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authorCory Maccarrone <darkstar6262@gmail.com>2010-08-02 14:21:39 +0300
committerTony Lindgren <tony@atomide.com>2010-08-02 14:21:39 +0300
commit8b8fbd39e20b5db95f8f4b3bda4c9d3fcf8e3afc (patch)
tree2e164da265d61b97cf2edfa55579032e24dd77df /arch/arm/mach-omap1
parent35ddf7c003f54fc9878a15384beb9a900d40319d (diff)
downloadlinux-8b8fbd39e20b5db95f8f4b3bda4c9d3fcf8e3afc.tar.bz2
omap1: omap7xx clocks, mux, serial fixes
This change adds in the necessary clocks and mux pins for UART control on omap7xx devices. I also made a change in the serial code to only try and initialize two UARTs in omap_serial_init, as these devices don't have three. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap1')
-rw-r--r--arch/arm/mach-omap1/clock_data.c20
-rw-r--r--arch/arm/mach-omap1/mux.c4
-rw-r--r--arch/arm/mach-omap1/serial.c7
3 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c
index aa8558adbf1c..9240bc1026a3 100644
--- a/arch/arm/mach-omap1/clock_data.c
+++ b/arch/arm/mach-omap1/clock_data.c
@@ -478,6 +478,24 @@ static struct clk usb_dc_ck7xx = {
.enable_bit = 8,
};
+static struct clk uart1_7xx = {
+ .name = "uart1_ck",
+ .ops = &clkops_generic,
+ /* Direct from ULPD, no parent */
+ .rate = 12000000,
+ .enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+ .enable_bit = 9,
+};
+
+static struct clk uart2_7xx = {
+ .name = "uart2_ck",
+ .ops = &clkops_generic,
+ /* Direct from ULPD, no parent */
+ .rate = 12000000,
+ .enable_reg = OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+ .enable_bit = 11,
+};
+
static struct clk mclk_1510 = {
.name = "mclk",
.ops = &clkops_generic,
@@ -620,7 +638,9 @@ static struct omap_clk omap_clks[] = {
/* ULPD clocks */
CLK(NULL, "uart1_ck", &uart1_1510, CK_1510 | CK_310),
CLK(NULL, "uart1_ck", &uart1_16xx.clk, CK_16XX),
+ CLK(NULL, "uart1_ck", &uart1_7xx, CK_7XX),
CLK(NULL, "uart2_ck", &uart2_ck, CK_16XX | CK_1510 | CK_310),
+ CLK(NULL, "uart2_ck", &uart2_7xx, CK_7XX),
CLK(NULL, "uart3_ck", &uart3_1510, CK_1510 | CK_310),
CLK(NULL, "uart3_ck", &uart3_16xx.clk, CK_16XX),
CLK(NULL, "usb_clko", &usb_clko, CK_16XX | CK_1510 | CK_310),
diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c
index 84341377232d..6a9b42f4113f 100644
--- a/arch/arm/mach-omap1/mux.c
+++ b/arch/arm/mach-omap1/mux.c
@@ -70,6 +70,10 @@ MUX_CFG_7XX("SPI_7XX_3", 6, 13, 4, 12, 1, 0)
MUX_CFG_7XX("SPI_7XX_4", 6, 17, 4, 16, 1, 0)
MUX_CFG_7XX("SPI_7XX_5", 8, 25, 0, 24, 0, 0)
MUX_CFG_7XX("SPI_7XX_6", 9, 5, 0, 4, 0, 0)
+
+/* UART pins */
+MUX_CFG_7XX("UART_7XX_1", 3, 21, 0, 20, 0, 0)
+MUX_CFG_7XX("UART_7XX_2", 8, 1, 6, 0, 0, 0)
};
#define OMAP7XX_PINS_SZ ARRAY_SIZE(omap7xx_pins)
#else
diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
index 349de90194e3..b78d0749f13d 100644
--- a/arch/arm/mach-omap1/serial.c
+++ b/arch/arm/mach-omap1/serial.c
@@ -122,6 +122,13 @@ void __init omap_serial_init(void)
for (i = 0; i < ARRAY_SIZE(serial_platform_data) - 1; i++) {
+ /* Don't look at UARTs higher than 2 for omap7xx */
+ if (cpu_is_omap7xx() && i > 1) {
+ serial_platform_data[i].membase = NULL;
+ serial_platform_data[i].mapbase = 0;
+ continue;
+ }
+
/* Static mapping, never released */
serial_platform_data[i].membase =
ioremap(serial_platform_data[i].mapbase, SZ_2K);