diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/mpc8641hpcn/Makefile | 2 | ||||
| -rw-r--r-- | board/mpc8641hpcn/config.mk | 2 | ||||
| -rw-r--r-- | board/mpc8641hpcn/init.S | 37 | ||||
| -rw-r--r-- | board/mpc8641hpcn/mpc8641hpcn.c | 214 | ||||
| -rw-r--r-- | board/mpc8641hpcn/oftree.dts | 158 | ||||
| -rw-r--r-- | board/mpc8641hpcn/pixis.c | 324 | ||||
| -rw-r--r-- | board/mpc8641hpcn/pixis.h | 33 | ||||
| -rw-r--r-- | board/mpc8641hpcn/u-boot.lds | 2 |
8 files changed, 669 insertions, 103 deletions
diff --git a/board/mpc8641hpcn/Makefile b/board/mpc8641hpcn/Makefile index d6037c1..2613730 100644 --- a/board/mpc8641hpcn/Makefile +++ b/board/mpc8641hpcn/Makefile @@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk LIB = lib$(BOARD).a -OBJS := $(BOARD).o oftree.o +OBJS := $(BOARD).o pixis.o oftree.o SOBJS := init.o $(LIB): $(OBJS) $(SOBJS) diff --git a/board/mpc8641hpcn/config.mk b/board/mpc8641hpcn/config.mk index 4bdceec..989a40b 100644 --- a/board/mpc8641hpcn/config.mk +++ b/board/mpc8641hpcn/config.mk @@ -1,5 +1,5 @@ # Copyright 2004 Freescale Semiconductor. -# Modified by Jeff Brown (jeffrey@freescale.com) +# Modified by Jeff Brown # # See file CREDITS for list of people who contributed to this # project. diff --git a/board/mpc8641hpcn/init.S b/board/mpc8641hpcn/init.S index 4d555a5..69954a8 100644 --- a/board/mpc8641hpcn/init.S +++ b/board/mpc8641hpcn/init.S @@ -1,6 +1,6 @@ /* * Copyright 2004 Freescale Semiconductor. - * Jeff Brown (jeffrey@freescale.com) + * Jeff Brown * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) * * See file CREDITS for list of people who contributed to this @@ -36,11 +36,10 @@ * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M * 0xa000_0000 0xbfff_ffff PCI2 MEM 512M * 0xc000_0000 0xdfff_ffff RapidIO 512M - * 0xe000_0000 0xe000_ffff CCSR 1M * 0xe200_0000 0xe2ff_ffff PCI1 IO 16M * 0xe300_0000 0xe3ff_ffff PCI2 IO 16M - * 0xf000_0000 0xf7ff_ffff SDRAM 128M - * 0xf800_0000 0xf80f_ffff BCSR 1M + * 0xf800_0000 0xf80f_ffff CCSRBAR 1M + * 0xf810_0000 0xf81f_ffff PIXIS 1M * 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M * * Notes: @@ -60,7 +59,6 @@ #define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M)) #define LAWBAR3 ((CFG_PCI2_MEM_BASE>>12) & 0xffffff) -/*#define LAWAR3 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_512M)) */ #define LAWAR3 (~LAWAR_EN & (LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_512M))) /* @@ -73,14 +71,20 @@ #define LAWAR5 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_16M)) #define LAWBAR6 ((CFG_PCI2_IO_BASE>>12) & 0xffffff) -/*#define LAWAR6 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_16M)) */ #define LAWAR6 (~LAWAR_EN &( LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_16M))) - #define LAWBAR7 ((0xfe000000 >>12) & 0xffffff) - #define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M)) +#define LAWBAR7 ((0xfe000000 >>12) & 0xffffff) +#define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M)) +#if !defined(CONFIG_SPD_EEPROM) +#define LAWBAR8 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff) +#define LAWAR8 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M)) +#else +#define LAWBAR8 0 +#define LAWAR8 ((LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_512M)) & ~LAWAR_EN) +#endif - .section .bootpg, "ax" + .section .bootpg, "ax" .globl law_entry law_entry: lis r7,CFG_CCSRBAR@h @@ -104,8 +108,8 @@ law_entry: stwu r6, 0x20(r4) lis r6,LAWAR2@h - ori r6,r6,LAWAR2@l - stwu r6, 0x20(r5) + ori r6,r6,LAWAR2@l + stwu r6, 0x20(r5) /* LAWBAR3, LAWAR3 */ lis r6,LAWBAR3@h @@ -121,7 +125,7 @@ law_entry: ori r6,r6,LAWBAR4@l stwu r6, 0x20(r4) - lis r6,LAWAR4@h + lis r6,LAWAR4@h ori r6,r6,LAWAR4@l stwu r6, 0x20(r5) /* LAWBAR5, LAWAR5 */ @@ -151,5 +155,14 @@ law_entry: ori r6,r6,LAWAR7@l stwu r6, 0x20(r5) + /* LAWBAR8, LAWAR8 */ + lis r6,LAWBAR8@h + ori r6,r6,LAWBAR8@l + stwu r6, 0x20(r4) + + lis r6,LAWAR8@h + ori r6,r6,LAWAR8@l + stwu r6, 0x20(r5) + blr diff --git a/board/mpc8641hpcn/mpc8641hpcn.c b/board/mpc8641hpcn/mpc8641hpcn.c index d02a7ef..c6b2a5b 100644 --- a/board/mpc8641hpcn/mpc8641hpcn.c +++ b/board/mpc8641hpcn/mpc8641hpcn.c @@ -1,6 +1,6 @@ /* * Copyright 2004 Freescale Semiconductor. - * Jeff Brown (jeffrey@freescale.com) + * Jeff Brown * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) * * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com> @@ -25,6 +25,7 @@ */ #include <common.h> +#include <command.h> #include <pci.h> #include <asm/processor.h> #include <asm/immap_86xx.h> @@ -35,20 +36,23 @@ extern void ft_cpu_setup(void *blob, bd_t *bd); #endif +#include "pixis.h" + #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) extern void ddr_enable_ecc(unsigned int dram_size); #endif -extern long int spd_sdram(void); +#if defined(CONFIG_SPD_EEPROM) +#include "spd_sdram.h" +#endif -void local_bus_init(void); void sdram_init(void); long int fixed_sdram(void); int board_early_init_f (void) { - return 0; + return 0; } int checkboard (void) @@ -57,41 +61,34 @@ int checkboard (void) #ifdef CONFIG_PCI - volatile immap_t *immap = (immap_t *) CFG_CCSRBAR; - volatile ccsr_gur_t *gur = &immap->im_gur; - volatile ccsr_pex_t *pex1 = &immap->im_pex1; - - uint devdisr = gur->devdisr; - uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16; - uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17; - uint pex1_agent = (host1_agent == 0) || (host1_agent == 1); - - - if ((io_sel==2 || io_sel==3 || io_sel==5 \ - || io_sel==6 || io_sel==7 || io_sel==0xF) - && !(devdisr & MPC86xx_DEVDISR_PCIEX1)){ - debug ("PCI-EXPRESS 1: %s \n", - pex1_agent ? "Agent" : "Host"); - debug("0x%08x=0x%08x ", &pex1->pme_msg_det,pex1->pme_msg_det); - if (pex1->pme_msg_det) { - pex1->pme_msg_det = 0xffffffff; - debug (" with errors. Clearing. Now 0x%08x", - pex1->pme_msg_det); - } - debug ("\n"); - } else { - printf ("PCI-EXPRESS 1: Disabled\n"); - } + volatile immap_t *immap = (immap_t *) CFG_CCSRBAR; + volatile ccsr_gur_t *gur = &immap->im_gur; + volatile ccsr_pex_t *pex1 = &immap->im_pex1; + + uint devdisr = gur->devdisr; + uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16; + uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17; + uint pex1_agent = (host1_agent == 0) || (host1_agent == 1); + + if ((io_sel == 2 || io_sel == 3 || io_sel == 5 + || io_sel == 6 || io_sel == 7 || io_sel == 0xF) + && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) { + debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host"); + debug("0x%08x=0x%08x ", &pex1->pme_msg_det, pex1->pme_msg_det); + if (pex1->pme_msg_det) { + pex1->pme_msg_det = 0xffffffff; + debug(" with errors. Clearing. Now 0x%08x", + pex1->pme_msg_det); + } + debug ("\n"); + } else { + puts("PCI-EXPRESS 1: Disabled\n"); + } #else - printf("PCI-EXPRESS1: Disabled\n"); + puts("PCI-EXPRESS1: Disabled\n"); #endif - /* - * Initialize local bus. - */ - local_bus_init(); - return 0; } @@ -100,7 +97,6 @@ long int initdram(int board_type) { long dram_size = 0; - extern long spd_sdram (void); #if defined(CONFIG_SPD_EEPROM) dram_size = spd_sdram (); @@ -112,7 +108,7 @@ initdram(int board_type) puts(" DDR: "); return dram_size; #endif - + #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) /* * Initialize and enable DDR ECC. @@ -125,34 +121,6 @@ initdram(int board_type) } -/* - * Initialize Local Bus - */ - -void -local_bus_init(void) -{ - volatile immap_t *immap = (immap_t *)CFG_IMMR; - volatile ccsr_lbc_t *lbc = &immap->im_lbc; - - uint clkdiv; - uint lbc_hz; - sys_info_t sysinfo; - - /* - * Errata LBC11. - * Fix Local Bus clock glitch when DLL is enabled. - * - * If localbus freq is < 66Mhz, DLL bypass mode must be used. - * If localbus freq is > 133Mhz, DLL can be safely enabled. - * Between 66 and 133, the DLL is enabled with an override workaround. - */ - - get_sys_info(&sysinfo); - clkdiv = lbc->lcrr & 0x0f; - lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; -} - #if defined(CFG_DRAM_TEST) int testdram(void) { @@ -160,7 +128,7 @@ int testdram(void) uint *pend = (uint *) CFG_MEMTEST_END; uint *p; - printf("SDRAM test phase 1:\n"); + puts("SDRAM test phase 1:\n"); for (p = pstart; p < pend; p++) *p = 0xaaaaaaaa; @@ -171,7 +139,7 @@ int testdram(void) } } - printf("SDRAM test phase 2:\n"); + puts("SDRAM test phase 2:\n"); for (p = pstart; p < pend; p++) *p = 0x55555555; @@ -182,7 +150,7 @@ int testdram(void) } } - printf("SDRAM test passed.\n"); + puts("SDRAM test passed.\n"); return 0; } #endif @@ -207,9 +175,9 @@ long int fixed_sdram(void) ddr->sdram_mode_1 = CFG_DDR_MODE_1; ddr->sdram_mode_2 = CFG_DDR_MODE_2; ddr->sdram_interval = CFG_DDR_INTERVAL; - ddr->sdram_data_init = CFG_DDR_DATA_INIT; + ddr->sdram_data_init = CFG_DDR_DATA_INIT; ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL; - ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL; + ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL; ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS; #if defined (CONFIG_DDR_ECC) @@ -217,7 +185,7 @@ long int fixed_sdram(void) ddr->err_sbe = 0x00ff0000; #endif asm("sync;isync"); - + udelay(500); #if defined (CONFIG_DDR_ECC) @@ -228,7 +196,7 @@ long int fixed_sdram(void) ddr->sdram_cfg_2 = CFG_DDR_CONTROL2; #endif asm("sync; isync"); - + udelay(500); #endif return CFG_SDRAM_SIZE * 1024 * 1024; @@ -281,15 +249,113 @@ ft_board_setup(void *blob, bd_t *bd) int len; ft_cpu_setup(blob, bd); - + p = ft_get_prop(blob, "/memory/reg", &len); if (p != NULL) { *p++ = cpu_to_be32(bd->bi_memstart); *p = cpu_to_be32(bd->bi_memsize); } - } #endif +void +mpc8641_reset_board(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + char cmd; + ulong val; + ulong corepll; + /* + * No args is a simple reset request. + */ + if (argv <= 0) { + out8(PIXIS_BASE + PIXIS_RST, 0); + /* not reached */ + } + + cmd = argv[1][1]; + switch (cmd) { + case 'f': /* reset with frequency changed */ + if (argc < 5) + goto my_usage; + read_from_px_regs(0); + + val = set_px_sysclk(simple_strtoul(argv[2], NULL, 10)); + + corepll = strfractoint(argv[3]); + val = val + set_px_corepll(corepll); + val = val + set_px_mpxpll(simple_strtoul(argv[4], NULL, 10)); + if (val == 3) { + puts("Setting registers VCFGEN0 and VCTL\n"); + read_from_px_regs(1); + puts("Resetting board with values from VSPEED0, VSPEED1, VCLKH, and VCLKL ....\n"); + set_px_go(); + } else + goto my_usage; + + while (1); /* Not reached */ + + case 'l': + if (argv[2][1] == 'f') { + read_from_px_regs(0); + read_from_px_regs_altbank(0); + /* reset with frequency changed */ + val = set_px_sysclk(simple_strtoul(argv[3], NULL, 10)); + + corepll = strfractoint(argv[4]); + val = val + set_px_corepll(corepll); + val = val + set_px_mpxpll(simple_strtoul(argv[5], NULL, 10)); + if (val == 3) { + puts("Setting registers VCFGEN0, VCFGEN1, VBOOT, and VCTL\n"); + set_altbank(); + read_from_px_regs(1); + read_from_px_regs_altbank(1); + puts("Enabling watchdog timer on the FPGA and resetting board with values from VSPEED0, VSPEED1, VCLKH, and VCLKL to boot from the other bank ....\n"); + set_px_go_with_watchdog(); + } else + goto my_usage; + + while(1); /* Not reached */ + + } else if(argv[2][1] == 'd'){ + /* + * Reset from alternate bank without changing + * frequencies but with watchdog timer enabled. + */ + read_from_px_regs(0); + read_from_px_regs_altbank(0); + puts("Setting registers VCFGEN1, VBOOT, and VCTL\n"); + set_altbank(); + read_from_px_regs_altbank(1); + puts("Enabling watchdog timer on the FPGA and resetting board to boot from the other bank....\n"); + set_px_go_with_watchdog(); + while(1); /* Not reached */ + + } else { + /* + * Reset from next bank without changing + * frequency and without watchdog timer enabled. + */ + read_from_px_regs(0); + read_from_px_regs_altbank(0); + if(argc > 2) + goto my_usage; + puts("Setting registers VCFGNE1, VBOOT, and VCTL\n"); + set_altbank(); + read_from_px_regs_altbank(1); + puts("Resetting board to boot from the other bank....\n"); + set_px_go(); + } + + default: + goto my_usage; + } + +my_usage: + puts("\nUsage: reset cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>\n"); + puts(" reset altbank [cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>]\n"); + puts(" reset altbank [wd]\n"); + puts("For example: reset cf 40 2.5 10\n"); + puts("See MPC8641HPCN Design Workbook for valid values of command line parameters.\n"); +} diff --git a/board/mpc8641hpcn/oftree.dts b/board/mpc8641hpcn/oftree.dts index ef28fc3..a11c321 100644 --- a/board/mpc8641hpcn/oftree.dts +++ b/board/mpc8641hpcn/oftree.dts @@ -18,7 +18,7 @@ linux,phandle = <100>; cpus { - #cpus = <1>; + #cpus = <2>; #address-cells = <1>; #size-cells = <0>; linux,phandle = <200>; @@ -30,19 +30,32 @@ i-cache-line-size = <20>; // 32 bytes d-cache-size = <8000>; // L1, 32K i-cache-size = <8000>; // L1, 32K - timebase-frequency = <0>; // 33 MHz, from uboot - bus-frequency = <0>; // 166 MHz - clock-frequency = <0>; // 825 MHz, from uboot + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // From uboot + clock-frequency = <0>; // From uboot 32-bit; linux,phandle = <201>; linux,boot-cpu; }; + PowerPC,8641@1 { + device_type = "cpu"; + reg = <1>; + d-cache-line-size = <20>; // 32 bytes + i-cache-line-size = <20>; // 32 bytes + d-cache-size = <8000>; // L1, 32K + i-cache-size = <8000>; // L1, 32K + timebase-frequency = <0>; // 33 MHz, from uboot + bus-frequency = <0>; // From uboot + clock-frequency = <0>; // From uboot + 32-bit; + linux,phandle = <202>; + }; }; memory { device_type = "memory"; linux,phandle = <300>; - reg = <00000000 10000000>; // 256M at 0x0 + reg = <00000000 40000000>; // 1G at 0x0 }; soc8641@f8000000 { @@ -63,6 +76,15 @@ dfsrr; }; + i2c@3100 { + device_type = "i2c"; + compatible = "fsl-i2c"; + reg = <3100 100>; + interrupts = <2b 0>; + interrupt-parent = <40000>; + dfsrr; + }; + mdio@24520 { #address-cells = <1>; #size-cells = <0>; @@ -73,28 +95,28 @@ ethernet-phy@0 { linux,phandle = <2452000>; interrupt-parent = <40000>; - interrupts = <a 0>; + interrupts = <3a 0>; reg = <0>; device_type = "ethernet-phy"; }; ethernet-phy@1 { linux,phandle = <2452001>; interrupt-parent = <40000>; - interrupts = <a 0>; + interrupts = <3a 0>; reg = <1>; device_type = "ethernet-phy"; }; ethernet-phy@2 { linux,phandle = <2452002>; interrupt-parent = <40000>; - interrupts = <a 0>; + interrupts = <3a 0>; reg = <2>; device_type = "ethernet-phy"; }; ethernet-phy@3 { linux,phandle = <2452003>; interrupt-parent = <40000>; - interrupts = <a 0>; + interrupts = <3a 0>; reg = <3>; device_type = "ethernet-phy"; }; @@ -154,8 +176,8 @@ serial@4500 { device_type = "serial"; compatible = "ns16550"; - reg = <4500 100>; // reg base, size - clock-frequency = <0>; // should we fill in in uboot? + reg = <4500 100>; + clock-frequency = <0>; interrupts = <2a 3>; interrupt-parent = <40000>; }; @@ -163,12 +185,120 @@ serial@4600 { device_type = "serial"; compatible = "ns16550"; - reg = <4600 100>; // reg base, size - clock-frequency = <0>; // should we fill in in uboot? - interrupts = <2a 3>; + reg = <4600 100>; + clock-frequency = <0>; + interrupts = <1c 3>; interrupt-parent = <40000>; }; + pci@8000 { + compatible = "86xx"; + device_type = "pci"; + linux,phandle = <8000>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <8000 1000>; + bus-range = <0 fe>; + ranges = <02000000 0 80000000 80000000 0 20000000 + 01000000 0 00000000 e2000000 0 00100000>; + clock-frequency = <1fca055>; + interrupt-parent = <40000>; + interrupts = <8 0>; + interrupt-map-mask = <f800 0 0 7>; + interrupt-map = < + /* IDSEL 0x11 */ + 8800 0 0 1 40000 3 0 + 8800 0 0 2 40000 4 0 + 8800 0 0 3 40000 5 0 + 8800 0 0 4 40000 6 0 + + /* IDSEL 0x12 */ + 9000 0 0 1 40000 4 0 + 9000 0 0 2 40000 5 0 + 9000 0 0 3 40000 6 0 + 9000 0 0 4 40000 3 0 + + /* IDSEL 0x13 */ + 9800 0 0 1 40000 5 0 + 9800 0 0 2 40000 6 0 + 9800 0 0 3 40000 3 0 + 9800 0 0 4 40000 4 0 + + /* IDSEL 0x14 */ + a000 0 0 1 40000 6 0 + a000 0 0 2 40000 3 0 + a000 0 0 3 40000 4 0 + a000 0 0 4 40000 5 0 + + /* IDSEL 0x15 */ + a800 0 0 1 40000 0 0 + a800 0 0 2 40000 0 0 + a800 0 0 3 40000 0 0 + a800 0 0 4 40000 0 0 + + /* IDSEL 0x16 */ + b000 0 0 1 40000 0 0 + b000 0 0 2 40000 0 0 + b000 0 0 3 40000 0 0 + b000 0 0 4 40000 0 0 + + /* IDSEL 0x17 */ + b800 0 0 1 40000 0 0 + b800 0 0 2 40000 0 0 + b800 0 0 3 40000 0 0 + b800 0 0 4 40000 0 0 + + /* IDSEL 0x18 */ + c000 0 0 1 40000 0 0 + c000 0 0 2 40000 0 0 + c000 0 0 3 40000 0 0 + c000 0 0 4 40000 0 0 + + /* IDSEL 0x19 */ + c800 0 0 1 40000 0 0 + c800 0 0 2 40000 0 0 + c800 0 0 3 40000 0 0 + c800 0 0 4 40000 0 0 + + /* IDSEL 0x1a */ + d000 0 0 1 40000 0 0 + d000 0 0 2 40000 0 0 + d000 0 0 3 40000 0 0 + d000 0 0 4 40000 0 0 + + + /* IDSEL 0x1b */ + d800 0 0 1 40000 0 0 + d800 0 0 2 40000 0 0 + d800 0 0 3 40000 0 0 + d800 0 0 4 40000 0 0 + + /* IDSEL 0x1c */ + e000 0 0 1 40000 0 0 + e000 0 0 2 40000 0 0 + e000 0 0 3 40000 0 0 + e000 0 0 4 40000 0 0 + + /* IDSEL 0x1d */ + e800 0 0 1 40000 0 0 + e800 0 0 2 40000 0 0 + e800 0 0 3 40000 0 0 + e800 0 0 4 40000 0 0 + + /* IDSEL 0x1e */ + f000 0 0 1 40000 0 0 + f000 0 0 2 40000 0 0 + f000 0 0 3 40000 0 0 + f000 0 0 4 40000 0 0 + + /* IDSEL 0x1f */ + f800 0 0 1 40000 6 0 + f800 0 0 2 40000 6 0 + f800 0 0 3 40000 6 0 + f800 0 0 4 40000 6 0 + >; + }; pic@40000 { linux,phandle = <40000>; clock-frequency = <0>; diff --git a/board/mpc8641hpcn/pixis.c b/board/mpc8641hpcn/pixis.c new file mode 100644 index 0000000..f226b3e --- /dev/null +++ b/board/mpc8641hpcn/pixis.c @@ -0,0 +1,324 @@ +/* + * Copyright 2006 Freescale Semiconductor + * Jeff Brown + * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <asm/cache.h> +#include <mpc86xx.h> + +#include "pixis.h" + + +/* + * Per table 27, page 58 of MPC8641HPCN spec. + */ +int set_px_sysclk(ulong sysclk) +{ + u8 sysclk_s, sysclk_r, sysclk_v, vclkh, vclkl, sysclk_aux; + + switch (sysclk) { + case 33: + sysclk_s = 0x04; + sysclk_r = 0x04; + sysclk_v = 0x07; + sysclk_aux = 0x00; + break; + case 40: + sysclk_s = 0x01; + sysclk_r = 0x1F; + sysclk_v = 0x20; + sysclk_aux = 0x01; + break; + case 50: + sysclk_s = 0x01; + sysclk_r = 0x1F; + sysclk_v = 0x2A; + sysclk_aux = 0x02; + break; + case 66: + sysclk_s = 0x01; + sysclk_r = 0x04; + sysclk_v = 0x04; + sysclk_aux = 0x03; + break; + case 83: + sysclk_s = 0x01; + sysclk_r = 0x1F; + sysclk_v = 0x4B; + sysclk_aux = 0x04; + break; + case 100: + sysclk_s = 0x01; + sysclk_r = 0x1F; + sysclk_v = 0x5C; + sysclk_aux = 0x05; + break; + case 134: + sysclk_s = 0x06; + sysclk_r = 0x1F; + sysclk_v = 0x3B; + sysclk_aux = 0x06; + break; + case 166: + sysclk_s = 0x06; + sysclk_r = 0x1F; + sysclk_v = 0x4B; + sysclk_aux = 0x07; + break; + default: + printf("Unsupported SYSCLK frequency.\n"); + return 0; + } + + vclkh = (sysclk_s << 5) | sysclk_r ; + vclkl = sysclk_v; + + out8(PIXIS_BASE + PIXIS_VCLKH, vclkh); + out8(PIXIS_BASE + PIXIS_VCLKL, vclkl); + + out8(PIXIS_BASE + PIXIS_AUX,sysclk_aux); + + return 1; +} + + +int set_px_mpxpll(ulong mpxpll) +{ + u8 tmp; + u8 val; + + switch (mpxpll) { + case 2: + case 4: + case 6: + case 8: + case 10: + case 12: + case 14: + case 16: + val = (u8)mpxpll; + break; + default: + printf("Unsupported MPXPLL ratio.\n"); + return 0; + } + + tmp = in8(PIXIS_BASE + PIXIS_VSPEED1); + tmp = (tmp & 0xF0) | (val & 0x0F); + out8(PIXIS_BASE + PIXIS_VSPEED1, tmp); + + return 1; +} + + +int set_px_corepll(ulong corepll) +{ + u8 tmp; + u8 val; + + switch ((int)corepll) { + case 20: + val = 0x08; + break; + case 25: + val = 0x0C; + break; + case 30: + val = 0x10; + break; + case 35: + val = 0x1C; + break; + case 40: + val = 0x14; + break; + case 45: + val = 0x0E; + break; + default: + printf("Unsupported COREPLL ratio.\n"); + return 0; + } + + tmp = in8(PIXIS_BASE + PIXIS_VSPEED0); + tmp = (tmp & 0xE0) | (val & 0x1F); + out8(PIXIS_BASE + PIXIS_VSPEED0, tmp); + + return 1; +} + + +void read_from_px_regs(int set) +{ + u8 mask = 0x1C; + u8 tmp = in8(PIXIS_BASE + PIXIS_VCFGEN0); + + if (set) + tmp = tmp | mask; + else + tmp = tmp & ~mask; + out8(PIXIS_BASE + PIXIS_VCFGEN0, tmp); +} + + +void read_from_px_regs_altbank(int set) +{ + u8 mask = 0x04; + u8 tmp = in8(PIXIS_BASE + PIXIS_VCFGEN1); + + if (set) + tmp = tmp | mask; + else + tmp = tmp & ~mask; + out8(PIXIS_BASE + PIXIS_VCFGEN1, tmp); +} + + +void set_altbank(void) +{ + u8 tmp; + + tmp = in8(PIXIS_BASE + PIXIS_VBOOT); + tmp ^= 0x40; + + out8(PIXIS_BASE + PIXIS_VBOOT, tmp); +} + + +void set_px_go(void) +{ + u8 tmp; + + tmp = in8(PIXIS_BASE + PIXIS_VCTL); + tmp = tmp & 0x1E; + out8(PIXIS_BASE + PIXIS_VCTL, tmp); + + tmp = in8(PIXIS_BASE + PIXIS_VCTL); + tmp = tmp | 0x01; + out8(PIXIS_BASE + PIXIS_VCTL, tmp); +} + + +void set_px_go_with_watchdog(void) +{ + u8 tmp; + + tmp = in8(PIXIS_BASE + PIXIS_VCTL); + tmp = tmp & 0x1E; + out8(PIXIS_BASE + PIXIS_VCTL, tmp); + + tmp = in8(PIXIS_BASE + PIXIS_VCTL); + tmp = tmp | 0x09; + out8(PIXIS_BASE + PIXIS_VCTL, tmp); +} + + +int disable_watchdog(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + u8 tmp; + + tmp = in8(PIXIS_BASE + PIXIS_VCTL); + tmp = tmp & 0x1E; + out8(PIXIS_BASE + PIXIS_VCTL, tmp); + + /* setting VCTL[WDEN] to 0 to disable watch dog */ + tmp = in8(PIXIS_BASE + PIXIS_VCTL); + tmp &= ~ 0x08; + out8(PIXIS_BASE + PIXIS_VCTL, tmp); + + return 0; +} + + +U_BOOT_CMD( + diswd, 1, 0, disable_watchdog, + "diswd - Disable watchdog timer \n", + NULL +); + + +/* + * This function takes the non-integral cpu:mpx pll ratio + * and converts it to an integer that can be used to assign + * FPGA register values. + * input: strptr i.e. argv[2] + */ + +ulong strfractoint(uchar *strptr) +{ + int i, j, retval; + int mulconst; + int intarr_len = 0, decarr_len = 0, no_dec = 0; + ulong intval = 0, decval = 0; + uchar intarr[3], decarr[3]; + + /* Assign the integer part to intarr[] + * If there is no decimal point i.e. + * if the ratio is an integral value + * simply create the intarr. + */ + i = 0; + while (strptr[i] != 46) { + if (strptr[i] == 0) { + no_dec = 1; + break; + } + intarr[i] = strptr[i]; + i++; + } + + /* Assign length of integer part to intarr_len. */ + intarr_len = i; + intarr[i] = '\0'; + + if (no_dec) { + /* Currently needed only for single digit corepll ratios */ + mulconst=10; + decval = 0; + } else { + j = 0; + i++; /* Skipping the decimal point */ + while ((strptr[i] > 47) && (strptr[i] < 58)) { + decarr[j] = strptr[i]; + i++; + j++; + } + + decarr_len = j; + decarr[j] = '\0'; + + mulconst = 1; + for (i = 0; i < decarr_len; i++) + mulconst *= 10; + decval = simple_strtoul(decarr, NULL, 10); + } + + intval = simple_strtoul(intarr, NULL, 10); + intval = intval * mulconst; + + retval = intval + decval; + + return retval; +} diff --git a/board/mpc8641hpcn/pixis.h b/board/mpc8641hpcn/pixis.h new file mode 100644 index 0000000..cd9a45d --- /dev/null +++ b/board/mpc8641hpcn/pixis.h @@ -0,0 +1,33 @@ +/* + * Copyright 2006 Freescale Semiconductor + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +extern int set_px_sysclk(ulong sysclk); +extern int set_px_mpxpll(ulong mpxpll); +extern int set_px_corepll(ulong corepll); +extern void read_from_px_regs(int set); +extern void read_from_px_regs_altbank(int set); +extern void set_altbank(void); +extern void set_px_go(void); +extern void set_px_go_with_watchdog(void); +extern int disable_watchdog(cmd_tbl_t *cmdtp, + int flag, int argc, char *argv[]); +extern ulong strfractoint(uchar *strptr); diff --git a/board/mpc8641hpcn/u-boot.lds b/board/mpc8641hpcn/u-boot.lds index c5c40e7..b34de8e 100644 --- a/board/mpc8641hpcn/u-boot.lds +++ b/board/mpc8641hpcn/u-boot.lds @@ -1,7 +1,7 @@ /* * (C) Copyright 2004, Freescale, Inc. * (C) Copyright 2002,2003, Motorola,Inc. - * Jeff Brown (jeffrey@freescale.com) + * Jeff Brown * * See file CREDITS for list of people who contributed to this * project. |