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-rw-r--r--drivers/clk/Kconfig8
-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/clk_boston.c97
-rw-r--r--drivers/core/lists.c78
-rw-r--r--drivers/core/regmap.c20
-rw-r--r--drivers/core/syscon-uclass.c11
-rw-r--r--drivers/mmc/dw_mmc.c23
-rw-r--r--drivers/mmc/mmc.c68
-rw-r--r--drivers/mmc/mmc_write.c9
-rw-r--r--drivers/mmc/sdhci.c105
-rw-r--r--drivers/net/Kconfig2
-rw-r--r--drivers/net/pch_gbe.c28
-rw-r--r--drivers/net/xilinx_emaclite.c90
-rw-r--r--drivers/pci/Kconfig7
-rw-r--r--drivers/pci/Makefile1
-rw-r--r--drivers/pci/pci-uclass.c2
-rw-r--r--drivers/pci/pcie_xilinx.c220
-rw-r--r--drivers/serial/ns16550.c21
18 files changed, 640 insertions, 151 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 8f3b96a973..c05ce2a9ef 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -20,6 +20,14 @@ config SPL_CLK
setting up clocks within SPL, and allows the same drivers to be
used as U-Boot proper.
+config CLK_BOSTON
+ def_bool y if TARGET_BOSTON
+ depends on CLK
+ select REGMAP
+ select SYSCON
+ help
+ Enable this to support the clocks
+
source "drivers/clk/tegra/Kconfig"
source "drivers/clk/uniphier/Kconfig"
source "drivers/clk/exynos/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 778d7486f0..40a5e8cae8 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -15,3 +15,4 @@ obj-y += tegra/
obj-$(CONFIG_CLK_UNIPHIER) += uniphier/
obj-$(CONFIG_CLK_EXYNOS) += exynos/
obj-$(CONFIG_CLK_AT91) += at91/
+obj-$(CONFIG_CLK_BOSTON) += clk_boston.o
diff --git a/drivers/clk/clk_boston.c b/drivers/clk/clk_boston.c
new file mode 100644
index 0000000000..78f1b759d8
--- /dev/null
+++ b/drivers/clk/clk_boston.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <dt-bindings/clock/boston-clock.h>
+#include <regmap.h>
+#include <syscon.h>
+
+struct clk_boston {
+ struct regmap *regmap;
+};
+
+#define BOSTON_PLAT_MMCMDIV 0x30
+# define BOSTON_PLAT_MMCMDIV_CLK0DIV (0xff << 0)
+# define BOSTON_PLAT_MMCMDIV_INPUT (0xff << 8)
+# define BOSTON_PLAT_MMCMDIV_MUL (0xff << 16)
+# define BOSTON_PLAT_MMCMDIV_CLK1DIV (0xff << 24)
+
+static uint32_t ext_field(uint32_t val, uint32_t mask)
+{
+ return (val & mask) >> (ffs(mask) - 1);
+}
+
+static ulong clk_boston_get_rate(struct clk *clk)
+{
+ struct clk_boston *state = dev_get_platdata(clk->dev);
+ uint32_t in_rate, mul, div;
+ uint mmcmdiv;
+ int err;
+
+ err = regmap_read(state->regmap, BOSTON_PLAT_MMCMDIV, &mmcmdiv);
+ if (err)
+ return 0;
+
+ in_rate = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_INPUT);
+ mul = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_MUL);
+
+ switch (clk->id) {
+ case BOSTON_CLK_SYS:
+ div = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_CLK0DIV);
+ break;
+ case BOSTON_CLK_CPU:
+ div = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_CLK1DIV);
+ break;
+ default:
+ return 0;
+ }
+
+ return (in_rate * mul * 1000000) / div;
+}
+
+const struct clk_ops clk_boston_ops = {
+ .get_rate = clk_boston_get_rate,
+};
+
+static int clk_boston_ofdata_to_platdata(struct udevice *dev)
+{
+ struct clk_boston *state = dev_get_platdata(dev);
+ struct udevice *syscon;
+ int err;
+
+ err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
+ "regmap", &syscon);
+ if (err) {
+ error("unable to find syscon device\n");
+ return err;
+ }
+
+ state->regmap = syscon_get_regmap(syscon);
+ if (!state->regmap) {
+ error("unable to find regmap\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static const struct udevice_id clk_boston_match[] = {
+ {
+ .compatible = "img,boston-clock",
+ },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(clk_boston) = {
+ .name = "boston_clock",
+ .id = UCLASS_CLK,
+ .of_match = clk_boston_match,
+ .ofdata_to_platdata = clk_boston_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct clk_boston),
+ .ops = &clk_boston_ops,
+};
diff --git a/drivers/core/lists.c b/drivers/core/lists.c
index 6a634e6951..23b6ba78d3 100644
--- a/drivers/core/lists.c
+++ b/drivers/core/lists.c
@@ -101,36 +101,24 @@ int device_bind_driver_to_node(struct udevice *parent, const char *drv_name,
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
/**
- * driver_check_compatible() - Check if a driver is compatible with this node
+ * driver_check_compatible() - Check if a driver matches a compatible string
*
- * @param blob: Device tree pointer
- * @param offset: Offset of node in device tree
* @param of_match: List of compatible strings to match
* @param of_idp: Returns the match that was found
- * @return 0 if there is a match, -ENOENT if no match, -ENODEV if the node
- * does not have a compatible string, other error <0 if there is a device
- * tree error
+ * @param compat: The compatible string to search for
+ * @return 0 if there is a match, -ENOENT if no match
*/
-static int driver_check_compatible(const void *blob, int offset,
- const struct udevice_id *of_match,
- const struct udevice_id **of_idp)
+static int driver_check_compatible(const struct udevice_id *of_match,
+ const struct udevice_id **of_idp,
+ const char *compat)
{
- int ret;
-
- *of_idp = NULL;
if (!of_match)
return -ENOENT;
while (of_match->compatible) {
- ret = fdt_node_check_compatible(blob, offset,
- of_match->compatible);
- if (!ret) {
+ if (!strcmp(of_match->compatible, compat)) {
*of_idp = of_match;
return 0;
- } else if (ret == -FDT_ERR_NOTFOUND) {
- return -ENODEV;
- } else if (ret < 0) {
- return -EINVAL;
}
of_match++;
}
@@ -147,28 +135,46 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
struct driver *entry;
struct udevice *dev;
bool found = false;
- const char *name;
+ const char *name, *compat_list, *compat;
+ int compat_length, i;
int result = 0;
int ret = 0;
- dm_dbg("bind node %s\n", fdt_get_name(blob, offset, NULL));
+ name = fdt_get_name(blob, offset, NULL);
+ dm_dbg("bind node %s\n", name);
if (devp)
*devp = NULL;
- for (entry = driver; entry != driver + n_ents; entry++) {
- ret = driver_check_compatible(blob, offset, entry->of_match,
- &id);
- name = fdt_get_name(blob, offset, NULL);
- if (ret == -ENOENT) {
- continue;
- } else if (ret == -ENODEV) {
+
+ compat_list = fdt_getprop(blob, offset, "compatible", &compat_length);
+ if (!compat_list) {
+ if (compat_length == -FDT_ERR_NOTFOUND) {
dm_dbg("Device '%s' has no compatible string\n", name);
- break;
- } else if (ret) {
- dm_warn("Device tree error at offset %d\n", offset);
- result = ret;
- break;
+ return 0;
}
+ dm_warn("Device tree error at offset %d\n", offset);
+ return compat_length;
+ }
+
+ /*
+ * Walk through the compatible string list, attempting to match each
+ * compatible string in order such that we match in order of priority
+ * from the first string to the last.
+ */
+ for (i = 0; i < compat_length; i += strlen(compat) + 1) {
+ compat = compat_list + i;
+ dm_dbg(" - attempt to match compatible string '%s'\n",
+ compat);
+
+ for (entry = driver; entry != driver + n_ents; entry++) {
+ ret = driver_check_compatible(entry->of_match, &id,
+ compat);
+ if (!ret)
+ break;
+ }
+ if (entry == driver + n_ents)
+ continue;
+
dm_dbg(" - found match at '%s'\n", entry->name);
ret = device_bind_with_driver_data(parent, entry, name,
id->data, offset, &dev);
@@ -188,10 +194,8 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
break;
}
- if (!found && !result && ret != -ENODEV) {
- dm_dbg("No match for node '%s'\n",
- fdt_get_name(blob, offset, NULL));
- }
+ if (!found && !result && ret != -ENODEV)
+ dm_dbg("No match for node '%s'\n", name);
return result;
}
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index 0299ff0879..c68bcba54f 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -13,6 +13,8 @@
#include <mapmem.h>
#include <regmap.h>
+#include <asm/io.h>
+
DECLARE_GLOBAL_DATA_PTR;
static struct regmap *regmap_alloc_count(int count)
@@ -117,3 +119,21 @@ int regmap_uninit(struct regmap *map)
return 0;
}
+
+int regmap_read(struct regmap *map, uint offset, uint *valp)
+{
+ uint32_t *ptr = map_physmem(map->base + offset, 4, MAP_NOCACHE);
+
+ *valp = le32_to_cpu(readl(ptr));
+
+ return 0;
+}
+
+int regmap_write(struct regmap *map, uint offset, uint val)
+{
+ uint32_t *ptr = map_physmem(map->base + offset, 4, MAP_NOCACHE);
+
+ writel(cpu_to_le32(val), ptr);
+
+ return 0;
+}
diff --git a/drivers/core/syscon-uclass.c b/drivers/core/syscon-uclass.c
index 01bd9683a7..2148469abc 100644
--- a/drivers/core/syscon-uclass.c
+++ b/drivers/core/syscon-uclass.c
@@ -95,3 +95,14 @@ UCLASS_DRIVER(syscon) = {
.per_device_auto_alloc_size = sizeof(struct syscon_uc_info),
.pre_probe = syscon_pre_probe,
};
+
+static const struct udevice_id generic_syscon_ids[] = {
+ { .compatible = "syscon" },
+ { }
+};
+
+U_BOOT_DRIVER(generic_syscon) = {
+ .name = "syscon",
+ .id = UCLASS_SYSCON,
+ .of_match = generic_syscon_ids,
+};
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index afc674dd14..074f86c502 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -120,9 +120,9 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
if (host->fifo_mode && size) {
len = 0;
- if (data->flags == MMC_DATA_READ) {
- if ((dwmci_readl(host, DWMCI_RINTSTS) &
- DWMCI_INTMSK_RXDR)) {
+ if (data->flags == MMC_DATA_READ &&
+ (mask & DWMCI_INTMSK_RXDR)) {
+ while (size) {
len = dwmci_readl(host, DWMCI_STATUS);
len = (len >> DWMCI_FIFO_SHIFT) &
DWMCI_FIFO_MASK;
@@ -130,12 +130,13 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
for (i = 0; i < len; i++)
*buf++ =
dwmci_readl(host, DWMCI_DATA);
- dwmci_writel(host, DWMCI_RINTSTS,
- DWMCI_INTMSK_RXDR);
+ size = size > len ? (size - len) : 0;
}
- } else {
- if ((dwmci_readl(host, DWMCI_RINTSTS) &
- DWMCI_INTMSK_TXDR)) {
+ dwmci_writel(host, DWMCI_RINTSTS,
+ DWMCI_INTMSK_RXDR);
+ } else if (data->flags == MMC_DATA_WRITE &&
+ (mask & DWMCI_INTMSK_TXDR)) {
+ while (size) {
len = dwmci_readl(host, DWMCI_STATUS);
len = fifo_depth - ((len >>
DWMCI_FIFO_SHIFT) &
@@ -144,11 +145,11 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
for (i = 0; i < len; i++)
dwmci_writel(host, DWMCI_DATA,
*buf++);
- dwmci_writel(host, DWMCI_RINTSTS,
- DWMCI_INTMSK_TXDR);
+ size = size > len ? (size - len) : 0;
}
+ dwmci_writel(host, DWMCI_RINTSTS,
+ DWMCI_INTMSK_TXDR);
}
- size = size > len ? (size - len) : 0;
}
/* Data arrived correctly. */
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 43ea0bba76..0312da91af 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -21,6 +21,14 @@
#include <div64.h>
#include "mmc_private.h"
+static const unsigned int sd_au_size[] = {
+ 0, SZ_16K / 512, SZ_32K / 512,
+ SZ_64K / 512, SZ_128K / 512, SZ_256K / 512,
+ SZ_512K / 512, SZ_1M / 512, SZ_2M / 512,
+ SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512,
+ SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
+};
+
#ifndef CONFIG_DM_MMC_OPS
__weak int board_mmc_getwp(struct mmc *mmc)
{
@@ -945,6 +953,62 @@ retry_scr:
return 0;
}
+static int sd_read_ssr(struct mmc *mmc)
+{
+ int err, i;
+ struct mmc_cmd cmd;
+ ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
+ struct mmc_data data;
+ int timeout = 3;
+ unsigned int au, eo, et, es;
+
+ cmd.cmdidx = MMC_CMD_APP_CMD;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = mmc->rca << 16;
+
+ err = mmc_send_cmd(mmc, &cmd, NULL);
+ if (err)
+ return err;
+
+ cmd.cmdidx = SD_CMD_APP_SD_STATUS;
+ cmd.resp_type = MMC_RSP_R1;
+ cmd.cmdarg = 0;
+
+retry_ssr:
+ data.dest = (char *)ssr;
+ data.blocksize = 64;
+ data.blocks = 1;
+ data.flags = MMC_DATA_READ;
+
+ err = mmc_send_cmd(mmc, &cmd, &data);
+ if (err) {
+ if (timeout--)
+ goto retry_ssr;
+
+ return err;
+ }
+
+ for (i = 0; i < 16; i++)
+ ssr[i] = be32_to_cpu(ssr[i]);
+
+ au = (ssr[2] >> 12) & 0xF;
+ if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
+ mmc->ssr.au = sd_au_size[au];
+ es = (ssr[3] >> 24) & 0xFF;
+ es |= (ssr[2] & 0xFF) << 8;
+ et = (ssr[3] >> 18) & 0x3F;
+ if (es && et) {
+ eo = (ssr[3] >> 16) & 0x3;
+ mmc->ssr.erase_timeout = (et * 1000) / es;
+ mmc->ssr.erase_offset = eo * 1000;
+ }
+ } else {
+ debug("Invalid Allocation Unit Size.\n");
+ }
+
+ return 0;
+}
+
/* frequency bases */
/* divided by 10 to be nice to platforms without floating point */
static const int fbase[] = {
@@ -1350,6 +1414,10 @@ static int mmc_startup(struct mmc *mmc)
mmc_set_bus_width(mmc, 4);
}
+ err = sd_read_ssr(mmc);
+ if (err)
+ return err;
+
if (mmc->card_caps & MMC_MODE_HS)
mmc->tran_speed = 50000000;
else
diff --git a/drivers/mmc/mmc_write.c b/drivers/mmc/mmc_write.c
index 0f8b5c79d7..2289640375 100644
--- a/drivers/mmc/mmc_write.c
+++ b/drivers/mmc/mmc_write.c
@@ -100,8 +100,13 @@ unsigned long mmc_berase(struct blk_desc *block_dev, lbaint_t start,
& ~(mmc->erase_grp_size - 1)) - 1);
while (blk < blkcnt) {
- blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
- mmc->erase_grp_size : (blkcnt - blk);
+ if (IS_SD(mmc) && mmc->ssr.au) {
+ blk_r = ((blkcnt - blk) > mmc->ssr.au) ?
+ mmc->ssr.au : (blkcnt - blk);
+ } else {
+ blk_r = ((blkcnt - blk) > mmc->erase_grp_size) ?
+ mmc->erase_grp_size : (blkcnt - blk);
+ }
err = mmc_erase_t(mmc, start + blk, blk_r);
if (err)
break;
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 7ddb549e03..b2bf5a03fa 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -121,13 +121,10 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
* for card ready state.
* Every time when card is busy after timeout then (last) timeout value will be
* increased twice but only if it doesn't exceed global defined maximum.
- * Each function call will use last timeout value. Max timeout can be redefined
- * in board config file.
+ * Each function call will use last timeout value.
*/
-#ifndef CONFIG_SDHCI_CMD_MAX_TIMEOUT
-#define CONFIG_SDHCI_CMD_MAX_TIMEOUT 3200
-#endif
-#define CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT 100
+#define SDHCI_CMD_MAX_TIMEOUT 3200
+#define SDHCI_CMD_DEFAULT_TIMEOUT 100
#define SDHCI_READ_STATUS_TIMEOUT 1000
#ifdef CONFIG_DM_MMC_OPS
@@ -151,7 +148,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
unsigned start = get_timer(0);
/* Timeout unit - ms */
- static unsigned int cmd_timeout = CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT;
+ static unsigned int cmd_timeout = SDHCI_CMD_DEFAULT_TIMEOUT;
sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_STATUS);
mask = SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT;
@@ -164,7 +161,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) {
if (time >= cmd_timeout) {
printf("%s: MMC: %d busy ", __func__, mmc_dev);
- if (2 * cmd_timeout <= CONFIG_SDHCI_CMD_MAX_TIMEOUT) {
+ if (2 * cmd_timeout <= SDHCI_CMD_MAX_TIMEOUT) {
cmd_timeout += cmd_timeout;
printf("timeout increasing to: %u ms.\n",
cmd_timeout);
@@ -297,7 +294,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
{
struct sdhci_host *host = mmc->priv;
- unsigned int div, clk, timeout, reg;
+ unsigned int div, clk = 0, timeout, reg;
/* Wait max 20 ms */
timeout = 200;
@@ -321,14 +318,36 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
return 0;
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
- /* Version 3.00 divisors must be a multiple of 2. */
- if (mmc->cfg->f_max <= clock)
- div = 1;
- else {
- for (div = 2; div < SDHCI_MAX_DIV_SPEC_300; div += 2) {
- if ((mmc->cfg->f_max / div) <= clock)
+ /*
+ * Check if the Host Controller supports Programmable Clock
+ * Mode.
+ */
+ if (host->clk_mul) {
+ for (div = 1; div <= 1024; div++) {
+ if ((mmc->cfg->f_max * host->clk_mul / div)
+ <= clock)
break;
}
+
+ /*
+ * Set Programmable Clock Mode in the Clock
+ * Control register.
+ */
+ clk = SDHCI_PROG_CLOCK_MODE;
+ div--;
+ } else {
+ /* Version 3.00 divisors must be a multiple of 2. */
+ if (mmc->cfg->f_max <= clock) {
+ div = 1;
+ } else {
+ for (div = 2;
+ div < SDHCI_MAX_DIV_SPEC_300;
+ div += 2) {
+ if ((mmc->cfg->f_max / div) <= clock)
+ break;
+ }
+ }
+ div >>= 1;
}
} else {
/* Version 2.00 divisors must be a power of 2. */
@@ -336,13 +355,13 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
if ((mmc->cfg->f_max / div) <= clock)
break;
}
+ div >>= 1;
}
- div >>= 1;
if (host->set_clock)
host->set_clock(host->index, div);
- clk = (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
+ clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;
clk |= SDHCI_CLOCK_INT_EN;
@@ -451,6 +470,8 @@ static int sdhci_init(struct mmc *mmc)
{
struct sdhci_host *host = mmc->priv;
+ sdhci_reset(host, SDHCI_RESET_ALL);
+
if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && !aligned_buffer) {
aligned_buffer = memalign(8, 512*1024);
if (!aligned_buffer) {
@@ -514,9 +535,17 @@ static const struct mmc_ops sdhci_ops = {
int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
u32 max_clk, u32 min_clk)
{
- u32 caps;
+ u32 caps, caps_1;
caps = sdhci_readl(host, SDHCI_CAPABILITIES);
+
+#ifdef CONFIG_MMC_SDMA
+ if (!(caps & SDHCI_CAN_DO_SDMA)) {
+ printf("%s: Your controller doesn't support SDMA!!\n",
+ __func__);
+ return -EINVAL;
+ }
+#endif
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
cfg->name = host->name;
@@ -534,8 +563,11 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
SDHCI_CLOCK_BASE_SHIFT;
cfg->f_max *= 1000000;
}
- if (cfg->f_max == 0)
+ if (cfg->f_max == 0) {
+ printf("%s: Hardware doesn't specify base clock frequency\n",
+ __func__);
return -EINVAL;
+ }
if (min_clk)
cfg->f_min = min_clk;
else {
@@ -552,6 +584,9 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
if (caps & SDHCI_CAN_VDD_180)
cfg->voltages |= MMC_VDD_165_195;
+ if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
+ cfg->voltages |= host->voltages;
+
cfg->host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
if (caps & SDHCI_CAN_DO_8BIT)
@@ -564,6 +599,14 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+ /*
+ * In case of Host Controller v3.00, find out whether clock
+ * multiplier is supported.
+ */
+ caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
+ host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >>
+ SDHCI_CLOCK_MUL_SHIFT;
+
return 0;
}
@@ -575,27 +618,11 @@ int sdhci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg)
#else
int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
{
-#ifdef CONFIG_MMC_SDMA
- unsigned int caps;
-
- caps = sdhci_readl(host, SDHCI_CAPABILITIES);
- if (!(caps & SDHCI_CAN_DO_SDMA)) {
- printf("%s: Your controller doesn't support SDMA!!\n",
- __func__);
- return -1;
- }
-#endif
-
- if (sdhci_setup_cfg(&host->cfg, host, max_clk, min_clk)) {
- printf("%s: Hardware doesn't specify base clock frequency\n",
- __func__);
- return -EINVAL;
- }
+ int ret;
- if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
- host->cfg.voltages |= host->voltages;
-
- sdhci_reset(host, SDHCI_RESET_ALL);
+ ret = sdhci_setup_cfg(&host->cfg, host, max_clk, min_clk);
+ if (ret)
+ return ret;
host->mmc = mmc_create(&host->cfg, host);
if (host->mmc == NULL) {
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index be3ed73e52..302c005aa1 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -175,7 +175,7 @@ config XILINX_AXIEMAC
This MAC is present in Xilinx Microblaze, Zynq and ZynqMP SoCs.
config XILINX_EMACLITE
- depends on DM_ETH && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP)
+ depends on DM_ETH && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || MIPS)
select PHYLIB
select MII
bool "Xilinx Ethernetlite"
diff --git a/drivers/net/pch_gbe.c b/drivers/net/pch_gbe.c
index 137818b390..d40fff0e48 100644
--- a/drivers/net/pch_gbe.c
+++ b/drivers/net/pch_gbe.c
@@ -118,14 +118,14 @@ static void pch_gbe_rx_descs_init(struct udevice *dev)
memset(rx_desc, 0, sizeof(struct pch_gbe_rx_desc) * PCH_GBE_DESC_NUM);
for (i = 0; i < PCH_GBE_DESC_NUM; i++)
rx_desc->buffer_addr = dm_pci_phys_to_mem(priv->dev,
- (u32)(priv->rx_buff[i]));
+ (ulong)(priv->rx_buff[i]));
- writel(dm_pci_phys_to_mem(priv->dev, (u32)rx_desc),
+ writel(dm_pci_phys_to_mem(priv->dev, (ulong)rx_desc),
&mac_regs->rx_dsc_base);
writel(sizeof(struct pch_gbe_rx_desc) * (PCH_GBE_DESC_NUM - 1),
&mac_regs->rx_dsc_size);
- writel(dm_pci_phys_to_mem(priv->dev, (u32)(rx_desc + 1)),
+ writel(dm_pci_phys_to_mem(priv->dev, (ulong)(rx_desc + 1)),
&mac_regs->rx_dsc_sw_p);
}
@@ -137,11 +137,11 @@ static void pch_gbe_tx_descs_init(struct udevice *dev)
memset(tx_desc, 0, sizeof(struct pch_gbe_tx_desc) * PCH_GBE_DESC_NUM);
- writel(dm_pci_phys_to_mem(priv->dev, (u32)tx_desc),
+ writel(dm_pci_phys_to_mem(priv->dev, (ulong)tx_desc),
&mac_regs->tx_dsc_base);
writel(sizeof(struct pch_gbe_tx_desc) * (PCH_GBE_DESC_NUM - 1),
&mac_regs->tx_dsc_size);
- writel(dm_pci_phys_to_mem(priv->dev, (u32)(tx_desc + 1)),
+ writel(dm_pci_phys_to_mem(priv->dev, (ulong)(tx_desc + 1)),
&mac_regs->tx_dsc_sw_p);
}
@@ -251,7 +251,7 @@ static int pch_gbe_send(struct udevice *dev, void *packet, int length)
if (length < 64)
frame_ctrl |= PCH_GBE_TXD_CTRL_APAD;
- tx_desc->buffer_addr = dm_pci_phys_to_mem(priv->dev, (u32)packet);
+ tx_desc->buffer_addr = dm_pci_phys_to_mem(priv->dev, (ulong)packet);
tx_desc->length = length;
tx_desc->tx_words_eob = length + 3;
tx_desc->tx_frame_ctrl = frame_ctrl;
@@ -262,7 +262,7 @@ static int pch_gbe_send(struct udevice *dev, void *packet, int length)
if (++priv->tx_idx >= PCH_GBE_DESC_NUM)
priv->tx_idx = 0;
- writel(dm_pci_phys_to_mem(priv->dev, (u32)(tx_head + priv->tx_idx)),
+ writel(dm_pci_phys_to_mem(priv->dev, (ulong)(tx_head + priv->tx_idx)),
&mac_regs->tx_dsc_sw_p);
start = get_timer(0);
@@ -283,7 +283,7 @@ static int pch_gbe_recv(struct udevice *dev, int flags, uchar **packetp)
struct pch_gbe_priv *priv = dev_get_priv(dev);
struct pch_gbe_regs *mac_regs = priv->mac_regs;
struct pch_gbe_rx_desc *rx_desc;
- u32 hw_desc, buffer_addr, length;
+ ulong hw_desc, buffer_addr, length;
rx_desc = &priv->rx_desc[priv->rx_idx];
@@ -291,7 +291,7 @@ static int pch_gbe_recv(struct udevice *dev, int flags, uchar **packetp)
hw_desc = readl(&mac_regs->rx_dsc_hw_p_hld);
/* Just return if not receiving any packet */
- if ((u32)rx_desc == hw_desc)
+ if ((ulong)rx_desc == hw_desc)
return -EAGAIN;
buffer_addr = dm_pci_mem_to_phys(priv->dev, rx_desc->buffer_addr);
@@ -315,7 +315,7 @@ static int pch_gbe_free_pkt(struct udevice *dev, uchar *packet, int length)
if (++rx_swp >= PCH_GBE_DESC_NUM)
rx_swp = 0;
- writel(dm_pci_phys_to_mem(priv->dev, (u32)(rx_head + rx_swp)),
+ writel(dm_pci_phys_to_mem(priv->dev, (ulong)(rx_head + rx_swp)),
&mac_regs->rx_dsc_sw_p);
return 0;
@@ -421,7 +421,7 @@ int pch_gbe_probe(struct udevice *dev)
{
struct pch_gbe_priv *priv;
struct eth_pdata *plat = dev_get_platdata(dev);
- u32 iobase;
+ void *iobase;
/*
* The priv structure contains the descriptors and frame buffers which
@@ -432,11 +432,9 @@ int pch_gbe_probe(struct udevice *dev)
priv->dev = dev;
- dm_pci_read_config32(dev, PCI_BASE_ADDRESS_1, &iobase);
- iobase &= PCI_BASE_ADDRESS_MEM_MASK;
- iobase = dm_pci_mem_to_phys(dev, iobase);
+ iobase = dm_pci_map_bar(dev, PCI_BASE_ADDRESS_1, PCI_REGION_MEM);
- plat->iobase = iobase;
+ plat->iobase = (ulong)iobase;
priv->mac_regs = (struct pch_gbe_regs *)iobase;
/* Read MAC address from SROM and initialize dev->enetaddr with it */
diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c
index 7b85aa0463..d86e7a3954 100644
--- a/drivers/net/xilinx_emaclite.c
+++ b/drivers/net/xilinx_emaclite.c
@@ -19,6 +19,7 @@
#include <fdtdec.h>
#include <asm-generic/errno.h>
#include <linux/kernel.h>
+#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -154,7 +155,7 @@ static int wait_for_bit(const char *func, u32 *reg, const u32 mask,
unsigned long start = get_timer(0);
while (1) {
- val = readl(reg);
+ val = __raw_readl(reg);
if (!set)
val = ~val;
@@ -193,16 +194,17 @@ static u32 phyread(struct xemaclite *emaclite, u32 phyaddress, u32 registernum,
if (mdio_wait(regs))
return 1;
- u32 ctrl_reg = in_be32(&regs->mdioctrl);
- out_be32(&regs->mdioaddr, XEL_MDIOADDR_OP_MASK |
- ((phyaddress << XEL_MDIOADDR_PHYADR_SHIFT) | registernum));
- out_be32(&regs->mdioctrl, ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK);
+ u32 ctrl_reg = __raw_readl(&regs->mdioctrl);
+ __raw_writel(XEL_MDIOADDR_OP_MASK
+ | ((phyaddress << XEL_MDIOADDR_PHYADR_SHIFT)
+ | registernum), &regs->mdioaddr);
+ __raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK, &regs->mdioctrl);
if (mdio_wait(regs))
return 1;
/* Read data */
- *data = in_be32(&regs->mdiord);
+ *data = __raw_readl(&regs->mdiord);
return 0;
}
@@ -220,11 +222,12 @@ static u32 phywrite(struct xemaclite *emaclite, u32 phyaddress, u32 registernum,
* Data register. Finally, set the Status bit in the MDIO Control
* register to start a MDIO write transaction.
*/
- u32 ctrl_reg = in_be32(&regs->mdioctrl);
- out_be32(&regs->mdioaddr, ~XEL_MDIOADDR_OP_MASK &
- ((phyaddress << XEL_MDIOADDR_PHYADR_SHIFT) | registernum));
- out_be32(&regs->mdiowr, data);
- out_be32(&regs->mdioctrl, ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK);
+ u32 ctrl_reg = __raw_readl(&regs->mdioctrl);
+ __raw_writel(~XEL_MDIOADDR_OP_MASK
+ & ((phyaddress << XEL_MDIOADDR_PHYADR_SHIFT)
+ | registernum), &regs->mdioaddr);
+ __raw_writel(data, &regs->mdiowr);
+ __raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK, &regs->mdioctrl);
if (mdio_wait(regs))
return 1;
@@ -327,27 +330,27 @@ static int emaclite_start(struct udevice *dev)
* TX - TX_PING & TX_PONG initialization
*/
/* Restart PING TX */
- out_be32(&regs->tx_ping_tsr, 0);
+ __raw_writel(0, &regs->tx_ping_tsr);
/* Copy MAC address */
xemaclite_alignedwrite(pdata->enetaddr, &regs->tx_ping,
ENET_ADDR_LENGTH);
/* Set the length */
- out_be32(&regs->tx_ping_tplr, ENET_ADDR_LENGTH);
+ __raw_writel(ENET_ADDR_LENGTH, &regs->tx_ping_tplr);
/* Update the MAC address in the EMAC Lite */
- out_be32(&regs->tx_ping_tsr, XEL_TSR_PROG_MAC_ADDR);
+ __raw_writel(XEL_TSR_PROG_MAC_ADDR, &regs->tx_ping_tsr);
/* Wait for EMAC Lite to finish with the MAC address update */
- while ((in_be32 (&regs->tx_ping_tsr) &
+ while ((__raw_readl(&regs->tx_ping_tsr) &
XEL_TSR_PROG_MAC_ADDR) != 0)
;
if (emaclite->txpp) {
/* The same operation with PONG TX */
- out_be32(&regs->tx_pong_tsr, 0);
+ __raw_writel(0, &regs->tx_pong_tsr);
xemaclite_alignedwrite(pdata->enetaddr, &regs->tx_pong,
ENET_ADDR_LENGTH);
- out_be32(&regs->tx_pong_tplr, ENET_ADDR_LENGTH);
- out_be32(&regs->tx_pong_tsr, XEL_TSR_PROG_MAC_ADDR);
- while ((in_be32(&regs->tx_pong_tsr) &
+ __raw_writel(ENET_ADDR_LENGTH, &regs->tx_pong_tplr);
+ __raw_writel(XEL_TSR_PROG_MAC_ADDR, &regs->tx_pong_tsr);
+ while ((__raw_readl(&regs->tx_pong_tsr) &
XEL_TSR_PROG_MAC_ADDR) != 0)
;
}
@@ -356,13 +359,13 @@ static int emaclite_start(struct udevice *dev)
* RX - RX_PING & RX_PONG initialization
*/
/* Write out the value to flush the RX buffer */
- out_be32(&regs->rx_ping_rsr, XEL_RSR_RECV_IE_MASK);
+ __raw_writel(XEL_RSR_RECV_IE_MASK, &regs->rx_ping_rsr);
if (emaclite->rxpp)
- out_be32(&regs->rx_pong_rsr, XEL_RSR_RECV_IE_MASK);
+ __raw_writel(XEL_RSR_RECV_IE_MASK, &regs->rx_pong_rsr);
- out_be32(&regs->mdioctrl, XEL_MDIOCTRL_MDIOEN_MASK);
- if (in_be32(&regs->mdioctrl) & XEL_MDIOCTRL_MDIOEN_MASK)
+ __raw_writel(XEL_MDIOCTRL_MDIOEN_MASK, &regs->mdioctrl);
+ if (__raw_readl(&regs->mdioctrl) & XEL_MDIOCTRL_MDIOEN_MASK)
if (!setup_phy(dev))
return -1;
@@ -379,9 +382,9 @@ static int xemaclite_txbufferavailable(struct xemaclite *emaclite)
* Read the other buffer register
* and determine if the other buffer is available
*/
- tmp = ~in_be32(&regs->tx_ping_tsr);
+ tmp = ~__raw_readl(&regs->tx_ping_tsr);
if (emaclite->txpp)
- tmp |= ~in_be32(&regs->tx_pong_tsr);
+ tmp |= ~__raw_readl(&regs->tx_pong_tsr);
return !(tmp & XEL_TSR_XMIT_BUSY_MASK);
}
@@ -405,40 +408,42 @@ static int emaclite_send(struct udevice *dev, void *ptr, int len)
if (!maxtry) {
printf("Error: Timeout waiting for ethernet TX buffer\n");
/* Restart PING TX */
- out_be32(&regs->tx_ping_tsr, 0);
+ __raw_writel(0, &regs->tx_ping_tsr);
if (emaclite->txpp) {
- out_be32(&regs->tx_pong_tsr, 0);
+ __raw_writel(0, &regs->tx_pong_tsr);
}
return -1;
}
/* Determine if the expected buffer address is empty */
- reg = in_be32(&regs->tx_ping_tsr);
+ reg = __raw_readl(&regs->tx_ping_tsr);
if ((reg & XEL_TSR_XMIT_BUSY_MASK) == 0) {
debug("Send packet from tx_ping buffer\n");
/* Write the frame to the buffer */
xemaclite_alignedwrite(ptr, &regs->tx_ping, len);
- out_be32(&regs->tx_ping_tplr, len &
- (XEL_TPLR_LENGTH_MASK_HI | XEL_TPLR_LENGTH_MASK_LO));
- reg = in_be32(&regs->tx_ping_tsr);
+ __raw_writel(len
+ & (XEL_TPLR_LENGTH_MASK_HI | XEL_TPLR_LENGTH_MASK_LO),
+ &regs->tx_ping_tplr);
+ reg = __raw_readl(&regs->tx_ping_tsr);
reg |= XEL_TSR_XMIT_BUSY_MASK;
- out_be32(&regs->tx_ping_tsr, reg);
+ __raw_writel(reg, &regs->tx_ping_tsr);
return 0;
}
if (emaclite->txpp) {
/* Determine if the expected buffer address is empty */
- reg = in_be32(&regs->tx_pong_tsr);
+ reg = __raw_readl(&regs->tx_pong_tsr);
if ((reg & XEL_TSR_XMIT_BUSY_MASK) == 0) {
debug("Send packet from tx_pong buffer\n");
/* Write the frame to the buffer */
xemaclite_alignedwrite(ptr, &regs->tx_pong, len);
- out_be32(&regs->tx_pong_tplr, len &
+ __raw_writel(len &
(XEL_TPLR_LENGTH_MASK_HI |
- XEL_TPLR_LENGTH_MASK_LO));
- reg = in_be32(&regs->tx_pong_tsr);
+ XEL_TPLR_LENGTH_MASK_LO),
+ &regs->tx_pong_tplr);
+ reg = __raw_readl(&regs->tx_pong_tsr);
reg |= XEL_TSR_XMIT_BUSY_MASK;
- out_be32(&regs->tx_pong_tsr, reg);
+ __raw_writel(reg, &regs->tx_pong_tsr);
return 0;
}
}
@@ -458,7 +463,7 @@ static int emaclite_recv(struct udevice *dev, int flags, uchar **packetp)
try_again:
if (!emaclite->use_rx_pong_buffer_next) {
- reg = in_be32(&regs->rx_ping_rsr);
+ reg = __raw_readl(&regs->rx_ping_rsr);
debug("Testing data at rx_ping\n");
if ((reg & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
debug("Data found in rx_ping buffer\n");
@@ -478,7 +483,7 @@ try_again:
goto try_again;
}
} else {
- reg = in_be32(&regs->rx_pong_rsr);
+ reg = __raw_readl(&regs->rx_pong_rsr);
debug("Testing data at rx_pong\n");
if ((reg & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
debug("Data found in rx_pong buffer\n");
@@ -525,9 +530,9 @@ try_again:
length - first_read);
/* Acknowledge the frame */
- reg = in_be32(ack);
+ reg = __raw_readl(ack);
reg &= ~XEL_RSR_RECV_DONE_MASK;
- out_be32(ack, reg);
+ __raw_writel(reg, ack);
debug("Packet receive from 0x%p, length %dB\n", addr, length);
*packetp = etherrxbuff;
@@ -595,7 +600,8 @@ static int emaclite_ofdata_to_platdata(struct udevice *dev)
int offset = 0;
pdata->iobase = (phys_addr_t)dev_get_addr(dev);
- emaclite->regs = (struct emaclite_regs *)pdata->iobase;
+ emaclite->regs = (struct emaclite_regs *)ioremap_nocache(pdata->iobase,
+ 0x10000);
emaclite->phyaddr = -1;
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 669e37bb5d..9a7c187446 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -39,4 +39,11 @@ config PCI_TEGRA
with a total of 5 lanes. Some boards require this for Ethernet
support to work (e.g. beaver, jetson-tk1).
+config PCI_XILINX
+ bool "Xilinx AXI Bridge for PCI Express"
+ depends on DM_PCI
+ help
+ Enable support for the Xilinx AXI bridge for PCI express, an IP block
+ which can be used on some generations of Xilinx FPGAs.
+
endmenu
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index f8be9bf1ea..9583e91ceb 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -31,3 +31,4 @@ obj-$(CONFIG_PCI_TEGRA) += pci_tegra.o
obj-$(CONFIG_TSI108_PCI) += tsi108_pci.o
obj-$(CONFIG_WINBOND_83C553) += w83c553f.o
obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape.o
+obj-$(CONFIG_PCI_XILINX) += pcie_xilinx.o
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index 342b78c0c4..3b00e6a41b 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -837,7 +837,7 @@ static int pci_uclass_pre_probe(struct udevice *bus)
hose = bus->uclass_priv;
/* For bridges, use the top-level PCI controller */
- if (device_get_uclass_id(bus->parent) == UCLASS_ROOT) {
+ if (!device_is_on_pci_bus(bus)) {
hose->ctlr = bus;
ret = decode_regions(hose, gd->fdt_blob, bus->parent->of_offset,
bus->of_offset);
diff --git a/drivers/pci/pcie_xilinx.c b/drivers/pci/pcie_xilinx.c
new file mode 100644
index 0000000000..521600180e
--- /dev/null
+++ b/drivers/pci/pcie_xilinx.c
@@ -0,0 +1,220 @@
+/*
+ * Xilinx AXI Bridge for PCI Express Driver
+ *
+ * Copyright (C) 2016 Imagination Technologies
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <pci.h>
+
+#include <asm/io.h>
+
+/**
+ * struct xilinx_pcie - Xilinx PCIe controller state
+ * @hose: The parent classes PCI controller state
+ * @cfg_base: The base address of memory mapped configuration space
+ */
+struct xilinx_pcie {
+ struct pci_controller hose;
+ void *cfg_base;
+};
+
+/* Register definitions */
+#define XILINX_PCIE_REG_PSCR 0x144
+#define XILINX_PCIE_REG_PSCR_LNKUP BIT(11)
+
+/**
+ * pcie_xilinx_link_up() - Check whether the PCIe link is up
+ * @pcie: Pointer to the PCI controller state
+ *
+ * Checks whether the PCIe link for the given device is up or down.
+ *
+ * Return: true if the link is up, else false
+ */
+static bool pcie_xilinx_link_up(struct xilinx_pcie *pcie)
+{
+ uint32_t pscr = __raw_readl(pcie->cfg_base + XILINX_PCIE_REG_PSCR);
+
+ return pscr & XILINX_PCIE_REG_PSCR_LNKUP;
+}
+
+/**
+ * pcie_xilinx_config_address() - Calculate the address of a config access
+ * @pcie: Pointer to the PCI controller state
+ * @bdf: Identifies the PCIe device to access
+ * @offset: The offset into the device's configuration space
+ * @paddress: Pointer to the pointer to write the calculates address to
+ *
+ * Calculates the address that should be accessed to perform a PCIe
+ * configuration space access for a given device identified by the PCIe
+ * controller device @pcie and the bus, device & function numbers in @bdf. If
+ * access to the device is not valid then the function will return an error
+ * code. Otherwise the address to access will be written to the pointer pointed
+ * to by @paddress.
+ *
+ * Return: 0 on success, else -ENODEV
+ */
+static int pcie_xilinx_config_address(struct xilinx_pcie *pcie, pci_dev_t bdf,
+ uint offset, void **paddress)
+{
+ unsigned int bus = PCI_BUS(bdf);
+ unsigned int dev = PCI_DEV(bdf);
+ unsigned int func = PCI_FUNC(bdf);
+ void *addr;
+
+ if ((bus > 0) && !pcie_xilinx_link_up(pcie))
+ return -ENODEV;
+
+ /*
+ * Busses 0 (host-PCIe bridge) & 1 (its immediate child) are
+ * limited to a single device each.
+ */
+ if ((bus < 2) && (dev > 0))
+ return -ENODEV;
+
+ addr = pcie->cfg_base;
+ addr += bus << 20;
+ addr += dev << 15;
+ addr += func << 12;
+ addr += offset;
+ *paddress = addr;
+
+ return 0;
+}
+
+/**
+ * pcie_xilinx_read_config() - Read from configuration space
+ * @pcie: Pointer to the PCI controller state
+ * @bdf: Identifies the PCIe device to access
+ * @offset: The offset into the device's configuration space
+ * @valuep: A pointer at which to store the read value
+ * @size: Indicates the size of access to perform
+ *
+ * Read a value of size @size from offset @offset within the configuration
+ * space of the device identified by the bus, device & function numbers in @bdf
+ * on the PCI bus @bus.
+ *
+ * Return: 0 on success, else -ENODEV or -EINVAL
+ */
+static int pcie_xilinx_read_config(struct udevice *bus, pci_dev_t bdf,
+ uint offset, ulong *valuep,
+ enum pci_size_t size)
+{
+ struct xilinx_pcie *pcie = dev_get_priv(bus);
+ void *address;
+ int err;
+
+ err = pcie_xilinx_config_address(pcie, bdf, offset, &address);
+ if (err < 0) {
+ *valuep = pci_get_ff(size);
+ return 0;
+ }
+
+ switch (size) {
+ case PCI_SIZE_8:
+ *valuep = __raw_readb(address);
+ return 0;
+ case PCI_SIZE_16:
+ *valuep = __raw_readw(address);
+ return 0;
+ case PCI_SIZE_32:
+ *valuep = __raw_readl(address);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * pcie_xilinx_write_config() - Write to configuration space
+ * @pcie: Pointer to the PCI controller state
+ * @bdf: Identifies the PCIe device to access
+ * @offset: The offset into the device's configuration space
+ * @value: The value to write
+ * @size: Indicates the size of access to perform
+ *
+ * Write the value @value of size @size from offset @offset within the
+ * configuration space of the device identified by the bus, device & function
+ * numbers in @bdf on the PCI bus @bus.
+ *
+ * Return: 0 on success, else -ENODEV or -EINVAL
+ */
+static int pcie_xilinx_write_config(struct udevice *bus, pci_dev_t bdf,
+ uint offset, ulong value,
+ enum pci_size_t size)
+{
+ struct xilinx_pcie *pcie = dev_get_priv(bus);
+ void *address;
+ int err;
+
+ err = pcie_xilinx_config_address(pcie, bdf, offset, &address);
+ if (err < 0)
+ return 0;
+
+ switch (size) {
+ case PCI_SIZE_8:
+ __raw_writeb(value, address);
+ return 0;
+ case PCI_SIZE_16:
+ __raw_writew(value, address);
+ return 0;
+ case PCI_SIZE_32:
+ __raw_writel(value, address);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * pcie_xilinx_ofdata_to_platdata() - Translate from DT to device state
+ * @dev: A pointer to the device being operated on
+ *
+ * Translate relevant data from the device tree pertaining to device @dev into
+ * state that the driver will later make use of. This state is stored in the
+ * device's private data structure.
+ *
+ * Return: 0 on success, else -EINVAL
+ */
+static int pcie_xilinx_ofdata_to_platdata(struct udevice *dev)
+{
+ struct xilinx_pcie *pcie = dev_get_priv(dev);
+ struct fdt_resource reg_res;
+ DECLARE_GLOBAL_DATA_PTR;
+ int err;
+
+ err = fdt_get_resource(gd->fdt_blob, dev->of_offset, "reg",
+ 0, &reg_res);
+ if (err < 0) {
+ error("\"reg\" resource not found\n");
+ return err;
+ }
+
+ pcie->cfg_base = map_physmem(reg_res.start,
+ fdt_resource_size(&reg_res),
+ MAP_NOCACHE);
+
+ return 0;
+}
+
+static const struct dm_pci_ops pcie_xilinx_ops = {
+ .read_config = pcie_xilinx_read_config,
+ .write_config = pcie_xilinx_write_config,
+};
+
+static const struct udevice_id pcie_xilinx_ids[] = {
+ { .compatible = "xlnx,axi-pcie-host-1.00.a" },
+ { }
+};
+
+U_BOOT_DRIVER(pcie_xilinx) = {
+ .name = "pcie_xilinx",
+ .id = UCLASS_PCI,
+ .of_match = pcie_xilinx_ids,
+ .ops = &pcie_xilinx_ops,
+ .ofdata_to_platdata = pcie_xilinx_ofdata_to_platdata,
+ .priv_auto_alloc_size = sizeof(struct xilinx_pcie),
+};
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 88fca15357..3f6ea4d275 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -5,6 +5,7 @@
*/
#include <common.h>
+#include <clk.h>
#include <dm.h>
#include <errno.h>
#include <fdtdec.h>
@@ -352,6 +353,8 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
{
struct ns16550_platdata *plat = dev->platdata;
fdt_addr_t addr;
+ struct clk clk;
+ int err;
/* try Processor Local Bus device first */
addr = dev_get_addr(dev);
@@ -397,9 +400,21 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
"reg-offset", 0);
plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"reg-shift", 0);
- plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
- "clock-frequency",
- CONFIG_SYS_NS16550_CLK);
+
+ err = clk_get_by_index(dev, 0, &clk);
+ if (!err) {
+ err = clk_get_rate(&clk);
+ if (!IS_ERR_VALUE(err))
+ plat->clock = err;
+ } else if (err != -ENODEV && err != -ENOSYS) {
+ debug("ns16550 failed to get clock\n");
+ return err;
+ }
+
+ if (!plat->clock)
+ plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+ "clock-frequency",
+ CONFIG_SYS_NS16550_CLK);
if (!plat->clock) {
debug("ns16550 clock not defined\n");
return -EINVAL;
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-28 10:26:53 +0000