diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/1bf5e6409678d04fd15f9625460078853118521c/depthcharge/veyron_speedy/0002-libpayload-use-32bit-access-when-accessing-4byte-wid.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/1bf5e6409678d04fd15f9625460078853118521c/depthcharge/veyron_speedy/0002-libpayload-use-32bit-access-when-accessing-4byte-wid.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/resources/libreboot/patch/coreboot/1bf5e6409678d04fd15f9625460078853118521c/depthcharge/veyron_speedy/0002-libpayload-use-32bit-access-when-accessing-4byte-wid.patch b/resources/libreboot/patch/coreboot/1bf5e6409678d04fd15f9625460078853118521c/depthcharge/veyron_speedy/0002-libpayload-use-32bit-access-when-accessing-4byte-wid.patch new file mode 100644 index 0000000..b38cf56 --- /dev/null +++ b/resources/libreboot/patch/coreboot/1bf5e6409678d04fd15f9625460078853118521c/depthcharge/veyron_speedy/0002-libpayload-use-32bit-access-when-accessing-4byte-wid.patch @@ -0,0 +1,48 @@ +From be5ba870e006e8e7fe0f1ace2952b540c3aec3d9 Mon Sep 17 00:00:00 2001 +From: Patrick Georgi <pgeorgi@chromium.org> +Date: Mon, 8 Feb 2016 21:17:12 +0100 +Subject: [PATCH 2/4] libpayload: use 32bit access when accessing 4byte wide + uart registers + +This fixes serial on rk3288. + +Change-Id: I3dbf3cc165e516ed7b0132332624f882c0c9b27f +Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> +Reviewed-on: https://review.coreboot.org/13636 +Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> +Tested-by: build bot (Jenkins) +--- + payloads/libpayload/drivers/serial/8250.c | 10 ++++++++-- + 1 file changed, 8 insertions(+), 2 deletions(-) + +diff --git a/payloads/libpayload/drivers/serial/8250.c b/payloads/libpayload/drivers/serial/8250.c +index 7fe9920..0386f23 100644 +--- a/payloads/libpayload/drivers/serial/8250.c ++++ b/payloads/libpayload/drivers/serial/8250.c +@@ -46,7 +46,10 @@ static uint8_t serial_read_reg(int offset) + return inb(IOBASE + offset); + else + #endif +- return readb(MEMBASE + offset); ++ if (lib_sysinfo.serial->regwidth == 4) ++ return readl(MEMBASE + offset) & 0xff; ++ else ++ return readb(MEMBASE + offset); + } + + static void serial_write_reg(uint8_t val, int offset) +@@ -58,7 +61,10 @@ static void serial_write_reg(uint8_t val, int offset) + outb(val, IOBASE + offset); + else + #endif +- writeb(val, MEMBASE + offset); ++ if (lib_sysinfo.serial->regwidth == 4) ++ writel(val & 0xff, MEMBASE + offset); ++ else ++ writeb(val, MEMBASE + offset); + } + + #if IS_ENABLED(CONFIG_LP_SERIAL_SET_SPEED) +-- +2.8.0 + |