[U-Boot] [PATCH] MPC8349EMDS: do not setup unused PCI clock outputs in PCI agent mode

Ira Snyder
2009-01-12T21:33:17Z

When running in PCI agent mode, the PCI_CLK_OUT signals are not used, so do
not enable them. See the MPC8349EA Reference Manual, Section 4.4.2
"Clocking in PCI Agent Mode".

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
---
board/freescale/mpc8349emds/pci.c | 7 -------
1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/board/freescale/mpc8349emds/pci.c b/board/freescale/mpc8349emds/pci.c
index ad7bf5d..af0b1da 100644
--- a/board/freescale/mpc8349emds/pci.c
+++ b/board/freescale/mpc8349emds/pci.c
@@ -171,15 +171,10 @@ void pci_init_board(void)
void pci_init_board(void)
{
volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
- volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
volatile pcictrl83xx_t *pci_ctrl = &immr->pci_ctrl[0];
struct pci_region *reg[] = { pci1_regions };

- /* Enable all 8 PCI_CLK_OUTPUTS */
- clk->occr = 0xff000000;
- udelay(2000);
-
/* Configure PCI Local Access Windows */
pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
@@ -187,8 +182,6 @@ void pci_init_board(void)
pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M;

- udelay(2000);
-
mpc83xx_pci_init(1, reg, 0);

/* Configure PCI Inbound Translation Windows (3 1MB windows) */
--
1.5.4.3