PPC32: Add support for the IBM PPC 405GPR-based "Sycamore" board.

arch/ppc/platforms/4xx/Kconfig

@@ -44,6 +44,9 @@ config REDWOOD_5
 config REDWOOD_6
 	bool "Redwood-6"
 
+config SYCAMORE
+	bool "Sycamore"
+
 config TIVO
 	bool "Tivo"
 
@@ -81,7 +84,7 @@ config IBM405_ERR51
 
 config IBM_OCP
 	bool
-	depends on ASH || BEECH || CEDAR || CPCI405 || EP405 || REDWOOD_4 || REDWOOD_5 || REDWOOD_6 || WALNUT
+	depends on ASH || BEECH || CEDAR || CPCI405 || EP405 || REDWOOD_4 || REDWOOD_5 || REDWOOD_6 || SYCAMORE || WALNUT
 	default y
 
 config NP405L
@@ -91,7 +94,7 @@ config NP405L
 
 config BIOS_FIXUP
 	bool
-	depends on CEDAR || EP405 || WALNUT
+	depends on CEDAR || EP405 || SYCAMORE || WALNUT
 	default y
 
 config 403GCX
@@ -104,6 +107,14 @@ config 405GP
 	depends on CPCI405 || EP405 || WALNUT
 	default y
 
+config 405GPR
+	bool
+	depends on SYCAMORE
+
+config 405LP
+	bool
+	depends on CEDAR
+
 config STB03xxx
 	bool
 	depends on REDWOOD_5 || REDWOOD_4 || REDWOOD_6
@@ -116,7 +127,7 @@ config EMBEDDEDBOOT
 
 config IBM_OPENBIOS
 	bool
-	depends on ASH || BEECH || CEDAR || REDWOOD_4 || REDWOOD_5 || REDWOOD_6 || WALNUT
+	depends on ASH || BEECH || CEDAR || REDWOOD_4 || REDWOOD_5 || REDWOOD_6 || SYCAMORE || WALNUT
 	default y
 
 config 405_DMA

arch/ppc/platforms/4xx/Makefile

@@ -12,6 +12,7 @@ obj-$(CONFIG_OAK)		+= oak.o
 obj-$(CONFIG_REDWOOD_4)		+= redwood.o
 obj-$(CONFIG_REDWOOD_5)		+= redwood5.o
 obj-$(CONFIG_REDWOOD_6)		+= redwood6.o 
+obj-$(CONFIG_SYCAMORE)		+= sycamore.o
 obj-$(CONFIG_WALNUT)		+= walnut.o
 
 obj-$(CONFIG_NP405L)		+= ibmnp405l.o

arch/ppc/platforms/4xx/sycamore.c

+/*
+ *
+ *    Copyright 2000-2002 MontaVista Software Inc.
+ *      Author: Armin Kuster <akuster@mvista.com>
+ *      MontaVista Software, Inc.  <source@mvista.com>
+ *
+ *    Module name: sycamore.c
+ *
+ *    Description:
+ *      Architecture- / platform-specific boot-time initialization code for
+ *      IBM PowerPC 4xx based boards. 
+ *
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/threads.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/blk.h>
+#include <linux/pci.h>
+#include <linux/rtc.h>
+
+#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
+#include <asm/system.h>
+#include <asm/pci-bridge.h>
+#include <asm/processor.h>
+#include <asm/machdep.h>
+#include <asm/page.h>
+#include <asm/time.h>
+#include <asm/io.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 *sycamore_rtc_base;
+
+/*
+ * Define all of the IRQ senses and polarities.  
+ */
+
+static u_char Sycamore_IRQ_initsenses[] __initdata = {
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 0: Uart 0*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 1: Uart 1*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 2: IIC */
+	(IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),	/* 3: External Master */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 4: PCI ext cmd write*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 5: DMA Chan 0 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 6: DMA Chan 1 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 7: DMA Chan 2 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 8: DMA Chan 3 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 9: Ethernet wakeup (WOL)*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 10: Mal (SEER) */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 11: Mal TXEOB */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 12: Mal RXEOB */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 13: Mal TXDE*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 14: Mal RXDE*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 15: Ethernet */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 16: Ext PCI SERR */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 17: ECC */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* 18: PCI PM*/
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 19: Ext Int 7 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 20: Ext Int 8 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 21: Ext Int 9 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 22: Ext Int 10 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 23: Ext Int 11 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 24: Ext Int 12 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 25: Ext Int 0 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 26: Ext Int 1 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 27: Ext Int 2 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 28: Ext Int 3 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 29: Ext Int 4 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 30: Ext Int 5 */
+	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* 31: Ext Int 6 */
+};
+
+
+/* Some IRQs unique to Sycamore.
+ * 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
+sycamore_setup_arch(void)
+{
+#define SYCAMORE_PS2_BASE	0xF0100000
+#define SYCAMORE_FPGA_BASE	0xF0300000
+
+	void *fpga_brdc;
+	unsigned char fpga_brdc_data;
+	void *fpga_enable;
+	void *fpga_polarity;
+	void *fpga_status;
+	void *fpga_trigger;
+
+	ppc4xx_setup_arch();
+
+	kb_data = ioremap(SYCAMORE_PS2_BASE, 8);
+	if (!kb_data) {
+		printk(KERN_CRIT
+		       "sycamore_setup_arch() kb_data ioremap failed\n");
+		return;
+	}
+
+	kb_cs = kb_data + 1;
+
+	fpga_status = ioremap(SYCAMORE_FPGA_BASE, 8);
+	if (!fpga_status) {
+		printk(KERN_CRIT
+		       "sycamore_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 sycamore */
+	sycamore_rtc_base = (void *) SYCAMORE_RTC_VADDR;
+	TODC_INIT(TODC_TYPE_DS1743, sycamore_rtc_base, sycamore_rtc_base,
+		  sycamore_rtc_base, 8);
+	ibm4xxPIC_InitSenses = Sycamore_IRQ_initsenses;
+	ibm4xxPIC_NumInitSenses = sizeof(Sycamore_IRQ_initsenses);
+
+	/* Identify the system */
+	printk(KERN_INFO "IBM Sycamore (IBM405GPr) Platform\n");
+	printk(KERN_INFO
+	       "Port by 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 arround */
+
+#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
+sycamore_map_io(void)
+{
+	ppc4xx_map_io();
+	io_block_mapping(SYCAMORE_RTC_VADDR,
+			 SYCAMORE_RTC_PADDR, SYCAMORE_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 = sycamore_setup_arch;
+	ppc_md.setup_io_mappings = sycamore_map_io;
+
+	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;
+}

arch/ppc/platforms/4xx/sycamore.h

+/*
+ *
+ *    Copyright 2000 MontaVista Software Inc.
+ * 	Author: Armin Kuster <akuster@mvista.com>
+ * 		MontaVista Software, Inc.
+ *
+ *    Module name: sycamore.h
+ *
+ *    Description:
+ *      Macros, definitions, and data structures specific to the IBM PowerPC
+ *      based boards.
+ *
+ *      This includes:
+ *
+ *         405GP "Sycamore" evaluation board
+ *
+ */
+
+#ifdef __KERNEL__
+#ifndef __ASM_SYCAMORE_H__
+#define __ASM_SYCAMORE_H__
+
+#include <platforms/4xx/ibm405gpr.h>
+
+#ifndef __ASSEMBLY__
+/*
+ * Data structure defining board information maintained by the boot
+ * ROM on IBM's "Sycamore" evaluation board. An effort has been made to
+ * keep the field names consistent with the 8xx 'bd_t' board info
+ * structures.
+ */
+
+typedef struct board_info {
+	unsigned char	 bi_s_version[4];	/* Version of this structure */
+	unsigned char	 bi_r_version[30];	/* Version of the IBM ROM */
+	unsigned int	 bi_memsize;		/* DRAM installed, in bytes */
+	unsigned char	 bi_enetaddr[6];	/* Local Ethernet MAC address */
+	unsigned char	 bi_pci_enetaddr[6];	/* PCI Ethernet MAC address */
+	unsigned int	 bi_intfreq;		/* Processor speed, in Hz */
+	unsigned int	 bi_busfreq;		/* PLB Bus speed, in Hz */
+	unsigned int	 bi_pci_busfreq;	/* PCI Bus speed, in Hz */
+} bd_t;
+
+/* Some 4xx parts use a different timebase frequency from the internal clock.
+*/
+#define bi_tbfreq bi_intfreq
+
+
+/* Memory map for the IBM "Sycamore" 405GP evaluation board.
+ * Generic 4xx plus RTC.
+ */
+
+extern void *sycamore_rtc_base;
+#define SYCAMORE_RTC_PADDR	((uint)0xf0000000)
+#define SYCAMORE_RTC_VADDR	SYCAMORE_RTC_PADDR
+#define SYCAMORE_RTC_SIZE		((uint)8*1024)
+
+#ifdef CONFIG_PPC405GP_INTERNAL_CLOCK
+#define BASE_BAUD		201600
+#else
+#define BASE_BAUD		691200
+#endif
+
+#define SYCAMORE_PS2_BASE		0xF0100000
+#define SYCAMORE_FPGA_BASE	0xF0300000
+
+#define PPC4xx_MACHINE_NAME	"IBM Sycamore"
+
+#endif /* !__ASSEMBLY__ */
+#endif /* __ASM_SYCAMORE_H__ */
+#endif /* __KERNEL__ */