* MA 02111-1307 USA
*/
-/* define DEBUG for debugging output (obviously ;-)) */
-#if 0
-#define DEBUG
-#endif
-
#include <common.h>
#include <watchdog.h>
#include <command.h>
#if defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#include <libfdt_env.h>
+#include <fdt_support.h>
+#include <asm/4xx_pcie.h>
DECLARE_GLOBAL_DATA_PTR;
-static void do_fixup(void *fdt, const char *node, const char *prop,
- const void *val, int len, int create)
-{
-#if defined(DEBUG)
- int i;
- debug("Updating property '%s/%s' = ", node, prop);
- for (i = 0; i < len; i++)
- debug(" %.2x", *(u8*)(val+i));
- debug("(%d)\n", *(u32 *)val);
-#endif
- int rc = fdt_find_and_setprop(fdt, node, prop, val, len, create);
- if (rc)
- printf("Unable to update property %s:%s, err=%s\n",
- node, prop, fdt_strerror(rc));
-}
-
-static void do_fixup_macaddr(void *fdt, int offset, const void *val, int i)
-{
- int rc;
-
- debug("Updating node EMAC%d\n", i);
-
- rc = fdt_setprop(fdt, offset, "mac-address", val, 6);
- if (rc)
- printf("Unable to update property %s, err=%s\n",
- "mac-address", fdt_strerror(rc));
- rc = fdt_setprop(fdt, offset, "local-mac-address", val, 6);
- if (rc)
- printf("Unable to update property %s, err=%s\n",
- "local-mac-address", fdt_strerror(rc));
-}
-
-static void do_fixup_u32(void *fdt, const char *node, const char *prop,
- u32 val, int create)
-{
- val = cpu_to_fdt32(val);
- do_fixup(fdt, node, prop, &val, sizeof(val), create);
-}
-
-static void do_fixup_uart(void *fdt, int offset, int i, bd_t *bd)
+/*
+ * Fixup all PCIe nodes by setting the device_type property
+ * to "pci-endpoint" instead is "pci" for endpoint ports.
+ * This property will get checked later by the Linux driver
+ * to properly configure the PCIe port in Linux (again).
+ */
+void fdt_pcie_setup(void *blob)
{
+ const char *compat = "ibm,plb-pciex";
+ const char *prop = "device_type";
+ const char *prop_val = "pci-endpoint";
+ const u32 *port;
+ int no;
int rc;
- u32 val;
- PPC4xx_SYS_INFO sys_info;
- get_sys_info(&sys_info);
-
- debug("Updating node UART%d: clock-frequency=%d\n", i, gd->uart_clk);
-
- val = cpu_to_fdt32(gd->uart_clk);
- rc = fdt_setprop(fdt, offset, "clock-frequency", &val, 4);
- if (rc)
- printf("Unable to update node UART, err=%s\n", fdt_strerror(rc));
+ /* Search first PCIe node */
+ no = fdt_node_offset_by_compatible(blob, -1, compat);
+ while (no != -FDT_ERR_NOTFOUND) {
+ port = fdt_getprop(blob, no, "port", NULL);
+ if (port == NULL) {
+ printf("WARNING: could not find port property\n");
+ } else {
+ if (is_end_point(*port)) {
+ rc = fdt_setprop(blob, no, prop, prop_val,
+ strlen(prop_val) + 1);
+ if (rc < 0)
+ printf("WARNING: could not set %s for %s: %s.\n",
+ prop, compat, fdt_strerror(rc));
+ }
+ }
- val = cpu_to_fdt32(bd->bi_baudrate);
- rc = fdt_setprop(fdt, offset, "current-speed", &val, 4);
- if (rc)
- printf("Unable to update node UART, err=%s\n", fdt_strerror(rc));
+ /* Jump to next PCIe node */
+ no = fdt_node_offset_by_compatible(blob, no, compat);
+ }
}
void ft_cpu_setup(void *blob, bd_t *bd)
{
- char * cpu_path = "/cpus/" OF_CPU;
sys_info_t sys_info;
- int offset;
- int i;
- int tmp[2];
- get_sys_info (&sys_info);
+ get_sys_info(&sys_info);
- do_fixup_u32(blob, cpu_path, "timebase-frequency", bd->bi_intfreq, 1);
- do_fixup_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
- do_fixup_u32(blob, "/plb", "clock-frequency", sys_info.freqPLB, 1);
- do_fixup_u32(blob, "/plb/opb", "clock-frequency", sys_info.freqOPB, 1);
- do_fixup_u32(blob, "/plb/opb/ebc", "clock-frequency", sys_info.freqEBC, 1);
+ do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "timebase-frequency",
+ bd->bi_intfreq, 1);
+ do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "clock-frequency",
+ bd->bi_intfreq, 1);
+ do_fixup_by_path_u32(blob, "/plb", "clock-frequency", sys_info.freqPLB, 1);
+ do_fixup_by_path_u32(blob, "/plb/opb", "clock-frequency", sys_info.freqOPB, 1);
- /* update, or add and update /memory node */
- offset = fdt_find_node_by_path(blob, "/memory");
- if (offset < 0) {
- offset = fdt_add_subnode(blob, 0, "memory");
- if (offset < 0)
- debug("failed to add /memory node: %s\n",
- fdt_strerror(offset));
- }
- if (offset >= 0) {
- fdt_setprop(blob, offset, "device_type",
- "memory", sizeof("memory"));
- tmp[0] = cpu_to_fdt32(bd->bi_memstart);
- tmp[1] = cpu_to_fdt32(bd->bi_memsize);
- fdt_setprop(blob, offset, "reg", tmp, sizeof(tmp));
- debug("Updating /memory node to %d:%d\n",
- bd->bi_memstart, bd->bi_memsize);
- }
+ if (fdt_path_offset(blob, "/plb/opb/ebc") >= 0)
+ do_fixup_by_path_u32(blob, "/plb/opb/ebc", "clock-frequency",
+ sys_info.freqEBC, 1);
+ else
+ do_fixup_by_path_u32(blob, "/plb/ebc", "clock-frequency",
+ sys_info.freqEBC, 1);
+
+ fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
/*
* Setup all baudrates for the UARTs
*/
- offset = 0;
- for (i = 0; i < 4; i++) {
- offset = fdt_find_node_by_type(blob, offset, "serial");
- if (offset < 0)
- break;
-
- do_fixup_uart(blob, offset, i, bd);
- }
+ do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1);
/*
- * Setup all MAC addresses in fdt
+ * Fixup all ethernet nodes
+ * Note: aliases in the dts are required for this
*/
- offset = 0;
- for (i = 0; i < 4; i++) {
- offset = fdt_find_node_by_type(blob, offset, "network");
- if (offset < 0)
- break;
+ fdt_fixup_ethernet(blob, bd);
- switch (i) {
- case 0:
- do_fixup_macaddr(blob, offset, bd->bi_enetaddr, 0);
- break;
-#ifdef CONFIG_HAS_ETH1
- case 1:
- do_fixup_macaddr(blob, offset, bd->bi_enet1addr, 1);
- break;
-#endif
-#ifdef CONFIG_HAS_ETH2
- case 2:
- do_fixup_macaddr(blob, offset, bd->bi_enet2addr, 2);
- break;
-#endif
-#ifdef CONFIG_HAS_ETH3
- case 3:
- do_fixup_macaddr(blob, offset, bd->bi_enet3addr, 3);
- break;
-#endif
- }
- }
+ /*
+ * Fixup all available PCIe nodes by setting the device_type property
+ */
+ fdt_pcie_setup(blob);
}
#endif /* CONFIG_OF_LIBFDT */
projects / u-boot / blobdiff