diff options
Diffstat (limited to 'arch/arm/mach-spear3xx/spear310.c')
| -rw-r--r-- | arch/arm/mach-spear3xx/spear310.c | 126 |
1 files changed, 108 insertions, 18 deletions
diff --git a/arch/arm/mach-spear3xx/spear310.c b/arch/arm/mach-spear3xx/spear310.c index b7c28764df9..641fd4cf6bc 100644 --- a/arch/arm/mach-spear3xx/spear310.c +++ b/arch/arm/mach-spear3xx/spear310.c @@ -3,8 +3,8 @@ * * SPEAr310 machine source file * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> + * Copyright (C) 2009-2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -13,8 +13,11 @@ #define pr_fmt(fmt) "SPEAr310: " fmt -#include <linux/ptrace.h> -#include <asm/irq.h> +#include <linux/amba/pl08x.h> +#include <linux/amba/serial.h> +#include <linux/of_platform.h> +#include <asm/hardware/vic.h> +#include <asm/mach/arch.h> #include <plat/shirq.h> #include <mach/generic.h> #include <mach/hardware.h> @@ -257,17 +260,79 @@ static struct spear_shirq shirq_intrcomm_ras = { }, }; -/* Add spear310 specific devices here */ +/* padmux devices to enable */ +static struct pmx_dev *spear310_evb_pmx_devs[] = { + /* spear3xx specific devices */ + &spear3xx_pmx_i2c, + &spear3xx_pmx_ssp, + &spear3xx_pmx_gpio_pin0, + &spear3xx_pmx_gpio_pin1, + &spear3xx_pmx_gpio_pin2, + &spear3xx_pmx_gpio_pin3, + &spear3xx_pmx_gpio_pin4, + &spear3xx_pmx_gpio_pin5, + &spear3xx_pmx_uart0, + + /* spear310 specific devices */ + &spear310_pmx_emi_cs_0_1_4_5, + &spear310_pmx_emi_cs_2_3, + &spear310_pmx_uart1, + &spear310_pmx_uart2, + &spear310_pmx_uart3_4_5, + &spear310_pmx_fsmc, + &spear310_pmx_rs485_0_1, + &spear310_pmx_tdm0, +}; + +/* uart devices plat data */ +static struct amba_pl011_data spear310_uart_data[] = { + { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart1_tx", + .dma_rx_param = "uart1_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart2_tx", + .dma_rx_param = "uart2_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart3_tx", + .dma_rx_param = "uart3_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart4_tx", + .dma_rx_param = "uart4_rx", + }, { + .dma_filter = pl08x_filter_id, + .dma_tx_param = "uart5_tx", + .dma_rx_param = "uart5_rx", + }, +}; -/* spear310 routines */ -void __init spear310_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs, - u8 pmx_dev_count) +/* Add SPEAr310 auxdata to pass platform data */ +static struct of_dev_auxdata spear310_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL, + &pl022_plat_data), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL, + &spear310_uart_data[0]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL, + &spear310_uart_data[1]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART3_BASE, NULL, + &spear310_uart_data[2]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART4_BASE, NULL, + &spear310_uart_data[3]), + OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART5_BASE, NULL, + &spear310_uart_data[4]), + {} +}; + +static void __init spear310_dt_init(void) { void __iomem *base; int ret = 0; - /* call spear3xx family common init function */ - spear3xx_init(); + of_platform_populate(NULL, of_default_bus_match_table, + spear310_auxdata_lookup, NULL); /* shared irq registration */ base = ioremap(SPEAR310_SOC_CONFIG_BASE, SZ_4K); @@ -297,13 +362,38 @@ void __init spear310_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs, pr_err("Error registering Shared IRQ 4\n"); } - /* pmx initialization */ - pmx_driver.base = base; - pmx_driver.mode = pmx_mode; - pmx_driver.devs = pmx_devs; - pmx_driver.devs_count = pmx_dev_count; + if (of_machine_is_compatible("st,spear310-evb")) { + /* pmx initialization */ + pmx_driver.base = base; + pmx_driver.mode = NULL; + pmx_driver.devs = spear310_evb_pmx_devs; + pmx_driver.devs_count = ARRAY_SIZE(spear310_evb_pmx_devs); - ret = pmx_register(&pmx_driver); - if (ret) - pr_err("padmux: registration failed. err no: %d\n", ret); + ret = pmx_register(&pmx_driver); + if (ret) + pr_err("padmux: registration failed. err no: %d\n", + ret); + } } + +static const char * const spear310_dt_board_compat[] = { + "st,spear310", + "st,spear310-evb", + NULL, +}; + +static void __init spear310_map_io(void) +{ + spear3xx_map_io(); + spear310_clk_init(); +} + +DT_MACHINE_START(SPEAR310_DT, "ST SPEAr310 SoC with Flattened Device Tree") + .map_io = spear310_map_io, + .init_irq = spear3xx_dt_init_irq, + .handle_irq = vic_handle_irq, + .timer = &spear3xx_timer, + .init_machine = spear310_dt_init, + .restart = spear_restart, + .dt_compat = spear310_dt_board_compat, +MACHINE_END |