diff options
Diffstat (limited to 'target/linux/s3c24xx/patches/0227-fix-s3c2410-serial-fwd-ref.patch.patch.patch')
| -rwxr-xr-x | target/linux/s3c24xx/patches/0227-fix-s3c2410-serial-fwd-ref.patch.patch.patch | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches/0227-fix-s3c2410-serial-fwd-ref.patch.patch.patch b/target/linux/s3c24xx/patches/0227-fix-s3c2410-serial-fwd-ref.patch.patch.patch new file mode 100755 index 0000000000..ffc521b7ff --- /dev/null +++ b/target/linux/s3c24xx/patches/0227-fix-s3c2410-serial-fwd-ref.patch.patch.patch @@ -0,0 +1,167 @@ +From 0535fda1958587000a4abe711a50d221e0f82379 Mon Sep 17 00:00:00 2001 +From: Andy Green <andy@openmoko.com> +Date: Fri, 25 Jul 2008 23:16:57 +0100 +Subject: [PATCH] fix-s3c2410-serial-fwd-ref.patch.patch + +Signed-off-by: Andy Green <andy@openmoko.com> +--- + drivers/serial/s3c2410.c | 129 +++++++++++++++++++++++---------------------- + 1 files changed, 66 insertions(+), 63 deletions(-) + +diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c +index f20f63b..b4833bd 100644 +--- a/drivers/serial/s3c2410.c ++++ b/drivers/serial/s3c2410.c +@@ -1167,6 +1167,10 @@ static int s3c24xx_serial_resume(struct platform_device *dev) + #define s3c24xx_serial_resume NULL + #endif + ++static void s3c24xx_serial_force_debug_port_up(void); ++static void s3c2410_printascii(const char *sz); ++ ++ + static int s3c24xx_serial_init(struct platform_driver *drv, + struct s3c24xx_uart_info *info) + { +@@ -1521,6 +1525,68 @@ static struct platform_driver s3c2440_serial_drv = { + }; + + ++static void s3c24xx_serial_force_debug_port_up(void) ++{ ++ struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[ ++ CONFIG_DEBUG_S3C_UART]; ++ struct s3c24xx_uart_clksrc *clksrc = NULL; ++ struct clk *clk = NULL; ++ unsigned long tmp; ++ ++ s3c24xx_serial_getclk(&ourport->port, &clksrc, &clk, 115200); ++ ++ tmp = __raw_readl(S3C2410_CLKCON); ++ ++ /* re-start uart clocks */ ++ tmp |= S3C2410_CLKCON_UART0; ++ tmp |= S3C2410_CLKCON_UART1; ++ tmp |= S3C2410_CLKCON_UART2; ++ ++ __raw_writel(tmp, S3C2410_CLKCON); ++ udelay(10); ++ ++ s3c24xx_serial_setsource(&ourport->port, clksrc); ++ ++ if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) { ++ clk_disable(ourport->baudclk); ++ ourport->baudclk = NULL; ++ } ++ ++ clk_enable(clk); ++ ++ ourport->clksrc = clksrc; ++ ourport->baudclk = clk; ++} ++ ++static void s3c2410_printascii(const char *sz) ++{ ++ struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[ ++ CONFIG_DEBUG_S3C_UART]; ++ struct uart_port *port = &ourport->port; ++ ++ /* 8 N 1 */ ++ wr_regl(port, S3C2410_ULCON, (rd_regl(port, S3C2410_ULCON)) | 3); ++ /* polling mode */ ++ wr_regl(port, S3C2410_UCON, (rd_regl(port, S3C2410_UCON) & ~0xc0f) | 5); ++ /* disable FIFO */ ++ wr_regl(port, S3C2410_UFCON, (rd_regl(port, S3C2410_UFCON) & ~0x01)); ++ /* fix baud rate */ ++ wr_regl(port, S3C2410_UBRDIV, 26); ++ ++ while (*sz) { ++ int timeout = 10000000; ++ ++ /* spin on it being busy */ ++ while ((!(rd_regl(port, S3C2410_UTRSTAT) & 2)) && timeout--) ++ ; ++ ++ /* transmit register */ ++ wr_regl(port, S3C2410_UTXH, *sz); ++ ++ sz++; ++ } ++} ++ + static inline int s3c2440_serial_init(void) + { + return s3c24xx_serial_init(&s3c2440_serial_drv, &s3c2440_uart_inf); +@@ -1654,69 +1720,6 @@ static struct platform_driver s3c2412_serial_drv = { + }, + }; + +-static void s3c24xx_serial_force_debug_port_up(void) +-{ +- struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[ +- CONFIG_DEBUG_S3C_UART]; +- struct s3c24xx_uart_clksrc *clksrc = NULL; +- struct clk *clk = NULL; +- unsigned long tmp; +- +- s3c24xx_serial_getclk(&ourport->port, &clksrc, &clk, 115200); +- +- tmp = __raw_readl(S3C2410_CLKCON); +- +- /* re-start uart clocks */ +- tmp |= S3C2410_CLKCON_UART0; +- tmp |= S3C2410_CLKCON_UART1; +- tmp |= S3C2410_CLKCON_UART2; +- +- __raw_writel(tmp, S3C2410_CLKCON); +- udelay(10); +- +- s3c24xx_serial_setsource(&ourport->port, clksrc); +- +- if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) { +- clk_disable(ourport->baudclk); +- ourport->baudclk = NULL; +- } +- +- clk_enable(clk); +- +- ourport->clksrc = clksrc; +- ourport->baudclk = clk; +-} +- +-static void s3c2410_printascii(const char *sz) +-{ +- struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[ +- CONFIG_DEBUG_S3C_UART]; +- struct uart_port *port = &ourport->port; +- +- /* 8 N 1 */ +- wr_regl(port, S3C2410_ULCON, (rd_regl(port, S3C2410_ULCON)) | 3); +- /* polling mode */ +- wr_regl(port, S3C2410_UCON, (rd_regl(port, S3C2410_UCON) & ~0xc0f) | 5); +- /* disable FIFO */ +- wr_regl(port, S3C2410_UFCON, (rd_regl(port, S3C2410_UFCON) & ~0x01)); +- /* fix baud rate */ +- wr_regl(port, S3C2410_UBRDIV, 26); +- +- while (*sz) { +- int timeout = 10000000; +- +- /* spin on it being busy */ +- while ((!(rd_regl(port, S3C2410_UTRSTAT) & 2)) && timeout--) +- ; +- +- /* transmit register */ +- wr_regl(port, S3C2410_UTXH, *sz); +- +- sz++; +- } +-} +- +- + /* s3c24xx_serial_resetport + * + * wrapper to call the specific reset for this port (reset the fifos +-- +1.5.6.3 + |