diff options
Diffstat (limited to 'arch/ppc/platforms/4xx/walnut.c')
| -rw-r--r-- | arch/ppc/platforms/4xx/walnut.c | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/arch/ppc/platforms/4xx/walnut.c b/arch/ppc/platforms/4xx/walnut.c deleted file mode 100644 index 2f9772340854..000000000000 --- a/arch/ppc/platforms/4xx/walnut.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * Architecture- / platform-specific boot-time initialization code for - * IBM PowerPC 4xx based boards. Adapted from original - * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek - * <dan@net4x.com>. - * - * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> - * - * 2002 (c) MontaVista, Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ -#include <linux/init.h> -#include <linux/smp.h> -#include <linux/threads.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/pci.h> -#include <linux/rtc.h> - -#include <asm/system.h> -#include <asm/pci-bridge.h> -#include <asm/machdep.h> -#include <asm/page.h> -#include <asm/time.h> -#include <asm/io.h> -#include <asm/ocp.h> -#include <asm/ibm_ocp_pci.h> -#include <asm/todc.h> - -#undef DEBUG - -#ifdef DEBUG -#define DBG(x...) printk(x) -#else -#define DBG(x...) -#endif - -void *kb_cs; -void *kb_data; -void *walnut_rtc_base; - -/* Some IRQs unique to Walnut. - * Used by the generic 405 PCI setup functions in ppc4xx_pci.c - */ -int __init -ppc405_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - {28, 28, 28, 28}, /* IDSEL 1 - PCI slot 1 */ - {29, 29, 29, 29}, /* IDSEL 2 - PCI slot 2 */ - {30, 30, 30, 30}, /* IDSEL 3 - PCI slot 3 */ - {31, 31, 31, 31}, /* IDSEL 4 - PCI slot 4 */ - }; - - const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -}; - -void __init -walnut_setup_arch(void) -{ - - void *fpga_brdc; - unsigned char fpga_brdc_data; - void *fpga_enable; - void *fpga_polarity; - void *fpga_status; - void *fpga_trigger; - - ppc4xx_setup_arch(); - - ibm_ocp_set_emac(0, 0); - - kb_data = ioremap(WALNUT_PS2_BASE, 8); - if (!kb_data) { - printk(KERN_CRIT - "walnut_setup_arch() kb_data ioremap failed\n"); - return; - } - - kb_cs = kb_data + 1; - - fpga_status = ioremap(PPC40x_FPGA_BASE, 8); - if (!fpga_status) { - printk(KERN_CRIT - "walnut_setup_arch() fpga_status ioremap failed\n"); - return; - } - - fpga_enable = fpga_status + 1; - fpga_polarity = fpga_status + 2; - fpga_trigger = fpga_status + 3; - fpga_brdc = fpga_status + 4; - - /* split the keyboard and mouse interrupts */ - fpga_brdc_data = readb(fpga_brdc); - fpga_brdc_data |= 0x80; - writeb(fpga_brdc_data, fpga_brdc); - - writeb(0x3, fpga_enable); - - writeb(0x3, fpga_polarity); - - writeb(0x3, fpga_trigger); - - /* RTC step for the walnut */ - walnut_rtc_base = (void *) WALNUT_RTC_VADDR; - TODC_INIT(TODC_TYPE_DS1743, walnut_rtc_base, walnut_rtc_base, - walnut_rtc_base, 8); - /* Identify the system */ - printk("IBM Walnut port (C) 2000-2002 MontaVista Software, Inc. (source@mvista.com)\n"); -} - -void __init -bios_fixup(struct pci_controller *hose, struct pcil0_regs *pcip) -{ -#ifdef CONFIG_PCI - unsigned int bar_response, bar; - /* - * Expected PCI mapping: - * - * PLB addr PCI memory addr - * --------------------- --------------------- - * 0000'0000 - 7fff'ffff <--- 0000'0000 - 7fff'ffff - * 8000'0000 - Bfff'ffff ---> 8000'0000 - Bfff'ffff - * - * PLB addr PCI io addr - * --------------------- --------------------- - * e800'0000 - e800'ffff ---> 0000'0000 - 0001'0000 - * - * The following code is simplified by assuming that the bootrom - * has been well behaved in following this mapping. - */ - -#ifdef DEBUG - int i; - - printk("ioremap PCLIO_BASE = 0x%x\n", pcip); - printk("PCI bridge regs before fixup \n"); - for (i = 0; i <= 3; i++) { - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].ma))); - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].la))); - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].pcila))); - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].pciha))); - } - printk(" ptm1ms\t0x%x\n", in_le32(&(pcip->ptm1ms))); - printk(" ptm1la\t0x%x\n", in_le32(&(pcip->ptm1la))); - printk(" ptm2ms\t0x%x\n", in_le32(&(pcip->ptm2ms))); - printk(" ptm2la\t0x%x\n", in_le32(&(pcip->ptm2la))); - -#endif - - /* added for IBM boot rom version 1.15 bios bar changes -AK */ - - /* Disable region first */ - out_le32((void *) &(pcip->pmm[0].ma), 0x00000000); - /* PLB starting addr, PCI: 0x80000000 */ - out_le32((void *) &(pcip->pmm[0].la), 0x80000000); - /* PCI start addr, 0x80000000 */ - out_le32((void *) &(pcip->pmm[0].pcila), PPC405_PCI_MEM_BASE); - /* 512MB range of PLB to PCI */ - out_le32((void *) &(pcip->pmm[0].pciha), 0x00000000); - /* Enable no pre-fetch, enable region */ - out_le32((void *) &(pcip->pmm[0].ma), ((0xffffffff - - (PPC405_PCI_UPPER_MEM - - PPC405_PCI_MEM_BASE)) | 0x01)); - - /* Disable region one */ - out_le32((void *) &(pcip->pmm[1].ma), 0x00000000); - out_le32((void *) &(pcip->pmm[1].la), 0x00000000); - out_le32((void *) &(pcip->pmm[1].pcila), 0x00000000); - out_le32((void *) &(pcip->pmm[1].pciha), 0x00000000); - out_le32((void *) &(pcip->pmm[1].ma), 0x00000000); - out_le32((void *) &(pcip->ptm1ms), 0x00000000); - - /* Disable region two */ - out_le32((void *) &(pcip->pmm[2].ma), 0x00000000); - out_le32((void *) &(pcip->pmm[2].la), 0x00000000); - out_le32((void *) &(pcip->pmm[2].pcila), 0x00000000); - out_le32((void *) &(pcip->pmm[2].pciha), 0x00000000); - out_le32((void *) &(pcip->pmm[2].ma), 0x00000000); - out_le32((void *) &(pcip->ptm2ms), 0x00000000); - - /* Zero config bars */ - for (bar = PCI_BASE_ADDRESS_1; bar <= PCI_BASE_ADDRESS_2; bar += 4) { - early_write_config_dword(hose, hose->first_busno, - PCI_FUNC(hose->first_busno), bar, - 0x00000000); - early_read_config_dword(hose, hose->first_busno, - PCI_FUNC(hose->first_busno), bar, - &bar_response); - DBG("BUS %d, device %d, Function %d bar 0x%8.8x is 0x%8.8x\n", - hose->first_busno, PCI_SLOT(hose->first_busno), - PCI_FUNC(hose->first_busno), bar, bar_response); - } - /* end work around */ - -#ifdef DEBUG - printk("PCI bridge regs after fixup \n"); - for (i = 0; i <= 3; i++) { - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].ma))); - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].la))); - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].pcila))); - printk(" pmm%dma\t0x%x\n", i, in_le32(&(pcip->pmm[i].pciha))); - } - printk(" ptm1ms\t0x%x\n", in_le32(&(pcip->ptm1ms))); - printk(" ptm1la\t0x%x\n", in_le32(&(pcip->ptm1la))); - printk(" ptm2ms\t0x%x\n", in_le32(&(pcip->ptm2ms))); - printk(" ptm2la\t0x%x\n", in_le32(&(pcip->ptm2la))); - -#endif -#endif -} - -void __init -walnut_map_io(void) -{ - ppc4xx_map_io(); - io_block_mapping(WALNUT_RTC_VADDR, - WALNUT_RTC_PADDR, WALNUT_RTC_SIZE, _PAGE_IO); -} - -void __init -platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - ppc4xx_init(r3, r4, r5, r6, r7); - - ppc_md.setup_arch = walnut_setup_arch; - ppc_md.setup_io_mappings = walnut_map_io; - -#ifdef CONFIG_GEN_RTC - ppc_md.time_init = todc_time_init; - ppc_md.set_rtc_time = todc_set_rtc_time; - ppc_md.get_rtc_time = todc_get_rtc_time; - ppc_md.nvram_read_val = todc_direct_read_val; - ppc_md.nvram_write_val = todc_direct_write_val; -#endif -} |