mirror of
https://review.coreboot.org/flashrom.git
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8bb2021d77
This patch attempts to resolve some programmer shutdown ordering issues by having the programmer init functions register shutdown callbacks explicitly wherever it makes most sense. Before, assumptions were made that could lead to the internal programmer's state changing before the external programmer could be shut down properly. Now, each programmer cleans up after itself and (hopefully) performs each operation in the correct order. As a side-effect, this patch gives us a better usage model for reverse operations such as rpci_* and rmmio_*. In the long-run, this should make reversing the initialization process easier to understand, less tedious, and less error-prone. In short, this patch does the following: - Registers a shutdown callback during initialization for each programmer. - Kills the .shutdown function pointer from programmer_entry struct. Also, make most shutdown functions static. - Adds a few minor clean-ups and corrections (e.g. missing physunmap() calls). TODO: Remove forward declaration of serprog_shutdown() (added to simplify diff) Corresponding to flashrom svn r1338. Signed-off-by: David Hendricks <dhendrix@google.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2009 Rudolf Marek <r.marek@assembler.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Datasheets can be found on http://www.siliconimage.com. Great thanks! */
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#include <stdlib.h>
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#include "flash.h"
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#include "programmer.h"
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#define PCI_VENDOR_ID_SII 0x1095
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#define SATASII_MEMMAP_SIZE 0x100
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uint8_t *sii_bar;
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static uint16_t id;
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const struct pcidev_status satas_sii[] = {
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{0x1095, 0x0680, OK, "Silicon Image", "PCI0680 Ultra ATA-133 Host Ctrl"},
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{0x1095, 0x3112, OK, "Silicon Image", "SiI 3112 [SATALink/SATARaid] SATA Ctrl"},
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{0x1095, 0x3114, OK, "Silicon Image", "SiI 3114 [SATALink/SATARaid] SATA Ctrl"},
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{0x1095, 0x3124, OK, "Silicon Image", "SiI 3124 PCI-X SATA Ctrl"},
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{0x1095, 0x3132, OK, "Silicon Image", "SiI 3132 SATA Raid II Ctrl"},
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{0x1095, 0x3512, OK, "Silicon Image", "SiI 3512 [SATALink/SATARaid] SATA Ctrl"},
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{},
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};
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static int satasii_shutdown(void *data)
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{
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physunmap(sii_bar, SATASII_MEMMAP_SIZE);
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pci_cleanup(pacc);
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release_io_perms();
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return 0;
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}
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int satasii_init(void)
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{
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uint32_t addr;
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uint16_t reg_offset;
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get_io_perms();
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pcidev_init(PCI_BASE_ADDRESS_0, satas_sii);
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id = pcidev_dev->device_id;
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if ((id == 0x3132) || (id == 0x3124)) {
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addr = pci_read_long(pcidev_dev, PCI_BASE_ADDRESS_0) & ~0x07;
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reg_offset = 0x70;
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} else {
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addr = pci_read_long(pcidev_dev, PCI_BASE_ADDRESS_5) & ~0x07;
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reg_offset = 0x50;
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}
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sii_bar = physmap("SATA SIL registers", addr, SATASII_MEMMAP_SIZE) +
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reg_offset;
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/* Check if ROM cycle are OK. */
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if ((id != 0x0680) && (!(pci_mmio_readl(sii_bar) & (1 << 26))))
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msg_pinfo("Warning: Flash seems unconnected.\n");
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buses_supported = CHIP_BUSTYPE_PARALLEL;
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if (register_shutdown(satasii_shutdown, NULL))
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return 1;
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return 0;
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}
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void satasii_chip_writeb(uint8_t val, chipaddr addr)
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{
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uint32_t ctrl_reg, data_reg;
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while ((ctrl_reg = pci_mmio_readl(sii_bar)) & (1 << 25)) ;
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/* Mask out unused/reserved bits, set writes and start transaction. */
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ctrl_reg &= 0xfcf80000;
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ctrl_reg |= (1 << 25) | (0 << 24) | ((uint32_t) addr & 0x7ffff);
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data_reg = (pci_mmio_readl((sii_bar + 4)) & ~0xff) | val;
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pci_mmio_writel(data_reg, (sii_bar + 4));
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pci_mmio_writel(ctrl_reg, sii_bar);
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while (pci_mmio_readl(sii_bar) & (1 << 25)) ;
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}
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uint8_t satasii_chip_readb(const chipaddr addr)
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{
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uint32_t ctrl_reg;
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while ((ctrl_reg = pci_mmio_readl(sii_bar)) & (1 << 25)) ;
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/* Mask out unused/reserved bits, set reads and start transaction. */
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ctrl_reg &= 0xfcf80000;
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ctrl_reg |= (1 << 25) | (1 << 24) | ((uint32_t) addr & 0x7ffff);
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pci_mmio_writel(ctrl_reg, sii_bar);
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while (pci_mmio_readl(sii_bar) & (1 << 25)) ;
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return (pci_mmio_readl(sii_bar + 4)) & 0xff;
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}
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