summaryrefslogtreecommitdiff
path: root/board/xes/common/fsl_85xx_pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/xes/common/fsl_85xx_pci.c')
-rw-r--r--board/xes/common/fsl_85xx_pci.c379
1 files changed, 379 insertions, 0 deletions
diff --git a/board/xes/common/fsl_85xx_pci.c b/board/xes/common/fsl_85xx_pci.c
new file mode 100644
index 0000000..9673a02
--- /dev/null
+++ b/board/xes/common/fsl_85xx_pci.c
@@ -0,0 +1,379 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ * Copyright 2007-2008 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/immap_85xx.h>
+#include <asm/immap_fsl_pci.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+
+extern int fsl_pci_setup_inbound_windows(struct pci_region *r);
+extern void fsl_pci_config_unlock(struct pci_controller *hose);
+extern void fsl_pci_init(struct pci_controller *hose);
+
+int first_free_busno = 0;
+
+#ifdef CONFIG_PCI1
+static struct pci_controller pci1_hose;
+#endif
+#ifdef CONFIG_PCIE1
+static struct pci_controller pcie1_hose;
+#endif
+#ifdef CONFIG_PCIE2
+static struct pci_controller pcie2_hose;
+#endif
+#ifdef CONFIG_PCIE3
+static struct pci_controller pcie3_hose;
+#endif
+
+#ifdef CONFIG_MPC8572
+/* Correlate host/agent POR bits to usable info. Table 4-14 */
+struct host_agent_cfg_t {
+ uchar pcie_root[3];
+ uchar rio_host;
+} host_agent_cfg[8] = {
+ {{0, 0, 0}, 0},
+ {{0, 1, 1}, 1},
+ {{1, 0, 1}, 0},
+ {{1, 1, 0}, 1},
+ {{0, 0, 1}, 0},
+ {{0, 1, 0}, 1},
+ {{1, 0, 0}, 0},
+ {{1, 1, 1}, 1}
+};
+
+/* Correlate port width POR bits to usable info. Table 4-15 */
+struct io_port_cfg_t {
+ uchar pcie_width[3];
+ uchar rio_width;
+} io_port_cfg[16] = {
+ {{0, 0, 0}, 0},
+ {{0, 0, 0}, 0},
+ {{4, 0, 0}, 0},
+ {{4, 4, 0}, 0},
+ {{0, 0, 0}, 0},
+ {{0, 0, 0}, 0},
+ {{0, 0, 0}, 4},
+ {{4, 2, 2}, 0},
+ {{0, 0, 0}, 0},
+ {{0, 0, 0}, 0},
+ {{0, 0, 0}, 0},
+ {{4, 0, 0}, 4},
+ {{4, 0, 0}, 4},
+ {{0, 0, 0}, 4},
+ {{0, 0, 0}, 4},
+ {{8, 0, 0}, 0},
+};
+#elif defined CONFIG_MPC8548
+/* Correlate host/agent POR bits to usable info. Table 4-12 */
+struct host_agent_cfg_t {
+ uchar pci_host[2];
+ uchar pcie_root[1];
+ uchar rio_host;
+} host_agent_cfg[8] = {
+ {{1, 1}, {0}, 0},
+ {{1, 1}, {1}, 0},
+ {{1, 1}, {0}, 1},
+ {{0, 0}, {0}, 0}, /* reserved */
+ {{0, 1}, {1}, 0},
+ {{1, 1}, {1}, 0},
+ {{0, 1}, {1}, 1},
+ {{1, 1}, {1}, 1}
+};
+
+/* Correlate port width POR bits to usable info. Table 4-13 */
+struct io_port_cfg_t {
+ uchar pcie_width[1];
+ uchar rio_width;
+} io_port_cfg[8] = {
+ {{0}, 0},
+ {{0}, 0},
+ {{0}, 0},
+ {{4}, 4},
+ {{4}, 4},
+ {{0}, 4},
+ {{0}, 4},
+ {{8}, 0},
+};
+#endif
+
+void pci_init_board(void)
+{
+ struct pci_controller *hose;
+ volatile ccsr_fsl_pci_t *pci;
+ int width;
+ int host;
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+ uint devdisr = gur->devdisr;
+ uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
+ uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
+ struct pci_region *r;
+
+#ifdef CONFIG_PCI1
+ uint pci_spd_norm = (gur->pordevsr & MPC85xx_PORDEVSR_PCI1_SPD);
+ uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
+ uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
+ uint pcix = gur->pordevsr & MPC85xx_PORDEVSR_PCI1;
+ uint freq = CONFIG_SYS_CLK_FREQ / 1000 / 1000;
+
+ width = 0; /* Silence compiler warning... */
+ io_sel &= 0xf; /* Silence compiler warning... */
+ pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
+ hose = &pci1_hose;
+ host = host_agent_cfg[host_agent].pci_host[0];
+ r = hose->regions;
+
+
+ if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
+ printf("\n PCI1: %d bit %s, %s %d MHz, %s, %s\n",
+ pci_32 ? 32 : 64,
+ pcix ? "PCIX" : "PCI",
+ pci_spd_norm ? ">=" : "<=",
+ pcix ? freq * 2 : freq,
+ host ? "host" : "agent",
+ pci_arb ? "arbiter" : "external-arbiter");
+
+ /* inbound */
+ r += fsl_pci_setup_inbound_windows(r);
+
+ /* outbound memory */
+ pci_set_region(r++,
+ CONFIG_SYS_PCI1_MEM_BASE,
+ CONFIG_SYS_PCI1_MEM_PHYS,
+ CONFIG_SYS_PCI1_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(r++,
+ CONFIG_SYS_PCI1_IO_BASE,
+ CONFIG_SYS_PCI1_IO_PHYS,
+ CONFIG_SYS_PCI1_IO_SIZE,
+ PCI_REGION_IO);
+
+ hose->region_count = r - hose->regions;
+
+ hose->first_busno = first_free_busno;
+ pci_setup_indirect(hose, (int)&pci->cfg_addr,
+ (int)&pci->cfg_data);
+
+ fsl_pci_init(hose);
+
+ /* Unlock inbound PCI configuration cycles */
+ if (!host)
+ fsl_pci_config_unlock(hose);
+
+ first_free_busno = hose->last_busno + 1;
+ printf(" PCI1 on bus %02x - %02x\n",
+ hose->first_busno, hose->last_busno);
+ } else {
+ printf(" PCI1: disabled\n");
+ }
+#elif defined CONFIG_MPC8548
+ /* PCI1 not present on MPC8572 */
+ gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
+#endif
+#ifdef CONFIG_PCIE1
+ pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
+ hose = &pcie1_hose;
+ host = host_agent_cfg[host_agent].pcie_root[0];
+ width = io_port_cfg[io_sel].pcie_width[0];
+ r = hose->regions;
+
+ if (width && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
+ printf("\n PCIE1 connected as %s (x%d)",
+ host ? "Root Complex" : "End Point", width);
+ if (pci->pme_msg_det) {
+ pci->pme_msg_det = 0xffffffff;
+ debug(" with errors. Clearing. Now 0x%08x",
+ pci->pme_msg_det);
+ }
+ printf("\n");
+
+ /* inbound */
+ r += fsl_pci_setup_inbound_windows(r);
+
+ /* outbound memory */
+ pci_set_region(r++,
+ CONFIG_SYS_PCIE1_MEM_BASE,
+ CONFIG_SYS_PCIE1_MEM_PHYS,
+ CONFIG_SYS_PCIE1_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(r++,
+ CONFIG_SYS_PCIE1_IO_BASE,
+ CONFIG_SYS_PCIE1_IO_PHYS,
+ CONFIG_SYS_PCIE1_IO_SIZE,
+ PCI_REGION_IO);
+
+ hose->region_count = r - hose->regions;
+
+ hose->first_busno = first_free_busno;
+ pci_setup_indirect(hose, (int)&pci->cfg_addr,
+ (int) &pci->cfg_data);
+
+ fsl_pci_init(hose);
+
+ /* Unlock inbound PCI configuration cycles */
+ if (!host)
+ fsl_pci_config_unlock(hose);
+
+ first_free_busno = hose->last_busno + 1;
+ printf(" PCIE1 on bus %02x - %02x\n",
+ hose->first_busno, hose->last_busno);
+ }
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
+#endif /* CONFIG_PCIE1 */
+
+#ifdef CONFIG_PCIE2
+ pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
+ hose = &pcie2_hose;
+ host = host_agent_cfg[host_agent].pcie_root[1];
+ width = io_port_cfg[io_sel].pcie_width[1];
+ r = hose->regions;
+
+ if (width && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
+ printf("\n PCIE2 connected as %s (x%d)",
+ host ? "Root Complex" : "End Point", width);
+ if (pci->pme_msg_det) {
+ pci->pme_msg_det = 0xffffffff;
+ debug(" with errors. Clearing. Now 0x%08x",
+ pci->pme_msg_det);
+ }
+ printf("\n");
+
+ /* inbound */
+ r += fsl_pci_setup_inbound_windows(r);
+
+ /* outbound memory */
+ pci_set_region(r++,
+ CONFIG_SYS_PCIE2_MEM_BASE,
+ CONFIG_SYS_PCIE2_MEM_PHYS,
+ CONFIG_SYS_PCIE2_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(r++,
+ CONFIG_SYS_PCIE2_IO_BASE,
+ CONFIG_SYS_PCIE2_IO_PHYS,
+ CONFIG_SYS_PCIE2_IO_SIZE,
+ PCI_REGION_IO);
+
+ hose->region_count = r - hose->regions;
+
+ hose->first_busno = first_free_busno;
+ pci_setup_indirect(hose, (int)&pci->cfg_addr,
+ (int)&pci->cfg_data);
+
+ fsl_pci_init(hose);
+
+ /* Unlock inbound PCI configuration cycles */
+ if (!host)
+ fsl_pci_config_unlock(hose);
+
+ first_free_busno = hose->last_busno + 1;
+ printf(" PCIE2 on bus %02x - %02x\n",
+ hose->first_busno, hose->last_busno);
+ }
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCIE2; /* disable */
+#endif /* CONFIG_PCIE2 */
+
+#ifdef CONFIG_PCIE3
+ pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
+ hose = &pcie3_hose;
+ host = host_agent_cfg[host_agent].pcie_root[2];
+ width = io_port_cfg[io_sel].pcie_width[2];
+ r = hose->regions;
+
+ if (width && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
+ printf("\n PCIE3 connected as %s (x%d)",
+ host ? "Root Complex" : "End Point", width);
+ if (pci->pme_msg_det) {
+ pci->pme_msg_det = 0xffffffff;
+ debug(" with errors. Clearing. Now 0x%08x",
+ pci->pme_msg_det);
+ }
+ printf("\n");
+
+ /* inbound */
+ r += fsl_pci_setup_inbound_windows(r);
+
+ /* outbound memory */
+ pci_set_region(r++,
+ CONFIG_SYS_PCIE3_MEM_BASE,
+ CONFIG_SYS_PCIE3_MEM_PHYS,
+ CONFIG_SYS_PCIE3_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(r++,
+ CONFIG_SYS_PCIE3_IO_BASE,
+ CONFIG_SYS_PCIE3_IO_PHYS,
+ CONFIG_SYS_PCIE3_IO_SIZE,
+ PCI_REGION_IO);
+
+ hose->region_count = r - hose->regions;
+
+ hose->first_busno = first_free_busno;
+ pci_setup_indirect(hose, (int)&pci->cfg_addr,
+ (int)&pci->cfg_data);
+
+ fsl_pci_init(hose);
+
+ /* Unlock inbound PCI configuration cycles */
+ if (!host)
+ fsl_pci_config_unlock(hose);
+
+ first_free_busno = hose->last_busno + 1;
+ printf(" PCIE3 on bus %02x - %02x\n",
+ hose->first_busno, hose->last_busno);
+ }
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCIE3; /* disable */
+#endif /* CONFIG_PCIE3 */
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+extern void ft_fsl_pci_setup(void *blob, const char *pci_alias,
+ struct pci_controller *hose);
+
+void ft_board_pci_setup(void *blob, bd_t *bd)
+{
+ /* TODO - make node name (eg pci0) dynamic */
+#ifdef CONFIG_PCI1
+ ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
+#endif
+#ifdef CONFIG_PCIE1
+ ft_fsl_pci_setup(blob, "pci2", &pcie1_hose);
+#endif
+#ifdef CONFIG_PCIE2
+ ft_fsl_pci_setup(blob, "pci1", &pcie2_hose);
+#endif
+#ifdef CONFIG_PCIE3
+ ft_fsl_pci_setup(blob, "pci0", &pcie3_hose);
+#endif
+}
+#endif /* CONFIG_OF_BOARD_SETUP */
generated by cgit v1.1 at 2024-11-24 21:36:56 +0000