summaryrefslogtreecommitdiff
path: root/include/asm-avr32/arch-at32ap700x/clk.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-avr32/arch-at32ap700x/clk.h')
-rw-r--r--include/asm-avr32/arch-at32ap700x/clk.h191
1 files changed, 0 insertions, 191 deletions
diff --git a/include/asm-avr32/arch-at32ap700x/clk.h b/include/asm-avr32/arch-at32ap700x/clk.h
deleted file mode 100644
index 7a0b655..0000000
--- a/include/asm-avr32/arch-at32ap700x/clk.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2006 Atmel Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#ifndef __ASM_AVR32_ARCH_CLK_H__
-#define __ASM_AVR32_ARCH_CLK_H__
-
-#include <asm/arch/chip-features.h>
-#include <asm/arch/portmux.h>
-
-#ifdef CONFIG_PLL
-#define PLL0_RATE ((CONFIG_SYS_OSC0_HZ / CONFIG_SYS_PLL0_DIV) \
- * CONFIG_SYS_PLL0_MUL)
-#define MAIN_CLK_RATE PLL0_RATE
-#else
-#define MAIN_CLK_RATE (CONFIG_SYS_OSC0_HZ)
-#endif
-
-static inline unsigned long get_cpu_clk_rate(void)
-{
- return MAIN_CLK_RATE >> CONFIG_SYS_CLKDIV_CPU;
-}
-static inline unsigned long get_hsb_clk_rate(void)
-{
- return MAIN_CLK_RATE >> CONFIG_SYS_CLKDIV_HSB;
-}
-static inline unsigned long get_pba_clk_rate(void)
-{
- return MAIN_CLK_RATE >> CONFIG_SYS_CLKDIV_PBA;
-}
-static inline unsigned long get_pbb_clk_rate(void)
-{
- return MAIN_CLK_RATE >> CONFIG_SYS_CLKDIV_PBB;
-}
-
-/* Accessors for specific devices. More will be added as needed. */
-static inline unsigned long get_sdram_clk_rate(void)
-{
- return get_hsb_clk_rate();
-}
-#ifdef AT32AP700x_CHIP_HAS_USART
-static inline unsigned long get_usart_clk_rate(unsigned int dev_id)
-{
- return get_pba_clk_rate();
-}
-#endif
-#ifdef AT32AP700x_CHIP_HAS_MACB
-static inline unsigned long get_macb_pclk_rate(unsigned int dev_id)
-{
- return get_pbb_clk_rate();
-}
-static inline unsigned long get_macb_hclk_rate(unsigned int dev_id)
-{
- return get_hsb_clk_rate();
-}
-#endif
-#ifdef AT32AP700x_CHIP_HAS_MMCI
-static inline unsigned long get_mci_clk_rate(void)
-{
- return get_pbb_clk_rate();
-}
-#endif
-#ifdef AT32AP700x_CHIP_HAS_SPI
-static inline unsigned long get_spi_clk_rate(unsigned int dev_id)
-{
- return get_pba_clk_rate();
-}
-#endif
-#ifdef AT32AP700x_CHIP_HAS_LCDC
-static inline unsigned long get_lcdc_clk_rate(unsigned int dev_id)
-{
- return get_hsb_clk_rate();
-}
-#endif
-
-extern void clk_init(void);
-
-/* Board code may need the SDRAM base clock as a compile-time constant */
-#define SDRAMC_BUS_HZ (MAIN_CLK_RATE >> CONFIG_SYS_CLKDIV_HSB)
-
-/* Generic clock control */
-enum gclk_parent {
- GCLK_PARENT_OSC0 = 0,
- GCLK_PARENT_OSC1 = 1,
- GCLK_PARENT_PLL0 = 2,
- GCLK_PARENT_PLL1 = 3,
-};
-
-/* Some generic clocks have specific roles */
-#define GCLK_DAC_SAMPLE_CLK 6
-#define GCLK_LCDC_PIXCLK 7
-
-extern unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
- unsigned long rate, unsigned long parent_rate);
-
-/**
- * gclk_set_rate - configure and enable a generic clock
- * @id: Which GCLK[id] to enable
- * @parent: Parent clock feeding the GCLK
- * @rate: Target rate of the GCLK in Hz
- *
- * Returns the actual GCLK rate in Hz, after rounding to the nearest
- * supported rate.
- *
- * All three parameters are usually constant, hence the inline.
- */
-static inline unsigned long gclk_set_rate(unsigned int id,
- enum gclk_parent parent, unsigned long rate)
-{
- unsigned long parent_rate;
-
- if (id > 7)
- return 0;
-
- switch (parent) {
- case GCLK_PARENT_OSC0:
- parent_rate = CONFIG_SYS_OSC0_HZ;
- break;
-#ifdef CONFIG_SYS_OSC1_HZ
- case GCLK_PARENT_OSC1:
- parent_rate = CONFIG_SYS_OSC1_HZ;
- break;
-#endif
-#ifdef PLL0_RATE
- case GCLK_PARENT_PLL0:
- parent_rate = PLL0_RATE;
- break;
-#endif
-#ifdef PLL1_RATE
- case GCLK_PARENT_PLL1:
- parent_rate = PLL1_RATE;
- break;
-#endif
- default:
- parent_rate = 0;
- break;
- }
-
- return __gclk_set_rate(id, parent, rate, parent_rate);
-}
-
-/**
- * gclk_enable_output - enable output on a GCLK pin
- * @id: Which GCLK[id] pin to enable
- * @drive_strength: Drive strength of external GCLK pin, if applicable
- */
-static inline void gclk_enable_output(unsigned int id,
- unsigned long drive_strength)
-{
- switch (id) {
- case 0:
- portmux_select_peripheral(PORTMUX_PORT_A, 1 << 30,
- PORTMUX_FUNC_A, drive_strength);
- break;
- case 1:
- portmux_select_peripheral(PORTMUX_PORT_A, 1 << 31,
- PORTMUX_FUNC_A, drive_strength);
- break;
- case 2:
- portmux_select_peripheral(PORTMUX_PORT_B, 1 << 19,
- PORTMUX_FUNC_A, drive_strength);
- break;
- case 3:
- portmux_select_peripheral(PORTMUX_PORT_B, 1 << 29,
- PORTMUX_FUNC_A, drive_strength);
- break;
- case 4:
- portmux_select_peripheral(PORTMUX_PORT_B, 1 << 30,
- PORTMUX_FUNC_A, drive_strength);
- break;
- }
-}
-
-#endif /* __ASM_AVR32_ARCH_CLK_H__ */