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linuxdebug/arch/sh/boards/mach-migor/setup.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
/*
* Renesas System Solutions Asia Pte. Ltd - Migo-R
*
* Copyright (C) 2008 Magnus Damm
*/
#include <linux/clkdev.h>
#include <linux/dma-map-ops.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/memblock.h>
#include <linux/mmc/host.h>
#include <linux/mtd/physmap.h>
#include <linux/mfd/tmio.h>
#include <linux/mtd/platnand.h>
#include <linux/i2c.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/smc91x.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/videodev2.h>
#include <linux/sh_intc.h>
#include <video/sh_mobile_lcdc.h>
#include <media/drv-intf/renesas-ceu.h>
#include <media/i2c/ov772x.h>
#include <media/i2c/tw9910.h>
#include <asm/clock.h>
#include <asm/machvec.h>
#include <asm/io.h>
#include <asm/suspend.h>
#include <mach/migor.h>
#include <cpu/sh7722.h>
/* Address IRQ Size Bus Description
* 0x00000000 64MB 16 NOR Flash (SP29PL256N)
* 0x0c000000 64MB 64 SDRAM (2xK4M563233G)
* 0x10000000 IRQ0 16 Ethernet (SMC91C111)
* 0x14000000 IRQ4 16 USB 2.0 Host Controller (M66596)
* 0x18000000 8GB 8 NAND Flash (K9K8G08U0A)
*/
#define CEU_BUFFER_MEMORY_SIZE (4 << 20)
static phys_addr_t ceu_dma_membase;
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
};
static struct resource smc91x_eth_resources[] = {
[0] = {
.name = "SMC91C111" ,
.start = 0x10000300,
.end = 0x1000030f,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x600), /* IRQ0 */
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
},
};
static struct platform_device smc91x_eth_device = {
.name = "smc91x",
.num_resources = ARRAY_SIZE(smc91x_eth_resources),
.resource = smc91x_eth_resources,
.dev = {
.platform_data = &smc91x_info,
},
};
static struct sh_keysc_info sh_keysc_info = {
.mode = SH_KEYSC_MODE_2, /* KEYOUT0->4, KEYIN1->5 */
.scan_timing = 3,
.delay = 5,
.keycodes = {
0, KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_ENTER,
0, KEY_F, KEY_C, KEY_D, KEY_H, KEY_1,
0, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
0, KEY_7, KEY_8, KEY_9, KEY_S, KEY_0,
0, KEY_P, KEY_STOP, KEY_REWIND, KEY_PLAY, KEY_FASTFORWARD,
},
};
static struct resource sh_keysc_resources[] = {
[0] = {
.start = 0x044b0000,
.end = 0x044b000f,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0xbe0),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sh_keysc_device = {
.name = "sh_keysc",
.id = 0, /* "keysc0" clock */
.num_resources = ARRAY_SIZE(sh_keysc_resources),
.resource = sh_keysc_resources,
.dev = {
.platform_data = &sh_keysc_info,
},
};
static struct mtd_partition migor_nor_flash_partitions[] =
{
{
.name = "uboot",
.offset = 0,
.size = (1 * 1024 * 1024),
.mask_flags = MTD_WRITEABLE, /* Read-only */
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND,
.size = (15 * 1024 * 1024),
},
{
.name = "other",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data migor_nor_flash_data = {
.width = 2,
.parts = migor_nor_flash_partitions,
.nr_parts = ARRAY_SIZE(migor_nor_flash_partitions),
};
static struct resource migor_nor_flash_resources[] = {
[0] = {
.name = "NOR Flash",
.start = 0x00000000,
.end = 0x03ffffff,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device migor_nor_flash_device = {
.name = "physmap-flash",
.resource = migor_nor_flash_resources,
.num_resources = ARRAY_SIZE(migor_nor_flash_resources),
.dev = {
.platform_data = &migor_nor_flash_data,
},
};
static struct mtd_partition migor_nand_flash_partitions[] = {
{
.name = "nanddata1",
.offset = 0x0,
.size = 512 * 1024 * 1024,
},
{
.name = "nanddata2",
.offset = MTDPART_OFS_APPEND,
.size = 512 * 1024 * 1024,
},
};
static void migor_nand_flash_cmd_ctl(struct nand_chip *chip, int cmd,
unsigned int ctrl)
{
if (cmd == NAND_CMD_NONE)
return;
if (ctrl & NAND_CLE)
writeb(cmd, chip->legacy.IO_ADDR_W + 0x00400000);
else if (ctrl & NAND_ALE)
writeb(cmd, chip->legacy.IO_ADDR_W + 0x00800000);
else
writeb(cmd, chip->legacy.IO_ADDR_W);
}
static int migor_nand_flash_ready(struct nand_chip *chip)
{
return gpio_get_value(GPIO_PTA1); /* NAND_RBn */
}
static struct platform_nand_data migor_nand_flash_data = {
.chip = {
.nr_chips = 1,
.partitions = migor_nand_flash_partitions,
.nr_partitions = ARRAY_SIZE(migor_nand_flash_partitions),
.chip_delay = 20,
},
.ctrl = {
.dev_ready = migor_nand_flash_ready,
.cmd_ctrl = migor_nand_flash_cmd_ctl,
},
};
static struct resource migor_nand_flash_resources[] = {
[0] = {
.name = "NAND Flash",
.start = 0x18000000,
.end = 0x18ffffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device migor_nand_flash_device = {
.name = "gen_nand",
.resource = migor_nand_flash_resources,
.num_resources = ARRAY_SIZE(migor_nand_flash_resources),
.dev = {
.platform_data = &migor_nand_flash_data,
}
};
static const struct fb_videomode migor_lcd_modes[] = {
{
#if defined(CONFIG_SH_MIGOR_RTA_WVGA)
.name = "LB070WV1",
.xres = 800,
.yres = 480,
.left_margin = 64,
.right_margin = 16,
.hsync_len = 120,
.sync = 0,
#elif defined(CONFIG_SH_MIGOR_QVGA)
.name = "PH240320T",
.xres = 320,
.yres = 240,
.left_margin = 0,
.right_margin = 16,
.hsync_len = 8,
.sync = FB_SYNC_HOR_HIGH_ACT,
#endif
.upper_margin = 1,
.lower_margin = 17,
.vsync_len = 2,
},
};
static struct sh_mobile_lcdc_info sh_mobile_lcdc_info = {
#if defined(CONFIG_SH_MIGOR_RTA_WVGA)
.clock_source = LCDC_CLK_BUS,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
.fourcc = V4L2_PIX_FMT_RGB565,
.interface_type = RGB16,
.clock_divider = 2,
.lcd_modes = migor_lcd_modes,
.num_modes = ARRAY_SIZE(migor_lcd_modes),
.panel_cfg = { /* 7.0 inch */
.width = 152,
.height = 91,
},
}
#elif defined(CONFIG_SH_MIGOR_QVGA)
.clock_source = LCDC_CLK_PERIPHERAL,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
.fourcc = V4L2_PIX_FMT_RGB565,
.interface_type = SYS16A,
.clock_divider = 10,
.lcd_modes = migor_lcd_modes,
.num_modes = ARRAY_SIZE(migor_lcd_modes),
.panel_cfg = {
.width = 49, /* 2.4 inch */
.height = 37,
.setup_sys = migor_lcd_qvga_setup,
},
.sys_bus_cfg = {
.ldmt2r = 0x06000a09,
.ldmt3r = 0x180e3418,
/* set 1s delay to encourage fsync() */
.deferred_io_msec = 1000,
},
}
#endif
};
static struct resource migor_lcdc_resources[] = {
[0] = {
.name = "LCDC",
.start = 0xfe940000, /* P4-only space */
.end = 0xfe942fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x580),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device migor_lcdc_device = {
.name = "sh_mobile_lcdc_fb",
.num_resources = ARRAY_SIZE(migor_lcdc_resources),
.resource = migor_lcdc_resources,
.dev = {
.platform_data = &sh_mobile_lcdc_info,
},
};
static struct ceu_platform_data ceu_pdata = {
.num_subdevs = 2,
.subdevs = {
{ /* [0] = ov772x */
.flags = 0,
.bus_width = 8,
.bus_shift = 0,
.i2c_adapter_id = 0,
.i2c_address = 0x21,
},
{ /* [1] = tw9910 */
.flags = 0,
.bus_width = 8,
.bus_shift = 0,
.i2c_adapter_id = 0,
.i2c_address = 0x45,
},
},
};
static struct resource migor_ceu_resources[] = {
[0] = {
.name = "CEU",
.start = 0xfe910000,
.end = 0xfe91009f,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x880),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device migor_ceu_device = {
.name = "renesas-ceu",
.id = 0, /* ceu.0 */
.num_resources = ARRAY_SIZE(migor_ceu_resources),
.resource = migor_ceu_resources,
.dev = {
.platform_data = &ceu_pdata,
},
};
/* Powerdown/reset gpios for CEU image sensors */
static struct gpiod_lookup_table ov7725_gpios = {
.dev_id = "0-0021",
.table = {
GPIO_LOOKUP("sh7722_pfc", GPIO_PTT0, "powerdown",
GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("sh7722_pfc", GPIO_PTT3, "reset", GPIO_ACTIVE_LOW),
},
};
static struct gpiod_lookup_table tw9910_gpios = {
.dev_id = "0-0045",
.table = {
GPIO_LOOKUP("sh7722_pfc", GPIO_PTT2, "pdn", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("sh7722_pfc", GPIO_PTT3, "rstb", GPIO_ACTIVE_LOW),
},
};
/* Fixed 3.3V regulator to be used by SDHI0 */
static struct regulator_consumer_supply fixed3v3_power_consumers[] =
{
REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
};
static struct resource sdhi_cn9_resources[] = {
[0] = {
.name = "SDHI",
.start = 0x04ce0000,
.end = 0x04ce00ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0xe80),
.flags = IORESOURCE_IRQ,
},
};
static struct tmio_mmc_data sh7724_sdhi_data = {
.chan_priv_tx = (void *)SHDMA_SLAVE_SDHI0_TX,
.chan_priv_rx = (void *)SHDMA_SLAVE_SDHI0_RX,
.capabilities = MMC_CAP_SDIO_IRQ,
};
static struct platform_device sdhi_cn9_device = {
.name = "sh_mobile_sdhi",
.num_resources = ARRAY_SIZE(sdhi_cn9_resources),
.resource = sdhi_cn9_resources,
.dev = {
.platform_data = &sh7724_sdhi_data,
},
};
static struct ov772x_camera_info ov7725_info = {
.flags = 0,
};
static struct tw9910_video_info tw9910_info = {
.buswidth = 8,
.mpout = TW9910_MPO_FIELD,
};
static struct i2c_board_info migor_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372b", 0x32),
},
{
I2C_BOARD_INFO("migor_ts", 0x51),
.irq = evt2irq(0x6c0), /* IRQ6 */
},
{
I2C_BOARD_INFO("wm8978", 0x1a),
},
{
I2C_BOARD_INFO("ov772x", 0x21),
.platform_data = &ov7725_info,
},
{
I2C_BOARD_INFO("tw9910", 0x45),
.platform_data = &tw9910_info,
},
};
static struct platform_device *migor_devices[] __initdata = {
&smc91x_eth_device,
&sh_keysc_device,
&migor_lcdc_device,
&migor_nor_flash_device,
&migor_nand_flash_device,
&sdhi_cn9_device,
};
extern char migor_sdram_enter_start;
extern char migor_sdram_enter_end;
extern char migor_sdram_leave_start;
extern char migor_sdram_leave_end;
static int __init migor_devices_setup(void)
{
struct clk *video_clk;
/* register board specific self-refresh code */
sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF,
&migor_sdram_enter_start,
&migor_sdram_enter_end,
&migor_sdram_leave_start,
&migor_sdram_leave_end);
regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
/* Let D11 LED show STATUS0 */
gpio_request(GPIO_FN_STATUS0, NULL);
/* Lit D12 LED show PDSTATUS */
gpio_request(GPIO_FN_PDSTATUS, NULL);
/* SMC91C111 - Enable IRQ0, Setup CS4 for 16-bit fast access */
gpio_request(GPIO_FN_IRQ0, NULL);
__raw_writel(0x00003400, BSC_CS4BCR);
__raw_writel(0x00110080, BSC_CS4WCR);
/* KEYSC */
gpio_request(GPIO_FN_KEYOUT0, NULL);
gpio_request(GPIO_FN_KEYOUT1, NULL);
gpio_request(GPIO_FN_KEYOUT2, NULL);
gpio_request(GPIO_FN_KEYOUT3, NULL);
gpio_request(GPIO_FN_KEYOUT4_IN6, NULL);
gpio_request(GPIO_FN_KEYIN1, NULL);
gpio_request(GPIO_FN_KEYIN2, NULL);
gpio_request(GPIO_FN_KEYIN3, NULL);
gpio_request(GPIO_FN_KEYIN4, NULL);
gpio_request(GPIO_FN_KEYOUT5_IN5, NULL);
/* NAND Flash */
gpio_request(GPIO_FN_CS6A_CE2B, NULL);
__raw_writel((__raw_readl(BSC_CS6ABCR) & ~0x0600) | 0x0200, BSC_CS6ABCR);
gpio_request(GPIO_PTA1, NULL);
gpio_direction_input(GPIO_PTA1);
/* SDHI */
gpio_request(GPIO_FN_SDHICD, NULL);
gpio_request(GPIO_FN_SDHIWP, NULL);
gpio_request(GPIO_FN_SDHID3, NULL);
gpio_request(GPIO_FN_SDHID2, NULL);
gpio_request(GPIO_FN_SDHID1, NULL);
gpio_request(GPIO_FN_SDHID0, NULL);
gpio_request(GPIO_FN_SDHICMD, NULL);
gpio_request(GPIO_FN_SDHICLK, NULL);
/* Touch Panel */
gpio_request(GPIO_FN_IRQ6, NULL);
/* LCD Panel */
#ifdef CONFIG_SH_MIGOR_QVGA /* LCDC - QVGA - Enable SYS Interface signals */
gpio_request(GPIO_FN_LCDD17, NULL);
gpio_request(GPIO_FN_LCDD16, NULL);
gpio_request(GPIO_FN_LCDD15, NULL);
gpio_request(GPIO_FN_LCDD14, NULL);
gpio_request(GPIO_FN_LCDD13, NULL);
gpio_request(GPIO_FN_LCDD12, NULL);
gpio_request(GPIO_FN_LCDD11, NULL);
gpio_request(GPIO_FN_LCDD10, NULL);
gpio_request(GPIO_FN_LCDD8, NULL);
gpio_request(GPIO_FN_LCDD7, NULL);
gpio_request(GPIO_FN_LCDD6, NULL);
gpio_request(GPIO_FN_LCDD5, NULL);
gpio_request(GPIO_FN_LCDD4, NULL);
gpio_request(GPIO_FN_LCDD3, NULL);
gpio_request(GPIO_FN_LCDD2, NULL);
gpio_request(GPIO_FN_LCDD1, NULL);
gpio_request(GPIO_FN_LCDRS, NULL);
gpio_request(GPIO_FN_LCDCS, NULL);
gpio_request(GPIO_FN_LCDRD, NULL);
gpio_request(GPIO_FN_LCDWR, NULL);
gpio_request(GPIO_PTH2, NULL); /* LCD_DON */
gpio_direction_output(GPIO_PTH2, 1);
#endif
#ifdef CONFIG_SH_MIGOR_RTA_WVGA /* LCDC - WVGA - Enable RGB Interface signals */
gpio_request(GPIO_FN_LCDD15, NULL);
gpio_request(GPIO_FN_LCDD14, NULL);
gpio_request(GPIO_FN_LCDD13, NULL);
gpio_request(GPIO_FN_LCDD12, NULL);
gpio_request(GPIO_FN_LCDD11, NULL);
gpio_request(GPIO_FN_LCDD10, NULL);
gpio_request(GPIO_FN_LCDD9, NULL);
gpio_request(GPIO_FN_LCDD8, NULL);
gpio_request(GPIO_FN_LCDD7, NULL);
gpio_request(GPIO_FN_LCDD6, NULL);
gpio_request(GPIO_FN_LCDD5, NULL);
gpio_request(GPIO_FN_LCDD4, NULL);
gpio_request(GPIO_FN_LCDD3, NULL);
gpio_request(GPIO_FN_LCDD2, NULL);
gpio_request(GPIO_FN_LCDD1, NULL);
gpio_request(GPIO_FN_LCDD0, NULL);
gpio_request(GPIO_FN_LCDLCLK, NULL);
gpio_request(GPIO_FN_LCDDCK, NULL);
gpio_request(GPIO_FN_LCDVEPWC, NULL);
gpio_request(GPIO_FN_LCDVCPWC, NULL);
gpio_request(GPIO_FN_LCDVSYN, NULL);
gpio_request(GPIO_FN_LCDHSYN, NULL);
gpio_request(GPIO_FN_LCDDISP, NULL);
gpio_request(GPIO_FN_LCDDON, NULL);
#endif
/* CEU */
gpio_request(GPIO_FN_VIO_CLK2, NULL);
gpio_request(GPIO_FN_VIO_VD2, NULL);
gpio_request(GPIO_FN_VIO_HD2, NULL);
gpio_request(GPIO_FN_VIO_FLD, NULL);
gpio_request(GPIO_FN_VIO_CKO, NULL);
gpio_request(GPIO_FN_VIO_D15, NULL);
gpio_request(GPIO_FN_VIO_D14, NULL);
gpio_request(GPIO_FN_VIO_D13, NULL);
gpio_request(GPIO_FN_VIO_D12, NULL);
gpio_request(GPIO_FN_VIO_D11, NULL);
gpio_request(GPIO_FN_VIO_D10, NULL);
gpio_request(GPIO_FN_VIO_D9, NULL);
gpio_request(GPIO_FN_VIO_D8, NULL);
__raw_writew(__raw_readw(PORT_MSELCRB) | 0x2000, PORT_MSELCRB); /* D15->D8 */
/* SIU: Port B */
gpio_request(GPIO_FN_SIUBOLR, NULL);
gpio_request(GPIO_FN_SIUBOBT, NULL);
gpio_request(GPIO_FN_SIUBISLD, NULL);
gpio_request(GPIO_FN_SIUBOSLD, NULL);
gpio_request(GPIO_FN_SIUMCKB, NULL);
/*
* The original driver sets SIUB OLR/OBT, ILR/IBT, and SIUA OLR/OBT to
* output. Need only SIUB, set to output for master mode (table 34.2)
*/
__raw_writew(__raw_readw(PORT_MSELCRA) | 1, PORT_MSELCRA);
/*
* Use 10 MHz VIO_CKO instead of 24 MHz to work around signal quality
* issues on Panel Board V2.1.
*/
video_clk = clk_get(NULL, "video_clk");
if (!IS_ERR(video_clk)) {
clk_set_rate(video_clk, clk_round_rate(video_clk, 10000000));
clk_put(video_clk);
}
/* Add a clock alias for ov7725 xclk source. */
clk_add_alias(NULL, "0-0021", "video_clk", NULL);
/* Register GPIOs for video sources. */
gpiod_add_lookup_table(&ov7725_gpios);
gpiod_add_lookup_table(&tw9910_gpios);
i2c_register_board_info(0, migor_i2c_devices,
ARRAY_SIZE(migor_i2c_devices));
/* Initialize CEU platform device separately to map memory first */
device_initialize(&migor_ceu_device.dev);
dma_declare_coherent_memory(&migor_ceu_device.dev,
ceu_dma_membase, ceu_dma_membase,
CEU_BUFFER_MEMORY_SIZE);
platform_device_add(&migor_ceu_device);
return platform_add_devices(migor_devices, ARRAY_SIZE(migor_devices));
}
arch_initcall(migor_devices_setup);
/* Return the board specific boot mode pin configuration */
static int migor_mode_pins(void)
{
/* MD0=1, MD1=1, MD2=0: Clock Mode 3
* MD3=0: 16-bit Area0 Bus Width
* MD5=1: Little Endian
* TSTMD=1, MD8=0: Test Mode Disabled
*/
return MODE_PIN0 | MODE_PIN1 | MODE_PIN5;
}
/* Reserve a portion of memory for CEU buffers */
static void __init migor_mv_mem_reserve(void)
{
phys_addr_t phys;
phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
phys = memblock_phys_alloc(size, PAGE_SIZE);
if (!phys)
panic("Failed to allocate CEU memory\n");
memblock_phys_free(phys, size);
memblock_remove(phys, size);
ceu_dma_membase = phys;
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_migor __initmv = {
.mv_name = "Migo-R",
.mv_mode_pins = migor_mode_pins,
.mv_mem_reserve = migor_mv_mem_reserve,
};