof(mb0cf) / sizeof(mb0cf[0]))
#define NUM_TRIES 64
@@ -378,7 +391,7 @@ phys_size_t initdram(int board_type)
mtsdram(mem_uabba, 0x00000000); /* ubba=0 (default) */
mtsdram(mem_slio, 0x00000000); /* rdre=0 wrre=0 rarw=0 */
mtsdram(mem_devopt, 0x00000000); /* dll=0 ds=0 (normal) */
- mtsdram(mem_wddctr, 0x00000000); /* wrcp=0 dcd=0 */
+ mtsdram(mem_wddctr, CONFIG_SYS_SDRAM0_WDDCTR);
mtsdram(mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0 */
/*
@@ -387,31 +400,63 @@ phys_size_t initdram(int board_type)
mtsdram(mem_b0cr, mb0cf[i].reg);
mtsdram(mem_tr0, CONFIG_SYS_SDRAM0_TR0);
mtsdram(mem_tr1, 0x80800800); /* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/
- mtsdram(mem_rtr, 0x04100000); /* Interval 7.8µs @ 133MHz PLB */
+ mtsdram(mem_rtr, CONFIG_SYS_SDRAM0_RTR);
mtsdram(mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM*/
udelay(400); /* Delay 200 usecs (min) */
/*
* Enable the controller, then wait for DCEN to complete
*/
- mtsdram(mem_cfg0, 0x82000000); /* DCEN=1, PMUD=0, 64-bit */
+ mtsdram(mem_cfg0, CONFIG_SYS_SDRAM0_CFG0);
udelay(10000);
if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) {
+ phys_size_t size = mb0cf[i].size;
/*
* Optimize TR1 to current hardware environment
*/
sdram_tr1_set(0x00000000, &tr1_bank1);
mtsdram(mem_tr1, (tr1_bank1 | 0x80800800));
+
+ /*
+ * OK, size detected. Enable second bank if
+ * defined (assumes same type as bank 0)
+ */
+#ifdef CONFIG_SDRAM_BANK1
+ mtsdram(mem_cfg0, 0);
+ mtsdram(mem_b1cr, mb0cf[i].size | mb0cf[i].reg);
+ mtsdram(mem_cfg0, CONFIG_SYS_SDRAM0_CFG0);
+ udelay(10000);
+
+ /*
+ * Check if 2nd bank is really available.
+ * If the size not equal to the size of the first
+ * bank, then disable the 2nd bank completely.
+ */
+ if (get_ram_size((long *)mb0cf[i].size, mb0cf[i].size)
+ != mb0cf[i].size) {
+ mtsdram(mem_cfg0, 0);
+ mtsdram(mem_b1cr, 0);
+ mtsdram(mem_cfg0, CONFIG_SYS_SDRAM0_CFG0);
+ udelay(10000);
+ } else {
+ /*
+ * We have two identical banks, so the size
+ * is twice the bank size
+ */
+ size = 2 * size;
+ }
+#endif
+
#ifdef CONFIG_SDRAM_ECC
- ecc_init(0, mb0cf[i].size);
+ ecc_init(0, size);
#endif
/*
* OK, size detected -> all done
*/
- return mb0cf[i].size;
+ return size;
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-02 02:18:47 +0000