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arm, am33xx: move uart soft reset code to common place
authorHeiko Schocher <hs@denx.de>
Tue, 4 Jun 2013 09:00:57 +0000 (11:00 +0200)
committerTom Rini <trini@ti.com>
Tue, 18 Jun 2013 14:40:06 +0000 (10:40 -0400)
move uart soft reset code to common place and call
this function from board code, instead of copy and paste
this code for every board.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Matt Porter <mporter@ti.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Tom Rini <trini@ti.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Acked-by: Tom Rini <trini@ti.com>
[trini: Fix igep0033 build, remove 'regval' on pcm051]
Signed-off-by: Tom Rini <trini@ti.com>
arch/arm/cpu/armv7/am33xx/board.c patch | blob | history
arch/arm/include/asm/arch-am33xx/sys_proto.h patch | blob | history
board/isee/igep0033/board.c patch | blob | history
board/phytec/pcm051/board.c patch | blob | history
board/ti/am335x/board.c patch | blob | history
board/ti/ti814x/evm.c patch | blob | history

diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index d3b3612432bf930b7bd9cd1484c05a62ecf23763..b935a29a3ca18aeec87287c4329925037562f348 100644 (file)
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -166,4 +166,26 @@ void rtc32k_enable(void)
        /* Enable the RTC 32K OSC by setting bits 3 and 6. */
        writel((1 << 3) | (1 << 6), &rtc->osc);
 }
+
+#define UART_RESET             (0x1 << 1)
+#define UART_CLK_RUNNING_MASK  0x1
+#define UART_SMART_IDLE_EN     (0x1 << 0x3)
+
+void uart_soft_reset(void)
+{
+       struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
+       u32 regval;
+
+       regval = readl(&uart_base->uartsyscfg);
+       regval |= UART_RESET;
+       writel(regval, &uart_base->uartsyscfg);
+       while ((readl(&uart_base->uartsyssts) &
+               UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
+               ;
+
+       /* Disable smart idle */
+       regval = readl(&uart_base->uartsyscfg);
+       regval |= UART_SMART_IDLE_EN;
+       writel(regval, &uart_base->uartsyscfg);
+}
 #endif
diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h
index cbbb54e39f0edd248c20b3569e6449de176b4f7b..307ac28245a41419807190857078e056e8ec5ecd 100644 (file)
--- a/arch/arm/include/asm/arch-am33xx/sys_proto.h
+++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h
@@ -44,4 +44,5 @@ void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base,
 void omap_nand_switch_ecc(uint32_t, uint32_t);
 
 void rtc32k_enable(void);
+void uart_soft_reset(void);
 #endif
diff --git a/board/isee/igep0033/board.c b/board/isee/igep0033/board.c
index 3e9e25f113051b8aeae0f33ae9c15cf9ecb13aa0..ea3bea50f503b48a68a1f0f84e7dcbd03db7268b 100644 (file)
--- a/board/isee/igep0033/board.c
+++ b/board/isee/igep0033/board.c
@@ -36,21 +36,13 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
-#ifdef CONFIG_SPL_BUILD
-static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
-#endif
 
 /* MII mode defines */
 #define RMII_MODE_ENABLE       0x4D
 
 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 
-/* UART Defines */
 #ifdef CONFIG_SPL_BUILD
-#define UART_RESET             (0x1 << 1)
-#define UART_CLK_RUNNING_MASK  0x1
-#define UART_SMART_IDLE_EN     (0x1 << 0x3)
-
 static const struct ddr_data ddr3_data = {
        .datardsratio0 = K4B2G1646EBIH9_RD_DQS,
        .datawdsratio0 = K4B2G1646EBIH9_WR_DQS,
@@ -115,23 +107,9 @@ void s_init(void)
        /* Enable RTC32K clock */
        rtc32k_enable();
 
-       /* UART softreset */
-       u32 regval;
-
        enable_uart0_pin_mux();
 
-       regval = readl(&uart_base->uartsyscfg);
-       regval |= UART_RESET;
-       writel(regval, &uart_base->uartsyscfg);
-       while ((readl(&uart_base->uartsyssts) &
-               UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
-               ;
-
-       /* Disable smart idle */
-       regval = readl(&uart_base->uartsyscfg);
-       regval |= UART_SMART_IDLE_EN;
-       writel(regval, &uart_base->uartsyscfg);
-
+       uart_soft_reset();
        gd = &gdata;
 
        preloader_console_init();
diff --git a/board/phytec/pcm051/board.c b/board/phytec/pcm051/board.c
index 281f6993180de5f82d91abfbf63f933a4e9f508b..0cca8d75b59c2cc0279865b6ae159cc4c3f8def3 100644 (file)
--- a/board/phytec/pcm051/board.c
+++ b/board/phytec/pcm051/board.c
@@ -39,9 +39,6 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
-#ifdef CONFIG_SPL_BUILD
-static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
-#endif
 
 /* MII mode defines */
 #define MII_MODE_ENABLE                0x0
@@ -50,11 +47,7 @@ static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
 
 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 
-/* UART defines */
 #ifdef CONFIG_SPL_BUILD
-#define UART_RESET             (0x1 << 1)
-#define UART_CLK_RUNNING_MASK  0x1
-#define UART_SMART_IDLE_EN     (0x1 << 0x3)
 
 /* DDR RAM defines */
 #define DDR_CLK_MHZ            303 /* DDR_DPLL_MULT value */
@@ -125,22 +118,8 @@ void s_init(void)
        /* Enable RTC32K clock */
        rtc32k_enable();
 
-       /* UART softreset */
-       u32 regval;
-
        enable_uart0_pin_mux();
-
-       regval = readl(&uart_base->uartsyscfg);
-       regval |= UART_RESET;
-       writel(regval, &uart_base->uartsyscfg);
-       while ((readl(&uart_base->uartsyssts) & UART_CLK_RUNNING_MASK)
-               != UART_CLK_RUNNING_MASK)
-               ;
-
-       /* Disable smart idle */
-       regval = readl(&uart_base->uartsyscfg);
-       regval |= UART_SMART_IDLE_EN;
-       writel(regval, &uart_base->uartsyscfg);
+       uart_soft_reset();
 
        gd = &gdata;
 
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index 75f129e065617fbb701d34462fd1ef2379333fb4..fb98df0f847e5235cb05bd23df52857f3a724323 100644 (file)
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -38,9 +38,6 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
-#ifdef CONFIG_SPL_BUILD
-static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
-#endif
 
 /* MII mode defines */
 #define MII_MODE_ENABLE                0x0
@@ -126,12 +123,7 @@ static int read_eeprom(void)
        return 0;
 }
 
-/* UART Defines */
 #ifdef CONFIG_SPL_BUILD
-#define UART_RESET             (0x1 << 1)
-#define UART_CLK_RUNNING_MASK  0x1
-#define UART_SMART_IDLE_EN     (0x1 << 0x3)
-
 static const struct ddr_data ddr2_data = {
        .datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) |
                          (MT47H128M16RT25E_RD_DQS<<20) |
@@ -314,9 +306,6 @@ void s_init(void)
        /* Enable RTC32K clock */
        rtc32k_enable();
 
-       /* UART softreset */
-       u32 regVal;
-
 #ifdef CONFIG_SERIAL1
        enable_uart0_pin_mux();
 #endif /* CONFIG_SERIAL1 */
@@ -336,17 +325,7 @@ void s_init(void)
        enable_uart5_pin_mux();
 #endif /* CONFIG_SERIAL6 */
 
-       regVal = readl(&uart_base->uartsyscfg);
-       regVal |= UART_RESET;
-       writel(regVal, &uart_base->uartsyscfg);
-       while ((readl(&uart_base->uartsyssts) &
-               UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
-               ;
-
-       /* Disable smart idle */
-       regVal = readl(&uart_base->uartsyscfg);
-       regVal |= UART_SMART_IDLE_EN;
-       writel(regVal, &uart_base->uartsyscfg);
+       uart_soft_reset();
 
        gd = &gdata;
 
diff --git a/board/ti/ti814x/evm.c b/board/ti/ti814x/evm.c
index 38a6ced0bb56a6d7f09fc738405be6de42ccefb3..6ad3dd8fc74adf6e910abd68ca476ec4af4b4409 100644 (file)
--- a/board/ti/ti814x/evm.c
+++ b/board/ti/ti814x/evm.c
@@ -37,33 +37,16 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef CONFIG_SPL_BUILD
 static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
-static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
 #endif
 
 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 
 /* UART Defines */
 #ifdef CONFIG_SPL_BUILD
-#define UART_RESET             (0x1 << 1)
-#define UART_CLK_RUNNING_MASK  0x1
-#define UART_SMART_IDLE_EN     (0x1 << 0x3)
-
 static void uart_enable(void)
 {
-       u32 regVal;
-
        /* UART softreset */
-       regVal = readl(&uart_base->uartsyscfg);
-       regVal |= UART_RESET;
-       writel(regVal, &uart_base->uartsyscfg);
-       while ((readl(&uart_base->uartsyssts) &
-               UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
-               ;
-
-       /* Disable smart idle */
-       regVal = readl(&uart_base->uartsyscfg);
-       regVal |= UART_SMART_IDLE_EN;
-       writel(regVal, &uart_base->uartsyscfg);
+       uart_soft_reset();
 }
 
 static void wdt_disable(void)
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