summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms
diff options
context:
space:
mode:
authorRoy Zang <tie-fei.zang@freescale.com>2011-05-19 20:20:13 -0500
committerKumar Gala <galak@kernel.crashing.org>2011-06-22 21:44:56 -0500
commit2602a21231645f0923595a6ae2757222f6802e3f (patch)
tree90d1765e1d8960d2baf61f20b77647653b271061 /arch/powerpc/platforms
parent1325a684b553d4b5c41ae0482f8991b43f945746 (diff)
downloadblackbird-op-linux-2602a21231645f0923595a6ae2757222f6802e3f.tar.gz
blackbird-op-linux-2602a21231645f0923595a6ae2757222f6802e3f.zip
powerpc/85xx: Add basic P1023RDS board support
The P1023 processor is an e500v2 based SoC that utilizes the DPAA networking architecture. This adds basic board support for non-DPAA functionality (device tree, board file, etc). Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/85xx/Kconfig6
-rw-r--r--arch/powerpc/platforms/85xx/Makefile1
-rw-r--r--arch/powerpc/platforms/85xx/p1023_rds.c162
3 files changed, 169 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index b6976e1726e4..6db027561961 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -75,6 +75,12 @@ config P1022_DS
help
This option enables support for the Freescale P1022DS reference board.
+config P1023_RDS
+ bool "Freescale P1023 RDS"
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the P1023 RDS board
+
config SOCRATES
bool "Socrates"
select DEFAULT_UIMAGE
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index dd70db77d63e..5c08be5b6020 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_MPC85xx_DS) += mpc85xx_ds.o
obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o
obj-$(CONFIG_P1022_DS) += p1022_ds.o
+obj-$(CONFIG_P1023_RDS) += p1023_rds.o
obj-$(CONFIG_P3041_DS) += p3041_ds.o corenet_ds.o
obj-$(CONFIG_P4080_DS) += p4080_ds.o corenet_ds.o
obj-$(CONFIG_P5020_DS) += p5020_ds.o corenet_ds.o
diff --git a/arch/powerpc/platforms/85xx/p1023_rds.c b/arch/powerpc/platforms/85xx/p1023_rds.c
new file mode 100644
index 000000000000..835e0b335bfa
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/p1023_rds.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ *
+ * Author: Roy Zang <tie-fei.zang@freescale.com>
+ *
+ * Description:
+ * P1023 RDS Board Setup
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/fsl_devices.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
+
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+#ifdef CONFIG_SMP
+void __init mpc85xx_smp_init(void);
+#endif
+
+static void __init mpc85xx_rds_setup_arch(void)
+{
+ struct device_node *np;
+
+ if (ppc_md.progress)
+ ppc_md.progress("p1023_rds_setup_arch()", 0);
+
+ /* Map BCSR area */
+ np = of_find_node_by_name(NULL, "bcsr");
+ if (np != NULL) {
+ static u8 __iomem *bcsr_regs;
+
+ bcsr_regs = of_iomap(np, 0);
+ of_node_put(np);
+
+ if (!bcsr_regs) {
+ printk(KERN_ERR
+ "BCSR: Failed to map bcsr register space\n");
+ return;
+ } else {
+#define BCSR15_I2C_BUS0_SEG_CLR 0x07
+#define BCSR15_I2C_BUS0_SEG2 0x02
+/*
+ * Note: Accessing exclusively i2c devices.
+ *
+ * The i2c controller selects initially ID EEPROM in the u-boot;
+ * but if menu configuration selects RTC support in the kernel,
+ * the i2c controller switches to select RTC chip in the kernel.
+ */
+#ifdef CONFIG_RTC_CLASS
+ /* Enable RTC chip on the segment #2 of i2c */
+ clrbits8(&bcsr_regs[15], BCSR15_I2C_BUS0_SEG_CLR);
+ setbits8(&bcsr_regs[15], BCSR15_I2C_BUS0_SEG2);
+#endif
+
+ iounmap(bcsr_regs);
+ }
+ }
+
+#ifdef CONFIG_PCI
+ for_each_compatible_node(np, "pci", "fsl,p1023-pcie")
+ fsl_add_bridge(np, 0);
+#endif
+
+#ifdef CONFIG_SMP
+ mpc85xx_smp_init();
+#endif
+}
+
+static struct of_device_id p1023_ids[] = {
+ { .type = "soc", },
+ { .compatible = "soc", },
+ { .compatible = "simple-bus", },
+ {},
+};
+
+
+static int __init p1023_publish_devices(void)
+{
+ of_platform_bus_probe(NULL, p1023_ids, NULL);
+
+ return 0;
+}
+
+machine_device_initcall(p1023_rds, p1023_publish_devices);
+
+static void __init mpc85xx_rds_pic_init(void)
+{
+ struct mpic *mpic;
+ struct resource r;
+ struct device_node *np = NULL;
+
+ np = of_find_node_by_type(NULL, "open-pic");
+ if (!np) {
+ printk(KERN_ERR "Could not find open-pic node\n");
+ return;
+ }
+
+ if (of_address_to_resource(np, 0, &r)) {
+ printk(KERN_ERR "Failed to map mpic register space\n");
+ of_node_put(np);
+ return;
+ }
+
+ mpic = mpic_alloc(np, r.start,
+ MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN |
+ MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
+ 0, 256, " OpenPIC ");
+
+ BUG_ON(mpic == NULL);
+ of_node_put(np);
+
+ mpic_init(mpic);
+}
+
+static int __init p1023_rds_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ return of_flat_dt_is_compatible(root, "fsl,P1023RDS");
+
+}
+
+define_machine(p1023_rds) {
+ .name = "P1023 RDS",
+ .probe = p1023_rds_probe,
+ .setup_arch = mpc85xx_rds_setup_arch,
+ .init_IRQ = mpc85xx_rds_pic_init,
+ .get_irq = mpic_get_irq,
+ .restart = fsl_rstcr_restart,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+#ifdef CONFIG_PCI
+ .pcibios_fixup_bus = fsl_pcibios_fixup_bus,
+#endif
+};
+
OpenPOWER on IntegriCloud