summaryrefslogtreecommitdiff
path: root/board/integratorap/integratorap.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/integratorap/integratorap.c')
-rw-r--r--board/integratorap/integratorap.c455
1 files changed, 455 insertions, 0 deletions
diff --git a/board/integratorap/integratorap.c b/board/integratorap/integratorap.c
new file mode 100644
index 0000000..960ec3a
--- /dev/null
+++ b/board/integratorap/integratorap.c
@@ -0,0 +1,455 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.com>
+ *
+ * (C) Copyright 2004
+ * ARM Ltd.
+ * Philippe Robin, <philippe.robin@arm.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>
+
+#ifdef CONFIG_PCI
+# include <pci.h>
+#endif
+
+void flash__init (void);
+void ether__init (void);
+void peripheral_power_enable (void);
+
+#if defined(CONFIG_SHOW_BOOT_PROGRESS)
+void show_boot_progress(int progress)
+{
+ printf("Boot reached stage %d\n", progress);
+}
+#endif
+
+#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
+
+static inline void delay (unsigned long loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0" (loops));
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /* arch number of Integrator Board */
+ gd->bd->bi_arch_number = 21;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = 0x00000100;
+
+ icache_enable ();
+
+ flash__init ();
+ return 0;
+}
+
+
+int misc_init_r (void)
+{
+#ifdef CONFIG_PCI
+ pci_init();
+#endif
+ setenv("verify", "n");
+ return (0);
+}
+
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+#ifdef CONFIG_PCI
+
+#ifndef CONFIG_PCI_PNP
+
+static struct pci_config_table pci_integrator_config_table[] = {
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
+ PCI_ENET0_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
+ { }
+};
+#endif
+
+// V3 access routines
+#define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v))
+#define _V3Read16(o) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)))
+
+#define _V3Write32(o,v) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned int)(v))
+#define _V3Read32(o) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)))
+
+// Compute address necessary to access PCI config space for the given
+// bus and device.
+#define PCI_CONFIG_ADDRESS( __bus, __devfn, __offset ) \
+ ({ \
+ unsigned int __address, __devicebit; \
+ unsigned short __mapaddress; \
+ unsigned int __dev = PCI_DEV(__devfn); /* FIXME to check!! (slot?) */ \
+ \
+ if (__bus == 0) { \
+ /* local bus segment so need a type 0 config cycle */ \
+ /* build the PCI configuration "address" with one-hot in A31-A11 */ \
+ __address = PCI_CONFIG_BASE; \
+ __address |= ((__devfn & 0x07) << 8); \
+ __address |= __offset & 0xFF; \
+ __mapaddress = 0x000A; /* 101=>config cycle, 0=>A1=A0=0 */ \
+ __devicebit = (1 << (__dev + 11)); \
+ \
+ if ((__devicebit & 0xFF000000) != 0) { \
+ /* high order bits are handled by the MAP register */ \
+ __mapaddress |= (__devicebit >> 16); \
+ } else { \
+ /* low order bits handled directly in the address */ \
+ __address |= __devicebit; \
+ } \
+ } else { /* bus !=0 */ \
+ /* not the local bus segment so need a type 1 config cycle */ \
+ /* A31-A24 are don't care (so clear to 0) */ \
+ __mapaddress = 0x000B; /* 101=>config cycle, 1=>A1&A0 from PCI_CFG */ \
+ __address = PCI_CONFIG_BASE; \
+ __address |= ((__bus & 0xFF) << 16); /* bits 23..16 = bus number */ \
+ __address |= ((__dev & 0x1F) << 11); /* bits 15..11 = device number */ \
+ __address |= ((__devfn & 0x07) << 8); /* bits 10..8 = function number*/ \
+ __address |= __offset & 0xFF; /* bits 7..0 = register number*/ \
+ } \
+ _V3Write16(V3_LB_MAP1, __mapaddress); \
+ \
+ __address; \
+ })
+
+// _V3OpenConfigWindow - open V3 configuration window
+#define _V3OpenConfigWindow() \
+ { \
+ /* Set up base0 to see all 512Mbytes of memory space (not */ \
+ /* prefetchable), this frees up base1 for re-use by configuration*/ \
+ /* memory */ \
+ \
+ _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \
+ 0x90 | V3_LB_BASE_M_ENABLE)); \
+ /* Set up base1 to point into configuration space, note that MAP1 */ \
+ /* register is set up by pciMakeConfigAddress(). */ \
+ \
+ _V3Write32 (V3_LB_BASE1, ((CPU_PCI_CNFG_ADRS & 0xFFF00000) | \
+ 0x40 | V3_LB_BASE_M_ENABLE)); \
+ }
+
+// _V3CloseConfigWindow - close V3 configuration window
+#define _V3CloseConfigWindow() \
+ { \
+ /* Reassign base1 for use by prefetchable PCI memory */ \
+ _V3Write32 (V3_LB_BASE1, (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) \
+ | 0x84 | V3_LB_BASE_M_ENABLE)); \
+ _V3Write16 (V3_LB_MAP1, \
+ (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) >> 16) | 0x0006); \
+ \
+ /* And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */ \
+ \
+ _V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) | \
+ 0x80 | V3_LB_BASE_M_ENABLE)); \
+ }
+
+
+static int pci_integrator_read_byte(struct pci_controller *hose, pci_dev_t dev,
+ int offset, unsigned char *val)
+{
+ _V3OpenConfigWindow();
+ *val = *(volatile unsigned char *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset);
+ _V3CloseConfigWindow();
+
+ return 0;
+}
+
+static int pci_integrator_read__word(struct pci_controller *hose, pci_dev_t dev,
+ int offset, unsigned short *val)
+{
+ _V3OpenConfigWindow();
+ *val = *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset);
+ _V3CloseConfigWindow();
+
+ return 0;
+}
+
+static int pci_integrator_read_dword(struct pci_controller *hose, pci_dev_t dev,
+ int offset, unsigned int *val)
+{
+ _V3OpenConfigWindow();
+ *val = *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset);
+ *val |= (*(volatile unsigned int *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), (offset+2))) << 16;
+ _V3CloseConfigWindow();
+
+ return 0;
+}
+
+static int pci_integrator_write_byte(struct pci_controller *hose, pci_dev_t dev,
+ int offset, unsigned char val)
+{
+ _V3OpenConfigWindow();
+ *(volatile unsigned char *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset) = val;
+ _V3CloseConfigWindow();
+
+ return 0;
+}
+
+static int pci_integrator_write_word(struct pci_controller *hose, pci_dev_t dev,
+ int offset,unsigned short val)
+{
+ _V3OpenConfigWindow();
+ *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset) = val;
+ _V3CloseConfigWindow();
+
+ return 0;
+}
+
+static int pci_integrator_write_dword(struct pci_controller *hose, pci_dev_t dev,
+ int offset, unsigned int val)
+{
+ _V3OpenConfigWindow();
+ *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), offset) = (val & 0xFFFF);
+ *(volatile unsigned short *)PCI_CONFIG_ADDRESS(PCI_BUS(dev), PCI_FUNC(dev), (offset + 2)) = ((val >> 16) & 0xFFFF);
+ _V3CloseConfigWindow();
+
+ return 0;
+}
+
+/******************************
+ * PCI initialisation
+ ******************************/
+
+struct pci_controller integrator_hose = {
+#ifndef CONFIG_PCI_PNP
+ config_table: pci_integrator_config_table,
+#endif
+};
+
+void pci_init_board(void)
+{
+ volatile int i, j;
+ struct pci_controller *hose = &integrator_hose;
+
+ /* setting this register will take the V3 out of reset */
+
+ *(volatile unsigned int *)(INTEGRATOR_SC_PCIENABLE) = 1;
+
+ /* wait a few usecs to settle the device and the PCI bus */
+
+ for (i = 0; i < 100 ; i++)
+ j = i + 1;
+
+ /* Now write the Base I/O Address Word to V3_BASE + 0x6C */
+
+ *(volatile unsigned short *)(V3_BASE + V3_LB_IO_BASE) = (unsigned short)(V3_BASE >> 16);
+
+ do {
+ *(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA) = 0xAA;
+ *(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA + 4) = 0x55;
+ } while (*(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA) != 0xAA ||
+ *(volatile unsigned char *)(V3_BASE + V3_MAIL_DATA + 4) != 0x55);
+
+ /* Make sure that V3 register access is not locked, if it is, unlock it */
+
+ if ((*(volatile unsigned short *)(V3_BASE + V3_SYSTEM) & V3_SYSTEM_M_LOCK)
+ == V3_SYSTEM_M_LOCK)
+ *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) = 0xA05F;
+
+ /* Ensure that the slave accesses from PCI are disabled while we */
+ /* setup windows */
+
+ *(volatile unsigned short *)(V3_BASE + V3_PCI_CMD) &=
+ ~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN);
+
+ /* Clear RST_OUT to 0; keep the PCI bus in reset until we've finished */
+
+ *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) &= ~V3_SYSTEM_M_RST_OUT;
+
+ /* Make all accesses from PCI space retry until we're ready for them */
+
+ *(volatile unsigned short *)(V3_BASE + V3_PCI_CFG) |= V3_PCI_CFG_M_RETRY_EN;
+
+ /* Set up any V3 PCI Configuration Registers that we absolutely have to */
+ /* LB_CFG controls Local Bus protocol. */
+ /* Enable LocalBus byte strobes for READ accesses too. */
+ /* set bit 7 BE_IMODE and bit 6 BE_OMODE */
+
+ *(volatile unsigned short *)(V3_BASE + V3_LB_CFG) |= 0x0C0;
+
+ /* PCI_CMD controls overall PCI operation. */
+ /* Enable PCI bus master. */
+
+ *(volatile unsigned short *)(V3_BASE + V3_PCI_CMD) |= 0x04;
+
+ /* PCI_MAP0 controls where the PCI to CPU memory window is on Local Bus*/
+
+ *(volatile unsigned int *)(V3_BASE + V3_PCI_MAP0) = (INTEGRATOR_BOOT_ROM_BASE) |
+ (V3_PCI_MAP_M_ADR_SIZE_512M |
+ V3_PCI_MAP_M_REG_EN |
+ V3_PCI_MAP_M_ENABLE);
+
+ /* PCI_BASE0 is the PCI address of the start of the window */
+
+ *(volatile unsigned int *)(V3_BASE + V3_PCI_BASE0) = INTEGRATOR_BOOT_ROM_BASE;
+
+ /* PCI_MAP1 is LOCAL address of the start of the window */
+
+ *(volatile unsigned int *)(V3_BASE + V3_PCI_MAP1) = (INTEGRATOR_HDR0_SDRAM_BASE) |
+ (V3_PCI_MAP_M_ADR_SIZE_1024M | V3_PCI_MAP_M_REG_EN |
+ V3_PCI_MAP_M_ENABLE);
+
+ /* PCI_BASE1 is the PCI address of the start of the window */
+
+ *(volatile unsigned int *)(V3_BASE + V3_PCI_BASE1) = INTEGRATOR_HDR0_SDRAM_BASE;
+
+ /* Set up the windows from local bus memory into PCI configuration, */
+ /* I/O and Memory. */
+ /* PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this. */
+
+ *(volatile unsigned short *)(V3_BASE +V3_LB_BASE2) =
+ ((CPU_PCI_IO_ADRS >> 24) << 8) | V3_LB_BASE_M_ENABLE;
+ *(volatile unsigned short *)(V3_BASE + V3_LB_MAP2) = 0;
+
+ /* PCI Configuration, use LB_BASE1/LB_MAP1. */
+
+ /* PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1 */
+ /* Map first 256Mbytes as non-prefetchable via BASE0/MAP0 */
+ /* (INTEGRATOR_PCI_BASE == PCI_MEM_BASE) */
+
+ *(volatile unsigned int *)(V3_BASE + V3_LB_BASE0) =
+ INTEGRATOR_PCI_BASE | (0x80 | V3_LB_BASE_M_ENABLE);
+
+ *(volatile unsigned short *)(V3_BASE + V3_LB_MAP0) =
+ ((INTEGRATOR_PCI_BASE >> 20) << 0x4) | 0x0006;
+
+ /* Map second 256 Mbytes as prefetchable via BASE1/MAP1 */
+
+ *(volatile unsigned int *)(V3_BASE + V3_LB_BASE1) =
+ INTEGRATOR_PCI_BASE | (0x84 | V3_LB_BASE_M_ENABLE);
+
+ *(volatile unsigned short *)(V3_BASE + V3_LB_MAP1) =
+ (((INTEGRATOR_PCI_BASE + 0x10000000) >> 20) << 4) | 0x0006;
+
+ /* Allow accesses to PCI Configuration space */
+ /* and set up A1, A0 for type 1 config cycles */
+
+ *(volatile unsigned short *)(V3_BASE + V3_PCI_CFG) =
+ ((*(volatile unsigned short *)(V3_BASE + V3_PCI_CFG)) &
+ ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1) ) |
+ V3_PCI_CFG_M_AD_LOW0;
+
+ /* now we can allow in PCI MEMORY accesses */
+
+ *(volatile unsigned short *)(V3_BASE + V3_PCI_CMD) =
+ (*(volatile unsigned short *)(V3_BASE + V3_PCI_CMD)) | V3_COMMAND_M_MEM_EN;
+
+ /* Set RST_OUT to take the PCI bus is out of reset, PCI devices can */
+ /* initialise and lock the V3 system register so that no one else */
+ /* can play with it */
+
+ *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) =
+ (*(volatile unsigned short *)(V3_BASE + V3_SYSTEM)) | V3_SYSTEM_M_RST_OUT;
+
+ *(volatile unsigned short *)(V3_BASE + V3_SYSTEM) =
+ (*(volatile unsigned short *)(V3_BASE + V3_SYSTEM)) | V3_SYSTEM_M_LOCK;
+
+ /*
+ * Register the hose
+ */
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+
+ /* System memory space */
+ pci_set_region(hose->regions + 0,
+ 0x00000000, 0x40000000, 0x01000000,
+ PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+ /* PCI Memory - config space */
+ pci_set_region(hose->regions + 1,
+ 0x00000000, 0x62000000, 0x01000000,
+ PCI_REGION_MEM);
+
+ /* PCI V3 regs */
+ pci_set_region(hose->regions + 2,
+ 0x00000000, 0x61000000, 0x00080000,
+ PCI_REGION_MEM);
+
+ /* PCI I/O space */
+ pci_set_region(hose->regions + 3,
+ 0x00000000, 0x60000000, 0x00010000,
+ PCI_REGION_IO);
+
+ pci_set_ops(hose,
+ pci_integrator_read_byte,
+ pci_integrator_read__word,
+ pci_integrator_read_dword,
+ pci_integrator_write_byte,
+ pci_integrator_write_word,
+ pci_integrator_write_dword);
+
+ hose->region_count = 4;
+
+ pci_register_hose(hose);
+
+ pciauto_config_init(hose);
+ pciauto_config_device(hose, 0);
+
+ hose->last_busno = pci_hose_scan(hose);
+}
+#endif
+
+/******************************
+ Routine:
+ Description:
+******************************/
+void flash__init (void)
+{
+}
+/*************************************************************
+ Routine:ether__init
+ Description: take the Ethernet controller out of reset and wait
+ for the EEPROM load to complete.
+*************************************************************/
+void ether__init (void)
+{
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+int dram_init (void)
+{
+ return 0;
+}
+
generated by cgit v1.1 at 2024-11-28 10:33:17 +0000