diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/csb272/Kconfig | 9 | ||||
| -rw-r--r-- | board/csb272/MAINTAINERS | 6 | ||||
| -rw-r--r-- | board/csb272/Makefile | 9 | ||||
| -rw-r--r-- | board/csb272/csb272.c | 171 | ||||
| -rw-r--r-- | board/csb272/init.S | 196 | ||||
| -rw-r--r-- | board/csb472/Kconfig | 9 | ||||
| -rw-r--r-- | board/csb472/MAINTAINERS | 6 | ||||
| -rw-r--r-- | board/csb472/Makefile | 9 | ||||
| -rw-r--r-- | board/csb472/csb472.c | 138 | ||||
| -rw-r--r-- | board/csb472/init.S | 192 |
10 files changed, 0 insertions, 745 deletions
diff --git a/board/csb272/Kconfig b/board/csb272/Kconfig deleted file mode 100644 index eed04f0431..0000000000 --- a/board/csb272/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -if TARGET_CSB272 - -config SYS_BOARD - default "csb272" - -config SYS_CONFIG_NAME - default "csb272" - -endif diff --git a/board/csb272/MAINTAINERS b/board/csb272/MAINTAINERS deleted file mode 100644 index 4bc95eaeb8..0000000000 --- a/board/csb272/MAINTAINERS +++ /dev/null @@ -1,6 +0,0 @@ -CSB272 BOARD -M: Tolunay Orkun <torkun@nextio.com> -S: Maintained -F: board/csb272/ -F: include/configs/csb272.h -F: configs/csb272_defconfig diff --git a/board/csb272/Makefile b/board/csb272/Makefile deleted file mode 100644 index 36ec9b6f4d..0000000000 --- a/board/csb272/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# SPDX-License-Identifier: GPL-2.0+ -# - -obj-y = csb272.o -obj-y += init.o diff --git a/board/csb272/csb272.c b/board/csb272/csb272.c deleted file mode 100644 index dc2c9503e6..0000000000 --- a/board/csb272/csb272.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * (C) Copyright 2004 - * Tolunay Orkun, Nextio Inc., torkun@nextio.com - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/processor.h> -#include <i2c.h> -#include <miiphy.h> -#include <asm/ppc4xx-emac.h> - -void sdram_init(void); - -/* - * Configuration data for AMIS FS6377-01 Programmable 3-PLL Clock Generator - * - * CLKA output => Epson LCD Controller - * CLKB output => Not Connected - * CLKC output => Ethernet - * CLKD output => UART external clock - * - * Note: these values are obtained from device after init by micromonitor -*/ -uchar pll_fs6377_regs[16] = { - 0x28, 0xef, 0x53, 0x03, 0x4b, 0x80, 0x32, 0x80, - 0x94, 0x32, 0x80, 0xd4, 0x56, 0xf6, 0xf6, 0xe0 }; - -/* - * pll_init: Initialize AMIS IC FS6377-01 PLL - * - * PLL supplies Epson LCD Clock, Ethernet Clock and UART external clock - * - */ -int pll_init(void) -{ - i2c_set_bus_num(0); - - return i2c_write(CONFIG_SYS_I2C_PLL_ADDR, 0, 1, - (uchar *) pll_fs6377_regs, sizeof(pll_fs6377_regs)); -} - -/* - * board_early_init_f: do early board initialization - * - */ -int board_early_init_f(void) -{ - /* initialize PLL so UART, LCD, Ethernet clocked at correctly */ - (void) get_clocks(); - pll_init(); - - /*-------------------------------------------------------------------------+ - | Interrupt controller setup for the Walnut board. - | Note: IRQ 0-15 405GP internally generated; active high; level sensitive - | IRQ 16 405GP internally generated; active low; level sensitive - | IRQ 17-24 RESERVED - | IRQ 25 (EXT IRQ 0) FPGA; active high; level sensitive - | IRQ 26 (EXT IRQ 1) SMI; active high; level sensitive - | IRQ 27 (EXT IRQ 2) Not Used - | IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive - | IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive - | IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive - | IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive - | Note for Walnut board: - | An interrupt taken for the FPGA (IRQ 25) indicates that either - | the Mouse, Keyboard, IRDA, or External Expansion caused the - | interrupt. The FPGA must be read to determine which device - | caused the interrupt. The default setting of the FPGA clears - | - +-------------------------------------------------------------------------*/ - - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - mtdcr (UIC0ER, 0x00000000); /* disable all ints */ - mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */ - mtdcr (UIC0PR, 0xFFFFFF83); /* set int polarities */ - mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */ - mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */ - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - - mtebc (EBC0_CFG, 0xa8400000); /* EBC always driven */ - - return 0; /* success */ -} - -/* - * checkboard: identify/verify the board we are running - * - * Remark: we just assume it is correct board here! - * - */ -int checkboard(void) -{ - printf("BOARD: Cogent CSB272\n"); - - return 0; /* success */ -} - -/* - * initram: Determine the size of mounted DRAM - * - * Size is determined by reading SDRAM configuration registers as - * configured by initialization code - * - */ -phys_size_t initdram (int board_type) -{ - ulong tot_size; - ulong bank_size; - ulong tmp; - - /* - * ToDo: Move the asm init routine sdram_init() to this C file, - * or even better use some common ppc4xx code available - * in arch/powerpc/cpu/ppc4xx - */ - sdram_init(); - - tot_size = 0; - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - return tot_size; -} - -/* - * last_stage_init: final configurations (such as PHY etc) - * - */ -int last_stage_init(void) -{ - /* initialize the PHY */ - miiphy_reset("ppc_4xx_eth0", CONFIG_PHY_ADDR); - - /* AUTO neg */ - miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, MII_BMCR, - BMCR_ANENABLE | BMCR_ANRESTART); - - /* LEDs */ - miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, MII_NWAYTEST, 0x0d08); - - - return 0; /* success */ -} diff --git a/board/csb272/init.S b/board/csb272/init.S deleted file mode 100644 index bf1d98680d..0000000000 --- a/board/csb272/init.S +++ /dev/null @@ -1,196 +0,0 @@ -/* - * SPDX-License-Identifier: GPL-2.0 IBM-pibs - */ -#include <config.h> -#include <asm/ppc4xx.h> - -#include <ppc_asm.tmpl> -#include <ppc_defs.h> - -#include <asm/cache.h> -#include <asm/mmu.h> - -#define LI32(reg,val) \ - addis reg,0,val@h;\ - ori reg,reg,val@l - -#define WDCR_EBC(reg,val) \ - addi r4,0,reg;\ - mtdcr EBC0_CFGADDR,r4;\ - addis r4,0,val@h;\ - ori r4,r4,val@l;\ - mtdcr EBC0_CFGDATA,r4 - -#define WDCR_SDRAM(reg,val) \ - addi r4,0,reg;\ - mtdcr SDRAM0_CFGADDR,r4;\ - addis r4,0,val@h;\ - ori r4,r4,val@l;\ - mtdcr SDRAM0_CFGDATA,r4 - -/****************************************************************************** - * Function: ext_bus_cntlr_init - * - * Description: Configures EBC Controller and a few basic chip selects. - * - * CS0 is setup to get the Boot Flash out of the addresss range - * so that we may setup a stack. CS7 is setup so that we can - * access and reset the hardware watchdog. - * - * IMPORTANT: For pass1 this code must run from - * cache since you can not reliably change a peripheral banks - * timing register (pbxap) while running code from that bank. - * For ex., since we are running from ROM on bank 0, we can NOT - * execute the code that modifies bank 0 timings from ROM, so - * we run it from cache. - * - * Notes: Does NOT use the stack. - *****************************************************************************/ - .section ".text" - .align 2 - .globl ext_bus_cntlr_init - .type ext_bus_cntlr_init, @function -ext_bus_cntlr_init: - mflr r0 - /******************************************************************** - * Prefetch entire ext_bus_cntrl_init function into the icache. - * This is necessary because we are going to change the same CS we - * are executing from. Otherwise a CPU lockup may occur. - *******************************************************************/ - bl ..getAddr -..getAddr: - mflr r3 /* get address of ..getAddr */ - - /* Calculate number of cache lines for this function */ - addi r4, 0, (((.Lfe0 - ..getAddr) / CONFIG_SYS_CACHELINE_SIZE) + 2) - mtctr r4 -..ebcloop: - icbt r0, r3 /* prefetch cache line for addr in r3*/ - addi r3, r3, CONFIG_SYS_CACHELINE_SIZE /* move to next cache line */ - bdnz ..ebcloop /* continue for $CTR cache lines */ - - /******************************************************************** - * Delay to ensure all accesses to ROM are complete before changing - * bank 0 timings. 200usec should be enough. - * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles. - *******************************************************************/ - addis r3, 0, 0x0 - ori r3, r3, 0xA000 /* wait 200us from reset */ - mtctr r3 -..spinlp: - bdnz ..spinlp /* spin loop */ - - /******************************************************************** - * SETUP CPC0_CR0 - *******************************************************************/ - LI32(r4, 0x007000c0) - mtdcr CPC0_CR0, r4 - - /******************************************************************** - * Setup CPC0_CR1: Change PCIINT signal to PerWE - *******************************************************************/ - mfdcr r4, CPC0_CR1 - ori r4, r4, 0x4000 - mtdcr CPC0_CR1, r4 - - /******************************************************************** - * Setup External Bus Controller (EBC). - *******************************************************************/ - WDCR_EBC(EBC0_CFG, 0xd84c0000) - /******************************************************************** - * Memory Bank 0 (Intel 28F128J3 Flash) initialization - *******************************************************************/ - /*WDCR_EBC(PB1AP, 0x02869200)*/ - WDCR_EBC(PB1AP, 0x07869200) - WDCR_EBC(PB0CR, 0xfe0bc000) - /******************************************************************** - * Memory Bank 1 (Holtek HT6542B PS/2) initialization - *******************************************************************/ - WDCR_EBC(PB1AP, 0x1f869200) - WDCR_EBC(PB1CR, 0xf0818000) - /******************************************************************** - * Memory Bank 2 (Epson S1D13506) initialization - *******************************************************************/ - WDCR_EBC(PB2AP, 0x05860300) - WDCR_EBC(PB2CR, 0xf045a000) - /******************************************************************** - * Memory Bank 3 (Philips SJA1000 CAN Controllers) initialization - *******************************************************************/ - WDCR_EBC(PB3AP, 0x0387d200) - WDCR_EBC(PB3CR, 0xf021c000) - /******************************************************************** - * Memory Bank 4-7 (Unused) initialization - *******************************************************************/ - WDCR_EBC(PB4AP, 0) - WDCR_EBC(PB4CR, 0) - WDCR_EBC(PB5AP, 0) - WDCR_EBC(PB5CR, 0) - WDCR_EBC(PB6AP, 0) - WDCR_EBC(PB6CR, 0) - WDCR_EBC(PB7AP, 0) - WDCR_EBC(PB7CR, 0) - - /* We are all done */ - mtlr r0 /* Restore link register */ - blr /* Return to calling function */ -.Lfe0: .size ext_bus_cntlr_init,.Lfe0-ext_bus_cntlr_init -/* end ext_bus_cntlr_init() */ - -/****************************************************************************** - * Function: sdram_init - * - * Description: Configures SDRAM memory banks. - * - * Notes: Does NOT use the stack. - *****************************************************************************/ - .section ".text" - .align 2 - .globl sdram_init - .type sdram_init, @function -sdram_init: - - /* - * Disable memory controller to allow - * values to be changed. - */ - WDCR_SDRAM(SDRAM0_CFG, 0x00000000) - - /* - * Configure Memory Banks - */ - WDCR_SDRAM(SDRAM0_B0CR, 0x00084001) - WDCR_SDRAM(SDRAM0_B1CR, 0x00000000) - WDCR_SDRAM(SDRAM0_B2CR, 0x00000000) - WDCR_SDRAM(SDRAM0_B3CR, 0x00000000) - - /* - * Set up SDTR1 (SDRAM Timing Register) - */ - WDCR_SDRAM(SDRAM0_TR, 0x00854009) - - /* - * Set RTR (Refresh Timing Register) - */ - WDCR_SDRAM(SDRAM0_RTR, 0x10000000) - /* WDCR_SDRAM(SDRAM0_RTR, 0x05f00000) */ - - /******************************************************************** - * Delay to ensure 200usec have elapsed since reset. Assume worst - * case that the core is running 200Mhz: - * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles - *******************************************************************/ - addis r3, 0, 0x0000 - ori r3, r3, 0xA000 /* Wait >200us from reset */ - mtctr r3 -..spinlp2: - bdnz ..spinlp2 /* spin loop */ - - /******************************************************************** - * Set memory controller options reg, MCOPT1. - *******************************************************************/ - WDCR_SDRAM(SDRAM0_CFG,0x80800000) - -..sdri_done: - blr /* Return to calling function */ -.Lfe1: .size sdram_init,.Lfe1-sdram_init -/* end sdram_init() */ diff --git a/board/csb472/Kconfig b/board/csb472/Kconfig deleted file mode 100644 index 53b1e7ad9a..0000000000 --- a/board/csb472/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -if TARGET_CSB472 - -config SYS_BOARD - default "csb472" - -config SYS_CONFIG_NAME - default "csb472" - -endif diff --git a/board/csb472/MAINTAINERS b/board/csb472/MAINTAINERS deleted file mode 100644 index 25041ed824..0000000000 --- a/board/csb472/MAINTAINERS +++ /dev/null @@ -1,6 +0,0 @@ -CSB472 BOARD -M: Tolunay Orkun <torkun@nextio.com> -S: Maintained -F: board/csb472/ -F: include/configs/csb472.h -F: configs/csb472_defconfig diff --git a/board/csb472/Makefile b/board/csb472/Makefile deleted file mode 100644 index 5f7e8b533e..0000000000 --- a/board/csb472/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# SPDX-License-Identifier: GPL-2.0+ -# - -obj-y = csb472.o -obj-y += init.o diff --git a/board/csb472/csb472.c b/board/csb472/csb472.c deleted file mode 100644 index b1de18ce51..0000000000 --- a/board/csb472/csb472.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * (C) Copyright 2004 - * Tolunay Orkun, Nextio Inc., torkun@nextio.com - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/processor.h> -#include <i2c.h> -#include <miiphy.h> -#include <asm/ppc4xx-emac.h> - -void sdram_init(void); - -/* - * board_early_init_f: do early board initialization - * - */ -int board_early_init_f(void) -{ - /*-------------------------------------------------------------------------+ - | Interrupt controller setup for the Walnut board. - | Note: IRQ 0-15 405GP internally generated; active high; level sensitive - | IRQ 16 405GP internally generated; active low; level sensitive - | IRQ 17-24 RESERVED - | IRQ 25 (EXT IRQ 0) FPGA; active high; level sensitive - | IRQ 26 (EXT IRQ 1) SMI; active high; level sensitive - | IRQ 27 (EXT IRQ 2) Not Used - | IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive - | IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive - | IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive - | IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive - | Note for Walnut board: - | An interrupt taken for the FPGA (IRQ 25) indicates that either - | the Mouse, Keyboard, IRDA, or External Expansion caused the - | interrupt. The FPGA must be read to determine which device - | caused the interrupt. The default setting of the FPGA clears - | - +-------------------------------------------------------------------------*/ - - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - mtdcr (UIC0ER, 0x00000000); /* disable all ints */ - mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */ - mtdcr (UIC0PR, 0xFFFFFF83); /* set int polarities */ - mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */ - mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */ - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - - mtebc (EBC0_CFG, 0xa8400000); /* EBC always driven */ - - return 0; /* success */ -} - -/* - * checkboard: identify/verify the board we are running - * - * Remark: we just assume it is correct board here! - * - */ -int checkboard(void) -{ - printf("BOARD: Cogent CSB472\n"); - - return 0; /* success */ -} - -/* - * initram: Determine the size of mounted DRAM - * - * Size is determined by reading SDRAM configuration registers as - * configured by initialization code - * - */ -phys_size_t initdram (int board_type) -{ - ulong tot_size; - ulong bank_size; - ulong tmp; - - /* - * ToDo: Move the asm init routine sdram_init() to this C file, - * or even better use some common ppc4xx code available - * in arch/powerpc/cpu/ppc4xx - */ - sdram_init(); - - tot_size = 0; - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR); - tmp = mfdcr (SDRAM0_CFGDATA); - if (tmp & 0x00000001) { - bank_size = 0x00400000 << ((tmp >> 17) & 0x7); - tot_size += bank_size; - } - - return tot_size; -} - -/* - * last_stage_init: final configurations (such as PHY etc) - * - */ -int last_stage_init(void) -{ - /* initialize the PHY */ - miiphy_reset("ppc_4xx_eth0", CONFIG_PHY_ADDR); - - /* AUTO neg */ - miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, MII_BMCR, - BMCR_ANENABLE | BMCR_ANRESTART); - - /* LEDs */ - miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, MII_NWAYTEST, 0x0d08); - - return 0; /* success */ -} diff --git a/board/csb472/init.S b/board/csb472/init.S deleted file mode 100644 index 7383a708b0..0000000000 --- a/board/csb472/init.S +++ /dev/null @@ -1,192 +0,0 @@ -/* - * SPDX-License-Identifier: GPL-2.0 IBM-pibs - */ -#include <config.h> -#include <asm/ppc4xx.h> - -#include <ppc_asm.tmpl> -#include <ppc_defs.h> - -#include <asm/cache.h> -#include <asm/mmu.h> - -#define LI32(reg,val) \ - addis reg,0,val@h;\ - ori reg,reg,val@l - -#define WDCR_EBC(reg,val) \ - addi r4,0,reg;\ - mtdcr EBC0_CFGADDR,r4;\ - addis r4,0,val@h;\ - ori r4,r4,val@l;\ - mtdcr EBC0_CFGDATA,r4 - -#define WDCR_SDRAM(reg,val) \ - addi r4,0,reg;\ - mtdcr SDRAM0_CFGADDR,r4;\ - addis r4,0,val@h;\ - ori r4,r4,val@l;\ - mtdcr SDRAM0_CFGDATA,r4 - -/****************************************************************************** - * Function: ext_bus_cntlr_init - * - * Description: Configures EBC Controller and a few basic chip selects. - * - * CS0 is setup to get the Boot Flash out of the addresss range - * so that we may setup a stack. CS7 is setup so that we can - * access and reset the hardware watchdog. - * - * IMPORTANT: For pass1 this code must run from - * cache since you can not reliably change a peripheral banks - * timing register (pbxap) while running code from that bank. - * For ex., since we are running from ROM on bank 0, we can NOT - * execute the code that modifies bank 0 timings from ROM, so - * we run it from cache. - * - * Notes: Does NOT use the stack. - *****************************************************************************/ - .section ".text" - .align 2 - .globl ext_bus_cntlr_init - .type ext_bus_cntlr_init, @function -ext_bus_cntlr_init: - mflr r0 - /******************************************************************** - * Prefetch entire ext_bus_cntrl_init function into the icache. - * This is necessary because we are going to change the same CS we - * are executing from. Otherwise a CPU lockup may occur. - *******************************************************************/ - bl ..getAddr -..getAddr: - mflr r3 /* get address of ..getAddr */ - - /* Calculate number of cache lines for this function */ - addi r4, 0, (((.Lfe0 - ..getAddr) / CONFIG_SYS_CACHELINE_SIZE) + 2) - mtctr r4 -..ebcloop: - icbt r0, r3 /* prefetch cache line for addr in r3*/ - addi r3, r3, CONFIG_SYS_CACHELINE_SIZE /* move to next cache line */ - bdnz ..ebcloop /* continue for $CTR cache lines */ - - /******************************************************************** - * Delay to ensure all accesses to ROM are complete before changing - * bank 0 timings. 200usec should be enough. - * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles. - *******************************************************************/ - addis r3, 0, 0x0 - ori r3, r3, 0xA000 /* wait 200us from reset */ - mtctr r3 -..spinlp: - bdnz ..spinlp /* spin loop */ - - /******************************************************************** - * SETUP CPC0_CR0 - *******************************************************************/ - LI32(r4, 0x00c01030) - mtdcr CPC0_CR0, r4 - - /******************************************************************** - * Setup CPC0_CR1: Change PCIINT signal to PerWE - *******************************************************************/ - mfdcr r4, CPC0_CR1 - ori r4, r4, 0x4000 - mtdcr CPC0_CR1, r4 - - /******************************************************************** - * Setup External Bus Controller (EBC). - *******************************************************************/ - WDCR_EBC(EBC0_CFG, 0xd84c0000) - /******************************************************************** - * Memory Bank 0 (Intel 28F640J3 Flash) initialization - *******************************************************************/ - /*WDCR_EBC(PB1AP, 0x03055200)*/ - /*WDCR_EBC(PB1AP, 0x04055200)*/ - WDCR_EBC(PB1AP, 0x08055200) - WDCR_EBC(PB0CR, 0xff87a000) - /******************************************************************** - * Memory Bank 3 (Xilinx XC95144 CPLD) initialization - *******************************************************************/ - /*WDCR_EBC(PB3AP, 0x07869200)*/ - WDCR_EBC(PB3AP, 0x04055200) - WDCR_EBC(PB3CR, 0xf081c000) - /******************************************************************** - * Memory Bank 1,2,4-7 (Unused) initialization - *******************************************************************/ - WDCR_EBC(PB1AP, 0) - WDCR_EBC(PB1CR, 0) - WDCR_EBC(PB2AP, 0) - WDCR_EBC(PB2CR, 0) - WDCR_EBC(PB4AP, 0) - WDCR_EBC(PB4CR, 0) - WDCR_EBC(PB5AP, 0) - WDCR_EBC(PB5CR, 0) - WDCR_EBC(PB6AP, 0) - WDCR_EBC(PB6CR, 0) - WDCR_EBC(PB7AP, 0) - WDCR_EBC(PB7CR, 0) - - /* We are all done */ - mtlr r0 /* Restore link register */ - blr /* Return to calling function */ -.Lfe0: .size ext_bus_cntlr_init,.Lfe0-ext_bus_cntlr_init -/* end ext_bus_cntlr_init() */ - -/****************************************************************************** - * Function: sdram_init - * - * Description: Configures SDRAM memory banks. - * - * Notes: Does NOT use the stack. - *****************************************************************************/ - .section ".text" - .align 2 - .globl sdram_init - .type sdram_init, @function -sdram_init: - - /* - * Disable memory controller to allow - * values to be changed. - */ - WDCR_SDRAM(SDRAM0_CFG, 0x00000000) - - /* - * Configure Memory Banks - */ - WDCR_SDRAM(SDRAM0_B0CR, 0x00062001) - WDCR_SDRAM(SDRAM0_B1CR, 0x00000000) - WDCR_SDRAM(SDRAM0_B2CR, 0x00000000) - WDCR_SDRAM(SDRAM0_B3CR, 0x00000000) - - /* - * Set up SDTR1 (SDRAM Timing Register) - */ - WDCR_SDRAM(SDRAM0_TR, 0x00854009) - - /* - * Set RTR (Refresh Timing Register) - */ - WDCR_SDRAM(SDRAM0_RTR, 0x10000000) - /* WDCR_SDRAM(SDRAM0_RTR, 0x05f00000) */ - - /******************************************************************** - * Delay to ensure 200usec have elapsed since reset. Assume worst - * case that the core is running 200Mhz: - * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles - *******************************************************************/ - addis r3, 0, 0x0000 - ori r3, r3, 0xA000 /* Wait >200us from reset */ - mtctr r3 -..spinlp2: - bdnz ..spinlp2 /* spin loop */ - - /******************************************************************** - * Set memory controller options reg, MCOPT1. - *******************************************************************/ - WDCR_SDRAM(SDRAM0_CFG,0x80800000) - -..sdri_done: - blr /* Return to calling function */ -.Lfe1: .size sdram_init,.Lfe1-sdram_init -/* end sdram_init() */ |