[U-Boot] [PATCH 09/13] serial: Remove DM_FLAG_PRE_RELOC flag in various drivers
Bin Meng
bmeng.cn at gmail.com
Wed Oct 24 13:36:36 UTC 2018
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---
drivers/serial/altera_jtag_uart.c | 1 -
drivers/serial/altera_uart.c | 1 -
drivers/serial/arm_dcc.c | 1 -
drivers/serial/atmel_usart.c | 2 ++
drivers/serial/ns16550.c | 2 ++
drivers/serial/serial_ar933x.c | 1 -
drivers/serial/serial_arc.c | 1 -
drivers/serial/serial_bcm283x_mu.c | 2 ++
drivers/serial/serial_bcm283x_pl011.c | 2 ++
drivers/serial/serial_bcm6345.c | 1 -
drivers/serial/serial_efi.c | 1 -
drivers/serial/serial_intel_mid.c | 1 -
drivers/serial/serial_lpuart.c | 1 -
drivers/serial/serial_meson.c | 1 -
drivers/serial/serial_mvebu_a3700.c | 1 -
drivers/serial/serial_mxc.c | 2 ++
drivers/serial/serial_omap.c | 2 ++
drivers/serial/serial_owl.c | 1 -
drivers/serial/serial_pic32.c | 1 -
drivers/serial/serial_pl01x.c | 2 ++
drivers/serial/serial_s5p.c | 1 -
drivers/serial/serial_sh.c | 2 ++
drivers/serial/serial_sti_asc.c | 1 -
drivers/serial/serial_stm32.c | 2 ++
drivers/serial/serial_xuartlite.c | 1 -
drivers/serial/serial_zynq.c | 1 -
26 files changed, 18 insertions(+), 17 deletions(-)
diff --git a/drivers/serial/altera_jtag_uart.c b/drivers/serial/altera_jtag_uart.c
index 61052a9..86c3de4 100644
--- a/drivers/serial/altera_jtag_uart.c
+++ b/drivers/serial/altera_jtag_uart.c
@@ -121,7 +121,6 @@ U_BOOT_DRIVER(altera_jtaguart) = {
.platdata_auto_alloc_size = sizeof(struct altera_jtaguart_platdata),
.probe = altera_jtaguart_probe,
.ops = &altera_jtaguart_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_ALTERA_JTAGUART
diff --git a/drivers/serial/altera_uart.c b/drivers/serial/altera_uart.c
index b7b0a13..67d4719 100644
--- a/drivers/serial/altera_uart.c
+++ b/drivers/serial/altera_uart.c
@@ -117,7 +117,6 @@ U_BOOT_DRIVER(altera_uart) = {
.platdata_auto_alloc_size = sizeof(struct altera_uart_platdata),
.probe = altera_uart_probe,
.ops = &altera_uart_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_ALTERA_UART
diff --git a/drivers/serial/arm_dcc.c b/drivers/serial/arm_dcc.c
index 43e8691..dfcb6fd 100644
--- a/drivers/serial/arm_dcc.c
+++ b/drivers/serial/arm_dcc.c
@@ -155,7 +155,6 @@ U_BOOT_DRIVER(serial_dcc) = {
.id = UCLASS_SERIAL,
.of_match = arm_dcc_ids,
.ops = &arm_dcc_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_ARM_DCC
diff --git a/drivers/serial/atmel_usart.c b/drivers/serial/atmel_usart.c
index 9414f5f..aa8cdff 100644
--- a/drivers/serial/atmel_usart.c
+++ b/drivers/serial/atmel_usart.c
@@ -294,7 +294,9 @@ U_BOOT_DRIVER(serial_atmel) = {
#endif
.probe = atmel_serial_probe,
.ops = &atmel_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
.priv_auto_alloc_size = sizeof(struct atmel_serial_priv),
};
#endif
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index f9041aa..3c8bc2b 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -473,7 +473,9 @@ U_BOOT_DRIVER(ns16550_serial) = {
.priv_auto_alloc_size = sizeof(struct NS16550),
.probe = ns16550_serial_probe,
.ops = &ns16550_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
};
#endif
#endif /* SERIAL_PRESENT */
diff --git a/drivers/serial/serial_ar933x.c b/drivers/serial/serial_ar933x.c
index e91a5f7..5249c55 100644
--- a/drivers/serial/serial_ar933x.c
+++ b/drivers/serial/serial_ar933x.c
@@ -189,7 +189,6 @@ U_BOOT_DRIVER(serial_ar933x) = {
.priv_auto_alloc_size = sizeof(struct ar933x_serial_priv),
.probe = ar933x_serial_probe,
.ops = &ar933x_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_AR933X
diff --git a/drivers/serial/serial_arc.c b/drivers/serial/serial_arc.c
index 925f0c2..980b38d 100644
--- a/drivers/serial/serial_arc.c
+++ b/drivers/serial/serial_arc.c
@@ -128,7 +128,6 @@ U_BOOT_DRIVER(serial_arc) = {
.ofdata_to_platdata = arc_serial_ofdata_to_platdata,
.probe = arc_serial_probe,
.ops = &arc_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_ARC_SERIAL
diff --git a/drivers/serial/serial_bcm283x_mu.c b/drivers/serial/serial_bcm283x_mu.c
index 1f87f0c..bd1d89e 100644
--- a/drivers/serial/serial_bcm283x_mu.c
+++ b/drivers/serial/serial_bcm283x_mu.c
@@ -199,6 +199,8 @@ U_BOOT_DRIVER(serial_bcm283x_mu) = {
.platdata_auto_alloc_size = sizeof(struct bcm283x_mu_serial_platdata),
.probe = bcm283x_mu_serial_probe,
.ops = &bcm283x_mu_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
.priv_auto_alloc_size = sizeof(struct bcm283x_mu_priv),
};
diff --git a/drivers/serial/serial_bcm283x_pl011.c b/drivers/serial/serial_bcm283x_pl011.c
index 54fc9b5..2527bb8 100644
--- a/drivers/serial/serial_bcm283x_pl011.c
+++ b/drivers/serial/serial_bcm283x_pl011.c
@@ -90,6 +90,8 @@ U_BOOT_DRIVER(bcm283x_pl011_uart) = {
.platdata_auto_alloc_size = sizeof(struct pl01x_serial_platdata),
.probe = pl01x_serial_probe,
.ops = &bcm283x_pl011_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
.priv_auto_alloc_size = sizeof(struct pl01x_priv),
};
diff --git a/drivers/serial/serial_bcm6345.c b/drivers/serial/serial_bcm6345.c
index ee5d561..a0e709a 100644
--- a/drivers/serial/serial_bcm6345.c
+++ b/drivers/serial/serial_bcm6345.c
@@ -264,7 +264,6 @@ U_BOOT_DRIVER(bcm6345_serial) = {
.probe = bcm6345_serial_probe,
.priv_auto_alloc_size = sizeof(struct bcm6345_serial_priv),
.ops = &bcm6345_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_BCM6345
diff --git a/drivers/serial/serial_efi.c b/drivers/serial/serial_efi.c
index 1b54d18..dd3e511 100644
--- a/drivers/serial/serial_efi.c
+++ b/drivers/serial/serial_efi.c
@@ -152,5 +152,4 @@ U_BOOT_DRIVER(serial_efi) = {
.priv_auto_alloc_size = sizeof(struct serial_efi_priv),
.probe = serial_efi_probe,
.ops = &serial_efi_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
diff --git a/drivers/serial/serial_intel_mid.c b/drivers/serial/serial_intel_mid.c
index bdb5adb..39bd40e 100644
--- a/drivers/serial/serial_intel_mid.c
+++ b/drivers/serial/serial_intel_mid.c
@@ -64,5 +64,4 @@ U_BOOT_DRIVER(serial_intel_mid) = {
.priv_auto_alloc_size = sizeof(struct NS16550),
.probe = mid_serial_probe,
.ops = &ns16550_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
index 1212b72..816cedd 100644
--- a/drivers/serial/serial_lpuart.c
+++ b/drivers/serial/serial_lpuart.c
@@ -455,5 +455,4 @@ U_BOOT_DRIVER(serial_lpuart) = {
.platdata_auto_alloc_size = sizeof(struct lpuart_serial_platdata),
.probe = lpuart_serial_probe,
.ops = &lpuart_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
diff --git a/drivers/serial/serial_meson.c b/drivers/serial/serial_meson.c
index dbb8537..b3dad77 100644
--- a/drivers/serial/serial_meson.c
+++ b/drivers/serial/serial_meson.c
@@ -132,7 +132,6 @@ U_BOOT_DRIVER(serial_meson) = {
.of_match = meson_serial_ids,
.probe = meson_serial_probe,
.ops = &meson_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
.ofdata_to_platdata = meson_serial_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct meson_serial_platdata),
};
diff --git a/drivers/serial/serial_mvebu_a3700.c b/drivers/serial/serial_mvebu_a3700.c
index ce26d2b..7e4cd6c 100644
--- a/drivers/serial/serial_mvebu_a3700.c
+++ b/drivers/serial/serial_mvebu_a3700.c
@@ -129,7 +129,6 @@ U_BOOT_DRIVER(serial_mvebu) = {
.platdata_auto_alloc_size = sizeof(struct mvebu_platdata),
.probe = mvebu_serial_probe,
.ops = &mvebu_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_MVEBU_A3700_UART
diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c
index 4f1f822..2cc63da 100644
--- a/drivers/serial/serial_mxc.c
+++ b/drivers/serial/serial_mxc.c
@@ -353,7 +353,9 @@ U_BOOT_DRIVER(serial_mxc) = {
#endif
.probe = mxc_serial_probe,
.ops = &mxc_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
};
#endif
diff --git a/drivers/serial/serial_omap.c b/drivers/serial/serial_omap.c
index af3c755..ee6ad9c 100644
--- a/drivers/serial/serial_omap.c
+++ b/drivers/serial/serial_omap.c
@@ -121,7 +121,9 @@ U_BOOT_DRIVER(omap_serial) = {
.priv_auto_alloc_size = sizeof(struct NS16550),
.probe = ns16550_serial_probe,
.ops = &ns16550_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
};
#endif
#endif /* DM_SERIAL */
diff --git a/drivers/serial/serial_owl.c b/drivers/serial/serial_owl.c
index 6fd97e2..7ead73e 100644
--- a/drivers/serial/serial_owl.c
+++ b/drivers/serial/serial_owl.c
@@ -132,5 +132,4 @@ U_BOOT_DRIVER(serial_owl) = {
.priv_auto_alloc_size = sizeof(struct owl_serial_priv),
.probe = owl_serial_probe,
.ops = &owl_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
diff --git a/drivers/serial/serial_pic32.c b/drivers/serial/serial_pic32.c
index ba73978..84600b1 100644
--- a/drivers/serial/serial_pic32.c
+++ b/drivers/serial/serial_pic32.c
@@ -176,7 +176,6 @@ U_BOOT_DRIVER(pic32_serial) = {
.of_match = pic32_uart_ids,
.probe = pic32_uart_probe,
.ops = &pic32_uart_ops,
- .flags = DM_FLAG_PRE_RELOC,
.priv_auto_alloc_size = sizeof(struct pic32_uart_priv),
};
diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c
index 2a5f256..12512f6 100644
--- a/drivers/serial/serial_pl01x.c
+++ b/drivers/serial/serial_pl01x.c
@@ -363,7 +363,9 @@ U_BOOT_DRIVER(serial_pl01x) = {
.platdata_auto_alloc_size = sizeof(struct pl01x_serial_platdata),
.probe = pl01x_serial_probe,
.ops = &pl01x_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
.priv_auto_alloc_size = sizeof(struct pl01x_priv),
};
diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c
index faea6d4..e3160cf 100644
--- a/drivers/serial/serial_s5p.c
+++ b/drivers/serial/serial_s5p.c
@@ -211,7 +211,6 @@ U_BOOT_DRIVER(serial_s5p) = {
.platdata_auto_alloc_size = sizeof(struct s5p_serial_platdata),
.probe = s5p_serial_probe,
.ops = &s5p_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#endif
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index b153498..c934d5f 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -247,7 +247,9 @@ U_BOOT_DRIVER(serial_sh) = {
.platdata_auto_alloc_size = sizeof(struct sh_serial_platdata),
.probe = sh_serial_probe,
.ops = &sh_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
.priv_auto_alloc_size = sizeof(struct uart_port),
};
diff --git a/drivers/serial/serial_sti_asc.c b/drivers/serial/serial_sti_asc.c
index 5dfc617..c972f1e 100644
--- a/drivers/serial/serial_sti_asc.c
+++ b/drivers/serial/serial_sti_asc.c
@@ -205,6 +205,5 @@ U_BOOT_DRIVER(serial_sti_asc) = {
.ops = &sti_asc_serial_ops,
.probe = sti_asc_serial_probe,
.priv_auto_alloc_size = sizeof(struct sti_asc_serial),
- .flags = DM_FLAG_PRE_RELOC,
};
diff --git a/drivers/serial/serial_stm32.c b/drivers/serial/serial_stm32.c
index 66e02d5..31b43ee 100644
--- a/drivers/serial/serial_stm32.c
+++ b/drivers/serial/serial_stm32.c
@@ -230,7 +230,9 @@ U_BOOT_DRIVER(serial_stm32) = {
.platdata_auto_alloc_size = sizeof(struct stm32x7_serial_platdata),
.ops = &stm32_serial_ops,
.probe = stm32_serial_probe,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
+#endif
};
#ifdef CONFIG_DEBUG_UART_STM32
diff --git a/drivers/serial/serial_xuartlite.c b/drivers/serial/serial_xuartlite.c
index cead3c6..1be777b 100644
--- a/drivers/serial/serial_xuartlite.c
+++ b/drivers/serial/serial_xuartlite.c
@@ -109,7 +109,6 @@ U_BOOT_DRIVER(serial_uartlite) = {
.platdata_auto_alloc_size = sizeof(struct uartlite_platdata),
.probe = uartlite_serial_probe,
.ops = &uartlite_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_UARTLITE
diff --git a/drivers/serial/serial_zynq.c b/drivers/serial/serial_zynq.c
index f689015..7e486a6 100644
--- a/drivers/serial/serial_zynq.c
+++ b/drivers/serial/serial_zynq.c
@@ -210,7 +210,6 @@ U_BOOT_DRIVER(serial_zynq) = {
.platdata_auto_alloc_size = sizeof(struct zynq_uart_platdata),
.probe = zynq_serial_probe,
.ops = &zynq_serial_ops,
- .flags = DM_FLAG_PRE_RELOC,
};
#ifdef CONFIG_DEBUG_UART_ZYNQ
--
2.7.4
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