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path: root/board/amcc/yucca/yucca.c
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Diffstat (limited to 'board/amcc/yucca/yucca.c')
-rw-r--r--board/amcc/yucca/yucca.c191
1 files changed, 30 insertions, 161 deletions
diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c
index d8f4bcb..6493155 100644
--- a/board/amcc/yucca/yucca.c
+++ b/board/amcc/yucca/yucca.c
@@ -679,7 +679,7 @@ int is_pci_host(struct pci_controller *hose)
return 1;
}
-static int yucca_pcie_card_present(int port)
+int board_pcie_card_present(int port)
{
u16 reg;
@@ -697,185 +697,54 @@ static int yucca_pcie_card_present(int port)
}
/*
- * For the given slot, set rootpoint mode, send power to the slot,
- * turn on the green LED and turn off the yellow LED, enable the clock
- * and turn off reset.
- */
-void yucca_setup_pcie_fpga_rootpoint(int port)
-{
- u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
-
- switch(port) {
- case 0:
- rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
- endpoint = 0;
- power = FPGA_REG1A_PE0_PWRON;
- green_led = FPGA_REG1A_PE0_GLED;
- clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
- yellow_led = FPGA_REG1A_PE0_YLED;
- reset_off = FPGA_REG1C_PE0_PERST;
- break;
- case 1:
- rootpoint = 0;
- endpoint = FPGA_REG1C_PE1_ENDPOINT;
- power = FPGA_REG1A_PE1_PWRON;
- green_led = FPGA_REG1A_PE1_GLED;
- clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
- yellow_led = FPGA_REG1A_PE1_YLED;
- reset_off = FPGA_REG1C_PE1_PERST;
- break;
- case 2:
- rootpoint = 0;
- endpoint = FPGA_REG1C_PE2_ENDPOINT;
- power = FPGA_REG1A_PE2_PWRON;
- green_led = FPGA_REG1A_PE2_GLED;
- clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
- yellow_led = FPGA_REG1A_PE2_YLED;
- reset_off = FPGA_REG1C_PE2_PERST;
- break;
-
- default:
- return;
- }
-
- out_be16((u16 *)FPGA_REG1A,
- ~(power | clock | green_led) &
- (yellow_led | in_be16((u16 *)FPGA_REG1A)));
-
- out_be16((u16 *)FPGA_REG1C,
- ~(endpoint | reset_off) &
- (rootpoint | in_be16((u16 *)FPGA_REG1C)));
- /*
- * Leave device in reset for a while after powering on the
- * slot to give it a chance to initialize.
- */
- udelay(250 * 1000);
-
- out_be16((u16 *)FPGA_REG1C, reset_off | in_be16((u16 *)FPGA_REG1C));
-}
-/*
* For the given slot, set endpoint mode, send power to the slot,
- * turn on the green LED and turn off the yellow LED, enable the clock
- * .In end point mode reset bit is read only.
+ * turn on the green LED and turn off the yellow LED, enable the
+ * clock. In end point mode reset bit is read only.
*/
-void yucca_setup_pcie_fpga_endpoint(int port)
+void board_pcie_setup_port(int port, int rootpoint)
{
- u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint;
+ u16 power, clock, green_led, yellow_led,
+ reset_off, rp, ep;
- switch(port) {
+ switch (port) {
case 0:
- rootpoint = FPGA_REG1C_PE0_ROOTPOINT;
- endpoint = 0;
- power = FPGA_REG1A_PE0_PWRON;
- green_led = FPGA_REG1A_PE0_GLED;
- clock = FPGA_REG1A_PE0_REFCLK_ENABLE;
- yellow_led = FPGA_REG1A_PE0_YLED;
- reset_off = FPGA_REG1C_PE0_PERST;
+ rp = FPGA_REG1C_PE0_ROOTPOINT;
+ ep = 0;
break;
case 1:
- rootpoint = 0;
- endpoint = FPGA_REG1C_PE1_ENDPOINT;
- power = FPGA_REG1A_PE1_PWRON;
- green_led = FPGA_REG1A_PE1_GLED;
- clock = FPGA_REG1A_PE1_REFCLK_ENABLE;
- yellow_led = FPGA_REG1A_PE1_YLED;
- reset_off = FPGA_REG1C_PE1_PERST;
+ rp = 0;
+ ep = FPGA_REG1C_PE1_ENDPOINT;
break;
case 2:
- rootpoint = 0;
- endpoint = FPGA_REG1C_PE2_ENDPOINT;
- power = FPGA_REG1A_PE2_PWRON;
- green_led = FPGA_REG1A_PE2_GLED;
- clock = FPGA_REG1A_PE2_REFCLK_ENABLE;
- yellow_led = FPGA_REG1A_PE2_YLED;
- reset_off = FPGA_REG1C_PE2_PERST;
+ rp = 0;
+ ep = FPGA_REG1C_PE2_ENDPOINT;
break;
default:
return;
}
- out_be16((u16 *)FPGA_REG1A,
- ~(power | clock | green_led) &
- (yellow_led | in_be16((u16 *)FPGA_REG1A)));
+ power = FPGA_REG1A_PWRON_ENCODE(port);
+ green_led = FPGA_REG1A_GLED_ENCODE(port);
+ clock = FPGA_REG1A_REFCLK_ENCODE(port);
+ yellow_led = FPGA_REG1A_YLED_ENCODE(port);
+ reset_off = FPGA_REG1C_PERST_ENCODE(port);
- out_be16((u16 *)FPGA_REG1C,
- ~(rootpoint | reset_off) &
- (endpoint | in_be16((u16 *)FPGA_REG1C)));
-}
+ out_be16((u16 *)FPGA_REG1A, ~(power | clock | green_led) &
+ (yellow_led | in_be16((u16 *)FPGA_REG1A)));
-static struct pci_controller pcie_hose[3] = {{0},{0},{0}};
+ out_be16((u16 *)FPGA_REG1C, ~(ep | reset_off) &
+ (rp | in_be16((u16 *)FPGA_REG1C)));
-void pcie_setup_hoses(int busno)
-{
- struct pci_controller *hose;
- int i, bus;
- int ret = 0;
- char *env;
- unsigned int delay;
+ if (rootpoint) {
+ /*
+ * Leave device in reset for a while after powering on the
+ * slot to give it a chance to initialize.
+ */
+ udelay(250 * 1000);
- /*
- * assume we're called after the PCIX hose is initialized, which takes
- * bus ID 0 and therefore start numbering PCIe's from 1.
- */
- bus = busno;
- for (i = 0; i <= 2; i++) {
- /* Check for yucca card presence */
- if (!yucca_pcie_card_present(i))
- continue;
-
- if (is_end_point(i)) {
- yucca_setup_pcie_fpga_endpoint(i);
- ret = ppc4xx_init_pcie_endport(i);
- } else {
- yucca_setup_pcie_fpga_rootpoint(i);
- ret = ppc4xx_init_pcie_rootport(i);
- }
- if (ret == -ENODEV)
- continue;
- if (ret) {
- printf("PCIE%d: initialization as %s failed\n", i,
- is_end_point(i) ? "endpoint" : "root-complex");
- continue;
- }
-
- hose = &pcie_hose[i];
- hose->first_busno = bus;
- hose->last_busno = bus;
- hose->current_busno = bus;
-
- /* setup mem resource */
- pci_set_region(hose->regions + 0,
- CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
- CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
- CONFIG_SYS_PCIE_MEMSIZE,
- PCI_REGION_MEM);
- hose->region_count = 1;
- pci_register_hose(hose);
-
- if (is_end_point(i)) {
- ppc4xx_setup_pcie_endpoint(hose, i);
- /*
- * Reson for no scanning is endpoint can not generate
- * upstream configuration accesses.
- */
- } else {
- ppc4xx_setup_pcie_rootpoint(hose, i);
- env = getenv("pciscandelay");
- if (env != NULL) {
- delay = simple_strtoul(env, NULL, 10);
- if (delay > 5)
- printf("Warning, expect noticable delay before "
- "PCIe scan due to 'pciscandelay' value!\n");
- mdelay(delay * 1000);
- }
-
- /*
- * Config access can only go down stream
- */
- hose->last_busno = pci_hose_scan(hose);
- bus = hose->last_busno + 1;
- }
+ out_be16((u16 *)FPGA_REG1C,
+ reset_off | in_be16((u16 *)FPGA_REG1C));
}
}
#endif /* defined(CONFIG_PCI) */
generated by cgit v1.1 at 2024-12-01 01:15:35 +0000