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-rw-r--r--arch/arm/mach-omap2/cm-regbits-24xx.h4
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2420_data.c145
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2430_data.c155
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_3xxx_data.c233
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_44xx_data.c237
-rw-r--r--arch/arm/mach-omap2/prm-regbits-34xx.h3
-rw-r--r--arch/arm/plat-omap/i2c.c124
-rw-r--r--arch/arm/plat-omap/include/plat/i2c.h13
-rw-r--r--arch/arm/plat-omap/include/plat/l4_3xxx.h24
-rw-r--r--drivers/i2c/busses/i2c-omap.c69
-rw-r--r--include/linux/i2c-omap.h5
11 files changed, 886 insertions, 126 deletions
diff --git a/arch/arm/mach-omap2/cm-regbits-24xx.h b/arch/arm/mach-omap2/cm-regbits-24xx.h
index da51cc3ed7e..9a106c04c4a 100644
--- a/arch/arm/mach-omap2/cm-regbits-24xx.h
+++ b/arch/arm/mach-omap2/cm-regbits-24xx.h
@@ -126,8 +126,12 @@
#define OMAP24XX_ST_HDQ_MASK (1 << 23)
#define OMAP2420_ST_I2C2_SHIFT 20
#define OMAP2420_ST_I2C2_MASK (1 << 20)
+#define OMAP2430_ST_I2CHS1_SHIFT 19
+#define OMAP2430_ST_I2CHS1_MASK (1 << 19)
#define OMAP2420_ST_I2C1_SHIFT 19
#define OMAP2420_ST_I2C1_MASK (1 << 19)
+#define OMAP2430_ST_I2CHS2_SHIFT 20
+#define OMAP2430_ST_I2CHS2_MASK (1 << 20)
#define OMAP24XX_ST_MCBSP2_SHIFT 16
#define OMAP24XX_ST_MCBSP2_MASK (1 << 16)
#define OMAP24XX_ST_MCBSP1_SHIFT 15
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index adf6e3632a2..a1a3dd6303b 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -16,11 +16,13 @@
#include <plat/cpu.h>
#include <plat/dma.h>
#include <plat/serial.h>
+#include <plat/i2c.h>
+#include <plat/omap24xx.h>
#include "omap_hwmod_common_data.h"
-#include "prm-regbits-24xx.h"
#include "cm-regbits-24xx.h"
+#include "prm-regbits-24xx.h"
/*
* OMAP2420 hardware module integration data
@@ -77,6 +79,8 @@ static struct omap_hwmod omap2420_l4_wkup_hwmod;
static struct omap_hwmod omap2420_uart1_hwmod;
static struct omap_hwmod omap2420_uart2_hwmod;
static struct omap_hwmod omap2420_uart3_hwmod;
+static struct omap_hwmod omap2420_i2c1_hwmod;
+static struct omap_hwmod omap2420_i2c2_hwmod;
/* L4_CORE -> L4_WKUP interface */
static struct omap_hwmod_ocp_if omap2420_l4_core__l4_wkup = {
@@ -139,6 +143,45 @@ static struct omap_hwmod_ocp_if omap2_l4_core__uart3 = {
.user = OCP_USER_MPU | OCP_USER_SDMA,
};
+/* I2C IP block address space length (in bytes) */
+#define OMAP2_I2C_AS_LEN 128
+
+/* L4 CORE -> I2C1 interface */
+static struct omap_hwmod_addr_space omap2420_i2c1_addr_space[] = {
+ {
+ .pa_start = 0x48070000,
+ .pa_end = 0x48070000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2420_l4_core__i2c1 = {
+ .master = &omap2420_l4_core_hwmod,
+ .slave = &omap2420_i2c1_hwmod,
+ .clk = "i2c1_ick",
+ .addr = omap2420_i2c1_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2420_i2c1_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* L4 CORE -> I2C2 interface */
+static struct omap_hwmod_addr_space omap2420_i2c2_addr_space[] = {
+ {
+ .pa_start = 0x48072000,
+ .pa_end = 0x48072000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2420_l4_core__i2c2 = {
+ .master = &omap2420_l4_core_hwmod,
+ .slave = &omap2420_i2c2_hwmod,
+ .clk = "i2c2_ick",
+ .addr = omap2420_i2c2_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2420_i2c2_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
/* Slave interfaces on the L4_CORE interconnect */
static struct omap_hwmod_ocp_if *omap2420_l4_core_slaves[] = {
&omap2420_l3_main__l4_core,
@@ -150,6 +193,8 @@ static struct omap_hwmod_ocp_if *omap2420_l4_core_masters[] = {
&omap2_l4_core__uart1,
&omap2_l4_core__uart2,
&omap2_l4_core__uart3,
+ &omap2420_l4_core__i2c1,
+ &omap2420_l4_core__i2c2
};
/* L4 CORE */
@@ -418,6 +463,100 @@ static struct omap_hwmod omap2420_uart3_hwmod = {
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
+/* I2C common */
+static struct omap_hwmod_class_sysconfig i2c_sysc = {
+ .rev_offs = 0x00,
+ .sysc_offs = 0x20,
+ .syss_offs = 0x10,
+ .sysc_flags = SYSC_HAS_SOFTRESET,
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class i2c_class = {
+ .name = "i2c",
+ .sysc = &i2c_sysc,
+};
+
+static struct omap_i2c_dev_attr i2c_dev_attr;
+
+/* I2C1 */
+
+static struct omap_hwmod_irq_info i2c1_mpu_irqs[] = {
+ { .irq = INT_24XX_I2C1_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c1_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP24XX_DMA_I2C1_TX },
+ { .name = "rx", .dma_req = OMAP24XX_DMA_I2C1_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap2420_i2c1_slaves[] = {
+ &omap2420_l4_core__i2c1,
+};
+
+static struct omap_hwmod omap2420_i2c1_hwmod = {
+ .name = "i2c1",
+ .mpu_irqs = i2c1_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c1_mpu_irqs),
+ .sdma_reqs = i2c1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c1_sdma_reqs),
+ .main_clk = "i2c1_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP2420_EN_I2C1_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP2420_ST_I2C1_SHIFT,
+ },
+ },
+ .slaves = omap2420_i2c1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2420_i2c1_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+ .flags = HWMOD_16BIT_REG,
+};
+
+/* I2C2 */
+
+static struct omap_hwmod_irq_info i2c2_mpu_irqs[] = {
+ { .irq = INT_24XX_I2C2_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c2_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP24XX_DMA_I2C2_TX },
+ { .name = "rx", .dma_req = OMAP24XX_DMA_I2C2_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap2420_i2c2_slaves[] = {
+ &omap2420_l4_core__i2c2,
+};
+
+static struct omap_hwmod omap2420_i2c2_hwmod = {
+ .name = "i2c2",
+ .mpu_irqs = i2c2_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c2_mpu_irqs),
+ .sdma_reqs = i2c2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c2_sdma_reqs),
+ .main_clk = "i2c2_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP2420_EN_I2C2_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP2420_ST_I2C2_SHIFT,
+ },
+ },
+ .slaves = omap2420_i2c2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2420_i2c2_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
+ .flags = HWMOD_16BIT_REG,
+};
+
static __initdata struct omap_hwmod *omap2420_hwmods[] = {
&omap2420_l3_main_hwmod,
&omap2420_l4_core_hwmod,
@@ -428,6 +567,8 @@ static __initdata struct omap_hwmod *omap2420_hwmods[] = {
&omap2420_uart1_hwmod,
&omap2420_uart2_hwmod,
&omap2420_uart3_hwmod,
+ &omap2420_i2c1_hwmod,
+ &omap2420_i2c2_hwmod,
NULL,
};
@@ -435,5 +576,3 @@ int __init omap2420_hwmod_init(void)
{
return omap_hwmod_init(omap2420_hwmods);
}
-
-
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 12d939e456c..7cf0d3ab2a4 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -16,6 +16,8 @@
#include <plat/cpu.h>
#include <plat/dma.h>
#include <plat/serial.h>
+#include <plat/i2c.h>
+#include <plat/omap24xx.h>
#include "omap_hwmod_common_data.h"
@@ -77,6 +79,47 @@ static struct omap_hwmod omap2430_l4_wkup_hwmod;
static struct omap_hwmod omap2430_uart1_hwmod;
static struct omap_hwmod omap2430_uart2_hwmod;
static struct omap_hwmod omap2430_uart3_hwmod;
+static struct omap_hwmod omap2430_i2c1_hwmod;
+static struct omap_hwmod omap2430_i2c2_hwmod;
+
+/* I2C IP block address space length (in bytes) */
+#define OMAP2_I2C_AS_LEN 128
+
+/* L4 CORE -> I2C1 interface */
+static struct omap_hwmod_addr_space omap2430_i2c1_addr_space[] = {
+ {
+ .pa_start = 0x48070000,
+ .pa_end = 0x48070000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2430_l4_core__i2c1 = {
+ .master = &omap2430_l4_core_hwmod,
+ .slave = &omap2430_i2c1_hwmod,
+ .clk = "i2c1_ick",
+ .addr = omap2430_i2c1_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2430_i2c1_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* L4 CORE -> I2C2 interface */
+static struct omap_hwmod_addr_space omap2430_i2c2_addr_space[] = {
+ {
+ .pa_start = 0x48072000,
+ .pa_end = 0x48072000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap2430_l4_core__i2c2 = {
+ .master = &omap2430_l4_core_hwmod,
+ .slave = &omap2430_i2c2_hwmod,
+ .clk = "i2c2_ick",
+ .addr = omap2430_i2c2_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap2430_i2c2_addr_space),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
/* L4_CORE -> L4_WKUP interface */
static struct omap_hwmod_ocp_if omap2430_l4_core__l4_wkup = {
@@ -418,6 +461,114 @@ static struct omap_hwmod omap2430_uart3_hwmod = {
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
+/* I2C common */
+static struct omap_hwmod_class_sysconfig i2c_sysc = {
+ .rev_offs = 0x00,
+ .sysc_offs = 0x20,
+ .syss_offs = 0x10,
+ .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class i2c_class = {
+ .name = "i2c",
+ .sysc = &i2c_sysc,
+};
+
+static struct omap_i2c_dev_attr i2c_dev_attr;
+
+/* I2C1 */
+
+static struct omap_i2c_dev_attr i2c1_dev_attr = {
+ .fifo_depth = 8, /* bytes */
+};
+
+static struct omap_hwmod_irq_info i2c1_mpu_irqs[] = {
+ { .irq = INT_24XX_I2C1_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c1_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP24XX_DMA_I2C1_TX },
+ { .name = "rx", .dma_req = OMAP24XX_DMA_I2C1_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap2430_i2c1_slaves[] = {
+ &omap2430_l4_core__i2c1,
+};
+
+static struct omap_hwmod omap2430_i2c1_hwmod = {
+ .name = "i2c1",
+ .mpu_irqs = i2c1_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c1_mpu_irqs),
+ .sdma_reqs = i2c1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c1_sdma_reqs),
+ .main_clk = "i2chs1_fck",
+ .prcm = {
+ .omap2 = {
+ /*
+ * NOTE: The CM_FCLKEN* and CM_ICLKEN* for
+ * I2CHS IP's do not follow the usual pattern.
+ * prcm_reg_id alone cannot be used to program
+ * the iclk and fclk. Needs to be handled using
+ * additonal flags when clk handling is moved
+ * to hwmod framework.
+ */
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP2430_EN_I2CHS1_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP2430_ST_I2CHS1_SHIFT,
+ },
+ },
+ .slaves = omap2430_i2c1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2430_i2c1_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c1_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
+};
+
+/* I2C2 */
+
+static struct omap_i2c_dev_attr i2c2_dev_attr = {
+ .fifo_depth = 8, /* bytes */
+};
+
+static struct omap_hwmod_irq_info i2c2_mpu_irqs[] = {
+ { .irq = INT_24XX_I2C2_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c2_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP24XX_DMA_I2C2_TX },
+ { .name = "rx", .dma_req = OMAP24XX_DMA_I2C2_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap2430_i2c2_slaves[] = {
+ &omap2430_l4_core__i2c2,
+};
+
+static struct omap_hwmod omap2430_i2c2_hwmod = {
+ .name = "i2c2",
+ .mpu_irqs = i2c2_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c2_mpu_irqs),
+ .sdma_reqs = i2c2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c2_sdma_reqs),
+ .main_clk = "i2chs2_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP2430_EN_I2CHS2_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP2430_ST_I2CHS2_SHIFT,
+ },
+ },
+ .slaves = omap2430_i2c2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap2430_i2c2_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c2_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
+};
+
static __initdata struct omap_hwmod *omap2430_hwmods[] = {
&omap2430_l3_main_hwmod,
&omap2430_l4_core_hwmod,
@@ -428,6 +579,8 @@ static __initdata struct omap_hwmod *omap2430_hwmods[] = {
&omap2430_uart1_hwmod,
&omap2430_uart2_hwmod,
&omap2430_uart3_hwmod,
+ &omap2430_i2c1_hwmod,
+ &omap2430_i2c2_hwmod,
NULL,
};
@@ -435,5 +588,3 @@ int __init omap2430_hwmod_init(void)
{
return omap_hwmod_init(omap2430_hwmods);
}
-
-
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index cb97ecf0a3f..a8bed843079 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -18,6 +18,9 @@
#include <plat/cpu.h>
#include <plat/dma.h>
#include <plat/serial.h>
+#include <plat/l4_3xxx.h>
+#include <plat/i2c.h>
+#include <plat/omap34xx.h>
#include "omap_hwmod_common_data.h"
@@ -39,6 +42,9 @@ static struct omap_hwmod omap3xxx_l3_main_hwmod;
static struct omap_hwmod omap3xxx_l4_core_hwmod;
static struct omap_hwmod omap3xxx_l4_per_hwmod;
static struct omap_hwmod omap3xxx_wd_timer2_hwmod;
+static struct omap_hwmod omap3xxx_i2c1_hwmod;
+static struct omap_hwmod omap3xxx_i2c2_hwmod;
+static struct omap_hwmod omap3xxx_i2c3_hwmod;
/* L3 -> L4_CORE interface */
static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_core = {
@@ -169,6 +175,84 @@ static struct omap_hwmod_ocp_if omap3_l4_per__uart4 = {
.user = OCP_USER_MPU | OCP_USER_SDMA,
};
+/* I2C IP block address space length (in bytes) */
+#define OMAP2_I2C_AS_LEN 128
+
+/* L4 CORE -> I2C1 interface */
+static struct omap_hwmod_addr_space omap3xxx_i2c1_addr_space[] = {
+ {
+ .pa_start = 0x48070000,
+ .pa_end = 0x48070000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap3_l4_core__i2c1 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap3xxx_i2c1_hwmod,
+ .clk = "i2c1_ick",
+ .addr = omap3xxx_i2c1_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap3xxx_i2c1_addr_space),
+ .fw = {
+ .omap2 = {
+ .l4_fw_region = OMAP3_L4_CORE_FW_I2C1_REGION,
+ .l4_prot_group = 7,
+ .flags = OMAP_FIREWALL_L4,
+ }
+ },
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* L4 CORE -> I2C2 interface */
+static struct omap_hwmod_addr_space omap3xxx_i2c2_addr_space[] = {
+ {
+ .pa_start = 0x48072000,
+ .pa_end = 0x48072000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap3_l4_core__i2c2 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap3xxx_i2c2_hwmod,
+ .clk = "i2c2_ick",
+ .addr = omap3xxx_i2c2_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap3xxx_i2c2_addr_space),
+ .fw = {
+ .omap2 = {
+ .l4_fw_region = OMAP3_L4_CORE_FW_I2C2_REGION,
+ .l4_prot_group = 7,
+ .flags = OMAP_FIREWALL_L4,
+ }
+ },
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* L4 CORE -> I2C3 interface */
+static struct omap_hwmod_addr_space omap3xxx_i2c3_addr_space[] = {
+ {
+ .pa_start = 0x48060000,
+ .pa_end = 0x48060000 + OMAP2_I2C_AS_LEN - 1,
+ .flags = ADDR_TYPE_RT,
+ },
+};
+
+static struct omap_hwmod_ocp_if omap3_l4_core__i2c3 = {
+ .master = &omap3xxx_l4_core_hwmod,
+ .slave = &omap3xxx_i2c3_hwmod,
+ .clk = "i2c3_ick",
+ .addr = omap3xxx_i2c3_addr_space,
+ .addr_cnt = ARRAY_SIZE(omap3xxx_i2c3_addr_space),
+ .fw = {
+ .omap2 = {
+ .l4_fw_region = OMAP3_L4_CORE_FW_I2C3_REGION,
+ .l4_prot_group = 7,
+ .flags = OMAP_FIREWALL_L4,
+ }
+ },
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
/* Slave interfaces on the L4_CORE interconnect */
static struct omap_hwmod_ocp_if *omap3xxx_l4_core_slaves[] = {
&omap3xxx_l3_main__l4_core,
@@ -179,6 +263,9 @@ static struct omap_hwmod_ocp_if *omap3xxx_l4_core_masters[] = {
&omap3xxx_l4_core__l4_wkup,
&omap3_l4_core__uart1,
&omap3_l4_core__uart2,
+ &omap3_l4_core__i2c1,
+ &omap3_l4_core__i2c2,
+ &omap3_l4_core__i2c3,
};
/* L4 CORE */
@@ -315,6 +402,18 @@ static struct omap_hwmod_class_sysconfig omap3xxx_wd_timer_sysc = {
.sysc_fields = &omap_hwmod_sysc_type1,
};
+/* I2C common */
+static struct omap_hwmod_class_sysconfig i2c_sysc = {
+ .rev_offs = 0x00,
+ .sysc_offs = 0x20,
+ .syss_offs = 0x10,
+ .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+ SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+ SYSC_HAS_AUTOIDLE),
+ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
static struct omap_hwmod_class omap3xxx_wd_timer_hwmod_class = {
.name = "wd_timer",
.sysc = &omap3xxx_wd_timer_sysc,
@@ -509,6 +608,137 @@ static struct omap_hwmod omap3xxx_uart4_hwmod = {
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3630ES1),
};
+static struct omap_hwmod_class i2c_class = {
+ .name = "i2c",
+ .sysc = &i2c_sysc,
+};
+
+/* I2C1 */
+
+static struct omap_i2c_dev_attr i2c1_dev_attr = {
+ .fifo_depth = 8, /* bytes */
+};
+
+static struct omap_hwmod_irq_info i2c1_mpu_irqs[] = {
+ { .irq = INT_24XX_I2C1_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c1_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP24XX_DMA_I2C1_TX },
+ { .name = "rx", .dma_req = OMAP24XX_DMA_I2C1_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_i2c1_slaves[] = {
+ &omap3_l4_core__i2c1,
+};
+
+static struct omap_hwmod omap3xxx_i2c1_hwmod = {
+ .name = "i2c1",
+ .mpu_irqs = i2c1_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c1_mpu_irqs),
+ .sdma_reqs = i2c1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c1_sdma_reqs),
+ .main_clk = "i2c1_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_I2C1_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_I2C1_SHIFT,
+ },
+ },
+ .slaves = omap3xxx_i2c1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap3xxx_i2c1_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c1_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
+/* I2C2 */
+
+static struct omap_i2c_dev_attr i2c2_dev_attr = {
+ .fifo_depth = 8, /* bytes */
+};
+
+static struct omap_hwmod_irq_info i2c2_mpu_irqs[] = {
+ { .irq = INT_24XX_I2C2_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c2_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP24XX_DMA_I2C2_TX },
+ { .name = "rx", .dma_req = OMAP24XX_DMA_I2C2_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_i2c2_slaves[] = {
+ &omap3_l4_core__i2c2,
+};
+
+static struct omap_hwmod omap3xxx_i2c2_hwmod = {
+ .name = "i2c2",
+ .mpu_irqs = i2c2_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c2_mpu_irqs),
+ .sdma_reqs = i2c2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c2_sdma_reqs),
+ .main_clk = "i2c2_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_I2C2_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_I2C2_SHIFT,
+ },
+ },
+ .slaves = omap3xxx_i2c2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap3xxx_i2c2_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c2_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
+/* I2C3 */
+
+static struct omap_i2c_dev_attr i2c3_dev_attr = {
+ .fifo_depth = 64, /* bytes */
+};
+
+static struct omap_hwmod_irq_info i2c3_mpu_irqs[] = {
+ { .irq = INT_34XX_I2C3_IRQ, },
+};
+
+static struct omap_hwmod_dma_info i2c3_sdma_reqs[] = {
+ { .name = "tx", .dma_req = OMAP34XX_DMA_I2C3_TX },
+ { .name = "rx", .dma_req = OMAP34XX_DMA_I2C3_RX },
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_i2c3_slaves[] = {
+ &omap3_l4_core__i2c3,
+};
+
+static struct omap_hwmod omap3xxx_i2c3_hwmod = {
+ .name = "i2c3",
+ .mpu_irqs = i2c3_mpu_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(i2c3_mpu_irqs),
+ .sdma_reqs = i2c3_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(i2c3_sdma_reqs),
+ .main_clk = "i2c3_fck",
+ .prcm = {
+ .omap2 = {
+ .module_offs = CORE_MOD,
+ .prcm_reg_id = 1,
+ .module_bit = OMAP3430_EN_I2C3_SHIFT,
+ .idlest_reg_id = 1,
+ .idlest_idle_bit = OMAP3430_ST_I2C3_SHIFT,
+ },
+ },
+ .slaves = omap3xxx_i2c3_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap3xxx_i2c3_slaves),
+ .class = &i2c_class,
+ .dev_attr = &i2c3_dev_attr,
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
+};
+
static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
&omap3xxx_l3_main_hwmod,
&omap3xxx_l4_core_hwmod,
@@ -521,6 +751,9 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
&omap3xxx_uart2_hwmod,
&omap3xxx_uart3_hwmod,
&omap3xxx_uart4_hwmod,
+ &omap3xxx_i2c1_hwmod,
+ &omap3xxx_i2c2_hwmod,
+ &omap3xxx_i2c3_hwmod,
NULL,
};
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 7274db4de48..0d5c6eb7e4c 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -383,6 +383,238 @@ static struct omap_hwmod omap44xx_l4_wkup_hwmod = {
};
/*
+ * 'i2c' class
+ * multimaster high-speed i2c controller
+ */
+
+static struct omap_hwmod_class_sysconfig omap44xx_i2c_sysc = {
+ .sysc_offs = 0x0010,
+ .syss_offs = 0x0090,
+ .sysc_flags = (SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+ SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SOFTRESET |
+ SYSC_HAS_AUTOIDLE),
+ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap44xx_i2c_hwmod_class = {
+ .name = "i2c",
+ .sysc = &omap44xx_i2c_sysc,
+};
+
+/* i2c1 */
+static struct omap_hwmod omap44xx_i2c1_hwmod;
+static struct omap_hwmod_irq_info omap44xx_i2c1_irqs[] = {
+ { .irq = 56 + OMAP44XX_IRQ_GIC_START },
+};
+
+static struct omap_hwmod_dma_info omap44xx_i2c1_sdma_reqs[] = {
+ { .name = "tx", .dma_req = 26 + OMAP44XX_DMA_REQ_START },
+ { .name = "rx", .dma_req = 27 + OMAP44XX_DMA_REQ_START },
+};
+
+static struct omap_hwmod_addr_space omap44xx_i2c1_addrs[] = {
+ {
+ .pa_start = 0x48070000,
+ .pa_end = 0x480700ff,
+ .flags = ADDR_TYPE_RT
+ },
+};
+
+/* l4_per -> i2c1 */
+static struct omap_hwmod_ocp_if omap44xx_l4_per__i2c1 = {
+ .master = &omap44xx_l4_per_hwmod,
+ .slave = &omap44xx_i2c1_hwmod,
+ .clk = "l4_div_ck",
+ .addr = omap44xx_i2c1_addrs,
+ .addr_cnt = ARRAY_SIZE(omap44xx_i2c1_addrs),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* i2c1 slave ports */
+static struct omap_hwmod_ocp_if *omap44xx_i2c1_slaves[] = {
+ &omap44xx_l4_per__i2c1,
+};
+
+static struct omap_hwmod omap44xx_i2c1_hwmod = {
+ .name = "i2c1",
+ .class = &omap44xx_i2c_hwmod_class,
+ .flags = HWMOD_INIT_NO_RESET,
+ .mpu_irqs = omap44xx_i2c1_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_i2c1_irqs),
+ .sdma_reqs = omap44xx_i2c1_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_i2c1_sdma_reqs),
+ .main_clk = "i2c1_fck",
+ .prcm = {
+ .omap4 = {
+ .clkctrl_reg = OMAP4430_CM_L4PER_I2C1_CLKCTRL,
+ },
+ },
+ .slaves = omap44xx_i2c1_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap44xx_i2c1_slaves),
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+/* i2c2 */
+static struct omap_hwmod omap44xx_i2c2_hwmod;
+static struct omap_hwmod_irq_info omap44xx_i2c2_irqs[] = {
+ { .irq = 57 + OMAP44XX_IRQ_GIC_START },
+};
+
+static struct omap_hwmod_dma_info omap44xx_i2c2_sdma_reqs[] = {
+ { .name = "tx", .dma_req = 28 + OMAP44XX_DMA_REQ_START },
+ { .name = "rx", .dma_req = 29 + OMAP44XX_DMA_REQ_START },
+};
+
+static struct omap_hwmod_addr_space omap44xx_i2c2_addrs[] = {
+ {
+ .pa_start = 0x48072000,
+ .pa_end = 0x480720ff,
+ .flags = ADDR_TYPE_RT
+ },
+};
+
+/* l4_per -> i2c2 */
+static struct omap_hwmod_ocp_if omap44xx_l4_per__i2c2 = {
+ .master = &omap44xx_l4_per_hwmod,
+ .slave = &omap44xx_i2c2_hwmod,
+ .clk = "l4_div_ck",
+ .addr = omap44xx_i2c2_addrs,
+ .addr_cnt = ARRAY_SIZE(omap44xx_i2c2_addrs),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* i2c2 slave ports */
+static struct omap_hwmod_ocp_if *omap44xx_i2c2_slaves[] = {
+ &omap44xx_l4_per__i2c2,
+};
+
+static struct omap_hwmod omap44xx_i2c2_hwmod = {
+ .name = "i2c2",
+ .class = &omap44xx_i2c_hwmod_class,
+ .flags = HWMOD_INIT_NO_RESET,
+ .mpu_irqs = omap44xx_i2c2_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_i2c2_irqs),
+ .sdma_reqs = omap44xx_i2c2_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_i2c2_sdma_reqs),
+ .main_clk = "i2c2_fck",
+ .prcm = {
+ .omap4 = {
+ .clkctrl_reg = OMAP4430_CM_L4PER_I2C2_CLKCTRL,
+ },
+ },
+ .slaves = omap44xx_i2c2_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap44xx_i2c2_slaves),
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+/* i2c3 */
+static struct omap_hwmod omap44xx_i2c3_hwmod;
+static struct omap_hwmod_irq_info omap44xx_i2c3_irqs[] = {
+ { .irq = 61 + OMAP44XX_IRQ_GIC_START },
+};
+
+static struct omap_hwmod_dma_info omap44xx_i2c3_sdma_reqs[] = {
+ { .name = "tx", .dma_req = 24 + OMAP44XX_DMA_REQ_START },
+ { .name = "rx", .dma_req = 25 + OMAP44XX_DMA_REQ_START },
+};
+
+static struct omap_hwmod_addr_space omap44xx_i2c3_addrs[] = {
+ {
+ .pa_start = 0x48060000,
+ .pa_end = 0x480600ff,
+ .flags = ADDR_TYPE_RT
+ },
+};
+
+/* l4_per -> i2c3 */
+static struct omap_hwmod_ocp_if omap44xx_l4_per__i2c3 = {
+ .master = &omap44xx_l4_per_hwmod,
+ .slave = &omap44xx_i2c3_hwmod,
+ .clk = "l4_div_ck",
+ .addr = omap44xx_i2c3_addrs,
+ .addr_cnt = ARRAY_SIZE(omap44xx_i2c3_addrs),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* i2c3 slave ports */
+static struct omap_hwmod_ocp_if *omap44xx_i2c3_slaves[] = {
+ &omap44xx_l4_per__i2c3,
+};
+
+static struct omap_hwmod omap44xx_i2c3_hwmod = {
+ .name = "i2c3",
+ .class = &omap44xx_i2c_hwmod_class,
+ .flags = HWMOD_INIT_NO_RESET,
+ .mpu_irqs = omap44xx_i2c3_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_i2c3_irqs),
+ .sdma_reqs = omap44xx_i2c3_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_i2c3_sdma_reqs),
+ .main_clk = "i2c3_fck",
+ .prcm = {
+ .omap4 = {
+ .clkctrl_reg = OMAP4430_CM_L4PER_I2C3_CLKCTRL,
+ },
+ },
+ .slaves = omap44xx_i2c3_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap44xx_i2c3_slaves),
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+/* i2c4 */
+static struct omap_hwmod omap44xx_i2c4_hwmod;
+static struct omap_hwmod_irq_info omap44xx_i2c4_irqs[] = {
+ { .irq = 62 + OMAP44XX_IRQ_GIC_START },
+};
+
+static struct omap_hwmod_dma_info omap44xx_i2c4_sdma_reqs[] = {
+ { .name = "tx", .dma_req = 123 + OMAP44XX_DMA_REQ_START },
+ { .name = "rx", .dma_req = 124 + OMAP44XX_DMA_REQ_START },
+};
+
+static struct omap_hwmod_addr_space omap44xx_i2c4_addrs[] = {
+ {
+ .pa_start = 0x48350000,
+ .pa_end = 0x483500ff,
+ .flags = ADDR_TYPE_RT
+ },
+};
+
+/* l4_per -> i2c4 */
+static struct omap_hwmod_ocp_if omap44xx_l4_per__i2c4 = {
+ .master = &omap44xx_l4_per_hwmod,
+ .slave = &omap44xx_i2c4_hwmod,
+ .clk = "l4_div_ck",
+ .addr = omap44xx_i2c4_addrs,
+ .addr_cnt = ARRAY_SIZE(omap44xx_i2c4_addrs),
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* i2c4 slave ports */
+static struct omap_hwmod_ocp_if *omap44xx_i2c4_slaves[] = {
+ &omap44xx_l4_per__i2c4,
+};
+
+static struct omap_hwmod omap44xx_i2c4_hwmod = {
+ .name = "i2c4",
+ .class = &omap44xx_i2c_hwmod_class,
+ .flags = HWMOD_INIT_NO_RESET,
+ .mpu_irqs = omap44xx_i2c4_irqs,
+ .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_i2c4_irqs),
+ .sdma_reqs = omap44xx_i2c4_sdma_reqs,
+ .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_i2c4_sdma_reqs),
+ .main_clk = "i2c4_fck",
+ .prcm = {
+ .omap4 = {
+ .clkctrl_reg = OMAP4430_CM_L4PER_I2C4_CLKCTRL,
+ },
+ },
+ .slaves = omap44xx_i2c4_slaves,
+ .slaves_cnt = ARRAY_SIZE(omap44xx_i2c4_slaves),
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430),
+};
+
+/*
* 'mpu_bus' class
* instance(s): mpu_private
*/
@@ -826,6 +1058,11 @@ static __initdata struct omap_hwmod *omap44xx_hwmods[] = {
&omap44xx_l4_cfg_hwmod,
&omap44xx_l4_per_hwmod,
&omap44xx_l4_wkup_hwmod,
+ /* i2c class */
+ &omap44xx_i2c1_hwmod,
+ &omap44xx_i2c2_hwmod,
+ &omap44xx_i2c3_hwmod,
+ &omap44xx_i2c4_hwmod,
/* mpu_bus class */
&omap44xx_mpu_private_hwmod,
diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h b/arch/arm/mach-omap2/prm-regbits-34xx.h
index 9e63cb743a9..ec1a710db9c 100644
--- a/arch/arm/mach-omap2/prm-regbits-34xx.h
+++ b/arch/arm/mach-omap2/prm-regbits-34xx.h
@@ -101,8 +101,11 @@
#define OMAP3430_GRPSEL_MCSPI3_MASK (1 << 20)
#define OMAP3430_GRPSEL_MCSPI2_MASK (1 << 19)
#define OMAP3430_GRPSEL_MCSPI1_MASK (1 << 18)
+#define OMAP3430_GRPSEL_I2C3_SHIFT 17
#define OMAP3430_GRPSEL_I2C3_MASK (1 << 17)
+#define OMAP3430_GRPSEL_I2C2_SHIFT 16
#define OMAP3430_GRPSEL_I2C2_MASK (1 << 16)
+#define OMAP3430_GRPSEL_I2C1_SHIFT 15
#define OMAP3430_GRPSEL_I2C1_MASK (1 << 15)
#define OMAP3430_GRPSEL_UART2_MASK (1 << 14)
#define OMAP3430_GRPSEL_UART1_MASK (1 << 13)
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index a5ce4f0aad3..a5bff9ce7cb 100644
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -27,18 +27,18 @@
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/i2c-omap.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/clk.h>
#include <mach/irqs.h>
#include <plat/mux.h>
#include <plat/i2c.h>
#include <plat/omap-pm.h>
+#include <plat/omap_device.h>
#define OMAP_I2C_SIZE 0x3f
#define OMAP1_I2C_BASE 0xfffb3800
-#define OMAP2_I2C_BASE1 0x48070000
-#define OMAP2_I2C_BASE2 0x48072000
-#define OMAP2_I2C_BASE3 0x48060000
-#define OMAP4_I2C_BASE4 0x48350000
static const char name[] = "i2c_omap";
@@ -55,15 +55,6 @@ static const char name[] = "i2c_omap";
static struct resource i2c_resources[][2] = {
{ I2C_RESOURCE_BUILDER(0, 0) },
-#if defined(CONFIG_ARCH_OMAP2PLUS)
- { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE2, 0) },
-#endif
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
- { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE3, 0) },
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
- { I2C_RESOURCE_BUILDER(OMAP4_I2C_BASE4, 0) },
-#endif
};
#define I2C_DEV_BUILDER(bus_id, res, data) \
@@ -77,18 +68,11 @@ static struct resource i2c_resources[][2] = {
}, \
}
-static struct omap_i2c_bus_platform_data i2c_pdata[ARRAY_SIZE(i2c_resources)];
+#define MAX_OMAP_I2C_HWMOD_NAME_LEN 16
+#define OMAP_I2C_MAX_CONTROLLERS 4
+static struct omap_i2c_bus_platform_data i2c_pdata[OMAP_I2C_MAX_CONTROLLERS];
static struct platform_device omap_i2c_devices[] = {
I2C_DEV_BUILDER(1, i2c_resources[0], &i2c_pdata[0]),
-#if defined(CONFIG_ARCH_OMAP2PLUS)
- I2C_DEV_BUILDER(2, i2c_resources[1], &i2c_pdata[1]),
-#endif
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
- I2C_DEV_BUILDER(3, i2c_resources[2], &i2c_pdata[2]),
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
- I2C_DEV_BUILDER(4, i2c_resources[3], &i2c_pdata[3]),
-#endif
};
#define OMAP_I2C_CMDLINE_SETUP (BIT(31))
@@ -109,35 +93,20 @@ static int __init omap_i2c_nr_ports(void)
return ports;
}
-/* Shared between omap2 and 3 */
-static resource_size_t omap2_i2c_irq[3] __initdata = {
- INT_24XX_I2C1_IRQ,
- INT_24XX_I2C2_IRQ,
- INT_34XX_I2C3_IRQ,
-};
-
-static resource_size_t omap4_i2c_irq[4] __initdata = {
- OMAP44XX_IRQ_I2C1,
- OMAP44XX_IRQ_I2C2,
- OMAP44XX_IRQ_I2C3,
- OMAP44XX_IRQ_I2C4,
-};
-
-static inline int omap1_i2c_add_bus(struct platform_device *pdev, int bus_id)
+static inline int omap1_i2c_add_bus(int bus_id)
{
- struct omap_i2c_bus_platform_data *pd;
- struct resource *res;
-
- pd = pdev->dev.platform_data;
- res = pdev->resource;
- res[0].start = OMAP1_I2C_BASE;
- res[0].end = res[0].start + OMAP_I2C_SIZE;
- res[1].start = INT_I2C;
+ struct platform_device *pdev;
+ struct omap_i2c_bus_platform_data *pdata;
+
omap1_i2c_mux_pins(bus_id);
+ pdev = &omap_i2c_devices[bus_id - 1];
+ pdata = &i2c_pdata[bus_id - 1];
+
return platform_device_register(pdev);
}
+
/*
* XXX This function is a temporary compatibility wrapper - only
* needed until the I2C driver can be converted to call
@@ -148,52 +117,57 @@ static void omap_pm_set_max_mpu_wakeup_lat_compat(struct device *dev, long t)
omap_pm_set_max_mpu_wakeup_lat(dev, t);
}
-static inline int omap2_i2c_add_bus(struct platform_device *pdev, int bus_id)
-{
- struct resource *res;
- resource_size_t *irq;
+static struct omap_device_pm_latency omap_i2c_latency[] = {
+ [0] = {
+ .deactivate_func = omap_device_idle_hwmods,
+ .activate_func = omap_device_enable_hwmods,
+ .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
+ },
+};
- res = pdev->resource;
+static inline int omap2_i2c_add_bus(int bus_id)
+{
+ int l;
+ struct omap_hwmod *oh;
+ struct omap_device *od;
+ char oh_name[MAX_OMAP_I2C_HWMOD_NAME_LEN];
+ struct omap_i2c_bus_platform_data *pdata;
- if (!cpu_is_omap44xx())
- irq = omap2_i2c_irq;
- else
- irq = omap4_i2c_irq;
+ omap2_i2c_mux_pins(bus_id);
- if (bus_id == 1) {
- res[0].start = OMAP2_I2C_BASE1;
- res[0].end = res[0].start + OMAP_I2C_SIZE;
+ l = snprintf(oh_name, MAX_OMAP_I2C_HWMOD_NAME_LEN, "i2c%d", bus_id);
+ WARN(l >= MAX_OMAP_I2C_HWMOD_NAME_LEN,
+ "String buffer overflow in I2C%d device setup\n", bus_id);
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("Could not look up %s\n", oh_name);
+ return -EEXIST;
}
- res[1].start = irq[bus_id - 1];
- omap2_i2c_mux_pins(bus_id);
-
+ pdata = &i2c_pdata[bus_id - 1];
/*
* When waiting for completion of a i2c transfer, we need to
* set a wake up latency constraint for the MPU. This is to
* ensure quick enough wakeup from idle, when transfer
* completes.
+ * Only omap3 has support for constraints
*/
- if (cpu_is_omap34xx()) {
- struct omap_i2c_bus_platform_data *pd;
-
- pd = pdev->dev.platform_data;
- pd->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat;
- }
-
- return platform_device_register(pdev);
+ if (cpu_is_omap34xx())
+ pdata->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat;
+ od = omap_device_build(name, bus_id, oh, pdata,
+ sizeof(struct omap_i2c_bus_platform_data),
+ omap_i2c_latency, ARRAY_SIZE(omap_i2c_latency), 0);
+ WARN(IS_ERR(od), "Could not build omap_device for %s\n", name);
+
+ return PTR_ERR(od);
}
static int __init omap_i2c_add_bus(int bus_id)
{
- struct platform_device *pdev;
-
- pdev = &omap_i2c_devices[bus_id - 1];
-
if (cpu_class_is_omap1())
- return omap1_i2c_add_bus(pdev, bus_id);
+ return omap1_i2c_add_bus(bus_id);
else
- return omap2_i2c_add_bus(pdev, bus_id);
+ return omap2_i2c_add_bus(bus_id);
}
/**
diff --git a/arch/arm/plat-omap/include/plat/i2c.h b/arch/arm/plat-omap/include/plat/i2c.h
index 36a0befd616..878d632c409 100644
--- a/arch/arm/plat-omap/include/plat/i2c.h
+++ b/arch/arm/plat-omap/include/plat/i2c.h
@@ -36,6 +36,19 @@ static inline int omap_register_i2c_bus(int bus_id, u32 clkrate,
}
#endif
+/**
+ * i2c_dev_attr - OMAP I2C controller device attributes for omap_hwmod
+ * @fifo_depth: total controller FIFO size (in bytes)
+ * @flags: differences in hardware support capability
+ *
+ * @fifo_depth represents what exists on the hardware, not what is
+ * actually configured at runtime by the device driver.
+ */
+struct omap_i2c_dev_attr {
+ u8 fifo_depth;
+ u8 flags;
+};
+
void __init omap1_i2c_mux_pins(int bus_id);
void __init omap2_i2c_mux_pins(int bus_id);
diff --git a/arch/arm/plat-omap/include/plat/l4_3xxx.h b/arch/arm/plat-omap/include/plat/l4_3xxx.h
new file mode 100644
index 00000000000..5e194937542
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/l4_3xxx.h
@@ -0,0 +1,24 @@
+/*
+ * arch/arm/plat-omap/include/mach/l4_3xxx.h - L4 firewall definitions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_L4_3XXX_H
+#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_L4_3XXX_H
+
+/* L4 CORE */
+#define OMAP3_L4_CORE_FW_I2C1_REGION 21
+#define OMAP3_L4_CORE_FW_I2C1_TA_REGION 22
+#define OMAP3_L4_CORE_FW_I2C2_REGION 23
+#define OMAP3_L4_CORE_FW_I2C2_TA_REGION 24
+#define OMAP3_L4_CORE_FW_I2C3_REGION 73
+#define OMAP3_L4_CORE_FW_I2C3_TA_REGION 74
+
+#endif
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index b33c78586bf..760b8be6975 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -39,6 +39,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/i2c-omap.h>
+#include <linux/pm_runtime.h>
/* I2C controller revisions */
#define OMAP_I2C_REV_2 0x20
@@ -175,8 +176,6 @@ struct omap_i2c_dev {
void __iomem *base; /* virtual */
int irq;
int reg_shift; /* bit shift for I2C register addresses */
- struct clk *iclk; /* Interface clock */
- struct clk *fclk; /* Functional clock */
struct completion cmd_complete;
struct resource *ioarea;
u32 latency; /* maximum mpu wkup latency */
@@ -265,45 +264,18 @@ static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg)
(i2c_dev->regs[reg] << i2c_dev->reg_shift));
}
-static int __init omap_i2c_get_clocks(struct omap_i2c_dev *dev)
+static void omap_i2c_unidle(struct omap_i2c_dev *dev)
{
- int ret;
+ struct platform_device *pdev;
+ struct omap_i2c_bus_platform_data *pdata;
- dev->iclk = clk_get(dev->dev, "ick");
- if (IS_ERR(dev->iclk)) {
- ret = PTR_ERR(dev->iclk);
- dev->iclk = NULL;
- return ret;
- }
+ WARN_ON(!dev->idle);
- dev->fclk = clk_get(dev->dev, "fck");
- if (IS_ERR(dev->fclk)) {
- ret = PTR_ERR(dev->fclk);
- if (dev->iclk != NULL) {
- clk_put(dev->iclk);
- dev->iclk = NULL;
- }
- dev->fclk = NULL;
- return ret;
- }
+ pdev = to_platform_device(dev->dev);
+ pdata = pdev->dev.platform_data;
- return 0;
-}
+ pm_runtime_get_sync(&pdev->dev);
-static void omap_i2c_put_clocks(struct omap_i2c_dev *dev)
-{
- clk_put(dev->fclk);
- dev->fclk = NULL;
- clk_put(dev->iclk);
- dev->iclk = NULL;
-}
-
-static void omap_i2c_unidle(struct omap_i2c_dev *dev)
-{
- WARN_ON(!dev->idle);
-
- clk_enable(dev->iclk);
- clk_enable(dev->fclk);
if (cpu_is_omap34xx()) {
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
omap_i2c_write_reg(dev, OMAP_I2C_PSC_REG, dev->pscstate);
@@ -326,10 +298,15 @@ static void omap_i2c_unidle(struct omap_i2c_dev *dev)
static void omap_i2c_idle(struct omap_i2c_dev *dev)
{
+ struct platform_device *pdev;
+ struct omap_i2c_bus_platform_data *pdata;
u16 iv;
WARN_ON(dev->idle);
+ pdev = to_platform_device(dev->dev);
+ pdata = pdev->dev.platform_data;
+
dev->iestate = omap_i2c_read_reg(dev, OMAP_I2C_IE_REG);
if (dev->rev >= OMAP_I2C_REV_ON_4430)
omap_i2c_write_reg(dev, OMAP_I2C_IRQENABLE_CLR, 1);
@@ -345,8 +322,8 @@ static void omap_i2c_idle(struct omap_i2c_dev *dev)
omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG);
}
dev->idle = 1;
- clk_disable(dev->fclk);
- clk_disable(dev->iclk);
+
+ pm_runtime_put_sync(&pdev->dev);
}
static int omap_i2c_init(struct omap_i2c_dev *dev)
@@ -356,6 +333,7 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
unsigned long fclk_rate = 12000000;
unsigned long timeout;
unsigned long internal_clk = 0;
+ struct clk *fclk;
if (dev->rev >= OMAP_I2C_REV_2) {
/* Disable I2C controller before soft reset */
@@ -414,7 +392,9 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
* always returns 12MHz for the functional clock, we can
* do this bit unconditionally.
*/
- fclk_rate = clk_get_rate(dev->fclk);
+ fclk = clk_get(dev->dev, "fck");
+ fclk_rate = clk_get_rate(fclk);
+ clk_put(fclk);
/* TRM for 5912 says the I2C clock must be prescaled to be
* between 7 - 12 MHz. The XOR input clock is typically
@@ -443,7 +423,9 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
internal_clk = 9600;
else
internal_clk = 4000;
- fclk_rate = clk_get_rate(dev->fclk) / 1000;
+ fclk = clk_get(dev->dev, "fck");
+ fclk_rate = clk_get_rate(fclk) / 1000;
+ clk_put(fclk);
/* Compute prescaler divisor */
psc = fclk_rate / internal_clk;
@@ -1048,14 +1030,12 @@ omap_i2c_probe(struct platform_device *pdev)
else
dev->reg_shift = 2;
- if ((r = omap_i2c_get_clocks(dev)) != 0)
- goto err_iounmap;
-
if (cpu_is_omap44xx())
dev->regs = (u8 *) omap4_reg_map;
else
dev->regs = (u8 *) reg_map;
+ pm_runtime_enable(&pdev->dev);
omap_i2c_unidle(dev);
dev->rev = omap_i2c_read_reg(dev, OMAP_I2C_REV_REG) & 0xff;
@@ -1127,8 +1107,6 @@ err_free_irq:
err_unuse_clocks:
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
omap_i2c_idle(dev);
- omap_i2c_put_clocks(dev);
-err_iounmap:
iounmap(dev->base);
err_free_mem:
platform_set_drvdata(pdev, NULL);
@@ -1150,7 +1128,6 @@ omap_i2c_remove(struct platform_device *pdev)
free_irq(dev->irq, dev);
i2c_del_adapter(&dev->adapter);
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
- omap_i2c_put_clocks(dev);
iounmap(dev->base);
kfree(dev);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h
index 78ebf507ce5..7472449cbb7 100644
--- a/include/linux/i2c-omap.h
+++ b/include/linux/i2c-omap.h
@@ -1,9 +1,14 @@
#ifndef __I2C_OMAP_H__
#define __I2C_OMAP_H__
+#include <linux/platform_device.h>
+
struct omap_i2c_bus_platform_data {
u32 clkrate;
void (*set_mpu_wkup_lat)(struct device *dev, long set);
+ int (*device_enable) (struct platform_device *pdev);
+ int (*device_shutdown) (struct platform_device *pdev);
+ int (*device_idle) (struct platform_device *pdev);
};
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 15:44:27 +0000