[PATCH] ARM: stm32: Fix livetree conversion on STM32MP15xx DHSOM
Unlike fdt_node_check_compatible() which returns 0 if node is compatible, ofnode_device_is_compatible() return true which is non-zero if node is compatible. The intention of the code is to exit from the function in case the node is not compatible with "micrel,ks8851-mll". Add the missing invert into the conditional to reinstate original behavior.
This exposes a follow up problem caused by conversion to DM based FMC2 EBI driver, where the FMC2 EBI is not configured when accessed by this code. Probe the KS8851 MAC, which also configures the FMC2 EBI as a dependency, so that the KS8851 MAC CCR register can be accessed over the FMC2 EBI bus and checked for EEPROM present bit.
Fixes: 5a605b7c8615 ("board: dhelectronics: stm32mp1: convert to livetree") Signed-off-by: Marek Vasut marex@denx.de --- Cc: Patrice Chotard patrice.chotard@foss.st.com Cc: Patrick Delaunay patrick.delaunay@foss.st.com Cc: Simon Glass sjg@chromium.org Cc: Tom Rini trini@konsulko.com Cc: u-boot@dh-electronics.com Cc: u-boot@lists.denx.de Cc: uboot-stm32@st-md-mailman.stormreply.com --- board/dhelectronics/dh_stm32mp1/board.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c index ebd45f9053f..4f4f537fee5 100644 --- a/board/dhelectronics/dh_stm32mp1/board.c +++ b/board/dhelectronics/dh_stm32mp1/board.c @@ -76,14 +76,25 @@
static bool dh_stm32_mac_is_in_ks8851(void) { - ofnode node; + struct udevice *udev; u32 reg, cider, ccr; + char path[256]; + ofnode node; + int ret;
node = ofnode_path("ethernet1"); if (!ofnode_valid(node)) return false;
- if (ofnode_device_is_compatible(node, "micrel,ks8851-mll")) + ret = ofnode_get_path(node, path, sizeof(path)); + if (ret) + return false; + + ret = uclass_get_device_by_of_path(UCLASS_ETH, path, &udev); + if (ret) + return false; + + if (!ofnode_device_is_compatible(node, "micrel,ks8851-mll")) return false;
/*
On 6/6/24 15:02, Marek Vasut wrote:
Unlike fdt_node_check_compatible() which returns 0 if node is compatible, ofnode_device_is_compatible() return true which is non-zero if node is compatible. The intention of the code is to exit from the function in case the node is not compatible with "micrel,ks8851-mll". Add the missing invert into the conditional to reinstate original behavior.
This exposes a follow up problem caused by conversion to DM based FMC2 EBI driver, where the FMC2 EBI is not configured when accessed by this code. Probe the KS8851 MAC, which also configures the FMC2 EBI as a dependency, so that the KS8851 MAC CCR register can be accessed over the FMC2 EBI bus and checked for EEPROM present bit.
Fixes: 5a605b7c8615 ("board: dhelectronics: stm32mp1: convert to livetree") Signed-off-by: Marek Vasut marex@denx.de
Cc: Patrice Chotard patrice.chotard@foss.st.com Cc: Patrick Delaunay patrick.delaunay@foss.st.com Cc: Simon Glass sjg@chromium.org Cc: Tom Rini trini@konsulko.com Cc: u-boot@dh-electronics.com Cc: u-boot@lists.denx.de Cc: uboot-stm32@st-md-mailman.stormreply.com
board/dhelectronics/dh_stm32mp1/board.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c index ebd45f9053f..4f4f537fee5 100644 --- a/board/dhelectronics/dh_stm32mp1/board.c +++ b/board/dhelectronics/dh_stm32mp1/board.c @@ -76,14 +76,25 @@
static bool dh_stm32_mac_is_in_ks8851(void) {
- ofnode node;
struct udevice *udev; u32 reg, cider, ccr;
char path[256];
ofnode node;
int ret;
node = ofnode_path("ethernet1"); if (!ofnode_valid(node)) return false;
- if (ofnode_device_is_compatible(node, "micrel,ks8851-mll"))
ret = ofnode_get_path(node, path, sizeof(path));
if (ret)
return false;ret = uclass_get_device_by_of_path(UCLASS_ETH, path, &udev);
if (ret)
return false;if (!ofnode_device_is_compatible(node, "micrel,ks8851-mll")) return false;
/*
Reviewed-by: Patrice Chotard patrice.chotard@foss.st.com
Thanks Patrice
On 6/6/24 15:02, Marek Vasut wrote:
Unlike fdt_node_check_compatible() which returns 0 if node is compatible, ofnode_device_is_compatible() return true which is non-zero if node is compatible. The intention of the code is to exit from the function in case the node is not compatible with "micrel,ks8851-mll". Add the missing invert into the conditional to reinstate original behavior.
This exposes a follow up problem caused by conversion to DM based FMC2 EBI driver, where the FMC2 EBI is not configured when accessed by this code. Probe the KS8851 MAC, which also configures the FMC2 EBI as a dependency, so that the KS8851 MAC CCR register can be accessed over the FMC2 EBI bus and checked for EEPROM present bit.
Fixes: 5a605b7c8615 ("board: dhelectronics: stm32mp1: convert to livetree") Signed-off-by: Marek Vasut marex@denx.de
Cc: Patrice Chotard patrice.chotard@foss.st.com Cc: Patrick Delaunay patrick.delaunay@foss.st.com Cc: Simon Glass sjg@chromium.org Cc: Tom Rini trini@konsulko.com Cc: u-boot@dh-electronics.com Cc: u-boot@lists.denx.de Cc: uboot-stm32@st-md-mailman.stormreply.com
board/dhelectronics/dh_stm32mp1/board.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c index ebd45f9053f..4f4f537fee5 100644 --- a/board/dhelectronics/dh_stm32mp1/board.c +++ b/board/dhelectronics/dh_stm32mp1/board.c @@ -76,14 +76,25 @@
static bool dh_stm32_mac_is_in_ks8851(void) {
- ofnode node;
struct udevice *udev; u32 reg, cider, ccr;
char path[256];
ofnode node;
int ret;
node = ofnode_path("ethernet1"); if (!ofnode_valid(node)) return false;
- if (ofnode_device_is_compatible(node, "micrel,ks8851-mll"))
ret = ofnode_get_path(node, path, sizeof(path));
if (ret)
return false;ret = uclass_get_device_by_of_path(UCLASS_ETH, path, &udev);
if (ret)
return false;if (!ofnode_device_is_compatible(node, "micrel,ks8851-mll")) return false;
/*
Applied to u-boot-stm32/master
participants (2)
-
Marek Vasut -
Patrice CHOTARD