[gauss] Gauss board driver for Amlogic RAW_NAND.
Change-Id: I0d7b657e184c43aa4b4d61bc7c1be0cb0f02dc54
diff --git a/system/dev/board/gauss/gauss-rawnand.c b/system/dev/board/gauss/gauss-rawnand.c
new file mode 100644
index 0000000..87ab421
--- /dev/null
+++ b/system/dev/board/gauss/gauss-rawnand.c
@@ -0,0 +1,92 @@
+// Copyright 2018 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <ddk/debug.h>
+#include <ddk/device.h>
+#include <ddk/io-buffer.h>
+#include <ddk/protocol/gpio.h>
+#include <ddk/protocol/platform-bus.h>
+#include <ddk/protocol/platform-defs.h>
+#include <hw/reg.h>
+#include <soc/aml-a113/a113-hw.h>
+#include <unistd.h>
+
+#include "gauss.h"
+#include "gauss-hw.h"
+
+static const pbus_mmio_t raw_nand_mmios[] = {
+ { /* nandreg : Registers for NAND controller */
+ .base = GAUSS_RAW_NAND_REG,
+ .length = 0x2000,
+ },
+ { /* clockreg : Clock Register for NAND controller */
+ /*
+ * From the Linux devicetree. This is the base SD_EMMC_CLOCK
+ * register (for port C)
+ */
+ .base = GAUSS_RAW_NAND_CLKREG,
+ .length = 0x4, /* Just 4 bytes */
+ },
+};
+
+static const pbus_irq_t raw_nand_irqs[] = {
+ {
+ .irq = GAUSS_RAW_NAND_IRQ,
+ },
+};
+
+static const pbus_bti_t raw_nand_btis[] = {
+ {
+ .iommu_index = 0,
+ .bti_id = BTI_AML_RAW_NAND,
+ },
+};
+
+static const pbus_dev_t raw_nand_dev = {
+ .name = "aml_raw_nand",
+ .vid = PDEV_VID_AMLOGIC,
+ .pid = PDEV_PID_GENERIC,
+ .did = PDEV_DID_AMLOGIC_RAW_NAND,
+ .mmios = raw_nand_mmios,
+ .mmio_count = countof(raw_nand_mmios),
+ .irqs = raw_nand_irqs,
+ .irq_count = countof(raw_nand_irqs),
+ .btis = raw_nand_btis,
+ .bti_count = countof(raw_nand_btis),
+};
+
+zx_status_t gauss_raw_nand_init(gauss_bus_t* bus) {
+ zx_status_t status;
+
+ // set alternate functions to enable raw_nand
+ status = gpio_set_alt_function(&bus->gpio, A113_GPIOBOOT(8), 2);
+ if (status != ZX_OK)
+ return status;
+ status = gpio_set_alt_function(&bus->gpio, A113_GPIOBOOT(9), 2);
+ if (status != ZX_OK)
+ return status;
+ status = gpio_set_alt_function(&bus->gpio, A113_GPIOBOOT(10), 2);
+ if (status != ZX_OK)
+ return status;
+ status = gpio_set_alt_function(&bus->gpio, A113_GPIOBOOT(11), 2);
+ if (status != ZX_OK)
+ return status;
+ status = gpio_set_alt_function(&bus->gpio, A113_GPIOBOOT(12), 2);
+ if (status != ZX_OK)
+ return status;
+ status = gpio_set_alt_function(&bus->gpio, A113_GPIOBOOT(13), 2);
+ if (status != ZX_OK)
+ return status;
+
+ status = pbus_device_add(&bus->pbus, &raw_nand_dev, PDEV_ADD_PBUS_DEVHOST);
+ if (status != ZX_OK) {
+ zxlogf(ERROR, "gauss_raw_nand_init: pbus_device_add raw_nand failed: %d\n",
+ status);
+ return status;
+ }
+
+ return ZX_OK;
+}
+
+
diff --git a/system/dev/board/gauss/gauss.c b/system/dev/board/gauss/gauss.c
index 6fcdc7a..215e525 100644
--- a/system/dev/board/gauss/gauss.c
+++ b/system/dev/board/gauss/gauss.c
@@ -193,6 +193,11 @@
}
#endif
+ if ((status = gauss_raw_nand_init(bus)) != ZX_OK) {
+ zxlogf(ERROR, "gauss_raw_nand_init failed: %d\n", status);
+ goto fail;
+ }
+
if ((status = pbus_device_add(&bus->pbus, &led_dev, 0)) != ZX_OK) {
zxlogf(ERROR, "a113_i2c_init could not add i2c_led_dev: %d\n", status);
goto fail;
diff --git a/system/dev/board/gauss/gauss.h b/system/dev/board/gauss/gauss.h
index 2e093a2..bd63104 100644
--- a/system/dev/board/gauss/gauss.h
+++ b/system/dev/board/gauss/gauss.h
@@ -28,6 +28,7 @@
BTI_AUDIO_IN,
BTI_AUDIO_OUT,
BTI_USB_XHCI,
+ BTI_AML_RAW_NAND,
};
typedef struct {
@@ -63,3 +64,6 @@
// gauss-pcie.c
zx_status_t gauss_pcie_init(gauss_bus_t* bus);
+
+// gauss-raw_nand.c
+zx_status_t gauss_raw_nand_init(gauss_bus_t* bus);
diff --git a/system/dev/board/gauss/rules.mk b/system/dev/board/gauss/rules.mk
index f367d42..e6a1ac2 100644
--- a/system/dev/board/gauss/rules.mk
+++ b/system/dev/board/gauss/rules.mk
@@ -16,6 +16,7 @@
$(LOCAL_DIR)/gauss-i2c.c \
$(LOCAL_DIR)/gauss-pcie.c \
$(LOCAL_DIR)/gauss-usb.c \
+ $(LOCAL_DIR)/gauss-rawnand.c \
MODULE_STATIC_LIBS := \
system/dev/lib/amlogic \
diff --git a/system/dev/lib/amlogic/include/soc/aml-a113/a113-hw.h b/system/dev/lib/amlogic/include/soc/aml-a113/a113-hw.h
index 9fa2997..5a90726 100644
--- a/system/dev/lib/amlogic/include/soc/aml-a113/a113-hw.h
+++ b/system/dev/lib/amlogic/include/soc/aml-a113/a113-hw.h
@@ -19,3 +19,7 @@
// Clock Control
#define AXG_HIU_BASE_PHYS 0xff63c000
+// RAW_NAND MMIO and IRQ
+#define GAUSS_RAW_NAND_REG 0xffe07800
+#define GAUSS_RAW_NAND_CLKREG 0xffe07000
+#define GAUSS_RAW_NAND_IRQ 66
