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-rw-r--r--board/amcc/katmai/katmai.c65
-rw-r--r--board/amcc/kilauea/kilauea.c66
-rw-r--r--board/amcc/yucca/yucca.c73
-rw-r--r--cpu/ppc4xx/4xx_pcie.c22
-rw-r--r--include/asm-ppc/4xx_pcie.h52
-rw-r--r--include/configs/katmai.h1
-rw-r--r--include/configs/kilauea.h1
-rw-r--r--include/configs/yucca.h1
8 files changed, 176 insertions, 105 deletions
diff --git a/board/amcc/katmai/katmai.c b/board/amcc/katmai/katmai.c
index f1c352cb86..0627a7a095 100644
--- a/board/amcc/katmai/katmai.c
+++ b/board/amcc/katmai/katmai.c
@@ -30,9 +30,6 @@
#include <asm/gpio.h>
#include <asm/4xx_pcie.h>
-#undef PCIE_ENDPOINT
-/* #define PCIE_ENDPOINT 1 */
-
DECLARE_GLOBAL_DATA_PTR;
int board_early_init_f (void)
@@ -392,6 +389,7 @@ void pcie_setup_hoses(int busno)
{
struct pci_controller *hose;
int i, bus;
+ int ret = 0;
char *env;
unsigned int delay;
@@ -405,11 +403,14 @@ void pcie_setup_hoses(int busno)
if (!katmai_pcie_card_present(i))
continue;
-#ifdef PCIE_ENDPOINT
- if (ppc4xx_init_pcie_endport(i)) {
-#else
- if (ppc4xx_init_pcie_rootport(i)) {
-#endif
+ if (is_end_point(i)) {
+ printf("PCIE%d: will be configured as endpoint\n", i);
+ ret = ppc4xx_init_pcie_endport(i);
+ } else {
+ printf("PCIE%d: will be configured as root-complex\n", i);
+ ret = ppc4xx_init_pcie_rootport(i);
+ }
+ if (ret) {
printf("PCIE%d: initialization failed\n", i);
continue;
}
@@ -424,35 +425,33 @@ void pcie_setup_hoses(int busno)
CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
CFG_PCIE_MEMSIZE,
- PCI_REGION_MEM
- );
+ PCI_REGION_MEM);
hose->region_count = 1;
pci_register_hose(hose);
-#ifdef PCIE_ENDPOINT
- 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);
+ 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;
}
-
- /*
- * Config access can only go down stream
- */
- hose->last_busno = pci_hose_scan(hose);
- bus = hose->last_busno + 1;
-#endif
}
}
#endif /* defined(CONFIG_PCI) */
diff --git a/board/amcc/kilauea/kilauea.c b/board/amcc/kilauea/kilauea.c
index 8767f75881..b59bd6fc0e 100644
--- a/board/amcc/kilauea/kilauea.c
+++ b/board/amcc/kilauea/kilauea.c
@@ -299,35 +299,29 @@ void pci_target_init(struct pci_controller * hose )
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
#ifdef CONFIG_PCI
-static int pcie_port_is_rootpoint(int port)
-{
- return 1;
-}
-
static struct pci_controller pcie_hose[2] = {{0},{0}};
void pcie_setup_hoses(int busno)
{
struct pci_controller *hose;
int i, bus;
+ int ret = 0;
bus = busno;
char *env;
unsigned int delay;
for (i = 0; i < 2; i++) {
- if (pcie_port_is_rootpoint(i)) {
- printf("PORT%d will be configured as root-complex\n", i);
- if (ppc4xx_init_pcie_rootport(i)) {
- printf("PCIE%d: initialization failed\n", i);
- continue;
- }
+ if (is_end_point(i)) {
+ printf("PCIE%d: will be configured as endpoint\n", i);
+ ret = ppc4xx_init_pcie_endport(i);
} else {
- printf("PORT%d will be configured as endpoint\n", i);
- if (ppc4xx_init_pcie_endport(i)) {
- printf("PCIE%d: initialization failed\n", i);
- continue;
- }
+ printf("PCIE%d: will be configured as root-complex\n", i);
+ ret = ppc4xx_init_pcie_rootport(i);
+ }
+ if (ret) {
+ printf("PCIE%d: initialization failed\n", i);
+ continue;
}
hose = &pcie_hose[i];
@@ -344,25 +338,29 @@ void pcie_setup_hoses(int busno)
hose->region_count = 1;
pci_register_hose(hose);
- if (pcie_port_is_rootpoint(i))
- ppc4xx_setup_pcie_rootpoint(hose, i);
- else
- ppc4xx_setup_pcie_endpoint(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);
- }
+ 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;
+ /*
+ * Config access can only go down stream
+ */
+ hose->last_busno = pci_hose_scan(hose);
+ bus = hose->last_busno + 1;
+ }
}
}
#endif
diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c
index c46721c922..efdf814bf0 100644
--- a/board/amcc/yucca/yucca.c
+++ b/board/amcc/yucca/yucca.c
@@ -36,11 +36,8 @@
DECLARE_GLOBAL_DATA_PTR;
-#undef PCIE_ENDPOINT
-/* #define PCIE_ENDPOINT 1 */
void fpga_init (void);
-
void get_sys_info(PPC440_SYS_INFO *board_cfg );
int compare_to_true(char *str );
char *remove_l_w_space(char *in_str );
@@ -847,6 +844,7 @@ void pcie_setup_hoses(int busno)
{
struct pci_controller *hose;
int i, bus;
+ int ret = 0;
char *env;
unsigned int delay;
@@ -860,16 +858,19 @@ void pcie_setup_hoses(int busno)
if (!yucca_pcie_card_present(i))
continue;
-#ifdef PCIE_ENDPOINT
- yucca_setup_pcie_fpga_endpoint(i);
- if (ppc4xx_init_pcie_endport(i)) {
-#else
- yucca_setup_pcie_fpga_rootpoint(i);
- if (ppc4xx_init_pcie_rootport(i)) {
-#endif
- printf("PCIE%d: initialization failed\n", i);
- continue;
+ if (is_end_point(i)) {
+ printf("PCIE%d: will be configured as endpoint\n",i);
+ yucca_setup_pcie_fpga_endpoint(i);
+ ret = ppc4xx_init_pcie_endport(i);
+ } else {
+ printf("PCIE%d: will be configured as root-complex\n",i);
+ yucca_setup_pcie_fpga_rootpoint(i);
+ ret = ppc4xx_init_pcie_rootport(i);
}
+ if (ret) {
+ printf("PCIE%d: initialization failed\n", i);
+ continue;
+ }
hose = &pcie_hose[i];
hose->first_busno = bus;
@@ -881,35 +882,33 @@ void pcie_setup_hoses(int busno)
CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
CFG_PCIE_MEMSIZE,
- PCI_REGION_MEM
- );
+ PCI_REGION_MEM);
hose->region_count = 1;
pci_register_hose(hose);
-#ifdef PCIE_ENDPOINT
- 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);
- }
+ 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;
-#endif
+ /*
+ * Config access can only go down stream
+ */
+ hose->last_busno = pci_hose_scan(hose);
+ bus = hose->last_busno + 1;
+ }
}
}
#endif /* defined(CONFIG_PCI) */
diff --git a/cpu/ppc4xx/4xx_pcie.c b/cpu/ppc4xx/4xx_pcie.c
index 7ee0e5bc89..9ab358857a 100644
--- a/cpu/ppc4xx/4xx_pcie.c
+++ b/cpu/ppc4xx/4xx_pcie.c
@@ -46,6 +46,20 @@ enum {
LNKW_X8 = 0x8
};
+static int validate_endpoint(struct pci_controller *hose)
+{
+ if (hose->cfg_data == (u8 *)CFG_PCIE0_CFGBASE)
+ return (is_end_point(0));
+ else if (hose->cfg_data == (u8 *)CFG_PCIE1_CFGBASE)
+ return (is_end_point(1));
+#if CFG_PCIE_NR_PORTS > 2
+ else if (hose->cfg_data == (u8 *)CFG_PCIE2_CFGBASE)
+ return (is_end_point(2));
+#endif
+
+ return 0;
+}
+
static u8* pcie_get_base(struct pci_controller *hose, unsigned int devfn)
{
u8 *base = (u8*)hose->cfg_data;
@@ -95,6 +109,9 @@ static int pcie_read_config(struct pci_controller *hose, unsigned int devfn,
u8 *address;
*val = 0;
+ if (validate_endpoint(hose))
+ return 0; /* No upstream config access */
+
/*
* Bus numbers are relative to hose->first_busno
*/
@@ -150,6 +167,9 @@ static int pcie_write_config(struct pci_controller *hose, unsigned int devfn,
u8 *address;
+ if (validate_endpoint(hose))
+ return 0; /* No upstream config access */
+
/*
* Bus numbers are relative to hose->first_busno
*/
@@ -595,9 +615,9 @@ int ppc4xx_init_pcie_port(int port, int rootport)
u32 low, high;
if (!core_init) {
- ++core_init;
if (ppc4xx_init_pcie())
return -1;
+ ++core_init;
}
/*
diff --git a/include/asm-ppc/4xx_pcie.h b/include/asm-ppc/4xx_pcie.h
index 17ac57b23b..1830c6a8ef 100644
--- a/include/asm-ppc/4xx_pcie.h
+++ b/include/asm-ppc/4xx_pcie.h
@@ -244,6 +244,9 @@
#define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL))
#define U64_TO_U32_HIGH(val) ((u32)((val) >> 32))
+/*
+ * Prototypes
+ */
int ppc4xx_init_pcie(void);
int ppc4xx_init_pcie_rootport(int port);
int ppc4xx_init_pcie_endport(int port);
@@ -251,6 +254,55 @@ void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port);
int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port);
int pcie_hose_scan(struct pci_controller *hose, int bus);
+/*
+ * Function to determine root port or endport from env variable.
+ */
+static inline int is_end_point(int port)
+{
+ static char s[10], *tk;
+
+ strcpy(s, getenv("pcie_mode"));
+ tk = strtok(s, ":");
+
+ switch (port) {
+ case 0:
+ if (tk != NULL) {
+ if (!(strcmp(tk, "ep") && strcmp(tk, "EP")))
+ return 1;
+ else
+ return 0;
+ }
+ else
+ return 0;
+
+ case 1:
+ tk = strtok(NULL, ":");
+ if (tk != NULL) {
+ if (!(strcmp(tk, "ep") && strcmp(tk, "EP")))
+ return 1;
+ else
+ return 0;
+ }
+ else
+ return 0;
+
+ case 2:
+ tk = strtok(NULL, ":");
+ if (tk != NULL)
+ tk = strtok(NULL, ":");
+ if (tk != NULL) {
+ if (!(strcmp(tk, "ep") && strcmp(tk, "EP")))
+ return 1;
+ else
+ return 0;
+ }
+ else
+ return 0;
+ }
+
+ return 0;
+}
+
static inline void mdelay(int n)
{
u32 ms = n;
diff --git a/include/configs/katmai.h b/include/configs/katmai.h
index 8a963279f0..cccfc1316d 100644
--- a/include/configs/katmai.h
+++ b/include/configs/katmai.h
@@ -205,6 +205,7 @@
"upd=run load;run update\0" \
"kozio=bootm ffc60000\0" \
"pciconfighost=1\0" \
+ "pcie_mode=RP:RP:RP\0" \
""
#define CONFIG_BOOTCOMMAND "run flash_self"
diff --git a/include/configs/kilauea.h b/include/configs/kilauea.h
index 461f8f0591..f5e20235f7 100644
--- a/include/configs/kilauea.h
+++ b/include/configs/kilauea.h
@@ -205,6 +205,7 @@
"setenv filesize;saveenv\0" \
"nupd=run nload nupdate\0" \
"pciconfighost=1\0" \
+ "pcie_mode=RP:RP\0" \
""
#define CONFIG_BOOTCOMMAND "run flash_self"
diff --git a/include/configs/yucca.h b/include/configs/yucca.h
index ab7fb0ab8c..2b4024dfd9 100644
--- a/include/configs/yucca.h
+++ b/include/configs/yucca.h
@@ -186,6 +186,7 @@
"setenv filesize;saveenv\0" \
"upd=run load;run update\0" \
"pciconfighost=1\0" \
+ "pcie_mode=RP:EP:EP\0" \
""
#define CONFIG_BOOTCOMMAND "run flash_self"
generated by cgit (git 2.34.1) at 2024-12-25 19:15:59 +0000