Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c6ec08...
Commit: c6ec08e03dd06b8dfa3f6d938b0a89c6ed8475c9
Parent: 61586476cda599c64ab2b8f4f808d6a615a2fab2
Author: Remi Machet <rmachet@slac.stanford.edu>
AuthorDate: Wed May 21 06:50:10 2008 +1000
Committer: Paul Mackerras <paulus@samba.org>
CommitDate: Mon Jun 9 13:42:25 2008 +1000
powerpc: Boot code for the C2K
Support for the C2K cPCI Single Board Computer from GEFanuc
(PowerPC MPC7448 with a Marvell MV64460 chipset).
All features of the board are not supported yet, but the board
boots, flash works, all Ethernet ports are working and PCI
devices are all found (USB and SATA on PCI1 do not work yet).
Part 2 of 5: support for the board in arch/powerpc/boot.
Signed-off-by: Remi Machet <rmachet@slac.stanford.edu>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
arch/powerpc/boot/Makefile | 3 +-
arch/powerpc/boot/cuboot-c2k.c | 190 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 192 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index c3585be..e02fe36 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -63,7 +63,7 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c
ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
- fixed-head.S ep88xc.c ep405.c \
+ fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \
cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
virtex405-head.S redboot-83xx.c
@@ -264,6 +264,7 @@ image-$(CONFIG_KSI8560) += cuImage.ksi8560
# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
image-$(CONFIG_STORCENTER) += cuImage.storcenter
image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
+image-$(CONFIG_PPC_C2K) += cuImage.c2k
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
diff --git a/arch/powerpc/boot/cuboot-c2k.c b/arch/powerpc/boot/cuboot-c2k.c
new file mode 100644
index 0000000..e435949
--- /dev/null
+++ b/arch/powerpc/boot/cuboot-c2k.c
@@ -0,0 +1,190 @@
+/*
+ * GEFanuc C2K platform code.
+ *
+ * Author: Remi Machet <rmachet@slac.stanford.edu>
+ *
+ * Originated from prpmc2800.c
+ *
+ * 2008 (c) Stanford University
+ * 2007 (c) 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 version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "types.h"
+#include "stdio.h"
+#include "io.h"
+#include "ops.h"
+#include "elf.h"
+#include "gunzip_util.h"
+#include "mv64x60.h"
+#include "cuboot.h"
+#include "ppcboot.h"
+
+static u8 *bridge_base;
+
+static void c2k_bridge_setup(u32 mem_size)
+{
+ u32 i, v[30], enables, acc_bits;
+ u32 pci_base_hi, pci_base_lo, size, buf[2];
+ unsigned long cpu_base;
+ int rc;
+ void *devp, *mv64x60_devp;
+ u8 *bridge_pbase, is_coherent;
+ struct mv64x60_cpu2pci_win *tbl;
+ int bus;
+
+ bridge_pbase = mv64x60_get_bridge_pbase();
+ is_coherent = mv64x60_is_coherent();
+
+ if (is_coherent)
+ acc_bits = MV64x60_PCI_ACC_CNTL_SNOOP_WB
+ | MV64x60_PCI_ACC_CNTL_SWAP_NONE
+ | MV64x60_PCI_ACC_CNTL_MBURST_32_BYTES
+ | MV64x60_PCI_ACC_CNTL_RDSIZE_32_BYTES;
+ else
+ acc_bits = MV64x60_PCI_ACC_CNTL_SNOOP_NONE
+ | MV64x60_PCI_ACC_CNTL_SWAP_NONE
+ | MV64x60_PCI_ACC_CNTL_MBURST_128_BYTES
+ | MV64x60_PCI_ACC_CNTL_RDSIZE_256_BYTES;
+
+ mv64x60_config_ctlr_windows(bridge_base, bridge_pbase, is_coherent);
+ mv64x60_devp = find_node_by_compatible(NULL, "marvell,mv64360");
+ if (mv64x60_devp == NULL)
+ fatal("Error: Missing marvell,mv64360 device tree node\n\r");
+
+ enables = in_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE));
+ enables |= 0x007ffe00; /* Disable all cpu->pci windows */
+ out_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE), enables);
+
+ /* Get the cpu -> pci i/o & mem mappings from the device tree */
+ devp = NULL;
+ for (bus = 0; ; bus++) {
+ char name[] = "pci ";
+
+ name[strlen(name)-1] = bus+'0';
+
+ devp = find_node_by_alias(name);
+ if (devp == NULL)
+ break;
+
+ if (bus >= 2)
+ fatal("Error: Only 2 PCI controllers are supported at" \
+ " this time.\n");
+
+ mv64x60_config_pci_windows(bridge_base, bridge_pbase, bus, 0,
+ mem_size, acc_bits);
+
+ rc = getprop(devp, "ranges", v, sizeof(v));
+ if (rc == 0)
+ fatal("Error: Can't find marvell,mv64360-pci ranges"
+ " property\n\r");
+
+ /* Get the cpu -> pci i/o & mem mappings from the device tree */
+
+ for (i = 0; i < rc; i += 6) {
+ switch (v[i] & 0xff000000) {
+ case 0x01000000: /* PCI I/O Space */
+ tbl = mv64x60_cpu2pci_io;
+ break;
+ case 0x02000000: /* PCI MEM Space */
+ tbl = mv64x60_cpu2pci_mem;
+ break;
+ default:
+ continue;
+ }
+
+ pci_base_hi = v[i+1];
+ pci_base_lo = v[i+2];
+ cpu_base = v[i+3];
+ size = v[i+5];
+
+ buf[0] = cpu_base;
+ buf[1] = size;
+
+ if (!dt_xlate_addr(devp, buf, sizeof(buf), &cpu_base))
+ fatal("Error: Can't translate PCI address " \
+ "0x%x\n\r", (u32)cpu_base);
+
+ mv64x60_config_cpu2pci_window(bridge_base, bus,
+ pci_base_hi, pci_base_lo, cpu_base, size, tbl);
+ }
+
+ enables &= ~(3<<(9+bus*5)); /* Enable cpu->pci<bus> i/o,
+ cpu->pci<bus> mem0 */
+ out_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE),
+ enables);
+ };
+}
+
+static void c2k_fixups(void)
+{
+ u32 mem_size;
+
+ mem_size = mv64x60_get_mem_size(bridge_base);
+ c2k_bridge_setup(mem_size); /* Do necessary bridge setup */
+}
+
+#define MV64x60_MPP_CNTL_0 0xf000
+#define MV64x60_MPP_CNTL_2 0xf008
+#define MV64x60_GPP_IO_CNTL 0xf100
+#define MV64x60_GPP_LEVEL_CNTL 0xf110
+#define MV64x60_GPP_VALUE_SET 0xf118
+
+static void c2k_reset(void)
+{
+ u32 temp;
+
+ udelay(5000000);
+
+ if (bridge_base != 0) {
+ temp = in_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_0));
+ temp &= 0xFFFF0FFF;
+ out_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_0), temp);
+
+ temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL));
+ temp |= 0x00000004;
+ out_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL), temp);
+
+ temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL));
+ temp |= 0x00000004;
+ out_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL), temp);
+
+ temp = in_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_2));
+ temp &= 0xFFFF0FFF;
+ out_le32((u32 *)(bridge_base + MV64x60_MPP_CNTL_2), temp);
+
+ temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL));
+ temp |= 0x00080000;
+ out_le32((u32 *)(bridge_base + MV64x60_GPP_LEVEL_CNTL), temp);
+
+ temp = in_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL));
+ temp |= 0x00080000;
+ out_le32((u32 *)(bridge_base + MV64x60_GPP_IO_CNTL), temp);
+
+ out_le32((u32 *)(bridge_base + MV64x60_GPP_VALUE_SET),
+ 0x00080004);
+ }
+
+ for (;;);
+}
+
+static bd_t bd;
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ CUBOOT_INIT();
+
+ fdt_init(_dtb_start);
+
+ bridge_base = mv64x60_get_bridge_base();
+
+ platform_ops.fixups = c2k_fixups;
+ platform_ops.exit = c2k_reset;
+
+ if (serial_console_init() < 0)
+ exit();
+}
--
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
