General code modification for mpc7448hpc2 board support. 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
--- MAKEALL | 4 +-- Makefile | 3 ++ README | 22 ++++++++-------- cpu/74xx_7xx/cpu.c | 22 ++++++++++++++-- cpu/74xx_7xx/cpu_init.c | 2 + cpu/74xx_7xx/speed.c | 55 ++++++++++++++++++++++++++++++++++++++--- drivers/Makefile | 6 ++-- include/74xx_7xx.h | 1 + include/asm-ppc/global_data.h | 3 ++ lib_ppc/extable.c | 10 +++++++ 10 files changed, 105 insertions(+), 23 deletions(-)
diff --git a/MAKEALL b/MAKEALL index 467a9be..2f41936 100755 --- a/MAKEALL +++ b/MAKEALL @@ -139,8 +139,8 @@ ## 74xx/7xx Systems
######################################################################## #
LIST_74xx=" \ - DB64360 DB64460 EVB64260 P3G4 \ - PCIPPC2 PCIPPC6 ZUMA \ + DB64360 DB64460 EVB64260 mpc7448hpc2 \ + P3G4 PCIPPC2 PCIPPC6 ZUMA \ "
LIST_7xx=" \ diff --git a/Makefile b/Makefile index 128ae59..c910f39 100644 --- a/Makefile +++ b/Makefile @@ -1489,6 +1489,9 @@ 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
diff --git a/README b/README index e772c1a..f7f53d1 100644 --- a/README +++ b/README @@ -2289,17 +2289,17 @@ configurations; the following names are 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 diff --git a/cpu/74xx_7xx/cpu.c b/cpu/74xx_7xx/cpu.c index ca45e17..f159557 100644 --- a/cpu/74xx_7xx/cpu.c +++ b/cpu/74xx_7xx/cpu.c @@ -101,6 +101,14 @@ get_cpu_type(void) type = CPU_7457; break;
+ case 0x8003: + type = CPU_7447A; + break; + + case 0x8004: + type = CPU_7448; + break; + default: break; } @@ -164,6 +172,14 @@ 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; @@ -256,18 +272,18 @@ #endif /* * 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) diff --git a/cpu/74xx_7xx/cpu_init.c b/cpu/74xx_7xx/cpu_init.c index 93f180f..1dd1b2c 100644 --- a/cpu/74xx_7xx/cpu_init.c +++ b/cpu/74xx_7xx/cpu_init.c @@ -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; diff --git a/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c index 2dc5107..d520794 100644 --- a/cpu/74xx_7xx/speed.c +++ b/cpu/74xx_7xx/speed.c @@ -31,6 +31,8 @@ #endif
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); } diff --git a/drivers/Makefile b/drivers/Makefile index 9be95c7..8b18b37 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -35,8 +35,8 @@ OBJS = 3c589.o 5701rls.o ali512x.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 @@ OBJS = 3c589.o 5701rls.o ali512x.o \ serial_pl010.o serial_pl011.o serial_xuartlite.o \ sl811_usb.o sm501.o smc91111.o smiLynxEM.o \ status_led.o sym53c8xx.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 \ diff --git a/include/74xx_7xx.h b/include/74xx_7xx.h index a628798..7cd2f10 100644 --- a/include/74xx_7xx.h +++ b/include/74xx_7xx.h @@ -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); diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h index b73af96..166afbe 100644 --- a/include/asm-ppc/global_data.h +++ b/include/asm-ppc/global_data.h @@ -49,6 +49,9 @@ #if defined(CONFIG_CPM2) 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; diff --git a/lib_ppc/extable.c b/lib_ppc/extable.c index d92f142..34b5d46 100644 --- a/lib_ppc/extable.c +++ b/lib_ppc/extable.c @@ -50,14 +50,22 @@ search_one_table(const struct exception_ 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 add
/* 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;