[U-Boot] [PATCH] ppc4xx: Make pll_write global

[U-Boot] [PATCH] ppc4xx: Make pll_write global

[Matthias Fuchs]

This patch makes pll_write on PPC405EP boards
global and callable from C code.

pll_write can be used to dynamically modify the PLB:PCI divider
as it is required for 33/66 MHz pci adapters based on the 405EP.

board_early_init_f() is a good place to do that (check M66EN signal
and call pll_write() when it is required).

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
---
 cpu/ppc4xx/start.S |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index ac96fc2..582c781 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -2021,6 +2021,7 @@ pci_wait:
 ! Output r3 = none
 !-----------------------------------------------------------------------------
 */
+	.globl	pll_write
 pll_write:
 	mfdcr  r5, CPC0_UCR
 	andis. r5,r5,0xFFFF
-- 
1.6.1

[U-Boot] [PATCH] ppc4xx: Make pll_write global

[Stefan Roese]

On Monday 06 July 2009 16:27:33 Matthias Fuchs wrote:
> This patch makes pll_write on PPC405EP boards
> global and callable from C code.
>
> pll_write can be used to dynamically modify the PLB:PCI divider
> as it is required for 33/66 MHz pci adapters based on the 405EP.
>
> board_early_init_f() is a good place to do that (check M66EN signal
> and call pll_write() when it is required).

Applied to ppc4xx. Thanks.

Best regards,
Stefan

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