u-boot/arch/arm/mach-at91/armv7/sama5d2_devices.c
Wenyou Yang 245cbc583d ARM: at91: Get the Chip ID of SAMA5D2 SiP
The SAMA5D2 SiP(System in Package) has different Chip IDs in the
CHIPID and CHIP_EXID registers.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-14 16:02:45 -04:00

76 lines
1.7 KiB
C

/*
* Copyright (C) 2015 Atmel Corporation
* Wenyou Yang <wenyou.yang@atmel.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/clk.h>
#include <asm/arch/sama5d2.h>
int cpu_is_sama5d2(void)
{
unsigned int chip_id = get_chip_id();
return ((chip_id == ARCH_ID_SAMA5D2) ||
(chip_id == ARCH_ID_SAMA5D2_SIP)) ? 1 : 0;
}
char *get_cpu_name(void)
{
unsigned int chip_id = get_chip_id();
unsigned int extension_id = get_extension_chip_id();
if (chip_id == ARCH_ID_SAMA5D2) {
switch (extension_id) {
case ARCH_EXID_SAMA5D21CU:
return "SAMA5D21";
case ARCH_EXID_SAMA5D22CU:
return "SAMA5D22-CU";
case ARCH_EXID_SAMA5D22CN:
return "SAMA5D22-CN";
case ARCH_EXID_SAMA5D23CU:
return "SAMA5D23-CU";
case ARCH_EXID_SAMA5D24CX:
return "SAMA5D24-CX";
case ARCH_EXID_SAMA5D24CU:
return "SAMA5D24-CU";
case ARCH_EXID_SAMA5D26CU:
return "SAMA5D26-CU";
case ARCH_EXID_SAMA5D27CU:
return "SAMA5D27-CU";
case ARCH_EXID_SAMA5D27CN:
return "SAMA5D27-CN";
case ARCH_EXID_SAMA5D28CU:
return "SAMA5D28-CU";
case ARCH_EXID_SAMA5D28CN:
return "SAMA5D28-CN";
}
}
if ((chip_id == ARCH_ID_SAMA5D2) || (chip_id == ARCH_ID_SAMA5D2_SIP)) {
switch (extension_id) {
case ARCH_EXID_SAMA5D225C_D1M:
return "SAMA5D225 128M bits DDR2 SDRAM";
case ARCH_EXID_SAMA5D27C_D5M:
return "SAMA5D27 512M bits DDR2 SDRAM";
case ARCH_EXID_SAMA5D27C_D1G:
return "SAMA5D27 1G bits DDR2 SDRAM";
case ARCH_EXID_SAMA5D28C_D1G:
return "SAMA5D28 1G bits DDR2 SDRAM";
}
}
return "Unknown CPU type";
}
#ifdef CONFIG_USB_GADGET_ATMEL_USBA
void at91_udp_hw_init(void)
{
at91_upll_clk_enable();
at91_periph_clk_enable(ATMEL_ID_UDPHS);
}
#endif