--- /dev/null
+/*
+ * LatticeMico32 hwsetup helper functions.
+ *
+ * Copyright (c) 2010 Michael Walle <michael@walle.cc>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * These are helper functions for creating the hardware description blob used
+ * in the Theobroma's uClinux port.
+ */
+
+#ifndef QEMU_HW_LM32_HWSETUP_H
+#define QEMU_HW_LM32_HWSETUP_H
+
+#include "qemu-common.h"
+#include "hw/loader.h"
+
+typedef struct {
+ void *data;
+ void *ptr;
+} HWSetup;
+
+enum hwsetup_tag {
+ HWSETUP_TAG_EOL = 0,
+ HWSETUP_TAG_CPU = 1,
+ HWSETUP_TAG_ASRAM = 2,
+ HWSETUP_TAG_FLASH = 3,
+ HWSETUP_TAG_SDRAM = 4,
+ HWSETUP_TAG_OCM = 5,
+ HWSETUP_TAG_DDR_SDRAM = 6,
+ HWSETUP_TAG_DDR2_SDRAM = 7,
+ HWSETUP_TAG_TIMER = 8,
+ HWSETUP_TAG_UART = 9,
+ HWSETUP_TAG_GPIO = 10,
+ HWSETUP_TAG_TRISPEEDMAC = 11,
+ HWSETUP_TAG_I2CM = 12,
+ HWSETUP_TAG_LEDS = 13,
+ HWSETUP_TAG_7SEG = 14,
+ HWSETUP_TAG_SPI_S = 15,
+ HWSETUP_TAG_SPI_M = 16,
+};
+
+static inline HWSetup *hwsetup_init(void)
+{
+ HWSetup *hw;
+
+ hw = g_malloc(sizeof(HWSetup));
+ hw->data = g_malloc0(TARGET_PAGE_SIZE);
+ hw->ptr = hw->data;
+
+ return hw;
+}
+
+static inline void hwsetup_free(HWSetup *hw)
+{
+ g_free(hw->data);
+ g_free(hw);
+}
+
+static inline void hwsetup_create_rom(HWSetup *hw,
+ hwaddr base)
+{
+ rom_add_blob("hwsetup", hw->data, TARGET_PAGE_SIZE,
+ TARGET_PAGE_SIZE, base, NULL, NULL, NULL);
+}
+
+static inline void hwsetup_add_u8(HWSetup *hw, uint8_t u)
+{
+ stb_p(hw->ptr, u);
+ hw->ptr += 1;
+}
+
+static inline void hwsetup_add_u32(HWSetup *hw, uint32_t u)
+{
+ stl_p(hw->ptr, u);
+ hw->ptr += 4;
+}
+
+static inline void hwsetup_add_tag(HWSetup *hw, enum hwsetup_tag t)
+{
+ stl_p(hw->ptr, t);
+ hw->ptr += 4;
+}
+
+static inline void hwsetup_add_str(HWSetup *hw, const char *str)
+{
+ pstrcpy(hw->ptr, 32, str);
+ hw->ptr += 32;
+}
+
+static inline void hwsetup_add_trailer(HWSetup *hw)
+{
+ hwsetup_add_u32(hw, 8); /* size */
+ hwsetup_add_tag(hw, HWSETUP_TAG_EOL);
+}
+
+static inline void hwsetup_add_cpu(HWSetup *hw,
+ const char *name, uint32_t frequency)
+{
+ hwsetup_add_u32(hw, 44); /* size */
+ hwsetup_add_tag(hw, HWSETUP_TAG_CPU);
+ hwsetup_add_str(hw, name);
+ hwsetup_add_u32(hw, frequency);
+}
+
+static inline void hwsetup_add_flash(HWSetup *hw,
+ const char *name, uint32_t base, uint32_t size)
+{
+ hwsetup_add_u32(hw, 52); /* size */
+ hwsetup_add_tag(hw, HWSETUP_TAG_FLASH);
+ hwsetup_add_str(hw, name);
+ hwsetup_add_u32(hw, base);
+ hwsetup_add_u32(hw, size);
+ hwsetup_add_u8(hw, 8); /* read latency */
+ hwsetup_add_u8(hw, 8); /* write latency */
+ hwsetup_add_u8(hw, 25); /* address width */
+ hwsetup_add_u8(hw, 32); /* data width */
+}
+
+static inline void hwsetup_add_ddr_sdram(HWSetup *hw,
+ const char *name, uint32_t base, uint32_t size)
+{
+ hwsetup_add_u32(hw, 48); /* size */
+ hwsetup_add_tag(hw, HWSETUP_TAG_DDR_SDRAM);
+ hwsetup_add_str(hw, name);
+ hwsetup_add_u32(hw, base);
+ hwsetup_add_u32(hw, size);
+}
+
+static inline void hwsetup_add_timer(HWSetup *hw,
+ const char *name, uint32_t base, uint32_t irq)
+{
+ hwsetup_add_u32(hw, 56); /* size */
+ hwsetup_add_tag(hw, HWSETUP_TAG_TIMER);
+ hwsetup_add_str(hw, name);
+ hwsetup_add_u32(hw, base);
+ hwsetup_add_u8(hw, 1); /* wr_tickcount */
+ hwsetup_add_u8(hw, 1); /* rd_tickcount */
+ hwsetup_add_u8(hw, 1); /* start_stop_control */
+ hwsetup_add_u8(hw, 32); /* counter_width */
+ hwsetup_add_u32(hw, 20); /* reload_ticks */
+ hwsetup_add_u8(hw, irq);
+ hwsetup_add_u8(hw, 0); /* padding */
+ hwsetup_add_u8(hw, 0); /* padding */
+ hwsetup_add_u8(hw, 0); /* padding */
+}
+
+static inline void hwsetup_add_uart(HWSetup *hw,
+ const char *name, uint32_t base, uint32_t irq)
+{
+ hwsetup_add_u32(hw, 56); /* size */
+ hwsetup_add_tag(hw, HWSETUP_TAG_UART);
+ hwsetup_add_str(hw, name);
+ hwsetup_add_u32(hw, base);
+ hwsetup_add_u32(hw, 115200); /* baudrate */
+ hwsetup_add_u8(hw, 8); /* databits */
+ hwsetup_add_u8(hw, 1); /* stopbits */
+ hwsetup_add_u8(hw, 1); /* use_interrupt */
+ hwsetup_add_u8(hw, 1); /* block_on_transmit */
+ hwsetup_add_u8(hw, 1); /* block_on_receive */
+ hwsetup_add_u8(hw, 4); /* rx_buffer_size */
+ hwsetup_add_u8(hw, 4); /* tx_buffer_size */
+ hwsetup_add_u8(hw, irq);
+}
+
+#endif /* QEMU_HW_LM32_HWSETUP_H */
Code Review / kvmfornfv.git / blobdiff