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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-01-08 04:26:12 +0300 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2009-01-21 18:43:49 -0600 |
| commit | fd6646c0b9ebe7e5afc4ae4c78097d9cd317a5e8 (patch) | |
| tree | d03ee8d986d8bf2413913788bb33df903dedf52e /cpu/mpc83xx/speed.c | |
| parent | 88ecf55cabd7aea28fe8093720e208f53ccfdcf5 (diff) | |
| download | u-boot-imx-fd6646c0b9ebe7e5afc4ae4c78097d9cd317a5e8.zip u-boot-imx-fd6646c0b9ebe7e5afc4ae4c78097d9cd317a5e8.tar.gz u-boot-imx-fd6646c0b9ebe7e5afc4ae4c78097d9cd317a5e8.tar.bz2 | |
mpc83xx: Add support for MPC83xx PCI-E controllers
This patch adds support for MPC83xx PCI-E controllers in Root Complex
mode.
The patch is based on Tony Li and Dave Liu work[1].
Though unlike the original patch, by default we don't register PCI-E
buses for use in U-Boot, we only configure the controllers for future
use in other OSes (Linux). This is done because we don't have enough
of spare BATs to map all the PCI-E regions.
To actually use PCI-E in U-Boot, users should explicitly define
CONFIG_83XX_GENERIC_PCIE_REGISTER_HOSES symbol in the board file. And
only then U-Boot will able to access PCI-E, but at the cost of disabled
address translation.
[1] http://lists.denx.de/pipermail/u-boot/2008-January/027630.html
Signed-off-by: Tony Li <tony.li@freescale.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'cpu/mpc83xx/speed.c')
| -rw-r--r-- | cpu/mpc83xx/speed.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c index bf9bf36..4230099 100644 --- a/cpu/mpc83xx/speed.c +++ b/cpu/mpc83xx/speed.c @@ -132,7 +132,7 @@ int get_clocks(void) u32 qe_clk; u32 brg_clk; #endif -#if defined(CONFIG_MPC837X) +#if defined(CONFIG_MPC837X) || defined(CONFIG_MPC831X) u32 pciexp1_clk; u32 pciexp2_clk; #endif @@ -328,7 +328,7 @@ int get_clocks(void) i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ #endif -#if defined(CONFIG_MPC837X) +#if defined(CONFIG_MPC837X) || defined(CONFIG_MPC831X) switch ((sccr & SCCR_PCIEXP1CM) >> SCCR_PCIEXP1CM_SHIFT) { case 0: pciexp1_clk = 0; |