59 lines
1.6 KiB
Diff
59 lines
1.6 KiB
Diff
activate serial driver for ASC1 if "use_asc1=x" is given on kernel commandline
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mux setup for pins is done via late_initcall, when the gpio driver is initialized
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only implemented for EASY98000, generic version t.b.d.
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--- a/arch/mips/lantiq/falcon/devices.c
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+++ b/arch/mips/lantiq/falcon/devices.c
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@@ -75,6 +75,7 @@ void __init falcon_register_asc(int port
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case 1:
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platform_device_register_simple("ltq_asc", 1,
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falcon_asc1_resources, ARRAY_SIZE(falcon_asc1_resources));
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+ sys1_hw_activate(ACTS_ASC1_ACT);
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break;
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default:
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break;
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--- a/arch/mips/lantiq/falcon/mach-easy98000.c
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+++ b/arch/mips/lantiq/falcon/mach-easy98000.c
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@@ -15,6 +15,7 @@
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#include <linux/spi/spi.h>
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#include <linux/spi/spi_gpio.h>
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#include <linux/spi/eeprom.h>
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+#include <falcon/lantiq_soc.h>
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#include "../machtypes.h"
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@@ -206,9 +207,34 @@ static void __init easy98000_spi_gpio_in
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platform_device_register(&easy98000_spi_gpio_device);
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}
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+static int register_asc1 = 0;
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+static int __init parse_asc1(char *p)
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+{
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+ register_asc1 = 1;
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+ return 0;
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+}
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+__setup("use_asc1", parse_asc1);
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+
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+#define MUXC_SIF_RX_PIN 112
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+#define MUXC_SIF_TX_PIN 113
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+
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+static int __init asc1_mux_setup(void)
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+{
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+ if (register_asc1) {
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+ if (ltq_gpio_request(MUXC_SIF_RX_PIN, 1, 1, 0, "asc1-rx"))
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+ return -1;
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+ if (ltq_gpio_request(MUXC_SIF_TX_PIN, 1, 1, 1, "asc1-tx"))
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+ return -1;
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+ }
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+ return 0;
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+}
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+late_initcall(asc1_mux_setup);
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+
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static void __init easy98000_init_common(void)
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{
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falcon_register_asc(0);
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+ if (register_asc1)
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+ falcon_register_asc(1);
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falcon_register_gpio();
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falcon_register_wdt();
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falcon_register_i2c();
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