[U-Boot] [PATCH v2 05/16] dtoc: Add support for 32 or 64-bit addresses
Simon Glass
sjg at chromium.org
Tue Aug 29 20:15:50 UTC 2017
When using 32-bit addresses dtoc works correctly. For 64-bit addresses it
does not since it ignores the #address-cells and #size-cells properties.
Update the tool to use fdt64_t as the element type for reg properties when
either the address or size is larger than one cell. Use the correct value
so that C code can obtain the information from the device tree easily.
Alos create a new type, fdt_val_t, which is defined to either fdt32_t or
fdt64_t depending on the word size of the machine. This type corresponds
to fdt_addr_t and fdt_size_t. Unfortunately we cannot just use those types
since they are defined to phys_addr_t and phys_size_t which use
'unsigned long' in the 32-bit case, rather than 'unsigned int'.
Add tests for the four combinations of address and size values (32/32,
64/64, 32/64, 64/32). Also update existing uses for rk3399 and rk3368
which now need to use the new fdt_val_t type.
Signed-off-by: Simon Glass <sjg at chromium.org>
Suggested-by: Heiko Stuebner <heiko at sntech.de>
Reported-by: Kever Yang <kever.yang at rock-chips.com>
---
Changes in v2:
- Support 'reg' properties with a single cell (e.g. #size-cells = 0)
- Introduce an fdt_val_t type which is either 32- or 64-bits long
- Update rk3368 and rk3399 uses
- Drop review tags since there are significant changes in this patch
drivers/clk/rockchip/clk_rk3368.c | 2 +-
drivers/clk/rockchip/clk_rk3399.c | 4 +-
drivers/core/regmap.c | 2 +-
include/fdtdec.h | 2 +
include/regmap.h | 2 +-
include/syscon.h | 6 +-
tools/dtoc/dtb_platdata.py | 61 +++++++++++
tools/dtoc/dtoc_test_addr32.dts | 27 +++++
tools/dtoc/dtoc_test_addr32_64.dts | 33 ++++++
tools/dtoc/dtoc_test_addr64.dts | 33 ++++++
tools/dtoc/dtoc_test_addr64_32.dts | 33 ++++++
tools/dtoc/fdt_util.py | 2 +
tools/dtoc/test_dtoc.py | 212 +++++++++++++++++++++++++++++++++++++
13 files changed, 413 insertions(+), 6 deletions(-)
create mode 100644 tools/dtoc/dtoc_test_addr32.dts
create mode 100644 tools/dtoc/dtoc_test_addr32_64.dts
create mode 100644 tools/dtoc/dtoc_test_addr64.dts
create mode 100644 tools/dtoc/dtoc_test_addr64_32.dts
diff --git a/drivers/clk/rockchip/clk_rk3368.c b/drivers/clk/rockchip/clk_rk3368.c
index 2be1f572d7..0160d50c03 100644
--- a/drivers/clk/rockchip/clk_rk3368.c
+++ b/drivers/clk/rockchip/clk_rk3368.c
@@ -471,7 +471,7 @@ static int rk3368_clk_probe(struct udevice *dev)
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct rk3368_clk_plat *plat = dev_get_platdata(dev);
- priv->cru = map_sysmem(plat->dtd.reg[1], plat->dtd.reg[3]);
+ priv->cru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]);
#endif
#if IS_ENABLED(CONFIG_SPL_BUILD) || IS_ENABLED(CONFIG_TPL_BUILD)
rkclk_init(priv->cru);
diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c
index 3edafea140..0de3db620d 100644
--- a/drivers/clk/rockchip/clk_rk3399.c
+++ b/drivers/clk/rockchip/clk_rk3399.c
@@ -963,7 +963,7 @@ static int rk3399_clk_probe(struct udevice *dev)
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct rk3399_clk_plat *plat = dev_get_platdata(dev);
- priv->cru = map_sysmem(plat->dtd.reg[1], plat->dtd.reg[3]);
+ priv->cru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[0]);
#endif
rkclk_init(priv->cru);
#endif
@@ -1145,7 +1145,7 @@ static int rk3399_pmuclk_probe(struct udevice *dev)
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct rk3399_pmuclk_plat *plat = dev_get_platdata(dev);
- priv->pmucru = map_sysmem(plat->dtd.reg[1], plat->dtd.reg[3]);
+ priv->pmucru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]);
#endif
#ifndef CONFIG_SPL_BUILD
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index d4e16a27ef..0f1d30820c 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -40,7 +40,7 @@ static struct regmap *regmap_alloc_count(int count)
}
#if CONFIG_IS_ENABLED(OF_PLATDATA)
-int regmap_init_mem_platdata(struct udevice *dev, u32 *reg, int count,
+int regmap_init_mem_platdata(struct udevice *dev, fdt_val_t *reg, int count,
struct regmap **mapp)
{
struct regmap_range *range;
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 4a0947c626..1ba02be8e1 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -27,10 +27,12 @@ typedef phys_size_t fdt_size_t;
#define FDT_ADDR_T_NONE (-1ULL)
#define fdt_addr_to_cpu(reg) be64_to_cpu(reg)
#define fdt_size_to_cpu(reg) be64_to_cpu(reg)
+typedef fdt64_t fdt_val_t;
#else
#define FDT_ADDR_T_NONE (-1U)
#define fdt_addr_to_cpu(reg) be32_to_cpu(reg)
#define fdt_size_to_cpu(reg) be32_to_cpu(reg)
+typedef fdt32_t fdt_val_t;
#endif
/* Information obtained about memory from the FDT */
diff --git a/include/regmap.h b/include/regmap.h
index 1eed94e47a..493a5d8eff 100644
--- a/include/regmap.h
+++ b/include/regmap.h
@@ -69,7 +69,7 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp);
* @count: Number of pairs (e.g. 1 if the regmap has a single entry)
* @mapp: Returns allocated map
*/
-int regmap_init_mem_platdata(struct udevice *dev, u32 *reg, int count,
+int regmap_init_mem_platdata(struct udevice *dev, fdt_val_t *reg, int count,
struct regmap **mapp);
/**
diff --git a/include/syscon.h b/include/syscon.h
index 34842aa470..5d52b1cc3c 100644
--- a/include/syscon.h
+++ b/include/syscon.h
@@ -8,6 +8,8 @@
#ifndef __SYSCON_H
#define __SYSCON_H
+#include <fdtdec.h>
+
/**
* struct syscon_uc_info - Information stored by the syscon UCLASS_UCLASS
*
@@ -28,9 +30,11 @@ struct syscon_ops {
* We don't support 64-bit machines. If they are so resource-contrained that
* they need to use OF_PLATDATA, something is horribly wrong with the
* education of our hardware engineers.
+ *
+ * Update: 64-bit is now supported and we have an education crisis.
*/
struct syscon_base_platdata {
- u32 reg[2];
+ fdt_val_t reg[2];
};
#endif
diff --git a/tools/dtoc/dtb_platdata.py b/tools/dtoc/dtb_platdata.py
index 3243bccfe8..0c719310b1 100644
--- a/tools/dtoc/dtb_platdata.py
+++ b/tools/dtoc/dtb_platdata.py
@@ -242,6 +242,66 @@ class DtbPlatdata(object):
self._valid_nodes = []
return self.scan_node(self._fdt.GetRoot())
+ @staticmethod
+ def get_num_cells(node):
+ """Get the number of cells in addresses and sizes for this node
+
+ Args:
+ node: Node to check
+
+ Returns:
+ Tuple:
+ Number of address cells for this node
+ Number of size cells for this node
+ """
+ parent = node.parent
+ na, ns = 2, 2
+ if parent:
+ na_prop = parent.props.get('#address-cells')
+ ns_prop = parent.props.get('#size-cells')
+ if na_prop:
+ na = fdt_util.fdt32_to_cpu(na_prop.value)
+ if ns_prop:
+ ns = fdt_util.fdt32_to_cpu(ns_prop.value)
+ return na, ns
+
+ def scan_reg_sizes(self):
+ """Scan for 64-bit 'reg' properties and update the values
+
+ This finds 'reg' properties with 64-bit data and converts the value to
+ an array of 64-values. This allows it to be output in a way that the
+ C code can read.
+ """
+ for node in self._valid_nodes:
+ reg = node.props.get('reg')
+ if not reg:
+ continue
+ na, ns = self.get_num_cells(node)
+ total = na + ns
+
+ if reg.type != fdt.TYPE_INT:
+ raise ValueError("Node '%s' reg property is not an int")
+ if len(reg.value) % total:
+ raise ValueError("Node '%s' reg property has %d cells "
+ 'which is not a multiple of na + ns = %d + %d)' %
+ (node.name, len(reg.value), na, ns))
+ reg.na = na
+ reg.ns = ns
+ if na != 1 or ns != 1:
+ reg.type = fdt.TYPE_INT64
+ i = 0
+ new_value = []
+ val = reg.value
+ if not isinstance(val, list):
+ val = [val]
+ while i < len(val):
+ addr = fdt_util.fdt_cells_to_cpu(val[i:], reg.na)
+ i += na
+ size = fdt_util.fdt_cells_to_cpu(val[i:], reg.ns)
+ i += ns
+ new_value += [addr, size]
+ reg.value = new_value
+
def scan_structs(self):
"""Scan the device tree building up the C structures we will use.
@@ -450,6 +510,7 @@ def run_steps(args, dtb_file, include_disabled, output):
plat = DtbPlatdata(dtb_file, include_disabled)
plat.scan_dtb()
plat.scan_tree()
+ plat.scan_reg_sizes()
plat.setup_output(output)
structs = plat.scan_structs()
plat.scan_phandles()
diff --git a/tools/dtoc/dtoc_test_addr32.dts b/tools/dtoc/dtoc_test_addr32.dts
new file mode 100644
index 0000000000..bcfdcae10b
--- /dev/null
+++ b/tools/dtoc/dtoc_test_addr32.dts
@@ -0,0 +1,27 @@
+/*
+ * Test device tree file for dtoc
+ *
+ * Copyright 2017 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+ /dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ test1 {
+ u-boot,dm-pre-reloc;
+ compatible = "test1";
+ reg = <0x1234 0x5678>;
+ };
+
+ test2 {
+ u-boot,dm-pre-reloc;
+ compatible = "test2";
+ reg = <0x12345678 0x98765432 2 3>;
+ };
+
+};
diff --git a/tools/dtoc/dtoc_test_addr32_64.dts b/tools/dtoc/dtoc_test_addr32_64.dts
new file mode 100644
index 0000000000..1c96243310
--- /dev/null
+++ b/tools/dtoc/dtoc_test_addr32_64.dts
@@ -0,0 +1,33 @@
+/*
+ * Test device tree file for dtoc
+ *
+ * Copyright 2017 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+ /dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <2>;
+
+ test1 {
+ u-boot,dm-pre-reloc;
+ compatible = "test1";
+ reg = <0x1234 0x5678 0x0>;
+ };
+
+ test2 {
+ u-boot,dm-pre-reloc;
+ compatible = "test2";
+ reg = <0x12345678 0x98765432 0x10987654>;
+ };
+
+ test3 {
+ u-boot,dm-pre-reloc;
+ compatible = "test3";
+ reg = <0x12345678 0x98765432 0x10987654 2 0 3>;
+ };
+
+};
diff --git a/tools/dtoc/dtoc_test_addr64.dts b/tools/dtoc/dtoc_test_addr64.dts
new file mode 100644
index 0000000000..4c0ad0ec36
--- /dev/null
+++ b/tools/dtoc/dtoc_test_addr64.dts
@@ -0,0 +1,33 @@
+/*
+ * Test device tree file for dtoc
+ *
+ * Copyright 2017 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+ /dts-v1/;
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ test1 {
+ u-boot,dm-pre-reloc;
+ compatible = "test1";
+ reg = /bits/ 64 <0x1234 0x5678>;
+ };
+
+ test2 {
+ u-boot,dm-pre-reloc;
+ compatible = "test2";
+ reg = /bits/ 64 <0x1234567890123456 0x9876543210987654>;
+ };
+
+ test3 {
+ u-boot,dm-pre-reloc;
+ compatible = "test3";
+ reg = /bits/ 64 <0x1234567890123456 0x9876543210987654 2 3>;
+ };
+
+};
diff --git a/tools/dtoc/dtoc_test_addr64_32.dts b/tools/dtoc/dtoc_test_addr64_32.dts
new file mode 100644
index 0000000000..c36f6b726e
--- /dev/null
+++ b/tools/dtoc/dtoc_test_addr64_32.dts
@@ -0,0 +1,33 @@
+/*
+ * Test device tree file for dtoc
+ *
+ * Copyright 2017 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+ /dts-v1/;
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ test1 {
+ u-boot,dm-pre-reloc;
+ compatible = "test1";
+ reg = <0x1234 0x0 0x5678>;
+ };
+
+ test2 {
+ u-boot,dm-pre-reloc;
+ compatible = "test2";
+ reg = <0x12345678 0x90123456 0x98765432>;
+ };
+
+ test3 {
+ u-boot,dm-pre-reloc;
+ compatible = "test3";
+ reg = <0x12345678 0x90123456 0x98765432 0 2 3>;
+ };
+
+};
diff --git a/tools/dtoc/fdt_util.py b/tools/dtoc/fdt_util.py
index bec6ee947a..338d47a5e1 100644
--- a/tools/dtoc/fdt_util.py
+++ b/tools/dtoc/fdt_util.py
@@ -38,6 +38,8 @@ def fdt_cells_to_cpu(val, cells):
Return:
A native-endian long value
"""
+ if not cells:
+ return 0
out = long(fdt32_to_cpu(val[0]))
if cells == 2:
out = out << 32 | fdt32_to_cpu(val[1])
diff --git a/tools/dtoc/test_dtoc.py b/tools/dtoc/test_dtoc.py
index 5040f23325..09cfddaaaa 100644
--- a/tools/dtoc/test_dtoc.py
+++ b/tools/dtoc/test_dtoc.py
@@ -270,4 +270,216 @@ U_BOOT_DEVICE(spl_test) = {
\t.platdata_size\t= sizeof(dtv_spl_test),
};
+''', data)
+
+ def test_addresses64(self):
+ """Test output from a node with a 'reg' property with na=2, ns=2"""
+ dtb_file = get_dtb_file('dtoc_test_addr64.dts')
+ output = tools.GetOutputFilename('output')
+ dtb_platdata.run_steps(['struct'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <stdbool.h>
+#include <libfdt.h>
+struct dtd_test1 {
+\tfdt64_t\t\treg[2];
+};
+struct dtd_test2 {
+\tfdt64_t\t\treg[2];
+};
+struct dtd_test3 {
+\tfdt64_t\t\treg[4];
+};
+''', data)
+
+ dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <common.h>
+#include <dm.h>
+#include <dt-structs.h>
+
+static struct dtd_test1 dtv_test1 = {
+\t.reg\t\t\t= {0x1234, 0x5678},
+};
+U_BOOT_DEVICE(test1) = {
+\t.name\t\t= "test1",
+\t.platdata\t= &dtv_test1,
+\t.platdata_size\t= sizeof(dtv_test1),
+};
+
+static struct dtd_test2 dtv_test2 = {
+\t.reg\t\t\t= {0x1234567890123456, 0x9876543210987654},
+};
+U_BOOT_DEVICE(test2) = {
+\t.name\t\t= "test2",
+\t.platdata\t= &dtv_test2,
+\t.platdata_size\t= sizeof(dtv_test2),
+};
+
+static struct dtd_test3 dtv_test3 = {
+\t.reg\t\t\t= {0x1234567890123456, 0x9876543210987654, 0x2, 0x3},
+};
+U_BOOT_DEVICE(test3) = {
+\t.name\t\t= "test3",
+\t.platdata\t= &dtv_test3,
+\t.platdata_size\t= sizeof(dtv_test3),
+};
+
+''', data)
+
+ def test_addresses32(self):
+ """Test output from a node with a 'reg' property with na=1, ns=1"""
+ dtb_file = get_dtb_file('dtoc_test_addr32.dts')
+ output = tools.GetOutputFilename('output')
+ dtb_platdata.run_steps(['struct'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <stdbool.h>
+#include <libfdt.h>
+struct dtd_test1 {
+\tfdt32_t\t\treg[2];
+};
+struct dtd_test2 {
+\tfdt32_t\t\treg[4];
+};
+''', data)
+
+ dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <common.h>
+#include <dm.h>
+#include <dt-structs.h>
+
+static struct dtd_test1 dtv_test1 = {
+\t.reg\t\t\t= {0x1234, 0x5678},
+};
+U_BOOT_DEVICE(test1) = {
+\t.name\t\t= "test1",
+\t.platdata\t= &dtv_test1,
+\t.platdata_size\t= sizeof(dtv_test1),
+};
+
+static struct dtd_test2 dtv_test2 = {
+\t.reg\t\t\t= {0x12345678, 0x98765432, 0x2, 0x3},
+};
+U_BOOT_DEVICE(test2) = {
+\t.name\t\t= "test2",
+\t.platdata\t= &dtv_test2,
+\t.platdata_size\t= sizeof(dtv_test2),
+};
+
+''', data)
+
+ def test_addresses64_32(self):
+ """Test output from a node with a 'reg' property with na=2, ns=1"""
+ dtb_file = get_dtb_file('dtoc_test_addr64_32.dts')
+ output = tools.GetOutputFilename('output')
+ dtb_platdata.run_steps(['struct'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <stdbool.h>
+#include <libfdt.h>
+struct dtd_test1 {
+\tfdt64_t\t\treg[2];
+};
+struct dtd_test2 {
+\tfdt64_t\t\treg[2];
+};
+struct dtd_test3 {
+\tfdt64_t\t\treg[4];
+};
+''', data)
+
+ dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <common.h>
+#include <dm.h>
+#include <dt-structs.h>
+
+static struct dtd_test1 dtv_test1 = {
+\t.reg\t\t\t= {0x123400000000, 0x5678},
+};
+U_BOOT_DEVICE(test1) = {
+\t.name\t\t= "test1",
+\t.platdata\t= &dtv_test1,
+\t.platdata_size\t= sizeof(dtv_test1),
+};
+
+static struct dtd_test2 dtv_test2 = {
+\t.reg\t\t\t= {0x1234567890123456, 0x98765432},
+};
+U_BOOT_DEVICE(test2) = {
+\t.name\t\t= "test2",
+\t.platdata\t= &dtv_test2,
+\t.platdata_size\t= sizeof(dtv_test2),
+};
+
+static struct dtd_test3 dtv_test3 = {
+\t.reg\t\t\t= {0x1234567890123456, 0x98765432, 0x2, 0x3},
+};
+U_BOOT_DEVICE(test3) = {
+\t.name\t\t= "test3",
+\t.platdata\t= &dtv_test3,
+\t.platdata_size\t= sizeof(dtv_test3),
+};
+
+''', data)
+
+ def test_addresses32_64(self):
+ """Test output from a node with a 'reg' property with na=1, ns=2"""
+ dtb_file = get_dtb_file('dtoc_test_addr32_64.dts')
+ output = tools.GetOutputFilename('output')
+ dtb_platdata.run_steps(['struct'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <stdbool.h>
+#include <libfdt.h>
+struct dtd_test1 {
+\tfdt64_t\t\treg[2];
+};
+struct dtd_test2 {
+\tfdt64_t\t\treg[2];
+};
+struct dtd_test3 {
+\tfdt64_t\t\treg[4];
+};
+''', data)
+
+ dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
+ with open(output) as infile:
+ data = infile.read()
+ self.assertEqual('''#include <common.h>
+#include <dm.h>
+#include <dt-structs.h>
+
+static struct dtd_test1 dtv_test1 = {
+\t.reg\t\t\t= {0x1234, 0x567800000000},
+};
+U_BOOT_DEVICE(test1) = {
+\t.name\t\t= "test1",
+\t.platdata\t= &dtv_test1,
+\t.platdata_size\t= sizeof(dtv_test1),
+};
+
+static struct dtd_test2 dtv_test2 = {
+\t.reg\t\t\t= {0x12345678, 0x9876543210987654},
+};
+U_BOOT_DEVICE(test2) = {
+\t.name\t\t= "test2",
+\t.platdata\t= &dtv_test2,
+\t.platdata_size\t= sizeof(dtv_test2),
+};
+
+static struct dtd_test3 dtv_test3 = {
+\t.reg\t\t\t= {0x12345678, 0x9876543210987654, 0x2, 0x3},
+};
+U_BOOT_DEVICE(test3) = {
+\t.name\t\t= "test3",
+\t.platdata\t= &dtv_test3,
+\t.platdata_size\t= sizeof(dtv_test3),
+};
+
''', data)
--
2.14.1.342.g6490525c54-goog
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