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authorNobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com>2007-03-30 14:49:21 +0900
committerPaul Mundt <lethal@hera.kernel.org>2007-05-07 02:11:55 +0000
commitb7aee517c8302d651ff057fdcebee3c1f53c3b2e (patch)
tree35bcd214bd49175f32e2e2ab5bd8ce3b7e4c0d58 /arch/sh/drivers
parentb75762302e144b73f12b72c59b99401d036680aa (diff)
sh: se7780 PCI support.
Add support for the SH7780 PCIC on the Solution Engine 7780, missing from the previous board-support patch. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/drivers')
-rw-r--r--arch/sh/drivers/pci/Makefile1
-rw-r--r--arch/sh/drivers/pci/fixups-se7780.c60
-rw-r--r--arch/sh/drivers/pci/ops-se7780.c96
3 files changed, 157 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index b1391cb080d..0e9b532b9fb 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -19,3 +19,4 @@ obj-$(CONFIG_SH_HIGHLANDER) += ops-r7780rp.o fixups-r7780rp.o
obj-$(CONFIG_SH_TITAN) += ops-titan.o
obj-$(CONFIG_SH_LANDISK) += ops-landisk.o
obj-$(CONFIG_SH_LBOX_RE2) += ops-lboxre2.o fixups-lboxre2.o
+obj-$(CONFIG_SH_7780_SOLUTION_ENGINE) += ops-se7780.o fixups-se7780.o
diff --git a/arch/sh/drivers/pci/fixups-se7780.c b/arch/sh/drivers/pci/fixups-se7780.c
new file mode 100644
index 00000000000..880cea1c0d8
--- /dev/null
+++ b/arch/sh/drivers/pci/fixups-se7780.c
@@ -0,0 +1,60 @@
+/*
+ * arch/sh/drivers/pci/fixups-se7780.c
+ *
+ * HITACHI UL Solution Engine 7780 PCI fixups
+ *
+ * Copyright (C) 2003 Lineo uSolutions, Inc.
+ * Copyright (C) 2004 - 2006 Paul Mundt
+ * Copyright (C) 2006 Nobuhiro Iwamatsu
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/pci.h>
+#include "pci-sh4.h"
+#include <asm/io.h>
+
+int pci_fixup_pcic(void)
+{
+ ctrl_outl(0x00000001, SH7780_PCI_VCR2);
+
+ /* Enable all interrupts, so we know what to fix */
+ pci_write_reg(0x0000C3FF, SH7780_PCIIMR);
+ pci_write_reg(0x0000380F, SH7780_PCIAINTM);
+
+ /* Set up standard PCI config registers */
+ ctrl_outw(0xFB00, PCI_REG(SH7780_PCISTATUS));
+ ctrl_outw(0x0047, PCI_REG(SH7780_PCICMD));
+ ctrl_outb( 0x00, PCI_REG(SH7780_PCIPIF));
+ ctrl_outb( 0x00, PCI_REG(SH7780_PCISUB));
+ ctrl_outb( 0x06, PCI_REG(SH7780_PCIBCC));
+ ctrl_outw(0x1912, PCI_REG(SH7780_PCISVID));
+ ctrl_outw(0x0001, PCI_REG(SH7780_PCISID));
+
+ pci_write_reg(0x08000000, SH7780_PCIMBAR0); /* PCI */
+ pci_write_reg(0x08000000, SH7780_PCILAR0); /* SHwy */
+ pci_write_reg(0x07F00001, SH7780_PCILSR); /* size 128M w/ MBAR */
+
+ pci_write_reg(0x00000000, SH7780_PCIMBAR1);
+ pci_write_reg(0x00000000, SH7780_PCILAR1);
+ pci_write_reg(0x00000000, SH7780_PCILSR1);
+
+ pci_write_reg(0xAB000801, SH7780_PCIIBAR);
+
+ /*
+ * Set the MBR so PCI address is one-to-one with window,
+ * meaning all calls go straight through... use ifdef to
+ * catch erroneous assumption.
+ */
+ pci_write_reg(0xFD000000 , SH7780_PCIMBR0);
+ pci_write_reg(0x00FC0000 , SH7780_PCIMBMR0); /* 16M */
+
+ /* Set IOBR for window containing area specified in pci.h */
+ pci_write_reg(PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1), SH7780_PCIIOBR);
+ pci_write_reg((SH7780_PCI_IO_SIZE-1) & (7 << 18), SH7780_PCIIOBMR);
+
+ pci_write_reg(0xA5000C01, SH7780_PCICR);
+
+ return 0;
+}
diff --git a/arch/sh/drivers/pci/ops-se7780.c b/arch/sh/drivers/pci/ops-se7780.c
new file mode 100644
index 00000000000..212674df5e1
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-se7780.c
@@ -0,0 +1,96 @@
+/*
+ * linux/arch/sh/drivers/pci/ops-se7780.c
+ *
+ * Copyright (C) 2006 Nobuhiro Iwamatsu
+ *
+ * PCI initialization for the Hitachi UL Solution Engine 7780SE03
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <asm/se7780.h>
+#include <asm/io.h>
+#include "pci-sh4.h"
+
+/*
+ * IDSEL = AD16 PCI slot
+ * IDSEL = AD17 PCI slot
+ * IDSEL = AD18 Serial ATA Controller (Silicon Image SiL3512A)
+ * IDSEL = AD19 USB Host Controller (NEC uPD7210100A)
+ */
+
+/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
+static char se7780_irq_tab[4][16] __initdata = {
+ /* INTA */
+ { 65, 68, 67, 68, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+ /* INTB */
+ { 66, 65, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+ /* INTC */
+ { 67, 66, -1, 66, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+ /* INTD */
+ { 68, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+};
+
+int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
+{
+ return se7780_irq_tab[pin-1][slot];
+}
+
+static struct resource se7780_io_resource = {
+ .name = "SH7780_IO",
+ .start = 0x2000,
+ .end = 0x2000 + SH7780_PCI_IO_SIZE - 1,
+ .flags = IORESOURCE_IO
+};
+
+static struct resource se7780_mem_resource = {
+ .name = "SH7780_mem",
+ .start = SH7780_PCI_MEMORY_BASE,
+ .end = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM
+};
+
+extern struct pci_ops se7780_pci_ops;
+
+struct pci_channel board_pci_channels[] = {
+ { &sh4_pci_ops, &se7780_io_resource, &se7780_mem_resource, 0, 0xff },
+ { NULL, NULL, NULL, 0, 0 },
+};
+EXPORT_SYMBOL(board_pci_channels);
+
+static struct sh4_pci_address_map se7780_pci_map = {
+ .window0 = {
+ .base = SH7780_CS2_BASE_ADDR,
+ .size = 0x04000000,
+ },
+ .flags = SH4_PCIC_NO_RESET,
+};
+
+int __init pcibios_init_platform(void)
+{
+ printk("SH7780 PCI: Finished initialization of the PCI controller\n");
+
+ /*
+ * FPGA PCISEL register initialize
+ *
+ * CPU || SLOT1 | SLOT2 | S-ATA | USB
+ * -------------------------------------
+ * INTA || INTA | INTD | -- | INTB
+ * -------------------------------------
+ * INTB || INTB | INTA | -- | INTC
+ * -------------------------------------
+ * INTC || INTC | INTB | INTA | --
+ * -------------------------------------
+ * INTD || INTD | INTC | -- | INTA
+ * -------------------------------------
+ */
+ ctrl_outw(0x0013, FPGA_PCI_INTSEL1);
+ ctrl_outw(0xE402, FPGA_PCI_INTSEL2);
+
+ return sh7780_pcic_init(&se7780_pci_map);
+}