[U-Boot-Users] [PATCH] ppc_4xx: Netstal HCU4 board: added various fixes and POST
Niklaus Giger
niklaus.giger at netstal.com
Wed Jan 16 18:39:20 CET 2008
- Moved some common code to netstal/common/nm_bsp.c.
- sdram initialisation goes go netstal/common/fixed_sdram.c.
- Added support for POST.
- Stylistic cleanups (multi-line comments/ enforce 80 colomn width)
Signed-off-by: Niklaus Giger <niklaus.giger at netstal.com>
---
board/netstal/hcu4/Makefile | 4 +-
board/netstal/hcu4/hcu4.c | 340 ++++++++++---------------------------------
2 files changed, 77 insertions(+), 267 deletions(-)
diff --git a/board/netstal/hcu4/Makefile b/board/netstal/hcu4/Makefile
index af90821..c0d719f 100644
--- a/board/netstal/hcu4/Makefile
+++ b/board/netstal/hcu4/Makefile
@@ -22,10 +22,12 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
+vpath fixed_sdram.c ../common
vpath hcu_flash.c ../common
+vpath nm_bsp.c ../common
# NOBJS : Netstal common objects
-NOBJS = hcu_flash.o
+NOBJS = fixed_sdram.o hcu_flash.o nm_bsp.o
COBJS = $(BOARD).o
SOBJS =
diff --git a/board/netstal/hcu4/hcu4.c b/board/netstal/hcu4/hcu4.c
index 48a3f13..714b98e 100644
--- a/board/netstal/hcu4/hcu4.c
+++ b/board/netstal/hcu4/hcu4.c
@@ -23,32 +23,16 @@
#include <asm/processor.h>
#include <asm/io.h>
#include <asm-ppc/u-boot.h>
-#include "../common/nm_bsp.c"
+#include "../common/nm.h"
DECLARE_GLOBAL_DATA_PTR;
#define HCU_MACH_VERSIONS_REGISTER (0x7C000000 + 0xF00000)
+#define SYS_SLOT_ADDRESS (0x7C000000 + 0x400000)
+#define HCU3_DIGITAL_IO_REGISTER (0x7C000000 + 0x500000)
+#define HCU_SW_INSTALL_REQUESTED 0x10
-#define SDRAM_LEN 32*1024*1024 /* 32 MB -RAM */
-
-#define DO_UGLY_SDRAM_WORKAROUND
-
-enum {
- /* HW_GENERATION_HCU wird nicht mehr unterstuetzt */
- HW_GENERATION_HCU2 = 0x10,
- HW_GENERATION_HCU3 = 0x10,
- HW_GENERATION_HCU4 = 0x20,
- HW_GENERATION_MCU = 0x08,
- HW_GENERATION_MCU20 = 0x0a,
- HW_GENERATION_MCU25 = 0x09,
-};
-
-void hcu_led_set(u32 value);
-long int spd_sdram(int(read_spd)(uint addr));
-
-#ifdef CONFIG_SPD_EEPROM
-#define DEBUG
-#endif
+#undef DEBUG
#if defined(DEBUG)
void show_sdram_registers(void);
@@ -69,6 +53,7 @@ void show_sdram_registers(void);
/* Attention: If you want 1 microsecs times from the external oscillator
* use 0x00804051. But this causes problems with u-boot and linux!
*/
+#define CPC0_CR0_VALUE 0x0030103c
#define CPC0_CR1_VALUE 0x00004051
#define CPC0_ECR 0xaa /* Edge condition register */
#define EBC0_CFG 0x23 /* External Peripheral Control Register */
@@ -77,18 +62,18 @@ void show_sdram_registers(void);
int board_early_init_f (void)
{
- /*-------------------------------------------------------------------+
- | Interrupt controller setup for the HCU4 board.
- | Note: IRQ 0-15 405GP internally generated; high; level sensitive
- | IRQ 16 405GP internally generated; low; level sensitive
- | IRQ 17-24 RESERVED/UNUSED
- | IRQ 31 (EXT IRQ 6) (unused)
- +-------------------------------------------------------------------*/
+ /*
+ * Interrupt controller setup for the HCU4 board.
+ * Note: IRQ 0-15 405GP internally generated; high; level sensitive
+ * IRQ 16 405GP internally generated; low; level sensitive
+ * IRQ 17-24 RESERVED/UNUSED
+ * IRQ 31 (EXT IRQ 6) (unused)
+ */
mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr (uicer, 0x00000000); /* disable all ints */
mtdcr (uiccr, 0x00000000); /* set all to be non-critical */
- mtdcr (uicpr, 0xFFFFFF87); /* set int polarities */
- mtdcr (uictr, 0x10000000); /* set int trigger levels */
+ mtdcr (uicpr, 0xFFFFE000); /* set int polarities */
+ mtdcr (uictr, 0x00000000); /* set int trigger levels */
mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr(CPC0_CR1, CPC0_CR1_VALUE);
@@ -105,47 +90,44 @@ int board_pre_init (void)
}
#endif
+int sys_install_requested(void)
+{
+ u16 *ioValuePtr = (u16 *)HCU3_DIGITAL_IO_REGISTER;
+ return (in_be16(ioValuePtr) & HCU_SW_INSTALL_REQUESTED) != 0;
+}
+
int checkboard (void)
{
- unsigned int j;
- u16 *boardVersReg = (u16 *) HCU_MACH_VERSIONS_REGISTER;
- u16 generation = *boardVersReg & 0xf0;
- u16 index = *boardVersReg & 0x0f;
+ u16 *boardVersReg = (u16 *)HCU_MACH_VERSIONS_REGISTER;
+ u16 generation = in_be16(boardVersReg) & 0xf0;
+ u16 index = in_be16(boardVersReg) & 0x0f;
+ /* Cannot be done, in board_early_init */
+ mtdcr(CPC0_CR0, CPC0_CR0_VALUE);
/* Force /RTS to active. The board it not wired quite
- correctly to use cts/rtc flow control, so just force the
- /RST active and forget about it. */
+ * correctly to use cts/rtc flow control, so just force the
+ * /RST active and forget about it.
+ */
writeb (readb (0xef600404) | 0x03, 0xef600404);
- printf ("\nNetstal Maschinen AG ");
- if (generation == HW_GENERATION_HCU3)
- printf ("HCU3: index %d\n\n", index);
- else if (generation == HW_GENERATION_HCU4)
- printf ("HCU4: index %d\n\n", index);
- hcu_led_set(0);
- for (j = 0; j < 7; j++) {
- hcu_led_set(1 << j);
- udelay(50 * 1000);
- }
+ nm_show_print(generation, index, 0);
return 0;
}
u32 hcu_led_get(void)
{
- return (~((*(u32 *)GPIO0_OR)) >> 23) & 0xff;
+ return (~(in_be32((u32 *)GPIO0_OR)) >> 23) & 0xff;
}
-/*---------------------------------------------------------------------------+
+/*
* hcu_led_set value to be placed into the LEDs (max 6 bit)
- *---------------------------------------------------------------------------*/
+ */
void hcu_led_set(u32 value)
{
u32 tmp = ~value;
- u32 *ledReg;
tmp = (tmp << 23) | 0x7FFFFF;
- ledReg = (u32 *)GPIO0_OR;
- *ledReg = tmp;
+ out_be32((u32 *)GPIO0_OR, tmp);
}
/*
@@ -157,246 +139,72 @@ void sdram_init(void)
return;
}
-#if defined(DEBUG)
-void show_sdram_registers(void)
-{
- u32 value;
-
- printf ("SDRAM Controller Registers --\n");
- mfsdram(mem_mcopt1, value);
- printf (" SDRAM0_CFG : 0x%08x\n", value);
- mfsdram(mem_status, value);
- printf (" SDRAM0_STATUS: 0x%08x\n", value);
- mfsdram(mem_mb0cf, value);
- printf (" SDRAM0_B0CR : 0x%08x\n", value);
- mfsdram(mem_mb1cf, value);
- printf (" SDRAM0_B1CR : 0x%08x\n", value);
- mfsdram(mem_sdtr1, value);
- printf (" SDRAM0_TR : 0x%08x\n", value);
- mfsdram(mem_rtr, value);
- printf (" SDRAM0_RTR : 0x%08x\n", value);
-}
-#endif
-
/*
- * this is even after checkboard. It returns the size of the SDRAM
- * that we have installed. This function is called by board_init_f
- * in lib_ppc/board.c to initialize the memory and return what I
- * found. These are default value, which will be overridden later.
+ * hcu_get_slot
*/
-
-long int fixed_hcu4_sdram (int board_type)
+u32 hcu_get_slot(void)
{
-#ifdef DEBUG
- printf (__FUNCTION__);
-#endif
- /* disable memory controller */
- mtdcr (memcfga, mem_mcopt1);
- mtdcr (memcfgd, 0x00000000);
-
- udelay (500);
-
- /* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */
- mtdcr (memcfga, mem_besra);
- mtdcr (memcfgd, 0xffffffff);
-
- /* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */
- mtdcr (memcfga, mem_besrb);
- mtdcr (memcfgd, 0xffffffff);
-
- /* Clear SDRAM0_ECCCFG (disable ECC) */
- mtdcr (memcfga, mem_ecccf);
- mtdcr (memcfgd, 0x00000000);
-
- /* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */
- mtdcr (memcfga, mem_eccerr);
- mtdcr (memcfgd, 0xffffffff);
-
- /* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2
- * TODO ngngng
- */
- mtdcr (memcfga, mem_sdtr1);
- mtdcr (memcfgd, 0x008a4015);
-
- /* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1
- * TODO ngngng
- */
- mtdcr (memcfga, mem_mb0cf);
- mtdcr (memcfgd, 0x00062001);
-
- /* refresh timer = 0x400 */
- mtdcr (memcfga, mem_rtr);
- mtdcr (memcfgd, 0x04000000);
-
- /* Power management idle timer set to the default. */
- mtdcr (memcfga, mem_pmit);
- mtdcr (memcfgd, 0x07c00000);
-
- udelay (500);
-
- /* Enable banks (DCE=1, BPRF=1, ECCDD=1, EMDUL=1) TODO */
- mtdcr (memcfga, mem_mcopt1);
- mtdcr (memcfgd, 0x90800000);
-
-#ifdef DEBUG
- printf ("%s: done\n", __FUNCTION__);
-#endif
- return SDRAM_LEN;
+ u16 *slot = (u16 *)SYS_SLOT_ADDRESS;
+ return in_be16(slot) & 0x7f;
}
-/*---------------------------------------------------------------------------+
- * hcu_serial_number
- *---------------------------------------------------------------------------*/
-static u32 hcu_serial_number(void)
+/*
+ * get_serial_number
+ */
+u32 get_serial_number(void)
{
u32 *serial = (u32 *)CFG_FLASH_BASE;
- if (*serial == 0xffffffff)
- return get_ticks();
+ if (in_be32(serial) == 0xffffffff)
+ return 0;
- return *serial;
+ return in_be32(serial);
}
-/*---------------------------------------------------------------------------+
+/*
* misc_init_r.
- *---------------------------------------------------------------------------*/
+ */
int misc_init_r(void)
{
- char *s = getenv("ethaddr");
- char *e;
- int i;
- u32 serial = hcu_serial_number();
-
- 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];
- /* [0..3] 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] = (serial >> 0) & 0xff;
- 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 ("ethaddr", ethaddr);
- }
+ common_misc_init_r();
+ set_params_for_sw_install( sys_install_requested(), "hcu4" );
return 0;
}
-#ifdef DO_UGLY_SDRAM_WORKAROUND
-#include "i2c.h"
-
-void set_spd_default_value(unsigned int spd_addr,uchar def_val)
-{
- uchar value;
- int res = i2c_read(SPD_EEPROM_ADDRESS, spd_addr, 1, &value, 1) ;
-
- if (res == 0 && value == 0xff) {
- res = i2c_write(SPD_EEPROM_ADDRESS,
- spd_addr, 1, &def_val, 1) ;
-#ifdef DEBUG
- printf("%s: Setting spd offset %3d to %3d res %d\n",
- __FUNCTION__, spd_addr, def_val, res);
-#endif
- }
-}
-#endif
-
long int initdram(int board_type)
{
long dram_size = 0;
-
-#if !defined(CONFIG_SPD_EEPROM)
- dram_size = fixed_hcu4_sdram();
-#else
-#ifdef DO_UGLY_SDRAM_WORKAROUND
- /* Workaround if you have no working I2C-EEPROM-SPD-configuration */
- i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
- set_spd_default_value(2, 4); /* SDRAM Type */
- set_spd_default_value(7, 0); /* module width, high byte */
- set_spd_default_value(12, 1); /* Refresh or 0x81 */
-
- /* Only correct for HCU3 with 32 MB RAM*/
- /* Number of bytes used by module manufacturer */
- set_spd_default_value( 0, 128);
- set_spd_default_value( 1, 11 ); /* Total SPD memory size */
- set_spd_default_value( 2, 4 ); /* Memory type */
- set_spd_default_value( 3, 12 ); /* Number of row address bits */
- set_spd_default_value( 4, 9 ); /* Number of column address bits */
- set_spd_default_value( 5, 1 ); /* Number of module rows */
- set_spd_default_value( 6, 32 ); /* Module data width, LSB */
- set_spd_default_value( 7, 0 ); /* Module data width, MSB */
- set_spd_default_value( 8, 1 ); /* Module interface signal levels */
- /* SDRAM cycle time for highest CL (Tclk) */
- set_spd_default_value( 9, 112);
- /* SDRAM access time from clock for highest CL (Tac) */
- set_spd_default_value(10, 84 );
- set_spd_default_value(11, 2 ); /* Module configuration type */
- set_spd_default_value(12, 128); /* Refresh rate/type */
- set_spd_default_value(13, 16 ); /* Primary SDRAM width */
- set_spd_default_value(14, 8 ); /* Error Checking SDRAM width */
- /* SDRAM device attributes, min clock delay for back to back */
- /*random column addresses (Tccd) */
- set_spd_default_value(15, 1 );
- /* SDRAM device attributes, burst lengths supported */
- set_spd_default_value(16, 143);
- /* SDRAM device attributes, number of banks on SDRAM device */
- set_spd_default_value(17, 4 );
- /* SDRAM device attributes, CAS latency */
- set_spd_default_value(18, 6 );
- /* SDRAM device attributes, CS latency */
- set_spd_default_value(19, 1 );
- /* SDRAM device attributes, WE latency */
- set_spd_default_value(20, 1 );
- set_spd_default_value(21, 0 ); /* SDRAM module attributes */
- /* SDRAM device attributes, general */
- set_spd_default_value(22, 14 );
- /* SDRAM cycle time for 2nd highest CL (Tclk) */
- set_spd_default_value(23, 117);
- /* SDRAM access time from clock for2nd highest CL (Tac) */
- set_spd_default_value(24, 84 );
- /* SDRAM cycle time for 3rd highest CL (Tclk) */
- set_spd_default_value(25, 0 );
- /* SDRAM access time from clock for3rd highest CL (Tac) */
- set_spd_default_value(26, 0 );
- set_spd_default_value(27, 15 ); /* Minimum row precharge time (Trp) */
- /* Minimum row active to row active delay (Trrd) */
- set_spd_default_value(28, 14 );
- set_spd_default_value(29, 15 ); /* Minimum CAS to RAS delay (Trcd) */
- set_spd_default_value(30, 37 ); /* Minimum RAS pulse width (Tras) */
- set_spd_default_value(31, 8 ); /* Module bank density */
- /* Command and Address signal input setup time */
- set_spd_default_value(32, 21 );
- /* Command and Address signal input hold time */
- set_spd_default_value(33, 8 );
- set_spd_default_value(34, 21 ); /* Data signal input setup time */
- set_spd_default_value(35, 8 ); /* Data signal input hold time */
-#endif /* DO_UGLY_SDRAM_WORKAROUND */
- dram_size = spd_sdram(0);
-#endif
+ u16 *boardVersReg = (u16 *) HCU_MACH_VERSIONS_REGISTER;
+ u16 generation = in_be16(boardVersReg) & 0xf0;
+ if (generation == HW_GENERATION_HCU3)
+ dram_size = 32*1024*1024;
+ else dram_size = 64*1024*1024;
+ fixed_hcu4_sdram(dram_size);
#ifdef DEBUG
show_sdram_registers();
#endif
-#if defined(CFG_DRAM_TEST)
- bcu4_testdram(dram_size);
- printf("%s %d MB of SDRAM\n", __FUNCTION__, dram_size/(1024*1024));
-#endif
-
return dram_size;
}
+
+#if defined(CONFIG_POST)
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+int post_hotkeys_pressed(void)
+{
+ return 0; /* No hotkeys supported */
+}
+#endif /* CONFIG_POST */
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
--
1.5.2.5
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