diff options
| -rw-r--r-- | arch/arm/mach-tegra/board-ventana.c | 83 |
1 files changed, 75 insertions, 8 deletions
diff --git a/arch/arm/mach-tegra/board-ventana.c b/arch/arm/mach-tegra/board-ventana.c index 329fb7c65a46..31e4cae37171 100644 --- a/arch/arm/mach-tegra/board-ventana.c +++ b/arch/arm/mach-tegra/board-ventana.c @@ -36,6 +36,7 @@ #include <linux/usb/android_composite.h> #include <linux/mfd/tps6586x.h> #include <linux/memblock.h> +#include <linux/tegra_uart.h> #ifdef CONFIG_TOUCHSCREEN_PANJIT_I2C #include <linux/i2c/panjit_ts.h> @@ -105,6 +106,79 @@ static struct platform_device debug_uart = { .platform_data = debug_uart_platform_data, }, }; +static struct platform_device *ventana_uart_devices[] __initdata = { + &tegra_uartb_device, + &tegra_uartc_device, + &tegra_uartd_device, +}; + +struct uart_clk_parent uart_parent_clk[] = { + [0] = {.name = "pll_p"}, + [1] = {.name = "pll_m"}, + [2] = {.name = "clk_m"}, +}; + +static struct tegra_uart_platform_data cardhu_uart_pdata; + +static void __init uart_debug_init(void) +{ + unsigned long rate; + static struct clk *debug_uart_clk; + struct clk *c; + + /* UARTD is the debug port. */ + pr_info("Selecting UARTD as the debug console\n"); + ventana_uart_devices[2] = &debug_uart; + debug_uart_clk = clk_get_sys("serial8250.0", "uartd"); + + /* Clock enable for the debug channel */ + if (!IS_ERR_OR_NULL(debug_uart_clk)) { + rate = debug_uart_platform_data[0].uartclk; + pr_info("The debug console clock name is %s\n", + debug_uart_clk->name); + c = tegra_get_clock_by_name("pll_p"); + if (IS_ERR_OR_NULL(c)) + pr_err("Not getting the parent clock pll_p\n"); + else + clk_set_parent(debug_uart_clk, c); + + clk_enable(debug_uart_clk); + clk_set_rate(debug_uart_clk, rate); + } else { + pr_err("Not getting the clock %s for debug console\n", + debug_uart_clk->name); + } +} + +static void __init ventana_uart_init(void) +{ + int i; + struct clk *c; + + for (i = 0; i < ARRAY_SIZE(uart_parent_clk); ++i) { + c = tegra_get_clock_by_name(uart_parent_clk[i].name); + if (IS_ERR_OR_NULL(c)) { + pr_err("Not able to get the clock for %s\n", + uart_parent_clk[i].name); + continue; + } + uart_parent_clk[i].parent_clk = c; + uart_parent_clk[i].fixed_clk_rate = clk_get_rate(c); + } + cardhu_uart_pdata.parent_clk_list = uart_parent_clk; + cardhu_uart_pdata.parent_clk_count = ARRAY_SIZE(uart_parent_clk); + + tegra_uartb_device.dev.platform_data = &cardhu_uart_pdata; + tegra_uartc_device.dev.platform_data = &cardhu_uart_pdata; + tegra_uartd_device.dev.platform_data = &cardhu_uart_pdata; + + /* Register low speed only if it is selected */ + if (!is_tegra_debug_uartport_hs()) + uart_debug_init(); + + platform_add_devices(ventana_uart_devices, + ARRAY_SIZE(ventana_uart_devices)); +} static struct tegra_audio_platform_data tegra_spdif_pdata = { .dma_on = true, /* use dma by default */ @@ -230,8 +304,6 @@ static inline void tegra_setup_bluesleep(void) { } static __initdata struct tegra_clk_init_table ventana_clk_init_table[] = { /* name parent rate enabled */ - { "uartd", "pll_p", 216000000, true}, - { "uartc", "pll_m", 600000000, false}, { "blink", "clk_32k", 32768, false}, { "pll_p_out4", "pll_p", 24000000, true }, { "pwm", "clk_32k", 32768, false}, @@ -601,8 +673,6 @@ static struct platform_device tegra_camera = { static struct platform_device *ventana_devices[] __initdata = { &tegra_usb_fsg_device, &androidusb_device, - &tegra_uartb_device, - &tegra_uartc_device, &pmu_device, &tegra_udc_device, &tegra_ehci2_device, @@ -853,15 +923,12 @@ static void __init tegra_ventana_init(void) tegra_clk_init_from_table(ventana_clk_init_table); ventana_pinmux_init(); ventana_i2c_init(); + ventana_uart_init(); snprintf(usb_serial_num, sizeof(usb_serial_num), "%llx", tegra_chip_uid()); andusb_plat.serial_number = kstrdup(usb_serial_num, GFP_KERNEL); tegra_i2s_device1.dev.platform_data = &tegra_audio_pdata[0]; tegra_i2s_device2.dev.platform_data = &tegra_audio_pdata[1]; tegra_spdif_device.dev.platform_data = &tegra_spdif_pdata; - if (is_tegra_debug_uartport_hs() == true) - platform_device_register(&tegra_uartd_device); - else - platform_device_register(&debug_uart); tegra_das_device.dev.platform_data = &tegra_das_pdata; tegra_ehci2_device.dev.platform_data = &ventana_ehci2_ulpi_platform_data; |