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-rw-r--r--drivers/pci/pci-uclass.c24
-rw-r--r--drivers/pci/pci_auto.c15
-rw-r--r--drivers/pci/pci_auto_old.c2
-rw-r--r--drivers/pci/pci_compat.c15
-rw-r--r--drivers/pci/pci_internal.h12
-rw-r--r--drivers/pci/pci_mvebu.c14
-rw-r--r--drivers/pci/pci_rom.c53
7 files changed, 96 insertions, 39 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index 685df9d274..61292d72bd 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -22,7 +22,7 @@
DECLARE_GLOBAL_DATA_PTR;
-static int pci_get_bus(int busnum, struct udevice **busp)
+int pci_get_bus(int busnum, struct udevice **busp)
{
int ret;
@@ -41,20 +41,6 @@ static int pci_get_bus(int busnum, struct udevice **busp)
return ret;
}
-struct pci_controller *pci_bus_to_hose(int busnum)
-{
- struct udevice *bus;
- int ret;
-
- ret = pci_get_bus(busnum, &bus);
- if (ret) {
- debug("%s: Cannot get bus %d: ret=%d\n", __func__, busnum, ret);
- return NULL;
- }
-
- return dev_get_uclass_priv(bus);
-}
-
struct udevice *pci_get_controller(struct udevice *dev)
{
while (device_is_on_pci_bus(dev))
@@ -1067,6 +1053,14 @@ u32 dm_pci_read_bar32(struct udevice *dev, int barnum)
return addr & PCI_BASE_ADDRESS_MEM_MASK;
}
+void dm_pci_write_bar32(struct udevice *dev, int barnum, u32 addr)
+{
+ int bar;
+
+ bar = PCI_BASE_ADDRESS_0 + barnum * 4;
+ dm_pci_write_config32(dev, bar, addr);
+}
+
static int _dm_pci_bus_to_phys(struct udevice *ctlr,
pci_addr_t bus_addr, unsigned long flags,
unsigned long skip_mask, phys_addr_t *pa)
diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c
index 842eafc4f8..88bc416c61 100644
--- a/drivers/pci/pci_auto.c
+++ b/drivers/pci/pci_auto.c
@@ -9,6 +9,7 @@
*/
#include <common.h>
+#include <dm.h>
#include <errno.h>
#include <pci.h>
@@ -167,8 +168,8 @@ void dm_pciauto_prescan_setup_bridge(struct udevice *dev, int sub_bus)
struct pci_region *pci_prefetch;
struct pci_region *pci_io;
u16 cmdstat, prefechable_64;
- /* The root controller has the region information */
- struct pci_controller *ctlr_hose = pci_bus_to_hose(0);
+ struct udevice *ctlr = pci_get_controller(dev);
+ struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr);
pci_mem = ctlr_hose->pci_mem;
pci_prefetch = ctlr_hose->pci_prefetch;
@@ -248,9 +249,8 @@ void dm_pciauto_postscan_setup_bridge(struct udevice *dev, int sub_bus)
struct pci_region *pci_mem;
struct pci_region *pci_prefetch;
struct pci_region *pci_io;
-
- /* The root controller has the region information */
- struct pci_controller *ctlr_hose = pci_bus_to_hose(0);
+ struct udevice *ctlr = pci_get_controller(dev);
+ struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr);
pci_mem = ctlr_hose->pci_mem;
pci_prefetch = ctlr_hose->pci_prefetch;
@@ -311,13 +311,13 @@ int dm_pciauto_config_device(struct udevice *dev)
unsigned int sub_bus = PCI_BUS(dm_pci_get_bdf(dev));
unsigned short class;
bool enum_only = false;
+ struct udevice *ctlr = pci_get_controller(dev);
+ struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr);
int n;
#ifdef CONFIG_PCI_ENUM_ONLY
enum_only = true;
#endif
- /* The root controller has the region information */
- struct pci_controller *ctlr_hose = pci_bus_to_hose(0);
pci_mem = ctlr_hose->pci_mem;
pci_prefetch = ctlr_hose->pci_prefetch;
@@ -375,6 +375,7 @@ int dm_pciauto_config_device(struct udevice *dev)
case PCI_CLASS_PROCESSOR_POWERPC: /* an agent or end-point */
debug("PCI AutoConfig: Found PowerPC device\n");
+ /* fall through */
default:
dm_pciauto_setup_device(dev, 6, pci_mem, pci_prefetch, pci_io,
diff --git a/drivers/pci/pci_auto_old.c b/drivers/pci/pci_auto_old.c
index 9126f78b89..edc9a7b3c1 100644
--- a/drivers/pci/pci_auto_old.c
+++ b/drivers/pci/pci_auto_old.c
@@ -101,11 +101,11 @@ void pciauto_setup_device(struct pci_controller *hose,
bar_res = prefetch;
else
bar_res = mem;
-#endif
debug("PCI Autoconfig: BAR %d, %s, size=0x%llx, ",
bar_nr, bar_res == prefetch ? "Prf" : "Mem",
(unsigned long long)bar_size);
+#endif
}
#ifndef CONFIG_PCI_ENUM_ONLY
diff --git a/drivers/pci/pci_compat.c b/drivers/pci/pci_compat.c
index dd15eb19f8..ddaf358e26 100644
--- a/drivers/pci/pci_compat.c
+++ b/drivers/pci/pci_compat.c
@@ -12,6 +12,7 @@
#include <pci.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
+#include "pci_internal.h"
#define PCI_HOSE_OP(rw, name, size, type) \
int pci_hose_##rw##_config_##name(struct pci_controller *hose, \
@@ -36,3 +37,17 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
return -1;
return dm_pci_get_bdf(dev);
}
+
+struct pci_controller *pci_bus_to_hose(int busnum)
+{
+ struct udevice *bus;
+ int ret;
+
+ ret = pci_get_bus(busnum, &bus);
+ if (ret) {
+ debug("%s: Cannot get bus %d: ret=%d\n", __func__, busnum, ret);
+ return NULL;
+ }
+
+ return dev_get_uclass_priv(bus);
+}
diff --git a/drivers/pci/pci_internal.h b/drivers/pci/pci_internal.h
index 0867575a58..616b9c174c 100644
--- a/drivers/pci/pci_internal.h
+++ b/drivers/pci/pci_internal.h
@@ -47,4 +47,16 @@ void dm_pciauto_postscan_setup_bridge(struct udevice *dev, int sub_bus);
*/
int dm_pciauto_config_device(struct udevice *dev);
+/**
+ * pci_get_bus() - Get a pointer to a bus, given its number
+ *
+ * This looks up a PCI bus based on its bus number. The bus is probed if
+ * necessary.
+ *
+ * @busnum: PCI bus number to look up
+ * @busp: Returns PCI bus on success
+ * @return 0 on success, or -ve error
+ */
+int pci_get_bus(int busnum, struct udevice **busp);
+
#endif
diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c
index fd2744dbd4..4eedfe1cbb 100644
--- a/drivers/pci/pci_mvebu.c
+++ b/drivers/pci/pci_mvebu.c
@@ -155,6 +155,14 @@ static void mvebu_get_port_lane(struct mvebu_pcie *pcie, int pex_idx,
}
#endif
+static int mvebu_pex_unit_is_x4(int pex_idx)
+{
+ int pex_unit = pex_idx < 9 ? pex_idx >> 2 : 3;
+ u32 mask = (0x0f << (pex_unit * 8));
+
+ return (readl(COMPHY_REFCLK_ALIGNMENT) & mask) == mask;
+}
+
static inline bool mvebu_pcie_link_up(struct mvebu_pcie *pcie)
{
u32 val;
@@ -419,5 +427,11 @@ void pci_init_board(void)
writel(0, pcie->base + PCIE_BAR_HI_OFF(0));
bus = hose->last_busno + 1;
+
+ /* need to skip more for X4 links, otherwise scan will hang */
+ if (mvebu_soc_family() == MVEBU_SOC_AXP) {
+ if (mvebu_pex_unit_is_x4(i))
+ i += 3;
+ }
}
}
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 2cb81b66b7..d5bf6f4c47 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -129,14 +129,26 @@ static int pci_rom_probe(struct udevice *dev, struct pci_rom_header **hdrp)
return 0;
}
-int pci_rom_load(struct pci_rom_header *rom_header,
- struct pci_rom_header **ram_headerp)
+/**
+ * pci_rom_load() - Load a ROM image and return a pointer to it
+ *
+ * @rom_header: Pointer to ROM image
+ * @ram_headerp: Returns a pointer to the image in RAM
+ * @allocedp: Returns true if @ram_headerp was allocated and needs
+ * to be freed
+ * @return 0 if OK, -ve on error. Note that @allocedp is set up regardless of
+ * the error state. Even if this function returns an error, it may have
+ * allocated memory.
+ */
+static int pci_rom_load(struct pci_rom_header *rom_header,
+ struct pci_rom_header **ram_headerp, bool *allocedp)
{
struct pci_rom_data *rom_data;
unsigned int rom_size;
unsigned int image_size = 0;
void *target;
+ *allocedp = false;
do {
/* Get next image, until we see an x86 version */
rom_header = (struct pci_rom_header *)((void *)rom_header +
@@ -159,6 +171,7 @@ int pci_rom_load(struct pci_rom_header *rom_header,
target = (void *)malloc(rom_size);
if (!target)
return -ENOMEM;
+ *allocedp = true;
#endif
if (target != rom_header) {
ulong start = get_timer(0);
@@ -253,9 +266,9 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
int exec_method)
{
struct pci_child_platdata *pplat = dev_get_parent_platdata(dev);
- struct pci_rom_header *rom, *ram;
+ struct pci_rom_header *rom, *ram = NULL;
int vesa_mode = -1;
- bool emulate;
+ bool emulate, alloced;
int ret;
/* Only execute VGA ROMs */
@@ -272,12 +285,14 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
if (ret)
return ret;
- ret = pci_rom_load(rom, &ram);
+ ret = pci_rom_load(rom, &ram, &alloced);
if (ret)
- return ret;
+ goto err;
- if (!board_should_run_oprom(dev))
- return -ENXIO;
+ if (!board_should_run_oprom(dev)) {
+ ret = -ENXIO;
+ goto err;
+ }
#if defined(CONFIG_FRAMEBUFFER_SET_VESA_MODE) && \
defined(CONFIG_FRAMEBUFFER_VESA_MODE)
@@ -291,7 +306,8 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
#else
if (!(exec_method & PCI_ROM_ALLOW_FALLBACK)) {
printf("BIOS native execution is only available on x86\n");
- return -ENOSYS;
+ ret = -ENOSYS;
+ goto err;
}
emulate = true;
#endif
@@ -301,7 +317,8 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
#else
if (!(exec_method & PCI_ROM_ALLOW_FALLBACK)) {
printf("BIOS emulation not available - see CONFIG_BIOSEMU\n");
- return -ENOSYS;
+ ret = -ENOSYS;
+ goto err;
}
emulate = false;
#endif
@@ -311,14 +328,14 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
#ifdef CONFIG_BIOSEMU
BE_VGAInfo *info;
- ret = biosemu_setup(dm_pci_get_bdf(dev), &info);
+ ret = biosemu_setup(dev, &info);
if (ret)
- return ret;
+ goto err;
biosemu_set_interrupt_handler(0x15, int15_handler);
- ret = biosemu_run(dm_pci_get_bdf(dev), (uchar *)ram, 1 << 16,
- info, true, vesa_mode, &mode_info);
+ ret = biosemu_run(dev, (uchar *)ram, 1 << 16, info,
+ true, vesa_mode, &mode_info);
if (ret)
- return ret;
+ goto err;
#endif
} else {
#ifdef CONFIG_X86
@@ -329,6 +346,10 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
#endif
}
debug("Final vesa mode %#x\n", mode_info.video_mode);
+ ret = 0;
- return 0;
+err:
+ if (alloced)
+ free(ram);
+ return ret;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-30 00:13:42 +0000