mpc512x: Move common files to share them by several boards

We will soon see several new MPC521x based boards added.  This patch
moves files that are not board specific to a common directory so they
can be shared by all such ports.  It also splits off common IDE code
into a new file, cpu/mpc512x/ide.c .

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: John Rigby <jcrigby@gmail.com>

1 files changed, 213 insertions, 0 deletions

diff --git a/cpu/mpc512x/pci.c b/cpu/mpc512x/pci.c
new file mode 100644
index 0000000..806c428
--- /dev/null
+++ b/cpu/mpc512x/pci.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006, 2007. All rights reserved.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#include <asm/mmu.h>
+#include <asm/global_data.h>
+#include <pci.h>
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* System RAM mapped to PCI space */
+#define CONFIG_PCI_SYS_MEM_BUS	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_PCI_SYS_MEM_PHYS	CONFIG_SYS_SDRAM_BASE
+
+static struct pci_controller pci_hose;
+
+
+/**************************************************************************
+ * pci_init_board()
+ *
+ */
+void
+pci_init_board(void)
+{
+	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
+	volatile law512x_t *pci_law;
+	volatile pot512x_t *pci_pot;
+	volatile pcictrl512x_t *pci_ctrl;
+	volatile pciconf512x_t *pci_conf;
+	u16 reg16;
+	u32 reg32;
+	u32 dev;
+	struct pci_controller *hose;
+
+	/* Set PCI divider for 33MHz */
+	reg32 = immr->clk.scfr[0];
+	reg32 &= ~(SCFR1_PCI_DIV_MASK);
+	reg32 |= SCFR1_PCI_DIV << SCFR1_PCI_DIV_SHIFT;
+	immr->clk.scfr[0] = reg32;
+
+	pci_law = immr->sysconf.pcilaw;
+	pci_pot = immr->ios.pot;
+	pci_ctrl = &immr->pci_ctrl;
+	pci_conf = &immr->pci_conf;
+
+	hose = &pci_hose;
+
+	/*
+	 * Release PCI RST Output signal
+	 */
+	pci_ctrl->gcr = 0;
+	udelay(2000);
+	pci_ctrl->gcr = 1;
+
+	/* We need to wait at least a 1sec based on PCI specs */
+	{
+		int i;
+
+		for (i = 0; i < 1000; i++)
+			udelay(1000);
+	}
+
+	/*
+	 * Configure PCI Local Access Windows
+	 */
+	pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
+	pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_512M;
+
+	pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
+	pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_16M;
+
+	/*
+	 * Configure PCI Outbound Translation Windows
+	 */
+
+	/* PCI mem space - prefetch */
+	pci_pot[0].potar = (CONFIG_SYS_PCI_MEM_BASE >> 12) & POTAR_TA_MASK;
+	pci_pot[0].pobar = (CONFIG_SYS_PCI_MEM_PHYS >> 12) & POBAR_BA_MASK;
+	pci_pot[0].pocmr = POCMR_EN | POCMR_PRE | POCMR_CM_256M;
+
+	/* PCI IO space */
+	pci_pot[1].potar = (CONFIG_SYS_PCI_IO_BASE >> 12) & POTAR_TA_MASK;
+	pci_pot[1].pobar = (CONFIG_SYS_PCI_IO_PHYS >> 12) & POBAR_BA_MASK;
+	pci_pot[1].pocmr = POCMR_EN | POCMR_IO | POCMR_CM_16M;
+
+	/* PCI mmio - non-prefetch mem space */
+	pci_pot[2].potar = (CONFIG_SYS_PCI_MMIO_BASE >> 12) & POTAR_TA_MASK;
+	pci_pot[2].pobar = (CONFIG_SYS_PCI_MMIO_PHYS >> 12) & POBAR_BA_MASK;
+	pci_pot[2].pocmr = POCMR_EN | POCMR_CM_256M;
+
+	/*
+	 * Configure PCI Inbound Translation Windows
+	 */
+
+	/* we need RAM mapped to PCI space for the devices to
+	 * access main memory */
+	pci_ctrl[0].pitar1 = 0x0;
+	pci_ctrl[0].pibar1 = 0x0;
+	pci_ctrl[0].piebar1 = 0x0;
+	pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
+	    PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1);
+
+	hose->first_busno = 0;
+	hose->last_busno = 0xff;
+
+	/* PCI memory prefetch space */
+	pci_set_region(hose->regions + 0,
+		       CONFIG_SYS_PCI_MEM_BASE,
+		       CONFIG_SYS_PCI_MEM_PHYS,
+		       CONFIG_SYS_PCI_MEM_SIZE,
+		       PCI_REGION_MEM|PCI_REGION_PREFETCH);
+
+	/* PCI memory space */
+	pci_set_region(hose->regions + 1,
+		       CONFIG_SYS_PCI_MMIO_BASE,
+		       CONFIG_SYS_PCI_MMIO_PHYS,
+		       CONFIG_SYS_PCI_MMIO_SIZE,
+		       PCI_REGION_MEM);
+
+	/* PCI IO space */
+	pci_set_region(hose->regions + 2,
+		       CONFIG_SYS_PCI_IO_BASE,
+		       CONFIG_SYS_PCI_IO_PHYS,
+		       CONFIG_SYS_PCI_IO_SIZE,
+		       PCI_REGION_IO);
+
+	/* System memory space */
+	pci_set_region(hose->regions + 3,
+		       CONFIG_PCI_SYS_MEM_BUS,
+		       CONFIG_PCI_SYS_MEM_PHYS,
+		       gd->ram_size,
+		       PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
+
+	hose->region_count = 4;
+
+	pci_setup_indirect(hose,
+			   (CONFIG_SYS_IMMR + 0x8300),
+			   (CONFIG_SYS_IMMR + 0x8304));
+
+	pci_register_hose(hose);
+
+	/*
+	 * Write to Command register
+	 */
+	reg16 = 0xff;
+	dev = PCI_BDF(hose->first_busno, 0, 0);
+	pci_hose_read_config_word(hose, dev, PCI_COMMAND, &reg16);
+	reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+	pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
+
+	/*
+	 * Clear non-reserved bits in status register.
+	 */
+	pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
+	pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
+	pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+#ifdef CONFIG_PCI_SCAN_SHOW
+	printf("PCI:   Bus Dev VenId DevId Class Int\n");
+#endif
+	/*
+	 * Hose scan.
+	 */
+	hose->last_busno = pci_hose_scan(hose);
+}
+
+#if defined(CONFIG_OF_LIBFDT)
+void ft_pci_setup(void *blob, bd_t *bd)
+{
+	int nodeoffset;
+	int tmp[2];
+	const char *path;
+
+	nodeoffset = fdt_path_offset(blob, "/aliases");
+	if (nodeoffset >= 0) {
+		path = fdt_getprop(blob, nodeoffset, "pci", NULL);
+		if (path) {
+			tmp[0] = cpu_to_be32(pci_hose.first_busno);
+			tmp[1] = cpu_to_be32(pci_hose.last_busno);
+			do_fixup_by_path(blob, path, "bus-range",
+				&tmp, sizeof(tmp), 1);
+
+			tmp[0] = cpu_to_be32(gd->pci_clk);
+			do_fixup_by_path(blob, path, "clock-frequency",
+				&tmp, sizeof(tmp[0]), 1);
+		}
+	}
+}
+#endif /* CONFIG_OF_LIBFDT */