Initial revision

1 files changed, 437 insertions, 0 deletions

diff --git a/board/evb64260/evb64260.c b/board/evb64260/evb64260.c
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+++ b/board/evb64260/evb64260.c
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+/*
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
+ *
+ * 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
+ */
+
+/*
+ * evb64260.c - main board support/init for the Galileo Eval board.
+ */
+
+#include <common.h>
+#include <74xx_7xx.h>
+#include <galileo/memory.h>
+#include <galileo/pci.h>
+#include <galileo/gt64260R.h>
+#include <net.h>
+
+#include <asm/io.h>
+#include "eth.h"
+#include "mpsc.h"
+#include "i2c.h"
+#include "64260.h"
+#ifdef CONFIG_ZUMA_V2
+extern void zuma_mbox_init(void);
+#endif
+
+#undef	DEBUG
+#define	MAP_PCI
+
+#ifdef DEBUG
+#define DP(x) x
+#else
+#define DP(x)
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+/* this is the current GT register space location */
+/* it starts at CFG_DFL_GT_REGS but moves later to CFG_GT_REGS */
+
+/* Unfortunately, we cant change it while we are in flash, so we initialize it
+ * to the "final" value. This means that any debug_led calls before
+ * board_pre_init wont work right (like in cpu_init_f).
+ * See also my_remap_gt_regs below. (NTL)
+ */
+
+unsigned int INTERNAL_REG_BASE_ADDR = CFG_GT_REGS;
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * This is a version of the GT register space remapping function that
+ * doesn't touch globals (meaning, it's ok to run from flash.)
+ *
+ * Unfortunately, this has the side effect that a writable
+ * INTERNAL_REG_BASE_ADDR is impossible. Oh well.
+ */
+
+void
+my_remap_gt_regs(u32 cur_loc, u32 new_loc)
+{
+	u32 temp;
+
+	/* check and see if it's already moved */
+	temp = in_le32((u32 *)(new_loc + INTERNAL_SPACE_DECODE));
+	if ((temp & 0xffff) == new_loc >> 20)
+		return;
+
+	temp = (in_le32((u32 *)(cur_loc + INTERNAL_SPACE_DECODE)) &
+		0xffff0000) | (new_loc >> 20);
+
+	out_le32((u32 *)(cur_loc + INTERNAL_SPACE_DECODE), temp);
+
+	while (GTREGREAD(INTERNAL_SPACE_DECODE) != temp);
+}
+
+static void
+gt_pci_config(void)
+{
+	/* move PCI stuff out of the way - NTL */
+	/* map PCI Host 0 */
+	pciMapSpace(PCI_HOST0, PCI_REGION0, CFG_PCI0_0_MEM_SPACE,
+		CFG_PCI0_0_MEM_SPACE, CFG_PCI0_MEM_SIZE);
+
+	pciMapSpace(PCI_HOST0, PCI_REGION1, 0, 0, 0);
+	pciMapSpace(PCI_HOST0, PCI_REGION2, 0, 0, 0);
+	pciMapSpace(PCI_HOST0, PCI_REGION3, 0, 0, 0);
+
+	pciMapSpace(PCI_HOST0, PCI_IO, CFG_PCI0_IO_SPACE_PCI,
+		CFG_PCI0_IO_SPACE, CFG_PCI0_IO_SIZE);
+
+	/* map PCI Host 1 */
+	pciMapSpace(PCI_HOST1, PCI_REGION0, CFG_PCI1_0_MEM_SPACE,
+		CFG_PCI1_0_MEM_SPACE, CFG_PCI1_MEM_SIZE);
+
+	pciMapSpace(PCI_HOST1, PCI_REGION1, 0, 0, 0);
+	pciMapSpace(PCI_HOST1, PCI_REGION2, 0, 0, 0);
+	pciMapSpace(PCI_HOST1, PCI_REGION3, 0, 0, 0);
+
+	pciMapSpace(PCI_HOST1, PCI_IO, CFG_PCI1_IO_SPACE_PCI,
+		CFG_PCI1_IO_SPACE, CFG_PCI1_IO_SIZE);
+
+	/* PCI interface settings */
+	GT_REG_WRITE(PCI_0TIMEOUT_RETRY, 0xffff);
+	GT_REG_WRITE(PCI_1TIMEOUT_RETRY, 0xffff);
+	GT_REG_WRITE(PCI_0BASE_ADDRESS_REGISTERS_ENABLE, 0xfffff80e);
+	GT_REG_WRITE(PCI_1BASE_ADDRESS_REGISTERS_ENABLE, 0xfffff80e);
+
+
+}
+
+/* Setup CPU interface paramaters */
+static void
+gt_cpu_config(void)
+{
+	cpu_t cpu = get_cpu_type();
+	ulong tmp;
+
+	/* cpu configuration register */
+	tmp = GTREGREAD(CPU_CONFIGURATION);
+
+	/* set the AACK delay bit
+	 * see Res#14 */
+	tmp |= CPU_CONF_AACK_DELAY;
+	tmp &= ~CPU_CONF_AACK_DELAY_2; /* New RGF */
+
+	/* Galileo claims this is necessary for all busses >= 100 MHz */
+	tmp |= CPU_CONF_FAST_CLK;
+
+	if (cpu == CPU_750CX) {
+		tmp &= ~CPU_CONF_DP_VALID; /* Safer, needed for CXe. RGF */
+		tmp &= ~CPU_CONF_AP_VALID;
+	} else {
+		tmp |= CPU_CONF_DP_VALID;
+		tmp |= CPU_CONF_AP_VALID;
+	}
+
+	/* this only works with the MPX bus */
+	tmp &= ~CPU_CONF_RD_OOO; /* Safer RGF */
+	tmp |= CPU_CONF_PIPELINE;
+	tmp |= CPU_CONF_TA_DELAY;
+
+	GT_REG_WRITE(CPU_CONFIGURATION, tmp);
+
+	/* CPU master control register */
+	tmp = GTREGREAD(CPU_MASTER_CONTROL);
+
+	tmp |= CPU_MAST_CTL_ARB_EN;
+
+	if ((cpu == CPU_7400) ||
+	    (cpu == CPU_7410) ||
+	    (cpu == CPU_7450)) {
+
+		tmp |= CPU_MAST_CTL_CLEAN_BLK;
+		tmp |= CPU_MAST_CTL_FLUSH_BLK;
+
+	} else {
+		/* cleanblock must be cleared for CPUs
+		 * that do not support this command
+		 * see Res#1 */
+		tmp &= ~CPU_MAST_CTL_CLEAN_BLK;
+		tmp &= ~CPU_MAST_CTL_FLUSH_BLK;
+	}
+	GT_REG_WRITE(CPU_MASTER_CONTROL, tmp);
+}
+
+/*
+ * board_pre_init.
+ *
+ * set up gal. device mappings, etc.
+ */
+int board_pre_init (void)
+{
+	uchar sram_boot = 0;
+
+	/*
+	 * set up the GT the way the kernel wants it
+	 * the call to move the GT register space will obviously
+	 * fail if it has already been done, but we're going to assume
+	 * that if it's not at the power-on location, it's where we put
+	 * it last time. (huber)
+	 */
+	my_remap_gt_regs(CFG_DFL_GT_REGS, CFG_GT_REGS);
+
+	gt_pci_config();
+
+	/* mask all external interrupt sources */
+	GT_REG_WRITE(CPU_INTERRUPT_MASK_REGISTER_LOW, 0);
+	GT_REG_WRITE(CPU_INTERRUPT_MASK_REGISTER_HIGH, 0);
+	GT_REG_WRITE(PCI_0INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0);
+	GT_REG_WRITE(PCI_0INTERRUPT_CAUSE_MASK_REGISTER_HIGH, 0);
+	GT_REG_WRITE(PCI_1INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0);
+	GT_REG_WRITE(PCI_1INTERRUPT_CAUSE_MASK_REGISTER_HIGH, 0);
+	GT_REG_WRITE(CPU_INT_0_MASK, 0);
+	GT_REG_WRITE(CPU_INT_1_MASK, 0);
+	GT_REG_WRITE(CPU_INT_2_MASK, 0);
+	GT_REG_WRITE(CPU_INT_3_MASK, 0);
+
+	/* now, onto the configuration */
+	GT_REG_WRITE(SDRAM_CONFIGURATION, CFG_SDRAM_CONFIG);
+
+	/* ----- DEVICE BUS SETTINGS ------ */
+
+        /*
+	 * EVB
+         * 0 - SRAM
+         * 1 - RTC
+         * 2 - UART
+         * 3 - Flash
+         * boot - BootCS
+	 *
+	 * Zuma
+	 * 0 - Flash
+	 * boot - BootCS
+         */
+
+	/*
+	 * the dual 7450 module requires burst access to the boot
+	 * device, so the serial rom copies the boot device to the
+	 * on-board sram on the eval board, and updates the correct
+	 * registers to boot from the sram. (device0)
+	 */
+#ifdef CONFIG_ZUMA_V2
+	/* Zuma has no SRAM */
+	sram_boot = 0;
+#else
+	if (memoryGetDeviceBaseAddress(DEVICE0) && 0xfff00000 == CFG_MONITOR_BASE)
+		sram_boot = 1;
+#endif
+
+	if (!sram_boot)
+		memoryMapDeviceSpace(DEVICE0, CFG_DEV0_SPACE, CFG_DEV0_SIZE);
+
+	memoryMapDeviceSpace(DEVICE1, CFG_DEV1_SPACE, CFG_DEV1_SIZE);
+	memoryMapDeviceSpace(DEVICE2, CFG_DEV2_SPACE, CFG_DEV2_SIZE);
+	memoryMapDeviceSpace(DEVICE3, CFG_DEV3_SPACE, CFG_DEV3_SIZE);
+
+	/* configure device timing */
+#ifdef CFG_DEV0_PAR
+	if (!sram_boot)
+		GT_REG_WRITE(DEVICE_BANK0PARAMETERS, CFG_DEV0_PAR);
+#endif
+
+#ifdef CFG_DEV1_PAR
+	GT_REG_WRITE(DEVICE_BANK1PARAMETERS, CFG_DEV1_PAR);
+#endif
+#ifdef CFG_DEV2_PAR
+	GT_REG_WRITE(DEVICE_BANK2PARAMETERS, CFG_DEV2_PAR);
+#endif
+
+#ifdef CFG_32BIT_BOOT_PAR
+	/* detect if we are booting from the 32 bit flash */
+	if (GTREGREAD(DEVICE_BOOT_BANK_PARAMETERS) & (0x3 << 20)) {
+		/* 32 bit boot flash */
+		GT_REG_WRITE(DEVICE_BANK3PARAMETERS, CFG_8BIT_BOOT_PAR);
+		GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CFG_32BIT_BOOT_PAR);
+	} else {
+		/* 8 bit boot flash */
+		GT_REG_WRITE(DEVICE_BANK3PARAMETERS, CFG_32BIT_BOOT_PAR);
+		GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CFG_8BIT_BOOT_PAR);
+	}
+#else
+	/* 8 bit boot flash only */
+	GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CFG_8BIT_BOOT_PAR);
+#endif
+
+	gt_cpu_config();
+
+	/* MPP setup */
+	GT_REG_WRITE(MPP_CONTROL0, CFG_MPP_CONTROL_0);
+	GT_REG_WRITE(MPP_CONTROL1, CFG_MPP_CONTROL_1);
+	GT_REG_WRITE(MPP_CONTROL2, CFG_MPP_CONTROL_2);
+	GT_REG_WRITE(MPP_CONTROL3, CFG_MPP_CONTROL_3);
+
+	GT_REG_WRITE(GPP_LEVEL_CONTROL, CFG_GPP_LEVEL_CONTROL);
+	GT_REG_WRITE(SERIAL_PORT_MULTIPLEX, CFG_SERIAL_PORT_MUX);
+
+	return 0;
+}
+
+/* various things to do after relocation */
+
+int misc_init_r (void)
+{
+	icache_enable();
+#ifdef CFG_L2
+	l2cache_enable();
+#endif
+
+#ifdef CONFIG_MPSC
+	mpsc_init2();
+#endif
+
+#ifdef CONFIG_ZUMA_V2
+	zuma_mbox_init();
+#endif
+	return (0);
+}
+
+void
+after_reloc(gd_t *gd, ulong dest_addr)
+{
+	/* check to see if we booted from the sram.  If so, move things
+	 * back to the way they should be. (we're running from main
+	 * memory at this point now */
+
+	if (memoryGetDeviceBaseAddress(DEVICE0) == CFG_MONITOR_BASE) {
+		memoryMapDeviceSpace(DEVICE0, CFG_DEV0_SPACE, CFG_DEV0_SIZE);
+		memoryMapDeviceSpace(BOOT_DEVICE, CFG_FLASH_BASE, _1M);
+	}
+
+	/* now, jump to the main U-Boot board init code */
+	board_init_r (gd, dest_addr);
+
+	/* NOTREACHED */
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int
+checkboard (void)
+{
+	puts ("Board: " CFG_BOARD_NAME "\n");
+	return (0);
+}
+
+/* utility functions */
+void
+debug_led(int led, int mode)
+{
+#ifndef CONFIG_ZUMA_V2
+        volatile int *addr = NULL;
+        int dummy;
+
+        if (mode == 1) {
+                switch (led) {
+                case 0:
+                        addr = (int *)((unsigned int)CFG_DEV1_SPACE | 0x08000);
+                        break;
+
+                case 1:
+                        addr = (int *)((unsigned int)CFG_DEV1_SPACE | 0x0c000);
+                        break;
+
+                case 2:
+                        addr = (int *)((unsigned int)CFG_DEV1_SPACE | 0x10000);
+                        break;
+                }
+        } else if (mode == 0) {
+                switch (led) {
+                case 0:
+                        addr = (int *)((unsigned int)CFG_DEV1_SPACE | 0x14000);
+                        break;
+
+                case 1:
+                        addr = (int *)((unsigned int)CFG_DEV1_SPACE | 0x18000);
+                        break;
+
+                case 2:
+                        addr = (int *)((unsigned int)CFG_DEV1_SPACE | 0x1c000);
+                        break;
+                }
+        }
+	WRITE_CHAR(addr, 0);
+        dummy = *addr;
+#endif /* CONFIG_ZUMA_V2 */
+}
+
+void
+display_mem_map(void)
+{
+    int i,j;
+    unsigned int base,size,width;
+    /* SDRAM */
+    printf("SDRAM\n");
+    for(i=0;i<=BANK3;i++) {
+	base = memoryGetBankBaseAddress(i);
+	size = memoryGetBankSize(i);
+	if(size !=0)
+	{
+	    printf("BANK%d: base - 0x%08x\tsize - %dM bytes\n",i,base,size>>20);
+	}
+    }
+
+    /* CPU's PCI windows */
+    for(i=0;i<=PCI_HOST1;i++) {
+	printf("\nCPU's PCI %d windows\n", i);
+	base=pciGetSpaceBase(i,PCI_IO);
+	size=pciGetSpaceSize(i,PCI_IO);
+	printf("      IO: base - 0x%08x\tsize - %dM bytes\n",base,size>>20);
+	for(j=0;j<=PCI_REGION3;j++) {
+	    base = pciGetSpaceBase(i,j);
+	    size = pciGetSpaceSize(i,j);
+	    printf("MEMORY %d: base - 0x%08x\tsize - %dM bytes\n",j,base,
+		    size>>20);
+	}
+    }
+
+    /* Devices */
+    printf("\nDEVICES\n");
+	for(i=0;i<=DEVICE3;i++) {
+	base = memoryGetDeviceBaseAddress(i);
+	size = memoryGetDeviceSize(i);
+	width= memoryGetDeviceWidth(i) * 8;
+	printf("DEV %d:  base - 0x%08x\tsize - %dM bytes\twidth - %d bits\n",
+	       i, base, size>>20, width);
+    }
+
+    /* Bootrom */
+    base = memoryGetDeviceBaseAddress(BOOT_DEVICE); /* Boot */
+    size = memoryGetDeviceSize(BOOT_DEVICE);
+    width= memoryGetDeviceWidth(BOOT_DEVICE) * 8;
+    printf(" BOOT:  base - 0x%08x\tsize - %dM bytes\twidth - %d bits\n",
+	   base, size>>20, width);
+}
+