Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53053 Commits
3 Branches
0 Tags
148 MiB
Tag: Branch: Tree: e1a8dfde5a
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'e1a8dfde5a'
${ noResults }
u-boot/board/imgtec/malta/lowlevel_init.S

232 lines
6.2 KiB
Raw Normal View History Unescape

SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
7 years ago
/* SPDX-License-Identifier: GPL-2.0 */
MIPS: qemu-malta: add support for emulated MIPS Malta board Add minimal support for the MIPS Malta CoreLV board emulated by Qemu. The only supported peripherial is the UART. This is enough to boot U-Boot to the command prompt both in little and big endian mode. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
/*
* Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
*/
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
#include <config.h>
#include <gt64120.h>
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
#include <msc01.h>
#include <pci.h>
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
#include <asm/addrspace.h>
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
#include <asm/asm.h>
MIPS: qemu-malta: add support for emulated MIPS Malta board Add minimal support for the MIPS Malta CoreLV board emulated by Qemu. The only supported peripherial is the UART. This is enough to boot U-Boot to the command prompt both in little and big endian mode. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
#include <asm/regdef.h>
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
#include <asm/malta.h>
malta: disable L2 caches Malta boards may be used with cores which support L2 caches, however U-boot does not yet support L2 cache for MIPS. Thus for the moment we'll disable L2 caches by setting the L2B bit in Config2. This is specific to MTI/Imagination MIPS cores which is why this is done for the Malta board rather than generically. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
#include <asm/mipsregs.h>
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
#ifdef CONFIG_SYS_BIG_ENDIAN
#define CPU_TO_GT32(_x) ((_x))
#else
#define CPU_TO_GT32(_x) ( \
(((_x) & 0xff) << 24) | (((_x) & 0xff00) << 8) | \
(((_x) & 0xff0000) >> 8) | (((_x) & 0xff000000) >> 24))
#endif
MIPS: qemu-malta: add support for emulated MIPS Malta board Add minimal support for the MIPS Malta CoreLV board emulated by Qemu. The only supported peripherial is the UART. This is enough to boot U-Boot to the command prompt both in little and big endian mode. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
.text
.set noreorder
.globl lowlevel_init
lowlevel_init:
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
/* detect the core card */
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
PTR_LI t0, CKSEG1ADDR(MALTA_REVISION)
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
lw t0, 0(t0)
srl t0, t0, MALTA_REVISION_CORID_SHF
andi t0, t0, (MALTA_REVISION_CORID_MSK >> \
MALTA_REVISION_CORID_SHF)
/* core cards using the gt64120 system controller */
li t1, MALTA_REVISION_CORID_CORE_LV
beq t0, t1, _gt64120
/* core cards using the MSC01 system controller */
li t1, MALTA_REVISION_CORID_CORE_FPGA6
beq t0, t1, _msc01
nop
/* unknown system controller */
b .
nop
MIPS: qemu-malta: add support for emulated MIPS Malta board Add minimal support for the MIPS Malta CoreLV board emulated by Qemu. The only supported peripherial is the UART. This is enough to boot U-Boot to the command prompt both in little and big endian mode. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
/*
* Load BAR registers of GT64120 as done by YAMON
*
* based on a patch sent by Antony Pavlov <antonynpavlov@gmail.com>
* to the barebox mailing list.
* The subject of the original patch:
* 'MIPS: qemu-malta: add YAMON-style GT64120 memory map'
* URL:
* http://www.mail-archive.com/barebox@lists.infradead.org/msg06128.html
*
* based on write_bootloader() in qemu.git/hw/mips_malta.c
* see GT64120 manual and qemu.git/hw/gt64xxx.c for details
*/
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
_gt64120:
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
/* move GT64120 registers from 0x14000000 to 0x1be00000 */
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
PTR_LI t1, CKSEG1ADDR(GT_DEF_BASE)
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
li t0, CPU_TO_GT32(0xdf000000)
sw t0, GT_ISD_OFS(t1)
/* setup MEM-to-PCI0 mapping */
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
PTR_LI t1, CKSEG1ADDR(MALTA_GT_BASE)
MIPS: qemu-malta: setup GT64120 registers as done by YAMON Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
/* setup PCI0 io window to 0x18000000-0x181fffff */
li t0, CPU_TO_GT32(0xc0000000)
sw t0, GT_PCI0IOLD_OFS(t1)
li t0, CPU_TO_GT32(0x40000000)
sw t0, GT_PCI0IOHD_OFS(t1)
/* setup PCI0 mem windows */
li t0, CPU_TO_GT32(0x80000000)
sw t0, GT_PCI0M0LD_OFS(t1)
li t0, CPU_TO_GT32(0x3f000000)
sw t0, GT_PCI0M0HD_OFS(t1)
li t0, CPU_TO_GT32(0xc1000000)
sw t0, GT_PCI0M1LD_OFS(t1)
li t0, CPU_TO_GT32(0x5e000000)
sw t0, GT_PCI0M1HD_OFS(t1)
MIPS: qemu-malta: add support for emulated MIPS Malta board Add minimal support for the MIPS Malta CoreLV board emulated by Qemu. The only supported peripherial is the UART. This is enough to boot U-Boot to the command prompt both in little and big endian mode. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
12 years ago
jr ra
nop
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
/*
*
*/
_msc01:
/* setup peripheral bus controller clock divide */
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
PTR_LI t0, CKSEG1ADDR(MALTA_MSC01_PBC_BASE)
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
li t1, 0x1 << MSC01_PBC_CLKCFG_SHF
sw t1, MSC01_PBC_CLKCFG_OFS(t0)
/* tweak peripheral bus controller timings */
li t1, (0x1 << MSC01_PBC_CS0TIM_CDT_SHF) | \
(0x1 << MSC01_PBC_CS0TIM_CAT_SHF)
sw t1, MSC01_PBC_CS0TIM_OFS(t0)
li t1, (0x0 << MSC01_PBC_CS0RW_RDT_SHF) | \
(0x2 << MSC01_PBC_CS0RW_RAT_SHF) | \
(0x0 << MSC01_PBC_CS0RW_WDT_SHF) | \
(0x2 << MSC01_PBC_CS0RW_WAT_SHF)
sw t1, MSC01_PBC_CS0RW_OFS(t0)
lw t1, MSC01_PBC_CS0CFG_OFS(t0)
li t2, MSC01_PBC_CS0CFG_DTYP_MSK
and t1, t2
ori t1, (0x0 << MSC01_PBC_CS0CFG_ADM_SHF) | \
(0x3 << MSC01_PBC_CS0CFG_WSIDLE_SHF) | \
(0x10 << MSC01_PBC_CS0CFG_WS_SHF)
sw t1, MSC01_PBC_CS0CFG_OFS(t0)
/* setup basic address decode */
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
PTR_LI t0, CKSEG1ADDR(MALTA_MSC01_BIU_BASE)
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
li t1, 0x0
li t2, -CONFIG_SYS_MEM_SIZE
sw t1, MSC01_BIU_MCBAS1L_OFS(t0)
sw t2, MSC01_BIU_MCMSK1L_OFS(t0)
sw t1, MSC01_BIU_MCBAS2L_OFS(t0)
sw t2, MSC01_BIU_MCMSK2L_OFS(t0)
/* initialise IP1 - unused */
li t1, MALTA_MSC01_IP1_BASE
li t2, -MALTA_MSC01_IP1_SIZE
sw t1, MSC01_BIU_IP1BAS1L_OFS(t0)
sw t2, MSC01_BIU_IP1MSK1L_OFS(t0)
sw t1, MSC01_BIU_IP1BAS2L_OFS(t0)
sw t2, MSC01_BIU_IP1MSK2L_OFS(t0)
/* initialise IP2 - PCI */
li t1, MALTA_MSC01_IP2_BASE1
li t2, -MALTA_MSC01_IP2_SIZE1
sw t1, MSC01_BIU_IP2BAS1L_OFS(t0)
sw t2, MSC01_BIU_IP2MSK1L_OFS(t0)
li t1, MALTA_MSC01_IP2_BASE2
li t2, -MALTA_MSC01_IP2_SIZE2
sw t1, MSC01_BIU_IP2BAS2L_OFS(t0)
sw t2, MSC01_BIU_IP2MSK2L_OFS(t0)
/* initialise IP3 - peripheral bus controller */
li t1, MALTA_MSC01_IP3_BASE
li t2, -MALTA_MSC01_IP3_SIZE
sw t1, MSC01_BIU_IP3BAS1L_OFS(t0)
sw t2, MSC01_BIU_IP3MSK1L_OFS(t0)
sw t1, MSC01_BIU_IP3BAS2L_OFS(t0)
sw t2, MSC01_BIU_IP3MSK2L_OFS(t0)
/* setup PCI memory */
malta: Allow MIPS64 builds Both real Malta boards & emulators that mimic Malta (eg. QEMU) can support MIPS64 CPUs. Allow MIPS64 builds of U-Boot for such boards, which enables the user to make use of the whole 64 bit address space. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
9 years ago
PTR_LI t0, CKSEG1ADDR(MALTA_MSC01_PCI_BASE)
malta: support for coreFPGA6 boards This patch adds support for running on Malta boards using coreFPGA6 core cards, including support for the msc01 system controller used with them. The system controller is detected at runtime allowing one U-boot binary to run on a Malta with either. Due to the PCI I/O base differing between Maltas using gt64120 & msc01 system controllers, the UART setup is modified slightly. A second UART is added so that there is one pointing at the correct address for each system controller. The Malta board then defines its own default_serial_console function to select the correct one at runtime. The incorrect UART will simply not function. Tested on: - A coreFPGA6 Malta running interAptiv and proAptiv bitstreams, both with and without an L2 cache. - QEMU. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
11 years ago
li t1, MALTA_MSC01_PCIMEM_BASE
li t2, (-MALTA_MSC01_PCIMEM_SIZE) & MSC01_PCI_SC2PMMSKL_MSK_MSK
li t3, MALTA_MSC01_PCIMEM_MAP
sw t1, MSC01_PCI_SC2PMBASL_OFS(t0)
sw t2, MSC01_PCI_SC2PMMSKL_OFS(t0)
sw t3, MSC01_PCI_SC2PMMAPL_OFS(t0)
/* setup PCI I/O */
li t1, MALTA_MSC01_PCIIO_BASE
li t2, (-MALTA_MSC01_PCIIO_SIZE) & MSC01_PCI_SC2PIOMSKL_MSK_MSK
li t3, MALTA_MSC01_PCIIO_MAP
sw t1, MSC01_PCI_SC2PIOBASL_OFS(t0)
sw t2, MSC01_PCI_SC2PIOMSKL_OFS(t0)
sw t3, MSC01_PCI_SC2PIOMAPL_OFS(t0)
/* setup PCI_BAR0 memory window */
li t1, -CONFIG_SYS_MEM_SIZE
sw t1, MSC01_PCI_BAR0_OFS(t0)
/* setup PCI to SysCon/CPU translation */
sw t1, MSC01_PCI_P2SCMSKL_OFS(t0)
sw zero, MSC01_PCI_P2SCMAPL_OFS(t0)
/* setup PCI vendor & device IDs */
li t1, (PCI_VENDOR_ID_MIPS << MSC01_PCI_HEAD0_VENDORID_SHF) | \
(PCI_DEVICE_ID_MIPS_MSC01 << MSC01_PCI_HEAD0_DEVICEID_SHF)
sw t1, MSC01_PCI_HEAD0_OFS(t0)
/* setup PCI subsystem vendor & device IDs */
sw t1, MSC01_PCI_HEAD11_OFS(t0)
/* setup PCI class, revision */
li t1, (PCI_CLASS_BRIDGE_HOST << MSC01_PCI_HEAD2_CLASS_SHF) | \
(0x1 << MSC01_PCI_HEAD2_REV_SHF)
sw t1, MSC01_PCI_HEAD2_OFS(t0)
/* ensure a sane setup */
sw zero, MSC01_PCI_HEAD3_OFS(t0)
sw zero, MSC01_PCI_HEAD4_OFS(t0)
sw zero, MSC01_PCI_HEAD5_OFS(t0)
sw zero, MSC01_PCI_HEAD6_OFS(t0)
sw zero, MSC01_PCI_HEAD7_OFS(t0)
sw zero, MSC01_PCI_HEAD8_OFS(t0)
sw zero, MSC01_PCI_HEAD9_OFS(t0)
sw zero, MSC01_PCI_HEAD10_OFS(t0)
sw zero, MSC01_PCI_HEAD12_OFS(t0)
sw zero, MSC01_PCI_HEAD13_OFS(t0)
sw zero, MSC01_PCI_HEAD14_OFS(t0)
sw zero, MSC01_PCI_HEAD15_OFS(t0)
/* setup PCI command register */
li t1, (PCI_COMMAND_FAST_BACK | \
PCI_COMMAND_SERR | \
PCI_COMMAND_PARITY | \
PCI_COMMAND_MASTER | \
PCI_COMMAND_MEMORY)
sw t1, MSC01_PCI_HEAD1_OFS(t0)
/* setup PCI byte swapping */
#ifdef CONFIG_SYS_BIG_ENDIAN
li t1, (0x1 << MSC01_PCI_SWAP_BAR0_BSWAP_SHF) | \
(0x1 << MSC01_PCI_SWAP_IO_BSWAP_SHF)
sw t1, MSC01_PCI_SWAP_OFS(t0)
#else
sw zero, MSC01_PCI_SWAP_OFS(t0)
#endif
/* enable PCI host configuration cycles */
lw t1, MSC01_PCI_CFG_OFS(t0)
li t2, MSC01_PCI_CFG_RA_MSK | \
MSC01_PCI_CFG_G_MSK | \
MSC01_PCI_CFG_EN_MSK
or t1, t1, t2
sw t1, MSC01_PCI_CFG_OFS(t0)
jr ra
nop