arm: mvebu: Add basic Armada 38x support
This patch adds support for the Marvell Armada 38x SoC family.
Supported peripherals are:
- UART
- Ethernet (mvneta)
- I2C
- SPI (including SPI NOR flash)
Tested on Marvell DB-88F6820-GP evaluation board.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Tested-by: Dirk Eibach <dirk.eibach@gdsys.cc>
diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c
index 1cf70a9..eca5e21 100644
--- a/arch/arm/mach-mvebu/cpu.c
+++ b/arch/arm/mach-mvebu/cpu.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2014 Stefan Roese <sr@denx.de>
+ * Copyright (C) 2014-2015 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -40,6 +40,20 @@
;
}
+int mvebu_soc_family(void)
+{
+ u16 devid = (readl(MVEBU_REG_PCIE_DEVID) >> 16) & 0xffff;
+
+ if (devid == SOC_MV78460_ID)
+ return MVEBU_SOC_AXP;
+
+ if (devid == SOC_88F6810_ID || devid == SOC_88F6820_ID ||
+ devid == SOC_88F6828_ID)
+ return MVEBU_SOC_A38X;
+
+ return MVEBU_SOC_UNKNOWN;
+}
+
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
{
@@ -52,21 +66,46 @@
case SOC_MV78460_ID:
puts("MV78460-");
break;
+ case SOC_88F6810_ID:
+ puts("MV88F6810-");
+ break;
+ case SOC_88F6820_ID:
+ puts("MV88F6820-");
+ break;
+ case SOC_88F6828_ID:
+ puts("MV88F6828-");
+ break;
default:
puts("Unknown-");
break;
}
- switch (revid) {
- case 1:
- puts("A0\n");
- break;
- case 2:
- puts("B0\n");
- break;
- default:
- puts("??\n");
- break;
+ if (mvebu_soc_family() == MVEBU_SOC_AXP) {
+ switch (revid) {
+ case 1:
+ puts("A0\n");
+ break;
+ case 2:
+ puts("B0\n");
+ break;
+ default:
+ printf("?? (%x)\n", revid);
+ break;
+ }
+ }
+
+ if (mvebu_soc_family() == MVEBU_SOC_A38X) {
+ switch (revid) {
+ case MV_88F68XX_Z1_ID:
+ puts("Z1\n");
+ break;
+ case MV_88F68XX_A0_ID:
+ puts("A0\n");
+ break;
+ default:
+ printf("?? (%x)\n", revid);
+ break;
+ }
}
return 0;
@@ -145,11 +184,13 @@
*/
mvebu_mbus_probe(NULL, 0);
- /*
- * Now the SDRAM access windows can be reconfigured using
- * the information in the SDRAM scratch pad registers
- */
- update_sdram_window_sizes();
+ if (mvebu_soc_family() == MVEBU_SOC_AXP) {
+ /*
+ * Now the SDRAM access windows can be reconfigured using
+ * the information in the SDRAM scratch pad registers
+ */
+ update_sdram_window_sizes();
+ }
/*
* Finally the mbus windows can be configured with the