diff options
author | Paul Walmsley <paul@pwsan.com> | 2010-09-30 02:40:12 +0530 |
---|---|---|
committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-11-09 09:26:08 -0800 |
commit | 2004290f55f03c52e22044a5843928cf0f6cc56a (patch) | |
tree | 0d76f6dcc7e269304819f0f9178933c5673e8486 /arch/arm/mach-omap2/omap_hwmod_2430_data.c | |
parent | c8ddb2713c624f432fa5fe3c7ecffcdda46ea0d4 (diff) | |
download | op-kernel-dev-2004290f55f03c52e22044a5843928cf0f6cc56a.zip op-kernel-dev-2004290f55f03c52e22044a5843928cf0f6cc56a.tar.gz |
OMAP2xxx: hwmod: add I2C hwmods for OMAP2420, 2430
Add hwmod structures for I2C controllers on OMAP2420/2430.
NOTE: I2C module on OMAP2420 has 16bit registers and causes imprecise
aborts if 32bits are read/written to it. Use the HWMOD_16BIT_REG flag
to notify the hmwod framework of this hard requirement so that
__raw_writew/readw is used to read /write the mdoule registers.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod_2430_data.c')
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_2430_data.c | 155 |
1 files changed, 153 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index 12d939e..7cf0d3a 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); } - - |