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authorSergei Shtylylov <sshtylyov@ru.mvista.com>2006-02-04 07:11:14 -0500
committerRalf Baechle <ralf@linux-mips.org>2006-02-07 08:30:26 -0500
commitf09678af51caf93cbbb253b298be995e1145a577 (patch)
tree62ae8ee7154fa82b1ed756030728009c1fcddeec /arch
parentc226f2601f55010936f0f3c77ae167a02339f566 (diff)
[MIPS] TX49x7: Fix reporting of the CPU name and PCI clock
I've noticed that PCI clock was incorrectly reported as 66 MHz while being mere 33 MHz on RBTX4937 board -- this was due to the different encoding of the PCI divisor field in CCFG register between TX4927 and TX4937 chips... Also, RBTX49x7 was printed out as a CPU name (e.g., "CPU is RBTX4937"); and some debug printk() were duplicating each other... Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c10
-rw-r--r--arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c136
2 files changed, 97 insertions, 49 deletions
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
index e4d095d3e192..e19e2be70f76 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
@@ -60,7 +60,6 @@ void __init prom_init_cmdline(void)
60 60
61void __init prom_init(void) 61void __init prom_init(void)
62{ 62{
63 const char* toshiba_name_list[] = GROUP_TOSHIBA_NAMES;
64 extern int tx4927_get_mem_size(void); 63 extern int tx4927_get_mem_size(void);
65 extern char* toshiba_name; 64 extern char* toshiba_name;
66 int msize; 65 int msize;
@@ -69,12 +68,13 @@ void __init prom_init(void)
69 68
70 mips_machgroup = MACH_GROUP_TOSHIBA; 69 mips_machgroup = MACH_GROUP_TOSHIBA;
71 70
72 if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) 71 if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) {
73 mips_machtype = MACH_TOSHIBA_RBTX4927; 72 mips_machtype = MACH_TOSHIBA_RBTX4927;
74 else 73 toshiba_name = "TX4927";
74 } else {
75 mips_machtype = MACH_TOSHIBA_RBTX4937; 75 mips_machtype = MACH_TOSHIBA_RBTX4937;
76 76 toshiba_name = "TX4937";
77 toshiba_name = toshiba_name_list[mips_machtype]; 77 }
78 78
79 msize = tx4927_get_mem_size(); 79 msize = tx4927_get_mem_size();
80 add_memory_region(0, msize << 20, BOOT_MEM_RAM); 80 add_memory_region(0, msize << 20, BOOT_MEM_RAM);
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index 098132916cc8..2ad6401d2af4 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -539,19 +539,10 @@ void tx4927_pci_setup(void)
539 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, 539 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
540 "0x%08lx=mips_io_port_base", 540 "0x%08lx=mips_io_port_base",
541 mips_io_port_base); 541 mips_io_port_base);
542
543 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
544 "setup pci_io_resource to 0x%08lx 0x%08lx\n",
545 pci_io_resource.start,
546 pci_io_resource.end);
547 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
548 "setup pci_mem_resource to 0x%08lx 0x%08lx\n",
549 pci_mem_resource.start,
550 pci_mem_resource.end);
551
552 if (!called) { 542 if (!called) {
553 printk 543 printk
554 ("TX4927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n", 544 ("%s PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
545 toshiba_name,
555 (unsigned short) (tx4927_pcicptr->pciid >> 16), 546 (unsigned short) (tx4927_pcicptr->pciid >> 16),
556 (unsigned short) (tx4927_pcicptr->pciid & 0xffff), 547 (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
557 (unsigned short) (tx4927_pcicptr->pciccrev & 0xff), 548 (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
@@ -564,21 +555,52 @@ void tx4927_pci_setup(void)
564 (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : ""); 555 (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
565 if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) { 556 if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
566 int pciclk = 0; 557 int pciclk = 0;
567 switch ((unsigned long) tx4927_ccfgptr-> 558 if (mips_machtype == MACH_TOSHIBA_RBTX4937)
568 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) { 559 switch ((unsigned long) tx4927_ccfgptr->
569 case TX4927_CCFG_PCIDIVMODE_2_5: 560 ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
570 pciclk = tx4927_cpu_clock * 2 / 5; 561 case TX4937_CCFG_PCIDIVMODE_4:
571 break; 562 pciclk = tx4927_cpu_clock / 4;
572 case TX4927_CCFG_PCIDIVMODE_3: 563 break;
573 pciclk = tx4927_cpu_clock / 3; 564 case TX4937_CCFG_PCIDIVMODE_4_5:
574 break; 565 pciclk = tx4927_cpu_clock * 2 / 9;
575 case TX4927_CCFG_PCIDIVMODE_5: 566 break;
576 pciclk = tx4927_cpu_clock / 5; 567 case TX4937_CCFG_PCIDIVMODE_5:
577 break; 568 pciclk = tx4927_cpu_clock / 5;
578 case TX4927_CCFG_PCIDIVMODE_6: 569 break;
579 pciclk = tx4927_cpu_clock / 6; 570 case TX4937_CCFG_PCIDIVMODE_5_5:
580 break; 571 pciclk = tx4927_cpu_clock * 2 / 11;
581 } 572 break;
573 case TX4937_CCFG_PCIDIVMODE_8:
574 pciclk = tx4927_cpu_clock / 8;
575 break;
576 case TX4937_CCFG_PCIDIVMODE_9:
577 pciclk = tx4927_cpu_clock / 9;
578 break;
579 case TX4937_CCFG_PCIDIVMODE_10:
580 pciclk = tx4927_cpu_clock / 10;
581 break;
582 case TX4937_CCFG_PCIDIVMODE_11:
583 pciclk = tx4927_cpu_clock / 11;
584 break;
585 }
586
587 else
588 switch ((unsigned long) tx4927_ccfgptr->
589 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
590 case TX4927_CCFG_PCIDIVMODE_2_5:
591 pciclk = tx4927_cpu_clock * 2 / 5;
592 break;
593 case TX4927_CCFG_PCIDIVMODE_3:
594 pciclk = tx4927_cpu_clock / 3;
595 break;
596 case TX4927_CCFG_PCIDIVMODE_5:
597 pciclk = tx4927_cpu_clock / 5;
598 break;
599 case TX4927_CCFG_PCIDIVMODE_6:
600 pciclk = tx4927_cpu_clock / 6;
601 break;
602 }
603
582 printk("Internal(%dMHz)", pciclk / 1000000); 604 printk("Internal(%dMHz)", pciclk / 1000000);
583 } else { 605 } else {
584 int pciclk = 0; 606 int pciclk = 0;
@@ -823,17 +845,33 @@ void __init toshiba_rbtx4927_setup(void)
823 /* PCIC */ 845 /* PCIC */
824 /* 846 /*
825 * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz. 847 * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
826 * PCIDIVMODE[12:11]'s initial value are given by S9[4:3] (ON:0, OFF:1). 848 *
849 * For TX4927:
850 * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1).
827 * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5) 851 * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
828 * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3) 852 * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
829 * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5) 853 * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
830 * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6) 854 * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
831 * i.e. S9[3]: ON (83MHz), OFF (100MHz) 855 * i.e. S9[3]: ON (83MHz), OFF (100MHz)
856 *
857 * For TX4937:
858 * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1)
859 * PCIDIVMODE[10] is 0.
860 * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8)
861 * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4)
862 * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9)
863 * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5)
864 * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10)
865 * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5)
866 *
832 */ 867 */
833 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1, 868 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
834 "ccfg is %lx, DIV is %x\n", 869 "ccfg is %lx, PCIDIVMODE is %x\n",
835 (unsigned long) tx4927_ccfgptr-> 870 (unsigned long) tx4927_ccfgptr->ccfg,
836 ccfg, TX4927_CCFG_PCIDIVMODE_MASK); 871 (unsigned long) tx4927_ccfgptr->ccfg &
872 (mips_machtype == MACH_TOSHIBA_RBTX4937 ?
873 TX4937_CCFG_PCIDIVMODE_MASK :
874 TX4927_CCFG_PCIDIVMODE_MASK));
837 875
838 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1, 876 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
839 "PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n", 877 "PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n",
@@ -844,20 +882,30 @@ void __init toshiba_rbtx4927_setup(void)
844 (unsigned long) tx4927_ccfgptr-> 882 (unsigned long) tx4927_ccfgptr->
845 ccfg & TX4927_CCFG_PCIXARB); 883 ccfg & TX4927_CCFG_PCIXARB);
846 884
847 TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1, 885 if (mips_machtype == MACH_TOSHIBA_RBTX4937)
848 "PCIDIVMODE is %lx\n", 886 switch ((unsigned long)tx4927_ccfgptr->
849 (unsigned long) tx4927_ccfgptr-> 887 ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
850 ccfg & TX4927_CCFG_PCIDIVMODE_MASK); 888 case TX4937_CCFG_PCIDIVMODE_8:
851 889 case TX4937_CCFG_PCIDIVMODE_4:
852 switch ((unsigned long) tx4927_ccfgptr-> 890 tx4927_cpu_clock = 266666666; /* 266MHz */
853 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) { 891 break;
854 case TX4927_CCFG_PCIDIVMODE_2_5: 892 case TX4937_CCFG_PCIDIVMODE_9:
855 case TX4927_CCFG_PCIDIVMODE_5: 893 case TX4937_CCFG_PCIDIVMODE_4_5:
856 tx4927_cpu_clock = 166000000; /* 166MHz */ 894 tx4927_cpu_clock = 300000000; /* 300MHz */
857 break; 895 break;
858 default: 896 default:
859 tx4927_cpu_clock = 200000000; /* 200MHz */ 897 tx4927_cpu_clock = 333333333; /* 333MHz */
860 } 898 }
899 else
900 switch ((unsigned long)tx4927_ccfgptr->
901 ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
902 case TX4927_CCFG_PCIDIVMODE_2_5:
903 case TX4927_CCFG_PCIDIVMODE_5:
904 tx4927_cpu_clock = 166666666; /* 166MHz */
905 break;
906 default:
907 tx4927_cpu_clock = 200000000; /* 200MHz */
908 }
861 909
862 /* CCFG */ 910 /* CCFG */
863 /* enable Timeout BusError */ 911 /* enable Timeout BusError */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 06:01:53 -0500