Add Bamboo platform support. This is an AMCC 440EP-based
reference platform.
Signed-off-by: Wade Farnsworth <[email protected]>
Signed-off-by: Matt Porter <[email protected]>
diff --git a/arch/ppc/platforms/4xx/bamboo.c b/arch/ppc/platforms/4xx/bamboo.c
new file mode 100644
--- /dev/null
+++ b/arch/ppc/platforms/4xx/bamboo.c
@@ -0,0 +1,427 @@
+/*
+ * arch/ppc/platforms/4xx/bamboo.c
+ *
+ * Bamboo board specific routines
+ *
+ * Wade Farnsworth <[email protected]>
+ * Copyright 2004 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/types.h>
+#include <linux/major.h>
+#include <linux/blkdev.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/initrd.h>
+#include <linux/irq.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/ethtool.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ocp.h>
+#include <asm/pci-bridge.h>
+#include <asm/time.h>
+#include <asm/todc.h>
+#include <asm/bootinfo.h>
+#include <asm/ppc4xx_pic.h>
+#include <asm/ppcboot.h>
+
+#include <syslib/gen550.h>
+#include <syslib/ibm440gx_common.h>
+
+/*
+ * This is a horrible kludge, we eventually need to abstract this
+ * generic PHY stuff, so the standard phy mode defines can be
+ * easily used from arch code.
+ */
+#include "../../../../drivers/net/ibm_emac/ibm_emac_phy.h"
+
+bd_t __res;
+
+static struct ibm44x_clocks clocks __initdata;
+
+/*
+ * Bamboo external IRQ triggering/polarity settings
+ */
+unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ0: Ethernet transceiver */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ1: Expansion connector */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ2: PCI slot 0 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ3: PCI slot 1 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ4: PCI slot 2 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ5: PCI slot 3 */
+ (IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* IRQ6: SMI pushbutton */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ7: EXT */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ8: EXT */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ9: EXT */
+};
+
+static void __init
+bamboo_calibrate_decr(void)
+{
+ unsigned int freq;
+
+ if (mfspr(SPRN_CCR1) & CCR1_TCS)
+ freq = BAMBOO_TMRCLK;
+ else
+ freq = clocks.cpu;
+
+ ibm44x_calibrate_decr(freq);
+
+}
+
+static int
+bamboo_show_cpuinfo(struct seq_file *m)
+{
+ seq_printf(m, "vendor\t\t: IBM\n");
+ seq_printf(m, "machine\t\t: PPC440EP EVB (Bamboo)\n");
+
+ return 0;
+}
+
+static inline int
+bamboo_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 0 */
+ { 27, 27, 27, 27 }, /* IDSEL 2 - PCI Slot 1 */
+ { 26, 26, 26, 26 }, /* IDSEL 3 - PCI Slot 2 */
+ { 25, 25, 25, 25 }, /* IDSEL 4 - PCI Slot 3 */
+ };
+
+ const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+
+static void __init bamboo_set_emacdata(void)
+{
+ unsigned char * selection1_base;
+ struct ocp_def *def;
+ struct ocp_func_emac_data *emacdata;
+ u8 selection1_val;
+ int mode;
+
+ selection1_base = ioremap64(BAMBOO_FPGA_SELECTION1_REG_ADDR, 16);
+ selection1_val = readb(selection1_base);
+ iounmap((void *) selection1_base);
+ if (BAMBOO_SEL_MII(selection1_val))
+ mode = PHY_MODE_MII;
+ else if (BAMBOO_SEL_RMII(selection1_val))
+ mode = PHY_MODE_RMII;
+ else
+ mode = PHY_MODE_SMII;
+
+ /* Set mac_addr and phy mode for each EMAC */
+
+ def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 0);
+ emacdata = def->additions;
+ memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6);
+ emacdata->phy_mode = mode;
+
+ def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 1);
+ emacdata = def->additions;
+ memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6);
+ emacdata->phy_mode = mode;
+}
+
+static int
+bamboo_exclude_device(unsigned char bus, unsigned char devfn)
+{
+ return (bus == 0 && devfn == 0);
+}
+
+#define PCI_READW(offset) \
+ (readw((void *)((u32)pci_reg_base+offset)))
+
+#define PCI_WRITEW(value, offset) \
+ (writew(value, (void *)((u32)pci_reg_base+offset)))
+
+#define PCI_WRITEL(value, offset) \
+ (writel(value, (void *)((u32)pci_reg_base+offset)))
+
+static void __init
+bamboo_setup_pci(void)
+{
+ void *pci_reg_base;
+ unsigned long memory_size;
+ memory_size = ppc_md.find_end_of_memory();
+
+ pci_reg_base = ioremap64(BAMBOO_PCIL0_BASE, BAMBOO_PCIL0_SIZE);
+
+ /* Enable PCI I/O, Mem, and Busmaster cycles */
+ PCI_WRITEW(PCI_READW(PCI_COMMAND) |
+ PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER, PCI_COMMAND);
+
+ /* Disable region first */
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM0MA);
+
+ /* PLB starting addr: 0x00000000A0000000 */
+ PCI_WRITEL(BAMBOO_PCI_PHY_MEM_BASE, BAMBOO_PCIL0_PMM0LA);
+
+ /* PCI start addr, 0xA0000000 (PCI Address) */
+ PCI_WRITEL(BAMBOO_PCI_MEM_BASE, BAMBOO_PCIL0_PMM0PCILA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM0PCIHA);
+
+ /* Enable no pre-fetch, enable region */
+ PCI_WRITEL(((0xffffffff -
+ (BAMBOO_PCI_UPPER_MEM - BAMBOO_PCI_MEM_BASE)) | 0x01),
+ BAMBOO_PCIL0_PMM0MA);
+
+ /* Disable region one */
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM1MA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM1LA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM1PCILA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM1PCIHA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM1MA);
+
+ /* Disable region two */
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM2MA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM2LA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM2PCILA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM2PCIHA);
+ PCI_WRITEL(0, BAMBOO_PCIL0_PMM2MA);
+
+ /* Now configure the PCI->PLB windows, we only use PTM1
+ *
+ * For Inbound flow, set the window size to all available memory
+ * This is required because if size is smaller,
+ * then Eth/PCI DD would fail as PCI card not able to access
+ * the memory allocated by DD.
+ */
+
+ PCI_WRITEL(0, BAMBOO_PCIL0_PTM1MS); /* disabled region 1 */
+ PCI_WRITEL(0, BAMBOO_PCIL0_PTM1LA); /* begin of address map */
+
+ memory_size = 1 << fls(memory_size - 1);
+
+ /* Size low + Enabled */
+ PCI_WRITEL((0xffffffff - (memory_size - 1)) | 0x1, BAMBOO_PCIL0_PTM1MS);
+
+ eieio();
+ iounmap(pci_reg_base);
+}
+
+static void __init
+bamboo_setup_hose(void)
+{
+ unsigned int bar_response, bar;
+ struct pci_controller *hose;
+
+ bamboo_setup_pci();
+
+ hose = pcibios_alloc_controller();
+
+ if (!hose)
+ return;
+
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+
+ hose->pci_mem_offset = BAMBOO_PCI_MEM_OFFSET;
+
+ pci_init_resource(&hose->io_resource,
+ BAMBOO_PCI_LOWER_IO,
+ BAMBOO_PCI_UPPER_IO,
+ IORESOURCE_IO,
+ "PCI host bridge");
+
+ pci_init_resource(&hose->mem_resources[0],
+ BAMBOO_PCI_LOWER_MEM,
+ BAMBOO_PCI_UPPER_MEM,
+ IORESOURCE_MEM,
+ "PCI host bridge");
+
+ ppc_md.pci_exclude_device = bamboo_exclude_device;
+
+ hose->io_space.start = BAMBOO_PCI_LOWER_IO;
+ hose->io_space.end = BAMBOO_PCI_UPPER_IO;
+ hose->mem_space.start = BAMBOO_PCI_LOWER_MEM;
+ hose->mem_space.end = BAMBOO_PCI_UPPER_MEM;
+ isa_io_base =
+ (unsigned long)ioremap64(BAMBOO_PCI_IO_BASE, BAMBOO_PCI_IO_SIZE);
+ hose->io_base_virt = (void *)isa_io_base;
+
+ setup_indirect_pci(hose,
+ BAMBOO_PCI_CFGA_PLB32,
+ BAMBOO_PCI_CFGD_PLB32);
+ hose->set_cfg_type = 1;
+
+ /* 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);
+ }
+
+ hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = bamboo_map_irq;
+}
+
+TODC_ALLOC();
+
+static void __init
+bamboo_early_serial_map(void)
+{
+ struct uart_port port;
+
+ /* Setup ioremapped serial port access */
+ memset(&port, 0, sizeof(port));
+ port.membase = ioremap64(PPC440EP_UART0_ADDR, 8);
+ port.irq = 0;
+ port.uartclk = clocks.uart0;
+ port.regshift = 0;
+ port.iotype = SERIAL_IO_MEM;
+ port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+ port.line = 0;
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 0 failed\n");
+ }
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+ /* Configure debug serial access */
+ gen550_init(0, &port);
+#endif
+
+ port.membase = ioremap64(PPC440EP_UART1_ADDR, 8);
+ port.irq = 1;
+ port.uartclk = clocks.uart1;
+ port.line = 1;
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 1 failed\n");
+ }
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+ /* Configure debug serial access */
+ gen550_init(1, &port);
+#endif
+
+ port.membase = ioremap64(PPC440EP_UART2_ADDR, 8);
+ port.irq = 3;
+ port.uartclk = clocks.uart2;
+ port.line = 2;
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 2 failed\n");
+ }
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+ /* Configure debug serial access */
+ gen550_init(2, &port);
+#endif
+
+ port.membase = ioremap64(PPC440EP_UART3_ADDR, 8);
+ port.irq = 4;
+ port.uartclk = clocks.uart3;
+ port.line = 3;
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 3 failed\n");
+ }
+}
+
+static void __init
+bamboo_setup_arch(void)
+{
+
+ bamboo_set_emacdata();
+
+ ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
+ ocp_sys_info.opb_bus_freq = clocks.opb;
+
+ /* Setup TODC access */
+ TODC_INIT(TODC_TYPE_DS1743,
+ 0,
+ 0,
+ ioremap64(BAMBOO_RTC_ADDR, BAMBOO_RTC_SIZE),
+ 8);
+
+ /* init to some ~sane value until calibrate_delay() runs */
+ loops_per_jiffy = 50000000/HZ;
+
+ /* Setup PCI host bridge */
+ bamboo_setup_hose();
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ if (initrd_start)
+ ROOT_DEV = Root_RAM0;
+ else
+#endif
+#ifdef CONFIG_ROOT_NFS
+ ROOT_DEV = Root_NFS;
+#else
+ ROOT_DEV = Root_HDA1;
+#endif
+
+ bamboo_early_serial_map();
+
+ /* Identify the system */
+ printk("IBM Bamboo port (MontaVista Software, Inc. ([email protected]))\n");
+}
+
+void __init platform_init(unsigned long r3, unsigned long r4,
+ unsigned long r5, unsigned long r6, unsigned long r7)
+{
+ parse_bootinfo(find_bootinfo());
+
+ /*
+ * If we were passed in a board information, copy it into the
+ * residual data area.
+ */
+ if (r3)
+ __res = *(bd_t *)(r3 + KERNELBASE);
+
+
+ ibm44x_platform_init();
+
+ ppc_md.setup_arch = bamboo_setup_arch;
+ ppc_md.show_cpuinfo = bamboo_show_cpuinfo;
+ ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */
+
+ ppc_md.calibrate_decr = bamboo_calibrate_decr;
+ 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;
+#ifdef CONFIG_KGDB
+ ppc_md.early_serial_map = bamboo_early_serial_map;
+#endif
+}
+
diff --git a/arch/ppc/platforms/4xx/bamboo.h b/arch/ppc/platforms/4xx/bamboo.h
new file mode 100644
--- /dev/null
+++ b/arch/ppc/platforms/4xx/bamboo.h
@@ -0,0 +1,136 @@
+/*
+ * arch/ppc/platforms/bamboo.h
+ *
+ * Bamboo board definitions
+ *
+ * Wade Farnsworth <[email protected]>
+ *
+ * Copyright 2004 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#ifdef __KERNEL__
+#ifndef __ASM_BAMBOO_H__
+#define __ASM_BAMBOO_H__
+
+#include <linux/config.h>
+#include <platforms/4xx/ibm440ep.h>
+
+/* F/W TLB mapping used in bootloader glue to reset EMAC */
+#define PPC44x_EMAC0_MR0 0x0EF600E00
+
+/* Location of MAC addresses in PIBS image */
+#define PIBS_FLASH_BASE 0xfff00000
+#define PIBS_MAC_BASE (PIBS_FLASH_BASE+0xc0400)
+#define PIBS_MAC_SIZE 0x200
+#define PIBS_MAC_OFFSET 0x100
+
+/* Default clock rate */
+#define BAMBOO_TMRCLK 25000000
+
+/* RTC/NVRAM location */
+#define BAMBOO_RTC_ADDR 0x080000000ULL
+#define BAMBOO_RTC_SIZE 0x2000
+
+/* FPGA Registers */
+#define BAMBOO_FPGA_ADDR 0x080002000ULL
+
+#define BAMBOO_FPGA_CONFIG2_REG_ADDR (BAMBOO_FPGA_ADDR + 0x1)
+#define BAMBOO_FULL_DUPLEX_EN(x) (x & 0x08)
+#define BAMBOO_FORCE_100Mbps(x) (x & 0x04)
+#define BAMBOO_AUTONEGOTIATE(x) (x & 0x02)
+
+#define BAMBOO_FPGA_SETTING_REG_ADDR (BAMBOO_FPGA_ADDR + 0x3)
+#define BAMBOO_BOOT_SMALL_FLASH(x) (!(x & 0x80))
+#define BAMBOO_LARGE_FLASH_EN(x) (!(x & 0x40))
+#define BAMBOO_BOOT_NAND_FLASH(x) (!(x & 0x20))
+
+#define BAMBOO_FPGA_SELECTION1_REG_ADDR (BAMBOO_FPGA_ADDR + 0x4)
+#define BAMBOO_SEL_MII(x) (x & 0x80)
+#define BAMBOO_SEL_RMII(x) (x & 0x40)
+#define BAMBOO_SEL_SMII(x) (x & 0x20)
+
+/* Flash */
+#define BAMBOO_SMALL_FLASH_LOW 0x087f00000ULL
+#define BAMBOO_SMALL_FLASH_HIGH 0x0fff00000ULL
+#define BAMBOO_SMALL_FLASH_SIZE 0x100000
+#define BAMBOO_LARGE_FLASH_LOW 0x087800000ULL
+#define BAMBOO_LARGE_FLASH_HIGH1 0x0ff800000ULL
+#define BAMBOO_LARGE_FLASH_HIGH2 0x0ffc00000ULL
+#define BAMBOO_LARGE_FLASH_SIZE 0x400000
+#define BAMBOO_SRAM_LOW 0x087f00000ULL
+#define BAMBOO_SRAM_HIGH1 0x0fff00000ULL
+#define BAMBOO_SRAM_HIGH2 0x0ff800000ULL
+#define BAMBOO_SRAM_SIZE 0x100000
+#define BAMBOO_NAND_FLASH_REG_ADDR 0x090000000ULL
+#define BAMBOO_NAND_FLASH_REG_SIZE 0x2000
+
+/*
+ * Serial port defines
+ */
+#define RS_TABLE_SIZE 4
+
+#define UART0_IO_BASE 0xEF600300
+#define UART1_IO_BASE 0xEF600400
+#define UART2_IO_BASE 0xEF600500
+#define UART3_IO_BASE 0xEF600600
+
+#define BASE_BAUD 33177600/3/16
+#define UART0_INT 0
+#define UART1_INT 1
+#define UART2_INT 3
+#define UART3_INT 4
+
+#define STD_UART_OP(num) \
+ { 0, BASE_BAUD, 0, UART##num##_INT, \
+ (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST), \
+ iomem_base: UART##num##_IO_BASE, \
+ io_type: SERIAL_IO_MEM},
+
+#define SERIAL_PORT_DFNS \
+ STD_UART_OP(0) \
+ STD_UART_OP(1) \
+ STD_UART_OP(2) \
+ STD_UART_OP(3)
+
+/* PCI support */
+#define BAMBOO_PCI_CFGA_PLB32 0xeec00000
+#define BAMBOO_PCI_CFGD_PLB32 0xeec00004
+
+#define BAMBOO_PCI_IO_BASE 0x00000000e8000000ULL
+#define BAMBOO_PCI_IO_SIZE 0x00010000
+#define BAMBOO_PCI_MEM_OFFSET 0x00000000
+#define BAMBOO_PCI_PHY_MEM_BASE 0x00000000a0000000ULL
+
+#define BAMBOO_PCI_LOWER_IO 0x00000000
+#define BAMBOO_PCI_UPPER_IO 0x0000ffff
+#define BAMBOO_PCI_LOWER_MEM 0xa0000000
+#define BAMBOO_PCI_UPPER_MEM 0xafffffff
+#define BAMBOO_PCI_MEM_BASE 0xa0000000
+
+#define BAMBOO_PCIL0_BASE 0x00000000ef400000ULL
+#define BAMBOO_PCIL0_SIZE 0x40
+
+#define BAMBOO_PCIL0_PMM0LA 0x000
+#define BAMBOO_PCIL0_PMM0MA 0x004
+#define BAMBOO_PCIL0_PMM0PCILA 0x008
+#define BAMBOO_PCIL0_PMM0PCIHA 0x00C
+#define BAMBOO_PCIL0_PMM1LA 0x010
+#define BAMBOO_PCIL0_PMM1MA 0x014
+#define BAMBOO_PCIL0_PMM1PCILA 0x018
+#define BAMBOO_PCIL0_PMM1PCIHA 0x01C
+#define BAMBOO_PCIL0_PMM2LA 0x020
+#define BAMBOO_PCIL0_PMM2MA 0x024
+#define BAMBOO_PCIL0_PMM2PCILA 0x028
+#define BAMBOO_PCIL0_PMM2PCIHA 0x02C
+#define BAMBOO_PCIL0_PTM1MS 0x030
+#define BAMBOO_PCIL0_PTM1LA 0x034
+#define BAMBOO_PCIL0_PTM2MS 0x038
+#define BAMBOO_PCIL0_PTM2LA 0x03C
+
+#endif /* __ASM_BAMBOO_H__ */
+#endif /* __KERNEL__ */
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