--- /dev/null
+/*
+ * arch/ppc/platforms/4xx/yucca.c
+ *
+ * Yucca board specific routines
+ *
+ * Roland Dreier <rolandd@cisco.com> (based on luan.c by Matt Porter)
+ *
+ * Copyright 2004-2005 MontaVista Software Inc.
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ *
+ * 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/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/serial_core.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/ibm44x_common.h>
+#include <syslib/ibm440gx_common.h>
+#include <syslib/ibm440sp_common.h>
+#include <syslib/ppc440spe_pcie.h>
+
+extern bd_t __res;
+
+static struct ibm44x_clocks clocks __initdata;
+
+static void __init
+yucca_calibrate_decr(void)
+{
+ unsigned int freq;
+
+ if (mfspr(SPRN_CCR1) & CCR1_TCS)
+ freq = YUCCA_TMR_CLK;
+ else
+ freq = clocks.cpu;
+
+ ibm44x_calibrate_decr(freq);
+}
+
+static int
+yucca_show_cpuinfo(struct seq_file *m)
+{
+ seq_printf(m, "vendor\t\t: AMCC\n");
+ seq_printf(m, "machine\t\t: PPC440SPe EVB (Yucca)\n");
+
+ return 0;
+}
+
+static enum {
+ HOSE_UNKNOWN,
+ HOSE_PCIX,
+ HOSE_PCIE0,
+ HOSE_PCIE1,
+ HOSE_PCIE2
+} hose_type[4];
+
+static inline int
+yucca_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+ struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
+
+ if (hose_type[hose->index] == HOSE_PCIX) {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ { 81, -1, -1, -1 }, /* IDSEL 1 - PCIX0 Slot 0 */
+ };
+ const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+ } else if (hose_type[hose->index] == HOSE_PCIE0) {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ { 96, 97, 98, 99 },
+ };
+ const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+ } else if (hose_type[hose->index] == HOSE_PCIE1) {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ { 100, 101, 102, 103 },
+ };
+ const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+ } else if (hose_type[hose->index] == HOSE_PCIE2) {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ { 104, 105, 106, 107 },
+ };
+ const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+ }
+ return -1;
+}
+
+static void __init yucca_set_emacdata(void)
+{
+ struct ocp_def *def;
+ struct ocp_func_emac_data *emacdata;
+
+ /* Set phy_map, phy_mode, and mac_addr for the EMAC */
+ def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 0);
+ emacdata = def->additions;
+ emacdata->phy_map = 0x00000001; /* Skip 0x00 */
+ emacdata->phy_mode = PHY_MODE_GMII;
+ memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6);
+}
+
+static int __init yucca_pcie_card_present(int port)
+{
+ void __iomem *pcie_fpga_base;
+ u16 reg;
+
+ pcie_fpga_base = ioremap64(YUCCA_FPGA_REG_BASE, YUCCA_FPGA_REG_SIZE);
+ reg = in_be16(pcie_fpga_base + FPGA_REG1C);
+ iounmap(pcie_fpga_base);
+
+ switch(port) {
+ case 0: return !(reg & FPGA_REG1C_PE0_PRSNT);
+ case 1: return !(reg & FPGA_REG1C_PE1_PRSNT);
+ case 2: return !(reg & FPGA_REG1C_PE2_PRSNT);
+ default: return 0;
+ }
+}
+
+/*
+ * For the given slot, set rootpoint mode, send power to the slot,
+ * turn on the green LED and turn off the yellow LED, enable the clock
+ * and turn off reset.
+ */
+static void __init yucca_setup_pcie_fpga_rootpoint(int port)
+{
+ void __iomem *pcie_reg_fpga_base;
+ u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
+
+ pcie_reg_fpga_base = ioremap64(YUCCA_FPGA_REG_BASE, YUCCA_FPGA_REG_SIZE);
+
+ switch(port) {
+ case 0:
+ rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
+ endpoint = 0;
+ power = FPGA_REG1A_PE0_PWRON;
+ green_led = FPGA_REG1A_PE0_GLED;
+ clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
+ yellow_led = FPGA_REG1A_PE0_YLED;
+ reset_off = FPGA_REG1C_PE0_PERST;
+ break;
+ case 1:
+ rootpoint = 0;
+ endpoint = FPGA_REG1C_PE1_ENDPOINT;
+ power = FPGA_REG1A_PE1_PWRON;
+ green_led = FPGA_REG1A_PE1_GLED;
+ clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
+ yellow_led = FPGA_REG1A_PE1_YLED;
+ reset_off = FPGA_REG1C_PE1_PERST;
+ break;
+ case 2:
+ rootpoint = 0;
+ endpoint = FPGA_REG1C_PE2_ENDPOINT;
+ power = FPGA_REG1A_PE2_PWRON;
+ green_led = FPGA_REG1A_PE2_GLED;
+ clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
+ yellow_led = FPGA_REG1A_PE2_YLED;
+ reset_off = FPGA_REG1C_PE2_PERST;
+ break;
+
+ default:
+ return;
+ }
+
+ out_be16(pcie_reg_fpga_base + FPGA_REG1A,
+ ~(power | clock | green_led) &
+ (yellow_led | in_be16(pcie_reg_fpga_base + FPGA_REG1A)));
+ out_be16(pcie_reg_fpga_base + FPGA_REG1C,
+ ~(endpoint | reset_off) &
+ (rootpoint | in_be16(pcie_reg_fpga_base + FPGA_REG1C)));
+
+ /*
+ * Leave device in reset for a while after powering on the
+ * slot to give it a chance to initialize.
+ */
+ mdelay(250);
+
+ out_be16(pcie_reg_fpga_base + FPGA_REG1C,
+ reset_off | in_be16(pcie_reg_fpga_base + FPGA_REG1C));
+
+ iounmap(pcie_reg_fpga_base);
+}
+
+static void __init
+yucca_setup_hoses(void)
+{
+ struct pci_controller *hose;
+ char name[20];
+ int i;
+
+ if (0 && ppc440spe_init_pcie()) {
+ printk(KERN_WARNING "PPC440SPe PCI Express initialization failed\n");
+ return;
+ }
+
+ for (i = 0; i <= 2; ++i) {
+ if (!yucca_pcie_card_present(i))
+ continue;
+
+ printk(KERN_INFO "PCIE%d: card present\n", i);
+ yucca_setup_pcie_fpga_rootpoint(i);
+ if (ppc440spe_init_pcie_rootport(i)) {
+ printk(KERN_WARNING "PCIE%d: initialization failed\n", i);
+ continue;
+ }
+
+ hose = pcibios_alloc_controller();
+ if (!hose)
+ return;
+
+ sprintf(name, "PCIE%d host bridge", i);
+ pci_init_resource(&hose->io_resource,
+ YUCCA_PCIX_LOWER_IO,
+ YUCCA_PCIX_UPPER_IO,
+ IORESOURCE_IO,
+ name);
+
+ hose->mem_space.start = YUCCA_PCIE_LOWER_MEM +
+ i * YUCCA_PCIE_MEM_SIZE;
+ hose->mem_space.end = hose->mem_space.start +
+ YUCCA_PCIE_MEM_SIZE - 1;
+
+ pci_init_resource(&hose->mem_resources[0],
+ hose->mem_space.start,
+ hose->mem_space.end,
+ IORESOURCE_MEM,
+ name);
+
+ hose->first_busno = 0;
+ hose->last_busno = 15;
+ hose_type[hose->index] = HOSE_PCIE0 + i;
+
+ ppc440spe_setup_pcie(hose, i);
+ hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
+ }
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = yucca_map_irq;
+}
+
+TODC_ALLOC();
+
+static void __init
+yucca_early_serial_map(void)
+{
+ struct uart_port port;
+
+ /* Setup ioremapped serial port access */
+ memset(&port, 0, sizeof(port));
+ port.membase = ioremap64(PPC440SPE_UART0_ADDR, 8);
+ port.irq = UART0_INT;
+ 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");
+ }
+
+ port.membase = ioremap64(PPC440SPE_UART1_ADDR, 8);
+ port.irq = UART1_INT;
+ port.uartclk = clocks.uart1;
+ port.line = 1;
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 1 failed\n");
+ }
+
+ port.membase = ioremap64(PPC440SPE_UART2_ADDR, 8);
+ port.irq = UART2_INT;
+ port.uartclk = BASE_BAUD;
+ port.line = 2;
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 2 failed\n");
+ }
+}
+
+static void __init
+yucca_setup_arch(void)
+{
+ yucca_set_emacdata();
+
+#if !defined(CONFIG_BDI_SWITCH)
+ /*
+ * The Abatron BDI JTAG debugger does not tolerate others
+ * mucking with the debug registers.
+ */
+ mtspr(SPRN_DBCR0, (DBCR0_TDE | DBCR0_IDM));
+#endif
+
+ /*
+ * Determine various clocks.
+ * To be completely correct we should get SysClk
+ * from FPGA, because it can be changed by on-board switches
+ * --ebs
+ */
+ /* 440GX and 440SPe clocking is the same - rd */
+ ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
+ ocp_sys_info.opb_bus_freq = clocks.opb;
+
+ /* init to some ~sane value until calibrate_delay() runs */
+ loops_per_jiffy = 50000000/HZ;
+
+ /* Setup PCIXn host bridges */
+ yucca_setup_hoses();
+
+#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
+
+ yucca_early_serial_map();
+
+ /* Identify the system */
+ printk("Yucca port (Roland Dreier <rolandd@cisco.com>)\n");
+}
+
+void __init platform_init(unsigned long r3, unsigned long r4,
+ unsigned long r5, unsigned long r6, unsigned long r7)
+{
+ ibm44x_platform_init(r3, r4, r5, r6, r7);
+
+ ppc_md.setup_arch = yucca_setup_arch;
+ ppc_md.show_cpuinfo = yucca_show_cpuinfo;
+ ppc_md.find_end_of_memory = ibm440sp_find_end_of_memory;
+ ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */
+
+ ppc_md.calibrate_decr = yucca_calibrate_decr;
+#ifdef CONFIG_KGDB
+ ppc_md.early_serial_map = yucca_early_serial_map;
+#endif
+}
--- /dev/null
+/*
+ * arch/ppc/platforms/4xx/yucca.h
+ *
+ * Yucca board definitions
+ *
+ * Roland Dreier <rolandd@cisco.com> (based on luan.h by Matt Porter)
+ *
+ * Copyright 2004-2005 MontaVista Software Inc.
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ *
+ * 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_YUCCA_H__
+#define __ASM_YUCCA_H__
+
+#include <linux/config.h>
+#include <platforms/4xx/ppc440spe.h>
+
+/* F/W TLB mapping used in bootloader glue to reset EMAC */
+#define PPC44x_EMAC0_MR0 0xa0000800
+
+/* Location of MAC addresses in PIBS image */
+#define PIBS_FLASH_BASE 0xffe00000
+#define PIBS_MAC_BASE (PIBS_FLASH_BASE+0x1b0400)
+
+/* External timer clock frequency */
+#define YUCCA_TMR_CLK 25000000
+
+/*
+ * FPGA registers
+ */
+#define YUCCA_FPGA_REG_BASE 0x00000004e2000000ULL
+#define YUCCA_FPGA_REG_SIZE 0x24
+
+#define FPGA_REG1A 0x1a
+
+#define FPGA_REG1A_PE0_GLED 0x8000
+#define FPGA_REG1A_PE1_GLED 0x4000
+#define FPGA_REG1A_PE2_GLED 0x2000
+#define FPGA_REG1A_PE0_YLED 0x1000
+#define FPGA_REG1A_PE1_YLED 0x0800
+#define FPGA_REG1A_PE2_YLED 0x0400
+#define FPGA_REG1A_PE0_PWRON 0x0200
+#define FPGA_REG1A_PE1_PWRON 0x0100
+#define FPGA_REG1A_PE2_PWRON 0x0080
+#define FPGA_REG1A_PE0_REFCLK_ENABLE 0x0040
+#define FPGA_REG1A_PE1_REFCLK_ENABLE 0x0020
+#define FPGA_REG1A_PE2_REFCLK_ENABLE 0x0010
+#define FPGA_REG1A_PE_SPREAD0 0x0008
+#define FPGA_REG1A_PE_SPREAD1 0x0004
+#define FPGA_REG1A_PE_SELSOURCE_0 0x0002
+#define FPGA_REG1A_PE_SELSOURCE_1 0x0001
+
+#define FPGA_REG1C 0x1c
+
+#define FPGA_REG1C_PE0_ROOTPOINT 0x8000
+#define FPGA_REG1C_PE1_ENDPOINT 0x4000
+#define FPGA_REG1C_PE2_ENDPOINT 0x2000
+#define FPGA_REG1C_PE0_PRSNT 0x1000
+#define FPGA_REG1C_PE1_PRSNT 0x0800
+#define FPGA_REG1C_PE2_PRSNT 0x0400
+#define FPGA_REG1C_PE0_WAKE 0x0080
+#define FPGA_REG1C_PE1_WAKE 0x0040
+#define FPGA_REG1C_PE2_WAKE 0x0020
+#define FPGA_REG1C_PE0_PERST 0x0010
+#define FPGA_REG1C_PE1_PERST 0x0008
+#define FPGA_REG1C_PE2_PERST 0x0004
+
+/*
+ * Serial port defines
+ */
+#define RS_TABLE_SIZE 3
+
+/* PIBS defined UART mappings, used before early_serial_setup */
+#define UART0_IO_BASE 0xa0000200
+#define UART1_IO_BASE 0xa0000300
+#define UART2_IO_BASE 0xa0000600
+
+#define BASE_BAUD 11059200
+#define STD_UART_OP(num) \
+ { 0, BASE_BAUD, 0, UART##num##_INT, \
+ (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST), \
+ iomem_base: (void*)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)
+
+/* PCI support */
+#define YUCCA_PCIX_LOWER_IO 0x00000000
+#define YUCCA_PCIX_UPPER_IO 0x0000ffff
+#define YUCCA_PCIX_LOWER_MEM 0x80000000
+#define YUCCA_PCIX_UPPER_MEM 0x8fffffff
+#define YUCCA_PCIE_LOWER_MEM 0x90000000
+#define YUCCA_PCIE_MEM_SIZE 0x10000000
+
+#define YUCCA_PCIX_MEM_SIZE 0x10000000
+#define YUCCA_PCIX_MEM_OFFSET 0x00000000
+#define YUCCA_PCIE_MEM_SIZE 0x10000000
+#define YUCCA_PCIE_MEM_OFFSET 0x00000000
+
+#endif /* __ASM_YUCCA_H__ */
+#endif /* __KERNEL__ */
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff