From 19580e660cc8da49f16536a8bd78c047c7bc12e5 Mon Sep 17 00:00:00 2001 From: Dave Liu Date: Tue, 18 Sep 2007 12:37:57 +0800 Subject: mpc83xx: Add the support of MPC837xEMDS board The MPC837xEMDS board support: * DDR2 400MHz hardcoded and SPD init * Local bus NOR Flash * I2C, UART, MII and RTC * eTSEC RGMII * PCI host Signed-off-by: Dave Liu --- board/freescale/mpc837xemds/pci.c | 65 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 board/freescale/mpc837xemds/pci.c (limited to 'board/freescale/mpc837xemds/pci.c') diff --git a/board/freescale/mpc837xemds/pci.c b/board/freescale/mpc837xemds/pci.c new file mode 100644 index 0000000000..ab909790e5 --- /dev/null +++ b/board/freescale/mpc837xemds/pci.c @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include + +#if defined(CONFIG_PCI) +static struct pci_region pci_regions[] = { + { + bus_start: CFG_PCI_MEM_BASE, + phys_start: CFG_PCI_MEM_PHYS, + size: CFG_PCI_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CFG_PCI_MMIO_BASE, + phys_start: CFG_PCI_MMIO_PHYS, + size: CFG_PCI_MMIO_SIZE, + flags: PCI_REGION_MEM + }, + { + bus_start: CFG_PCI_IO_BASE, + phys_start: CFG_PCI_IO_PHYS, + size: CFG_PCI_IO_SIZE, + flags: PCI_REGION_IO + } +}; + +void pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_IMMR; + volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; + volatile law83xx_t *pci_law = immr->sysconf.pcilaw; + struct pci_region *reg[] = { pci_regions }; + + /* Enable all 5 PCI_CLK_OUTPUTS */ + clk->occr |= 0xf8000000; + udelay(2000); + + /* Configure PCI Local Access Windows */ + pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; + + pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR; + pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; + + udelay(2000); + + mpc83xx_pci_init(1, reg, 0); +} +#endif /* CONFIG_PCI */ -- cgit v1.2.1