diff mbox series

[2/4] x86: Update coreboot serial table struct

Message ID 20191205230428.23497-2-sjg@chromium.org
State Superseded
Delegated to: Bin Meng
Headers show
Series [1/4] serial: n16550: Support run-time configuration | expand

Commit Message

Simon Glass Dec. 5, 2019, 11:04 p.m. UTC
Since mid 2016, coreboot has additional fields in the serial struct that
it passes down to U-Boot. Add these so we are in sync.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 arch/x86/include/asm/coreboot_tables.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Comments

Bin Meng Dec. 8, 2019, 11:30 a.m. UTC | #1
On Fri, Dec 6, 2019 at 7:04 AM Simon Glass <sjg@chromium.org> wrote:
>
> Since mid 2016, coreboot has additional fields in the serial struct that
> it passes down to U-Boot. Add these so we are in sync.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
>  arch/x86/include/asm/coreboot_tables.h | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff mbox series

Patch

diff --git a/arch/x86/include/asm/coreboot_tables.h b/arch/x86/include/asm/coreboot_tables.h
index 2c54e24e02..61de0077d7 100644
--- a/arch/x86/include/asm/coreboot_tables.h
+++ b/arch/x86/include/asm/coreboot_tables.h
@@ -97,6 +97,25 @@  struct cb_serial {
 	u32 type;
 	u32 baseaddr;
 	u32 baud;
+	u32 regwidth;
+
+	/*
+	 * Crystal or input frequency to the chip containing the UART.
+	 * Provide the board specific details to allow the payload to
+	 * initialize the chip containing the UART and make independent
+	 * decisions as to which dividers to select and their values
+	 * to eventually arrive at the desired console baud-rate.
+	 */
+	u32 input_hertz;
+
+	/*
+	 * UART PCI address: bus, device, function
+	 * 1 << 31 - Valid bit, PCI UART in use
+	 * Bus << 20
+	 * Device << 15
+	 * Function << 12
+	 */
+	u32 uart_pci_addr;
 };
 
 #define CB_TAG_CONSOLE			0x0010