285 lines
7.6 KiB
C
285 lines
7.6 KiB
C
/* vim:set shiftwidth=4 ts=4 et: */
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/*
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* PXA255 Sharp Zaurus SL-6000 PDA platform
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*
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* Copyright (c) 2008 Dmitry Baryshkov
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*
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* Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
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* This code is licensed under the GNU GPL v2.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "hw.h"
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#include "pxa.h"
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#include "arm-misc.h"
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#include "devices.h"
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#include "sharpsl.h"
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#include "pcmcia.h"
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#include "block.h"
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#include "boards.h"
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#include "i2c.h"
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#include "ssi.h"
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#include "blockdev.h"
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#include "sysbus.h"
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#include "exec-memory.h"
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#define TOSA_RAM 0x04000000
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#define TOSA_ROM 0x00800000
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#define TOSA_GPIO_USB_IN (5)
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#define TOSA_GPIO_nSD_DETECT (9)
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#define TOSA_GPIO_ON_RESET (19)
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#define TOSA_GPIO_CF_IRQ (21) /* CF slot0 Ready */
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#define TOSA_GPIO_CF_CD (13)
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#define TOSA_GPIO_TC6393XB_INT (15)
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#define TOSA_GPIO_JC_CF_IRQ (36) /* CF slot1 Ready */
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#define TOSA_SCOOP_GPIO_BASE 1
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#define TOSA_GPIO_IR_POWERDWN (TOSA_SCOOP_GPIO_BASE + 2)
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#define TOSA_GPIO_SD_WP (TOSA_SCOOP_GPIO_BASE + 3)
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#define TOSA_GPIO_PWR_ON (TOSA_SCOOP_GPIO_BASE + 4)
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#define TOSA_SCOOP_JC_GPIO_BASE 1
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#define TOSA_GPIO_BT_LED (TOSA_SCOOP_JC_GPIO_BASE + 0)
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#define TOSA_GPIO_NOTE_LED (TOSA_SCOOP_JC_GPIO_BASE + 1)
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#define TOSA_GPIO_CHRG_ERR_LED (TOSA_SCOOP_JC_GPIO_BASE + 2)
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#define TOSA_GPIO_TC6393XB_L3V_ON (TOSA_SCOOP_JC_GPIO_BASE + 5)
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#define TOSA_GPIO_WLAN_LED (TOSA_SCOOP_JC_GPIO_BASE + 7)
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#define DAC_BASE 0x4e
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#define DAC_CH1 0
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#define DAC_CH2 1
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static void tosa_microdrive_attach(PXA2xxState *cpu)
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{
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PCMCIACardState *md;
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DriveInfo *dinfo;
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dinfo = drive_get(IF_IDE, 0, 0);
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if (!dinfo || dinfo->media_cd)
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return;
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md = dscm1xxxx_init(dinfo);
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pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
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}
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static void tosa_out_switch(void *opaque, int line, int level)
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{
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switch (line) {
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case 0:
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fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
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break;
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case 1:
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fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
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break;
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case 2:
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fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
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break;
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case 3:
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fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
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break;
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default:
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fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
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break;
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}
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}
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static void tosa_gpio_setup(PXA2xxState *cpu,
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DeviceState *scp0,
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DeviceState *scp1,
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TC6393xbState *tmio)
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{
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qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
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/* MMC/SD host */
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pxa2xx_mmci_handlers(cpu->mmc,
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qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
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qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
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/* Handle reset */
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qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
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/* PCMCIA signals: card's IRQ and Card-Detect */
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pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
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qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
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qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
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pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
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qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
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NULL);
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qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
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qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
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qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
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qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
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qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
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/* UDC Vbus */
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qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
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}
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static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
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{
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fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
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return 0;
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}
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static int tosa_ssp_init(SSISlave *dev)
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{
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/* Nothing to do. */
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return 0;
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}
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typedef struct {
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i2c_slave i2c;
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int len;
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char buf[3];
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} TosaDACState;
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static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
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{
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TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
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s->buf[s->len] = data;
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if (s->len ++ > 2) {
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#ifdef VERBOSE
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fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
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#endif
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return 1;
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}
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if (s->len == 2) {
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fprintf(stderr, "dac: channel %d value 0x%02x\n",
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s->buf[0], s->buf[1]);
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}
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return 0;
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}
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static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
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{
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TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
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s->len = 0;
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switch (event) {
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case I2C_START_SEND:
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break;
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case I2C_START_RECV:
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printf("%s: recv not supported!!!\n", __FUNCTION__);
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break;
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case I2C_FINISH:
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#ifdef VERBOSE
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if (s->len < 2)
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printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
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if (s->len > 2)
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printf("%s: message too long\n", __FUNCTION__);
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#endif
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break;
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default:
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break;
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}
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}
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static int tosa_dac_recv(i2c_slave *s)
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{
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printf("%s: recv not supported!!!\n", __FUNCTION__);
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return -1;
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}
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static int tosa_dac_init(i2c_slave *i2c)
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{
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/* Nothing to do. */
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return 0;
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}
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static void tosa_tg_init(PXA2xxState *cpu)
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{
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i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
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i2c_create_slave(bus, "tosa_dac", DAC_BASE);
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ssi_create_slave(cpu->ssp[1], "tosa-ssp");
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}
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static struct arm_boot_info tosa_binfo = {
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.loader_start = PXA2XX_SDRAM_BASE,
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.ram_size = 0x04000000,
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};
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static void tosa_init(ram_addr_t ram_size,
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const char *boot_device,
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const char *kernel_filename, const char *kernel_cmdline,
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const char *initrd_filename, const char *cpu_model)
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{
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MemoryRegion *address_space_mem = get_system_memory();
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MemoryRegion *rom = g_new(MemoryRegion, 1);
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PXA2xxState *cpu;
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TC6393xbState *tmio;
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DeviceState *scp0, *scp1;
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if (!cpu_model)
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cpu_model = "pxa255";
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cpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
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memory_region_init_ram(rom, "tosa.rom", TOSA_ROM);
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vmstate_register_ram_global(rom);
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memory_region_set_readonly(rom, true);
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memory_region_add_subregion(address_space_mem, 0, rom);
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tmio = tc6393xb_init(address_space_mem, 0x10000000,
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qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_TC6393XB_INT));
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scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
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scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
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tosa_gpio_setup(cpu, scp0, scp1, tmio);
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tosa_microdrive_attach(cpu);
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tosa_tg_init(cpu);
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tosa_binfo.kernel_filename = kernel_filename;
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tosa_binfo.kernel_cmdline = kernel_cmdline;
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tosa_binfo.initrd_filename = initrd_filename;
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tosa_binfo.board_id = 0x208;
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arm_load_kernel(cpu->env, &tosa_binfo);
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sl_bootparam_write(SL_PXA_PARAM_BASE);
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}
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static QEMUMachine tosapda_machine = {
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.name = "tosa",
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.desc = "Tosa PDA (PXA255)",
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.init = tosa_init,
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};
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static void tosapda_machine_init(void)
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{
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qemu_register_machine(&tosapda_machine);
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}
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machine_init(tosapda_machine_init);
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static I2CSlaveInfo tosa_dac_info = {
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.qdev.name = "tosa_dac",
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.qdev.size = sizeof(TosaDACState),
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.init = tosa_dac_init,
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.event = tosa_dac_event,
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.recv = tosa_dac_recv,
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.send = tosa_dac_send
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};
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static SSISlaveInfo tosa_ssp_info = {
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.qdev.name = "tosa-ssp",
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.qdev.size = sizeof(SSISlave),
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.init = tosa_ssp_init,
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.transfer = tosa_ssp_tansfer
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};
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static void tosa_register_devices(void)
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{
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i2c_register_slave(&tosa_dac_info);
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ssi_register_slave(&tosa_ssp_info);
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}
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device_init(tosa_register_devices)
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