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ARM: mach-shmobile: ap4evb: Add FSI2 support
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Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Kuninori Morimoto authored and Paul Mundt committed May 31, 2010
1 parent 69bf6f4 commit cb9215e
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Showing 2 changed files with 135 additions and 4 deletions.
135 changes: 132 additions & 3 deletions arch/arm/mach-shmobile/board-ap4evb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,11 +32,15 @@
#include <linux/i2c/tsc2007.h>
#include <linux/io.h>
#include <linux/smsc911x.h>
#include <linux/sh_intc.h>
#include <linux/sh_clk.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/usb/r8a66597.h>

#include <sound/sh_fsi.h>

#include <video/sh_mobile_lcdc.h>
#include <video/sh_mipi_dsi.h>

Expand Down Expand Up @@ -113,6 +117,13 @@
* S39: bit2: off
*/

/*
* FSI/FSMI
*
* SW41 : ON : SH-Mobile AP4 Audio Mode
* : OFF : Bluetooth Audio Mode
*/

/* MTD */
static struct mtd_partition nor_flash_partitions[] = {
{
Expand Down Expand Up @@ -373,6 +384,60 @@ static struct platform_device mipidsi0_device = {
},
};

/* FSI */
#define IRQ_FSI evt2irq(0x1840)
#define FSIACKCR 0xE6150018
static void fsiackcr_init(struct clk *clk)
{
u32 status = __raw_readl(clk->enable_reg);

/* use external clock */
status &= ~0x000000ff;
status |= 0x00000080;
__raw_writel(status, clk->enable_reg);
}

static struct clk_ops fsiackcr_clk_ops = {
.init = fsiackcr_init,
};

static struct clk fsiackcr_clk = {
.ops = &fsiackcr_clk_ops,
.enable_reg = (void __iomem *)FSIACKCR,
.rate = 0, /* unknown */
};

struct sh_fsi_platform_info fsi_info = {
.porta_flags = SH_FSI_BRS_INV |
SH_FSI_OUT_SLAVE_MODE |
SH_FSI_IN_SLAVE_MODE |
SH_FSI_OFMT(PCM) |
SH_FSI_IFMT(PCM),
};

static struct resource fsi_resources[] = {
[0] = {
.name = "FSI",
.start = 0xFE3C0000,
.end = 0xFE3C0400 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_FSI,
.flags = IORESOURCE_IRQ,
},
};

static struct platform_device fsi_device = {
.name = "sh_fsi2",
.id = 0,
.num_resources = ARRAY_SIZE(fsi_resources),
.resource = fsi_resources,
.dev = {
.platform_data = &fsi_info,
},
};

static struct platform_device *ap4evb_devices[] __initdata = {
&nor_flash_device,
&smc911x_device,
Expand All @@ -381,6 +446,7 @@ static struct platform_device *ap4evb_devices[] __initdata = {
&usb1_host_device,
&lcdc_device,
&mipidsi0_device,
&fsi_device,
};

/* TouchScreen (Needs SW3 set to OFF) */
Expand All @@ -391,6 +457,12 @@ struct tsc2007_platform_data tsc2007_info = {
};

/* I2C */
static struct i2c_board_info i2c0_devices[] = {
{
I2C_BOARD_INFO("ak4643", 0x13),
},
};

static struct i2c_board_info i2c1_devices[] = {
{
I2C_BOARD_INFO("r2025sd", 0x32),
Expand Down Expand Up @@ -463,8 +535,27 @@ static int __init ap4evb_init_display_clk(void)

device_initcall(ap4evb_init_display_clk);

/*
* FIXME !!
*
* gpio_no_direction is quick_hack.
*
* current gpio frame work doesn't have
* the method to control only pull up/down/free.
* this function should be replaced by correct gpio function
*/
static void __init gpio_no_direction(u32 addr)
{
__raw_writeb(0x00, addr);
}

#define GPIO_PORT9CR 0xE6051009
#define GPIO_PORT10CR 0xE605100A

static void __init ap4evb_init(void)
{
struct clk *clk;

sh7372_pinmux_init();

/* enable SCIFA0 */
Expand Down Expand Up @@ -529,9 +620,6 @@ static void __init ap4evb_init(void)
gpio_request(GPIO_FN_IRQ28_123, NULL);
set_irq_type(IRQ28, IRQ_TYPE_LEVEL_LOW);

i2c_register_board_info(1, i2c1_devices,
ARRAY_SIZE(i2c1_devices));

/* USB enable */
gpio_request(GPIO_FN_VBUS0_1, NULL);
gpio_request(GPIO_FN_IDIN_1_18, NULL);
Expand All @@ -543,6 +631,47 @@ static void __init ap4evb_init(void)
/* setup USB phy */
__raw_writew(0x8a0a, 0xE6058130); /* USBCR2 */

/* enable FSI2 */
gpio_request(GPIO_FN_FSIAIBT, NULL);
gpio_request(GPIO_FN_FSIAILR, NULL);
gpio_request(GPIO_FN_FSIAISLD, NULL);
gpio_request(GPIO_FN_FSIAOSLD, NULL);
gpio_request(GPIO_PORT161, NULL);
gpio_direction_output(GPIO_PORT161, 0); /* slave */

gpio_request(GPIO_PORT9, NULL);
gpio_request(GPIO_PORT10, NULL);
gpio_no_direction(GPIO_PORT9CR); /* FSIAOBT needs no direction */
gpio_no_direction(GPIO_PORT10CR); /* FSIAOLR needs no direction */

/* set SPU2 clock to 119.6 MHz */
clk = clk_get(NULL, "spu_clk");
if (!IS_ERR_VALUE(clk)) {
clk_set_rate(clk, clk_round_rate(clk, 119600000));
clk_put(clk);
}

/* change parent of FSI A */
clk = clk_get(NULL, "fsia_clk");
if (!IS_ERR_VALUE(clk)) {
clk_register(&fsiackcr_clk);
clk_set_parent(clk, &fsiackcr_clk);
clk_put(clk);
}

/*
* set irq priority, to avoid sound chopping
* when NFS rootfs is used
* FSI(3) > SMSC911X(2)
*/
intc_set_priority(IRQ_FSI, 3);

i2c_register_board_info(0, i2c0_devices,
ARRAY_SIZE(i2c0_devices));

i2c_register_board_info(1, i2c1_devices,
ARRAY_SIZE(i2c1_devices));

sh7372_add_standard_devices();

platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
Expand Down
4 changes: 3 additions & 1 deletion arch/arm/mach-shmobile/clock-sh7372.c
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Original file line number Diff line number Diff line change
Expand Up @@ -246,7 +246,7 @@ enum { MSTP001,
MSTP106, MSTP101, MSTP100,
MSTP223,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP329, MSTP323, MSTP322, MSTP314, MSTP313,
MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313,
MSTP415, MSTP410, MSTP411, MSTP406, MSTP403,
MSTP_NR };

Expand Down Expand Up @@ -274,6 +274,7 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
[MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
[MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
[MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, CLK_ENABLE_ON_INIT), /* FSIA */
[MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */
[MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */
[MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */
Expand Down Expand Up @@ -356,6 +357,7 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
CLKDEV_CON_ID("cmt1", &mstp_clks[MSTP329]), /* CMT10 */
CLKDEV_DEV_ID("sh_fsi", &mstp_clks[MSTP328]), /* FSI */
CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* IIC1 */
CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP323]), /* USB0 */
CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[MSTP323]), /* USB0 */
Expand Down

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