[U-Boot-Users] [PATCH]ppc_4xx:netstal HCU5 board: added various fixes and POST
Niklaus Giger
niklausgiger at gmx.ch
Mon Jan 14 15:30:23 CET 2008
Moved some code to nestal/common/nm_bsp.c.
Added support for the vxWorks EDR.
Enable trace for Lauterbach, if present.
Added support for POST.
Signed-off-by: Niklaus Giger <niklaus.giger at netstal.com>
---
board/netstal/hcu5/Makefile | 3 +-
board/netstal/hcu5/README.txt | 3 -
board/netstal/hcu5/hcu5.c | 201 ++++++++++++++---------------------------
board/netstal/hcu5/init.S | 63 +++++++++----
board/netstal/hcu5/sdram.c | 74 +++++++--------
5 files changed, 149 insertions(+), 195 deletions(-)
diff --git a/board/netstal/hcu5/Makefile b/board/netstal/hcu5/Makefile
index 27398b9..9645e45 100644
--- a/board/netstal/hcu5/Makefile
+++ b/board/netstal/hcu5/Makefile
@@ -23,9 +23,10 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
vpath hcu_flash.c ../common
+vpath nm_bsp.c ../common
# NOBJS : Netstal common objects
-NOBJS = hcu_flash.o
+NOBJS = hcu_flash.o nm_bsp.o
COBJS = $(BOARD).o sdram.o
SOBJS = init.o
diff --git a/board/netstal/hcu5/README.txt b/board/netstal/hcu5/README.txt
index 3118da9..c205108 100644
--- a/board/netstal/hcu5/README.txt
+++ b/board/netstal/hcu5/README.txt
@@ -10,9 +10,6 @@ TODO:
- Fix RTS/CTS problem (HW?)
CONFIG_SERIAL_MULTI/CONFIG_SERIAL_SOFTWARE_FIFO hangs after
Switching to interrupt driven serial input mode
-- Make vxWorks start from u-boot. Possible reasons
- - Does vxWorks need an entry for the Machine Check interrupt like this
- tlbentry( 0x40000000, SZ_256M, 0, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) ?
Caveats:
--------
diff --git a/board/netstal/hcu5/hcu5.c b/board/netstal/hcu5/hcu5.c
index 8c23e4d..9b3aeed 100644
--- a/board/netstal/hcu5/hcu5.c
+++ b/board/netstal/hcu5/hcu5.c
@@ -22,12 +22,14 @@
#include <asm/processor.h>
#include <ppc440.h>
#include <asm/mmu.h>
-#include <net.h>
DECLARE_GLOBAL_DATA_PTR;
void hcu_led_set(u32 value);
-
+int board_with_pci(void);
+extern void nm_show_print(int generation, int index, int hw_capabilities);
+extern void set_params_for_sw_install(int install_requested, char *board_name );
+extern void common_misc_init_r(void);
extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
#undef BOOTSTRAP_OPTION_A_ACTIVE
@@ -42,23 +44,10 @@ extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
#define SDR0_ECID2 0x0082
#define SDR0_ECID3 0x0083
-#define SYS_IO_ADDRESS (CFG_CS_2 + 0x00e00000)
+#define SYS_IO_ADDRESS (CFG_CS_2 + 0x00e00000)
#define SYS_SLOT_ADDRESS (CFG_CPLD + 0x00400000)
-
-#define DEFAULT_ETH_ADDR "ethaddr"
-/* ethaddr for first or etha1ddr for second ethernet */
-
-enum {
- /* HW_GENERATION_HCU1 is no longer supported */
- HW_GENERATION_HCU2 = 0x10,
- HW_GENERATION_HCU3 = 0x10,
- HW_GENERATION_HCU4 = 0x20,
- HW_GENERATION_HCU5 = 0x30,
- HW_GENERATION_MCU = 0x08,
- HW_GENERATION_MCU20 = 0x0a,
- HW_GENERATION_MCU25 = 0x09,
-};
-
+#define HCU_DIGITAL_IO_REGISTER (CFG_CPLD + 0x0500000)
+#define HCU_SW_INSTALL_REQUESTED 0x10
/*
* This function is run very early, out of flash, and before devices are
@@ -72,7 +61,6 @@ enum {
int board_early_init_f(void)
{
- u32 reg;
#ifdef BOOTSTRAP_OPTION_A_ACTIVE
/* Booting with Bootstrap Option A
@@ -172,12 +160,6 @@ int board_early_init_f(void)
mtsdr(sdr_pfc0, 0x00003E00); /* Pin function: */
mtsdr(sdr_pfc1, 0x00848000); /* Pin function: UART0 has 4 pins */
- /* PCI arbiter enabled */
- mfsdr(sdr_pci0, reg);
- mtsdr(sdr_pci0, 0x80000000 | reg);
-
- pci_pre_init(0);
-
/* setup BOOT FLASH */
mtsdr(SDR0_CUST0, 0xC0082350);
@@ -192,33 +174,27 @@ int board_pre_init(void)
#endif
+int sys_install_requested(void)
+{
+ u16 *ioValuePtr = (u16 *)HCU_DIGITAL_IO_REGISTER;
+ return (*ioValuePtr & HCU_SW_INSTALL_REQUESTED) != 0;
+}
+
int checkboard(void)
{
- unsigned int j;
u16 *hwVersReg = (u16 *) HCU_HW_VERSION_REGISTER;
u16 *boardVersReg = (u16 *) HCU_CPLD_VERSION_REGISTER;
u16 generation = *boardVersReg & 0xf0;
u16 index = *boardVersReg & 0x0f;
u32 ecid0, ecid1, ecid2, ecid3;
- printf("Netstal Maschinen AG: ");
- if (generation == HW_GENERATION_HCU3)
- printf("HCU3: index %d", index);
- else if (generation == HW_GENERATION_HCU4)
- printf("HCU4: index %d", index);
- else if (generation == HW_GENERATION_HCU5)
- printf("HCU5: index %d", index);
- printf(" HW 0x%02x\n", *hwVersReg & 0xff);
+ nm_show_print(generation, index, *hwVersReg & 0xff);
mfsdr(SDR0_ECID0, ecid0);
mfsdr(SDR0_ECID1, ecid1);
mfsdr(SDR0_ECID2, ecid2);
mfsdr(SDR0_ECID3, ecid3);
printf("Chip ID 0x%x 0x%x 0x%x 0x%x\n", ecid0, ecid1, ecid2, ecid3);
- for (j = 0;j < 6; j++) {
- hcu_led_set(1 << j);
- udelay(200 * 1000);
- }
return 0;
}
@@ -239,7 +215,7 @@ void hcu_led_set(u32 value)
/*---------------------------------------------------------------------------+
* get_serial_number
*---------------------------------------------------------------------------*/
-static u32 get_serial_number(void)
+u32 get_serial_number(void)
{
u32 *serial = (u32 *)CFG_FLASH_BASE;
@@ -265,60 +241,10 @@ u32 hcu_get_slot(void)
*---------------------------------------------------------------------------*/
int misc_init_r(void)
{
- char *s = getenv(DEFAULT_ETH_ADDR);
- char *e;
- int i;
- u32 serial = get_serial_number();
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
unsigned long sdr0_pfc1;
- for (i = 0; i < 6; ++i) {
- gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
- if (s)
- s = (*e) ? e + 1 : e;
- }
-
- if (gd->bd->bi_enetaddr[3] == 0 &&
- gd->bd->bi_enetaddr[4] == 0 &&
- gd->bd->bi_enetaddr[5] == 0) {
- char ethaddr[22];
-
- /* Must be in sync with CONFIG_ETHADDR */
- gd->bd->bi_enetaddr[0] = 0x00;
- gd->bd->bi_enetaddr[1] = 0x60;
- gd->bd->bi_enetaddr[2] = 0x13;
- gd->bd->bi_enetaddr[3] = (serial >> 16) & 0xff;
- gd->bd->bi_enetaddr[4] = (serial >> 8) & 0xff;
- gd->bd->bi_enetaddr[5] = hcu_get_slot();
- sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X\0",
- gd->bd->bi_enetaddr[0], gd->bd->bi_enetaddr[1],
- gd->bd->bi_enetaddr[2], gd->bd->bi_enetaddr[3],
- gd->bd->bi_enetaddr[4], gd->bd->bi_enetaddr[5]) ;
- printf("%s: Setting eth %s serial 0x%x\n", __FUNCTION__,
- ethaddr, serial);
- setenv(DEFAULT_ETH_ADDR, ethaddr);
- }
-
- /* IP-Adress update */
- {
- IPaddr_t ipaddr;
- char *ipstring;
-
- ipstring = getenv("ipaddr");
- if (ipstring == 0)
- ipaddr = string_to_ip("172.25.1.99");
- else
- ipaddr = string_to_ip(ipstring);
- if ((ipaddr & 0xff) != (32 + hcu_get_slot())) {
- char tmp[22];
-
- ipaddr = (ipaddr & 0xffffff00) + 32 + hcu_get_slot();
- ip_to_string (ipaddr, tmp);
- printf("%s: enforce %s\n", __FUNCTION__, tmp);
- setenv("ipaddr", tmp);
- }
- }
#ifdef CFG_ENV_IS_IN_FLASH
/* Monitor protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
@@ -326,12 +252,14 @@ int misc_init_r(void)
0xffffffff,
&flash_info[0]);
+#ifdef CFG_ENV_ADDR_REDUND
/* Env protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR_REDUND,
CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
&flash_info[0]);
#endif
+#endif
/*
* USB stuff...
@@ -376,13 +304,34 @@ int misc_init_r(void)
mtsdr(SDR0_SRST1, 0x00000000);
udelay(1000);
mtsdr(SDR0_SRST0, 0x00000000);
-
printf("USB: Host(int phy) Device(ext phy)\n");
+ common_misc_init_r();
+ set_params_for_sw_install( sys_install_requested(), "hcu5" );
+ /* We cannot easily enable trace before, as there are other
+ * routines messing around with sdr0_pfc1. And I do not need it.
+ */
+ if (mfspr(dbcr0) & 0x80000000) { /* External debugger alive */
+ /* enable trace facilty for Lauterback
+ * CCR0[DAPUIB]=0 Enable broadcast of instruction data
+ * to auxiliary processor interface
+ * CCR0[DTB]=0 Enable broadcast of trace information
+ * SDR0_PFC0[TRE] Trace signals are enabled instead of
+ * GPIO49-63
+ */
+ mtspr(ccr0, mfspr(ccr0) &~ 0x00108000);
+ mtsdr(SDR0_PFC0, sdr0_pfc1 | 0x00000100);
+ }
return 0;
}
+#ifdef CONFIG_PCI
+int board_with_pci(void)
+{
+ u32 reg;
+ mfsdr(sdr_pci0, reg);
+ return (reg & SDR0_XCR_PAE_MASK);
+}
-#if defined(CONFIG_PCI)
/*************************************************************************
* pci_pre_init
*
@@ -399,53 +348,37 @@ int pci_pre_init(struct pci_controller *hose)
{
unsigned long addr;
- /*-------------------------------------------------------------------+
- * As of errata version 0.4, CHIP_8: Incorrect Write to DDR SDRAM.
- * Workaround: Disable write pipelining to DDR SDRAM by setting
- * PLB0_ACR[WRP] = 0.
- *-------------------------------------------------------------------*/
+ if (!board_with_pci()) { return 0; }
- /*-------------------------------------------------------------------+
- | Set priority for all PLB3 devices to 0.
- | Set PLB3 arbiter to fair mode.
- +-------------------------------------------------------------------*/
+ /*-------------------------------------------------------------------
+ * Set priority for all PLB3 devices to 0.
+ * Set PLB3 arbiter to fair mode.
+ *-------------------------------------------------------------------*/
mfsdr(sdr_amp1, addr);
mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb3_acr);
- /* mtdcr(plb3_acr, addr & ~plb1_acr_wrp_mask); */ /* ngngng */
mtdcr(plb3_acr, addr | 0x80000000); /* Sequoia */
- /*-------------------------------------------------------------------+
- | Set priority for all PLB4 devices to 0.
- +-------------------------------------------------------------------*/
+ /*-------------------------------------------------------------------
+ * Set priority for all PLB4 devices to 0.
+ *-------------------------------------------------------------------*/
mfsdr(sdr_amp0, addr);
mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
- /* mtdcr(plb4_acr, addr & ~plb1_acr_wrp_mask); */ /* ngngng */
mtdcr(plb4_acr, addr); /* Sequoia */
/*-------------------------------------------------------------------+
- | Set Nebula PLB4 arbiter to fair mode.
- +-------------------------------------------------------------------*/
+ * As of errata version 0.4, CHIP_8: Incorrect Write to DDR SDRAM.
+ * Workaround: Disable write pipelining to DDR SDRAM by setting
+ * PLB0_ACR[WRP] = 0.
+ *-------------------------------------------------------------------*/
/* Segment0 */
- addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
- addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
- addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
- /* addr = (addr & ~plb0_acr_wrp_mask); */ /* ngngng */
- addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep; /* Sequoia */
-
- /* mtdcr(plb0_acr, addr); */ /* Sequoia */
mtdcr(plb0_acr, 0); /* PATCH HAB: WRITE PIPELINING OFF */
/* Segment1 */
- addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
- addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
- addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
- addr = (addr & ~plb1_acr_wrp_mask) ;
- /* mtdcr(plb1_acr, addr); */ /* Sequoia */
mtdcr(plb1_acr, 0); /* PATCH HAB: WRITE PIPELINING OFF */
- return 1;
+ return board_with_pci();
}
/*************************************************************************
@@ -458,17 +391,18 @@ int pci_pre_init(struct pci_controller *hose)
************************************************************************/
void pci_target_init(struct pci_controller *hose)
{
+ if (!board_with_pci()) { return; }
/*-------------------------------------------------------------+
* Set up Direct MMIO registers
*-------------------------------------------------------------*/
- /*-------------------------------------------------------------+
- | PowerPC440EPX PCI Master configuration.
- | Map one 1Gig range of PLB/processor addresses to PCI memory space.
- | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address
- | 0xA0000000-0xDFFFFFFF
- | Use byte reversed out routines to handle endianess.
- | Make this region non-prefetchable.
- +-------------------------------------------------------------*/
+ /*-------------------------------------------------------------
+ * PowerPC440EPX PCI Master configuration.
+ * Map one 1Gig range of PLB/processor addresses to PCI memory space.
+ * PLB address 0xA0000000-0xDFFFFFFF ==> PCI address
+ * 0xA0000000-0xDFFFFFFF
+ * Use byte reversed out routines to handle endianess.
+ * Make this region non-prefetchable.
+ *-------------------------------------------------------------*/
/* PMM0 Mask/Attribute - disabled b4 setting */
out32r(PCIX0_PMM0MA, 0x00000000);
out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
@@ -520,12 +454,13 @@ void pci_target_init(struct pci_controller *hose)
void pci_master_init(struct pci_controller *hose)
{
unsigned short temp_short;
+ if (!board_with_pci()) { return; }
- /*---------------------------------------------------------------+
- | Write the PowerPC440 EP PCI Configuration regs.
- | Enable PowerPC440 EP to be a master on the PCI bus (PMM).
- | Enable PowerPC440 EP to act as a PCI memory target (PTM).
- +--------------------------------------------------------------*/
+ /*---------------------------------------------------------------
+ * Write the PowerPC440 EP PCI Configuration regs.
+ * Enable PowerPC440 EP to be a master on the PCI bus (PMM).
+ * Enable PowerPC440 EP to act as a PCI memory target (PTM).
+ *--------------------------------------------------------------*/
pci_read_config_word(0, PCI_COMMAND, &temp_short);
pci_write_config_word(0, PCI_COMMAND,
temp_short | PCI_COMMAND_MASTER |
diff --git a/board/netstal/hcu5/init.S b/board/netstal/hcu5/init.S
index f3a379a..2b2dc52 100644
--- a/board/netstal/hcu5/init.S
+++ b/board/netstal/hcu5/init.S
@@ -39,41 +39,68 @@
tlbtab:
tlbtab_start
- /* vxWorks needs this entry for the Machine Check interrupt, */
- tlbentry( 0x40000000, SZ_256M, 0, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+#ifdef CFG_TLB_FOR_BOOT_FLASH
+ /* TLB#0: vxWorks needs this entry for the Machine Check interrupt, */
+ tlbentry( 0x40000000, SZ_256M, 0, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
+ /* TLB#1: TLB-entry for DDR SDRAM (Up to 2GB) */
+ tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
+
+ /* TLB#2: TLB-entry for EBC */
+ tlbentry( 0x80000000, SZ_256M, 0x80000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
/*
- * BOOT_CS (FLASH) must be second. Before relocation SA_I can be off to use the
+ * TLB#3: BOOT_CS (FLASH) must be forth. Before relocation SA_I can be off to use the
* speed up boot process. It is patched after relocation to enable SA_I
*/
tlbentry( CFG_BOOT_BASE_ADDR, SZ_1M, CFG_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G )
- /* TLB-entry for PCI Memory */
- tlbentry( CFG_PCI_MEMBASE, SZ_256M, CFG_PCI_MEMBASE, 1, AC_R|AC_W|SA_G|SA_I )
+#else
+ tlbentry( CFG_BOOT_BASE_ADDR, SZ_1M, CFG_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G )
+#endif
+
+ /*
+ * TLB entries for SDRAM are not needed on this platform.
+ * They are dynamically generated in the SPD DDR(2) detection
+ * routine.
+ */
+
+ /* TLB#4: */
tlbentry( CFG_PCI_MEMBASE1, SZ_256M, CFG_PCI_MEMBASE1, 1, AC_R|AC_W|SA_G|SA_I )
+ /* TLB#5: */
tlbentry( CFG_PCI_MEMBASE2, SZ_256M, CFG_PCI_MEMBASE2, 1, AC_R|AC_W|SA_G|SA_I )
+ /* TLB#6: */
tlbentry( CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 1, AC_R|AC_W|SA_G|SA_I )
- /* TLB-entry for EBC (CFG_CPLD) */
- /* tlbentry( CFG_CPLD, SZ_1K, CFG_CPLD, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) */
- /* CAN */
- tlbentry( CFG_CS_1, SZ_16M, CFG_CS_1, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
- /* IMC + CPLD */
- tlbentry( CFG_CS_2, SZ_16M, CFG_CS_2, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
- tlbentry( CFG_CS_2 + 0x1000000, SZ_16M, CFG_CS_2 + 0x1000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
- /* IMC-Fast */
- tlbentry( CFG_CS_3, SZ_16M, CFG_CS_3, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
- tlbentry( CFG_CS_3 + 0x1000000, SZ_16M, CFG_CS_3 + 0x1000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
-
/* TLB-entry for Internal Registers & OCM */
- tlbentry( CFG_PCI_BASE, SZ_16M, 0xe0000000, 0, AC_R|AC_W|AC_X|SA_I )
+ /* TLB#7: */
+ tlbentry( 0xe0000000, SZ_16M, 0xe0000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
/*TLB-entry PCI registers*/
+ /* TLB#8: */
tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
/* TLB-entry for peripherals */
+ /* TLB#9: */
tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
- /* TLB for SDRAM will be added by initdram (sdram.c) */
+ /* CAN */
+ /* TLB#10: */
+ tlbentry( CFG_CS_1, SZ_1K, CFG_CS_1, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+
+ /* TLB#11: CPLD and IMC-Standard 32 MB */
+ tlbentry( CFG_CS_2, SZ_16M, CFG_CS_2, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+
+ /* TLB#12: */
+ tlbentry( CFG_CS_2 + 0x1000000, SZ_16M, CFG_CS_2 + 0x1000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+ /* IMC-Fast 32 MB */
+ /* TLB#13: */
+ tlbentry( CFG_CS_3, SZ_16M, CFG_CS_3, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+ /* TLB#14: */
+ tlbentry( CFG_CS_3 + 0x1000000, SZ_16M, CFG_CS_3, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+
+#ifndef CFG_TLB_FOR_BOOT_FLASH
+ /* TLB#15: */
+ tlbentry( CFG_CS_3 + 0x1000000, SZ_16M, CFG_CS_3 + 0x1000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+#endif
tlbtab_end
diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c
index cbb2839..53812f5 100644
--- a/board/netstal/hcu5/sdram.c
+++ b/board/netstal/hcu5/sdram.c
@@ -62,11 +62,8 @@ void dflush(void);
#define DDR0_22_CTRL_RAW_ECC_ENABLE 0x03000000 /* ECC correcting on */
#define DDR0_03_CASLAT_DECODE(n) ((((unsigned long)(n))>>16)&0x7)
-#ifdef CFG_ENABLE_SDRAM_CACHE
-#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on DDR2 */
-#else
-#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on DDR2 */
-#endif
+#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE
+ /* disable caching on DDR2 */
void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
@@ -157,38 +154,36 @@ static void blank_string(int size)
/*---------------------------------------------------------------------------+
* program_ecc.
*---------------------------------------------------------------------------*/
-static void program_ecc(unsigned long start_address, unsigned long num_bytes,
- unsigned long tlb_word2_i_value)
+static void program_ecc(unsigned long start_address, unsigned long num_bytes)
{
- unsigned long current_address= start_address;
- int loopi = 0;
u32 val;
-
char str[] = "ECC generation -";
- char slash[] = "\\|/-\\|/-";
+#if defined(CONFIG_PRAM)
+ u32 *magic;
+
+ /* Check whether vxWorks is using EDR logging, if yes zero */
+ /* also PostMortem and user reserved memory */
+ magic= (u32 *) (start_address + num_bytes
+ - (CONFIG_PRAM*1024) + sizeof(u32));
+
+ debug("\n%s: CONFIG_PRAM %d kB magic 0x%x 0x%p -> 0x%x\n", __FUNCTION__,
+ CONFIG_PRAM,
+ start_address + num_bytes - (CONFIG_PRAM*1024) + sizeof(u32),
+ magic, *magic);
+ if (*magic == 0xbeefbabe)
+ num_bytes -= (CONFIG_PRAM*1024) - PM_RESERVED_MEM;
+#endif
+
sync();
eieio();
puts(str);
- if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) {
- /* ECC bit set method for non-cached memory */
- /* This takes various seconds */
- for(current_address = 0; current_address < num_bytes;
- current_address += sizeof(u32)) {
- *(u32 *)current_address = 0;
- if ((current_address % (2 << 20)) == 0) {
- putc('\b');
- putc(slash[loopi++ % 8]);
- }
- }
- } else {
- /* ECC bit set method for cached memory */
- /* Fast method, no noticeable delay */
- dcbz_area(start_address, num_bytes);
- dflush();
- }
+ /* ECC bit set method for cached memory */
+ /* Fast method, no noticeable delay */
+ dcbz_area(start_address, num_bytes);
+ dflush();
blank_string(strlen(str));
/* Clear error status */
@@ -196,7 +191,7 @@ static void program_ecc(unsigned long start_address, unsigned long num_bytes,
mtsdram(DDR0_00, val | DDR0_00_INT_ACK_ALL);
/*
- * Clear possible errors
+ * Clear possible ECC errors
* If not done, then we could get an interrupt later on when
* exceptions are enabled.
*/
@@ -212,6 +207,7 @@ static void program_ecc(unsigned long start_address, unsigned long num_bytes,
#endif
+
/***********************************************************************
*
* initdram -- 440EPx's DDR controller is a DENALI Core
@@ -233,23 +229,22 @@ long int initdram (int board_type)
mtsdram(DDR0_04, 0x0A020200);
mtsdram(DDR0_05, 0x02020307);
switch (*hwVersReg & HCU_HW_SDRAM_CONFIG_MASK) {
- case 0:
- dram_size = 128 * 1024 * 1024 ;
- mtsdram(DDR0_06, 0x0102C80D); /* 128MB RAM */
- mtsdram(DDR0_11, 0x000FC800); /* 128MB RAM */
- mtsdram(DDR0_43, 0x030A0300); /* 128MB RAM */
- break;
case 1:
dram_size = 256 * 1024 * 1024 ;
mtsdram(DDR0_06, 0x0102C812); /* 256MB RAM */
mtsdram(DDR0_11, 0x0014C800); /* 256MB RAM */
mtsdram(DDR0_43, 0x030A0200); /* 256MB RAM */
break;
+ case 0:
default:
- sdram_panic(INVALID_HW_CONFIG);
+ dram_size = 128 * 1024 * 1024 ;
+ mtsdram(DDR0_06, 0x0102C80D); /* 128MB RAM */
+ mtsdram(DDR0_11, 0x000FC800); /* 128MB RAM */
+ mtsdram(DDR0_43, 0x030A0300); /* 128MB RAM */
break;
}
mtsdram(DDR0_07, 0x00090100);
+
/*
* TCPD=200 cycles of clock input is required to lock the DLL.
* CKE must be HIGH the entire time.mtsdram(DDR0_08, 0x02C80001);
@@ -288,7 +283,7 @@ long int initdram (int board_type)
* Program tlb entries for this size (dynamic)
*/
remove_tlb(CFG_SDRAM_BASE, 256 << 20);
- program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE);
+ program_tlb(0, 0, dram_size, TLB_WORD2_W_ENABLE | TLB_WORD2_I_ENABLE);
/*
* Setup 2nd TLB with same physical address but different virtual
@@ -296,14 +291,13 @@ long int initdram (int board_type)
*/
program_tlb(0, CFG_DDR_CACHED_ADDR, dram_size, 0);
- /* Diminish RAM to initialize */
- dram_size = dram_size - 32 ;
#ifdef CONFIG_DDR_ECC
/*
* If ECC is enabled, initialize the parity bits.
*/
- program_ecc(CFG_DDR_CACHED_ADDR, dram_size, 0);
+ program_ecc(CFG_DDR_CACHED_ADDR, dram_size);
#endif
return (dram_size);
}
+
--
1.5.2.5
--
Niklaus Giger
Netstal Maschinen AG
CH-8752 Naefels
More information about the U-Boot
mailing list