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| author | Rafał Miłecki <rafal@milecki.pl> | 2018-03-29 15:10:01 +0200 |
|---|---|---|
| committer | Rafał Miłecki <rafal@milecki.pl> | 2018-03-29 15:10:19 +0200 |
| commit | 707d11971612821829b0ce2002bece77e859dc52 (patch) | |
| tree | 860dbe31647998284dc36fb8273a199f95791db8 | |
| parent | 4bcf6acb1454a4450c3060054e0e2d15183c836f (diff) | |
| download | upstream-707d11971612821829b0ce2002bece77e859dc52.tar.gz upstream-707d11971612821829b0ce2002bece77e859dc52.tar.bz2 upstream-707d11971612821829b0ce2002bece77e859dc52.zip | |
bcm53xx: fix earlycon regression in kernel 4.14
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
| -rw-r--r-- | target/linux/bcm53xx/patches-4.14/910-Revert-earlycon-initialise-baud-field-of-earlycon-de.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-4.14/910-Revert-earlycon-initialise-baud-field-of-earlycon-de.patch b/target/linux/bcm53xx/patches-4.14/910-Revert-earlycon-initialise-baud-field-of-earlycon-de.patch new file mode 100644 index 0000000000..025781a862 --- /dev/null +++ b/target/linux/bcm53xx/patches-4.14/910-Revert-earlycon-initialise-baud-field-of-earlycon-de.patch @@ -0,0 +1,33 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Subject: [PATCH] Revert "earlycon: initialise baud field of earlycon device + structure" +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This reverts commit 31cb9a8575ca04f47ea113434d4782b695638b62. + +It broke earlycon on BCM5301X. Using: +1) uartclk 1843200 (BASE_BAUD * 16) +2) early_console_dev.baud 115200 +results in init_port() calculating UART divisor 1. That's a wrong value +(default one is 54) that breaks serial console output. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + +--- a/drivers/tty/serial/earlycon.c ++++ b/drivers/tty/serial/earlycon.c +@@ -283,12 +283,7 @@ int __init of_setup_earlycon(const struc + } + } + +- val = of_get_flat_dt_prop(node, "current-speed", NULL); +- if (val) +- early_console_dev.baud = be32_to_cpu(*val); +- + if (options) { +- early_console_dev.baud = simple_strtoul(options, NULL, 0); + strlcpy(early_console_dev.options, options, + sizeof(early_console_dev.options)); + } |