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i.MX35 3stack: adopt board to new mc13892 and mc9sdz60 driver interface 

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2009-12-09 02:17:56 +01:00
parent 23f4449b78
commit c23a05d01d
1 changed files with 54 additions and 45 deletions
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99
board/freescale-mx35-3-stack/3stack.c
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@ -157,7 +157,7 @@ static int f3s_devices_init(void)
reg = readl(IMX_CCM_BASE + CCM_RCSR);
/* some fuses provide us vital information about connected hardware */
if (reg & 0x20000000)
nand_info.width = 2; /* bit */
nand_info.width = 2; /* 16 bit */
else
nand_info.width = 1; /* 8 bit */
@ -358,74 +358,84 @@ static int f3s_core_init(void)
core_initcall(f3s_core_init);
static int f3s_get_rev(struct i2c_client *client)
static int f3s_get_rev(struct mc13892 *mc13892)
{
u8 reg[3];
int rev;
u32 rev;
int err;
i2c_read_reg(client, 0x7, reg, sizeof(reg));
err = mc13892_reg_read(mc13892, MC13892_REG_IDENTIFICATION, &rev);
if (err)
return err;
rev = reg[0] << 16 | reg [1] << 8 | reg[2];
dev_info(&client->dev, "revision: 0x%x\n", rev);
dev_info(&mc13892->client->dev, "revision: 0x%x\n", rev);
if (rev == 0x00ffffff)
return -ENODEV;
/* just return '0' or '1' */
return !!((rev >> 6) & 0x7);
return ((rev >> 6) & 0x7) ? 20 : 10;
}
static void f3s_pmic_init_v2(struct i2c_client *client)
static int f3s_pmic_init_v2(struct mc13892 *mc13892)
{
u8 reg[3];
int err = 0;
i2c_read_reg(client, 0x1e, reg, sizeof(reg));
reg[2] |= 0x03;
i2c_write_reg(client, 0x1e, reg, sizeof(reg));
err |= mc13892_set_bits(mc13892, MC13892_REG_SETTING_0, 0x03, 0x03);
err |= mc13892_set_bits(mc13892, MC13892_REG_MODE_0, 0x01, 0x01);
if (err)
dev_err(&mc13892->client->dev,
"Init sequence failed, the system might not be working!\n");
i2c_read_reg(client, 0x20, reg, sizeof(reg));
reg[2] |= 0x01;
i2c_write_reg(client, 0x20, reg, sizeof(reg));
return err;
}
static void f3s_pmic_init_all(struct i2c_client *client)
static int f3s_pmic_init_all(struct mc9sdz60 *mc9sdz60)
{
u8 reg[1];
int err = 0;
i2c_read_reg(client, 0x20, reg, sizeof(reg));
reg[0] |= 0x04;
i2c_write_reg(client, 0x20, reg, sizeof(reg));
err |= mc9sdz60_set_bits(mc9sdz60, MC9SDZ60_REG_INT_FLAG_1, 0x04, 0x04);
err |= mc9sdz60_set_bits(mc9sdz60, MC9SDZ60_REG_GPIO_2, 0x80, 0x00);
mdelay(200);
err |= mc9sdz60_set_bits(mc9sdz60, MC9SDZ60_REG_GPIO_2, 0x80, 0x80);
i2c_read_reg(client, 0x1a, reg, sizeof(reg));
reg[0] &= 0x7f;
i2c_write_reg(client, 0x1a, reg, sizeof(reg));
if (err)
dev_err(&mc9sdz60->client->dev,
"Init sequence failed, the system might not be working!\n");
mdelay(200);
reg[0] |= 0x80;
i2c_write_reg(client, 0x1a, reg, sizeof(reg));
return err;
}
static int f3s_pmic_init(void)
{
struct i2c_client *client;
struct mc13892 *mc13892;
struct mc9sdz60 *mc9sdz60;
int rev;
client = mc13892_get_client();
if (!client)
return -ENODEV;
rev = f3s_get_rev(client);
if (rev) {
printf("i.MX35 CPU board version 2.0\n");
f3s_pmic_init_v2(client);
} else {
printf("i.MX35 CPU board version 1.0\n");
mc13892 = mc13892_get();
if (!mc13892) {
printf("FAILED to get mc13892 handle!\n");
return 0;
}
client = mc9sdz60_get_client();
if (!client)
return -ENODEV;
f3s_pmic_init_all(client);
rev = f3s_get_rev(mc13892);
switch (rev) {
case 10:
break;
case 20:
f3s_pmic_init_v2(mc13892);
break;
default:
printf("FAILED to identify board revision!\n");
return 0;
}
printf("i.MX35 PDK CPU board version %d.%d\n", rev / 10, rev % 10);
mc9sdz60 = mc9sdz60_get();
if (!mc9sdz60) {
printf("FAILED to get mc9sdz60 handle!\n");
return 0;
}
f3s_pmic_init_all(mc9sdz60);
return 0;
}
@ -442,4 +452,3 @@ void __bare_init nand_boot(void)
imx_nand_load_image((void *)TEXT_BASE, 256 * 1024);
}
#endif