From: Matt Mullins <mmullins@mmlx.us>
Date: Wed, 12 Aug 2015 06:07:41 +0000 (-0700)
Subject: Working early_printk for Edison's HSU.
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=e732d5deb63553f53b125700b474f61fad7a3fc0;p=linux-edison.git

Working early_printk for Edison's HSU.

This hard-codes the address that port 2 would use.
---

diff --git a/arch/x86/platform/intel-mid/early_printk_intel_mid.c b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
index 3b361bdaca5..3d32527b3d9 100644
--- a/arch/x86/platform/intel-mid/early_printk_intel_mid.c
+++ b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
@@ -409,24 +409,8 @@ void hsu_early_console_init(const char *s)
 	u8 lcr;
 	int *clkctl;
 
-	if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER) {
-		paddr = MERR_HSU_PORT_BASE;
-		clkctl = (int *)set_fixmap_offset_nocache(FIX_CLOCK_CTL,
-							  MERR_HSU_CLK_CTL);
-	} else {
-		paddr = MFLD_HSU_PORT_BASE;
-		clkctl = NULL;
-	}
-
-	/*
-	 * Select the early HSU console port if specified by user in the
-	 * kernel command line.
-	 */
-	if (*s && !kstrtoul(s, 10, &port))
-		port = clamp_val(port, 0, 2);
-
-	paddr += port * 0x80;
-	phsu = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, paddr);
+	phsu = (void *) __va(0xff010180);
+	return;
 
 	/* Disable FIFO */
 	writeb(0x0, phsu + UART_FCR);