xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x86: ce4100: allow second UART usage

Browse Source 
The current CE4100 and 8250_pci code have both a limitation preventing the
registration and usage of CE4100's second UART. This patch changes the
platform code fixing up the UART port to work on a relative UART port
base address, as well as the 8250_pci code to make it register 2 UART ports
for CE4100 and pass the port index down to all consumers.

Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maxime Bizon
2012-10-19 10:45:07 +02:00
committed by Greg Kroah-Hartman
parent 7a0c4edae9
commit 08ec212c0f
2 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/x86/platform/ce4100/ce4100.c
View File

@@ -92,8 +92,11 @@ static void ce4100_serial_fixup(int port, struct uart_port *up,
up->membase =
(void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE);
up->membase += up->mapbase & ~PAGE_MASK;
up->mapbase += port * 0x100;
up->membase += port * 0x100;
up->iotype = UPIO_MEM32;
up->regshift = 2;
up->irq = 4;
}
#endif
up->iobase = 0;