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| author | Ira W. Snyder <iws@ovro.caltech.edu> | 2008-08-22 11:00:15 -0700 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2008-08-25 17:04:36 -0500 |
| commit | 447ad5768abda669ac0e7f46fcdb62fbe828d637 (patch) | |
| tree | e13739d9abed2ecffa227752623164ed7cee790b /board/freescale/mpc8349emds | |
| parent | 4ff9aea9d6b5602683a920951ef896996438af62 (diff) | |
| download | u-boot-imx-447ad5768abda669ac0e7f46fcdb62fbe828d637.zip u-boot-imx-447ad5768abda669ac0e7f46fcdb62fbe828d637.tar.gz u-boot-imx-447ad5768abda669ac0e7f46fcdb62fbe828d637.tar.bz2 | |
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 <iws@ovro.caltech.edu>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board/freescale/mpc8349emds')
| -rw-r--r-- | board/freescale/mpc8349emds/mpc8349emds.c | 9 | ||||
| -rw-r--r-- | board/freescale/mpc8349emds/pci.c | 49 |
2 files changed, 58 insertions, 0 deletions
diff --git a/board/freescale/mpc8349emds/mpc8349emds.c b/board/freescale/mpc8349emds/mpc8349emds.c index 9a312c3..4c04f2c 100644 --- a/board/freescale/mpc8349emds/mpc8349emds.c +++ b/board/freescale/mpc8349emds/mpc8349emds.c @@ -165,6 +165,15 @@ int fixed_sdram(void) int checkboard (void) { + /* + * Warning: do not read the BCSR registers here + * + * There is a timing bug in the 8349E and 8349EA BCSR code + * version 1.2 (read from BCSR 11) that will cause the CFI + * flash initialization code to overwrite BCSR 0, disabling + * the serial ports and gigabit ethernet + */ + puts("Board: Freescale MPC8349EMDS\n"); return 0; } diff --git a/board/freescale/mpc8349emds/pci.c b/board/freescale/mpc8349emds/pci.c index a783beb..9c19e30 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 */ |