diff options
Diffstat (limited to 'arch/arm/mach-mmp/pxa168.c')
| -rw-r--r-- | arch/arm/mach-mmp/pxa168.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c new file mode 100644 index 000000000..1e9389245 --- /dev/null +++ b/arch/arm/mach-mmp/pxa168.c @@ -0,0 +1,175 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-mmp/pxa168.c + * + * Code specific to PXA168 + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/clk/mmp.h> +#include <linux/platform_device.h> +#include <linux/platform_data/mv_usb.h> +#include <linux/dma-mapping.h> + +#include <asm/mach/time.h> +#include <asm/system_misc.h> + +#include "addr-map.h" +#include "common.h" +#include <linux/soc/mmp/cputype.h> +#include "devices.h" +#include "irqs.h" +#include "mfp.h" +#include "pxa168.h" +#include "regs-apbc.h" +#include "regs-apmu.h" +#include "regs-usb.h" + +#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000) + +static struct mfp_addr_map pxa168_mfp_addr_map[] __initdata = +{ + MFP_ADDR_X(GPIO0, GPIO36, 0x04c), + MFP_ADDR_X(GPIO37, GPIO55, 0x000), + MFP_ADDR_X(GPIO56, GPIO123, 0x0e0), + MFP_ADDR_X(GPIO124, GPIO127, 0x0f4), + + MFP_ADDR_END, +}; + +void __init pxa168_init_irq(void) +{ + icu_init_irq(); +} + +static int __init pxa168_init(void) +{ + if (cpu_is_pxa168()) { + mfp_init_base(MFPR_VIRT_BASE); + mfp_init_addr(pxa168_mfp_addr_map); + pxa168_clk_init(APB_PHYS_BASE + 0x50000, + AXI_PHYS_BASE + 0x82800, + APB_PHYS_BASE + 0x15000); + } + + return 0; +} +postcore_initcall(pxa168_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 pxa168_timer_init(void) +{ + /* this is early, we have to initialize the CCU registers by + * ourselves instead of using clk_* API. Clock rate is defined + * by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running + */ + __raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS); + + /* 3.25MHz, bus/functional clock enabled, release reset */ + __raw_writel(TIMER_CLK_RST, APBC_TIMERS); + + mmp_timer_init(IRQ_PXA168_TIMER1, 3250000); +} + +void pxa168_clear_keypad_wakeup(void) +{ + uint32_t val; + uint32_t mask = APMU_PXA168_KP_WAKE_CLR; + + /* wake event clear is needed in order to clear keypad interrupt */ + val = __raw_readl(APMU_WAKE_CLR); + __raw_writel(val | mask, APMU_WAKE_CLR); +} + +/* on-chip devices */ +PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22); +PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24); +PXA168_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4026000, 0x30, 23, 24); +PXA168_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28); +PXA168_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28); +PXA168_DEVICE(pwm1, "pxa168-pwm", 0, NONE, 0xd401a000, 0x10); +PXA168_DEVICE(pwm2, "pxa168-pwm", 1, NONE, 0xd401a400, 0x10); +PXA168_DEVICE(pwm3, "pxa168-pwm", 2, NONE, 0xd401a800, 0x10); +PXA168_DEVICE(pwm4, "pxa168-pwm", 3, NONE, 0xd401ac00, 0x10); +PXA168_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99); +PXA168_DEVICE(ssp1, "pxa168-ssp", 0, SSP1, 0xd401b000, 0x40, 52, 53); +PXA168_DEVICE(ssp2, "pxa168-ssp", 1, SSP2, 0xd401c000, 0x40, 54, 55); +PXA168_DEVICE(ssp3, "pxa168-ssp", 2, SSP3, 0xd401f000, 0x40, 56, 57); +PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59); +PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61); +PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8); +PXA168_DEVICE(keypad, "pxa27x-keypad", -1, KEYPAD, 0xd4012000, 0x4c); +PXA168_DEVICE(eth, "pxa168-eth", -1, MFU, 0xc0800000, 0x0fff); + +struct resource pxa168_resource_gpio[] = { + { + .start = 0xd4019000, + .end = 0xd4019fff, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_PXA168_GPIOX, + .end = IRQ_PXA168_GPIOX, + .name = "gpio_mux", + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device pxa168_device_gpio = { + .name = "mmp-gpio", + .id = -1, + .num_resources = ARRAY_SIZE(pxa168_resource_gpio), + .resource = pxa168_resource_gpio, +}; + +struct resource pxa168_usb_host_resources[] = { + /* USB Host conroller register base */ + [0] = { + .start = PXA168_U2H_REGBASE + U2x_CAPREGS_OFFSET, + .end = PXA168_U2H_REGBASE + USB_REG_RANGE, + .flags = IORESOURCE_MEM, + .name = "capregs", + }, + /* USB PHY register base */ + [1] = { + .start = PXA168_U2H_PHYBASE, + .end = PXA168_U2H_PHYBASE + USB_PHY_RANGE, + .flags = IORESOURCE_MEM, + .name = "phyregs", + }, + [2] = { + .start = IRQ_PXA168_USB2, + .end = IRQ_PXA168_USB2, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 pxa168_usb_host_dmamask = DMA_BIT_MASK(32); +struct platform_device pxa168_device_usb_host = { + .name = "pxa-sph", + .id = -1, + .dev = { + .dma_mask = &pxa168_usb_host_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + + .num_resources = ARRAY_SIZE(pxa168_usb_host_resources), + .resource = pxa168_usb_host_resources, +}; + +int __init pxa168_add_usb_host(struct mv_usb_platform_data *pdata) +{ + pxa168_device_usb_host.dev.platform_data = pdata; + return platform_device_register(&pxa168_device_usb_host); +} + +void pxa168_restart(enum reboot_mode mode, const char *cmd) +{ + soft_restart(0xffff0000); +} |