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From: | Luc Michel |
Subject: | Re: [PATCH v5 4/7] hw/arm/aspeed: Add the 3 front LEDs drived by the PCA9552 #1 |
Date: | Fri, 11 Sep 2020 21:57:01 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 |
On 9/10/20 10:54 PM, Philippe Mathieu-Daudé wrote:
The Witherspoon has 3 LEDs connected to a PCA9552. Add them. The names and reset values are taken from: https://github.com/open-power/witherspoon-xml/blob/master/witherspoon.xml Example booting obmc-phosphor-image: $ qemu-system-arm -M witherspoon-bmc -trace led_change_intensity 1592693373.997015:led_change_intensity LED desc:'front-fault-4' color:green intensity 0% -> 100% 1592693373.997632:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693373.998239:led_change_intensity LED desc:'front-id-5' color:green intensity 0% -> 100% 1592693500.291805:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693500.312041:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693500.821254:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693501.331517:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693501.841367:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693502.350839:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% 1592693502.861134:led_change_intensity LED desc:'front-power-3' color:green intensity 100% -> 0% 1592693503.371090:led_change_intensity LED desc:'front-power-3' color:green intensity 0% -> 100% We notice the front-power LED starts to blink at a ~2Hz rate. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
--- hw/arm/aspeed.c | 20 ++++++++++++++++++++ hw/arm/Kconfig | 1 + 2 files changed, 21 insertions(+) diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c index 8bfb1c79ddc..83e322ea983 100644 --- a/hw/arm/aspeed.c +++ b/hw/arm/aspeed.c @@ -20,6 +20,7 @@ #include "hw/i2c/smbus_eeprom.h" #include "hw/misc/pca9552.h" #include "hw/misc/tmp105.h" +#include "hw/misc/led.h" #include "hw/qdev-properties.h" #include "qemu/log.h" #include "sysemu/block-backend.h" @@ -521,9 +522,20 @@ static void sonorapass_bmc_i2c_init(AspeedMachineState *bmc)static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc){ + static const struct { + unsigned gpio_id; + LEDColor color; + const char *description; + bool gpio_polarity; + } pca1_leds[] = { + {13, LED_COLOR_GREEN, "front-fault-4", GPIO_POLARITY_ACTIVE_LOW}, + {14, LED_COLOR_GREEN, "front-power-3", GPIO_POLARITY_ACTIVE_LOW}, + {15, LED_COLOR_GREEN, "front-id-5", GPIO_POLARITY_ACTIVE_LOW}, + }; AspeedSoCState *soc = &bmc->soc; uint8_t *eeprom_buf = g_malloc0(8 * 1024); DeviceState *dev; + LEDState *led;/* Bus 3: TODO bmp280@77 *//* Bus 3: TODO max31785@52 */ @@ -534,6 +546,14 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc) aspeed_i2c_get_bus(&soc->i2c, 3), &error_fatal);+ for (size_t i = 0; i < ARRAY_SIZE(pca1_leds); i++) {+ led = led_create_simple(OBJECT(bmc), + pca1_leds[i].gpio_polarity, + pca1_leds[i].color, + pca1_leds[i].description); + qdev_connect_gpio_out(dev, pca1_leds[i].gpio_id, + qdev_get_gpio_in(DEVICE(led), 0)); + } i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "tmp423", 0x4c); i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), "tmp423", 0x4c);diff --git a/hw/arm/Kconfig b/hw/arm/Kconfigindex bc3a423940b..06ba1c355b1 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -394,6 +394,7 @@ config ASPEED_SOC select TMP105 select TMP421 select UNIMP + select LEDconfig MPS2bool
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