diff options
Diffstat (limited to 'u-boot/board/freescale/common/pq-mds-pib.c')
| -rw-r--r-- | u-boot/board/freescale/common/pq-mds-pib.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/u-boot/board/freescale/common/pq-mds-pib.c b/u-boot/board/freescale/common/pq-mds-pib.c new file mode 100644 index 0000000..5f7a67d --- /dev/null +++ b/u-boot/board/freescale/common/pq-mds-pib.c @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * + * Tony Li <tony.li@freescale.com> + * + * 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 <common.h> +#include <i2c.h> +#include <asm/io.h> + +#include "pq-mds-pib.h" + +int pib_init(void) +{ + u8 val8; + u8 orig_i2c_bus; + + /* Switch temporarily to I2C bus #2 */ + orig_i2c_bus = i2c_get_bus_num(); + i2c_set_bus_num(1); + + val8 = 0; +#if defined(CONFIG_PCI) && !defined(CONFIG_PCISLAVE) + /* Assign PIB PMC slot to desired PCI bus */ + i2c_write(0x23, 0x6, 1, &val8, 1); + i2c_write(0x23, 0x7, 1, &val8, 1); + val8 = 0xff; + i2c_write(0x23, 0x2, 1, &val8, 1); + i2c_write(0x23, 0x3, 1, &val8, 1); + + val8 = 0; + i2c_write(0x26, 0x6, 1, &val8, 1); + val8 = 0x34; + i2c_write(0x26, 0x7, 1, &val8, 1); +#if defined(CONFIG_MPC832XEMDS) + val8 = 0xf9; /* PMC2, PMC3 slot to PCI bus */ +#else + val8 = 0xf3; /* PMC1, PMC2, PMC3 slot to PCI bus */ +#endif + i2c_write(0x26, 0x2, 1, &val8, 1); + val8 = 0xff; + i2c_write(0x26, 0x3, 1, &val8, 1); + + val8 = 0; + i2c_write(0x27, 0x6, 1, &val8, 1); + i2c_write(0x27, 0x7, 1, &val8, 1); + val8 = 0xff; + i2c_write(0x27, 0x2, 1, &val8, 1); + val8 = 0xef; + i2c_write(0x27, 0x3, 1, &val8, 1); + + eieio(); + +#if defined(CONFIG_MPC832XEMDS) + printf("PCI 32bit bus on PMC2 &PMC3\n"); +#else + printf("PCI 32bit bus on PMC1 & PMC2 &PMC3\n"); +#endif +#endif + +#if defined(CONFIG_PQ_MDS_PIB_ATM) +#if defined(CONFIG_MPC8360EMDS) || defined(CONFIG_MPC8569MDS) + val8 = 0; + i2c_write(0x20, 0x6, 1, &val8, 1); + i2c_write(0x20, 0x7, 1, &val8, 1); + + val8 = 0xdf; + i2c_write(0x20, 0x2, 1, &val8, 1); + val8 = 0xf7; + i2c_write(0x20, 0x3, 1, &val8, 1); + + eieio(); + + printf("QOC3 ATM card on PMC0\n"); +#elif defined(CONFIG_MPC832XEMDS) + val8 = 0; + i2c_write(0x26, 0x7, 1, &val8, 1); + val8 = 0xf7; + i2c_write(0x26, 0x3, 1, &val8, 1); + + val8 = 0; + i2c_write(0x21, 0x6, 1, &val8, 1); + i2c_write(0x21, 0x7, 1, &val8, 1); + + val8 = 0xdf; + i2c_write(0x21, 0x2, 1, &val8, 1); + val8 = 0xef; + i2c_write(0x21, 0x3, 1, &val8, 1); + + eieio(); + + printf("QOC3 ATM card on PMC1\n"); +#endif +#endif + /* Reset to original I2C bus */ + i2c_set_bus_num(orig_i2c_bus); + return 0; +} |