From 447ad5768abda669ac0e7f46fcdb62fbe828d637 Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Fri, 22 Aug 2008 11:00:15 -0700 Subject: MPC8349EMDS: Add PCI Agent (PCISLAVE) support Add the ability for the MPC8349EMDS to run in PCI Agent mode, acting as a PCI card rather than a host computer. Signed-off-by: Ira W. Snyder Signed-off-by: Kim Phillips --- board/freescale/mpc8349emds/pci.c | 49 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) (limited to 'board/freescale/mpc8349emds/pci.c') diff --git a/board/freescale/mpc8349emds/pci.c b/board/freescale/mpc8349emds/pci.c index a783bebad3..9c19e303f9 100644 --- a/board/freescale/mpc8349emds/pci.c +++ b/board/freescale/mpc8349emds/pci.c @@ -75,6 +75,7 @@ static struct pci_region pci2_regions[] = { }; #endif +#ifndef CONFIG_PCISLAVE void pib_init(void) { u8 val8, orig_i2c_bus; @@ -166,4 +167,52 @@ void pci_init_board(void) #endif } +#else +void pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_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 = CFG_PCI1_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G; + + pci_law[1].bar = CFG_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) */ + pci_ctrl->pitar0 = 0x0; + pci_ctrl->pibar0 = 0x0; + pci_ctrl->piwar0 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | PIWAR_IWS_1M; + + pci_ctrl->pitar1 = 0x0; + pci_ctrl->pibar1 = 0x0; + pci_ctrl->piebar1 = 0x0; + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | PIWAR_IWS_1M; + + pci_ctrl->pitar2 = 0x0; + pci_ctrl->pibar2 = 0x0; + pci_ctrl->piebar2 = 0x0; + pci_ctrl->piwar2 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | PIWAR_IWS_1M; + + /* Unlock the configuration bit */ + mpc83xx_pcislave_unlock(0); + printf("PCI: Agent mode enabled\n"); +} +#endif /* CONFIG_PCISLAVE */ + #endif /* CONFIG_PCI */ -- cgit v1.2.1