Patch set updated for coreboot: a7cb9a2 soc/samsung/exynos5420/uart.c: Implement 'uart_tx_flush()'

[Edward O'Callaghan]

Edward O'Callaghan ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7927

-gerrit

commit a7cb9a28e60a661105699ac0914c35080787bae3
Author: Edward O'Callaghan 
Date:   Fri Dec 26 12:44:08 2014 +1100

soc/samsung/exynos5420/uart.c: Implement 'uart_tx_flush()'

This brings 'uart.c' implementations closer together between
    Exynos generations.

Change-Id: Ifbc61794207ff36a9d8a98951e917f3b6d2ef205
    Signed-off-by: Edward O'Callaghan 
---
 src/soc/samsung/exynos5420/uart.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/soc/samsung/exynos5420/uart.c b/src/soc/samsung/exynos5420/uart.c
index 4d71155..7a7b79b 100644
--- a/src/soc/samsung/exynos5420/uart.c
+++ b/src/soc/samsung/exynos5420/uart.c
@@ -149,6 +149,11 @@ static void exynos5_uart_tx_byte(struct s5p_uart *uart, unsigned char data)
    writeb(data, &uart->utxh);
 }

+static void exynos5_uart_tx_flush(struct s5p_uart *uart)
+{
+	while (readl(&uart->ufstat) & 0x1ff0000);
+}
+
 uintptr_t uart_platform_base(int idx)
 {
    if (idx < 4)
@@ -177,7 +182,8 @@ void uart_tx_byte(int idx, unsigned char data)

void uart_tx_flush(int idx)
 {
-	/* Exynos5250 implements this too. */
+	struct s5p_uart *uart = uart_platform_baseptr(idx);
+	exynos5_uart_tx_flush(uart);
 }

#ifndef __PRE_RAM__