summaryrefslogtreecommitdiff
path: root/cpu/ppc4xx
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/ppc4xx')
-rw-r--r--cpu/ppc4xx/405gp_pci.c2
-rw-r--r--cpu/ppc4xx/44x_spd_ddr.c347
-rw-r--r--cpu/ppc4xx/44x_spd_ddr2.c11
-rw-r--r--cpu/ppc4xx/config.mk10
-rw-r--r--cpu/ppc4xx/cpu.c8
-rw-r--r--cpu/ppc4xx/gpio.c42
-rw-r--r--cpu/ppc4xx/ndfc.c74
-rw-r--r--cpu/ppc4xx/start.S671
-rw-r--r--cpu/ppc4xx/tlb.c77
-rw-r--r--cpu/ppc4xx/traps.c101
10 files changed, 770 insertions, 573 deletions
diff --git a/cpu/ppc4xx/405gp_pci.c b/cpu/ppc4xx/405gp_pci.c
index 7134355..8bf03e1 100644
--- a/cpu/ppc4xx/405gp_pci.c
+++ b/cpu/ppc4xx/405gp_pci.c
@@ -380,7 +380,7 @@ void pci_405gp_setup_vga(struct pci_controller *hose, pci_dev_t dev,
pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat);
}
-#if !(defined(CONFIG_PIP405) || defined (CONFIG_MIP405)) && !(defined (CONFIG_SOLIDCARD3))
+#if !(defined(CONFIG_PIP405) || defined (CONFIG_MIP405)) && !(defined (CONFIG_SC3))
/*
*As is these functs get called out of flash Not a horrible
diff --git a/cpu/ppc4xx/44x_spd_ddr.c b/cpu/ppc4xx/44x_spd_ddr.c
index 10b4c18..fe7bbab 100644
--- a/cpu/ppc4xx/44x_spd_ddr.c
+++ b/cpu/ppc4xx/44x_spd_ddr.c
@@ -20,7 +20,7 @@
* Jun Gu, Artesyn Technology, jung@artesyncp.com
* Support for AMCC 440 based on OpenBIOS draminit.c from IBM.
*
- * (C) Copyright 2005
+ * (C) Copyright 2005-2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* See file CREDITS for list of people who contributed to this
@@ -42,6 +42,11 @@
* MA 02111-1307 USA
*/
+/* define DEBUG for debugging output (obviously ;-)) */
+#if 0
+#define DEBUG
+#endif
+
#include <common.h>
#include <asm/processor.h>
#include <i2c.h>
@@ -246,25 +251,6 @@
#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */
#endif
-const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = {
- {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
- 0xFFFFFFFF, 0xFFFFFFFF},
- {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
- 0x00000000, 0x00000000},
- {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
- 0x55555555, 0x55555555},
- {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
- 0xAAAAAAAA, 0xAAAAAAAA},
- {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
- 0x5A5A5A5A, 0x5A5A5A5A},
- {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
- 0xA5A5A5A5, 0xA5A5A5A5},
- {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
- 0x55AA55AA, 0x55AA55AA},
- {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
- 0xAA55AA55, 0xAA55AA55}
-};
-
/* bank_parms is used to sort the bank sizes by descending order */
struct bank_param {
unsigned long cr;
@@ -276,48 +262,39 @@ typedef struct bank_param BANKPARMS;
#ifdef CFG_SIMULATE_SPD_EEPROM
extern unsigned char cfg_simulate_spd_eeprom[128];
#endif
-void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value);
-
-unsigned char spd_read(uchar chip, uint addr);
-
-void get_spd_info(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void check_mem_type
-(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void check_volt_type
-(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void program_cfg0(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void program_cfg1(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void program_rtr (unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void program_tr0 (unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
-
-void program_tr1 (void);
-
-void program_ecc (unsigned long num_bytes);
+void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
+
+static unsigned char spd_read(uchar chip, uint addr);
+static void get_spd_info(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void check_mem_type(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void check_volt_type(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void program_cfg0(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void program_cfg1(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void program_rtr(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void program_tr0(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
+static void program_tr1(void);
+
+#ifdef CONFIG_DDR_ECC
+static void program_ecc(unsigned long num_bytes);
+#endif
-unsigned
-long program_bxcr(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+static unsigned long program_bxcr(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks);
/*
* This function is reading data from the DIMM module EEPROM over the SPD bus
@@ -328,7 +305,6 @@ long program_bxcr(unsigned long* dimm_populated,
* BUG: Don't handle ECC memory
* BUG: A few values in the TR register is currently hardcoded
*/
-
long int spd_sdram(void) {
unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS;
unsigned long dimm_populated[sizeof(iic0_dimm_addr)];
@@ -397,7 +373,7 @@ long int spd_sdram(void) {
#ifdef CONFIG_PROG_SDRAM_TLB /* this define should eventually be removed */
/* and program tlb entries for this size (dynamic) */
- program_tlb(0, total_size, MY_TLB_WORD2_I_ENABLE);
+ program_tlb(0, 0, total_size, MY_TLB_WORD2_I_ENABLE);
#endif
/*
@@ -421,9 +397,8 @@ long int spd_sdram(void) {
*/
while (1) {
mfsdram(mem_mcsts, mcsts);
- if ((mcsts & SDRAM_MCSTS_MRSC) != 0) {
+ if ((mcsts & SDRAM_MCSTS_MRSC) != 0)
break;
- }
}
/*
@@ -431,14 +406,17 @@ long int spd_sdram(void) {
*/
program_tr1();
+#ifdef CONFIG_DDR_ECC
/*
- * if ECC is enabled, initialize parity bits
+ * If ecc is enabled, initialize the parity bits.
*/
+ program_ecc(total_size);
+#endif
return total_size;
}
-unsigned char spd_read(uchar chip, uint addr)
+static unsigned char spd_read(uchar chip, uint addr)
{
unsigned char data[2];
@@ -460,9 +438,9 @@ unsigned char spd_read(uchar chip, uint addr)
return 0;
}
-void get_spd_info(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void get_spd_info(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long dimm_found;
@@ -480,14 +458,10 @@ void get_spd_info(unsigned long* dimm_populated,
if ((num_of_bytes != 0) && (total_size != 0)) {
dimm_populated[dimm_num] = TRUE;
dimm_found = TRUE;
-#if 0
- printf("DIMM slot %lu: populated\n", dimm_num);
-#endif
+ debug("DIMM slot %lu: populated\n", dimm_num);
} else {
dimm_populated[dimm_num] = FALSE;
-#if 0
- printf("DIMM slot %lu: Not populated\n", dimm_num);
-#endif
+ debug("DIMM slot %lu: Not populated\n", dimm_num);
}
}
@@ -497,9 +471,9 @@ void get_spd_info(unsigned long* dimm_populated,
}
}
-void check_mem_type(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void check_mem_type(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned char dimm_type;
@@ -509,9 +483,7 @@ void check_mem_type(unsigned long* dimm_populated,
dimm_type = spd_read(iic0_dimm_addr[dimm_num], 2);
switch (dimm_type) {
case 7:
-#if 0
- printf("DIMM slot %lu: DDR SDRAM detected\n", dimm_num);
-#endif
+ debug("DIMM slot %lu: DDR SDRAM detected\n", dimm_num);
break;
default:
printf("ERROR: Unsupported DIMM detected in slot %lu.\n",
@@ -525,10 +497,9 @@ void check_mem_type(unsigned long* dimm_populated,
}
}
-
-void check_volt_type(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void check_volt_type(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long voltage_type;
@@ -541,18 +512,16 @@ void check_volt_type(unsigned long* dimm_populated,
dimm_num);
hang();
} else {
-#if 0
- printf("DIMM %lu voltage level supported.\n", dimm_num);
-#endif
+ debug("DIMM %lu voltage level supported.\n", dimm_num);
}
break;
}
}
}
-void program_cfg0(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void program_cfg0(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long cfg0;
@@ -640,9 +609,9 @@ void program_cfg0(unsigned long* dimm_populated,
mtsdram(mem_cfg0, cfg0);
}
-void program_cfg1(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void program_cfg1(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long cfg1;
mfsdram(mem_cfg1, cfg1);
@@ -658,9 +627,9 @@ void program_cfg1(unsigned long* dimm_populated,
mtsdram(mem_cfg1, cfg1);
}
-void program_rtr (unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void program_rtr(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long bus_period_x_10;
@@ -676,7 +645,6 @@ void program_rtr (unsigned long* dimm_populated,
get_sys_info(&sys_info);
bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
-
for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
if (dimm_populated[dimm_num] == TRUE) {
refresh_rate_type = 0x7F & spd_read(iic0_dimm_addr[dimm_num], 12);
@@ -719,9 +687,9 @@ void program_rtr (unsigned long* dimm_populated,
mtsdram(mem_rtr, sdram_rtr);
}
-void program_tr0 (unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static void program_tr0(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long tr0;
@@ -1001,13 +969,73 @@ void program_tr0 (unsigned long* dimm_populated,
break;
}
-#if 0
- printf("tr0: %x\n", tr0);
-#endif
+ debug("tr0: %x\n", tr0);
mtsdram(mem_tr0, tr0);
}
-void program_tr1 (void)
+static int short_mem_test(void)
+{
+ unsigned long i, j;
+ unsigned long bxcr_num;
+ unsigned long *membase;
+ const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = {
+ {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF},
+ {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000},
+ {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
+ 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555},
+ {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
+ 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA},
+ {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
+ 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A},
+ {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
+ 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5},
+ {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
+ 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA},
+ {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
+ 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55}};
+
+ for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
+ mtdcr(memcfga, mem_b0cr + (bxcr_num << 2));
+ if ((mfdcr(memcfgd) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
+ /* Bank is enabled */
+ membase = (unsigned long*)
+ (mfdcr(memcfgd) & SDRAM_BXCR_SDBA_MASK);
+
+ /*
+ * Run the short memory test
+ */
+ for (i = 0; i < NUMMEMTESTS; i++) {
+ for (j = 0; j < NUMMEMWORDS; j++) {
+ membase[j] = test[i][j];
+ ppcDcbf((unsigned long)&(membase[j]));
+ }
+
+ for (j = 0; j < NUMMEMWORDS; j++) {
+ if (membase[j] != test[i][j]) {
+ ppcDcbf((unsigned long)&(membase[j]));
+ return 0;
+ }
+ ppcDcbf((unsigned long)&(membase[j]));
+ }
+
+ if (j < NUMMEMWORDS)
+ return 0;
+ }
+
+ /*
+ * see if the rdclt value passed
+ */
+ if (i < NUMMEMTESTS)
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+static void program_tr1(void)
{
unsigned long tr0;
unsigned long tr1;
@@ -1015,8 +1043,7 @@ void program_tr1 (void)
unsigned long ecc_temp;
unsigned long dlycal;
unsigned long dly_val;
- unsigned long i, j, k;
- unsigned long bxcr_num;
+ unsigned long k;
unsigned long max_pass_length;
unsigned long current_pass_length;
unsigned long current_fail_length;
@@ -1029,7 +1056,6 @@ void program_tr1 (void)
unsigned char window_found;
unsigned char fail_found;
unsigned char pass_found;
- unsigned long * membase;
PPC440_SYS_INFO sys_info;
/*
@@ -1079,55 +1105,16 @@ void program_tr1 (void)
window_found = FALSE;
fail_found = FALSE;
pass_found = FALSE;
-#ifdef DEBUG
- printf("Starting memory test ");
-#endif
+ debug("Starting memory test ");
+
for (k = 0; k < NUMHALFCYCLES; k++) {
- for (rdclt = 0; rdclt < dly_val; rdclt++) {
+ for (rdclt = 0; rdclt < dly_val; rdclt++) {
/*
* Set the timing reg for the test.
*/
mtsdram(mem_tr1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt)));
- for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
- mtdcr(memcfga, mem_b0cr + (bxcr_num<<2));
- if ((mfdcr(memcfgd) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
- /* Bank is enabled */
- membase = (unsigned long*)
- (mfdcr(memcfgd) & SDRAM_BXCR_SDBA_MASK);
-
- /*
- * Run the short memory test
- */
- for (i = 0; i < NUMMEMTESTS; i++) {
- for (j = 0; j < NUMMEMWORDS; j++) {
- membase[j] = test[i][j];
- ppcDcbf((unsigned long)&(membase[j]));
- }
-
- for (j = 0; j < NUMMEMWORDS; j++) {
- if (membase[j] != test[i][j]) {
- ppcDcbf((unsigned long)&(membase[j]));
- break;
- }
- ppcDcbf((unsigned long)&(membase[j]));
- }
-
- if (j < NUMMEMWORDS) {
- break;
- }
- }
-
- /*
- * see if the rdclt value passed
- */
- if (i < NUMMEMTESTS) {
- break;
- }
- }
- }
-
- if (bxcr_num == MAXBXCR) {
+ if (short_mem_test()) {
if (fail_found == TRUE) {
pass_found = TRUE;
if (current_pass_length == 0) {
@@ -1157,9 +1144,8 @@ void program_tr1 (void)
}
}
}
-#ifdef DEBUG
- printf(".");
-#endif
+ debug(".");
+
if (window_found == TRUE) {
break;
}
@@ -1167,9 +1153,7 @@ void program_tr1 (void)
tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK;
rdclt_offset += dly_val;
}
-#ifdef DEBUG
- printf("\n");
-#endif
+ debug("\n");
/*
* make sure we find the window
@@ -1218,18 +1202,17 @@ void program_tr1 (void)
}
tr1 |= SDRAM_TR1_RDCT_ENCODE(rdclt_average);
-#if 0
- printf("tr1: %x\n", tr1);
-#endif
+ debug("tr1: %x\n", tr1);
+
/*
* program SDRAM Timing Register 1 TR1
*/
mtsdram(mem_tr1, tr1);
}
-unsigned long program_bxcr(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+static unsigned long program_bxcr(unsigned long *dimm_populated,
+ unsigned char *iic0_dimm_addr,
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long bank_base_addr;
@@ -1262,8 +1245,8 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
#ifdef CONFIG_BAMBOO
/*
* This next section is hardware dependent and must be programmed
- * to match the hardware. For bammboo, the following holds...
- * 1. SDRAM0_B0CR: Bank 0 of dimm 0 ctrl_bank_num : 0
+ * to match the hardware. For bamboo, the following holds...
+ * 1. SDRAM0_B0CR: Bank 0 of dimm 0 ctrl_bank_num : 0 (soldered onboard)
* 2. SDRAM0_B1CR: Bank 0 of dimm 1 ctrl_bank_num : 1
* 3. SDRAM0_B2CR: Bank 1 of dimm 1 ctrl_bank_num : 1
* 4. SDRAM0_B3CR: Bank 0 of dimm 2 ctrl_bank_num : 3
@@ -1273,10 +1256,12 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
ctrl_bank_num[1] = 1;
ctrl_bank_num[2] = 3;
#else
+ /*
+ * Ocotea, Ebony and the other IBM/AMCC eval boards have
+ * 2 DIMM slots with each max 2 banks
+ */
ctrl_bank_num[0] = 0;
- ctrl_bank_num[1] = 1;
- ctrl_bank_num[2] = 2;
- ctrl_bank_num[3] = 3;
+ ctrl_bank_num[1] = 2;
#endif
/*
@@ -1290,6 +1275,8 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
num_col_addr = spd_read(iic0_dimm_addr[dimm_num], 4);
num_banks = spd_read(iic0_dimm_addr[dimm_num], 5);
bank_size_id = spd_read(iic0_dimm_addr[dimm_num], 31);
+ debug("DIMM%d: row=%d col=%d banks=%d\n", dimm_num,
+ num_row_addr, num_col_addr, num_banks);
/*
* Set the SDRAM0_BxCR regs
@@ -1354,9 +1341,12 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
cr |= SDRAM_BXCR_SDBE;
for (i = 0; i < num_banks; i++) {
- bank_parms[ctrl_bank_num[dimm_num]+i+dimm_num].bank_size_bytes =
- (4 * 1024 * 1024) * bank_size_id;
- bank_parms[ctrl_bank_num[dimm_num]+i+dimm_num].cr = cr;
+ bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes =
+ (4 << 20) * bank_size_id;
+ bank_parms[ctrl_bank_num[dimm_num]+i].cr = cr;
+ debug("DIMM%d-bank %d (SDRAM0_B%dCR): bank_size_bytes=%d\n",
+ dimm_num, i, ctrl_bank_num[dimm_num]+i,
+ bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes);
}
}
}
@@ -1400,13 +1390,15 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
bank_parms[sorted_bank_num[bx_cr_num]].cr;
mtdcr(memcfgd, temp);
bank_base_addr += bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes;
+ debug("SDRAM0_B%dCR=0x%08lx\n", sorted_bank_num[bx_cr_num], temp);
}
}
return(bank_base_addr);
}
-void program_ecc (unsigned long num_bytes)
+#ifdef CONFIG_DDR_ECC
+static void program_ecc(unsigned long num_bytes)
{
unsigned long bank_base_addr;
unsigned long current_address;
@@ -1425,14 +1417,12 @@ void program_ecc (unsigned long num_bytes)
bank_base_addr = CFG_SDRAM_BASE;
if ((cfg0 & SDRAM_CFG0_MCHK_MASK) != SDRAM_CFG0_MCHK_NON) {
- mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) |
- SDRAM_CFG0_MCHK_GEN);
+ mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_GEN);
- if ((cfg0 & SDRAM_CFG0_DMWD_MASK) == SDRAM_CFG0_DMWD_32) {
+ if ((cfg0 & SDRAM_CFG0_DMWD_MASK) == SDRAM_CFG0_DMWD_32)
address_increment = 4;
- } else {
+ else
address_increment = 8;
- }
current_address = (unsigned long)(bank_base_addr);
end_address = (unsigned long)(bank_base_addr) + num_bytes;
@@ -1446,4 +1436,5 @@ void program_ecc (unsigned long num_bytes)
SDRAM_CFG0_MCHK_CHK);
}
}
+#endif /* CONFIG_DDR_ECC */
#endif /* CONFIG_SPD_EEPROM */
diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c
index 2ecd3e4..874cec0 100644
--- a/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/cpu/ppc4xx/44x_spd_ddr2.c
@@ -144,7 +144,7 @@ typedef enum ddr_cas_id {
* Prototypes
*-----------------------------------------------------------------------------*/
static unsigned long sdram_memsize(void);
-void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value);
+void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
static void get_spd_info(unsigned long *dimm_populated,
unsigned char *iic0_dimm_addr,
unsigned long num_dimm_banks);
@@ -465,7 +465,11 @@ long int initdram(int board_type)
* Set the SDRAM Clock Timing Register
*-----------------------------------------------------------------*/
mfsdram(SDRAM_CLKTR, val);
+#ifdef CFG_44x_DDR2_CKTR_180
+ mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_180_DEG_ADV);
+#else
mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_0_DEG);
+#endif
/*------------------------------------------------------------------
* Program the BxCF registers.
@@ -524,7 +528,7 @@ long int initdram(int board_type)
dram_size = sdram_memsize();
/* and program tlb entries for this size (dynamic) */
- program_tlb(0, dram_size, MY_TLB_WORD2_I_ENABLE);
+ program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE);
/*------------------------------------------------------------------
* DQS calibration.
@@ -1117,7 +1121,8 @@ static void program_codt(unsigned long *dimm_populated,
modt3 = 0x00000000;
}
if (total_rank == 4) {
- codt |= CALC_ODT_R(0) | CALC_ODT_R(1) | CALC_ODT_R(2) | CALC_ODT_R(3);
+ codt |= CALC_ODT_R(0) | CALC_ODT_R(1) |
+ CALC_ODT_R(2) | CALC_ODT_R(3);
modt0 = CALC_ODT_RW(2);
modt1 = 0x00000000;
modt2 = CALC_ODT_RW(0);
diff --git a/cpu/ppc4xx/config.mk b/cpu/ppc4xx/config.mk
index 119e061..e7fc3f63 100644
--- a/cpu/ppc4xx/config.mk
+++ b/cpu/ppc4xx/config.mk
@@ -22,5 +22,13 @@
#
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
+PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -ffixed-r29 -mstring -msoft-float
-PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -ffixed-r29 -mstring -Wa,-m405 -mcpu=405 -msoft-float
+cfg=$(shell grep configs $(TOPDIR)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
+is440=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg))
+
+ifneq (,$(findstring CONFIG_440,$(is440)))
+PLATFORM_CPPFLAGS += -Wa,-m440 -mcpu=440
+else
+PLATFORM_CPPFLAGS += -Wa,-m405 -mcpu=405
+endif
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index 8e6bc84..c07bc0c 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -139,6 +139,7 @@ static char *bootstrap_str[] = {
"Reserved",
"I2C (Addr 0x50)",
};
+static char bootstrap_char[] = { 'A', 'B', 'C', 'B', 'D', 'E', 'x', 'F' };
#endif
#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
@@ -149,6 +150,7 @@ static char *bootstrap_str[] = {
"I2C (Addr 0x54)",
"I2C (Addr 0x50)",
};
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D'};
#endif
#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
@@ -163,6 +165,7 @@ static char *bootstrap_str[] = {
"PCI",
"I2C (Addr 0x52)",
};
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
#endif
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
@@ -177,6 +180,7 @@ static char *bootstrap_str[] = {
"PCI",
"I2C (Addr 0x52)",
};
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
#endif
#if defined(CONFIG_405EZ)
@@ -199,6 +203,8 @@ static char *bootstrap_str[] = {
"SPI (slow)",
"I2C (Addr 0x50)",
};
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', \
+ 'I', 'x', 'K', 'L', 'M', 'N', 'O', 'P' };
#endif
#if defined(SDR0_PINSTP_SHIFT)
@@ -427,7 +433,7 @@ int checkcpu (void)
printf (" I2C boot EEPROM %sabled\n", i2c_bootrom_enabled() ? "en" : "dis");
#endif /* I2C_BOOTROM */
#if defined(SDR0_PINSTP_SHIFT)
- printf (" Bootstrap Option %c - ", (char)bootstrap_option() + 'A');
+ printf (" Bootstrap Option %c - ", bootstrap_char[bootstrap_option()]);
printf ("Boot ROM Location %s\n", bootstrap_str[bootstrap_option()]);
#endif /* SDR0_PINSTP_SHIFT */
diff --git a/cpu/ppc4xx/gpio.c b/cpu/ppc4xx/gpio.c
index dd84e58..5235203 100644
--- a/cpu/ppc4xx/gpio.c
+++ b/cpu/ppc4xx/gpio.c
@@ -103,6 +103,18 @@ void gpio_write_bit(int pin, int val)
out32(GPIO0_OR + offs, in32(GPIO0_OR + offs) & ~GPIO_VAL(pin));
}
+int gpio_read_out_bit(int pin)
+{
+ u32 offs = 0;
+
+ if (pin >= GPIO_MAX) {
+ offs = 0x100;
+ pin -= GPIO_MAX;
+ }
+
+ return (in32(GPIO0_OR + offs) & GPIO_VAL(pin) ? 1 : 0);
+}
+
#if defined(CFG_440_GPIO_TABLE)
void gpio_set_chip_configuration(void)
{
@@ -157,12 +169,38 @@ void gpio_set_chip_configuration(void)
switch (gpio_tab[gpio_core][i].alt_nb) {
case GPIO_SEL:
if (gpio_core == GPIO0) {
- reg = in32(GPIO0_TCR) | (0x80000000 >> (j));
+ /*
+ * Setup output value
+ * 1 -> high level
+ * 0 -> low level
+ * else -> don't touch
+ */
+ reg = in32(GPIO0_OR);
+ if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_1)
+ reg |= (0x80000000 >> (i));
+ else if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_0)
+ reg &= ~(0x80000000 >> (i));
+ out32(GPIO0_OR, reg);
+
+ reg = in32(GPIO0_TCR) | (0x80000000 >> (i));
out32(GPIO0_TCR, reg);
}
if (gpio_core == GPIO1) {
- reg = in32(GPIO1_TCR) | (0x80000000 >> (j));
+ /*
+ * Setup output value
+ * 1 -> high level
+ * 0 -> low level
+ * else -> don't touch
+ */
+ reg = in32(GPIO0_OR);
+ if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_1)
+ reg |= (0x80000000 >> (i));
+ else if (gpio_tab[gpio_core][i].out_val == GPIO_OUT_0)
+ reg &= ~(0x80000000 >> (i));
+ out32(GPIO0_OR, reg);
+
+ reg = in32(GPIO1_TCR) | (0x80000000 >> (i));
out32(GPIO1_TCR, reg);
}
diff --git a/cpu/ppc4xx/ndfc.c b/cpu/ppc4xx/ndfc.c
index 08dfc32..f63fc79 100644
--- a/cpu/ppc4xx/ndfc.c
+++ b/cpu/ppc4xx/ndfc.c
@@ -3,7 +3,7 @@
* Platform independend driver for NDFC (NanD Flash Controller)
* integrated into EP440 cores
*
- * (C) Copyright 2006
+ * (C) Copyright 2006-2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* Based on original work by
@@ -38,7 +38,9 @@
#include <nand.h>
#include <linux/mtd/ndfc.h>
+#include <linux/mtd/nand_ecc.h>
#include <asm/processor.h>
+#include <asm/io.h>
#include <ppc4xx.h>
static u8 hwctl = 0;
@@ -70,11 +72,11 @@ static void ndfc_write_byte(struct mtd_info *mtdinfo, u_char byte)
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
if (hwctl & 0x1)
- out8(base + NDFC_CMD, byte);
+ out_8((u8 *)(base + NDFC_CMD), byte);
else if (hwctl & 0x2)
- out8(base + NDFC_ALE, byte);
+ out_8((u8 *)(base + NDFC_ALE), byte);
else
- out8(base + NDFC_DATA, byte);
+ out_8((u8 *)(base + NDFC_DATA), byte);
}
static u_char ndfc_read_byte(struct mtd_info *mtdinfo)
@@ -82,7 +84,7 @@ static u_char ndfc_read_byte(struct mtd_info *mtdinfo)
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
- return (in8(base + NDFC_DATA));
+ return (in_8((u8 *)(base + NDFC_DATA)));
}
static int ndfc_dev_ready(struct mtd_info *mtdinfo)
@@ -90,17 +92,41 @@ static int ndfc_dev_ready(struct mtd_info *mtdinfo)
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
- while (!(in32(base + NDFC_STAT) & NDFC_STAT_IS_READY))
+ while (!(in_be32((u32 *)(base + NDFC_STAT)) & NDFC_STAT_IS_READY))
;
return 1;
}
-#ifndef CONFIG_NAND_SPL
-/*
- * Don't use these speedup functions in NAND boot image, since the image
- * has to fit into 4kByte.
- */
+static void ndfc_enable_hwecc(struct mtd_info *mtdinfo, int mode)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
+ u32 ccr;
+
+ ccr = in_be32((u32 *)(base + NDFC_CCR));
+ ccr |= NDFC_CCR_RESET_ECC;
+ out_be32((u32 *)(base + NDFC_CCR), ccr);
+}
+
+static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
+ const u_char *dat, u_char *ecc_code)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
+ u32 ecc;
+ u8 *p = (u8 *)&ecc;
+
+ ecc = in_be32((u32 *)(base + NDFC_ECC));
+
+ /* The NDFC uses Smart Media (SMC) bytes order
+ */
+ ecc_code[0] = p[2];
+ ecc_code[1] = p[1];
+ ecc_code[2] = p[3];
+
+ return 0;
+}
/*
* Speedups for buffer read/write/verify
@@ -116,9 +142,14 @@ static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
uint32_t *p = (uint32_t *) buf;
for (;len > 0; len -= 4)
- *p++ = in32(base + NDFC_DATA);
+ *p++ = in_be32((u32 *)(base + NDFC_DATA));
}
+#ifndef CONFIG_NAND_SPL
+/*
+ * Don't use these speedup functions in NAND boot image, since the image
+ * has to fit into 4kByte.
+ */
static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
{
struct nand_chip *this = mtdinfo->priv;
@@ -126,7 +157,7 @@ static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
uint32_t *p = (uint32_t *) buf;
for (; len > 0; len -= 4)
- out32(base + NDFC_DATA, *p++);
+ out_be32((u32 *)(base + NDFC_DATA), *p++);
}
static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
@@ -136,7 +167,7 @@ static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
uint32_t *p = (uint32_t *) buf;
for (; len > 0; len -= 4)
- if (*p++ != in32(base + NDFC_DATA))
+ if (*p++ != in_be32((u32 *)(base + NDFC_DATA)))
return -1;
return 0;
@@ -153,8 +184,8 @@ void board_nand_select_device(struct nand_chip *nand, int chip)
ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc;
/* Set NandFlash Core Configuration Register */
- /* 1col x 2 rows */
- out32(base + NDFC_CCR, 0x00000000 | (cs << 24));
+ /* 1 col x 2 rows */
+ out_be32((u32 *)(base + NDFC_CCR), 0x00000000 | (cs << 24));
}
int board_nand_init(struct nand_chip *nand)
@@ -162,16 +193,19 @@ int board_nand_init(struct nand_chip *nand)
int cs = (ulong)nand->IO_ADDR_W & 0x00000003;
ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc;
- nand->eccmode = NAND_ECC_SOFT;
-
nand->hwcontrol = ndfc_hwcontrol;
nand->read_byte = ndfc_read_byte;
+ nand->read_buf = ndfc_read_buf;
nand->write_byte = ndfc_write_byte;
nand->dev_ready = ndfc_dev_ready;
+ nand->eccmode = NAND_ECC_HW3_256;
+ nand->enable_hwecc = ndfc_enable_hwecc;
+ nand->calculate_ecc = ndfc_calculate_ecc;
+ nand->correct_data = nand_correct_data;
+
#ifndef CONFIG_NAND_SPL
nand->write_buf = ndfc_write_buf;
- nand->read_buf = ndfc_read_buf;
nand->verify_buf = ndfc_verify_buf;
#else
/*
@@ -187,7 +221,7 @@ int board_nand_init(struct nand_chip *nand)
* Select required NAND chip in NDFC
*/
board_nand_select_device(nand, cs);
- out32(base + NDFC_BCFG0 + (cs << 2), 0x80002222);
+ out_be32((u32 *)(base + NDFC_BCFG0 + (cs << 2)), 0x80002222);
return 0;
}
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 85660b4..a46197d 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -22,26 +22,27 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
-/*------------------------------------------------------------------------------+ */
-/* */
-/* This source code has been made available to you by IBM on an AS-IS */
-/* basis. Anyone receiving this source is licensed under IBM */
-/* copyrights to use it in any way he or she deems fit, including */
-/* copying it, modifying it, compiling it, and redistributing it either */
-/* with or without modifications. No license under IBM patents or */
-/* patent applications is to be implied by the copyright license. */
-/* */
-/* Any user of this software should understand that IBM cannot provide */
-/* technical support for this software and will not be responsible for */
-/* any consequences resulting from the use of this software. */
-/* */
-/* Any person who transfers this source code or any derivative work */
-/* must include the IBM copyright notice, this paragraph, and the */
-/* preceding two paragraphs in the transferred software. */
-/* */
-/* COPYRIGHT I B M CORPORATION 1995 */
-/* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M */
-/*------------------------------------------------------------------------------- */
+/*------------------------------------------------------------------------------+
+ *
+ * This source code has been made available to you by IBM on an AS-IS
+ * basis. Anyone receiving this source is licensed under IBM
+ * copyrights to use it in any way he or she deems fit, including
+ * copying it, modifying it, compiling it, and redistributing it either
+ * with or without modifications. No license under IBM patents or
+ * patent applications is to be implied by the copyright license.
+ *
+ * Any user of this software should understand that IBM cannot provide
+ * technical support for this software and will not be responsible for
+ * any consequences resulting from the use of this software.
+ *
+ * Any person who transfers this source code or any derivative work
+ * must include the IBM copyright notice, this paragraph, and the
+ * preceding two paragraphs in the transferred software.
+ *
+ * COPYRIGHT I B M CORPORATION 1995
+ * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ *-------------------------------------------------------------------------------
+ */
/* U-Boot - Startup Code for AMCC 4xx PowerPC based Embedded Boards
*
@@ -110,6 +111,13 @@
# endif
#endif /* CFG_INIT_DCACHE_CS */
+#define function_prolog(func_name) .text; \
+ .align 2; \
+ .globl func_name; \
+ func_name:
+#define function_epilog(func_name) .type func_name,@function; \
+ .size func_name,.-func_name
+
/* We don't want the MMU yet.
*/
#undef MSR_KERNEL
@@ -148,7 +156,9 @@
* NAND U-Boot image is started from offset 0
*/
.text
+#if defined(CONFIG_440)
bl reconfig_tlb0
+#endif
GET_GOT
bl cpu_init_f /* run low-level CPU init code (from Flash) */
bl board_init_f
@@ -285,11 +295,13 @@ skip_debug_init:
mtspr ivor7,r1 /* Floating point unavailable */
li r1,0x0c00
mtspr ivor8,r1 /* System call */
- li r1,0x1000
- mtspr ivor10,r1 /* Decrementer (PIT for 440) */
- li r1,0x1400
- mtspr ivor13,r1 /* Data TLB error */
+ li r1,0x0a00
+ mtspr ivor9,r1 /* Auxiliary Processor unavailable */
+ li r1,0x0900
+ mtspr ivor10,r1 /* Decrementer */
li r1,0x1300
+ mtspr ivor13,r1 /* Data TLB error */
+ li r1,0x1400
mtspr ivor14,r1 /* Instr TLB error */
li r1,0x2000
mtspr ivor15,r1 /* Debug */
@@ -388,8 +400,9 @@ rsttlb: tlbwe r0,r1,0x0000 /* Invalidate all entries (V=0)*/
2:
#if defined(CONFIG_NAND_SPL)
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
/*
- * Enable internal SRAM
+ * Enable internal SRAM (only on 440EPx/GRx, 440EP/GR have no OCM)
*/
lis r2,0x7fff
ori r2,r2,0xffff
@@ -399,6 +412,45 @@ rsttlb: tlbwe r0,r1,0x0000 /* Invalidate all entries (V=0)*/
mfdcr r1,isram0_pmeg
and r1,r1,r2 /* Disable pwr mgmt */
mtdcr isram0_pmeg,r1
+#endif
+#if defined(CONFIG_440EP)
+ /*
+ * On 440EP with no internal SRAM, we setup SDRAM very early
+ * and copy the NAND_SPL to SDRAM and jump to it
+ */
+ /* Clear Dcache to use as RAM */
+ addis r3,r0,CFG_INIT_RAM_ADDR@h
+ ori r3,r3,CFG_INIT_RAM_ADDR@l
+ addis r4,r0,CFG_INIT_RAM_END@h
+ ori r4,r4,CFG_INIT_RAM_END@l
+ rlwinm. r5,r4,0,27,31
+ rlwinm r5,r4,27,5,31
+ beq ..d_ran3
+ addi r5,r5,0x0001
+..d_ran3:
+ mtctr r5
+..d_ag3:
+ dcbz r0,r3
+ addi r3,r3,32
+ bdnz ..d_ag3
+ /*----------------------------------------------------------------*/
+ /* Setup the stack in internal SRAM */
+ /*----------------------------------------------------------------*/
+ lis r1,CFG_INIT_RAM_ADDR@h
+ ori r1,r1,CFG_INIT_SP_OFFSET@l
+ li r0,0
+ stwu r0,-4(r1)
+ stwu r0,-4(r1) /* Terminate call chain */
+
+ stwu r1,-8(r1) /* Save back chain and move SP */
+ lis r0,RESET_VECTOR@h /* Address of reset vector */
+ ori r0,r0, RESET_VECTOR@l
+ stwu r1,-8(r1) /* Save back chain and move SP */
+ stw r0,+12(r1) /* Save return addr (underflow vect) */
+ sync
+ bl early_sdram_init
+ sync
+#endif /* CONFIG_440EP */
/*
* Copy SPL from cache into internal SRAM
@@ -429,7 +481,7 @@ spl_loop:
start_ram:
sync
isync
-#endif
+#endif /* CONFIG_NAND_SPL */
bl 3f
b _start
@@ -454,11 +506,81 @@ version_string:
.ascii " (", __DATE__, " - ", __TIME__, ")"
.ascii CONFIG_IDENT_STRING, "\0"
-/*
- * Maybe this should be moved somewhere else because the current
- * location (0x100) is where the CriticalInput Execption should be.
- */
. = EXC_OFF_SYS_RESET
+ .globl _start_of_vectors
+_start_of_vectors:
+
+/* Critical input. */
+ CRIT_EXCEPTION(0x100, CritcalInput, UnknownException)
+
+#ifdef CONFIG_440
+/* Machine check */
+ MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+#else
+ CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+#endif /* CONFIG_440 */
+
+/* Data Storage exception. */
+ STD_EXCEPTION(0x300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+ STD_EXCEPTION(0x400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+ STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
+
+/* Alignment exception. */
+ . = 0x600
+Alignment:
+ EXCEPTION_PROLOG(SRR0, SRR1)
+ mfspr r4,DAR
+ stw r4,_DAR(r21)
+ mfspr r5,DSISR
+ stw r5,_DSISR(r21)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ li r20,MSR_KERNEL
+ rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
+ lwz r6,GOT(transfer_to_handler)
+ mtlr r6
+ blrl
+.L_Alignment:
+ .long AlignmentException - _start + _START_OFFSET
+ .long int_return - _start + _START_OFFSET
+
+/* Program check exception */
+ . = 0x700
+ProgramCheck:
+ EXCEPTION_PROLOG(SRR0, SRR1)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ li r20,MSR_KERNEL
+ rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
+ lwz r6,GOT(transfer_to_handler)
+ mtlr r6
+ blrl
+.L_ProgramCheck:
+ .long ProgramCheckException - _start + _START_OFFSET
+ .long int_return - _start + _START_OFFSET
+
+#ifdef CONFIG_440
+ STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
+ STD_EXCEPTION(0x900, Decrementer, DecrementerPITException)
+ STD_EXCEPTION(0xa00, APU, UnknownException)
+#endif
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
+
+#ifdef CONFIG_440
+ STD_EXCEPTION(0x1300, DataTLBError, UnknownException)
+ STD_EXCEPTION(0x1400, InstructionTLBError, UnknownException)
+#else
+ STD_EXCEPTION(0x1000, PIT, DecrementerPITException)
+ STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
+ STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
+#endif
+ CRIT_EXCEPTION(0x2000, DebugBreakpoint, DebugException )
+
+ .globl _end_of_vectors
+_end_of_vectors:
+ . = _START_OFFSET
#endif
.globl _start
_start:
@@ -768,21 +890,21 @@ _start:
*/
lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
ori r3,r3,CFG_OCM_DATA_ADDR@l
- ori r3,r3,0x8270 /* 32K Offset, 16K for Bank 1, R/W/Enable */
+ ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */
mtdcr ocmplb3cr1,r3 /* Set PLB Access */
ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */
mtdcr ocmplb3cr2,r3 /* Set PLB Access */
isync
- lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
+ lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
ori r3,r3,CFG_OCM_DATA_ADDR@l
- ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */
- mtdcr ocmdscr1, r3 /* Set Data Side */
- mtdcr ocmiscr1, r3 /* Set Instruction Side */
+ ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */
+ mtdcr ocmdscr1, r3 /* Set Data Side */
+ mtdcr ocmiscr1, r3 /* Set Instruction Side */
ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */
- mtdcr ocmdscr2, r3 /* Set Data Side */
- mtdcr ocmiscr2, r3 /* Set Instruction Side */
- addis r3,0,0x0800 /* OCM Data Parity Disable - 1 Wait State */
+ mtdcr ocmdscr2, r3 /* Set Data Side */
+ mtdcr ocmiscr2, r3 /* Set Instruction Side */
+ addis r3,0,0x0800 /* OCM Data Parity Disable - 1 Wait State */
mtdcr ocmdsisdpc,r3
isync
@@ -801,7 +923,7 @@ _start:
mtdcr ocmdscntl, r4 /* set data-side IRAM config */
isync
- lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
+ lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
ori r3,r3,CFG_OCM_DATA_ADDR@l
mtdcr ocmdsarc, r3
addis r4, 0, 0xC000 /* OCM data area enabled */
@@ -810,6 +932,38 @@ _start:
#endif /* CONFIG_405EZ */
#endif
+#ifdef CONFIG_NAND_SPL
+ /*
+ * Copy SPL from cache into internal SRAM
+ */
+ li r4,(CFG_NAND_BOOT_SPL_SIZE >> 2) - 1
+ mtctr r4
+ lis r2,CFG_NAND_BOOT_SPL_SRC@h
+ ori r2,r2,CFG_NAND_BOOT_SPL_SRC@l
+ lis r3,CFG_NAND_BOOT_SPL_DST@h
+ ori r3,r3,CFG_NAND_BOOT_SPL_DST@l
+spl_loop:
+ lwzu r4,4(r2)
+ stwu r4,4(r3)
+ bdnz spl_loop
+
+ /*
+ * Jump to code in RAM
+ */
+ bl 00f
+00: mflr r10
+ lis r3,(CFG_NAND_BOOT_SPL_SRC - CFG_NAND_BOOT_SPL_DST)@h
+ ori r3,r3,(CFG_NAND_BOOT_SPL_SRC - CFG_NAND_BOOT_SPL_DST)@l
+ sub r10,r10,r3
+ addi r10,r10,28
+ mtlr r10
+ blr
+
+start_ram:
+ sync
+ isync
+#endif /* CONFIG_NAND_SPL */
+
/*----------------------------------------------------------------------- */
/* Setup temporary stack in DCACHE or OCM if needed for SDRAM SPD. */
/*----------------------------------------------------------------------- */
@@ -920,119 +1074,22 @@ _start:
stw r0, +12(r1) /* Save return addr (underflow vect) */
#endif /* !(CFG_INIT_DCACHE_CS || !CFG_TEM_STACK_OCM) */
+#ifdef CONFIG_NAND_SPL
+ bl nand_boot /* will not return */
+#else
GET_GOT /* initialize GOT access */
bl cpu_init_f /* run low-level CPU init code (from Flash) */
/* NEVER RETURNS! */
bl board_init_f /* run first part of init code (from Flash) */
+#endif /* CONFIG_NAND_SPL */
#endif /* CONFIG_405GP || CONFIG_405CR || CONFIG_405 || CONFIG_405EP */
/*----------------------------------------------------------------------- */
#ifndef CONFIG_NAND_SPL
-/*****************************************************************************/
- .globl _start_of_vectors
-_start_of_vectors:
-
-#if 0
-/*TODO Fixup _start above so we can do this*/
-/* Critical input. */
- CRIT_EXCEPTION(0x100, CritcalInput, CritcalInputException)
-#endif
-
-/* Machine check */
- CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException)
-
-/* Data Storage exception. */
- STD_EXCEPTION(0x300, DataStorage, UnknownException)
-
-/* Instruction Storage exception. */
- STD_EXCEPTION(0x400, InstStorage, UnknownException)
-
-/* External Interrupt exception. */
- STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
-
-/* Alignment exception. */
- . = 0x600
-Alignment:
- EXCEPTION_PROLOG
- mfspr r4,DAR
- stw r4,_DAR(r21)
- mfspr r5,DSISR
- stw r5,_DSISR(r21)
- addi r3,r1,STACK_FRAME_OVERHEAD
- li r20,MSR_KERNEL
- rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
- lwz r6,GOT(transfer_to_handler)
- mtlr r6
- blrl
-.L_Alignment:
- .long AlignmentException - _start + EXC_OFF_SYS_RESET
- .long int_return - _start + EXC_OFF_SYS_RESET
-
-/* Program check exception */
- . = 0x700
-ProgramCheck:
- EXCEPTION_PROLOG
- addi r3,r1,STACK_FRAME_OVERHEAD
- li r20,MSR_KERNEL
- rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
- lwz r6,GOT(transfer_to_handler)
- mtlr r6
- blrl
-.L_ProgramCheck:
- .long ProgramCheckException - _start + EXC_OFF_SYS_RESET
- .long int_return - _start + EXC_OFF_SYS_RESET
-
- /* No FPU on MPC8xx. This exception is not supposed to happen.
- */
- STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
-
- /* I guess we could implement decrementer, and may have
- * to someday for timekeeping.
- */
- STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
- STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
- STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
- STD_EXCEPTION(0xc00, SystemCall, UnknownException)
- STD_EXCEPTION(0xd00, SingleStep, UnknownException)
-
- STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
- STD_EXCEPTION(0xf00, Trap_0f, UnknownException)
-
- /* On the MPC8xx, this is a software emulation interrupt. It occurs
- * for all unimplemented and illegal instructions.
- */
- STD_EXCEPTION(0x1000, PIT, PITException)
-
- STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
- STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
- STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException)
- STD_EXCEPTION(0x1400, DataTLBError, UnknownException)
-
- STD_EXCEPTION(0x1500, Reserved5, UnknownException)
- STD_EXCEPTION(0x1600, Reserved6, UnknownException)
- STD_EXCEPTION(0x1700, Reserved7, UnknownException)
- STD_EXCEPTION(0x1800, Reserved8, UnknownException)
- STD_EXCEPTION(0x1900, Reserved9, UnknownException)
- STD_EXCEPTION(0x1a00, ReservedA, UnknownException)
- STD_EXCEPTION(0x1b00, ReservedB, UnknownException)
-
- STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException)
- STD_EXCEPTION(0x1d00, InstructionBreakpoint, UnknownException)
- STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException)
- STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException)
-
- CRIT_EXCEPTION(0x2000, DebugBreakpoint, DebugException )
-
- .globl _end_of_vectors
-_end_of_vectors:
-
-
- . = 0x2100
-
/*
* This code finishes saving the registers to the exception frame
* and jumps to the appropriate handler for the exception.
@@ -1048,28 +1105,12 @@ transfer_to_handler:
SAVE_4GPRS(8, r21)
SAVE_8GPRS(12, r21)
SAVE_8GPRS(24, r21)
-#if 0
- andi. r23,r23,MSR_PR
- mfspr r23,SPRG3 /* if from user, fix up tss.regs */
- beq 2f
- addi r24,r1,STACK_FRAME_OVERHEAD
- stw r24,PT_REGS(r23)
-2: addi r2,r23,-TSS /* set r2 to current */
- tovirt(r2,r2,r23)
-#endif
mflr r23
andi. r24,r23,0x3f00 /* get vector offset */
stw r24,TRAP(r21)
li r22,0
stw r22,RESULT(r21)
mtspr SPRG2,r22 /* r1 is now kernel sp */
-#if 0
- addi r24,r2,TASK_STRUCT_SIZE /* check for kernel stack overflow */
- cmplw 0,r1,r2
- cmplw 1,r1,r24
- crand 1,1,4
- bgt stack_ovf /* if r2 < r1 < r2+TASK_STRUCT_SIZE */
-#endif
lwz r24,0(r23) /* virtual address of handler */
lwz r23,4(r23) /* where to go when done */
mtspr SRR0,r24
@@ -1130,34 +1171,64 @@ crit_return:
REST_GPR(31, r1)
lwz r2,_NIP(r1) /* Restore environment */
lwz r0,_MSR(r1)
- mtspr 990,r2 /* SRR2 */
- mtspr 991,r0 /* SRR3 */
+ mtspr csrr0,r2
+ mtspr csrr1,r0
lwz r0,GPR0(r1)
lwz r2,GPR2(r1)
lwz r1,GPR1(r1)
SYNC
rfci
-#endif /* CONFIG_NAND_SPL */
-/* Cache functions.
-*/
-invalidate_icache:
- iccci r0,r0 /* for 405, iccci invalidates the */
- blr /* entire I cache */
+#ifdef CONFIG_440
+mck_return:
+ mfmsr r28 /* Disable interrupts */
+ li r4,0
+ ori r4,r4,MSR_EE
+ andc r28,r28,r4
+ SYNC /* Some chip revs need this... */
+ mtmsr r28
+ SYNC
+ lwz r2,_CTR(r1)
+ lwz r0,_LINK(r1)
+ mtctr r2
+ mtlr r0
+ lwz r2,_XER(r1)
+ lwz r0,_CCR(r1)
+ mtspr XER,r2
+ mtcrf 0xFF,r0
+ REST_10GPRS(3, r1)
+ REST_10GPRS(13, r1)
+ REST_8GPRS(23, r1)
+ REST_GPR(31, r1)
+ lwz r2,_NIP(r1) /* Restore environment */
+ lwz r0,_MSR(r1)
+ mtspr mcsrr0,r2
+ mtspr mcsrr1,r0
+ lwz r0,GPR0(r1)
+ lwz r2,GPR2(r1)
+ lwz r1,GPR1(r1)
+ SYNC
+ rfmci
+#endif /* CONFIG_440 */
-invalidate_dcache:
- addi r6,0,0x0000 /* clear GPR 6 */
- /* Do loop for # of dcache congruence classes. */
- lis r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS for large sized cache */
- ori r7, r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l
- /* NOTE: dccci invalidates both */
- mtctr r7 /* ways in the D cache */
-..dcloop:
- dccci 0,r6 /* invalidate line */
- addi r6,r6, CFG_CACHELINE_SIZE /* bump to next line */
- bdnz ..dcloop
+
+/*
+ * Cache functions.
+ *
+ * NOTE: currently the 440s run with dcache _disabled_ once relocated to DRAM,
+ * although for some cache-ralated calls stubs have to be provided to satisfy
+ * symbols resolution.
+ *
+ */
+#ifdef CONFIG_440
+ .globl dcache_disable
+dcache_disable:
blr
+ .globl dcache_status
+dcache_status:
+ blr
+#else
flush_dcache:
addis r9,r0,0x0002 /* set mask for EE and CE msr bits */
ori r9,r9,0x8000
@@ -1236,42 +1307,13 @@ dcache_status:
mfdccr r3
srwi r3, r3, 31 /* >>31 => select bit 0 */
blr
+#endif
.globl get_pvr
get_pvr:
mfspr r3, PVR
blr
-#if !defined(CONFIG_440)
- .globl wr_pit
-wr_pit:
- mtspr pit, r3
- blr
-#endif
-
- .globl wr_tcr
-wr_tcr:
- mtspr tcr, r3
- blr
-
-/*------------------------------------------------------------------------------- */
-/* Function: in8 */
-/* Description: Input 8 bits */
-/*------------------------------------------------------------------------------- */
- .globl in8
-in8:
- lbz r3,0x0000(r3)
- blr
-
-/*------------------------------------------------------------------------------- */
-/* Function: out8 */
-/* Description: Output 8 bits */
-/*------------------------------------------------------------------------------- */
- .globl out8
-out8:
- stb r4,0x0000(r3)
- blr
-
/*------------------------------------------------------------------------------- */
/* Function: out16 */
/* Description: Output 16 bits */
@@ -1291,15 +1333,6 @@ out16r:
blr
/*------------------------------------------------------------------------------- */
-/* Function: out32 */
-/* Description: Output 32 bits */
-/*------------------------------------------------------------------------------- */
- .globl out32
-out32:
- stw r4,0x0000(r3)
- blr
-
-/*------------------------------------------------------------------------------- */
/* Function: out32r */
/* Description: Byte reverse and output 32 bits */
/*------------------------------------------------------------------------------- */
@@ -1327,15 +1360,6 @@ in16r:
blr
/*------------------------------------------------------------------------------- */
-/* Function: in32 */
-/* Description: Input 32 bits */
-/*------------------------------------------------------------------------------- */
- .globl in32
-in32:
- lwz 3,0x0000(3)
- blr
-
-/*------------------------------------------------------------------------------- */
/* Function: in32r */
/* Description: Input 32 bits and byte reverse */
/*------------------------------------------------------------------------------- */
@@ -1377,9 +1401,6 @@ ppcSync:
sync
blr
-/*------------------------------------------------------------------------------*/
-
-#ifndef CONFIG_NAND_SPL
/*
* void relocate_code (addr_sp, gd, addr_moni)
*
@@ -1490,7 +1511,7 @@ relocate_code:
* initialization, now running from RAM.
*/
- addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
+ addi r0, r10, in_ram - _start + _START_OFFSET
mtlr r0
blr /* NEVER RETURNS! */
@@ -1560,7 +1581,7 @@ clear_bss:
*/
.globl trap_init
trap_init:
- lwz r7, GOT(_start)
+ lwz r7, GOT(_start_of_vectors)
lwz r8, GOT(_end_of_vectors)
li r9, 0x100 /* reset vector always at 0x100 */
@@ -1580,35 +1601,48 @@ trap_init:
/*
* relocate `hdlr' and `int_return' entries
*/
- li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
- li r8, Alignment - _start + EXC_OFF_SYS_RESET
+ li r7, .L_MachineCheck - _start + _START_OFFSET
+ li r8, Alignment - _start + _START_OFFSET
2:
bl trap_reloc
- addi r7, r7, 0x100 /* next exception vector */
+ addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 2b
- li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
+ li r7, .L_Alignment - _start + _START_OFFSET
bl trap_reloc
- li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
+ li r7, .L_ProgramCheck - _start + _START_OFFSET
bl trap_reloc
- li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
- li r8, SystemCall - _start + EXC_OFF_SYS_RESET
-3:
+#ifdef CONFIG_440
+ li r7, .L_FPUnavailable - _start + _START_OFFSET
bl trap_reloc
- addi r7, r7, 0x100 /* next exception vector */
- cmplw 0, r7, r8
- blt 3b
- li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET
- li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
-4:
+ li r7, .L_Decrementer - _start + _START_OFFSET
+ bl trap_reloc
+
+ li r7, .L_APU - _start + _START_OFFSET
+ bl trap_reloc
+
+ li r7, .L_InstructionTLBError - _start + _START_OFFSET
+ bl trap_reloc
+
+ li r7, .L_DataTLBError - _start + _START_OFFSET
+ bl trap_reloc
+#else /* CONFIG_440 */
+ li r7, .L_PIT - _start + _START_OFFSET
+ bl trap_reloc
+
+ li r7, .L_InstructionTLBMiss - _start + _START_OFFSET
+ bl trap_reloc
+
+ li r7, .L_DataTLBMiss - _start + _START_OFFSET
+ bl trap_reloc
+#endif /* CONFIG_440 */
+
+ li r7, .L_DebugBreakpoint - _start + _START_OFFSET
bl trap_reloc
- addi r7, r7, 0x100 /* next exception vector */
- cmplw 0, r7, r8
- blt 4b
#if !defined(CONFIG_440)
addi r7,r0,0x1000 /* set ME bit (Machine Exceptions) */
@@ -1644,8 +1678,105 @@ trap_reloc:
stw r0, 4(r7)
blr
+
+#if defined(CONFIG_440)
+/*----------------------------------------------------------------------------+
+| dcbz_area.
++----------------------------------------------------------------------------*/
+ function_prolog(dcbz_area)
+ rlwinm. r5,r4,0,27,31
+ rlwinm r5,r4,27,5,31
+ beq ..d_ra2
+ addi r5,r5,0x0001
+..d_ra2:mtctr r5
+..d_ag2:dcbz r0,r3
+ addi r3,r3,32
+ bdnz ..d_ag2
+ sync
+ blr
+ function_epilog(dcbz_area)
+
+/*----------------------------------------------------------------------------+
+| dflush. Assume 32K at vector address is cachable.
++----------------------------------------------------------------------------*/
+ function_prolog(dflush)
+ mfmsr r9
+ rlwinm r8,r9,0,15,13
+ rlwinm r8,r8,0,17,15
+ mtmsr r8
+ addi r3,r0,0x0000
+ mtspr dvlim,r3
+ mfspr r3,ivpr
+ addi r4,r0,1024
+ mtctr r4
+..dflush_loop:
+ lwz r6,0x0(r3)
+ addi r3,r3,32
+ bdnz ..dflush_loop
+ addi r3,r3,-32
+ mtctr r4
+..ag: dcbf r0,r3
+ addi r3,r3,-32
+ bdnz ..ag
+ sync
+ mtmsr r9
+ blr
+ function_epilog(dflush)
+#endif /* CONFIG_440 */
#endif /* CONFIG_NAND_SPL */
+/*------------------------------------------------------------------------------- */
+/* Function: in8 */
+/* Description: Input 8 bits */
+/*------------------------------------------------------------------------------- */
+ .globl in8
+in8:
+ lbz r3,0x0000(r3)
+ blr
+
+/*------------------------------------------------------------------------------- */
+/* Function: out8 */
+/* Description: Output 8 bits */
+/*------------------------------------------------------------------------------- */
+ .globl out8
+out8:
+ stb r4,0x0000(r3)
+ blr
+
+/*------------------------------------------------------------------------------- */
+/* Function: out32 */
+/* Description: Output 32 bits */
+/*------------------------------------------------------------------------------- */
+ .globl out32
+out32:
+ stw r4,0x0000(r3)
+ blr
+
+/*------------------------------------------------------------------------------- */
+/* Function: in32 */
+/* Description: Input 32 bits */
+/*------------------------------------------------------------------------------- */
+ .globl in32
+in32:
+ lwz 3,0x0000(3)
+ blr
+
+invalidate_icache:
+ iccci r0,r0 /* for 405, iccci invalidates the */
+ blr /* entire I cache */
+
+invalidate_dcache:
+ addi r6,0,0x0000 /* clear GPR 6 */
+ /* Do loop for # of dcache congruence classes. */
+ lis r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS for large sized cache */
+ ori r7, r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l
+ /* NOTE: dccci invalidates both */
+ mtctr r7 /* ways in the D cache */
+..dcloop:
+ dccci 0,r6 /* invalidate line */
+ addi r6,r6, CFG_CACHELINE_SIZE /* bump to next line */
+ bdnz ..dcloop
+ blr
/**************************************************************************/
/* PPC405EP specific stuff */
@@ -1892,13 +2023,6 @@ pll_wait:
#endif /* CONFIG_405EP */
#if defined(CONFIG_440)
-#define function_prolog(func_name) .text; \
- .align 2; \
- .globl func_name; \
- func_name:
-#define function_epilog(func_name) .type func_name,@function; \
- .size func_name,.-func_name
-
/*----------------------------------------------------------------------------+
| mttlb3.
+----------------------------------------------------------------------------*/
@@ -1946,47 +2070,4 @@ pll_wait:
TLBRE(3,3,0)
blr
function_epilog(mftlb1)
-
-/*----------------------------------------------------------------------------+
-| dcbz_area.
-+----------------------------------------------------------------------------*/
- function_prolog(dcbz_area)
- rlwinm. r5,r4,0,27,31
- rlwinm r5,r4,27,5,31
- beq ..d_ra2
- addi r5,r5,0x0001
-..d_ra2:mtctr r5
-..d_ag2:dcbz r0,r3
- addi r3,r3,32
- bdnz ..d_ag2
- sync
- blr
- function_epilog(dcbz_area)
-
-/*----------------------------------------------------------------------------+
-| dflush. Assume 32K at vector address is cachable.
-+----------------------------------------------------------------------------*/
- function_prolog(dflush)
- mfmsr r9
- rlwinm r8,r9,0,15,13
- rlwinm r8,r8,0,17,15
- mtmsr r8
- addi r3,r0,0x0000
- mtspr dvlim,r3
- mfspr r3,ivpr
- addi r4,r0,1024
- mtctr r4
-..dflush_loop:
- lwz r6,0x0(r3)
- addi r3,r3,32
- bdnz ..dflush_loop
- addi r3,r3,-32
- mtctr r4
-..ag: dcbf r0,r3
- addi r3,r3,-32
- bdnz ..ag
- sync
- mtmsr r9
- blr
- function_epilog(dflush)
#endif /* CONFIG_440 */
diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c
index 50344a4..6c916ef 100644
--- a/cpu/ppc4xx/tlb.c
+++ b/cpu/ppc4xx/tlb.c
@@ -36,7 +36,8 @@ typedef struct region {
unsigned long tlb_word2_i_value;
} region_t;
-static int add_tlb_entry(unsigned long base_addr,
+static int add_tlb_entry(unsigned long phys_addr,
+ unsigned long virt_addr,
unsigned long tlb_word0_size_value,
unsigned long tlb_word2_i_value)
{
@@ -55,9 +56,9 @@ static int add_tlb_entry(unsigned long base_addr,
return -1;
/* Second, create the TLB entry */
- tlb_word0_value = TLB_WORD0_EPN_ENCODE(base_addr) | TLB_WORD0_V_ENABLE |
+ tlb_word0_value = TLB_WORD0_EPN_ENCODE(virt_addr) | TLB_WORD0_V_ENABLE |
TLB_WORD0_TS_0 | tlb_word0_size_value;
- tlb_word1_value = TLB_WORD1_RPN_ENCODE(base_addr) | TLB_WORD1_ERPN_ENCODE(0);
+ tlb_word1_value = TLB_WORD1_RPN_ENCODE(phys_addr) | TLB_WORD1_ERPN_ENCODE(0);
tlb_word2_value = TLB_WORD2_U0_DISABLE | TLB_WORD2_U1_DISABLE |
TLB_WORD2_U2_DISABLE | TLB_WORD2_U3_DISABLE |
TLB_WORD2_W_DISABLE | tlb_word2_i_value |
@@ -81,7 +82,9 @@ static int add_tlb_entry(unsigned long base_addr,
return 0;
}
-static void program_tlb_addr(unsigned long base_addr, unsigned long mem_size,
+static void program_tlb_addr(unsigned long phys_addr,
+ unsigned long virt_addr,
+ unsigned long mem_size,
unsigned long tlb_word2_i_value)
{
int rc;
@@ -91,70 +94,78 @@ static void program_tlb_addr(unsigned long base_addr, unsigned long mem_size,
while (mem_size != 0) {
rc = 0;
/* Add the TLB entries in to map the region. */
- if (((base_addr & TLB_256MB_ALIGN_MASK) == base_addr) &&
+ if (((phys_addr & TLB_256MB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_256MB_SIZE)) {
/* Add a 256MB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_256MB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_256MB, tlb_i)) == 0) {
mem_size -= TLB_256MB_SIZE;
- base_addr += TLB_256MB_SIZE;
+ phys_addr += TLB_256MB_SIZE;
}
- } else if (((base_addr & TLB_16MB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_16MB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_16MB_SIZE)) {
/* Add a 16MB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_16MB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_16MB, tlb_i)) == 0) {
mem_size -= TLB_16MB_SIZE;
- base_addr += TLB_16MB_SIZE;
+ phys_addr += TLB_16MB_SIZE;
}
- } else if (((base_addr & TLB_1MB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_1MB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_1MB_SIZE)) {
/* Add a 1MB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_1MB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_1MB, tlb_i)) == 0) {
mem_size -= TLB_1MB_SIZE;
- base_addr += TLB_1MB_SIZE;
+ phys_addr += TLB_1MB_SIZE;
}
- } else if (((base_addr & TLB_256KB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_256KB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_256KB_SIZE)) {
/* Add a 256KB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_256KB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_256KB, tlb_i)) == 0) {
mem_size -= TLB_256KB_SIZE;
- base_addr += TLB_256KB_SIZE;
+ phys_addr += TLB_256KB_SIZE;
}
- } else if (((base_addr & TLB_64KB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_64KB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_64KB_SIZE)) {
/* Add a 64KB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_64KB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_64KB, tlb_i)) == 0) {
mem_size -= TLB_64KB_SIZE;
- base_addr += TLB_64KB_SIZE;
+ phys_addr += TLB_64KB_SIZE;
}
- } else if (((base_addr & TLB_16KB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_16KB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_16KB_SIZE)) {
/* Add a 16KB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_16KB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_16KB, tlb_i)) == 0) {
mem_size -= TLB_16KB_SIZE;
- base_addr += TLB_16KB_SIZE;
+ phys_addr += TLB_16KB_SIZE;
}
- } else if (((base_addr & TLB_4KB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_4KB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_4KB_SIZE)) {
/* Add a 4KB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_4KB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_4KB, tlb_i)) == 0) {
mem_size -= TLB_4KB_SIZE;
- base_addr += TLB_4KB_SIZE;
+ phys_addr += TLB_4KB_SIZE;
}
- } else if (((base_addr & TLB_1KB_ALIGN_MASK) == base_addr) &&
+ } else if (((phys_addr & TLB_1KB_ALIGN_MASK) == phys_addr) &&
(mem_size >= TLB_1KB_SIZE)) {
/* Add a 1KB TLB entry */
- if ((rc = add_tlb_entry(base_addr, TLB_WORD0_SIZE_1KB, tlb_i)) == 0) {
+ if ((rc = add_tlb_entry(phys_addr, virt_addr,
+ TLB_WORD0_SIZE_1KB, tlb_i)) == 0) {
mem_size -= TLB_1KB_SIZE;
- base_addr += TLB_1KB_SIZE;
+ phys_addr += TLB_1KB_SIZE;
}
} else {
printf("ERROR: no TLB size exists for the base address 0x%0X.\n",
- base_addr);
+ phys_addr);
}
if (rc != 0)
printf("ERROR: no TLB entries available for the base addr 0x%0X.\n",
- base_addr);
+ phys_addr);
}
return;
@@ -166,16 +177,16 @@ static void program_tlb_addr(unsigned long base_addr, unsigned long mem_size,
* Common usage for boards with SDRAM DIMM modules to dynamically
* configure the TLB's for the SDRAM
*/
-void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value)
+void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value)
{
region_t region_array;
- region_array.base = start;
+ region_array.base = phys_addr;
region_array.size = size;
region_array.tlb_word2_i_value = tlb_word2_i_value; /* en-/disable cache */
/* Call the routine to add in the tlb entries for the memory regions */
- program_tlb_addr(region_array.base, region_array.size,
+ program_tlb_addr(region_array.base, virt_addr, region_array.size,
region_array.tlb_word2_i_value);
return;
diff --git a/cpu/ppc4xx/traps.c b/cpu/ppc4xx/traps.c
index 6aecca2..7c44a29 100644
--- a/cpu/ppc4xx/traps.c
+++ b/cpu/ppc4xx/traps.c
@@ -36,6 +36,8 @@
#include <command.h>
#include <asm/processor.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
int (*debugger_exception_handler)(struct pt_regs *) = 0;
#endif
@@ -45,8 +47,7 @@ extern unsigned long search_exception_table(unsigned long);
/* THIS NEEDS CHANGING to use the board info structure.
*/
-#define END_OF_MEM 0x00400000
-
+#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize)
static __inline__ void set_tsr(unsigned long val)
{
@@ -110,7 +111,7 @@ void show_regs(struct pt_regs * regs)
{
int i;
- printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n",
+ printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DEAR: %08lX\n",
regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
@@ -120,14 +121,12 @@ void show_regs(struct pt_regs * regs)
printf("\n");
for (i = 0; i < 32; i++) {
- if ((i % 8) == 0)
- {
+ if ((i % 8) == 0) {
printf("GPR%02d: ", i);
}
printf("%08lX ", regs->gpr[i]);
- if ((i % 8) == 7)
- {
+ if ((i % 8) == 7) {
printf("\n");
}
}
@@ -139,13 +138,13 @@ _exception(int signr, struct pt_regs *regs)
{
show_regs(regs);
print_backtrace((unsigned long *)regs->gpr[1]);
- panic("Exception in kernel pc %lx signal %d",regs->nip,signr);
+ panic("Exception");
}
void
MachineCheckException(struct pt_regs *regs)
{
- unsigned long fixup;
+ unsigned long fixup, val;
/* Probing PCI using config cycles cause this exception
* when a device is not present. Catch it and return to
@@ -161,26 +160,50 @@ MachineCheckException(struct pt_regs *regs)
return;
#endif
- printf("Machine check in kernel mode.\n");
+ printf("Machine Check Exception.\n");
printf("Caused by (from msr): ");
- printf("regs %p ",regs);
- switch( regs->msr & 0x000F0000) {
- case (0x80000000>>12):
- printf("Machine check signal - probably due to mm fault\n"
- "with mmu off\n");
- break;
- case (0x80000000>>13):
- printf("Transfer error ack signal\n");
- break;
- case (0x80000000>>14):
- printf("Data parity signal\n");
- break;
- case (0x80000000>>15):
- printf("Address parity signal\n");
- break;
- default:
- printf("Unknown values in msr\n");
+ printf("regs %p ", regs);
+
+ val = get_esr();
+
+#if !defined(CONFIG_440)
+ if (val& ESR_IMCP) {
+ printf("Instruction");
+ mtspr(ESR, val & ~ESR_IMCP);
+ } else {
+ printf("Data");
}
+ printf(" machine check.\n");
+
+#elif defined(CONFIG_440)
+ if (val& ESR_IMCP){
+ printf("Instruction Synchronous Machine Check exception\n");
+ mtspr(SPRN_ESR, val & ~ESR_IMCP);
+ } else {
+ val = mfspr(MCSR);
+ if (val & MCSR_IB)
+ printf("Instruction Read PLB Error\n");
+ if (val & MCSR_DRB)
+ printf("Data Read PLB Error\n");
+ if (val & MCSR_DWB)
+ printf("Data Write PLB Error\n");
+ if (val & MCSR_TLBP)
+ printf("TLB Parity Error\n");
+ if (val & MCSR_ICP){
+ /*flush_instruction_cache(); */
+ printf("I-Cache Parity Error\n");
+ }
+ if (val & MCSR_DCSP)
+ printf("D-Cache Search Parity Error\n");
+ if (val & MCSR_DCFP)
+ printf("D-Cache Flush Parity Error\n");
+ if (val & MCSR_IMPE)
+ printf("Machine Check exception is imprecise\n");
+
+ /* Clear MCSR */
+ mtspr(SPRN_MCSR, val);
+ }
+#endif
show_regs(regs);
print_backtrace((unsigned long *)regs->gpr[1]);
panic("machine check");
@@ -224,7 +247,7 @@ ProgramCheckException(struct pt_regs *regs)
}
void
-PITException(struct pt_regs *regs)
+DecrementerPITException(struct pt_regs *regs)
{
/*
* Reset PIT interrupt
@@ -272,17 +295,17 @@ addr_probe(uint *addr)
__asm__ __volatile__( \
"1: lwz %0,0(%1)\n" \
- " eieio\n" \
- " li %0,0\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: li %0,-1\n" \
- " b 2b\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 2\n" \
- " .long 1b,3b\n" \
- ".text" \
- : "=r" (retval) : "r"(addr));
+ " eieio\n" \
+ " li %0,0\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3: li %0,-1\n" \
+ " b 2b\n" \
+ ".section __ex_table,\"a\"\n" \
+ " .align 2\n" \
+ " .long 1b,3b\n" \
+ ".text" \
+ : "=r" (retval) : "r"(addr));
return (retval);
#endif
generated by cgit v1.1 at 2024-12-18 17:49:56 +0000