From db12ba53fe8b2d79c06bfe00589b3e98fd50cb4c Mon Sep 17 00:00:00 2001 From: Benoit Cousson Date: Mon, 27 Sep 2010 20:19:19 +0530 Subject: OMAP4: UART: Add uart1-4 hwmods data for omap4 Add uart1-4 hwmod data into omap4_hwmod data file. Signed-off-by: Benoit Cousson Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 235 +++++++++++++++++++++++++++++ 1 file changed, 235 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index e20b0eebc6d9..afcbd483a6c4 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -452,6 +452,235 @@ static struct omap_hwmod omap44xx_mpu_hwmod = { .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430), }; +/* + * 'uart' class + * universal asynchronous receiver/transmitter (uart) + */ + +static struct omap_hwmod_class_sysconfig omap44xx_uart_sysc = { + .rev_offs = 0x0050, + .sysc_offs = 0x0054, + .syss_offs = 0x0058, + .sysc_flags = (SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE | + 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_uart_hwmod_class = { + .name = "uart", + .sysc = &omap44xx_uart_sysc, +}; + +/* uart1 */ +static struct omap_hwmod omap44xx_uart1_hwmod; +static struct omap_hwmod_irq_info omap44xx_uart1_irqs[] = { + { .irq = 72 + OMAP44XX_IRQ_GIC_START }, +}; + +static struct omap_hwmod_dma_info omap44xx_uart1_sdma_reqs[] = { + { .name = "tx", .dma_req = 48 + OMAP44XX_DMA_REQ_START }, + { .name = "rx", .dma_req = 49 + OMAP44XX_DMA_REQ_START }, +}; + +static struct omap_hwmod_addr_space omap44xx_uart1_addrs[] = { + { + .pa_start = 0x4806a000, + .pa_end = 0x4806a0ff, + .flags = ADDR_TYPE_RT + }, +}; + +/* l4_per -> uart1 */ +static struct omap_hwmod_ocp_if omap44xx_l4_per__uart1 = { + .master = &omap44xx_l4_per_hwmod, + .slave = &omap44xx_uart1_hwmod, + .clk = "l4_div_ck", + .addr = omap44xx_uart1_addrs, + .addr_cnt = ARRAY_SIZE(omap44xx_uart1_addrs), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* uart1 slave ports */ +static struct omap_hwmod_ocp_if *omap44xx_uart1_slaves[] = { + &omap44xx_l4_per__uart1, +}; + +static struct omap_hwmod omap44xx_uart1_hwmod = { + .name = "uart1", + .class = &omap44xx_uart_hwmod_class, + .mpu_irqs = omap44xx_uart1_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_uart1_irqs), + .sdma_reqs = omap44xx_uart1_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_uart1_sdma_reqs), + .main_clk = "uart1_fck", + .prcm = { + .omap4 = { + .clkctrl_reg = OMAP4430_CM_L4PER_UART1_CLKCTRL, + }, + }, + .slaves = omap44xx_uart1_slaves, + .slaves_cnt = ARRAY_SIZE(omap44xx_uart1_slaves), + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430), +}; + +/* uart2 */ +static struct omap_hwmod omap44xx_uart2_hwmod; +static struct omap_hwmod_irq_info omap44xx_uart2_irqs[] = { + { .irq = 73 + OMAP44XX_IRQ_GIC_START }, +}; + +static struct omap_hwmod_dma_info omap44xx_uart2_sdma_reqs[] = { + { .name = "tx", .dma_req = 50 + OMAP44XX_DMA_REQ_START }, + { .name = "rx", .dma_req = 51 + OMAP44XX_DMA_REQ_START }, +}; + +static struct omap_hwmod_addr_space omap44xx_uart2_addrs[] = { + { + .pa_start = 0x4806c000, + .pa_end = 0x4806c0ff, + .flags = ADDR_TYPE_RT + }, +}; + +/* l4_per -> uart2 */ +static struct omap_hwmod_ocp_if omap44xx_l4_per__uart2 = { + .master = &omap44xx_l4_per_hwmod, + .slave = &omap44xx_uart2_hwmod, + .clk = "l4_div_ck", + .addr = omap44xx_uart2_addrs, + .addr_cnt = ARRAY_SIZE(omap44xx_uart2_addrs), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* uart2 slave ports */ +static struct omap_hwmod_ocp_if *omap44xx_uart2_slaves[] = { + &omap44xx_l4_per__uart2, +}; + +static struct omap_hwmod omap44xx_uart2_hwmod = { + .name = "uart2", + .class = &omap44xx_uart_hwmod_class, + .mpu_irqs = omap44xx_uart2_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_uart2_irqs), + .sdma_reqs = omap44xx_uart2_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_uart2_sdma_reqs), + .main_clk = "uart2_fck", + .prcm = { + .omap4 = { + .clkctrl_reg = OMAP4430_CM_L4PER_UART2_CLKCTRL, + }, + }, + .slaves = omap44xx_uart2_slaves, + .slaves_cnt = ARRAY_SIZE(omap44xx_uart2_slaves), + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430), +}; + +/* uart3 */ +static struct omap_hwmod omap44xx_uart3_hwmod; +static struct omap_hwmod_irq_info omap44xx_uart3_irqs[] = { + { .irq = 74 + OMAP44XX_IRQ_GIC_START }, +}; + +static struct omap_hwmod_dma_info omap44xx_uart3_sdma_reqs[] = { + { .name = "tx", .dma_req = 52 + OMAP44XX_DMA_REQ_START }, + { .name = "rx", .dma_req = 53 + OMAP44XX_DMA_REQ_START }, +}; + +static struct omap_hwmod_addr_space omap44xx_uart3_addrs[] = { + { + .pa_start = 0x48020000, + .pa_end = 0x480200ff, + .flags = ADDR_TYPE_RT + }, +}; + +/* l4_per -> uart3 */ +static struct omap_hwmod_ocp_if omap44xx_l4_per__uart3 = { + .master = &omap44xx_l4_per_hwmod, + .slave = &omap44xx_uart3_hwmod, + .clk = "l4_div_ck", + .addr = omap44xx_uart3_addrs, + .addr_cnt = ARRAY_SIZE(omap44xx_uart3_addrs), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* uart3 slave ports */ +static struct omap_hwmod_ocp_if *omap44xx_uart3_slaves[] = { + &omap44xx_l4_per__uart3, +}; + +static struct omap_hwmod omap44xx_uart3_hwmod = { + .name = "uart3", + .class = &omap44xx_uart_hwmod_class, + .flags = (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET), + .mpu_irqs = omap44xx_uart3_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_uart3_irqs), + .sdma_reqs = omap44xx_uart3_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_uart3_sdma_reqs), + .main_clk = "uart3_fck", + .prcm = { + .omap4 = { + .clkctrl_reg = OMAP4430_CM_L4PER_UART3_CLKCTRL, + }, + }, + .slaves = omap44xx_uart3_slaves, + .slaves_cnt = ARRAY_SIZE(omap44xx_uart3_slaves), + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430), +}; + +/* uart4 */ +static struct omap_hwmod omap44xx_uart4_hwmod; +static struct omap_hwmod_irq_info omap44xx_uart4_irqs[] = { + { .irq = 70 + OMAP44XX_IRQ_GIC_START }, +}; + +static struct omap_hwmod_dma_info omap44xx_uart4_sdma_reqs[] = { + { .name = "tx", .dma_req = 54 + OMAP44XX_DMA_REQ_START }, + { .name = "rx", .dma_req = 55 + OMAP44XX_DMA_REQ_START }, +}; + +static struct omap_hwmod_addr_space omap44xx_uart4_addrs[] = { + { + .pa_start = 0x4806e000, + .pa_end = 0x4806e0ff, + .flags = ADDR_TYPE_RT + }, +}; + +/* l4_per -> uart4 */ +static struct omap_hwmod_ocp_if omap44xx_l4_per__uart4 = { + .master = &omap44xx_l4_per_hwmod, + .slave = &omap44xx_uart4_hwmod, + .clk = "l4_div_ck", + .addr = omap44xx_uart4_addrs, + .addr_cnt = ARRAY_SIZE(omap44xx_uart4_addrs), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* uart4 slave ports */ +static struct omap_hwmod_ocp_if *omap44xx_uart4_slaves[] = { + &omap44xx_l4_per__uart4, +}; + +static struct omap_hwmod omap44xx_uart4_hwmod = { + .name = "uart4", + .class = &omap44xx_uart_hwmod_class, + .mpu_irqs = omap44xx_uart4_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(omap44xx_uart4_irqs), + .sdma_reqs = omap44xx_uart4_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(omap44xx_uart4_sdma_reqs), + .main_clk = "uart4_fck", + .prcm = { + .omap4 = { + .clkctrl_reg = OMAP4430_CM_L4PER_UART4_CLKCTRL, + }, + }, + .slaves = omap44xx_uart4_slaves, + .slaves_cnt = ARRAY_SIZE(omap44xx_uart4_slaves), + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP4430), +}; + static __initdata struct omap_hwmod *omap44xx_hwmods[] = { /* dmm class */ &omap44xx_dmm_hwmod, @@ -472,6 +701,12 @@ static __initdata struct omap_hwmod *omap44xx_hwmods[] = { /* mpu class */ &omap44xx_mpu_hwmod, + + /* uart class */ + &omap44xx_uart1_hwmod, + &omap44xx_uart2_hwmod, + &omap44xx_uart3_hwmod, + &omap44xx_uart4_hwmod, NULL, }; -- cgit v1.2.1 From 046465b76a41a32a8d56e691b167fb9ba7729970 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Sep 2010 20:19:30 +0530 Subject: OMAP2/3: UART: add omap_hwmod data for UARTs 1-4 This patch adds omap_hwmod data for UARTs on OMAP2 and OMAP3 platforms. UART4 support for 3630 and OMAP2 hwmod data added by Govindraj R. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/omap_hwmod_2420_data.c | 193 ++++++++++++++++++++++ arch/arm/mach-omap2/omap_hwmod_2430_data.c | 193 ++++++++++++++++++++++ arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 253 ++++++++++++++++++++++++++++- arch/arm/mach-omap2/prcm-common.h | 3 + arch/arm/plat-omap/include/plat/dma.h | 2 + arch/arm/plat-omap/include/plat/irqs.h | 2 + 6 files changed, 644 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index 3cc768e8bc04..ba145f7d5896 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "omap_hwmod_common_data.h" @@ -71,6 +72,9 @@ static struct omap_hwmod omap2420_l3_main_hwmod = { }; 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; /* L4_CORE -> L4_WKUP interface */ static struct omap_hwmod_ocp_if omap2420_l4_core__l4_wkup = { @@ -79,6 +83,60 @@ static struct omap_hwmod_ocp_if omap2420_l4_core__l4_wkup = { .user = OCP_USER_MPU | OCP_USER_SDMA, }; +/* L4 CORE -> UART1 interface */ +static struct omap_hwmod_addr_space omap2420_uart1_addr_space[] = { + { + .pa_start = OMAP2_UART1_BASE, + .pa_end = OMAP2_UART1_BASE + SZ_8K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap2_l4_core__uart1 = { + .master = &omap2420_l4_core_hwmod, + .slave = &omap2420_uart1_hwmod, + .clk = "uart1_ick", + .addr = omap2420_uart1_addr_space, + .addr_cnt = ARRAY_SIZE(omap2420_uart1_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> UART2 interface */ +static struct omap_hwmod_addr_space omap2420_uart2_addr_space[] = { + { + .pa_start = OMAP2_UART2_BASE, + .pa_end = OMAP2_UART2_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap2_l4_core__uart2 = { + .master = &omap2420_l4_core_hwmod, + .slave = &omap2420_uart2_hwmod, + .clk = "uart2_ick", + .addr = omap2420_uart2_addr_space, + .addr_cnt = ARRAY_SIZE(omap2420_uart2_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART3 interface */ +static struct omap_hwmod_addr_space omap2420_uart3_addr_space[] = { + { + .pa_start = OMAP2_UART3_BASE, + .pa_end = OMAP2_UART3_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap2_l4_core__uart3 = { + .master = &omap2420_l4_core_hwmod, + .slave = &omap2420_uart3_hwmod, + .clk = "uart3_ick", + .addr = omap2420_uart3_addr_space, + .addr_cnt = ARRAY_SIZE(omap2420_uart3_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, @@ -87,6 +145,9 @@ static struct omap_hwmod_ocp_if *omap2420_l4_core_slaves[] = { /* Master interfaces on the L4_CORE interconnect */ static struct omap_hwmod_ocp_if *omap2420_l4_core_masters[] = { &omap2420_l4_core__l4_wkup, + &omap2_l4_core__uart1, + &omap2_l4_core__uart2, + &omap2_l4_core__uart3, }; /* L4 CORE */ @@ -165,12 +226,144 @@ static struct omap_hwmod omap2420_iva_hwmod = { .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420) }; +/* UART */ + +static struct omap_hwmod_class_sysconfig uart_sysc = { + .rev_offs = 0x50, + .sysc_offs = 0x54, + .syss_offs = 0x58, + .sysc_flags = (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 uart_class = { + .name = "uart", + .sysc = &uart_sysc, +}; + +/* UART1 */ + +static struct omap_hwmod_irq_info uart1_mpu_irqs[] = { + { .irq = INT_24XX_UART1_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart1_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP24XX_DMA_UART1_RX, }, + { .name = "tx", .dma_req = OMAP24XX_DMA_UART1_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap2420_uart1_slaves[] = { + &omap2_l4_core__uart1, +}; + +static struct omap_hwmod omap2420_uart1_hwmod = { + .name = "uart1", + .mpu_irqs = uart1_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart1_mpu_irqs), + .sdma_reqs = uart1_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart1_sdma_reqs), + .main_clk = "uart1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP24XX_EN_UART1_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_EN_UART1_SHIFT, + }, + }, + .slaves = omap2420_uart1_slaves, + .slaves_cnt = ARRAY_SIZE(omap2420_uart1_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420), +}; + +/* UART2 */ + +static struct omap_hwmod_irq_info uart2_mpu_irqs[] = { + { .irq = INT_24XX_UART2_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart2_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP24XX_DMA_UART2_RX, }, + { .name = "tx", .dma_req = OMAP24XX_DMA_UART2_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap2420_uart2_slaves[] = { + &omap2_l4_core__uart2, +}; + +static struct omap_hwmod omap2420_uart2_hwmod = { + .name = "uart2", + .mpu_irqs = uart2_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart2_mpu_irqs), + .sdma_reqs = uart2_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart2_sdma_reqs), + .main_clk = "uart2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP24XX_EN_UART2_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_EN_UART2_SHIFT, + }, + }, + .slaves = omap2420_uart2_slaves, + .slaves_cnt = ARRAY_SIZE(omap2420_uart2_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420), +}; + +/* UART3 */ + +static struct omap_hwmod_irq_info uart3_mpu_irqs[] = { + { .irq = INT_24XX_UART3_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart3_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP24XX_DMA_UART3_RX, }, + { .name = "tx", .dma_req = OMAP24XX_DMA_UART3_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap2420_uart3_slaves[] = { + &omap2_l4_core__uart3, +}; + +static struct omap_hwmod omap2420_uart3_hwmod = { + .name = "uart3", + .mpu_irqs = uart3_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart3_mpu_irqs), + .sdma_reqs = uart3_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart3_sdma_reqs), + .main_clk = "uart3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 2, + .module_bit = OMAP24XX_EN_UART3_SHIFT, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP24XX_EN_UART3_SHIFT, + }, + }, + .slaves = omap2420_uart3_slaves, + .slaves_cnt = ARRAY_SIZE(omap2420_uart3_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420), +}; + static __initdata struct omap_hwmod *omap2420_hwmods[] = { &omap2420_l3_main_hwmod, &omap2420_l4_core_hwmod, &omap2420_l4_wkup_hwmod, &omap2420_mpu_hwmod, &omap2420_iva_hwmod, + &omap2420_uart1_hwmod, + &omap2420_uart2_hwmod, + &omap2420_uart3_hwmod, NULL, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index 4526628ed287..d21073d7eb74 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "omap_hwmod_common_data.h" @@ -71,6 +72,9 @@ static struct omap_hwmod omap2430_l3_main_hwmod = { }; 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; /* L4_CORE -> L4_WKUP interface */ static struct omap_hwmod_ocp_if omap2430_l4_core__l4_wkup = { @@ -79,6 +83,60 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__l4_wkup = { .user = OCP_USER_MPU | OCP_USER_SDMA, }; +/* L4 CORE -> UART1 interface */ +static struct omap_hwmod_addr_space omap2430_uart1_addr_space[] = { + { + .pa_start = OMAP2_UART1_BASE, + .pa_end = OMAP2_UART1_BASE + SZ_8K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap2_l4_core__uart1 = { + .master = &omap2430_l4_core_hwmod, + .slave = &omap2430_uart1_hwmod, + .clk = "uart1_ick", + .addr = omap2430_uart1_addr_space, + .addr_cnt = ARRAY_SIZE(omap2430_uart1_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> UART2 interface */ +static struct omap_hwmod_addr_space omap2430_uart2_addr_space[] = { + { + .pa_start = OMAP2_UART2_BASE, + .pa_end = OMAP2_UART2_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap2_l4_core__uart2 = { + .master = &omap2430_l4_core_hwmod, + .slave = &omap2430_uart2_hwmod, + .clk = "uart2_ick", + .addr = omap2430_uart2_addr_space, + .addr_cnt = ARRAY_SIZE(omap2430_uart2_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART3 interface */ +static struct omap_hwmod_addr_space omap2430_uart3_addr_space[] = { + { + .pa_start = OMAP2_UART3_BASE, + .pa_end = OMAP2_UART3_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap2_l4_core__uart3 = { + .master = &omap2430_l4_core_hwmod, + .slave = &omap2430_uart3_hwmod, + .clk = "uart3_ick", + .addr = omap2430_uart3_addr_space, + .addr_cnt = ARRAY_SIZE(omap2430_uart3_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + /* Slave interfaces on the L4_CORE interconnect */ static struct omap_hwmod_ocp_if *omap2430_l4_core_slaves[] = { &omap2430_l3_main__l4_core, @@ -104,6 +162,9 @@ static struct omap_hwmod omap2430_l4_core_hwmod = { /* Slave interfaces on the L4_WKUP interconnect */ static struct omap_hwmod_ocp_if *omap2430_l4_wkup_slaves[] = { &omap2430_l4_core__l4_wkup, + &omap2_l4_core__uart1, + &omap2_l4_core__uart2, + &omap2_l4_core__uart3, }; /* Master interfaces on the L4_WKUP interconnect */ @@ -165,12 +226,144 @@ static struct omap_hwmod omap2430_iva_hwmod = { .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430) }; +/* UART */ + +static struct omap_hwmod_class_sysconfig uart_sysc = { + .rev_offs = 0x50, + .sysc_offs = 0x54, + .syss_offs = 0x58, + .sysc_flags = (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 uart_class = { + .name = "uart", + .sysc = &uart_sysc, +}; + +/* UART1 */ + +static struct omap_hwmod_irq_info uart1_mpu_irqs[] = { + { .irq = INT_24XX_UART1_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart1_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP24XX_DMA_UART1_RX, }, + { .name = "tx", .dma_req = OMAP24XX_DMA_UART1_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap2430_uart1_slaves[] = { + &omap2_l4_core__uart1, +}; + +static struct omap_hwmod omap2430_uart1_hwmod = { + .name = "uart1", + .mpu_irqs = uart1_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart1_mpu_irqs), + .sdma_reqs = uart1_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart1_sdma_reqs), + .main_clk = "uart1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP24XX_EN_UART1_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_EN_UART1_SHIFT, + }, + }, + .slaves = omap2430_uart1_slaves, + .slaves_cnt = ARRAY_SIZE(omap2430_uart1_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430), +}; + +/* UART2 */ + +static struct omap_hwmod_irq_info uart2_mpu_irqs[] = { + { .irq = INT_24XX_UART2_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart2_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP24XX_DMA_UART2_RX, }, + { .name = "tx", .dma_req = OMAP24XX_DMA_UART2_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap2430_uart2_slaves[] = { + &omap2_l4_core__uart2, +}; + +static struct omap_hwmod omap2430_uart2_hwmod = { + .name = "uart2", + .mpu_irqs = uart2_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart2_mpu_irqs), + .sdma_reqs = uart2_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart2_sdma_reqs), + .main_clk = "uart2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP24XX_EN_UART2_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_EN_UART2_SHIFT, + }, + }, + .slaves = omap2430_uart2_slaves, + .slaves_cnt = ARRAY_SIZE(omap2430_uart2_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430), +}; + +/* UART3 */ + +static struct omap_hwmod_irq_info uart3_mpu_irqs[] = { + { .irq = INT_24XX_UART3_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart3_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP24XX_DMA_UART3_RX, }, + { .name = "tx", .dma_req = OMAP24XX_DMA_UART3_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap2430_uart3_slaves[] = { + &omap2_l4_core__uart3, +}; + +static struct omap_hwmod omap2430_uart3_hwmod = { + .name = "uart3", + .mpu_irqs = uart3_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart3_mpu_irqs), + .sdma_reqs = uart3_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart3_sdma_reqs), + .main_clk = "uart3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 2, + .module_bit = OMAP24XX_EN_UART3_SHIFT, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP24XX_EN_UART3_SHIFT, + }, + }, + .slaves = omap2430_uart3_slaves, + .slaves_cnt = ARRAY_SIZE(omap2430_uart3_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430), +}; + static __initdata struct omap_hwmod *omap2430_hwmods[] = { &omap2430_l3_main_hwmod, &omap2430_l4_core_hwmod, &omap2430_l4_wkup_hwmod, &omap2430_mpu_hwmod, &omap2430_iva_hwmod, + &omap2430_uart1_hwmod, + &omap2430_uart2_hwmod, + &omap2430_uart3_hwmod, NULL, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 5d8eb58ba5e3..5c9cb255a052 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "omap_hwmod_common_data.h" @@ -82,6 +83,10 @@ static struct omap_hwmod omap3xxx_l3_main_hwmod = { }; static struct omap_hwmod omap3xxx_l4_wkup_hwmod; +static struct omap_hwmod omap3xxx_uart1_hwmod; +static struct omap_hwmod omap3xxx_uart2_hwmod; +static struct omap_hwmod omap3xxx_uart3_hwmod; +static struct omap_hwmod omap3xxx_uart4_hwmod; /* L4_CORE -> L4_WKUP interface */ static struct omap_hwmod_ocp_if omap3xxx_l4_core__l4_wkup = { @@ -90,6 +95,78 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_core__l4_wkup = { .user = OCP_USER_MPU | OCP_USER_SDMA, }; +/* L4 CORE -> UART1 interface */ +static struct omap_hwmod_addr_space omap3xxx_uart1_addr_space[] = { + { + .pa_start = OMAP3_UART1_BASE, + .pa_end = OMAP3_UART1_BASE + SZ_8K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap3_l4_core__uart1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_uart1_hwmod, + .clk = "uart1_ick", + .addr = omap3xxx_uart1_addr_space, + .addr_cnt = ARRAY_SIZE(omap3xxx_uart1_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> UART2 interface */ +static struct omap_hwmod_addr_space omap3xxx_uart2_addr_space[] = { + { + .pa_start = OMAP3_UART2_BASE, + .pa_end = OMAP3_UART2_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap3_l4_core__uart2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_uart2_hwmod, + .clk = "uart2_ick", + .addr = omap3xxx_uart2_addr_space, + .addr_cnt = ARRAY_SIZE(omap3xxx_uart2_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART3 interface */ +static struct omap_hwmod_addr_space omap3xxx_uart3_addr_space[] = { + { + .pa_start = OMAP3_UART3_BASE, + .pa_end = OMAP3_UART3_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap3_l4_per__uart3 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_uart3_hwmod, + .clk = "uart3_ick", + .addr = omap3xxx_uart3_addr_space, + .addr_cnt = ARRAY_SIZE(omap3xxx_uart3_addr_space), + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART4 interface */ +static struct omap_hwmod_addr_space omap3xxx_uart4_addr_space[] = { + { + .pa_start = OMAP3_UART4_BASE, + .pa_end = OMAP3_UART4_BASE + SZ_1K - 1, + .flags = ADDR_MAP_ON_INIT | ADDR_TYPE_RT, + }, +}; + +static struct omap_hwmod_ocp_if omap3_l4_per__uart4 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_uart4_hwmod, + .clk = "uart4_ick", + .addr = omap3xxx_uart4_addr_space, + .addr_cnt = ARRAY_SIZE(omap3xxx_uart4_addr_space), + .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, @@ -98,6 +175,8 @@ static struct omap_hwmod_ocp_if *omap3xxx_l4_core_slaves[] = { /* Master interfaces on the L4_CORE interconnect */ static struct omap_hwmod_ocp_if *omap3xxx_l4_core_masters[] = { &omap3xxx_l4_core__l4_wkup, + &omap3_l4_core__uart1, + &omap3_l4_core__uart2, }; /* L4 CORE */ @@ -119,6 +198,8 @@ static struct omap_hwmod_ocp_if *omap3xxx_l4_per_slaves[] = { /* Master interfaces on the L4_PER interconnect */ static struct omap_hwmod_ocp_if *omap3xxx_l4_per_masters[] = { + &omap3_l4_per__uart3, + &omap3_l4_per__uart4, }; /* L4 PER */ @@ -197,6 +278,172 @@ static struct omap_hwmod omap3xxx_iva_hwmod = { .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430) }; +/* UART common */ + +static struct omap_hwmod_class_sysconfig uart_sysc = { + .rev_offs = 0x50, + .sysc_offs = 0x54, + .syss_offs = 0x58, + .sysc_flags = (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 uart_class = { + .name = "uart", + .sysc = &uart_sysc, +}; + +/* UART1 */ + +static struct omap_hwmod_irq_info uart1_mpu_irqs[] = { + { .irq = INT_24XX_UART1_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart1_sdma_reqs[] = { + { .name = "tx", .dma_req = OMAP24XX_DMA_UART1_TX, }, + { .name = "rx", .dma_req = OMAP24XX_DMA_UART1_RX, }, +}; + +static struct omap_hwmod_ocp_if *omap3xxx_uart1_slaves[] = { + &omap3_l4_core__uart1, +}; + +static struct omap_hwmod omap3xxx_uart1_hwmod = { + .name = "uart1", + .mpu_irqs = uart1_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart1_mpu_irqs), + .sdma_reqs = uart1_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart1_sdma_reqs), + .main_clk = "uart1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP3430_EN_UART1_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_UART1_SHIFT, + }, + }, + .slaves = omap3xxx_uart1_slaves, + .slaves_cnt = ARRAY_SIZE(omap3xxx_uart1_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), +}; + +/* UART2 */ + +static struct omap_hwmod_irq_info uart2_mpu_irqs[] = { + { .irq = INT_24XX_UART2_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart2_sdma_reqs[] = { + { .name = "tx", .dma_req = OMAP24XX_DMA_UART2_TX, }, + { .name = "rx", .dma_req = OMAP24XX_DMA_UART2_RX, }, +}; + +static struct omap_hwmod_ocp_if *omap3xxx_uart2_slaves[] = { + &omap3_l4_core__uart2, +}; + +static struct omap_hwmod omap3xxx_uart2_hwmod = { + .name = "uart2", + .mpu_irqs = uart2_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart2_mpu_irqs), + .sdma_reqs = uart2_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart2_sdma_reqs), + .main_clk = "uart2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP3430_EN_UART2_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_UART2_SHIFT, + }, + }, + .slaves = omap3xxx_uart2_slaves, + .slaves_cnt = ARRAY_SIZE(omap3xxx_uart2_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), +}; + +/* UART3 */ + +static struct omap_hwmod_irq_info uart3_mpu_irqs[] = { + { .irq = INT_24XX_UART3_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart3_sdma_reqs[] = { + { .name = "tx", .dma_req = OMAP24XX_DMA_UART3_TX, }, + { .name = "rx", .dma_req = OMAP24XX_DMA_UART3_RX, }, +}; + +static struct omap_hwmod_ocp_if *omap3xxx_uart3_slaves[] = { + &omap3_l4_per__uart3, +}; + +static struct omap_hwmod omap3xxx_uart3_hwmod = { + .name = "uart3", + .mpu_irqs = uart3_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart3_mpu_irqs), + .sdma_reqs = uart3_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart3_sdma_reqs), + .main_clk = "uart3_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP3430_EN_UART3_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_UART3_SHIFT, + }, + }, + .slaves = omap3xxx_uart3_slaves, + .slaves_cnt = ARRAY_SIZE(omap3xxx_uart3_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), +}; + +/* UART4 */ + +static struct omap_hwmod_irq_info uart4_mpu_irqs[] = { + { .irq = INT_36XX_UART4_IRQ, }, +}; + +static struct omap_hwmod_dma_info uart4_sdma_reqs[] = { + { .name = "rx", .dma_req = OMAP36XX_DMA_UART4_RX, }, + { .name = "tx", .dma_req = OMAP36XX_DMA_UART4_TX, }, +}; + +static struct omap_hwmod_ocp_if *omap3xxx_uart4_slaves[] = { + &omap3_l4_per__uart4, +}; + +static struct omap_hwmod omap3xxx_uart4_hwmod = { + .name = "uart4", + .mpu_irqs = uart4_mpu_irqs, + .mpu_irqs_cnt = ARRAY_SIZE(uart4_mpu_irqs), + .sdma_reqs = uart4_sdma_reqs, + .sdma_reqs_cnt = ARRAY_SIZE(uart4_sdma_reqs), + .main_clk = "uart4_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .prcm_reg_id = 1, + .module_bit = OMAP3630_EN_UART4_SHIFT, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3630_EN_UART4_SHIFT, + }, + }, + .slaves = omap3xxx_uart4_slaves, + .slaves_cnt = ARRAY_SIZE(omap3xxx_uart4_slaves), + .class = &uart_class, + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3630ES1), +}; + static __initdata struct omap_hwmod *omap3xxx_hwmods[] = { &omap3xxx_l3_main_hwmod, &omap3xxx_l4_core_hwmod, @@ -204,6 +451,10 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = { &omap3xxx_l4_wkup_hwmod, &omap3xxx_mpu_hwmod, &omap3xxx_iva_hwmod, + &omap3xxx_uart1_hwmod, + &omap3xxx_uart2_hwmod, + &omap3xxx_uart3_hwmod, + &omap3xxx_uart4_hwmod, NULL, }; @@ -211,5 +462,3 @@ int __init omap3xxx_hwmod_init(void) { return omap_hwmod_init(omap3xxx_hwmods); } - - diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 995b7edbf18d..86edcf9ada7c 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -382,6 +382,9 @@ #define OMAP3430_EN_MPU_SHIFT 1 /* CM_FCLKEN_PER, CM_ICLKEN_PER, PM_WKEN_PER shared bits */ + +#define OMAP3630_EN_UART4_MASK (1 << 18) +#define OMAP3630_EN_UART4_SHIFT 18 #define OMAP3430_EN_GPIO6_MASK (1 << 17) #define OMAP3430_EN_GPIO6_SHIFT 17 #define OMAP3430_EN_GPIO5_MASK (1 << 16) diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h index af3a03941add..098f154f5d41 100644 --- a/arch/arm/plat-omap/include/plat/dma.h +++ b/arch/arm/plat-omap/include/plat/dma.h @@ -319,6 +319,8 @@ #define OMAP34XX_DMA_USIM_TX 79 /* S_DMA_78 */ #define OMAP34XX_DMA_USIM_RX 80 /* S_DMA_79 */ +#define OMAP36XX_DMA_UART4_TX 81 /* S_DMA_80 */ +#define OMAP36XX_DMA_UART4_RX 82 /* S_DMA_81 */ /*----------------------------------------------------------------------------*/ #define OMAP1_DMA_TOUT_IRQ (1 << 0) diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h index c01d9f08a198..65e20a686713 100644 --- a/arch/arm/plat-omap/include/plat/irqs.h +++ b/arch/arm/plat-omap/include/plat/irqs.h @@ -345,6 +345,8 @@ #define INT_34XX_MMC3_IRQ 94 #define INT_34XX_GPT12_IRQ 95 +#define INT_36XX_UART4_IRQ 80 + #define INT_35XX_HECC0_IRQ 24 #define INT_35XX_HECC1_IRQ 28 #define INT_35XX_EMAC_C0_RXTHRESH_IRQ 67 -- cgit v1.2.1 From 6f251e9db1093c187addc309b5f2f7fe3efd2995 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Sep 2010 20:19:38 +0530 Subject: OMAP: UART: omap_device conversions, remove implicit 8520 assumptions Major rework of OMAP UART init for omap_device conversion as well as use with either 8250 driver or new omap-serial driver. In preparation for a new omap-serial driver, remove 8250 assumptions and dependencies from the serial core. Convert UART core and PM support to use omap_device layer. Also add support for both console on 8250 or omap-serial driver. omap_device conversion: - Convert clock API calls to omap_device calls - Remove all static platform_data setup and configuration. This is all done by the omap_device build phase. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 529 +++++++++++++++++++++---------------------- 1 file changed, 260 insertions(+), 269 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 566e991ede81..e6c40273dafe 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -19,19 +19,29 @@ */ #include #include -#include #include #include #include #include +#include +#include +#include + +#ifdef CONFIG_SERIAL_OMAP +#include +#endif #include #include #include #include +#include +#include +#include #include "prm.h" #include "pm.h" +#include "cm.h" #include "prm-regbits-34xx.h" #define UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV 0x52 @@ -48,6 +58,8 @@ */ #define DEFAULT_TIMEOUT 0 +#define MAX_UART_HWMOD_NAME_LEN 16 + struct omap_uart_state { int num; int can_sleep; @@ -58,14 +70,21 @@ struct omap_uart_state { void __iomem *wk_en; u32 wk_mask; u32 padconf; + u32 dma_enabled; struct clk *ick; struct clk *fck; int clocked; - struct plat_serial8250_port *p; + int irq; + int regshift; + int irqflags; + void __iomem *membase; + resource_size_t mapbase; + struct list_head node; - struct platform_device pdev; + struct omap_hwmod *oh; + struct platform_device *pdev; u32 errata; #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) @@ -83,75 +102,33 @@ struct omap_uart_state { }; static LIST_HEAD(uart_list); +static u8 num_uarts; -static struct plat_serial8250_port serial_platform_data0[] = { - { - .irq = 72, - .flags = UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = OMAP24XX_BASE_BAUD * 16, - }, { - .flags = 0 - } -}; - -static struct plat_serial8250_port serial_platform_data1[] = { - { - .irq = 73, - .flags = UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = OMAP24XX_BASE_BAUD * 16, - }, { - .flags = 0 - } -}; - -static struct plat_serial8250_port serial_platform_data2[] = { - { - .irq = 74, - .flags = UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = OMAP24XX_BASE_BAUD * 16, - }, { - .flags = 0 - } -}; - -static struct plat_serial8250_port serial_platform_data3[] = { - { - .irq = 70, - .flags = UPF_BOOT_AUTOCONF, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = OMAP24XX_BASE_BAUD * 16, - }, { - .flags = 0 - } -}; void __init omap2_set_globals_uart(struct omap_globals *omap2_globals) { - serial_platform_data0[0].mapbase = omap2_globals->uart1_phys; - serial_platform_data1[0].mapbase = omap2_globals->uart2_phys; - serial_platform_data2[0].mapbase = omap2_globals->uart3_phys; - serial_platform_data3[0].mapbase = omap2_globals->uart4_phys; } +static struct omap_device_pm_latency omap_uart_latency[] = { + { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + }, +}; + static inline unsigned int __serial_read_reg(struct uart_port *up, - int offset) + int offset) { offset <<= up->regshift; return (unsigned int)__raw_readb(up->membase + offset); } -static inline unsigned int serial_read_reg(struct plat_serial8250_port *up, +static inline unsigned int serial_read_reg(struct omap_uart_state *uart, int offset) { - offset <<= up->regshift; - return (unsigned int)__raw_readb(up->membase + offset); + offset <<= uart->regshift; + return (unsigned int)__raw_readb(uart->membase + offset); } static inline void __serial_write_reg(struct uart_port *up, int offset, @@ -161,11 +138,11 @@ static inline void __serial_write_reg(struct uart_port *up, int offset, __raw_writeb(value, up->membase + offset); } -static inline void serial_write_reg(struct plat_serial8250_port *p, int offset, +static inline void serial_write_reg(struct omap_uart_state *uart, int offset, int value) { - offset <<= p->regshift; - __raw_writeb(value, p->membase + offset); + offset <<= uart->regshift; + __raw_writeb(value, uart->membase + offset); } /* @@ -173,14 +150,12 @@ static inline void serial_write_reg(struct plat_serial8250_port *p, int offset, * properly. Note that the TX watermark initialization may not be needed * once the 8250.c watermark handling code is merged. */ + static inline void __init omap_uart_reset(struct omap_uart_state *uart) { - struct plat_serial8250_port *p = uart->p; - - serial_write_reg(p, UART_OMAP_MDR1, 0x07); - serial_write_reg(p, UART_OMAP_SCR, 0x08); - serial_write_reg(p, UART_OMAP_MDR1, 0x00); - serial_write_reg(p, UART_OMAP_SYSC, (0x02 << 3) | (1 << 2) | (1 << 0)); + serial_write_reg(uart, UART_OMAP_MDR1, 0x07); + serial_write_reg(uart, UART_OMAP_SCR, 0x08); + serial_write_reg(uart, UART_OMAP_MDR1, 0x00); } #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) @@ -197,24 +172,23 @@ static inline void __init omap_uart_reset(struct omap_uart_state *uart) static void omap_uart_mdr1_errataset(struct omap_uart_state *uart, u8 mdr1_val, u8 fcr_val) { - struct plat_serial8250_port *p = uart->p; u8 timeout = 255; - serial_write_reg(p, UART_OMAP_MDR1, mdr1_val); + serial_write_reg(uart, UART_OMAP_MDR1, mdr1_val); udelay(2); - serial_write_reg(p, UART_FCR, fcr_val | UART_FCR_CLEAR_XMIT | + serial_write_reg(uart, UART_FCR, fcr_val | UART_FCR_CLEAR_XMIT | UART_FCR_CLEAR_RCVR); /* * Wait for FIFO to empty: when empty, RX_FIFO_E bit is 0 and * TX_FIFO_E bit is 1. */ - while (UART_LSR_THRE != (serial_read_reg(p, UART_LSR) & + while (UART_LSR_THRE != (serial_read_reg(uart, UART_LSR) & (UART_LSR_THRE | UART_LSR_DR))) { timeout--; if (!timeout) { /* Should *never* happen. we warn and carry on */ - dev_crit(&uart->pdev.dev, "Errata i202: timedout %x\n", - serial_read_reg(p, UART_LSR)); + dev_crit(&uart->pdev->dev, "Errata i202: timedout %x\n", + serial_read_reg(uart, UART_LSR)); break; } udelay(1); @@ -224,23 +198,22 @@ static void omap_uart_mdr1_errataset(struct omap_uart_state *uart, u8 mdr1_val, static void omap_uart_save_context(struct omap_uart_state *uart) { u16 lcr = 0; - struct plat_serial8250_port *p = uart->p; if (!enable_off_mode) return; - lcr = serial_read_reg(p, UART_LCR); - serial_write_reg(p, UART_LCR, 0xBF); - uart->dll = serial_read_reg(p, UART_DLL); - uart->dlh = serial_read_reg(p, UART_DLM); - serial_write_reg(p, UART_LCR, lcr); - uart->ier = serial_read_reg(p, UART_IER); - uart->sysc = serial_read_reg(p, UART_OMAP_SYSC); - uart->scr = serial_read_reg(p, UART_OMAP_SCR); - uart->wer = serial_read_reg(p, UART_OMAP_WER); - serial_write_reg(p, UART_LCR, 0x80); - uart->mcr = serial_read_reg(p, UART_MCR); - serial_write_reg(p, UART_LCR, lcr); + lcr = serial_read_reg(uart, UART_LCR); + serial_write_reg(uart, UART_LCR, 0xBF); + uart->dll = serial_read_reg(uart, UART_DLL); + uart->dlh = serial_read_reg(uart, UART_DLM); + serial_write_reg(uart, UART_LCR, lcr); + uart->ier = serial_read_reg(uart, UART_IER); + uart->sysc = serial_read_reg(uart, UART_OMAP_SYSC); + uart->scr = serial_read_reg(uart, UART_OMAP_SCR); + uart->wer = serial_read_reg(uart, UART_OMAP_WER); + serial_write_reg(uart, UART_LCR, 0x80); + uart->mcr = serial_read_reg(uart, UART_MCR); + serial_write_reg(uart, UART_LCR, lcr); uart->context_valid = 1; } @@ -248,7 +221,6 @@ static void omap_uart_save_context(struct omap_uart_state *uart) static void omap_uart_restore_context(struct omap_uart_state *uart) { u16 efr = 0; - struct plat_serial8250_port *p = uart->p; if (!enable_off_mode) return; @@ -261,29 +233,30 @@ static void omap_uart_restore_context(struct omap_uart_state *uart) if (uart->errata & UART_ERRATA_i202_MDR1_ACCESS) omap_uart_mdr1_errataset(uart, 0x07, 0xA0); else - serial_write_reg(p, UART_OMAP_MDR1, 0x7); - serial_write_reg(p, UART_LCR, 0xBF); /* Config B mode */ - efr = serial_read_reg(p, UART_EFR); - serial_write_reg(p, UART_EFR, UART_EFR_ECB); - serial_write_reg(p, UART_LCR, 0x0); /* Operational mode */ - serial_write_reg(p, UART_IER, 0x0); - serial_write_reg(p, UART_LCR, 0xBF); /* Config B mode */ - serial_write_reg(p, UART_DLL, uart->dll); - serial_write_reg(p, UART_DLM, uart->dlh); - serial_write_reg(p, UART_LCR, 0x0); /* Operational mode */ - serial_write_reg(p, UART_IER, uart->ier); - serial_write_reg(p, UART_LCR, 0x80); - serial_write_reg(p, UART_MCR, uart->mcr); - serial_write_reg(p, UART_LCR, 0xBF); /* Config B mode */ - serial_write_reg(p, UART_EFR, efr); - serial_write_reg(p, UART_LCR, UART_LCR_WLEN8); - serial_write_reg(p, UART_OMAP_SCR, uart->scr); - serial_write_reg(p, UART_OMAP_WER, uart->wer); - serial_write_reg(p, UART_OMAP_SYSC, uart->sysc); + serial_write_reg(uart, UART_OMAP_MDR1, 0x7); + serial_write_reg(uart, UART_LCR, 0xBF); /* Config B mode */ + efr = serial_read_reg(uart, UART_EFR); + serial_write_reg(uart, UART_EFR, UART_EFR_ECB); + serial_write_reg(uart, UART_LCR, 0x0); /* Operational mode */ + serial_write_reg(uart, UART_IER, 0x0); + serial_write_reg(uart, UART_LCR, 0xBF); /* Config B mode */ + serial_write_reg(uart, UART_DLL, uart->dll); + serial_write_reg(uart, UART_DLM, uart->dlh); + serial_write_reg(uart, UART_LCR, 0x0); /* Operational mode */ + serial_write_reg(uart, UART_IER, uart->ier); + serial_write_reg(uart, UART_LCR, 0x80); + serial_write_reg(uart, UART_MCR, uart->mcr); + serial_write_reg(uart, UART_LCR, 0xBF); /* Config B mode */ + serial_write_reg(uart, UART_EFR, efr); + serial_write_reg(uart, UART_LCR, UART_LCR_WLEN8); + serial_write_reg(uart, UART_OMAP_SCR, uart->scr); + serial_write_reg(uart, UART_OMAP_WER, uart->wer); + serial_write_reg(uart, UART_OMAP_SYSC, uart->sysc); if (uart->errata & UART_ERRATA_i202_MDR1_ACCESS) omap_uart_mdr1_errataset(uart, 0x00, 0xA1); else - serial_write_reg(p, UART_OMAP_MDR1, 0x00); /* UART 16x mode */ + /* UART 16x mode */ + serial_write_reg(uart, UART_OMAP_MDR1, 0x00); } #else static inline void omap_uart_save_context(struct omap_uart_state *uart) {} @@ -295,8 +268,7 @@ static inline void omap_uart_enable_clocks(struct omap_uart_state *uart) if (uart->clocked) return; - clk_enable(uart->ick); - clk_enable(uart->fck); + omap_device_enable(uart->pdev); uart->clocked = 1; omap_uart_restore_context(uart); } @@ -310,8 +282,7 @@ static inline void omap_uart_disable_clocks(struct omap_uart_state *uart) omap_uart_save_context(uart); uart->clocked = 0; - clk_disable(uart->ick); - clk_disable(uart->fck); + omap_device_idle(uart->pdev); } static void omap_uart_enable_wakeup(struct omap_uart_state *uart) @@ -349,18 +320,24 @@ static void omap_uart_disable_wakeup(struct omap_uart_state *uart) } static void omap_uart_smart_idle_enable(struct omap_uart_state *uart, - int enable) + int enable) { - struct plat_serial8250_port *p = uart->p; - u16 sysc; + u8 idlemode; - sysc = serial_read_reg(p, UART_OMAP_SYSC) & 0x7; - if (enable) - sysc |= 0x2 << 3; - else - sysc |= 0x1 << 3; + if (enable) { + /** + * Errata 2.15: [UART]:Cannot Acknowledge Idle Requests + * in Smartidle Mode When Configured for DMA Operations. + */ + if (uart->dma_enabled) + idlemode = HWMOD_IDLEMODE_FORCE; + else + idlemode = HWMOD_IDLEMODE_SMART; + } else { + idlemode = HWMOD_IDLEMODE_NO; + } - serial_write_reg(p, UART_OMAP_SYSC, sysc); + omap_hwmod_set_slave_idlemode(uart->oh, idlemode); } static void omap_uart_block_sleep(struct omap_uart_state *uart) @@ -377,7 +354,7 @@ static void omap_uart_block_sleep(struct omap_uart_state *uart) static void omap_uart_allow_sleep(struct omap_uart_state *uart) { - if (device_may_wakeup(&uart->pdev.dev)) + if (device_may_wakeup(&uart->pdev->dev)) omap_uart_enable_wakeup(uart); else omap_uart_disable_wakeup(uart); @@ -472,6 +449,7 @@ int omap_uart_can_sleep(void) * UART will not idle or sleep for its timeout period. * **/ +/* static int first_interrupt; */ static irqreturn_t omap_uart_interrupt(int irq, void *dev_id) { struct omap_uart_state *uart = dev_id; @@ -483,7 +461,6 @@ static irqreturn_t omap_uart_interrupt(int irq, void *dev_id) static void omap_uart_idle_init(struct omap_uart_state *uart) { - struct plat_serial8250_port *p = uart->p; int ret; uart->can_sleep = 0; @@ -546,9 +523,9 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) uart->padconf = 0; } - p->irqflags |= IRQF_SHARED; - ret = request_irq(p->irq, omap_uart_interrupt, IRQF_SHARED, - "serial idle", (void *)uart); + uart->irqflags |= IRQF_SHARED; + ret = request_threaded_irq(uart->irq, NULL, omap_uart_interrupt, + IRQF_SHARED, "serial idle", (void *)uart); WARN_ON(ret); } @@ -559,10 +536,13 @@ void omap_uart_enable_irqs(int enable) list_for_each_entry(uart, &uart_list, node) { if (enable) - ret = request_irq(uart->p->irq, omap_uart_interrupt, - IRQF_SHARED, "serial idle", (void *)uart); + ret = request_threaded_irq(uart->irq, NULL, + omap_uart_interrupt, + IRQF_SHARED, + "serial idle", + (void *)uart); else - free_irq(uart->p->irq, (void *)uart); + free_irq(uart->irq, (void *)uart); } } @@ -570,10 +550,9 @@ static ssize_t sleep_timeout_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct platform_device *pdev = container_of(dev, - struct platform_device, dev); - struct omap_uart_state *uart = container_of(pdev, - struct omap_uart_state, pdev); + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *odev = to_omap_device(pdev); + struct omap_uart_state *uart = odev->hwmods[0]->dev_attr; return sprintf(buf, "%u\n", uart->timeout / HZ); } @@ -582,10 +561,9 @@ static ssize_t sleep_timeout_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t n) { - struct platform_device *pdev = container_of(dev, - struct platform_device, dev); - struct omap_uart_state *uart = container_of(pdev, - struct omap_uart_state, pdev); + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *odev = to_omap_device(pdev); + struct omap_uart_state *uart = odev->hwmods[0]->dev_attr; unsigned int value; if (sscanf(buf, "%u", &value) != 1) { @@ -608,48 +586,11 @@ static DEVICE_ATTR(sleep_timeout, 0644, sleep_timeout_show, #define DEV_CREATE_FILE(dev, attr) WARN_ON(device_create_file(dev, attr)) #else static inline void omap_uart_idle_init(struct omap_uart_state *uart) {} +static void omap_uart_block_sleep(struct omap_uart_state *uart) {} #define DEV_CREATE_FILE(dev, attr) #endif /* CONFIG_PM */ -static struct omap_uart_state omap_uart[] = { - { - .pdev = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = serial_platform_data0, - }, - }, - }, { - .pdev = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM1, - .dev = { - .platform_data = serial_platform_data1, - }, - }, - }, { - .pdev = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM2, - .dev = { - .platform_data = serial_platform_data2, - }, - }, - }, -#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) - { - .pdev = { - .name = "serial8250", - .id = 3, - .dev = { - .platform_data = serial_platform_data3, - }, - }, - }, -#endif -}; - +#ifndef CONFIG_SERIAL_OMAP /* * Override the default 8250 read handler: mem_serial_in() * Empty RX fifo read causes an abort on omap3630 and omap4 @@ -682,71 +623,44 @@ static void serial_out_override(struct uart_port *up, int offset, int value) } __serial_write_reg(up, offset, value); } +#endif + void __init omap_serial_early_init(void) { - int i, nr_ports; - char name[16]; + int i = 0; - if (!(cpu_is_omap3630() || cpu_is_omap4430())) - nr_ports = 3; - else - nr_ports = ARRAY_SIZE(omap_uart); + do { + char oh_name[MAX_UART_HWMOD_NAME_LEN]; + struct omap_hwmod *oh; + struct omap_uart_state *uart; - /* - * Make sure the serial ports are muxed on at this point. - * You have to mux them off in device drivers later on - * if not needed. - */ + snprintf(oh_name, MAX_UART_HWMOD_NAME_LEN, + "uart%d", i + 1); + oh = omap_hwmod_lookup(oh_name); + if (!oh) + break; + + uart = kzalloc(sizeof(struct omap_uart_state), GFP_KERNEL); + if (WARN_ON(!uart)) + return; - for (i = 0; i < nr_ports; i++) { - struct omap_uart_state *uart = &omap_uart[i]; - struct platform_device *pdev = &uart->pdev; - struct device *dev = &pdev->dev; - struct plat_serial8250_port *p = dev->platform_data; + uart->oh = oh; + uart->num = i++; + list_add_tail(&uart->node, &uart_list); + num_uarts++; - /* Don't map zero-based physical address */ - if (p->mapbase == 0) { - dev_warn(dev, "no physical address for uart#%d," - " so skipping early_init...\n", i); - continue; - } /* - * Module 4KB + L4 interconnect 4KB - * Static mapping, never released + * NOTE: omap_hwmod_init() has not yet been called, + * so no hwmod functions will work yet. */ - p->membase = ioremap(p->mapbase, SZ_8K); - if (!p->membase) { - dev_err(dev, "ioremap failed for uart%i\n", i + 1); - continue; - } - - sprintf(name, "uart%d_ick", i + 1); - uart->ick = clk_get(NULL, name); - if (IS_ERR(uart->ick)) { - dev_err(dev, "Could not get uart%d_ick\n", i + 1); - uart->ick = NULL; - } - sprintf(name, "uart%d_fck", i+1); - uart->fck = clk_get(NULL, name); - if (IS_ERR(uart->fck)) { - dev_err(dev, "Could not get uart%d_fck\n", i + 1); - uart->fck = NULL; - } - - /* FIXME: Remove this once the clkdev is ready */ - if (!cpu_is_omap44xx()) { - if (!uart->ick || !uart->fck) - continue; - } - - uart->num = i; - p->private_data = uart; - uart->p = p; - - if (cpu_is_omap44xx()) - p->irq += 32; - } + /* + * During UART early init, device need to be probed + * to determine SoC specific init before omap_device + * is ready. Therefore, don't allow idle here + */ + uart->oh->flags |= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET; + } while (1); } /** @@ -763,53 +677,135 @@ void __init omap_serial_early_init(void) void __init omap_serial_init_port(int port) { struct omap_uart_state *uart; - struct platform_device *pdev; - struct device *dev; - - BUG_ON(port < 0); - BUG_ON(port >= ARRAY_SIZE(omap_uart)); - - uart = &omap_uart[port]; - pdev = &uart->pdev; - dev = &pdev->dev; + struct omap_hwmod *oh; + struct omap_device *od; + void *pdata = NULL; + u32 pdata_size = 0; + char *name; +#ifndef CONFIG_SERIAL_OMAP + struct plat_serial8250_port ports[2] = { + {}, + {.flags = 0}, + }; + struct plat_serial8250_port *p = &ports[0]; +#else + struct omap_uart_port_info omap_up; +#endif - /* Don't proceed if there's no clocks available */ - if (unlikely(!uart->ick || !uart->fck)) { - WARN(1, "%s: can't init uart%d, no clocks available\n", - kobject_name(&dev->kobj), port); + if (WARN_ON(port < 0)) + return; + if (WARN_ON(port >= num_uarts)) return; - } - - omap_uart_enable_clocks(uart); - - omap_uart_reset(uart); - omap_uart_idle_init(uart); - list_add_tail(&uart->node, &uart_list); + list_for_each_entry(uart, &uart_list, node) + if (port == uart->num) + break; - if (WARN_ON(platform_device_register(pdev))) - return; + oh = uart->oh; + uart->dma_enabled = 0; +#ifndef CONFIG_SERIAL_OMAP + name = "serial8250"; - if ((cpu_is_omap34xx() && uart->padconf) || - (uart->wk_en && uart->wk_mask)) { - device_init_wakeup(dev, true); - DEV_CREATE_FILE(dev, &dev_attr_sleep_timeout); - } + /* + * !! 8250 driver does not use standard IORESOURCE* It + * has it's own custom pdata that can be taken from + * the hwmod resource data. But, this needs to be + * done after the build. + * + * ?? does it have to be done before the register ?? + * YES, because platform_device_data_add() copies + * pdata, it does not use a pointer. + */ + p->flags = UPF_BOOT_AUTOCONF; + p->iotype = UPIO_MEM; + p->regshift = 2; + p->uartclk = OMAP24XX_BASE_BAUD * 16; + p->irq = oh->mpu_irqs[0].irq; + p->mapbase = oh->slaves[0]->addr->pa_start; + p->membase = omap_hwmod_get_mpu_rt_va(oh); + p->irqflags = IRQF_SHARED; + p->private_data = uart; /* * omap44xx: Never read empty UART fifo * omap3xxx: Never read empty UART fifo on UARTs * with IP rev >=0x52 */ + uart->regshift = p->regshift; + uart->membase = p->membase; if (cpu_is_omap44xx()) uart->errata |= UART_ERRATA_FIFO_FULL_ABORT; - else if ((serial_read_reg(uart->p, UART_OMAP_MVER) & 0xFF) + else if ((serial_read_reg(uart, UART_OMAP_MVER) & 0xFF) >= UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV) uart->errata |= UART_ERRATA_FIFO_FULL_ABORT; if (uart->errata & UART_ERRATA_FIFO_FULL_ABORT) { - uart->p->serial_in = serial_in_override; - uart->p->serial_out = serial_out_override; + p->serial_in = serial_in_override; + p->serial_out = serial_out_override; + } + + pdata = &ports[0]; + pdata_size = 2 * sizeof(struct plat_serial8250_port); +#else + + name = DRIVER_NAME; + + omap_up.dma_enabled = uart->dma_enabled; + omap_up.uartclk = OMAP24XX_BASE_BAUD * 16; + omap_up.mapbase = oh->slaves[0]->addr->pa_start; + omap_up.membase = omap_hwmod_get_mpu_rt_va(oh); + omap_up.irqflags = IRQF_SHARED; + omap_up.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; + + pdata = &omap_up; + pdata_size = sizeof(struct omap_uart_port_info); +#endif + + if (WARN_ON(!oh)) + return; + + od = omap_device_build(name, uart->num, oh, pdata, pdata_size, + omap_uart_latency, + ARRAY_SIZE(omap_uart_latency), false); + WARN(IS_ERR(od), "Could not build omap_device for %s: %s.\n", + name, oh->name); + + uart->irq = oh->mpu_irqs[0].irq; + uart->regshift = 2; + uart->mapbase = oh->slaves[0]->addr->pa_start; + uart->membase = omap_hwmod_get_mpu_rt_va(oh); + uart->pdev = &od->pdev; + + oh->dev_attr = uart; + + /* + * Because of early UART probing, UART did not get idled + * on init. Now that omap_device is ready, ensure full idle + * before doing omap_device_enable(). + */ + omap_hwmod_idle(uart->oh); + + omap_device_enable(uart->pdev); + omap_uart_idle_init(uart); + omap_uart_reset(uart); + omap_hwmod_enable_wakeup(uart->oh); + omap_device_idle(uart->pdev); + + /* + * Need to block sleep long enough for interrupt driven + * driver to start. Console driver is in polling mode + * so device needs to be kept enabled while polling driver + * is in use. + */ + if (uart->timeout) + uart->timeout = (30 * HZ); + omap_uart_block_sleep(uart); + uart->timeout = DEFAULT_TIMEOUT; + + if ((cpu_is_omap34xx() && uart->padconf) || + (uart->wk_en && uart->wk_mask)) { + device_init_wakeup(&od->pdev.dev, true); + DEV_CREATE_FILE(&od->pdev.dev, &dev_attr_sleep_timeout); } /* Enable the MDR1 errata for OMAP3 */ @@ -826,13 +822,8 @@ void __init omap_serial_init_port(int port) */ void __init omap_serial_init(void) { - int i, nr_ports; - - if (!(cpu_is_omap3630() || cpu_is_omap4430())) - nr_ports = 3; - else - nr_ports = ARRAY_SIZE(omap_uart); + struct omap_uart_state *uart; - for (i = 0; i < nr_ports; i++) - omap_serial_init_port(i); + list_for_each_entry(uart, &uart_list, node) + omap_serial_init_port(uart->num); } -- cgit v1.2.1 From c04ede382a64020f19e9aa23a85493a09af945d3 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:19:46 +0530 Subject: OMAP2: UART: remove set_uart_globals Remove set_uart_globals function as this will not be needed as physical address for uarts will be taken from hwmod data file. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 5 ----- arch/arm/plat-omap/common.c | 16 ---------------- arch/arm/plat-omap/include/plat/common.h | 1 - 3 files changed, 22 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index e6c40273dafe..6ffbc924c4d4 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -104,11 +104,6 @@ struct omap_uart_state { static LIST_HEAD(uart_list); static u8 num_uarts; - -void __init omap2_set_globals_uart(struct omap_globals *omap2_globals) -{ -} - static struct omap_device_pm_latency omap_uart_latency[] = { { .deactivate_func = omap_device_idle_hwmods, diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 7d668b3b5363..947de3fb93f3 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -257,7 +257,6 @@ static void __init __omap2_set_globals(struct omap_globals *omap2_globals) omap2_set_globals_sdrc(omap2_globals); omap2_set_globals_control(omap2_globals); omap2_set_globals_prcm(omap2_globals); - omap2_set_globals_uart(omap2_globals); } #endif @@ -272,9 +271,6 @@ static struct omap_globals omap242x_globals = { .ctrl = OMAP2420_CTRL_BASE, .prm = OMAP2420_PRM_BASE, .cm = OMAP2420_CM_BASE, - .uart1_phys = OMAP2_UART1_BASE, - .uart2_phys = OMAP2_UART2_BASE, - .uart3_phys = OMAP2_UART3_BASE, }; void __init omap2_set_globals_242x(void) @@ -293,9 +289,6 @@ static struct omap_globals omap243x_globals = { .ctrl = OMAP243X_CTRL_BASE, .prm = OMAP2430_PRM_BASE, .cm = OMAP2430_CM_BASE, - .uart1_phys = OMAP2_UART1_BASE, - .uart2_phys = OMAP2_UART2_BASE, - .uart3_phys = OMAP2_UART3_BASE, }; void __init omap2_set_globals_243x(void) @@ -314,10 +307,6 @@ static struct omap_globals omap3_globals = { .ctrl = OMAP343X_CTRL_BASE, .prm = OMAP3430_PRM_BASE, .cm = OMAP3430_CM_BASE, - .uart1_phys = OMAP3_UART1_BASE, - .uart2_phys = OMAP3_UART2_BASE, - .uart3_phys = OMAP3_UART3_BASE, - .uart4_phys = OMAP3_UART4_BASE, /* Only on 3630 */ }; void __init omap2_set_globals_3xxx(void) @@ -341,10 +330,6 @@ static struct omap_globals omap4_globals = { .prm = OMAP4430_PRM_BASE, .cm = OMAP4430_CM_BASE, .cm2 = OMAP4430_CM2_BASE, - .uart1_phys = OMAP4_UART1_BASE, - .uart2_phys = OMAP4_UART2_BASE, - .uart3_phys = OMAP4_UART3_BASE, - .uart4_phys = OMAP4_UART4_BASE, }; void __init omap2_set_globals_443x(void) @@ -352,7 +337,6 @@ void __init omap2_set_globals_443x(void) omap2_set_globals_tap(&omap4_globals); omap2_set_globals_control(&omap4_globals); omap2_set_globals_prcm(&omap4_globals); - omap2_set_globals_uart(&omap4_globals); } #endif diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-omap/include/plat/common.h index 2d8f98d7ae50..a9d69a09920d 100644 --- a/arch/arm/plat-omap/include/plat/common.h +++ b/arch/arm/plat-omap/include/plat/common.h @@ -67,7 +67,6 @@ void omap2_set_globals_tap(struct omap_globals *); void omap2_set_globals_sdrc(struct omap_globals *); void omap2_set_globals_control(struct omap_globals *); void omap2_set_globals_prcm(struct omap_globals *); -void omap2_set_globals_uart(struct omap_globals *); void omap3_map_io(void); -- cgit v1.2.1 From 3244fcd227526a2f21018a280c7af0a9219c6ff4 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Sep 2010 20:19:53 +0530 Subject: OMAP: UART: don't do automatic bus-level suspend/resume Since the omap_device for UART is currently managed inside the idle path itself, don't let the bus-level code suspend/resume the UART. To prevent this, pm_runtime_get() is used when preparing for suspend and pm_runtime_put() is used when finished with suspend. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 6ffbc924c4d4..ff83e91e6109 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -26,6 +26,7 @@ #include #include #include +#include #ifdef CONFIG_SERIAL_OMAP #include @@ -530,14 +531,17 @@ void omap_uart_enable_irqs(int enable) struct omap_uart_state *uart; list_for_each_entry(uart, &uart_list, node) { - if (enable) + if (enable) { + pm_runtime_put_sync(&uart->pdev->dev); ret = request_threaded_irq(uart->irq, NULL, omap_uart_interrupt, IRQF_SHARED, "serial idle", (void *)uart); - else + } else { + pm_runtime_get_noresume(&uart->pdev->dev); free_irq(uart->irq, (void *)uart); + } } } -- cgit v1.2.1 From 8da37d9dc52befa8b55bdc20eef2a4aaf20e0c8d Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 27 Sep 2010 20:20:06 +0530 Subject: OMAP: UART: use non-locking versions of hwmod enable/idle functions Since the UART enable/idle is done during the idle path (with interrupts disabled), use the non-locking versions of the hwmod enable/idle functions. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index ff83e91e6109..72b5c9896390 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -105,10 +105,29 @@ struct omap_uart_state { static LIST_HEAD(uart_list); static u8 num_uarts; +/* + * Since these idle/enable hooks are used in the idle path itself + * which has interrupts disabled, use the non-locking versions of + * the hwmod enable/disable functions. + */ +static int uart_idle_hwmod(struct omap_device *od) +{ + _omap_hwmod_idle(od->hwmods[0]); + + return 0; +} + +static int uart_enable_hwmod(struct omap_device *od) +{ + _omap_hwmod_enable(od->hwmods[0]); + + return 0; +} + static struct omap_device_pm_latency omap_uart_latency[] = { { - .deactivate_func = omap_device_idle_hwmods, - .activate_func = omap_device_enable_hwmods, + .deactivate_func = uart_idle_hwmod, + .activate_func = uart_enable_hwmod, .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, }, }; -- cgit v1.2.1 From a0edcdbe5295b7912e92ff88dd8f46646710735b Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:20:17 +0530 Subject: OMAP clock: Add uart4_ick/fck definitions for 3630 This is only valid for omap 36xx family of chips. Signed-off-by: Sergio Aguirre Signed-off-by: Govindraj.R Acked-by: Paul Walmsley Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/clock3xxx_data.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index c73906d17458..ba01ec0cae45 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -2465,6 +2465,16 @@ static struct clk uart3_fck = { .recalc = &followparent_recalc, }; +static struct clk uart4_fck = { + .name = "uart4_fck", + .ops = &clkops_omap2_dflt_wait, + .parent = &per_48m_fck, + .enable_reg = OMAP_CM_REGADDR(OMAP3430_PER_MOD, CM_FCLKEN), + .enable_bit = OMAP3630_EN_UART4_SHIFT, + .clkdm_name = "per_clkdm", + .recalc = &followparent_recalc, +}; + static struct clk gpt2_fck = { .name = "gpt2_fck", .ops = &clkops_omap2_dflt_wait, @@ -2715,6 +2725,16 @@ static struct clk uart3_ick = { .recalc = &followparent_recalc, }; +static struct clk uart4_ick = { + .name = "uart4_ick", + .ops = &clkops_omap2_dflt_wait, + .parent = &per_l4_ick, + .enable_reg = OMAP_CM_REGADDR(OMAP3430_PER_MOD, CM_ICLKEN), + .enable_bit = OMAP3630_EN_UART4_SHIFT, + .clkdm_name = "per_clkdm", + .recalc = &followparent_recalc, +}; + static struct clk gpt9_ick = { .name = "gpt9_ick", .ops = &clkops_omap2_dflt_wait, @@ -3349,6 +3369,7 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "per_96m_fck", &per_96m_fck, CK_3XXX), CLK(NULL, "per_48m_fck", &per_48m_fck, CK_3XXX), CLK(NULL, "uart3_fck", &uart3_fck, CK_3XXX), + CLK(NULL, "uart4_fck", &uart4_fck, CK_36XX), CLK(NULL, "gpt2_fck", &gpt2_fck, CK_3XXX), CLK(NULL, "gpt3_fck", &gpt3_fck, CK_3XXX), CLK(NULL, "gpt4_fck", &gpt4_fck, CK_3XXX), @@ -3372,6 +3393,7 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "gpio2_ick", &gpio2_ick, CK_3XXX), CLK(NULL, "wdt3_ick", &wdt3_ick, CK_3XXX), CLK(NULL, "uart3_ick", &uart3_ick, CK_3XXX), + CLK(NULL, "uart4_ick", &uart4_ick, CK_36XX), CLK(NULL, "gpt9_ick", &gpt9_ick, CK_3XXX), CLK(NULL, "gpt8_ick", &gpt8_ick, CK_3XXX), CLK(NULL, "gpt7_ick", &gpt7_ick, CK_3XXX), -- cgit v1.2.1 From e586368904b737b4888927e4c869a25966e5cd05 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:20:25 +0530 Subject: OMAP3: PRCM: Consider UART4 for 3630 chip in prcm_setup_regs To standarize among other uarts (1 to 3), we shall now: - Enable uart4 autodile bit. - Enable uart4 wakeup in PER. - Allow uart4 to wakeup the MPU. Signed-off-by: Sergio Aguirre Signed-off-by: Govindraj.R Acked-by: Paul Walmsley Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/cm-regbits-34xx.h | 2 ++ arch/arm/mach-omap2/pm34xx.c | 15 +++++++++++++-- arch/arm/mach-omap2/prcm-common.h | 2 ++ arch/arm/mach-omap2/prm-regbits-34xx.h | 1 + 4 files changed, 18 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h index fe82b79d5f3b..4f959a7d881c 100644 --- a/arch/arm/mach-omap2/cm-regbits-34xx.h +++ b/arch/arm/mach-omap2/cm-regbits-34xx.h @@ -649,6 +649,8 @@ #define OMAP3430_ST_MCBSP2_MASK (1 << 0) /* CM_AUTOIDLE_PER */ +#define OMAP3630_AUTO_UART4_MASK (1 << 18) +#define OMAP3630_AUTO_UART4_SHIFT 18 #define OMAP3430_AUTO_GPIO6_MASK (1 << 17) #define OMAP3430_AUTO_GPIO6_SHIFT 17 #define OMAP3430_AUTO_GPIO5_MASK (1 << 16) diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index d2b940c7215d..043faaa3f3dc 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -676,6 +676,14 @@ static void __init omap3_d2d_idle(void) static void __init prcm_setup_regs(void) { + u32 omap3630_auto_uart4_mask = cpu_is_omap3630() ? + OMAP3630_AUTO_UART4_MASK : 0; + u32 omap3630_en_uart4_mask = cpu_is_omap3630() ? + OMAP3630_EN_UART4_MASK : 0; + u32 omap3630_grpsel_uart4_mask = cpu_is_omap3630() ? + OMAP3630_GRPSEL_UART4_MASK : 0; + + /* XXX Reset all wkdeps. This should be done when initializing * powerdomains */ prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP); @@ -762,6 +770,7 @@ static void __init prcm_setup_regs(void) CM_AUTOIDLE); cm_write_mod_reg( + omap3630_auto_uart4_mask | OMAP3430_AUTO_GPIO6_MASK | OMAP3430_AUTO_GPIO5_MASK | OMAP3430_AUTO_GPIO4_MASK | @@ -838,14 +847,16 @@ static void __init prcm_setup_regs(void) OMAP3430_DSS_MOD, PM_WKEN); /* Enable wakeups in PER */ - prm_write_mod_reg(OMAP3430_EN_GPIO2_MASK | OMAP3430_EN_GPIO3_MASK | + prm_write_mod_reg(omap3630_en_uart4_mask | + OMAP3430_EN_GPIO2_MASK | OMAP3430_EN_GPIO3_MASK | OMAP3430_EN_GPIO4_MASK | OMAP3430_EN_GPIO5_MASK | OMAP3430_EN_GPIO6_MASK | OMAP3430_EN_UART3_MASK | OMAP3430_EN_MCBSP2_MASK | OMAP3430_EN_MCBSP3_MASK | OMAP3430_EN_MCBSP4_MASK, OMAP3430_PER_MOD, PM_WKEN); /* and allow them to wake up MPU */ - prm_write_mod_reg(OMAP3430_GRPSEL_GPIO2_MASK | + prm_write_mod_reg(omap3630_grpsel_uart4_mask | + OMAP3430_GRPSEL_GPIO2_MASK | OMAP3430_GRPSEL_GPIO3_MASK | OMAP3430_GRPSEL_GPIO4_MASK | OMAP3430_GRPSEL_GPIO5_MASK | diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 86edcf9ada7c..298a22a754e2 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -425,6 +425,8 @@ #define OMAP3430_EN_MCBSP2_SHIFT 0 /* CM_IDLEST_PER, PM_WKST_PER shared bits */ +#define OMAP3630_ST_UART4_SHIFT 18 +#define OMAP3630_ST_UART4_MASK (1 << 18) #define OMAP3430_ST_GPIO6_SHIFT 17 #define OMAP3430_ST_GPIO6_MASK (1 << 17) #define OMAP3430_ST_GPIO5_SHIFT 16 diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h b/arch/arm/mach-omap2/prm-regbits-34xx.h index 7fd6023edf96..9e63cb743a97 100644 --- a/arch/arm/mach-omap2/prm-regbits-34xx.h +++ b/arch/arm/mach-omap2/prm-regbits-34xx.h @@ -122,6 +122,7 @@ #define OMAP3430_MEMRETSTATE_MASK (1 << 8) /* PM_MPUGRPSEL_PER, PM_IVA2GRPSEL_PER shared bits */ +#define OMAP3630_GRPSEL_UART4_MASK (1 << 18) #define OMAP3430_GRPSEL_GPIO6_MASK (1 << 17) #define OMAP3430_GRPSEL_GPIO5_MASK (1 << 16) #define OMAP3430_GRPSEL_GPIO4_MASK (1 << 15) -- cgit v1.2.1 From cd4f1faee029593fc10039aeb592dc2986d55f61 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:20:32 +0530 Subject: OMAP3: PM: Add prepare idle and resume idle call for uart4 Add prepare idle and resume idle call for uart4 used by 3630. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 043faaa3f3dc..60baffa27cb3 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -388,6 +388,7 @@ void omap_sram_idle(void) /* PER */ if (per_next_state < PWRDM_POWER_ON) { omap_uart_prepare_idle(2); + omap_uart_prepare_idle(3); omap2_gpio_prepare_for_idle(per_next_state); if (per_next_state == PWRDM_POWER_OFF) omap3_per_save_context(); @@ -459,6 +460,7 @@ void omap_sram_idle(void) if (per_prev_state == PWRDM_POWER_OFF) omap3_per_restore_context(); omap_uart_resume_idle(2); + omap_uart_resume_idle(3); } /* Disable IO-PAD and IO-CHAIN wakeup */ -- cgit v1.2.1 From 52663aea10c3ce175b636ff3ed5a6d78fdbeec02 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:20:41 +0530 Subject: OMAP3: serial: Fix uart4 handling for 3630 This patch makes the following: - Adds missing wakeup padding register handling. - Fixes a hardcode to use PER module ONLY on UART3. Signed-off-by: Sergio Aguirre Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/serial.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 72b5c9896390..0bcc9df0c034 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -487,7 +487,7 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) omap_uart_smart_idle_enable(uart, 0); if (cpu_is_omap34xx()) { - u32 mod = (uart->num == 2) ? OMAP3430_PER_MOD : CORE_MOD; + u32 mod = (uart->num > 1) ? OMAP3430_PER_MOD : CORE_MOD; u32 wk_mask = 0; u32 padconf = 0; @@ -506,6 +506,10 @@ static void omap_uart_idle_init(struct omap_uart_state *uart) wk_mask = OMAP3430_ST_UART3_MASK; padconf = 0x19e; break; + case 3: + wk_mask = OMAP3630_ST_UART4_MASK; + padconf = 0x0d2; + break; } uart->wk_mask = wk_mask; uart->padconf = padconf; -- cgit v1.2.1 From b612633b5928077441b979471869753bfa93d41a Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:20:49 +0530 Subject: serial: Add OMAP high-speed UART driver This patch adds driver support for OMAP2/3/4 high speed UART. The driver is made separate from 8250 driver as we cannot over load 8250 driver with omap platform specific configuration for features like DMA, it makes easier to implement features like DMA and hardware flow control and software flow control configuration with this driver as required for the omap-platform. This patch involves only the core driver and its dependent. Cc: Tony Lindgren Signed-off-by: Govindraj.R Acked-by: Alan Cox Acked-by: Greg Kroah-Hartman Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/plat/omap-serial.h | 129 ++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 arch/arm/plat-omap/include/plat/omap-serial.h (limited to 'arch/arm') diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h new file mode 100644 index 000000000000..0d6f076cf748 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -0,0 +1,129 @@ +/* + * Driver for OMAP-UART controller. + * Based on drivers/serial/8250.c + * + * Copyright (C) 2010 Texas Instruments. + * + * Authors: + * Govindraj R + * Thara Gopinath + * + * 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 __OMAP_SERIAL_H__ +#define __OMAP_SERIAL_H__ + +#include +#include + +#include +#include + +#define DRIVER_NAME "omap-hsuart" + +/* + * Use tty device name as ttyO, [O -> OMAP] + * in bootargs we specify as console=ttyO0 if uart1 + * is used as console uart. + */ +#define OMAP_SERIAL_NAME "ttyO" + +#define OMAP_MDR1_DISABLE 0x07 +#define OMAP_MDR1_MODE13X 0x03 +#define OMAP_MDR1_MODE16X 0x00 +#define OMAP_MODE13X_SPEED 230400 + +/* + * LCR = 0XBF: Switch to Configuration Mode B. + * In configuration mode b allow access + * to EFR,DLL,DLH. + * Reference OMAP TRM Chapter 17 + * Section: 1.4.3 Mode Selection + */ +#define OMAP_UART_LCR_CONF_MDB 0XBF + +/* WER = 0x7F + * Enable module level wakeup in WER reg + */ +#define OMAP_UART_WER_MOD_WKUP 0X7F + +/* Enable XON/XOFF flow control on output */ +#define OMAP_UART_SW_TX 0x04 + +/* Enable XON/XOFF flow control on input */ +#define OMAP_UART_SW_RX 0x04 + +#define OMAP_UART_SYSC_RESET 0X07 +#define OMAP_UART_TCR_TRIG 0X0F +#define OMAP_UART_SW_CLR 0XF0 +#define OMAP_UART_FIFO_CLR 0X06 + +#define OMAP_UART_DMA_CH_FREE -1 + +#define RX_TIMEOUT (3 * HZ) +#define OMAP_MAX_HSUART_PORTS 4 + +#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA + +struct omap_uart_port_info { + bool dma_enabled; /* To specify DMA Mode */ + unsigned int uartclk; /* UART clock rate */ + void __iomem *membase; /* ioremap cookie or NULL */ + resource_size_t mapbase; /* resource base */ + unsigned long irqflags; /* request_irq flags */ + upf_t flags; /* UPF_* flags */ +}; + +struct uart_omap_dma { + u8 uart_dma_tx; + u8 uart_dma_rx; + int rx_dma_channel; + int tx_dma_channel; + dma_addr_t rx_buf_dma_phys; + dma_addr_t tx_buf_dma_phys; + unsigned int uart_base; + /* + * Buffer for rx dma.It is not required for tx because the buffer + * comes from port structure. + */ + unsigned char *rx_buf; + unsigned int prev_rx_dma_pos; + int tx_buf_size; + int tx_dma_used; + int rx_dma_used; + spinlock_t tx_lock; + spinlock_t rx_lock; + /* timer to poll activity on rx dma */ + struct timer_list rx_timer; + int rx_buf_size; + int rx_timeout; +}; + +struct uart_omap_port { + struct uart_port port; + struct uart_omap_dma uart_dma; + struct platform_device *pdev; + + unsigned char ier; + unsigned char lcr; + unsigned char mcr; + unsigned char fcr; + unsigned char efr; + + int use_dma; + /* + * Some bits in registers are cleared on a read, so they must + * be saved whenever the register is read but the bits will not + * be immediately processed. + */ + unsigned int lsr_break_flag; + unsigned char msr_saved_flags; + char name[20]; + unsigned long port_activity; +}; + +#endif /* __OMAP_SERIAL_H__ */ -- cgit v1.2.1 From 12a75da296d43784c960a2beaca002a08d06cf15 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:20:57 +0530 Subject: OMAP: SERIAL: Enable omap-serial driver in Kconfig Enable omap-serial driver in /mach-omap2/Kconfig and move 8250 driver selection for zoom boards. With omap-serial driver addition all omap-uarts can be handled with omap-serial driver. With addition of omap-serial driver console parameter needs be changed in bootargs from ttyS* should be replaced with ttyO* [O --> OMAP not ZERO] For example: ttyS0[UART1 on 3430SDP] changes to ttyO0. But with some boards that do not use omap-uart as console uart. we need to handle them with 8250 driver. Ex: ZOOM2/3. For zoom2/3 board we need to use 8250 serial driver and console parameter will remain ttyS0 which basically uses a Quad uart placed on the debug board connected through a gpio line. Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/Kconfig | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 1c4b2377862b..91dd215d05f0 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -11,9 +11,8 @@ config ARCH_OMAP2PLUS_TYPICAL select PM_RUNTIME select VFP select NEON if ARCH_OMAP3 || ARCH_OMAP4 - select SERIAL_8250 - select SERIAL_CORE_CONSOLE - select SERIAL_8250_CONSOLE + select SERIAL_OMAP + select SERIAL_OMAP_CONSOLE select I2C select I2C_OMAP select MFD @@ -222,12 +221,18 @@ config MACH_OMAP_ZOOM2 depends on ARCH_OMAP3 default y select OMAP_PACKAGE_CBB + select SERIAL_8250 + select SERIAL_CORE_CONSOLE + select SERIAL_8250_CONSOLE config MACH_OMAP_ZOOM3 bool "OMAP3630 Zoom3 board" depends on ARCH_OMAP3 default y select OMAP_PACKAGE_CBP + select SERIAL_8250 + select SERIAL_CORE_CONSOLE + select SERIAL_8250_CONSOLE config MACH_CM_T35 bool "CompuLab CM-T35 module" -- cgit v1.2.1 From 257f23d87f9309fee41d468575404b9371bf4c7d Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Mon, 27 Sep 2010 20:21:05 +0530 Subject: OMAP3: SERIAL: Initialize all omap-uarts for zoom boards Initialize all omap-uarts for zoom boards. Now zoom_peripheral_init will initialise all uarts for 3630. 3630sdp_board_init call zoom_peripheral_init so we can now remove serial_init from 3630sdp board init as zoom_peripheral_init now will do that the same. Signed-off-by: Anand Gadiyar Signed-off-by: Govindraj.R Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/board-3630sdp.c | 1 - arch/arm/mach-omap2/board-zoom-peripherals.c | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c index b359c3f7bb39..d5104519ab03 100644 --- a/arch/arm/mach-omap2/board-3630sdp.c +++ b/arch/arm/mach-omap2/board-3630sdp.c @@ -208,7 +208,6 @@ static struct flash_partitions sdp_flash_partitions[] = { static void __init omap_sdp_init(void) { omap3_mux_init(board_mux, OMAP_PACKAGE_CBP); - omap_serial_init(); zoom_peripherals_init(); board_smc91x_init(); board_flash_init(sdp_flash_partitions, chip_sel_sdp); diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c index e5eac46bbac9..35066b355bd5 100644 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -283,4 +283,5 @@ void __init zoom_peripherals_init(void) omap_i2c_init(); usb_musb_init(&musb_board_data); enable_board_wakeup_source(); + omap_serial_init(); } -- cgit v1.2.1