Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/sh/boards/harp/Makefile b/arch/sh/boards/harp/Makefile
new file mode 100644
index 0000000..eb753d3
--- /dev/null
+++ b/arch/sh/boards/harp/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for STMicroelectronics board specific parts of the kernel
+#
+
+obj-y := irq.o setup.o mach.o led.o
+
+obj-$(CONFIG_PCI) += pcidma.o
+
diff --git a/arch/sh/boards/harp/irq.c b/arch/sh/boards/harp/irq.c
new file mode 100644
index 0000000..acd5848
--- /dev/null
+++ b/arch/sh/boards/harp/irq.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * Looks after interrupts on the HARP board.
+ *
+ * Bases on the IPR irq system
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/harp/harp.h>
+
+
+#define NUM_EXTERNAL_IRQS 16
+
+// Early versions of the STB1 Overdrive required this nasty frig
+//#define INVERT_INTMASK_WRITES
+
+static void enable_harp_irq(unsigned int irq);
+static void disable_harp_irq(unsigned int irq);
+
+/* shutdown is same as "disable" */
+#define shutdown_harp_irq disable_harp_irq
+
+static void mask_and_ack_harp(unsigned int);
+static void end_harp_irq(unsigned int irq);
+
+static unsigned int startup_harp_irq(unsigned int irq)
+{
+ enable_harp_irq(irq);
+ return 0; /* never anything pending */
+}
+
+static struct hw_interrupt_type harp_irq_type = {
+ "Harp-IRQ",
+ startup_harp_irq,
+ shutdown_harp_irq,
+ enable_harp_irq,
+ disable_harp_irq,
+ mask_and_ack_harp,
+ end_harp_irq
+};
+
+static void disable_harp_irq(unsigned int irq)
+{
+ unsigned val, flags;
+ unsigned maskReg;
+ unsigned mask;
+ int pri;
+
+ if (irq < 0 || irq >= NUM_EXTERNAL_IRQS)
+ return;
+
+ pri = 15 - irq;
+
+ if (pri < 8) {
+ maskReg = EPLD_INTMASK0;
+ } else {
+ maskReg = EPLD_INTMASK1;
+ pri -= 8;
+ }
+
+ local_irq_save(flags);
+ mask = ctrl_inl(maskReg);
+ mask &= (~(1 << pri));
+#if defined(INVERT_INTMASK_WRITES)
+ mask ^= 0xff;
+#endif
+ ctrl_outl(mask, maskReg);
+ local_irq_restore(flags);
+}
+
+static void enable_harp_irq(unsigned int irq)
+{
+ unsigned flags;
+ unsigned maskReg;
+ unsigned mask;
+ int pri;
+
+ if (irq < 0 || irq >= NUM_EXTERNAL_IRQS)
+ return;
+
+ pri = 15 - irq;
+
+ if (pri < 8) {
+ maskReg = EPLD_INTMASK0;
+ } else {
+ maskReg = EPLD_INTMASK1;
+ pri -= 8;
+ }
+
+ local_irq_save(flags);
+ mask = ctrl_inl(maskReg);
+
+
+ mask |= (1 << pri);
+
+#if defined(INVERT_INTMASK_WRITES)
+ mask ^= 0xff;
+#endif
+ ctrl_outl(mask, maskReg);
+
+ local_irq_restore(flags);
+}
+
+/* This functions sets the desired irq handler to be an overdrive type */
+static void __init make_harp_irq(unsigned int irq)
+{
+ disable_irq_nosync(irq);
+ irq_desc[irq].handler = &harp_irq_type;
+ disable_harp_irq(irq);
+}
+
+static void mask_and_ack_harp(unsigned int irq)
+{
+ disable_harp_irq(irq);
+}
+
+static void end_harp_irq(unsigned int irq)
+{
+ enable_harp_irq(irq);
+}
+
+void __init init_harp_irq(void)
+{
+ int i;
+
+#if !defined(INVERT_INTMASK_WRITES)
+ // On the harp these are set to enable an interrupt
+ ctrl_outl(0x00, EPLD_INTMASK0);
+ ctrl_outl(0x00, EPLD_INTMASK1);
+#else
+ // On the Overdrive the data is inverted before being stored in the reg
+ ctrl_outl(0xff, EPLD_INTMASK0);
+ ctrl_outl(0xff, EPLD_INTMASK1);
+#endif
+
+ for (i = 0; i < NUM_EXTERNAL_IRQS; i++) {
+ make_harp_irq(i);
+ }
+}
diff --git a/arch/sh/boards/harp/led.c b/arch/sh/boards/harp/led.c
new file mode 100644
index 0000000..76ca4cc
--- /dev/null
+++ b/arch/sh/boards/harp/led.c
@@ -0,0 +1,52 @@
+/*
+ * linux/arch/sh/stboards/led.c
+ *
+ * Copyright (C) 2000 Stuart Menefy <stuart.menefy@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * This file contains ST40STB1 HARP and compatible code.
+ */
+
+#include <linux/config.h>
+#include <asm/io.h>
+#include <asm/harp/harp.h>
+
+/* Harp: Flash LD10 (front pannel) connected to EPLD (IC8) */
+/* Overdrive: Flash LD1 (front panel) connected to EPLD (IC4) */
+/* Works for HARP and overdrive */
+static void mach_led(int position, int value)
+{
+ if (value) {
+ ctrl_outl(EPLD_LED_ON, EPLD_LED);
+ } else {
+ ctrl_outl(EPLD_LED_OFF, EPLD_LED);
+ }
+}
+
+#ifdef CONFIG_HEARTBEAT
+
+#include <linux/sched.h>
+
+/* acts like an actual heart beat -- ie thump-thump-pause... */
+void heartbeat_harp(void)
+{
+ static unsigned cnt = 0, period = 0, dist = 0;
+
+ if (cnt == 0 || cnt == dist)
+ mach_led( -1, 1);
+ else if (cnt == 7 || cnt == dist+7)
+ mach_led( -1, 0);
+
+ if (++cnt > period) {
+ cnt = 0;
+ /* The hyperbolic function below modifies the heartbeat period
+ * length in dependency of the current (5min) load. It goes
+ * through the points f(0)=126, f(1)=86, f(5)=51,
+ * f(inf)->30. */
+ period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
+ dist = period / 4;
+ }
+}
+#endif
diff --git a/arch/sh/boards/harp/mach.c b/arch/sh/boards/harp/mach.c
new file mode 100644
index 0000000..a946dd1
--- /dev/null
+++ b/arch/sh/boards/harp/mach.c
@@ -0,0 +1,62 @@
+/*
+ * linux/arch/sh/boards/harp/mach.c
+ *
+ * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * Machine vector for the STMicroelectronics STB1 HARP and compatible boards
+ */
+
+#include <linux/init.h>
+
+#include <asm/machvec.h>
+#include <asm/rtc.h>
+#include <asm/machvec_init.h>
+#include <asm/hd64465/io.h>
+#include <asm/hd64465/hd64465.h>
+
+void setup_harp(void);
+void init_harp_irq(void);
+void heartbeat_harp(void);
+
+/*
+ * The Machine Vector
+ */
+
+struct sh_machine_vector mv_harp __initmv = {
+ .mv_nr_irqs = 89 + HD64465_IRQ_NUM,
+
+ .mv_inb = hd64465_inb,
+ .mv_inw = hd64465_inw,
+ .mv_inl = hd64465_inl,
+ .mv_outb = hd64465_outb,
+ .mv_outw = hd64465_outw,
+ .mv_outl = hd64465_outl,
+
+ .mv_inb_p = hd64465_inb_p,
+ .mv_inw_p = hd64465_inw,
+ .mv_inl_p = hd64465_inl,
+ .mv_outb_p = hd64465_outb_p,
+ .mv_outw_p = hd64465_outw,
+ .mv_outl_p = hd64465_outl,
+
+ .mv_insb = hd64465_insb,
+ .mv_insw = hd64465_insw,
+ .mv_insl = hd64465_insl,
+ .mv_outsb = hd64465_outsb,
+ .mv_outsw = hd64465_outsw,
+ .mv_outsl = hd64465_outsl,
+
+ .mv_isa_port2addr = hd64465_isa_port2addr,
+
+#ifdef CONFIG_PCI
+ .mv_init_irq = init_harp_irq,
+#endif
+#ifdef CONFIG_HEARTBEAT
+ .mv_heartbeat = heartbeat_harp,
+#endif
+};
+
+ALIAS_MV(harp)
diff --git a/arch/sh/boards/harp/pcidma.c b/arch/sh/boards/harp/pcidma.c
new file mode 100644
index 0000000..4753113
--- /dev/null
+++ b/arch/sh/boards/harp/pcidma.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * Dynamic DMA mapping support.
+ */
+
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+
+
+void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
+ dma_addr_t * dma_handle)
+{
+ void *ret;
+ int gfp = GFP_ATOMIC;
+
+ ret = (void *) __get_free_pages(gfp, get_order(size));
+
+ if (ret != NULL) {
+ /* Is it neccessary to do the memset? */
+ memset(ret, 0, size);
+ *dma_handle = virt_to_bus(ret);
+ }
+ /* We must flush the cache before we pass it on to the device */
+ flush_cache_all();
+ return P2SEGADDR(ret);
+}
+
+void pci_free_consistent(struct pci_dev *hwdev, size_t size,
+ void *vaddr, dma_addr_t dma_handle)
+{
+ unsigned long p1addr=P1SEGADDR((unsigned long)vaddr);
+
+ free_pages(p1addr, get_order(size));
+}
diff --git a/arch/sh/boards/harp/setup.c b/arch/sh/boards/harp/setup.c
new file mode 100644
index 0000000..05b01b8
--- /dev/null
+++ b/arch/sh/boards/harp/setup.c
@@ -0,0 +1,91 @@
+/*
+ * arch/sh/stboard/setup.c
+ *
+ * Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * STMicroelectronics ST40STB1 HARP and compatible support.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <asm/harp/harp.h>
+
+const char *get_system_type(void)
+{
+ return "STB1 Harp";
+}
+
+/*
+ * Initialize the board
+ */
+int __init platform_setup(void)
+{
+#ifdef CONFIG_SH_STB1_HARP
+ unsigned long ic8_version, ic36_version;
+
+ ic8_version = ctrl_inl(EPLD_REVID2);
+ ic36_version = ctrl_inl(EPLD_REVID1);
+
+ printk("STMicroelectronics STB1 HARP initialisaton\n");
+ printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n",
+ (ic8_version >> 4) & 0xf, ic8_version & 0xf,
+ (ic36_version >> 4) & 0xf, ic36_version & 0xf);
+#elif defined(CONFIG_SH_STB1_OVERDRIVE)
+ unsigned long version;
+
+ version = ctrl_inl(EPLD_REVID);
+
+ printk("STMicroelectronics STB1 Overdrive initialisaton\n");
+ printk("EPLD version: %d.%02d\n",
+ (version >> 4) & 0xf, version & 0xf);
+#else
+#error Undefined machine
+#endif
+
+ /* Currently all STB1 chips have problems with the sleep instruction,
+ * so disable it here.
+ */
+ disable_hlt();
+
+ return 0;
+}
+
+/*
+ * pcibios_map_platform_irq
+ *
+ * This is board specific and returns the IRQ for a given PCI device.
+ * It is used by the PCI code (arch/sh/kernel/st40_pci*)
+ *
+ */
+
+#define HARP_PCI_IRQ 1
+#define HARP_BRIDGE_IRQ 2
+#define OVERDRIVE_SLOT0_IRQ 0
+
+
+int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ switch (slot) {
+#ifdef CONFIG_SH_STB1_HARP
+ case 2: /*This is the PCI slot on the */
+ return HARP_PCI_IRQ;
+ case 1: /* this is the bridge */
+ return HARP_BRIDGE_IRQ;
+#elif defined(CONFIG_SH_STB1_OVERDRIVE)
+ case 1:
+ case 2:
+ case 3:
+ return slot - 1;
+#else
+#error Unknown board
+#endif
+ default:
+ return -1;
+ }
+}
+