[people/arne_f/kernel.git] / arch / arm / mach-iop32x / include / mach / uncompress.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * arch/arm/mach-iop32x/include/mach/uncompress.h
 */

#include <asm/types.h>
#include <asm/mach-types.h>
#include <linux/serial_reg.h>
#include <mach/hardware.h>

volatile u8 *uart_base;

#define TX_DONE		(UART_LSR_TEMT | UART_LSR_THRE)

static inline void putc(char c)
{
	while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
		barrier();
	uart_base[UART_TX] = c;
}

static inline void flush(void)
{
}

static __inline__ void __arch_decomp_setup(unsigned long arch_id)
{
	if (machine_is_iq80321())
		uart_base = (volatile u8 *)IQ80321_UART;
	else if (machine_is_iq31244() || machine_is_em7210())
		uart_base = (volatile u8 *)IQ31244_UART;
	else
		uart_base = (volatile u8 *)0xfe800000;
}

/*
 * nothing to do
 */
#define arch_decomp_setup()	__arch_decomp_setup(arch_id)
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
3f7e5815	2	/*
a09e64fb	3	* arch/arm/mach-iop32x/include/mach/uncompress.h
3f7e5815	4	*/
c852ac80	5
3f7e5815 LB	6	#include <asm/types.h>
	7	#include <asm/mach-types.h>
	8	#include <linux/serial_reg.h>
a09e64fb	9	#include <mach/hardware.h>
3f7e5815	10
8ea0de4b	11	volatile u8 *uart_base;
3f7e5815	12
c852ac80	13	#define TX_DONE (UART_LSR_TEMT \| UART_LSR_THRE)
3f7e5815 LB	14
	15	static inline void putc(char c)
	16	{
	17	while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
	18	barrier();
c852ac80	19	uart_base[UART_TX] = c;
3f7e5815 LB	20	}
	21
	22	static inline void flush(void)
	23	{
	24	}
	25
	26	static __inline__ void __arch_decomp_setup(unsigned long arch_id)
	27	{
	28	if (machine_is_iq80321())
	29	uart_base = (volatile u8 *)IQ80321_UART;
a8135fcf	30	else if (machine_is_iq31244() \|\| machine_is_em7210())
3f7e5815 LB	31	uart_base = (volatile u8 *)IQ31244_UART;
	32	else
	33	uart_base = (volatile u8 *)0xfe800000;
	34	}
	35
	36	/*
	37	* nothing to do
	38	*/
	39	#define arch_decomp_setup() __arch_decomp_setup(arch_id)