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General code modification for mpc7448hpc2 board support.

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1. Add 7447A and 7448 processor support.
2. Add the following flags.

CFG_CONFIG_BUS_CLK : If the 74xx bus frequency can be configured dynamically
(such as by switch on board), this flag should be set.

CFG_EXCEPTION_AFTER_RELOCATE: If an exception occurs after the u-boot
relocates to RAM, this flag should be set.

CFG_SERIAL_HANG_IN_EXCEPTION: If the print out function will cause the
system hang in exception, this flag should be set.

There is a design issue for tsi108/109 pci configure  read. When pci scan
the slots, if there is no pci card, the tsi108/9 will cause a machine
check exception for mpc7448 processor.

Signed-off-by: Alexandre Bounine <alexandreb@tundra.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
master
roy zang 18 years ago committed by Zang Tiefei
parent 69366bf42f
commit 4c52783b3d
10 changed files with 136 additions and 24 deletions
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  1. 4
      MAKEALL
  2. 3
      Makefile
  3. 22
      README
  4. 54
      cpu/74xx_7xx/cpu.c
  5. 2
      cpu/74xx_7xx/cpu_init.c
  6. 55
      cpu/74xx_7xx/speed.c
  7. 6
      drivers/Makefile
  8. 1
      include/74xx_7xx.h
  9. 3
      include/asm-ppc/global_data.h
  10. 10
      lib_ppc/extable.c

4
MAKEALL
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@ -150,8 +150,8 @@ LIST_85xx=" \
#########################################################################
LIST_74xx=" \
DB64360 DB64460 EVB64260 P3G4 \
PCIPPC2 PCIPPC6 ZUMA \
DB64360 DB64460 EVB64260 mpc7448hpc2 \
P3G4 PCIPPC2 PCIPPC6 ZUMA \
"
LIST_7xx=" \

3
Makefile
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@ -1718,6 +1718,9 @@ EVB64260_config \
EVB64260_750CX_config: unconfig
@$(MKCONFIG) EVB64260 ppc 74xx_7xx evb64260
mpc7448hpc2_config: unconfig
@./mkconfig $(@:_config=) ppc 74xx_7xx mpc7448hpc2
P3G4_config: unconfig
@$(MKCONFIG) $(@:_config=) ppc 74xx_7xx evb64260

22
README
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@ -2312,17 +2312,17 @@ configurations; the following names are supported:
csb272_config lwmon_config sbc8260_config
CU824_config MBX860T_config sbc8560_33_config
DUET_ADS_config MBX_config sbc8560_66_config
EBONY_config MPC8260ADS_config SM850_config
ELPT860_config MPC8540ADS_config SPD823TS_config
ESTEEM192E_config MPC8540EVAL_config stxgp3_config
ETX094_config MPC8560ADS_config SXNI855T_config
FADS823_config NETVIA_config TQM823L_config
FADS850SAR_config omap1510inn_config TQM850L_config
FADS860T_config omap1610h2_config TQM855L_config
FPS850L_config omap1610inn_config TQM860L_config
omap5912osk_config walnut_config
omap2420h4_config Yukon8220_config
ZPC1900_config
EBONY_config mpc7448hpc2_config SM850_config
ELPT860_config MPC8260ADS_config SPD823TS_config
ESTEEM192E_config MPC8540ADS_config stxgp3_config
ETX094_config MPC8540EVAL_config SXNI855T_config
FADS823_config NMPC8560ADS_config TQM823L_config
FADS850SAR_config NETVIA_config TQM850L_config
FADS860T_config omap1510inn_config TQM855L_config
FPS850L_config omap1610h2_config TQM860L_config
omap1610inn_config walnut_config
omap5912osk_config Yukon8220_config
omap2420h4_config ZPC1900_config
Note: for some board special configuration names may exist; check if
additional information is available from the board vendor; for

54
cpu/74xx_7xx/cpu.c
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@ -44,6 +44,10 @@
#include <74xx_7xx.h>
#include <asm/cache.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#endif
#ifdef CONFIG_AMIGAONEG3SE
#include "../board/MAI/AmigaOneG3SE/via686.h"
#include "../board/MAI/AmigaOneG3SE/memio.h"
@ -101,6 +105,14 @@ get_cpu_type(void)
type = CPU_7457;
break;
case 0x8003:
type = CPU_7447A;
break;
case 0x8004:
type = CPU_7448;
break;
default:
break;
}
@ -164,6 +176,14 @@ int checkcpu (void)
str = "MPC7457";
break;
case CPU_7447A:
str = "MPC7447A";
break;
case CPU_7448:
str = "MPC7448";
break;
default:
printf("Unknown CPU -- PVR: 0x%08x\n", pvr);
return -1;
@ -256,20 +276,19 @@ do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
/*
* For the 7400 the TB clock runs at 1/4 the cpu bus speed.
*/
#ifdef CONFIG_AMIGAONEG3SE
#if defined(CONFIG_AMIGAONEG3SE) || defined(CFG_CONFIG_BUS_CLK)
unsigned long get_tbclk(void)
{
return (gd->bus_clk / 4);
}
#else /* ! CONFIG_AMIGAONEG3SE */
#else /* ! CONFIG_AMIGAONEG3SE and !CFG_CONFIG_BUS_CLK*/
unsigned long get_tbclk (void)
{
return CFG_BUS_HZ / 4;
}
#endif /* CONFIG_AMIGAONEG3SE */
#endif /* CONFIG_AMIGAONEG3SE or CFG_CONFIG_BUS_CLK*/
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_WATCHDOG)
#if !defined(CONFIG_PCIPPC2) && !defined(CONFIG_BAB7xx)
void
@ -281,3 +300,30 @@ watchdog_reset(void)
#endif /* CONFIG_WATCHDOG */
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_OF_FLAT_TREE
void
ft_cpu_setup(void *blob, bd_t *bd)
{
u32 *p;
ulong clock;
int len;
clock = bd->bi_busfreq;
p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
if (p != NULL)
*p = cpu_to_be32(clock);
#if defined(CONFIG_TSI108_ETH)
p = ft_get_prop(blob, "/" OF_TSI "/ethernet@6200/address", &len);
memcpy(p, bd->bi_enetaddr, 6);
#endif
#if defined(CONFIG_HAS_ETH1)
p = ft_get_prop(blob, "/" OF_TSI "/ethernet@6600/address", &len);
memcpy(p, bd->bi_enet1addr, 6);
#endif
}
#endif
/* ------------------------------------------------------------------------- */

2
cpu/74xx_7xx/cpu_init.c
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@ -43,6 +43,8 @@ cpu_init_f (void)
case CPU_7450:
case CPU_7455:
case CPU_7457:
case CPU_7447A:
case CPU_7448:
/* enable the timebase bit in HID0 */
set_hid0(get_hid0() | 0x4000000);
break;

55
cpu/74xx_7xx/speed.c
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@ -31,6 +31,8 @@
DECLARE_GLOBAL_DATA_PTR;
extern unsigned long get_board_bus_clk(void);
static const int hid1_multipliers_x_10[] = {
25, /* 0000 - 2.5x */
75, /* 0001 - 7.5x */
@ -50,6 +52,41 @@ static const int hid1_multipliers_x_10[] = {
0 /* 1111 - off */
};
static const int hid1_7447A_multipliers_x_10[] = {
115, /* 00000 - 11.5x */
170, /* 00001 - 17x */
75, /* 00010 - 7.5x */
150, /* 00011 - 15x */
70, /* 00100 - 7x */
180, /* 00101 - 18x */
10, /* 00110 - bypass */
200, /* 00111 - 20x */
20, /* 01000 - 2x */
210, /* 01001 - 21x */
65, /* 01010 - 6.5x */
130, /* 01011 - 13x */
85, /* 01100 - 8.5x */
240, /* 01101 - 13x */
95, /* 01110 - 9.5x */
90, /* 01111 - 9x */
30, /* 10000 - 3x */
105, /* 10001 - 10.5x */
55, /* 10010 - 5.5x */
110, /* 10011 - 11x */
40, /* 10100 - 4x */
100, /* 10101 - 10x */
50, /* 10110 - 5x */
120, /* 10111 - 12x */
80, /* 11000 - 8x */
140, /* 11001 - 14x */
60, /* 11010 - 6x */
160, /* 11011 - 16x */
135, /* 11100 - 13.5x */
280, /* 11101 - 28x */
0, /* 11110 - off */
125 /* 11111 - 12.5x */
};
static const int hid1_fx_multipliers_x_10[] = {
00, /* 0000 - off */
00, /* 0001 - off */
@ -89,8 +126,19 @@ int get_clocks (void)
{
ulong clock = 0;
#ifdef CFG_CONFIG_BUS_CLK
gd->bus_clk = get_board_bus_clk();
#else
gd->bus_clk = CFG_BUS_CLK;
#endif
/* calculate the clock frequency based upon the CPU type */
switch (get_cpu_type()) {
case CPU_7447A:
case CPU_7448:
clock = (gd->bus_clk / 10) * hid1_7447A_multipliers_x_10[(get_hid1 () >> 12) & 0x1F];
break;
case CPU_7455:
case CPU_7457:
/*
@ -98,12 +146,12 @@ int get_clocks (void)
* Make sure division is done before multiplication to prevent 32-bit
* arithmetic overflows which will cause a negative number
*/
clock = (CFG_BUS_CLK / 10) * hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF];
clock = (gd->bus_clk / 10) * hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF];
break;
case CPU_750GX:
case CPU_750FX:
clock = CFG_BUS_CLK * hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10;
clock = gd->bus_clk * hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10;
break;
case CPU_7450:
@ -120,7 +168,7 @@ int get_clocks (void)
* Make sure division is done before multiplication to prevent 32-bit
* arithmetic overflows which will cause a negative number
*/
clock = (CFG_BUS_CLK / 10) * hid1_multipliers_x_10[get_hid1 () >> 28];
clock = (gd->bus_clk / 10) * hid1_multipliers_x_10[get_hid1 () >> 28];
break;
case CPU_UNKNOWN:
@ -130,7 +178,6 @@ int get_clocks (void)
}
gd->cpu_clk = clock;
gd->bus_clk = CFG_BUS_CLK;
return (0);
}

6
drivers/Makefile
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@ -35,8 +35,8 @@ COBJS = 3c589.o 5701rls.o ali512x.o atmel_usart.o \
lan91c96.o \
natsemi.o ne2000.o netarm_eth.o netconsole.o \
ns16550.o ns8382x.o ns87308.o ns7520_eth.o omap1510_i2c.o \
omap24xx_i2c.o pci.o pci_auto.o pci_indirect.o \
pcnet.o plb2800_eth.o \
omap24xx_i2c.o pci.o pci_auto.o pci_indirect.o tsi108_pci.o\
tsi108_i2c.o pcnet.o plb2800_eth.o \
ps2ser.o ps2mult.o pc_keyb.o \
rtl8019.o rtl8139.o rtl8169.o \
s3c4510b_eth.o s3c4510b_uart.o \
@ -45,7 +45,7 @@ COBJS = 3c589.o 5701rls.o ali512x.o atmel_usart.o \
serial_pl010.o serial_pl011.o serial_xuartlite.o \
sl811_usb.o sm501.o smc91111.o smiLynxEM.o \
status_led.o sym53c8xx.o ahci.o \
ti_pci1410a.o tigon3.o tsec.o \
ti_pci1410a.o tigon3.o tsec.o tsi108_eth.o\
usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbtty.o \
videomodes.o w83c553f.o \
ks8695eth.o \

1
include/74xx_7xx.h
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@ -112,6 +112,7 @@ typedef enum __cpu_t {
CPU_7400,
CPU_7410,
CPU_7450, CPU_7455, CPU_7457,
CPU_7447A, CPU_7448,
CPU_UNKNOWN} cpu_t;
extern cpu_t get_cpu_type(void);

3
include/asm-ppc/global_data.h
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@ -49,6 +49,9 @@ typedef struct global_data {
unsigned long scc_clk;
unsigned long brg_clk;
#endif
#if defined(CONFIG_MPC7448HPC2)
unsigned long mem_clk;
#endif
#if defined(CONFIG_MPC83XX)
/* There are other clocks in the MPC83XX */
u32 csb_clk;

10
lib_ppc/extable.c
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@ -50,14 +50,22 @@ search_one_table(const struct exception_table_entry *first,
const struct exception_table_entry *last,
unsigned long value)
{
DECLARE_GLOBAL_DATA_PTR;
while (first <= last) {
const struct exception_table_entry *mid;
long diff;
mid = (last - first) / 2 + first;
#ifdef CFG_EXCEPTION_AFTER_RELOCATE
diff = (mid->insn + gd->reloc_off) - value;
if (diff == 0)
return (mid->fixup + gd->reloc_off);
#else
diff = mid->insn - value;
if (diff == 0)
return mid->fixup;
#endif
else if (diff < 0)
first = mid+1;
else
@ -75,8 +83,10 @@ search_exception_table(unsigned long addr)
/* There is only the kernel to search. */
ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr);
#if !defined(CFG_SERIAL_HANG_IN_EXCEPTION)
if (ex_tab_message)
printf("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret);
#endif
if (ret) return ret;
return 0;

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