diff options
Diffstat (limited to 'arch/arm/mach-mmp/pxa910.c')
| -rw-r--r-- | arch/arm/mach-mmp/pxa910.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c new file mode 100644 index 000000000..b19a069d9 --- /dev/null +++ b/arch/arm/mach-mmp/pxa910.c @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-mmp/pxa910.c + * + * Code specific to PXA910 + */ +#include <linux/clk/mmp.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqchip/mmp.h> +#include <linux/platform_device.h> + +#include <asm/hardware/cache-tauros2.h> +#include <asm/mach/time.h> +#include "addr-map.h" +#include "regs-apbc.h" +#include <linux/soc/mmp/cputype.h> +#include "irqs.h" +#include "mfp.h" +#include "devices.h" +#include "pm-pxa910.h" +#include "pxa910.h" + +#include "common.h" + +#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000) + +static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata = +{ + MFP_ADDR_X(GPIO0, GPIO54, 0xdc), + MFP_ADDR_X(GPIO67, GPIO98, 0x1b8), + MFP_ADDR_X(GPIO100, GPIO109, 0x238), + + MFP_ADDR(GPIO123, 0xcc), + MFP_ADDR(GPIO124, 0xd0), + + MFP_ADDR(DF_IO0, 0x40), + MFP_ADDR(DF_IO1, 0x3c), + MFP_ADDR(DF_IO2, 0x38), + MFP_ADDR(DF_IO3, 0x34), + MFP_ADDR(DF_IO4, 0x30), + MFP_ADDR(DF_IO5, 0x2c), + MFP_ADDR(DF_IO6, 0x28), + MFP_ADDR(DF_IO7, 0x24), + MFP_ADDR(DF_IO8, 0x20), + MFP_ADDR(DF_IO9, 0x1c), + MFP_ADDR(DF_IO10, 0x18), + MFP_ADDR(DF_IO11, 0x14), + MFP_ADDR(DF_IO12, 0x10), + MFP_ADDR(DF_IO13, 0xc), + MFP_ADDR(DF_IO14, 0x8), + MFP_ADDR(DF_IO15, 0x4), + + MFP_ADDR(DF_nCS0_SM_nCS2, 0x44), + MFP_ADDR(DF_nCS1_SM_nCS3, 0x48), + MFP_ADDR(SM_nCS0, 0x4c), + MFP_ADDR(SM_nCS1, 0x50), + MFP_ADDR(DF_WEn, 0x54), + MFP_ADDR(DF_REn, 0x58), + MFP_ADDR(DF_CLE_SM_OEn, 0x5c), + MFP_ADDR(DF_ALE_SM_WEn, 0x60), + MFP_ADDR(SM_SCLK, 0x64), + MFP_ADDR(DF_RDY0, 0x68), + MFP_ADDR(SM_BE0, 0x6c), + MFP_ADDR(SM_BE1, 0x70), + MFP_ADDR(SM_ADV, 0x74), + MFP_ADDR(DF_RDY1, 0x78), + MFP_ADDR(SM_ADVMUX, 0x7c), + MFP_ADDR(SM_RDY, 0x80), + + MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84), + + MFP_ADDR_END, +}; + +void __init pxa910_init_irq(void) +{ + icu_init_irq(); +#ifdef CONFIG_PM + icu_irq_chip.irq_set_wake = pxa910_set_wake; +#endif +} + +static int __init pxa910_init(void) +{ + if (cpu_is_pxa910()) { +#ifdef CONFIG_CACHE_TAUROS2 + tauros2_init(0); +#endif + mfp_init_base(MFPR_VIRT_BASE); + mfp_init_addr(pxa910_mfp_addr_map); + pxa910_clk_init(APB_PHYS_BASE + 0x50000, + AXI_PHYS_BASE + 0x82800, + APB_PHYS_BASE + 0x15000, + APB_PHYS_BASE + 0x3b000); + } + + return 0; +} +postcore_initcall(pxa910_init); + +/* system timer - clock enabled, 3.25MHz */ +#define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3)) +#define APBC_TIMERS APBC_REG(0x34) + +void __init pxa910_timer_init(void) +{ + /* reset and configure */ + __raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS); + __raw_writel(TIMER_CLK_RST, APBC_TIMERS); + + mmp_timer_init(IRQ_PXA910_AP1_TIMER1, 3250000); +} + +/* on-chip devices */ + +/* NOTE: there are totally 3 UARTs on PXA910: + * + * UART1 - Slow UART (can be used both by AP and CP) + * UART2/3 - Fast UART + * + * To be backward compatible with the legacy FFUART/BTUART/STUART sequence, + * they are re-ordered as: + * + * pxa910_device_uart1 - UART2 as FFUART + * pxa910_device_uart2 - UART3 as BTUART + * + * UART1 is not used by AP for the moment. + */ +PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22); +PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24); +PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28); +PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28); +PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10); +PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10); +PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10); +PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10); +PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99); +PXA910_DEVICE(disp, "mmp-disp", 0, LCD, 0xd420b000, 0x1ec); +PXA910_DEVICE(fb, "mmp-fb", -1, NONE, 0, 0); +PXA910_DEVICE(panel, "tpo-hvga", -1, NONE, 0, 0); + +struct resource pxa910_resource_gpio[] = { + { + .start = 0xd4019000, + .end = 0xd4019fff, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_PXA910_AP_GPIO, + .end = IRQ_PXA910_AP_GPIO, + .name = "gpio_mux", + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device pxa910_device_gpio = { + .name = "mmp-gpio", + .id = -1, + .num_resources = ARRAY_SIZE(pxa910_resource_gpio), + .resource = pxa910_resource_gpio, +}; + +static struct resource pxa910_resource_rtc[] = { + { + .start = 0xd4010000, + .end = 0xd401003f, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_PXA910_RTC_INT, + .end = IRQ_PXA910_RTC_INT, + .name = "rtc 1Hz", + .flags = IORESOURCE_IRQ, + }, { + .start = IRQ_PXA910_RTC_ALARM, + .end = IRQ_PXA910_RTC_ALARM, + .name = "rtc alarm", + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device pxa910_device_rtc = { + .name = "sa1100-rtc", + .id = -1, + .num_resources = ARRAY_SIZE(pxa910_resource_rtc), + .resource = pxa910_resource_rtc, +}; |