Author: uwe Date: 2009-05-09 16:26:04 +0200 (Sat, 09 May 2009) New Revision: 490
Modified: trunk/board_enable.c Log: Add support for EPoX EP-8K5A2 and separate out common VT823x board enable code. Signed-off-by: Luc Verhaegen <[email protected]> Acked-by: Uwe Hermann <[email protected]> Modified: trunk/board_enable.c =================================================================== --- trunk/board_enable.c 2009-05-09 07:32:30 UTC (rev 489) +++ trunk/board_enable.c 2009-05-09 14:26:04 UTC (rev 490) @@ -3,7 +3,7 @@ * * Copyright (C) 2005-2007 coresystems GmbH <[email protected]> * Copyright (C) 2006 Uwe Hermann <[email protected]> - * Copyright (C) 2007-2008 Luc Verhaegen <[email protected]> + * Copyright (C) 2007-2009 Luc Verhaegen <[email protected]> * Copyright (C) 2007 Carl-Daniel Hailfinger * * This program is free software; you can redistribute it and/or modify @@ -152,6 +152,65 @@ } /** + * w83627: Enable MEMW# and set ROM size to max. + */ +static void w836xx_memw_enable(uint16_t index) +{ + w836xx_ext_enter(index); + if (!(wbsio_read(index, 0x24) & 0x02)) { /* Flash ROM enabled? */ + /* Enable MEMW# and set ROM size select to max. (4M). */ + wbsio_mask(index, 0x24, 0x28, 0x28); + } + w836xx_ext_leave(index); +} + +/** + * Common routine for several VT823x based boards. + */ +static void vt823x_set_all_writes_to_lpc(struct pci_dev *dev) +{ + uint8_t val; + + /* All memory cycles, not just ROM ones, go to LPC. */ + val = pci_read_byte(dev, 0x59); + val &= ~0x80; + pci_write_byte(dev, 0x59, val); +} + +/** + * VT823x: Set one of the GPIO pins. + */ +static void vt823x_gpio_set(struct pci_dev *dev, uint8_t gpio, int raise) +{ + uint16_t base; + uint8_t val, bit; + + if ((gpio < 12) || (gpio > 15)) { + fprintf(stderr, "\nERROR: " + "VT823x GPIO%02d is not implemented.\n", gpio); + return; + } + + /* GPIO12-15 -> output */ + val = pci_read_byte(dev, 0xE4); + val |= 0x10; + pci_write_byte(dev, 0xE4, val); + + /* Now raise/drop the GPIO line itself. */ + bit = 0x01 << (gpio - 8); + + /* We need the I/O Base Address for this board's flash enable. */ + base = pci_read_word(dev, 0x88) & 0xff80; + + val = INB(base + 0x4D); + if (raise) + val |= bit; + else + val &= ~bit; + OUTB(val, base + 0x4D); +} + +/** * Suited for VIAs EPIA M and MII, and maybe other CLE266 based EPIAs. * * We don't need to do this when using coreboot, GPIO15 is never lowered there. @@ -159,8 +218,6 @@ static int board_via_epia_m(const char *name) { struct pci_dev *dev; - uint16_t base; - uint8_t val; dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */ if (!dev) { @@ -168,19 +225,9 @@ return -1; } - /* GPIO12-15 -> output */ - val = pci_read_byte(dev, 0xE4); - val |= 0x10; - pci_write_byte(dev, 0xE4, val); + /* GPIO15 is connected to write protect. */ + vt823x_gpio_set(dev, 15, 1); - /* Get Power Management IO address. */ - base = pci_read_word(dev, 0x88) & 0xFF80; - - /* Enable GPIO15 which is connected to write protect. */ - val = INB(base + 0x4D); - val |= 0x80; - OUTB(val, base + 0x4D); - return 0; } @@ -192,7 +239,6 @@ static int board_asus_a7v8x_mx(const char *name) { struct pci_dev *dev; - uint8_t val; dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */ if (!dev) @@ -202,29 +248,18 @@ return -1; } - /* This bit is marked reserved actually. */ - val = pci_read_byte(dev, 0x59); - val &= 0x7F; - pci_write_byte(dev, 0x59, val); + vt823x_set_all_writes_to_lpc(dev); + w836xx_memw_enable(0x2E); - /* Raise ROM MEMW# line on Winbond W83697 Super I/O. */ - w836xx_ext_enter(0x2E); - - if (!(wbsio_read(0x2E, 0x24) & 0x02)) /* Flash ROM enabled? */ - wbsio_mask(0x2E, 0x24, 0x08, 0x08); /* Enable MEMW#. */ - - w836xx_ext_leave(0x2E); - return 0; } /** - * Suited for VIAs EPIA SP. + * Suited for VIAs EPIA SP and EPIA CN. */ static int board_via_epia_sp(const char *name) { struct pci_dev *dev; - uint8_t val; dev = pci_dev_find(0x1106, 0x3227); /* VT8237R ISA bridge */ if (!dev) { @@ -232,15 +267,30 @@ return -1; } - /* All memory cycles, not just ROM ones, go to LPC */ - val = pci_read_byte(dev, 0x59); - val &= ~0x80; - pci_write_byte(dev, 0x59, val); + vt823x_set_all_writes_to_lpc(dev); return 0; } /** + * Suited for EPoX EP-8K5A2. + */ +static int board_epox_ep_8k5a2(const char *name) +{ + struct pci_dev *dev; + + dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */ + if (!dev) { + fprintf(stderr, "\nERROR: VT8235 ISA bridge not found.\n"); + return -1; + } + + w836xx_memw_enable(0x2E); + + return 0; +} + +/** * Suited for ASUS P5A. * * This is rather nasty code, but there's no way to do this cleanly. @@ -578,8 +628,6 @@ { struct pci_dev *dev; uint8_t val; - uint32_t val2; - uint16_t port; dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */ if (!dev) { @@ -591,24 +639,9 @@ val &= 0x0c; pci_write_byte(dev, 0x59, val); - /* We need the I/O Base Address for this board's flash enable. */ - port = pci_read_word(dev, 0x88) & 0xff80; + vt823x_gpio_set(dev, 12, 1); + w836xx_memw_enable(0x2E); - /* Starting at 'I/O Base + 0x4c' is the GPO Port Output Value. - * We must assert GPO12 for our enable, which is in 0x4d. - */ - val2 = INB(port + 0x4d); - val2 |= 0x10; - OUTB(val2, port + 0x4d); - - /* Raise ROM MEMW# line on Winbond W83697 Super I/O. */ - w836xx_ext_enter(0x2e); - if (!(wbsio_read(0x2e, 0x24) & 0x02)) { /* Flash ROM enabled? */ - /* Enable MEMW# and set ROM size select to max. (4M). */ - wbsio_mask(0x2e, 0x24, 0x28, 0x28); - } - w836xx_ext_leave(0x2e); - return 0; } @@ -667,6 +700,7 @@ {0x8086, 0x1a30, 0x1043, 0x8070, 0x8086, 0x244b, 0x1043, 0x8028, NULL, NULL, "ASUS", "P4B266", ich2_gpio22_raise}, {0x10B9, 0x1541, 0, 0, 0x10B9, 0x1533, 0, 0, "asus", "p5a", "ASUS", "P5A", board_asus_p5a}, {0x1106, 0x3149, 0x1565, 0x3206, 0x1106, 0x3344, 0x1565, 0x1202, NULL, NULL, "BioStar", "P4M80-M4", board_biostar_p4m80_m4}, + {0x1106, 0x3177, 0x1106, 0x3177, 0x1106, 0x3059, 0x1695, 0x3005, NULL, NULL, "EPoX", "EP-8K5A2", board_epox_ep_8k5a2}, {0x8086, 0x7110, 0, 0, 0x8086, 0x7190, 0, 0, "epox", "ep-bx3", "EPoX", "EP-BX3", board_epox_ep_bx3}, {0x1039, 0x0761, 0, 0, 0, 0, 0, 0, "gigabyte", "2761gxdk", "GIGABYTE", "GA-2761GXDK", it87xx_probe_spi_flash}, {0x1106, 0x3227, 0x1458, 0x5001, 0x10ec, 0x8139, 0x1458, 0xe000, NULL, NULL, "GIGABYTE", "GA-7VT600", board_biostar_p4m80_m4}, -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
